Enlarging lens system

Details Enlarging lens system Enlarging lens system

1975-12-16

1977-08-30

Corbin, John K.

350215, 350218, G02B 960

Patent

active

040451275

ABSTRACT:
A large-aperture enlarging lens system which comprises a first positive meniscus lens component, a second positive meniscus lens component, a third lens component consisting of two lens elements, a fourth lens component consisting of two lens elements and a fifth positive lens component, either one of said third and fourth lens components arranged on both sides of a stop having a convex lens on the side of said stop, and wherein aberrations are favorably corrected.

REFERENCES:
patent: 2319171 (1943-05-01), Warmisham
patent: 2878723 (1959-03-01), Herzberger
patent: 3556643 (1971-01-01), Tibbetts et al.

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