Motion testing method and system for testing optical sensing modules
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United States of America Patent
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Issued Date -
Mar 2, 2006
app pub date -
Aug 1, 2005
filing date -
Aug 27, 2004
priority date (Note) -
Abandoned
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Abstract
The present invention discloses a motion testing method and system for testing optical sensing modules. A movable light source emitting a light beam projected onto photodetector arrays of the optical sensing modules. When the movable light source is moved under the control of a control signal, speckles formed in the light beam and detected by the photodetdectors will change accordingly. According to the changes of the speckles, moving signals are generated by control circuits of the optical sensing modules. A host computer thus compares each moving signal with the control signal, and determines a normal state when the movement pattern indicated by the moving signal is consistent with the control signal.
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