Catadioptric virtual-zoom optical system

Details Catadioptric virtual-zoom optical system Catadioptric virtual-zoom optical system

1979-05-14

1981-07-14

Clark, Conrad J.

350442, G02B 1516, G02B 1708

Patent

active

042783305

ABSTRACT:
A zoom optical system utilizes a virtual object relay system in order to obtain compact size in a large aperture instrument while minimizing chromatic aberration. The size may further be reduced by employing limited amounts of special optical materials for some of the lens elements.

REFERENCES:
patent: 2778272 (1957-01-01), Reymond
patent: 3152214 (1964-10-01), Korones
patent: 3529888 (1970-09-01), Buchroeder

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