EXHIBIT 24.1

KNOW ALL PERSONS BY THESE PRESENTS, that each person whose signature appears
below hereby constitutes and appoints Robert A. Olins as his or her true and
lawful attorney-in-fact and agent, with full power of substitution and
resubstitution, for him or her and in his or her name, place and stead, in any
and all capacities to sign the Registration Statement on Form S-3 (Registration
No. 333-122392) of SpatiaLight, Inc. filed under the Securities Act of 1933, as
amended, and any amendments (including post-effective amendments) thereto, and
to file the same, with all exhibits thereto, and other documents in connection
therewith, and every act and thing requisite or necessary to be done in and
about the premise, as fully to all intents and purposes as he or she might or
could do in person, hereby ratifying and confirming all that said
attorney-in-fact and agent, or their substitutes, may lawfully do or cause to be
done in virtue hereof.

      This Power of Attorney shall remain in full force and effect for a period
of one (1) year ending the 11th day of May 2006, unless earlier revoked by the
undersigned in a signed writing delivered to the foregoing attorney-in-fact.

      This Power of Attorney may be executed in multiple counterparts, each of
which shall be deemed an original and all of which, when taken together, shall
constitute one and the same document.

      IN WITNESS WHEREOF, the undersigned have executed this Power of Attorney
as of the 11th day of May 2005.

         Signature                                     Title
         ---------                                     -----

/s/ LAWRENCE J. MATTESON                    Chairman of the Board of Directors
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Lawrence J. Matteson

/s/ ROBERT C. MUNRO                                  Director
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Robert C. Munro

/s/ CLAUDE PIAGET                                    Director
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Claude Piaget