1975-11-17
1977-04-19
Corbin, John K.
G02B 1304
Patent
active
040185117
ABSTRACT:
A wide angle lens which is designed to achieve miniaturization without sacrificing optical quality is disclosed.
REFERENCES:
patent: 3622227 (1971-11-01), Shimizu
patent: 3870402 (1975-03-01), Takahashi
Asahi Kogaku Kogyo Kabushiki Kaisha
Clark Conrad
Corbin John K.
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