Optical: systems and elements – Compound lens system – With curved reflective imaging element
Patent
1993-02-08
1995-01-31
Arnold, Bruce Y.
Optical: systems and elements
Compound lens system
With curved reflective imaging element
359730, 359857, 359861, G02B 1700
Patent
active
053863160
ABSTRACT:
An all-reflective optical system has a first (10) and second (12) reflecting assembly. The first reflecting assembly (10) includes an afocal three-mirror anastigmat (18, 20, 22) with one or more apertures (28 A-D) in the tertiary mirror (22) to enable light or energy to pass therethrough. Light or energy reflects from the second reflecting assembly (12) through the apertures (28 A-D) to provide simultaneous viewing of a scene by a plurality of instruments (34). The second reflecting assembly (12) includes a planar mirror which provides pointing and stabilization motions for all of the instruments simultaneously without degrading image quality or pupil registration.
REFERENCES:
patent: 3454338 (1969-07-01), Girard et al.
patent: 3674334 (1972-07-01), Offner
patent: 4101195 (1978-07-01), Korsch
patent: 4632521 (1986-12-01), Korch
patent: 4993818 (1991-02-01), Cook
patent: 5009494 (1992-04-01), Iossi et al.
patent: 5136422 (1992-08-01), Ukon
Optical Engineering, vol. 25, No. 9, Sep. 1986, Bellingham, U.S., pp. 1045-1054.
J. B. Odom et al.: Technology and the Hubble Space Telescope Satellite, pp. 175-176; FIGS. 2, 3.
Arnold Bruce Y.
Denson-Low W. K.
Hughes Aircraft Company
Phan James
Sales M. W.
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