Optical displacement module and method to reduce the size of an optical pointing device thereof
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United States of America Patent
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Mar 30, 2010
Grant Date -
Jan 12, 2006
app pub date -
Jul 6, 2004
filing date -
Jul 6, 2004
priority date (Note) -
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Abstract
An optical displacement system for an input device of a host device includes a substrate; an aperture; a light source and a sensor chip attached to the substrate, an illumination optics to direct the light emitted by the light source to a surface of an object. The sensor chip is configured to receive at least part of the light emitted by the light source after the light has been scattered/reflected on the surface of the object.
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