Illumination apparatus for microscope

Details Illumination apparatus for microscope Illumination apparatus for microscope

2008-01-01

2008-01-01

Nguyen, Thong Q (Department: 2872)

Optical: systems and elements

Compound lens system

Microscope

C359S368000, C359S372000, C359S618000

Reexamination Certificate

active

11269408

ABSTRACT:
An illumination apparatus for a microscope includes a light source portion that projects a light beam, two splitting elements that split the light beam into three, wavelength selection elements that independently select transmission wavelengths of the three light beams, shutters that independently shield or guide the three light beams, a first combining element that combines optical paths of two light beams, a second combining element that combines an optical path of the remaining light beam with a combined optical path, a pinhole that is located on an optical path between the first and second combining elements and has an aperture that selectively transmits only part of a light beam, and a projection optical system that applies a light beam from the second combining element to a sample and, when applying a light beam from the pinhole to the sample, projects the aperture of the pinhole onto the sample.

REFERENCES:
patent: 5264879 (1993-11-01), Shikama
patent: 6262837 (2001-07-01), Nagano et al.
patent: 6310726 (2001-10-01), Iizuka
patent: 2002/0020800 (2002-02-01), Knebel et al.
patent: 2003/0048530 (2003-03-01), Sander
patent: 2004/0120034 (2004-06-01), Miyawaki et al.
patent: 42 21 063 (1994-01-01), None
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patent: 10-090608 (1998-04-01), None
patent: 2004-177662 (2004-06-01), None
English translation of the Japanese reference No. 2004-177662.

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