Telephoto lens system

Details Telephoto lens system Telephoto lens system

1987-04-06

1988-11-22

Corbin, John K.

350457, G02B 1302

Patent

active

047861525

ABSTRACT:
A compact telephoto lens system with a large aperture whose aberrations are corrected well at any focusing position. This telephoto lens system consists of three lens units, namely a positive, a negative and a positive lens unit and only the negative lens unit moves for focusing.

REFERENCES:
patent: 4483597 (1984-11-01), Mihara
patent: 4527868 (1985-07-01), Mihara
patent: 4558928 (1985-12-01), Imaizumi
patent: 4610514 (1986-09-01), Nakamura

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