Restricted off-axis field optical system

Details Restricted off-axis field optical system Restricted off-axis field optical system

1979-12-21

1981-10-06

Clark, Conrad J.

350432, 350443, 350444, G02B 1708

Patent

active

042931860

ABSTRACT:
This invention provides, in a restricted off-axis field optical system having a broad spectral range, which includes refracting elements, the improvement comprising:

REFERENCES:
patent: 3244073 (1966-04-01), Bowers
patent: 3748015 (1973-07-01), Offner
patent: 3821763 (1974-06-01), Scott
patent: 3951546 (1976-04-01), Markle
patent: 4011011 (1977-03-01), Hemstreet
Makustov, D. D., "New Catadioptric Meniscus Systems", JOSA 34:5, May 1944, pp. 270-284.
Bouwers, A., "Achievements in Optics", Elsevier Publishing, 1946, pp. 24, 25, 39.

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