Modified gauss type lens system

Details Modified gauss type lens system Modified gauss type lens system

1978-09-05

1981-07-07

Corbin, John K.

G02B 960

Patent

active

042771498

ABSTRACT:
A modified Gauss type lens system of 5-group, 6-element is disclosed, which lens system comprises first to third and fifth groups each consisting of a single lens element and a fourth group consisting of a doublet and fulfills the following conditions:

REFERENCES:
patent: 2627204 (1953-02-01), Tronnier
patent: 2683396 (1954-07-01), Klemt et al.
patent: 2735340 (1956-02-01), Aklin
patent: 3817603 (1974-06-01), Takahashi
patent: 4131335 (1978-12-01), Kimura
patent: 4139265 (1979-02-01), Matsui
Abstract of German DBP No. 1,118,491 Jun., 1960.

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