Microscope-illuminating system

Details Microscope-illuminating system Microscope-illuminating system

1974-03-06

1976-01-20

Rubin, David H.

Buckles, buttons, clasps, etc.

240 2MA, G02B 2108

Patent

active

039334082

ABSTRACT:
Light from a fluorescent lamp successively passes a field stop, a condensing lens assembly close to that stop, an aperture stop and a microscope objective. The condensing lens assembly projects an aerial image of the lamp in the vicinity of the aperture stop and focuses the field stop at infinity; the microscope objective focuses an image of the field stop on its object plane. A dispersive lens may be interposed between the fluorescent lamp and the field stop to enable the use of condensing lens assemblies of short focal length.

REFERENCES:
patent: 2730923 (1956-01-01), Gorham et al.
patent: 2738708 (1956-03-01), Rosin
patent: 3137761 (1964-06-01), Conradi et al.
patent: 3414345 (1968-12-01), Mollring
patent: 3421808 (1969-01-01), Gottlieb
patent: 3679287 (1972-07-01), Takahashi et al.
patent: 3799645 (1974-03-01), Stankewitz

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