High sensitivity microscope

Details High sensitivity microscope High sensitivity microscope

1992-03-24

1994-03-22

Sugarman, Scott J.

Optical: systems and elements

Compound lens system

Microscope

359368, 359381, G02B 2106

Patent

active

052969622

ABSTRACT:
A high sensitivity microscope is applicable to observe a dark specimen image or an image of a specimen unsuitable for irradiation by strong illumination light, through the use of an image intensifier capable of being inserted into a viewing optical system. The viewing optical system comprises an objective and an eyepiece, and an image intensifier may be disposed in the viewing optical system such that an acceptance plane thereof is located at an image plane of the objective and such that an optical output plane thereof is conjugate with an image plane of the eyepiece. Also, an optical path switch mechanism may be provided to guide light from the objective selectively through an optical path including the image intensifier or through an optical path not including the image intensifier. Alternatively, the image intensifier or a relay lens may be selectively inserted into the viewing optical system.

REFERENCES:
patent: 4128340 (1978-12-01), Fender et al.
patent: 4253726 (1981-03-01), Taira
patent: 4398788 (1983-08-01), Dietz
patent: 4467190 (1984-08-01), Hadani
patent: 4592625 (1986-06-01), Uehara et al.
patent: 4641931 (1987-02-01), Loy

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