Microscope objective

Details Microscope objective Microscope objective

1977-10-05

1980-01-22

Sacher, Paul A.

350216, G02B 960

Patent

active

041847474

ABSTRACT:
A microscope objective comprising a first, second, third, fourth and fifth lens components, in which the first lens component is a negative meniscus lens, the second lens component is a positive meniscus lens, the third and fourth lens components are positive cemented doublets and the fifth lens component is a negative cemented meniscus doublet, and for which the numerical aperture is large and the image becomes flat toward marginal portion.

REFERENCES:
patent: 3428389 (1969-02-01), Judd
patent: 3481665 (1969-12-01), Rosenberger
patent: 3497290 (1970-02-01), Rosenberger
patent: 3537772 (1970-11-01), Shoemaker
patent: 3598474 (1971-08-01), Shoemaker
patent: 3879111 (1975-04-01), Goto
patent: 3902793 (1975-09-01), Shoemaker

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