Endoscope objective lens and method of assembly
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United States of America Patent
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Sep 17, 2013
Grant Date -
Sep 30, 2010
app pub date -
Jun 10, 2010
filing date -
Jan 14, 2008
priority date (Note) -
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status (Latency Note)
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Abstract
A wide field video endoscope objective and method of assembly the objective including four groups with five lenses, a mechanical housing containing the entire image forming elements, a aperture stop, a centering member and a retainer sleeve. The centering member is at first centered over the photo sensitive area of the chip and bonded to the surface of the cover glass. The retainer sleeve slides over said centering member and is glued to the centering member and the housing of the video chip. The objective housing with the optical elements is screwed on the centering member to adjust for focusing.
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