EXHIBIT 31.1

                                 CERTIFICATIONS

I, Robert A. Olins, certify that:

1.         I have reviewed this  quarterly  report on Form 10-Q of  SpatiaLight,
           Inc.;

2.         Based on my  knowledge,  this  report  does not  contain  any  untrue
           statement  of a  material  fact  or omit to  state  a  material  fact
           necessary to make the statements made, in light of the  circumstances
           under which such statements were made, not misleading with respect to
           the period covered by this report;

3.         Based on my knowledge, the financial statements,  and other financial
           information  included in this report,  fairly present in all material
           respects the  financial  condition,  results of  operations  and cash
           flows of the registrant as of, and for, the periods presented in this
           report;

4.         I am responsible for establishing and maintaining disclosure controls
           and  procedures  (as  defined in  Exchange  Act Rules  13a-15(e)  and
           15d-15(e) and internal  control over financial  reporting (as defined
           in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and
           have:

       (a) Designed  such  disclosure  controls and  procedures,  or caused such
           disclosure   controls  and   procedures  to  be  designed  under  our
           supervision,  to ensure  that  material  information  relating to the
           registrant, including its consolidated subsidiaries, is made known to
           me by others within those entities, particularly during the period in
           which this report is being prepared;

       (b) Designed such internal  control over financial  reporting,  or caused
           such internal  control over financial  reporting to be designed under
           my  supervision,   to  provide  reasonable  assurance  regarding  the
           reliability of financial  reporting and the  preparation of financial
           statements  for  external   purposes  in  accordance  with  generally
           accepted accounting principles;

       (c) Evaluated the effectiveness of the registrant's  disclosure  controls
           and procedures and presented in this report my conclusions  about the
           effectiveness  of the disclosure  controls and procedures,  as of the
           end of the period covered by this report based on such evaluation and

       (d) Disclosed  in this  report  any change in the  registrant's  internal
           control  over   financial   reporting   that   occurred   during  the
           registrant's most recent fiscal quarter that has materially affected,
           or is  reasonably  likely  to  materially  affect,  the  registrant's
           internal control over financial reporting; and

5.         I have  disclosed,  based on my most  recent  evaluation  of internal
           control over financial reporting to the registrant's auditors and the
           audit  committee of the  registrant's  board of directors (or persons
           performing the equivalent functions):

       (a) All significant deficiencies and material weaknesses in the design or
           operation of internal  control  over  financial  reporting  which are
           reasonably  likely to adversely  affect the  registrant's  ability to
           record, process, summarize and report financial information; and

       (b) Any fraud, whether or not material, that involves management or other
           employees who have a significant  role in the  registrant`s  internal
           control over financial reporting.

Date: July 13, 2005

/s/ROBERT A. OLINS
-----------------------
Chief Executive Officer
  and Principal Financial Officer