Optical: systems and elements – Compound lens system – Microscope
Patent
1998-04-02
2000-07-11
Nguyen, Thong
Optical: systems and elements
Compound lens system
Microscope
359368, 359630, G02B 2122
Patent
active
060881542
ABSTRACT:
An operating microscope having an image projecting optical system (9) for introducing an image derived from an endoscopic optical system, which is provided separate from an operating-microscopic optical system, into an eyepiece optical system (18) of the operating microscope so that the operating-microscopic image and the endoscopic image can be simultaneously observed. The image projecting optical system (9) includes a collimating optical system (10), which collimates a beam of rays emergent from the image derived from the endoscopic optical system, and an imaging optical system (13), which forms an image on an image surface of the operating-microscopic optical system provided for observation via eyepiece using the beam of parallel rays emergent from the collimating optical system (10). The imaging optical system (13) is constructed to be movable at least in such a range that its entrance aperture can receive the beam of parallel rays. Whereby, the operating-microscopic image and the endoscopic images are simultaneously observed via the eyepiece optical system (18) of the operating microscope irrespective of adjustment of interpupillary distance, and the operating microscope is constructed to be compact and highly operable.
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patent: 5601549 (1997-02-01), Miyagi
patent: 5886822 (1999-03-01), Spitzer
Nguyen Thong
Olympus Optical Co,. Ltd.
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