Surgery – Endoscope – With camera or solid state imager
Patent
1995-07-14
1999-01-19
Leubecker, John P.
Surgery
Endoscope
With camera or solid state imager
348 45, A61B 104
Patent
active
058609121
ABSTRACT:
Two objective lens systems are disposed at a forward end of an elongated insertion part in spaced relation to the left and right so as to have a parallax in left- and right-hand directions. Images of an object due to respective objective lens systems are image-formed respectively onto CCDs. Image signals which are photoelectrically converted by the respective CCDs are converted into left- and right-hand image signals by a stereo-image-signal processing circuit and are displayed in time division on a monitor. The image signals are observed through left- and right-hand liquid crystal spectacles, whereby it is possible to stereoscopically view the image signals. In order to electrically correct mutual variation due to the two objective lens systems and the two CCDs, distortion which is generated individually, or the like, the image signals of the respective CCDs pass through an image correction circuit which corrects positional shift, inclination, magnification and distortion of an image independently of each other to process correction of the image. A monitor displays the image which is superior in quality.
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Leubecker John P.
Olympus Optical Co,. Ltd.
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