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Proceedings Paper

Introduction To Long Focal Length Catadioptric Systems
Author(s): John F. Coughlin
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Paper Abstract

Satisfaction of intelligence needs using high-altitude stand-off photography requires angular resolution that can only be achieved with large aperture optics. Unfortunately, straightforward application of purely refractive optical designs often leads to unacceptable large and/or massive optical systems. For these large aperture requirements, the less familiar catadioptric design approach offers a viable alternative to the opto-mechanically simpler refractive system. Design considerations for catadioptric photographic systems are discussed and specific refractive and catadioptric designs are compared. Particular attention is given to the potential for lightweight, thermally stable, catadioptric systems.

Paper Details

Date Published: 23 December 1980
PDF: 7 pages
Proc. SPIE 0242, Long Focal Length, High Altitude Standoff Reconnaissance, (23 December 1980); doi: 10.1117/12.959266
Show Author Affiliations
John F. Coughlin, Itek Optical Systems (United States)


Published in SPIE Proceedings Vol. 0242:
Long Focal Length, High Altitude Standoff Reconnaissance
Donald H. Jarvis, Editor(s)

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