Objective lens system

Details Objective lens system Objective lens system

1975-02-12

1976-11-02

Corbin, John K.

G02B 912

Patent

active

039893170

ABSTRACT:
Achromat objective lens systems and more particularly an objective lens system having a magnification .beta. on the order of 10 to 30X and designed to operate particularly for the monochromatic light whose wave length is on the order of 6328 A. The lens system consists of three lens components and four lenses. The first and second lens components are positive singlet lenses. The third lens component is a positive doublet lens composed of a negative meniscus lens and a biconvex lens. The lens system is constructed so as to satisfy the following three conditions:

REFERENCES:
patent: 3272072 (1966-09-01), Ziegler

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