Microscope objective

Details Microscope objective Microscope objective

1983-11-18

1985-06-04

Corbin, John K.

G02B 962, G02B 2102

Patent

active

045210837

ABSTRACT:
A microscope objective comprising a first, second, third, fourth, fifth and sixth lens components wherein the first and second lens components are positive lenses respectively, the third lens component is a positive cemented lens, the fourth lens component is a cemented meniscus lens arranged to be convex toward the object side, the fifth lens component is a cemented meniscus lens arranged to be concave toward the object side, and the sixth lens component is a positive cemented doublet, the microscope objective having the magnification about 20X and N.A. about 0.4 and, at the same time, having a long working distance and flat image surface.

REFERENCES:
patent: 3925910 (1975-12-01), Matsuhara

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