Retrofocus type wide angle lens system

Details Retrofocus type wide angle lens system Retrofocus type wide angle lens system

1977-04-05

1978-12-19

Sacher, Paul A.

G02B 960

Patent

active

041303490

ABSTRACT:
A retrofocus type wide-angle lens system comprising five components of five lens elements including a front diverging lens group consisting only of a single lens element and a thick positive lens element arranged at the second stage, said lens system being so designed as to have a short total length and favorably correct various aberrations.

REFERENCES:
patent: 3731989 (1973-05-01), Shimizu
patent: 3936153 (1976-02-01), Ogura

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