Optical pointing apparatus and personal portable device having the optical pointing apparatus
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United States of America Patent
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N/A
Issued Date -
Mar 22, 2007
app pub date -
Jun 10, 2005
filing date -
Jul 29, 2004
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
There are provided an optical pointing device and a personal portable device employing the same, the optical pointing device in which a horizontal optical path is formed, thereby minimizing the thickness of an optical system and providing a sufficient depth of a focus. The optical pointing device includes a cover glass directly contacting an object, a light source unit emitting light to the cover glass, and a light receiving unit reflecting the light reflected by the object in a predetermined direction via the cover glass and condensing the light in the predetermined direction, and picking up an image of the light. According to the present invention, pointing is possible by using the surface of a finger and a horizontal optical path is formed such that the thickness of an optical system is minimized, and a sufficient depth of a focus is provided, thereby keeping a beautiful exterior of an ultra slim personal portable device and performing convenient pointing.
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