Development of the Schiefspiegler

Orestes Nicholas Stavroudis; Francisco J. Cuevas-de-la-Rosa

doi:10.1117/12.185849

14 September 1994 Development of the Schiefspiegler

Orestes Nicholas Stavroudis, Francisco J. Cuevas-de-la-Rosa

Proceedings Volume 2268, Infrared Spaceborne Remote Sensing II; (1994) https://doi.org/10.1117/12.185849
Event: SPIE's 1994 International Symposium on Optics, Imaging, and Instrumentation, 1994, San Diego, CA, United States

Abstract

The topic is wildly off-axis reflecting systems (Schiefspiegler) which consist of a pair of confocal prolate spheroids. That they are reflecting makes them appropriate for use in the infrared. By wildly off-axis I mean that the angle between the major axes of the two spheroids may be arbitrarily large, a property that makes them particularly useful in the cramped quarters on a satellite. In this construction two foci, one from each of the spheroids, are made to coincide. The remaining two, belonging to each spheroid, are taken as the systems entrance and exit pupils. Thus a chief ray will pass through each of these three points. In previous papers we have defined the pseudo axis as on e of the chief rays about which all other chief rays are symmetric and the conditions for its existence had been derived. Conditions for the formation of particular types of imaging forming systems, or for afocal systems, also have been derived. In this paper we present specific examples of these systems together with analyses of their properties as determined by generalized ray tracing.

Citation Download Citation

Orestes Nicholas Stavroudis and Francisco J. Cuevas-de-la-Rosa "Development of the Schiefspiegler", Proc. SPIE 2268, Infrared Spaceborne Remote Sensing II, (14 September 1994); https://doi.org/10.1117/12.185849

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