1 EXHIBIT 10.8 [OPTICAL SYSTEMS, INC. LETTERHEAD] REVOCATION OF AGREEMENT I, Raymond Sery, the holder of put agreement for 200,000 shares of common voting stock of Optical Systems, Inc., dated 15th day of January, 1998, a copy of which is attached, do...

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                                                                    EXHIBIT 10.8

                       [OPTICAL SYSTEMS, INC. LETTERHEAD]


                            REVOCATION OF AGREEMENT


     I, Xxxxxxx Xxxx, the holder of put agreement for 200,000 shares of
common voting stock of Optical Systems, Inc., dated 15th day of January, 1998, 
a copy of which is attached, do hereby revoke that agreement.

     IN WITNESS WHEREOF, I do hereby execute this revocation of agreement in 
duplicate on this, the 15th day of September, 1998. The original of this 
revocation shall be filed in the office of Optical Systems, Inc.


                                        /s/ XXXXXXX XXXX


WITNESS

Signature  /s/ XXXX X. XXXXXXX
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Name  Xxxx X. Xxxxxxx
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Date March 25, 1999
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