Microscope objective lens system

Details Microscope objective lens system Microscope objective lens system

1979-11-30

1982-03-30

Corbin, John K.

G02B 2102

Patent

active

043221360

ABSTRACT:
A microscope objective lens system by using a Gauss type lens system, in which the N. A. is large, the working distance is long, the image surface is flat over a wide angle of view and various aberrations are well corrected. The system comprises a first lens component comprising two or three single positive lenses, a second lens component comprising a cemented meniscus lens having its convex surface faced to the object side, a third lens component comprising a cemented meniscus lens having its concave surface faced to the object side, and a fourth lens component comprising a single positive lens.

REFERENCES:
patent: 2644943 (1953-07-01), Klein
patent: 3744881 (1973-07-01), Taira
patent: 3802765 (1974-04-01), Vuijk
patent: 3806231 (1974-04-01), Taira
patent: 3925910 (1975-12-01), Matsubara

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