Radiant energy – Photocells; circuits and apparatus – Photocell controls its own optical systems
Patent
1991-12-20
1993-04-27
Nelms, David C.
Radiant energy
Photocells; circuits and apparatus
Photocell controls its own optical systems
250216, 359 20, 359399, G01J 120
Patent
active
052064999
ABSTRACT:
A star tracker for generating positional information for a vehicle includes a holographic telescope (150) having one or more fields of view for imaging stellar objects. The telescope includes a plurality of radiation detectors (100) and an input aperture comprised of a primary holographic optical element (HOE) (134). The primary HOE provides one or more wavefronts to one or more secondary HOEs (136), each of which applies a chromatic correction so as to correct for a chromatic aberration induced by the primary HOE. A single or multiple field of view Schmidt telescope embodiment is also disclosed having one or more aspheric corrector plate HOEs and one or more associated concave spherical reflectors.
REFERENCES:
patent: 3263088 (1966-07-01), Goldfischer
patent: 3915548 (1975-10-01), Opittek et al.
patent: 3940203 (1976-02-01), La Russa
patent: 3949490 (1976-04-01), Derderian et al.
patent: 4072395 (1978-02-01), Mohon
patent: 4181435 (1980-01-01), Williamson et al.
patent: 4184749 (1980-01-01), Grossman
patent: 4185919 (1980-01-01), Williamson et al.
patent: 4189116 (1980-02-01), Ehrich et al.
patent: 4245882 (1981-06-01), Chang
patent: 4330705 (1982-05-01), Kollodge
patent: 4490981 (1985-01-01), Meckler
patent: 4550973 (1985-11-01), Hufnagel
patent: 4641934 (1987-02-01), Freeman
patent: 4662730 (1987-05-01), Outwater et al.
patent: 4669812 (1987-06-01), Hoebing
patent: 4687282 (1987-08-01), Ferrante
patent: 4701005 (1987-10-01), Noguchi
patent: 4730912 (1988-03-01), Loy et al.
patent: 4740681 (1988-04-01), Tsuno
patent: 4957336 (1990-09-01), Hasegawa et al.
patent: 5012081 (1991-04-01), Jungwirth et al.
Jungwirth Douglas R.
Levine Seymour
Mantravadi Murty V.
Raffensperger Susan M.
Simpson Phillip
Anderson Terry J.
Block Robert B.
Hoch Karl J.
Nelms David C.
Northrop Corporation
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