New Methods of Optical Modeling for Astronomical Instrumentation

Details New Methods of Optical Modeling for Astronomical Instrumentation New Methods of Optical Modeling for Astronomical Instrumentation

May 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996aas...188.5405s&link_type=abstract

American Astronomical Society, 188th AAS Meeting, #54.05; Bulletin of the American Astronomical Society, Vol. 28, p.905

Astronomy and Astrophysics

Astronomy

Scientific paper

A new raytracing program written by the author is being used to model the Keck II telescope and two new instruments currently being built at UCO/Lick Observatory, DEIMOS and ESI. Optical systems are written as programs in a block-structured programming language which includes arbitrary mathematical expressions. Full three-dimensional models of the telescope and instruments are raytraced, and a complete description of the final system can be written as an AutoCAD file for mechanical engineering purposes. Detailed spectral format, distortion, image diameters, and beam "footprints" at any surface are easily displayed. Light losses from surface reflections and internal absorption in refractive elements and vignetting are calculated. Examples of each of these uses are given for either the DEIMOS or ESI instruments.

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