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Proceedings Paper

Optomechanical design of a prism rotator
Author(s): Jaime Sandoval Gonzalez; Gonzalo Paez; Marija Strojnik
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Paper Abstract

A pair of thin prisms may be used to deviate the light beam without changing the image orientation in a vectorial shearing interferometer. The prism rotations determine the position of the wave front and the amount of its tilt. The separation between the prisms and their orientation determine the direction and the magnitude of the beam displacement. We designed a high precision mechanism with a fine resolution to rotate and displace each of two thin prisms. The device incorporates a two-axis calibration system. The angular resolution is 18 arc sec, with a periodic error of 3 arc sec, and a cumulative error of 10 arc sec is predicted.

Paper Details

Date Published: 8 February 2002
PDF: 11 pages
Proc. SPIE 4486, Infrared Spaceborne Remote Sensing IX, (8 February 2002); doi: 10.1117/12.455136
Show Author Affiliations
Jaime Sandoval Gonzalez, Univ. Iberoamericana (Mexico)
Gonzalo Paez, Ctr. de Investigaciones en Optica, A.C. (Mexico)
Marija Strojnik, CentrCtr. de Investigaciones en Optica, A.C. (United States)

Published in SPIE Proceedings Vol. 4486:
Infrared Spaceborne Remote Sensing IX
Marija Strojnik; Bjorn F. Andresen, Editor(s)

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