Catadioptric zoom lens

Details Catadioptric zoom lens Catadioptric zoom lens

1989-03-27

1990-11-20

Dzierzynski, Paul M.

350446, 350503, G02B 1700

Patent

active

049714287

ABSTRACT:
A catadioptric zoom lens comprising from the object end a first catadioptric group including a relay subgroup for forming an intermediate image, zoom relay, the zoom relay including a positive variator group and a negative power compensator group, the variator group comprising a first sub-unit of weak power contributing to correction of coma and a second sub-unit providing most of the positive power of the variator group.

REFERENCES:
patent: 3152214 (1964-10-01), Korones et al.

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