Photographic lens system

Details Photographic lens system Photographic lens system

1983-11-17

1987-02-24

Corbin, John K.

350463, G02B 962

Patent

active

046453121

ABSTRACT:
A photographic lens system having a field angle of 70.degree. or wider and designed for use with compact cameras having a relative aperture of F/3.5 comprising a first positive meniscus lens component having a convex surface on the object side, a second positive meniscus lens component having a convex surface on the object side, a third negative meniscus lens component having a convex surface on the object side, a fourth lens component having positive refractive power, and a fifth lens component comprising a negative lens element and having positive refractive power as a whole.

REFERENCES:
patent: 4057328 (1977-11-01), Matsubara
patent: 4165916 (1979-08-01), Nakamura

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