Objective lens system for microscopes

Details Objective lens system for microscopes Objective lens system for microscopes

1984-02-06

1985-08-27

Corbin, John K.

350464, G02B 962, G02B 2102

Patent

active

045374724

ABSTRACT:
An objective lens system for microscopes designed for a magnification level of 60X and NA of 1.4, excellent in contrast and resolution, and comprising a first cemented doublet component comprising a plano-convex lens element and a meniscus lens element having a strongly concave surface on the object side, a second meniscus lens component, a third cemented component comprising a convex lens element, a concave lens element and a convex lens element, a fourth cemented component comprising a negative meniscus lens element, a biconvex lens element and a negative lens element, a fifth cemented doublet component having a strongly concave surface on the image side and a sixth cemented doublet component having a strongly concave surface on the object side.

REFERENCES:
patent: 3530436 (1970-09-01), Bertele et al.
patent: 3700311 (1972-10-01), Shoemaker
patent: 3746428 (1973-07-01), Shoemaker
patent: 4373785 (1983-02-01), Shoemaker
patent: 4376570 (1983-03-01), Sussman

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