Condenser optical system for a microscope

Details Condenser optical system for a microscope Condenser optical system for a microscope

1979-03-12

1982-02-23

Corbin, John K.

350 12, 350 87, 350469, G02B 934, G02B 960, G02B 2108

Patent

active

043166539

ABSTRACT:
A condenser optical system for a microscope comprises, in order from the light ray entrance side, a forward group and a rearward group. The forward group includes a negative lens component and a positive lens component either cemented to or separated from the negative lens component. The rearward group consists of a plurality of lens components and has a totally positive refractive power. The air separation between the forward group and the rearward group is smaller than the total center thickness of the rearward group. The front focus of the rearward group lies in the air separation.
The condenser optical system is of high magnification and yet can perform good optical compensation for the light source.

REFERENCES:
patent: 3592530 (1971-07-01), Klein
patent: 4037934 (1977-07-01), Matsubara
patent: 4059342 (1977-11-01), Tojyo
patent: 4060306 (1977-11-01), Swaminathan
patent: 4084885 (1978-04-01), Coussot

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