Novel wide-field-of-view laser retroreflector for the Space Interferometry Mission

Details Novel wide-field-of-view laser retroreflector for the Space Interferometry Mission Novel wide-field-of-view laser retroreflector for the Space Interferometry Mission

Jul 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998spie.3350...81s&link_type=abstract

Proc. SPIE Vol. 3350, p. 81-88, Astronomical Interferometry, Robert D. Reasenberg; Ed.

Computer Science

Performance

Scientific paper

A new type of laser retroreflector has been developed for JPL's future Space Interferometry Mission. The retroreflector consists of an assembly of prisms of form multiple hollow cornercubes. This allows the limited field of view of about 60 degrees of a single corner can be overcome, to comply with the geometry of an optical truss. In addition, an innovative feature is that the retroreflector has common vertices, in order to define a single point optical fiducial necessary for point-to-point 3D laser metrology. The multiple cornercube provides better thermal stability and optical performance than spherical and hemispherical type retroreflectors. In manufacturing the prototype, the key technology of assembling prisms to the interferometric accuracy has been demonstrated. A non common vertex error of a few micrometers has been achieved.

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