Miniature and large aperture retrofocus wide-angle lens

Details Miniature and large aperture retrofocus wide-angle lens Miniature and large aperture retrofocus wide-angle lens

1975-08-21

1977-03-01

Corbin, John K.

G02B 1304

Patent

active

040099440

ABSTRACT:
A miniature and large aperture retrofocus wide-angle lens whose aberration is satisfactorily corrected composed of eight lens elements consisting of ten lenses and grouped in two groups of five lenses each wherein the following conditions (1) to (6) are satisfied: ##STR1##

REFERENCES:
patent: 3938883 (1976-02-01), Takahashi

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