Wide-angle photographic lens

Details Wide-angle photographic lens Wide-angle photographic lens

1985-09-20

1987-09-08

Corbin, John K.

350432, G02B 960, G02B 1318

Patent

active

046919961

ABSTRACT:
A wide-angle photographic lens system having a shortened overall length consisting of, in the order from the object side, first lens means comprising a positive meniscus lens with a convex surface directed to the object, second lens means comprising a negative lens, third and fourth lens means of positive lenses, and a fifth lens means of a negative meniscus lens with a concave surface directed to the object.

REFERENCES:
patent: 4390250 (1983-06-01), Imai
patent: 4429958 (1984-02-01), Yamaguchi
patent: 4477154 (1984-10-01), Sato
patent: 4576448 (1986-03-01), Ikari

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