Rear conversion lens

Details Rear conversion lens Rear conversion lens

1984-12-24

1987-03-31

Corbin, John K.

350465, 350471, G02B 1502, G02B 940, G02B 960

Patent

active

046538712

ABSTRACT:
A rear conversion lens is composed of a front lens group comprising three lenses of positive, negative and positive from the object side and a rear lens group comprising two lenses of negative and positive from the object side and satisfying certain conditions.

REFERENCES:
patent: 4206971 (1980-06-01), Hamanishi et al.
patent: 4514051 (1985-04-01), Hamanishi

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