Imaging device
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United States of America Patent
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Jun 29, 2010
Grant Date -
Jul 2, 2009
app pub date -
Sep 27, 2006
filing date -
Oct 17, 2005
priority date (Note) -
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status (Latency Note)
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Abstract
It is an object of the present invention to provide an imaging device that, even if the optical axis of the multifocal lens has a deviation resulting from its decentered surfaces, can prevent an image from being deteriorated by the low precision lens. The imaging device comprises a solid state image sensor for taking an image of an object to produce an image signal indicative of the image, an aspherical single focus lens, a bifocal lens disposed in front of the solid state image sensor, the bifocal lens having two focal distances, and an aperture diaphragm located just before the bifocal lens.
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