Quasi-sparse optical illumination
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United States of America Patent
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Jan 15, 2019
Grant Date -
Feb 1, 2018
app pub date -
Jul 25, 2017
filing date -
Jul 26, 2016
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Abstract
In described examples, a DMD includes micromirrors. A first light source generates a first beam profile illuminating a first set of micromirrors of the DMD. A second light source generates a second beam profile illuminating a second set of micromirrors of the DMD. The first and second beam profiles partially overlap on at least some micromirrors of the DMD. The first light source is source-modulated independently of the second light source for adjusting power and brightness in response to a sensed driving condition. The micromirrors of the DMD are modulated in response to the sensed driving condition.
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