Wide-angle photographic lens system

Details Wide-angle photographic lens system Wide-angle photographic lens system

1975-10-01

1976-11-30

Corbin, John K.

350176, G02B 964

Patent

active

039945740

ABSTRACT:
A compact wide-angle photographic lens system for which the total focal length of the front lens group is made a negative value and for which low-dispersion glass is used for the positive first lens component and high-dispersion glass is used for the negative second lens component in said front lens group in order to favorably correct various aberration, especially chromatic aberration.

REFERENCES:
patent: 3135818 (1964-06-01), Turula et al.
patent: 3645605 (1972-02-01), Nakagawa
patent: 3830559 (1974-08-01), Matsubara
patent: 3832037 (1974-08-01), Nakagawa
patent: 3862794 (1975-01-01), Fuji

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