Wide field of view focal three-mirror anastigmat

Details Wide field of view focal three-mirror anastigmat Wide field of view focal three-mirror anastigmat

1991-08-16

1992-12-08

Arnold, Bruce Y.

Optical: systems and elements

Compound lens system

With curved reflective imaging element

359366, 359861, G02B 1706, G02B 510

Patent

active

051702843

ABSTRACT:
An all-reflective optical three-mirror system has a negative power primary (12), positive power secondary (14), and positive power tertiary (16) mirror which form a focal reimaging optical system. The system is capable of imaging very wide fields of view and may be utilized in pilotage, navigation, driving or the like operations while providing substantially complete detector cold shielding.

REFERENCES:
patent: 2970518 (1961-02-01), Ross
patent: 3631248 (1971-12-01), Johnson
patent: 4101195 (1978-07-01), Korsch
patent: 4240707 (1980-12-01), Wetherell et al.
patent: 4265510 (1981-05-01), Cook
patent: 4598981 (1986-07-01), Hallam et al.
patent: 4733955 (1988-03-01), Cook
patent: 4812030 (1989-03-01), Pinson
patent: 4834517 (1989-05-01), Cook

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