OPTICAL COATING LABORATORY INC
SC 13G/A, 1999-11-15
OPTICAL INSTRUMENTS & LENSES
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<PAGE>   1
                                  UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                                 SCHEDULE 13G/A
                                 (RULE 13d-102)

                  INFORMATION PURSUANT TO RULES 13d-1 AND 13d-2

                    UNDER THE SECURITIES EXCHANGE ACT OF 1934
                               (Amendment No. 7)*


                        OPTICAL COATING LABORATORY, INC.
                                (Name of Issuer)


                                  COMMON STOCK
                         (Title of Class of Securities)


                                   683829105
                                 (CUSIP Number)


                                NOVEMBER 5, 1999
             (Date of Event Which Requires Filing of this Statement)


Check the appropriate box to designate the rule pursuant to which this
Schedule is filed:

            [   ]  Rule 13d-1(b)

            [ X ]  Rule 13d-1(c)

            [   ]  Rule 13d-1(d)

Check the following box if a fee is being paid with this statement [ ].

*The remainder of this cover page shall be filled out for a reporting person's
initial filing on this form with respect to the subject class of securities,
and for any subsequent amendment containing information which would alter the
disclosures provided in a prior cover page.

The information required in the remainder of this cover page shall not be
deemed to be "filed" for the purpose of Section 18 of the Securities Exchange
Act of 1934 ("Act") or otherwise subject to the liabilities of that section of
the Act but shall be subject to all other provisions of the Act (however, see
the Notes).


<PAGE>   2


                                  Page 2 of 18

CUSIP NO. 683829105                                    13G/A

1.   Names of Reporting Person(s).
     I.R.S. Identification Nos. of above person(s) (entities only).
       Investors Canadian Small Cap Fund
       Reporting Person, a non-U.S, entity, has no I.R.S. Identification
       Number.

2.   Check the Appropriate Box if a member of a Group (See Instructions)
     (a) [ ]
     (b) [ ]

3.   SEC Use Only

4.   Citizenship or Place of Organization
     Manitoba, Canada

Number of Shares        5.          Sole Voting Power 0
Beneficially Owned      6.          Shared Voting Power 146,350
by Each Reporting       7.          Sole Dispositive Power 0
Person With             8.          Shared Dispositive Power 146,350

9.   Aggregate Amount Beneficially Owned by Each Reporting Person
     146,350

10.  Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See
     Instructions)
     [  ]

11.  Percent of Class Represented by Amount in Row (9):
     1.0%

12.  Type of Reporting Person (See Instructions)
     00 (Open-end mutual fund trust governed by the laws of the Province of
     Manitoba, Canada)


                                  2A


<PAGE>   3


                                  Page 3 of 18

CUSIP NO. 683829105                                    13G/A

1.   Names of Reporting Person(s).
     I.R.S. Identification Nos. of above person(s) (entities only).
       Investors Canadian Small Cap Fund II
       Reporting Person, a non-U.S. entity, has no I.R.S. Identification
       Number.

2.   Check the Appropriate Box if a member of a Group (See Instructions)
     (a) [ ]
     (b) [ ]

3.   SEC Use Only

4.   Citizenship or Place of Organization
     Manitoba, Canada

Number of Shares        5.          Sole Voting Power 0
Beneficially Owned      6.          Shared Voting Power  77,100
by Each Reporting       7.          Sole Dispositive Power 0
Person With             8.          Shared Dispositive Power 77,100

9.   Aggregate Amount Beneficially Owned by Each Reporting Person
     77,100

10.  Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See
     Instructions)
     [  ]

11.  Percent of Class Represented by Amount in Row (9):
     0.5%

12.  Type of Reporting Person (See Instructions)
     00 (Open-end mutual fund trust governed by the laws of the Province of
     Manitoba, Canada)


                                  2B


<PAGE>   4


                                 Page 4 of 18

CUSIP NO. 683829105                                    13G/A

1.   Names of Reporting Person(s).
     I.R.S. Identification Nos. of above person(s) (entities only).
       Investors Summa Fund
       Reporting Person, a non-U.S. entity, has no I.R.S. Identification
       Number.

2.   Check the Appropriate Box if a member of a Group (See Instructions)
     (a) [ ]
     (b) [ ]

3.   SEC Use Only

4.   Citizenship or Place of Organization
     Manitoba, Canada

Number of Shares        5.          Sole Voting Power 0
Beneficially Owned      6.          Shared Voting Power 220,550
by Each Reporting       7.          Sole Dispositive Power 0
Person With             8.          Shared Dispositive Power 220,550

9.   Aggregate Amount Beneficially Owned by Each Reporting Person
     220,550

10.  Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See
     Instructions)
     [  ]

11.  Percent of Class Represented by Amount in Row (9):
     1.6%

12.  Type of Reporting Person (See Instructions)
     00 (Open-end mutual fund trust governed by the laws of the Province of
     Manitoba, Canada)


                                  2C


<PAGE>   5


                                  Page 5 of 18

CUSIP NO. 683829105                                    13G/A

1.   Names of Reporting Person(s).
     I.R.S. Identification Nos. of above person(s) (entities only).
       Pooled Equity Fund
       Reporting Person, a non-U.S. entity, has no I.R.S. Identification
       Number.

2.   Check the Appropriate Box if a member of a Group (See Instructions)
     (a) [ ]
     (b) [ ]

3.   SEC Use Only

4.   Citizenship or Place of Organization
     Manitoba, Canada

Number of Shares        5.          Sole Voting Power 0
Beneficially Owned      6.          Shared Voting Power 0
by Each Reporting       7.          Sole Dispositive Power 0
Person With             8.          Shared Dispositive Power 0

9.   Aggregate Amount Beneficially Owned by Each Reporting Person
     0

10.  Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See
     Instructions)
     [  ]

11.  Percent of Class Represented by Amount in Row (9):
     0.0%

12.  Type of Reporting Person (See Instructions)
     00 (Open-end mutual fund trust governed by the laws of the Province of
     Manitoba, Canada)


                                  2D


<PAGE>   6


                                  Page 6 of 18

CUSIP NO. 683829105                                    13G/A

1.   Names of Reporting Person(s).
     I.R.S. Identification Nos. of above person(s) (entities only).
       Investors Global Science & Technology Fund
       Reporting Person, a non-U.S. entity, has no I.R.S. Identification
       Number.

2.   Check the Appropriate Box if a member of a Group (See Instructions)
     (a) [ ]
     (b) [ ]

3.   SEC Use Only

4.   Citizenship or Place of Organization
     Manitoba, Canada

Number of Shares        5.          Sole Voting Power 0
Beneficially Owned      6.          Shared Voting Power 125,050
by Each Reporting       7.          Sole Dispositive Power 0
Person With             8.          Shared Dispositive Power 125,050

9.   Aggregate Amount Beneficially Owned by Each Reporting Person
     125,050

10.  Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See
     Instructions)
     [  ]

11.  Percent of Class Represented by Amount in Row (9):
     0.9%

12.  Type of Reporting Person (See Instructions)
     00 (Open-end mutual fund trust governed by the laws of the Province of
     Manitoba, Canada)


                                  2E


<PAGE>   7


                                  Page 7 of 18

CUSIP NO. 683829105                                    13G/A

1.   Names of Reporting Person(s).
     I.R.S. Identification Nos. of above person(s) (entities only).
       Investors Canadian Balanced Fund
       Reporting Person, a non-U.S. entity, has no I.R.S. Identification
       Number.

2.   Check the Appropriate Box if a member of a Group (See Instructions)
     (a) [ ]
     (b) [ ]

3.   SEC Use Only

4.   Citizenship or Place of Organization
     Manitoba, Canada

Number of Shares        5.          Sole Voting Power 0
Beneficially Owned      6.          Shared Voting Power 0
by Each Reporting       7.          Sole Dispositive Power 0
Person With             8.          Shared Dispositive Power 0

9.   Aggregate Amount Beneficially Owned by Each Reporting Person
     0

10.  Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See
     Instructions)
     [  ]

11.  Percent of Class Represented by Amount in Row (9):
     0.0%

12.  Type of Reporting Person (See Instructions)
     00 (Open-end mutual fund trust governed by the laws of the Province of
     Manitoba, Canada)


                                  2F


<PAGE>   8


                                  Page 8 of 18

CUSIP NO. 683829105                                    13G/A

1.   Names of Reporting Person(s).
     I.R.S. Identification Nos. of above person(s) (entities only).
       Investors Mutual of Canada
       Reporting Person, a non-U.S. entity, has no I.R.S. Identification
       Number.

2.   Check the Appropriate Box if a member of a Group (See Instructions)
     (a) [ ]
     (b) [ ]

3.   SEC Use Only

4.   Citizenship or Place of Organization
     Manitoba, Canada

Number of Shares        5.          Sole Voting Power 0
Beneficially Owned      6.          Shared Voting Power 46,350
by Each Reporting       7.          Sole Dispositive Power 0
Person With             8.          Shared Dispositive Power 46,350

9.   Aggregate Amount Beneficially Owned by Each Reporting Person
     46,350

10.  Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See
     Instructions)
     [  ]

11.  Percent of Class Represented by Amount in Row (9):
     0.3%

12.  Type of Reporting Person (See Instructions)
     00 (Open-end mutual fund trust governed by the laws of the Province of
     Manitoba, Canada)


                                  2G


<PAGE>   9


                                  Page 9 of 18

CUSIP NO. 683829105                                    13G/A

1.   Names of Reporting Person(s).
     I.R.S. Identification Nos. of above person(s) (entities only).
       I.G. Investment Management, Ltd.
       Reporting Person, a non-U.S. entity, has no I.R.S. Identification
       Number.

2.   Check the Appropriate Box if a member of a Group (See Instructions)
     (a) [ ]
     (b) [ ]

3.   SEC Use Only

4.   Citizenship or Place of Organization
     Canada

Number of Shares        5.          Sole Voting Power 0
Beneficially Owned      6.          Shared Voting Power 615,400
by Each Reporting       7.          Sole Dispositive Power 0
Person With             8.          Shared Dispositive Power 615,400

9.   Aggregate Amount Beneficially Owned by Each Reporting Person
     615,400

10.  Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See
     Instructions)
     [  ]

11.  Percent of Class Represented by Amount in Row (9):
     4.3%

12.  Type of Reporting Person (See Instructions)
     CO (Corporation governed by the Canada Business Corporations Act), IA
     (Canadian)


                                  2H


<PAGE>   10


                                  Page 10 of 18

CUSIP NO. 683829105                                    13G/A

1.   Names of Reporting Person(s).
     I.R.S. Identification Nos. of above person(s) (entities only).
       Investors Group Trust Co. Ltd.
       Reporting Person, a non-U.S. entity, has no I.R.S. Identification
       Number.

2.   Check the Appropriate Box if a member of a Group (See Instructions)
     (a) [ ]
     (b) [ ]

3.   SEC Use Only

4.   Citizenship or Place of Organization
     Manitoba, Canada

Number of Shares        5.          Sole Voting Power 0
Beneficially Owned      6.          Shared Voting Power 615,400
by Each Reporting       7.          Sole Dispositive Power 0
Person With             8.          Shared Dispositive Power 615,400

9.   Aggregate Amount Beneficially Owned by Each Reporting Person
     615,400

10.  Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See
     Instructions)
     [  ]

11.  Percent of Class Represented by Amount in Row (9):
     4.3%

12.  Type of Reporting Person (See Instructions)
     CO (Corporation governed by the Manitoba Corporations Act)


                                  2I


<PAGE>   11


                                  Page 11 of 18

CUSIP NO. 683829105                                    13G/A

1.   Name of Reporting Person(s).
     I.R.S. Identification Nos. of above person(s) (entities only).
       Investors Group Inc.
       Reporting Person, a non-U.S. entity, has no I.R.S. Identification
       Number.

2.   Check the Appropriate Box if a member of a Group (See Instructions)
     (a) [ ]
     (b) [ ]

3.   SEC Use Only

4.   Citizenship or Place of Organization
     Canada

Number of Shares        5.          Sole Voting Power 0
Beneficially Owned      6.          Shared Voting Power 615,400
by Each Reporting       7.          Sole Dispositive Power 0
Person With             8.          Shared Dispositive Power 615,400

9.   Aggregate Amount Beneficially Owned by Each Reporting Person
     615,400

10.  Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See
     Instructions)
     [  ]

11.  Percent of Class Represented by Amount in Row (9):
     4.3%

12.  Type of Reporting Person (See Instructions)
     CO (Corporation governed by the Canada Business Corporations Act), HC


                                  2J


<PAGE>   12


                                  Page 12 of 18

CUSIP NO. 683829105                                    13G/A

1.   Name of Reporting Person(s).
     I.R.S. Identification Nos. of above person(s) (entities only).
       Investors Group Trustco Inc.
       Reporting Person, a non-U.S. entity, has no I.R.S. Identification
       Number.

2.   Check the Appropriate Box if a member of a Group (See Instructions)
     (a) [ ]
     (b) [ ]

3.   SEC Use Only

4.   Citizenship or Place of Organization
     Canada

Number of Shares        5.          Sole Voting Power 0
Beneficially Owned      6.          Shared Voting Power 615,400
by Each Reporting       7.          Sole Dispositive Power 0
Person With             8.          Shared Dispositive Power 615,400

9.   Aggregate Amount Beneficially Owned by Each Reporting Person
     615,400

10.  Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See
     Instructions)
     [  ]

11.  Percent of Class Represented by Amount in Row (9):
     4.3%

12.  Type of Reporting Person (See Instructions)
     CO (Corporation governed by the Canada Business Corporations Act), HC


                                  2K


<PAGE>   13


                                  Page 13 of 18

ITEM 1(a) NAME OF ISSUER:

     Optical Coating Laboratory, Inc.

ITEM 1(b) ADDRESS OF ISSUER'S PRINCIPAL EXECUTIVE OFFICES:

     2789 Northpoint Parkway
     Santa Rosa, California
     95407-7397

ITEM 2(a) NAME OF PERSON FILING:

     This joint statement is filed by and on behalf of the following Reporting
Persons signing this amended Schedule 13G and are hereafter referred to as the
"Reporting Persons": Investors Group Inc. ("IGI"), Investors Group Trustco
Inc. ("Trustco"), Investors Group Trust Co. Ltd. (the "Trustee"), I.G.
Investment Management, Ltd. (the "Management Company"), and Investors Canadian
Small Cap Fund, Investors Canadian Small Cap Fund II, Investors Summa Fund,
Pooled Equity Fund, Investors Global Science & Technology Fund, Investors
Canadian Balanced Fund and Investors Mutual of Canada (collectively, the
"Funds").

ITEM 2(b) ADDRESS OF PRINCIPAL BUSINESS OFFICE OR, IF NONE, RESIDENCE:

     All of the Reporting Persons have their principal place of business at:

                  One Canada Centre
                  447 Portage Avenue
                  Winnipeg, Manitoba
                  R3C 3B6

ITEM 2(c) CITIZENSHIP:

     IGI is a corporation formed under the Canada Business Corporations Act.
It is a diversified-financial services holding company.

     Trustco is a corporation formed under the Canada Business Corporations
Act. It is a holding company.

     The Management Company is a corporation formed under the Canada Business
Corporations Act. It provides management services to the Funds.

     The Trustee is a corporation formed under the Manitoba Corporations Act.
It is the trustee for the Unitholders of the Funds and serves as the trustee
for other open-end mutual fund trusts organized and affiliated with IGI.

     The Funds are open-end mutual fund trusts of which the Unitholders are
beneficiaries established in accordance with a Declaration of Trust under the
laws of Manitoba, Canada.


<PAGE>   14


                                  Page 14 of 18

     IGI owns 100% of the issued and outstanding Class A Common Shares of
Trustco. Trustco owns 100% of the issued and outstanding Class A Common Shares
of the Management Company. Trustco also owns, directly or indirectly, 100% of
the issued and outstanding Common Shares of the Trustee. Trustco, the
Management Company, the Trustee, and the Funds are all ultimately controlled
by IGI through its ownership of 100% of the issued and outstanding Class A
Common Shares of Trustco.

     Power Financial Corporation owns 67.4% of the common stock of Investors
Group Inc. Power Corporation of Canada, of which Mr. Paul Desmarais controls
67.7% of the voting power, owns 67.5% of the common stock of Power Financial
Corporation.

ITEM 2(d) TITLE OF CLASS OF SECURITIES:

     The class of equity securities to which this amended statement on
Schedule 13G relates is the Common Stock, $.01 par value (the "Common Stock"
or the "Securities"), of Optical Coating Laboratory, Inc., a Delaware
corporation (the "Issuer").

ITEM 2(e) CUSIP NUMBER:

     683829105

ITEM 3  IF THIS STATEMENT IS FILED PURSUANT TO SECTIONS 240.13d-1(b), OR
        240.13d-2(b) OR (c), CHECK WHETHER THE PERSON FILING IS A:

(a) [ ] Broker or dealer registered under section 15 of the Act (15 U.S.C.
        78o).

(b) [ ] Bank as defined in section 3(a)(6) of the Act (15 U.S.C.78c).

(c) [ ] Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C.
        78c).

(d) [ ] Investment company registered under section 8 of the Investment
        Company Act of 1940 (15 U.S.C. 80a-8).

(e) [ ] An investment adviser in accordance with 240.13d-1(b)(1)(ii)(E);

(f) [ ] An employee benefit plan or endowment fund in accordance with
        240.13d-1(b)(1)(ii)(F);

(g) [ ] A parent holding company or control person in accordance with
        240.13d-1(b)(1)(ii)(G);

(h) [ ] A savings association as defined in Section 3(b) of the Federal
        Deposit Insurance Act (12 U.S.C. 1813);

(i) [ ] A church plan that is excluded from the definition of an investment
        company under section 3(c)(14) of the Investment Company Act of 1940
        (15 U.S.C. 80a-3);

(j) [ ] Group, in accordance with 240.13d-1(b)(1)(ii)(J).

If this statement is filed pursuant to Rule 13d-1(c), check this box. [ X ]

<PAGE>   15


                                  Page 15 of 18

ITEM 4 OWNERSHIP.

     Incorporated by reference to Items (5)-(9) and (11) of the cover page
pertaining to each Reporting Person.

ITEM 5 OWNERSHIP OF FIVE PERCENT OR LESS OF A CLASS.

If this statement is being filed to report the fact that as of the date hereof
the reporting person has ceased to be the beneficial owner of more than five
percent of the class of securities, check the following:

[ X ]

ITEM 6 OWNERSHIP OF MORE THAN FIVE PERCENT ON BEHALF OF ANOTHER PERSON.

     Not applicable

ITEM 7 IDENTIFICATION AND CLASSIFICATION OF THE SUBSIDIARY WHICH ACQUIRED THE
       SECURITY BEING REPORTED ON BY THE PARENT HOLDING COMPANY.

     Not applicable

ITEM 8 IDENTIFICATION AND CLASSIFICATION OF MEMBERS OF THE GROUP.

     Not applicable

ITEM 9 NOTICE OF DISSOLUTION OF GROUP.

     Not applicable

ITEM 10 CERTIFICATION.

By signing below I certify that, to the best of my knowledge and belief, the
securities referred to above were not acquired and are not held for the
purpose of or with the effect of changing or influencing the control of the
issuer of the securities and were not acquired and are not held in connection
with or as a participant in any transaction having that purpose or effect.

SIGNATURE.

After reasonable inquiry and to the best of my knowledge and belief, I certify
that the information set forth in this statement is true, complete and
correct.

November 9, 1999           INVESTORS GROUP INC.



                           By:         /s/ James Lawson
                                       -----------------
                                       James Lawson, as
                                       Attorney-in-Fact for
                                       Robert Gibson Darling,
                                       Senior Vice-President of
                                       Investors Group Inc.


<PAGE>   16


                                  Page 16 of 18

November 9, 1999           INVESTORS GROUP TRUSTCO INC.



                           By:         /s/ James Lawson
                                       -----------------
                                       James Lawson, as
                                       Attorney-in-Fact for
                                       Richard Elliott Archer,
                                       President of
                                       Investors Group Trustco Inc.

November 9, 1999           INVESTORS GROUP TRUST CO. LTD.



                           By:         /s/ James Lawson
                                       -----------------
                                       James Lawson, as
                                       Attorney-in-Fact for
                                       Robert Gibson Darling,
                                       Vice-President of
                                       Investors Group Trust Co. Ltd.

November 9, 1999           I.G. INVESTMENT MANAGEMENT, LTD.



                           By:         /s/ James Lawson
                                       -----------------
                                       James Lawson, as
                                       Attorney-in-Fact for
                                       Alexander Scott Penman,
                                       President and Chief Executive
                                       Officer of
                                       I.G. Investment Management, Ltd.

November 9, 1999           INVESTORS CANADIAN SMALL CAP FUND



                           By:         /s/ James Lawson
                                       -----------------
                                       James Lawson,
                                       as Attorney-in-Fact for
                                       Robert Gibson Darling,
                                       Vice-President of
                                       Investors Group Trust Co. Ltd.,
                                       as Trustee for
                                       Investors Canadian Small Cap Fund


<PAGE>   17


                                  Page 17 of 18

November 9, 1999           INVESTORS CANADIAN SMALL CAP FUND II



                           By:         /s/ James Lawson
                                       -----------------
                                       James Lawson,
                                       as Attorney-in-Fact for
                                       Robert Gibson Darling,
                                       Vice-President of
                                       Investors Group Trust Co. Ltd.,
                                       as Trustee for
                                       Investors Canadian Small Cap Fund II

November 9, 1999           INVESTORS SUMMA FUND



                           By:         /s/ James Lawson
                                       -----------------
                                       James Lawson,
                                       as Attorney-in-Fact for
                                       Robert Gibson Darling,
                                       Vice-President of
                                       Investors Group Trust Co. Ltd.,
                                       as Trustee for
                                       Investors Summa Fund

November 9, 1999           POOLED EQUITY FUND



                           By:         /s/ James Lawson
                                       -----------------
                                       James Lawson,
                                       as Attorney-in-Fact for
                                       Robert Gibson Darling,
                                       Vice-President of
                                       Investors Group Trust Co. Ltd.,
                                       as Trustee for
                                       Pooled Equity Fund

November 9, 1999           INVESTORS GLOBAL SCIENCE & TECHNOLOGY FUND



                           By:         /s/ James Lawson
                                       -----------------
                                       James Lawson,
                                       as Attorney-in-Fact for
                                       Robert Gibson Darling,
                                       Vice-President of
                                       Investors Group Trust Co. Ltd.,
                                       as Trustee for
                                       Investors Global Science & Technology
                                       Fund

<PAGE>   18


                                  Page 18 of 18

November 9, 1999           INVESTORS CANADIAN BALANCED FUND



                           By:         /s/ James Lawson
                                       -----------------
                                       James Lawson,
                                       as Attorney-in-Fact for
                                       Robert Gibson Darling,
                                       Vice-President of
                                       Investors Group Trust Co. Ltd.,
                                       as Trustee for
                                       Investors Canadian Balanced Fund

November 9, 1999           INVESTORS MUTUAL OF CANADA



                           By:         /s/ James Lawson
                                       -----------------
                                       James Lawson,
                                       as Attorney-in-Fact for
                                       Robert Gibson Darling,
                                       Vice-President of
                                       Investors Group Trust Co. Ltd.,
                                       as Trustee for
                                       Investors Mutual of Canada



<PAGE>   19


Exhibit A

                             Joint Filing Agreement
                             ----------------------

       In accordance with Rule 13d-1(k)(1) under the Securities Exchange Act
of 1934, as amended, the undersigned hereby agree to the joint filing with all
other Reporting Persons (as such term is defined in the Schedule 13G referred
to below) on behalf of each of them of a statement on Schedule 13G (including
amendments thereto) with respect to the Common Stock, $.01 par value, of
Optical Coating Laboratory, Inc., and that this Agreement be included as an
Exhibit to such joint filing. This Agreement may be executed in any number of
counterparts all of which taken together shall constitute one and the same
instrument.

       IN WITNESS WHEREOF, the undersigned hereby execute this Agreement this
23rd day of December, 1998.


                        INVESTORS GROUP INC.



                        By:         /s/ Edwin R. Buss
                                    -----------------
                                    Edwin R. Buss, as
                                    Attorney-in-Fact for
                                    Hugh Sanford Riley,
                                    President and Chief
                                    Executive Officer of
                                    Investors Group Inc.

                        INVESTORS GROUP TRUSTCO INC.



                        By:         /s/ Edwin R. Buss
                                    -----------------
                                    Edwin R. Buss, as
                                    Attorney-in-Fact for
                                    Richard Elliott Archer,
                                    President of
                                    Investors Group Trustco Inc.

                        INVESTORS GROUP TRUST CO. LTD.



                        By:         /s/ Edwin R. Buss
                                    -----------------
                                    Edwin R. Buss, as
                                    Attorney-in-Fact for
                                    Wayne Stanley Walker,
                                    President and Chief Executive Officer
                                    Investors Group Trust Co. Ltd.


<PAGE>   20


                        I.G. INVESTMENT MANAGEMENT, LTD.



                        By:         /s/ Edwin R. Buss
                                    -----------------
                                    Edwin R. Buss, as
                                    Attorney-in-Fact for
                                    Richard Elliott Archer,
                                    President of
                                    I.G. Investment Management, Ltd.

                        INVESTORS CANADIAN SMALL CAP FUND



                        By:         /s/ Edwin R. Buss
                                    -----------------
                                    Edwin R. Buss,
                                    as Attorney-in-Fact for
                                    Wayne Stanley Walker,
                                    President and Chief Executive Officer of
                                    Investors Group Trust Co. Ltd.,
                                    as Trustee for
                                    Investors Canadian Small Cap Fund

                        INVESTORS CANADIAN SMALL CAP FUND II



                        By:         /s/ Edwin R. Buss
                                    -----------------
                                    Edwin R. Buss,
                                    as Attorney-in-Fact for
                                    Wayne Stanley Walker,
                                    President and Chief Executive Officer of
                                    Investors Group Trust Co. Ltd.,
                                    as Trustee for
                                    Investors Canadian Small Cap Fund II

                        INVESTORS SUMMA FUND



                        By:         /s/ Edwin R. Buss
                                    -----------------
                                    Edwin R. Buss,
                                    as Attorney-in-Fact for
                                    Wayne Stanley Walker,
                                    President and Chief Executive Officer of
                                    Investors Group Trust Co. Ltd.,
                                    as Trustee for
                                    Investors Summa Fund


<PAGE>   21


                        POOLED EQUITY FUND



                        By:         /s/ Edwin R. Buss
                                    -----------------
                                    Edwin R. Buss,
                                    as Attorney-in-Fact for
                                    Wayne Stanley Walker,
                                    President and Chief Executive Officer of
                                    Investors Group Trust Co. Ltd.,
                                    as Trustee for
                                    Pooled Equity Fund


<PAGE>   22


Exhibit B

                                Power of Attorney
                                -----------------

       KNOW ALL MEN BY THESE PRESENTS, THAT I, Hugh Sanford Riley, President
and Chief Executive Officer of Investors Group Inc., have made, constituted
and appointed, and by these presents do make, constitute and appoint, Edwin R.
Buss, James Fossen or David M. R. Cheop, and any one of them acting
separately, my true and lawful attorneys for me and in my name, place and
stead solely for the purpose of executing, filing or delivering on behalf of
Investors Group Inc. any and all statements on Schedule 13G under the
Securities Exchange Act of 1934, and any amendments thereof and any filing
agreement relating thereto, giving and granting unto said attorneys full power
and authority to do and perform all and every such act as fully, to all
intents and purposes, as I might or could do if personally present, with full
power of substitution and revocation, hereby ratifying and confirming all that
said attorneys or their substitute shall lawfully do or cause to be done by
virtue hereof. This instrument may not be changed orally.

       IN WITNESS WHEREOF, I have hereunto set my hand and seal this 23rd day
of December, 1998.


                                              /s/         Hugh Sanford Riley
                                              ------------------------------
                                                          Hugh Sanford Riley


       BE IT KNOWN, that on this 23rd day of December, 1998, before me Martin
Gutnik, a Notary Public in and for the Province of Manitoba, duly commissioned
and sworn, personally came and appeared Hugh Sanford Riley, to me known, and
known to me to be the same person described in and who executed the Power of
Attorney, and acknowledged the within Power of Attorney to be his act and
deed.

       IN TESTIMONY WHEREOF, I have hereunto subscribed my name and affixed my
seal of office, the day and year last above written.


                                              /s/         Martin Gutnik
                                              --------------------------
                                                          Notary Public


<PAGE>   23


Exhibit C

                                Power of Attorney
                                -----------------

       KNOW ALL MEN BY THESE PRESENTS, THAT I, Richard Elliott Archer,
President of Investors Group Trustco Inc., have made, constituted and
appointed, and by these presents do make, constitute and appoint, Edwin R.
Buss, James Fossen or David M. R. Cheop, and any one of them acting
separately, my true and lawful attorneys for me and in my name, place and
stead solely for the purpose of executing, filing or delivering on behalf of
Investors Group Trustco Inc. any and all statements on Schedule 13G under the
Securities Exchange Act of 1934, and any amendments thereof and any filing
agreement relating thereto, giving and granting unto said attorneys full power
and authority to do and perform all and every such act as fully, to all
intents and purposes, as I might or could do if personally present, with full
power of substitution and revocation, hereby ratifying and confirming all that
said attorneys or their substitute shall lawfully do or cause to be done by
virtue hereof. This instrument may not be changed orally.

       IN WITNESS WHEREOF, I have hereunto set my hand and seal this 23rd day
of December, 1998.


                                            /s/      Richard Elliott Archer
                                            -------------------------------
                                                     Richard Elliott Archer


       BE IT KNOWN, that on this 23rd day of December, 1998, before me Martin
Gutnik, a Notary Public in and for the Province of Manitoba, duly commissioned
and sworn, personally came and appeared Richard Elliott Archer, to me known,
and known to me to be the same person described in and who executed the Power
of Attorney, and acknowledged the within Power of Attorney to be his act and
deed.

       IN TESTIMONY WHEREOF, I have hereunto subscribed my name and affixed my
seal of office, the day and year last above written.


                                            /s/      Martin Gutnik
                                            ----------------------
                                                     Notary Public


<PAGE>   24


Exhibit D

                                Power of Attorney
                                -----------------

       KNOW ALL MEN BY THESE PRESENTS, THAT I, Wayne Stanley Walker, President
and Chief Executive Officer of Investors Group Trust Co. Ltd., have made,
constituted and appointed, and by these presents do make, constitute and
appoint, Edwin R. Buss, James Fossen or David M. R. Cheop, and any one of them
acting separately, my true and lawful attorneys for me and in my name, place
and stead solely for the purpose of executing, filing or delivering on behalf
of Investors Group Trust Co. Ltd. any and all statements on Schedule 13G under
the Securities Exchange Act of 1934, and any amendments thereof and any filing
agreement relating thereto, giving and granting unto said attorneys full power
and authority to do and perform all and every such act as fully, to all
intents and purposes, as I might or could do if personally present, with full
power of substitution and revocation, hereby ratifying and confirming all that
said attorneys or their substitute shall lawfully do or cause to be done by
virtue hereof. This instrument may not be changed orally.

       IN WITNESS WHEREOF, I have hereunto set my hand and seal this 23rd day
of December, 1998.


                                              /s/       Wayne Stanley Walker
                                              ------------------------------
                                                        Wayne Stanley Walker


       BE IT KNOWN, that on this 23rd day of December, 1998, before me Martin
Gutnik, a Notary Public in and for the Province of Manitoba, duly commissioned
and sworn, personally came and appeared Wayne Stanley Walker, to me known, and
known to me to be the same person described in and who executed the Power of
Attorney, and acknowledged the within Power of Attorney to be his act and
deed.

       IN TESTIMONY WHEREOF, I have hereunto subscribed my name and affixed my
seal of office, the day and year last above written.

                                              /s/       Martin Gutnik
                                              -----------------------
                                                        Notary Public


<PAGE>   25


Exhibit E

                                Power of Attorney
                                -----------------

       KNOW ALL MEN BY THESE PRESENTS, THAT I, Richard Elliott Archer,
President of I.G. Investment Management, Ltd., have made, constituted and
appointed, and by these presents do make, constitute and appoint, Edwin R.
Buss, James Fossen or David M. R. Cheop, and any one of them acting
separately, my true and lawful attorneys for me and in my name, place and
stead solely for the purpose of executing, filing or delivering on behalf of
I.G. Investment Management, Ltd. any and all statements on Schedule 13G under
the Securities Exchange Act of 1934, and any amendments thereof and any filing
agreement relating thereto, giving and granting unto said attorneys full power
and authority to do and perform all and every such act as fully, to all
intents and purposes, as I might or could do if personally present, with full
power of substitution and revocation, hereby ratifying and confirming all that
said attorneys or their substitute shall lawfully do or cause to be done by
virtue hereof. This instrument may not be changed orally.

       IN WITNESS WHEREOF, I have hereunto set my hand and seal this 23rd day
of December, 1998.


                                              /s/       Richard Elliott Archer
                                              --------------------------------
                                                        Richard Elliott Archer


       BE IT KNOWN, that on this 23rd day of December, 1998, before me Martin
Gutnik, a Notary Public in and for the Province of Manitoba, duly commissioned
and sworn, personally came and appeared Richard Elliot Archer, to me known,
and known to me to be the same person described in and who executed the Power
of Attorney, and acknowledged the within Power of Attorney to be his act and
deed.

       IN TESTIMONY WHEREOF, I have hereunto subscribed my name and affixed my
seal of office, the day and year last above written.


                                              /s/       Martin Gutnik
                                              -----------------------
                                                        Notary Public


<PAGE>   26


Exhibit F

                                Power of Attorney
                                -----------------

       KNOW ALL MEN BY THESE PRESENTS, THAT I, Wayne Stanley Walker, President
and Chief Executive Officer of Investors Group Trust Co. Ltd., as Trustee for
Investors Canadian Small Cap Fund, have made, constituted and appointed, and
by these presents do make, constitute and appoint, Edwin R. Buss, James Fossen
or David M. R. Cheop, and any one of them acting separately, my true and
lawful attorneys for me and in my name, place and stead solely for the purpose
of executing, filing or delivering on behalf of Investors Canadian Small Cap
Fund any and all statements on Schedule 13G under the Securities Exchange Act
of 1934, and any amendments thereof and any filing agreement relating thereto,
giving and granting unto said attorneys full power and authority to do and
perform all and every such act as fully, to all intents and purposes, as I
might or could do if personally present, with full power of substitution and
revocation, hereby ratifying and confirming all that said attorneys or their
substitute shall lawfully do or cause to be done by virtue hereof. This
instrument may not be changed orally.

       IN WITNESS WHEREOF, I have hereunto set my hand and seal this 23rd day
of December, 1998.


                                                /s/      Wayne Stanley Walker
                                                -----------------------------
                                                         Wayne Stanley Walker


       BE IT KNOWN, that on this 23rd day of December, 1998, before me Martin
Gutnik, a Notary Public in and for the Province of Manitoba, duly commissioned
and sworn, personally came and appeared Wayne Stanley Walker, to me known, and
known to me to be the same person described in and who executed the Power of
Attorney, and acknowledged the within Power of Attorney to be his act and
deed.

       IN TESTIMONY WHEREOF, I have hereunto subscribed my name and affixed my
seal of office, the day and year last above written.

                                                /s/      Martin Gutnik
                                                ----------------------
                                                         Notary Public


<PAGE>   27


Exhibit G

                                Power of Attorney
                                -----------------

       KNOW ALL MEN BY THESE PRESENTS, THAT I, Wayne Stanley Walker, President
and Chief Executive Officer of Investors Group Trust Co. Ltd., as Trustee for
Investors Canadian Small Cap Fund II, have made, constituted and appointed,
and by these presents do make, constitute and appoint, Edwin R. Buss, James
Fossen or David M. R. Cheop, and any one of them acting separately, my true
and lawful attorneys for me and in my name, place and stead solely for the
purpose of executing, filing or delivering on behalf of Investors Canadian
Small Cap Fund II any and all statements on Schedule 13G under the Securities
Exchange Act of 1934, and any amendments thereof and any filing agreement
relating thereto, giving and granting unto said attorneys full power and
authority to do and perform all and every such act as fully, to all intents
and purposes, as I might or could do if personally present, with full power of
substitution and revocation, hereby ratifying and confirming all that said
attorneys or their substitute shall lawfully do or cause to be done by virtue
hereof. This instrument may not be changed orally.

       IN WITNESS WHEREOF, I have hereunto set my hand and seal this 23rd day
of December, 1998.


                                                /s/      Wayne Stanley Walker
                                                -----------------------------
                                                         Wayne Stanley Walker


       BE IT KNOWN, that on this 23rd day of December, 1998, before me Martin
Gutnik, a Notary Public in and for the Province of Manitoba, duly commissioned
and sworn, personally came and appeared Wayne Stanley Walker, to me known, and
known to me to be the same person described in and who executed the Power of
Attorney, and acknowledged the within Power of Attorney to be his act and
deed.

       IN TESTIMONY WHEREOF, I have hereunto subscribed my name and affixed my
seal of office, the day and year last above written.

                                                   /s/      Martin Gutnik
                                                   ----------------------
                                                            Notary Public


<PAGE>   28


Exhibit H

                                Power of Attorney
                                -----------------

       KNOW ALL MEN BY THESE PRESENTS, THAT I, Wayne Stanley Walker, President
and Chief Executive Officer of Investors Group Trust Co. Ltd., as Trustee for
Investors Summa Fund, have made, constituted and appointed, and by these
presents do make, constitute and appoint, Edwin R. Buss, James Fossen or David
M. R. Cheop, and any one of them acting separately, my true and lawful
attorneys for me and in my name, place and stead solely for the purpose of
executing, filing or delivering on behalf of Investors Summa Fund any and all
statements on Schedule 13G under the Securities Exchange Act of 1934, and any
amendments thereof and any filing agreement relating thereto, giving and
granting unto said attorneys full power and authority to do and perform all
and every such act as fully, to all intents and purposes, as I might or could
do if personally present, with full power of substitution and revocation,
hereby ratifying and confirming all that said attorneys or their substitute
shall lawfully do or cause to be done by virtue hereof. This instrument may
not be changed orally.

       IN WITNESS WHEREOF, I have hereunto set my hand and seal this 23rd day
of December, 1998.


                                       /s/         Wayne Stanley Walker
                                       --------------------------------
                                                   Wayne Stanley Walker


       BE IT KNOWN, that on this 23rd day of December, 1998, before me Martin
Gutnik, a Notary Public in and for the Province of Manitoba, duly commissioned
and sworn, personally came and appeared Wayne Stanley Walker, to me known, and
known to me to be the same person described in and who executed the Power of
Attorney, and acknowledged the within Power of Attorney to be his act and
deed.

       IN TESTIMONY WHEREOF, I have hereunto subscribed my name and affixed my
seal of office, the day and year last above written.

                                       /s/         Martin Gutnik
                                       -------------------------
                                                   Notary Public



<PAGE>   29


Exhibit I

                                Power of Attorney
                                -----------------

       KNOW ALL MEN BY THESE PRESENTS, THAT I, Wayne Stanley Walker, President
and Chief Executive Officer of Investors Group Trust Co. Ltd., as Trustee for
Pooled Equity Fund, have made, constituted and appointed, and by these
presents do make, constitute and appoint, Edwin R. Buss, James Fossen or David
M. R. Cheop, and any one of them acting separately, my true and lawful
attorneys for me and in my name, place and stead solely for the purpose of
executing, filing or delivering on behalf of Pooled Equity Fund any and all
statements on Schedule 13G under the Securities Exchange Act of 1934, and any
amendments thereof and any filing agreement relating thereto, giving and
granting unto said attorneys full power and authority to do and perform all
and every such act as fully, to all intents and purposes, as I might or could
do if personally present, with full power of substitution and revocation,
hereby ratifying and confirming all that said attorneys or their substitute
shall lawfully do or cause to be done by virtue hereof. This instrument may
not be changed orally.

       IN WITNESS WHEREOF, I have hereunto set my hand and seal this 23rd day
of December, 1998.


                                            /s/    Wayne Stanley Walker
                                            ---------------------------
                                                   Wayne Stanley Walker


       BE IT KNOWN, that on this 23rd day of December, 1998, before me Martin
Gutnik, a Notary Public in and for the Province of Manitoba, duly commissioned
and sworn, personally came and appeared Wayne Stanley Walker, to me known, and
known to me to be the same person described in and who executed the Power of
Attorney, and acknowledged the within Power of Attorney to be his act and
deed.

       IN TESTIMONY WHEREOF, I have hereunto subscribed my name and affixed my
seal of office, the day and year last above written.


                                            /s/    Martin Gutnik
                                            --------------------
                                                   Notary Public


<PAGE>   30


Exhibit J

                                Power of Attorney
                                -----------------

       KNOW ALL MEN BY THESE PRESENTS, THAT I, Alexander Scott Penman,
President of I.G. Investment Management, Ltd., have made, constituted and
appointed, and by these presents do make, constitute and appoint, Edwin R.
Buss, James Lawson or David M. R. Cheop, and any one of them acting
separately, my true and lawful attorneys for me and in my name, place and
stead solely for the purpose of executing, filing or delivering on behalf of
I.G. Investment Management, Ltd. any and all statements on Schedule 13G under
the Securities Exchange Act of 1934, and any amendments thereof and any filing
agreement relating thereto, giving and granting unto said attorneys full power
and authority to do and perform all and every such act as fully, to all
intents and purposes, as I might or could do if personally present, with full
power of substitution and revocation, hereby ratifying and confirming all that
said attorneys or their substitute shall lawfully do or cause to be done by
virtue hereof. This instrument may not be changed orally.

       IN WITNESS WHEREOF, I have hereunto set my hand and seal this 19th day
of March, 1999.


                                            /s/     Alexander Scott Penman
                                            ------------------------------
                                                    Alexander Scott Penman


       BE IT KNOWN, that on this 19th day of March, 1999, before me Douglas E.
Jones, a Notary Public in and for the Province of Manitoba, duly commissioned
and sworn, personally came and appeared Alexander Scott Penman, to me known,
and known to me to be the same person described in and who executed the Power
of Attorney, and acknowledged the within Power of Attorney to be his act and
deed.

       IN TESTIMONY WHEREOF, I have hereunto subscribed my name and affixed my
seal of office, the day and year last above written.


                                            /s/     Douglas E. Jones
                                            -----------------------
                                                    Notary Public


<PAGE>   31


Exhibit K

                             Joint Filing Agreement
                             ----------------------

       In accordance with Rule 13d-1(k)(1) under the Securities Exchange Act
of 1934, as amended, the undersigned hereby agree to the joint filing with all
other Reporting Persons (as such term is defined in the Schedule 13G referred
to below) on behalf of each of them of a statement on Schedule 13G (including
amendments thereto) with respect to the Common Stock, $.01 par value, of
Optical Coating Laboratory, Inc., and that this Agreement be included as an
Exhibit to such joint filing. This Agreement may be executed in any number of
counterparts all of which taken together shall constitute one and the same
instrument.

       IN WITNESS WHEREOF, the undersigned hereby execute this Agreement this
27th day of October, 1999.


                        INVESTORS GROUP INC.



                        By:         /s/ James Lawson
                                    -----------------
                                    James Lawson, as
                                    Attorney-in-Fact for
                                    Robert Gibson Darling,
                                    Senior Vice-President of
                                    Investors Group Inc.

                        INVESTORS GROUP TRUSTCO INC.



                        By:         /s/ James Lawson
                                    -----------------
                                    James Lawson, as
                                    Attorney-in-Fact for
                                    Richard Elliott Archer,
                                    President of
                                    Investors Group Trustco Inc.

                        INVESTORS GROUP TRUST CO. LTD.



                        By:         /s/ James Lawson
                                    -----------------
                                    James Lawson, as
                                    Attorney-in-Fact for
                                    Robert Gibson Darling,
                                    Vice-President of
                                    Investors Group Trust Co. Ltd.


<PAGE>   32


                        I.G. INVESTMENT MANAGEMENT, LTD.



                        By:         /s/ James Lawson
                                    -----------------
                                    James Lawson, as
                                    Attorney-in-Fact for
                                    Alexander Scott Penman,
                                    President of
                                    I.G. Investment Management, Ltd.

                        INVESTORS CANADIAN SMALL CAP FUND



                        By:         /s/ James Lawson
                                    -----------------
                                    James Lawson,
                                    as Attorney-in-Fact for
                                    Robert Gibson Darling,
                                    Vice-President of
                                    Investors Group Trust Co. Ltd.,
                                    as Trustee for
                                    Investors Canadian Small Cap Fund

                        INVESTORS CANADIAN SMALL CAP FUND II



                        By:         /s/ James Lawson
                                    -----------------
                                    James Lawson,
                                    as Attorney-in-Fact for
                                    Robert Gibson Darling,
                                    Vice-President of
                                    Investors Group Trust Co. Ltd.,
                                    as Trustee for
                                    Investors Canadian Small Cap Fund II

                        INVESTORS SUMMA FUND



                        By:         /s/ James Lawson
                                    -----------------
                                    James Lawson,
                                    as Attorney-in-Fact for
                                    Robert Gibson Darling,
                                    Vice-President of
                                    Investors Group Trust Co. Ltd.,
                                    as Trustee for
                                    Investors Summa Fund


<PAGE>   33


                        POOLED EQUITY FUND



                        By:         /s/ James Lawson
                                    -----------------
                                    James Lawson,
                                    as Attorney-in-Fact for
                                    Robert Gibson Darling,
                                    Vice-President of
                                    Investors Group Trust Co. Ltd.,
                                    as Trustee for
                                    Pooled Equity Fund

                        INVESTORS GLOBAL SCIENCE & TECHNOLOGY FUND



                        By:         /s/ James Lawson
                                    -----------------
                                    James Lawson,
                                    as Attorney-in-Fact for
                                    Robert Gibson Darling,
                                    Vice-President of
                                    Investors Group Trust Co. Ltd.,
                                    as Trustee for
                                    Investors Global Science & Technology Fund

                        INVESTORS CANADIAN BALANCED FUND



                        By:         /s/ James Lawson
                                    -----------------
                                    James Lawson,
                                    as Attorney-in-Fact for
                                    Robert Gibson Darling,
                                    Vice-President of
                                    Investors Group Trust Co. Ltd.,
                                    as Trustee for
                                    Investors Canadian Balanced Fund


<PAGE>   34


Exhibit L

                               Power of Attorney
                               -----------------

            KNOW ALL MEN BY THESE PRESENTS, THAT I, Robert Gibson Darling,
Vice-President of Investors Group Trust Co. Ltd., have made, constituted and
appointed, and by these presents do make, constitute and appoint, Edwin R.
Buss, James Lawson or David M. R. Cheop, and any one of them acting
separately, my true and lawful attorneys for me and in my name, place and
stead solely for the purpose of executing, filing or delivering on behalf of
Investors Group Trust Co. Ltd. any and all statements on Schedule 13G under
the Securities Exchange Act of 1934, and any amendments thereof and any filing
agreement relating thereto, giving and granting unto said attorneys full power
and authority to do and perform all and every such act as fully, to all
intents and purposes, as I might or could do if personally present, with full
power of substitution and revocation, hereby ratifying and confirming all that
said attorneys or their substitute shall lawfully do or cause to be done by
virtue hereof.  This instrument may not be changed orally.

            IN WITNESS WHEREOF, I have hereunto set my hand and seal this 14th
day of May, 1999.

                                          /s/   Robert Gibson Darling
                                          ---------------------------
                                                Robert Gibson Darling

            BE IT KNOWN, that on this 14th day of May, 1999, before me Martin
Gutnik, a Notary Public in and for the Province of Manitoba, duly commissioned
and sworn, personally came and appeared Robert Gibson Darling, to me known,
and known to me to be the same person described in and who executed the Power
of Attorney, and acknowledged the within Power of Attorney to be his act and
deed.

            IN TESTIMONY WHEREOF, I have hereunto subscribed my name and
affixed my seal of office, the day and year last above written.

                                          /s/   Martin Gutnik
                                          -------------------
                                                Notary Public


<PAGE>   35


Exhibit M

                               Power of Attorney
                               -----------------

            KNOW ALL MEN BY THESE PRESENTS, THAT I, Robert Gibson Darling,
Vice-President of Investors Group Trust Co. Ltd., as Trustee for Investors
Canadian Small Cap Fund, have made, constituted and appointed, and by these
presents do make, constitute and appoint, Edwin R. Buss, James Lawson or David
M. R. Cheop, and any one of them acting separately, my true and lawful
attorneys for me and in my name, place and stead solely for the purpose of
executing, filing or delivering on behalf of Investors Canadian Small Cap Fund
any and all statements on Schedule 13G under the Securities Exchange Act of
1934, and any amendments thereof and any filing agreement relating thereto,
giving and granting unto said attorneys full power and authority to do and
perform all and every such act as fully, to all intents and purposes, as I
might or could do if personally present, with full power of substitution and
revocation, hereby ratifying and confirming all that said attorneys or their
substitute shall lawfully do or cause to be done by virtue hereof.  This
instrument may not be changed orally.

            IN WITNESS WHEREOF, I have hereunto set my hand and seal this 14th
day of May, 1999.

                                          /s/   Robert Gibson Darling
                                          ---------------------------
                                                Robert Gibson Darling

            BE IT KNOWN, that on this 14th day of May, 1999, before me Martin
Gutnik, a Notary Public in and for the Province of Manitoba, duly commissioned
and sworn, personally came and appeared Robert Gibson Darling, to me known,
and known to me to be the same person described in and who executed the Power
of Attorney, and acknowledged the within Power of Attorney to be his act and
deed.

            IN TESTIMONY WHEREOF, I have hereunto subscribed my name and
affixed my seal of office, the day and year last above written.

                                          /s/   Martin Gutnik
                                          -------------------
                                                Notary Public


<PAGE>   36


Exhibit N

                               Power of Attorney
                               -----------------

              KNOW ALL MEN BY THESE PRESENTS, THAT I, Robert Gibson Darling,
Vice-President of Investors Group Trust Co. Ltd., as Trustee for Investors
Canadian Small Cap Fund II, have made, constituted and appointed, and by these
presents do make, constitute and appoint, Edwin R. Buss, James Lawson or David
M. R. Cheop, and any one of them acting separately, my true and lawful
attorneys for me and in my name, place and stead solely for the purpose of
executing, filing or delivering on behalf of Investors Canadian Small Cap Fund
II any and all statements on Schedule 13G under the Securities Exchange Act of
1934, and any amendments thereof and any filing agreement relating thereto,
giving and granting unto said attorneys full power and authority to do and
perform all and every such act as fully, to all intents and purposes, as I
might or could do if personally present, with full power of substitution and
revocation, hereby ratifying and confirming all that said attorneys or their
substitute shall lawfully do or cause to be done by virtue hereof.  This
instrument may not be changed orally.

              IN WITNESS WHEREOF, I have hereunto set my hand and seal this
14th day of May, 1999.

                                          /s/   Robert Gibson Darling
                                          ---------------------------
                                                Robert Gibson Darling

              BE IT KNOWN, that on this 14th day of May, 1999, before me
Martin Gutnik, a Notary Public in and for the Province of Manitoba, duly
commissioned and sworn, personally came and appeared Robert Gibson Darling, to
me known, and known to me to be the same person described in and who executed
the Power of Attorney, and acknowledged the within Power of Attorney to be his
act and deed.

              IN TESTIMONY WHEREOF, I have hereunto subscribed my name and
affixed my seal of office, the day and year last above written.

                                          /s/   Martin Gutnik
                                          -------------------
                                                Notary Public


<PAGE>   37


Exhibit O

                               Power of Attorney
                               -----------------

            KNOW ALL MEN BY THESE PRESENTS, THAT I, Robert Gibson Darling,
Vice-President of Investors Group Trust Co. Ltd., as Trustee for Investors
Summa Fund, have made, constituted and appointed, and by these presents do
make, constitute and appoint, Edwin R. Buss, James Lawson or David M. R.
Cheop, and any one of them acting separately, my true and lawful attorneys for
me and in my name, place and stead solely for the purpose of executing, filing
or delivering on behalf of Investors Summa Fund any and all statements on
Schedule 13G under the Securities Exchange Act of 1934, and any amendments
thereof and any filing agreement relating thereto, giving and granting unto
said attorneys full power and authority to do and perform all and every such
act as fully, to all intents and purposes, as I might or could do if
personally present, with full power of substitution and revocation, hereby
ratifying and confirming all that said attorneys or their substitute shall
lawfully do or cause to be done by virtue hereof.  This instrument may not be
changed orally.

            IN WITNESS WHEREOF, I have hereunto set my hand and seal this 14th
day of May, 1999.

                                          /s/   Robert Gibson Darling
                                          ---------------------------
                                                Robert Gibson Darling

            BE IT KNOWN, that on this 14th day of May, 1999, before me Martin
Gutnik, a Notary Public in and for the Province of Manitoba, duly commissioned
and sworn, personally came and appeared Robert Gibson Darling, to me known,
and known to me to be the same person described in and who executed the Power
of Attorney, and acknowledged the within Power of Attorney to be his act and
deed.

            IN TESTIMONY WHEREOF, I have hereunto subscribed my name and
affixed my seal of office, the day and year last above written.

                                          /s/   Martin Gutnik
                                          -------------------
                                                Notary Public


<PAGE>   38


Exhibit P

                               Power of Attorney
                               -----------------

            KNOW ALL MEN BY THESE PRESENTS, THAT I, Robert Gibson Darling,
Vice-President of Investors Group Trust Co. Ltd., as Trustee for Investors
Canadian Global Science & Technology Fund, have made, constituted and
appointed, and by these presents do make, constitute and appoint, Edwin R.
Buss, James Lawson or David M. R. Cheop, and any one of them acting
separately, my true and lawful attorneys for me and in my name, place and
stead solely for the purpose of executing, filing or delivering on behalf of
Investors Global Science & Technology Fund any and all statements on Schedule
13G under the Securities Exchange Act of 1934, and any amendments thereof and
any filing agreement relating thereto, giving and granting unto said attorneys
full power and authority to do and perform all and every such act as fully, to
all intents and purposes, as I might or could do if personally present, with
full power of substitution and revocation, hereby ratifying and confirming all
that said attorneys or their substitute shall lawfully do or cause to be done
by virtue hereof.  This instrument may not be changed orally.

            IN WITNESS WHEREOF, I have hereunto set my hand and seal this 14th
day of May, 1999.

                                          /s/   Robert Gibson Darling
                                          ---------------------------
                                                Robert Gibson Darling

            BE IT KNOWN, that on this 14th day of May, 1999, before me Martin
Gutnik, a Notary Public in and for the Province of Manitoba, duly commissioned
and sworn, personally came and appeared Robert Gibson Darling, to me known,
and known to me to be the same person described in and who executed the Power
of Attorney, and acknowledged the within Power of Attorney to be his act and
deed.

            IN TESTIMONY WHEREOF, I have hereunto subscribed my name and
affixed my seal of office, the day and year last above written.

                                          /s/   Martin Gutnik
                                          -------------------
                                                Notary Public


<PAGE>   39


Exhibit Q

                               Power of Attorney
                               -----------------

              KNOW ALL MEN BY THESE PRESENTS, THAT I, Robert Gibson Darling,
Vice-President of Investors Group Trust Co. Ltd., as Trustee for Pooled Equity
Fund, have made, constituted and appointed, and by these presents do make,
constitute and appoint, Edwin R. Buss, James Lawson or David M. R. Cheop, and
any one of them acting separately, my true and lawful attorneys for me and in
my name, place and stead solely for the purpose of executing, filing or
delivering on behalf of Pooled Equity Fund any and all statements on Schedule
13G under the Securities Exchange Act of 1934, and any amendments thereof and
any filing agreement relating thereto, giving and granting unto said attorneys
full power and authority to do and perform all and every such act as fully, to
all intents and purposes, as I might or could do if personally present, with
full power of substitution and revocation, hereby ratifying and confirming all
that said attorneys or their substitute shall lawfully do or cause to be done
by virtue hereof.  This instrument may not be changed orally.

              IN WITNESS WHEREOF, I have hereunto set my hand and seal this
14th day of May, 1999.

                                          /s/   Robert Gibson Darling
                                          ---------------------------
                                                Robert Gibson Darling

              BE IT KNOWN, that on this 14th day of May, 1999, before me
Martin Gutnik, a Notary Public in and for the Province of Manitoba, duly
commissioned and sworn, personally came and appeared Robert Gibson Darling, to
me known, and known to me to be the same person described in and who executed
the Power of Attorney, and acknowledged the within Power of Attorney to be his
act and deed.

              IN TESTIMONY WHEREOF, I have hereunto subscribed my name and
affixed my seal of office, the day and year last above written.

                                          /s/   Martin Gutnik
                                          -------------------
                                                Notary Public


<PAGE>   40


Exhibit R

                               Power of Attorney
                               -----------------

              KNOW ALL MEN BY THESE PRESENTS, THAT I, Robert Gibson Darling,
Vice-President of Investors Group Trust Co. Ltd., as Trustee for Investors
Canadian Balanced Fund, have made, constituted and appointed, and by these
presents do make, constitute and appoint, Edwin R. Buss, James Lawson or David
M. R. Cheop, and any one of them acting separately, my true and lawful
attorneys for me and in my name, place and stead solely for the purpose of
executing, filing or delivering on behalf of Investors Canadian Balanced Fund
any and all statements on Schedule 13G under the Securities Exchange Act of
1934, and any amendments thereof and any filing agreement relating thereto,
giving and granting unto said attorneys full power and authority to do and
perform all and every such act as fully, to all intents and purposes, as I
might or could do if personally present, with full power of substitution and
revocation, hereby ratifying and confirming all that said attorneys or their
substitute shall lawfully do or cause to be done by virtue hereof.  This
instrument may not be changed orally.

              IN WITNESS WHEREOF, I have hereunto set my hand and seal this
14th day of May, 1999.

                                          /s/   Robert Gibson Darling
                                          ---------------------------
                                                Robert Gibson Darling

              BE IT KNOWN, that on this 14th day of May, 1999, before me
Martin Gutnik, a Notary Public in and for the Province of Manitoba, duly
commissioned and sworn, personally came and appeared Robert Gibson Darling, to
me known, and known to me to be the same person described in and who executed
the Power of Attorney, and acknowledged the within Power of Attorney to be his
act and deed.

              IN TESTIMONY WHEREOF, I have hereunto subscribed my name and
affixed my seal of office, the day and year last above written.

                                          /s/   Martin Gutnik
                                          -------------------
                                                Notary Public


<PAGE>   41


Exhibit S

                               Power of Attorney
                               -----------------

            KNOW ALL MEN BY THESE PRESENTS, THAT I, Richard Elliott Archer,
President of Investors Group Trustco Inc., have made, constituted and
appointed, and by these presents do make, constitute and appoint, James
Lawson, James Fossen or David M. R. Cheop, and any one of them acting
separately, my true and lawful attorneys for me and in my name, place and
stead solely for the purpose of executing, filing or delivering on behalf of
Investors Group Trustco Inc. any and all statements on Schedule 13G under the
Securities Exchange Act of 1934, and any amendments thereof and any filing
agreement relating thereto, giving and granting unto said attorneys full power
and authority to do and perform all and every such act as fully, to all
intents and purposes, as I might or could do if personally present, with full
power of substitution and revocation, hereby ratifying and confirming all that
said attorneys or their substitute shall lawfully do or cause to be done by
virtue hereof.  This instrument may not be changed orally.

            IN WITNESS WHEREOF, I have hereunto set my hand and seal this 9th
day of August, 1999.

                                          /s/   Richard Elliott Archer
                                          ----------------------------
                                                Richard Elliott Archer

            BE IT KNOWN, that on this 9th day of August, 1999, before me
Douglas E. Jones, a Notary Public in and for the Province of Manitoba, duly
commissioned and sworn, personally came and appeared Richard Elliott Archer,
to me known, and known to me to be the same person described in and who
executed the Power of Attorney, and acknowledged the within Power of Attorney
to be his act and deed.

            IN TESTIMONY WHEREOF, I have hereunto subscribed my name and
affixed my seal of office, the day and year last above written.

                                          /s/   Douglas E. Jones
                                          ----------------------
                                                Notary Public


<PAGE>   42


Exhibit T

                               Power of Attorney
                               -----------------

            KNOW ALL MEN BY THESE PRESENTS, THAT I, Robert Gibson Darling,
Senior Vice-President of Investors Group Inc., have made, constituted and
appointed, and by these presents do make, constitute and appoint, James
Lawson, James Fossen or David M. R. Cheop, and any one of them acting
separately, my true and lawful attorneys for me and in my name, place and
stead solely for the purpose of executing, filing or delivering on behalf of
Investors Group Inc. any and all statements on Schedule 13G under the
Securities Exchange Act of 1934, and any amendments thereof and any filing
agreement relating thereto, giving and granting unto said attorneys full power
and authority to do and perform all and every such act as fully, to all
intents and purposes, as I might or could do if personally present, with full
power of substitution and revocation, hereby ratifying and confirming all that
said attorneys or their substitute shall lawfully do or cause to be done by
virtue hereof.  This instrument may not be changed orally.

            IN WITNESS WHEREOF, I have hereunto set my hand and seal this 9th
day of August, 1999.

                                          /s/   Robert Gibson Darling
                                          ---------------------------
                                                Robert Gibson Darling

            BE IT KNOWN, that on this 9th day of August, 1999, before me
Douglas E. Jones, a Notary Public in and for the Province of Manitoba, duly
commissioned and sworn, personally came and appeared Robert Gibson Darling, to
me known, and known to me to be the same person described in and who executed
the Power of Attorney, and acknowledged the within Power of Attorney to be his
act and deed.

            IN TESTIMONY WHEREOF, I have hereunto subscribed my name and
affixed my seal of office, the day and year last above written.

                                          /s/   Douglas E. Jones
                                          ----------------------
                                                Notary Public


<PAGE>   43


Exhibit U

                             Joint Filing Agreement
                             ----------------------

       In accordance with Rule 13d-1(k)(1) under the Securities Exchange Act
of 1934, as amended, the undersigned hereby agree to the joint filing with all
other Reporting Persons (as such term is defined in the Schedule 13G referred
to below) on behalf of each of them of a statement on Schedule 13G (including
amendments thereto) with respect to the Common Stock, $.01 par value, of
Optical Coating Laboratory, Inc., and that this Agreement be included as an
Exhibit to such joint filing. This Agreement may be executed in any number of
counterparts all of which taken together shall constitute one and the same
instrument.

       IN WITNESS WHEREOF, the undersigned hereby execute this Agreement this
27th day of October, 1999.


                        INVESTORS GROUP INC.



                        By:         /s/ James Lawson
                                    -----------------
                                    James Lawson, as
                                    Attorney-in-Fact for
                                    Robert Gibson Darling,
                                    Senior Vice-President of
                                    Investors Group Inc.

                        INVESTORS GROUP TRUSTCO INC.



                        By:         /s/ James Lawson
                                    -----------------
                                    James Lawson, as
                                    Attorney-in-Fact for
                                    Richard Elliott Archer,
                                    President of
                                    Investors Group Trustco Inc.

                        INVESTORS GROUP TRUST CO. LTD.



                        By:         /s/ James Lawson
                                    -----------------
                                    James Lawson, as
                                    Attorney-in-Fact for
                                    Robert Gibson Darling,
                                    Vice-President of
                                    Investors Group Trust Co. Ltd.


<PAGE>   44


                        I.G. INVESTMENT MANAGEMENT, LTD.



                        By:         /s/ James Lawson
                                    -----------------
                                    James Lawson, as
                                    Attorney-in-Fact for
                                    Alexander Scott Penman,
                                    President of
                                    I.G. Investment Management, Ltd.

                        INVESTORS CANADIAN SMALL CAP FUND



                        By:         /s/ James Lawson
                                    -----------------
                                    James Lawson,
                                    as Attorney-in-Fact for
                                    Robert Gibson Darling,
                                    Vice-President of
                                    Investors Group Trust Co. Ltd.,
                                    as Trustee for
                                    Investors Canadian Small Cap Fund

                        INVESTORS CANADIAN SMALL CAP FUND II



                        By:         /s/ James Lawson
                                    -----------------
                                    James Lawson,
                                    as Attorney-in-Fact for
                                    Robert Gibson Darling,
                                    Vice-President of
                                    Investors Group Trust Co. Ltd.,
                                    as Trustee for
                                    Investors Canadian Small Cap Fund II

                        INVESTORS SUMMA FUND



                        By:         /s/ James Lawson
                                    -----------------
                                    James Lawson,
                                    as Attorney-in-Fact for
                                    Robert Gibson Darling,
                                    Vice-President of
                                    Investors Group Trust Co. Ltd.,
                                    as Trustee for
                                    Investors Summa Fund


<PAGE>   45


                        POOLED EQUITY FUND



                        By:         /s/ James Lawson
                                    -----------------
                                    James Lawson,
                                    as Attorney-in-Fact for
                                    Robert Gibson Darling,
                                    Vice-President of
                                    Investors Group Trust Co. Ltd.,
                                    as Trustee for
                                    Pooled Equity Fund

                        INVESTORS GLOBAL SCIENCE & TECHNOLOGY FUND



                        By:         /s/ James Lawson
                                    -----------------
                                    James Lawson,
                                    as Attorney-in-Fact for
                                    Robert Gibson Darling,
                                    Vice-President of
                                    Investors Group Trust Co. Ltd.,
                                    as Trustee for
                                    Investors Global Science & Technology Fund

                        INVESTORS CANADIAN BALANCED FUND



                        By:         /s/ James Lawson
                                    -----------------
                                    James Lawson,
                                    as Attorney-in-Fact for
                                    Robert Gibson Darling,
                                    Vice-President of
                                    Investors Group Trust Co. Ltd.,
                                    as Trustee for
                                    Investors Canadian Balanced Fund

                        INVESTORS MUTUAL OF CANADA



                        By:         /s/ James Lawson
                                    -----------------
                                    James Lawson,
                                    as Attorney-in-Fact for
                                    Robert Gibson Darling,
                                    Vice-President of
                                    Investors Group Trust Co. Ltd.,
                                    as Trustee for
                                    Investors Mutual of Canada

<PAGE>   46


EXHIBIT V

                               Power of Attorney

               KNOW ALL MEN BY THESE PRESENTS, THAT I, Robert Gibson Darling,
Vice-President of Investors Group Trust Co. Ltd., as Trustee for Investors
Mutual of Canada, have made, constituted and appointed, and by these presents
do make, constitute and appoint, Edwin R. Buss, James Lawson or David M. R.
Cheop, and any one of them acting separately, my true and lawful attorneys for
me and in my name, place and stead solely for the purpose of executing, filing
or delivering on behalf of Investors Mutual of Canada any and all statements
on Schedule 13G under the Securities Exchange Act of 1934, and any amendments
thereof and any filing agreement relating thereto, giving and granting unto
said attorneys full power and authority to do and perform all and every such
act as fully, to all intents and purposes, as I might or could do if
personally present, with full power of substitution and revocation, hereby
ratifying and confirming all that said attorneys or their substitute shall
lawfully do or cause to be done by virtue hereof. This instrument may not be
changed orally.

               IN WITNESS WHEREOF, I have hereunto set my hand and seal this
14th day of May, 1999.


                                            /s/    Robert Gibson Darling
                                            ------------------------------
                                                   Robert Gibson Darling

               BE IT KNOWN, that on this 14th day of May, 1999, before me
Martin Gutnik, a Notary Public in and for the Province of Manitoba, duly
commissioned and sworn, personally came and appeared Robert Gibson Darling, to
me known, and known to me to be the same person described in and who executed
the Power of Attorney, and acknowledged the within Power of Attorney to be his
act and deed.

               IN TESTIMONY WHEREOF, I have hereunto subscribed my name and
affixed my seal of office, the day and year last above written.

                                            /s/    Martin Gutnik
                                            ------------------------------
                                                   Notary Public




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