Catadioptric objective

Details Catadioptric objective Catadioptric objective

1977-04-14

1978-12-05

Clark, Conrad J.

350215, G02B 1708

Patent

active

041283058

ABSTRACT:
A catadioptric objective lens system that has a field of view of 10.degree., and that will provide: a large relative aperture of 1.28; optimum performance in the S-20 spectral range; and, maximum light throughout the region of apertures for exactly the 10.degree. field of view.

REFERENCES:
patent: 2730926 (1956-01-01), Back et al.
patent: 3490831 (1970-01-01), Takahashi
patent: 3515461 (1970-06-01), Casas et al.
patent: 3529888 (1970-09-01), Buchroeder
patent: 3547525 (1970-12-01), Rayces et al.

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