Optical: systems and elements – Compound lens system – Microscope
Patent
1994-03-30
1998-07-07
Nguyen, Thong
Optical: systems and elements
Compound lens system
Microscope
359381, 359385, 359432, G02B 2106, G03B 1306
Patent
active
057777845
ABSTRACT:
A reflecting illumination optical system for microscopes has a light source, a lamp house section including a collector lens with a focal length corresponding to the light source, and a reflecting projection tube section including a projection optical system for projecting the image of the light source at a position adjacent to the pupil of an objective lens. Further, a variable magnification section composed of a nearly afocal variable magnification lens unit is removably inserted between the reflecting projection tube section and the lamp house section, or in the interior of the reflecting projection tube section. Thus, when the lamp house section is replaced by another, the magnification of projection of the light source at the position adjacent to the pupil of the objective lens can be changed.
REFERENCES:
patent: 3464760 (1969-09-01), Laures
patent: 3799645 (1974-03-01), Stankewitz
patent: 3813172 (1974-05-01), Walker et al.
patent: 4148552 (1979-04-01), Suzuki et al.
patent: 4284327 (1981-08-01), Kesaft et al.
patent: 4397529 (1983-08-01), Taira
patent: 4687304 (1987-08-01), Piller et al.
patent: 4852985 (1989-08-01), Fujihara et al.
patent: 5325231 (1994-06-01), Tamura et al.
Inoue, Everything about Microscope, Chijin Shokan Co., Ltd, Apr. 1, 1977, pp. 36-38, partial English translation.
Nguyen Thong
Olympus Optical Co,. Ltd.
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