LEAKAGE LIGHT INTENSITY SENSING IN LIGHT PROJECTOR
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United States of America Patent
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app pub date -
Jun 25, 2009
filing date -
Jun 25, 2009
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Abstract
In a light projection system, potentially hierarchical levels of light intensity control ensure proper laser-light output intensity, color channel intensity, white point, left/right image intensity balancing, or combinations thereof The light projection system can include a light intensity sensor in an image path, in a light-source subsystem light-dump path, in a light-modulation subsystem light-dump path, in a position to measure light leaked from optical components, or combinations thereof.
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