Behind-stop type lens system for photographic cameras

Details Behind-stop type lens system for photographic cameras Behind-stop type lens system for photographic cameras

1978-01-30

1980-03-11

Clark, Conrad J.

G02B 920

Patent

active

041925793

ABSTRACT:
A lens system for photographic cameras which has a very short total length and wherein aberrations are favorably corrected. Said lens system comprises a first positive meniscus lens component, a second biconcave lens component and a third cemented doublet component, and said lens system satisfying the conditions enumerated hereunder:

REFERENCES:
patent: 2158178 (1939-05-01), Frederick et al.
patent: 2165328 (1939-07-01), Aklin et al.
patent: 3953112 (1976-04-01), Imai

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