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Proceedings Paper

Optical design of the ultralight-weight FIRST telescope
Author(s): Eri J. Cohen; Anthony B. Hull; Javier Escobedo-Torres; Daniel D. Barber; Roger A. Johnston; Donald W. Small; Aluizio Prata Jr.; Edward R. Freniere
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Paper Abstract

The FIRST telescope will be made of carbon fiber reinforced plastic. The optics follow a two mirror near-classical Ritchey-Chretian design, but deviates from that in two respects. The secondary mirror defines the pupil of the system, and the primary mirror is uncommonly fast at f/0.5. After presenting the optical design, the sensitivities will be presented. Current work in progress will be described in the following areas; (1) secondary mirror figure correction (2) stray light (3) primary mirror gaps (4) standing wave impact on the heterodyne instrument for FIRST (HIFI).

Paper Details

Date Published: 3 July 2000
PDF: 8 pages
Proc. SPIE 4015, Radio Telescopes, (3 July 2000); doi: 10.1117/12.390451
Show Author Affiliations
Eri J. Cohen, Jet Propulsion Lab. (United States)
Anthony B. Hull, Jet Propulsion Lab. (United States)
Javier Escobedo-Torres, Composite Optics, Inc. (United States)
Daniel D. Barber, LightWorks Optics, Inc. (United States)
Roger A. Johnston, LightWorks Optics, Inc. (United States)
Donald W. Small, LightWorks Optics, Inc. (United States)
Aluizio Prata Jr., Univ. of Southern California (United States)
Edward R. Freniere, Lambda Research Corp. (United States)

Published in SPIE Proceedings Vol. 4015:
Radio Telescopes
Harvey R. Butcher, Editor(s)

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