Compact optical apparatus
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United States of America Patent
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Oct 9, 2007
Grant Date -
Nov 3, 2005
app pub date -
Jul 16, 2005
filing date -
Feb 14, 2003
priority date (Note) -
Expired
status (Latency Note)
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Abstract
In a compact optical device, a light emitting area of a light source and a light sensing area of a detector are placed in proximity. The detector receives part of a beam which is reflected back to the source from a sample. As a result, a beam splitter is no longer needed. By eliminating the beam splitter and packing the light source and detector in closeness, dimensions of the optical device are reduced.
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