Catadioptric optical system

Details Catadioptric optical system Catadioptric optical system

1994-01-28

1997-01-07

Nguyen, Thong

Optical: systems and elements

Compound lens system

Telescope

359365, 359366, 359487, 359727, 359858, G02B 1700, G02B 530, G02B 510, G02B 300

Patent

active

055923291

ABSTRACT:
A catadioptric optical system includes, in succession from the object side, a first partial optical system having positive refractive power and for forming the primary image of an object, and a second partial optical system having positive refractive power and for forming a secondary image by light from the primary image, and at least one aperture stop may be provided in the optical path of the first partial optical system and at least one aperture stop may be provided in the optical path of the second partial optical system.

REFERENCES:
patent: 4241390 (1980-12-01), Markle et al.
patent: 4364631 (1982-12-01), Arondel et al.
patent: 4747678 (1988-05-01), Shafer et al.
patent: 4812028 (1989-03-01), Matsumoto
patent: 4897682 (1990-01-01), Kuwana
patent: 5323263 (1994-06-01), Schoenmakers

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