Introduction To Long Focal Length Catadioptric Systems

John F. Coughlin

doi:10.1117/12.959266

23 December 1980 Introduction To Long Focal Length Catadioptric Systems

John F. Coughlin

Proceedings Volume 0242, Long Focal Length, High Altitude Standoff Reconnaissance; (1980) https://doi.org/10.1117/12.959266
Event: 24th Annual Technical Symposium, 1980, San Diego, United States

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.

Citation Download Citation

John F. Coughlin "Introduction To Long Focal Length Catadioptric Systems", Proc. SPIE 0242, Long Focal Length, High Altitude Standoff Reconnaissance, (23 December 1980); https://doi.org/10.1117/12.959266

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