Light-gathering structure for scanning module
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United States of America Patent
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Issued Date -
Apr 13, 2006
app pub date -
Feb 24, 2005
filing date -
Oct 13, 2004
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A light-gathering structure for a scanning module is disclosed. The light-gathering structure for a scanning module having at least a scanning area, a lens and a light-sensing element includes at least an elliptic arc surface having a first focus; at least a circular arc surface having a circular center being superpositioned on the first focus; and at least a light source positioned at the first focus, wherein a light from the light source is reflected by the elliptic arc surface and the circular arc surface to the scanning area and converged on the light-sensing element through the lens.
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