EXHIBIT 5.1

                   [Letterhead of Goodwin, Procter & Hoar LLP]



                                  June 7, 2000



StockerYale, Inc.
32 Hampshire Road
Salem, New Hampshire  03079

Ladies and Gentlemen:

         This opinion is furnished in our capacity as counsel to StockerYale,
Inc., a Massachusetts corporation (the "Company"), in connection with the
registration, pursuant to the Securities Act of 1933 (the "Securities Act"), of
300,000 shares (the "Shares") of common stock, par value $0.001 per share, of
the Company, which may be issued pursuant to the StockerYale, Inc. 1996 Stock
Option and Incentive Plan (the "Plan") as amended and restated to date.

         In connection with rendering this opinion, we have examined the Amended
and Restated Articles of Organization of the Company, the Amended and Restated
Bylaws of the Company, such records of the corporate proceedings of the Company
as we deemed material, the Registration Statement on Form S-8 relating to these
Shares, the Plan, and such other certificates, receipts, records and documents
as we considered necessary for the purposes of this opinion.

         Based upon the foregoing, we are of the opinion that when the Shares
have been issued and paid for in accordance with the terms of the Plan and the
Registration Statement and upon receipt of full consideration therefor, the
Shares will be legally issued, fully paid and nonassessable.

         We are attorneys admitted to practice in the Commonwealth of
Massachusetts. We express no opinion as to any laws other than the laws of the
United States of America and the Commonwealth of Massachusetts.

         The foregoing assumes that all requisite steps will be taken to comply
with the requirements of the Securities Act and applicable requirements of state
laws regulating the offer and sale of securities.

         We hereby consent to the filing of this opinion as an exhibit to the
Registration Statement.

                                      Very truly yours,


                                      /s/ Goodwin, Procter & Hoar LLP

                                      GOODWIN, PROCTER & HOAR  LLP



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