Motion-detecting module with a built-in light source
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United States of America Patent
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Issued Date -
Jul 24, 2008
app pub date -
May 21, 2007
filing date -
Jan 18, 2007
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A motion-detecting module with a built-in light source includes a chip unit, a cover unit, and a light-guiding unit. The chip unit has a PCB, a light-emitting chip, and an image-sensing chip. The light-emitting chip and the image-sensing chip are electrically disposed on the PCB. The cover unit is covered on the image-sensing chip, and the cover unit has a first opening for exposing the image-sensing chip. The light-guiding unit is disposed on a bottom side of the cover unit, and the light-guiding unit has a surface having a reflective layer thereon with a concave structure. The surface and the reflective layer are formed a reflective surface for reflecting and condensing beams generated from the light-emitting chip. Therefore, the beams are reflected via the reflective surface to form first beams, and the first beams are reflected via the object surface to form second beams that project onto the image-sensing chip.
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