Small size telephoto lens

Details Small size telephoto lens Small size telephoto lens

1983-05-06

1985-11-05

Corbin, John K.

350464, G02B 1302

Patent

active

045509875

ABSTRACT:
There is disclosed herein several embodiments of a six-element telephoto lens system comprising, in order from an object, a first positive lens, a second negative lens, third and fourth positive-meniscus lenses having convex surfaces directed toward the object, a fifth negative lens, and a sixth positive lens, said lens system being arranged to meet the following conditions

REFERENCES:
patent: 4139264 (1979-02-01), Takahashi
patent: 4251133 (1981-02-01), Tsuji

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