Retrofocus type wide angle lens of low F-number

Details Retrofocus type wide angle lens of low F-number Retrofocus type wide angle lens of low F-number

1975-02-03

1976-08-24

Corbin, John K.

G02B 900

Patent

active

039763676

ABSTRACT:
A wide angle lens of high performance comprising twelve lenses grouped in ten components which satisfies the following four conditions:

REFERENCES:
patent: 3738738 (1973-06-01), Takahashi
patent: 3841736 (1974-10-01), Takahashi et al.
patent: 3870402 (1975-03-01), Takahashi et al.

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