Embeddable 2-D projection nano engine for personal projector
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United States of America Patent
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Dec 20, 2011
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app pub date -
Mar 20, 2008
filing date -
Mar 20, 2007
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Abstract
A projector has a transmissive spatial light modulator backlit by a collimated illuminator that includes a light source that outputs red, green, blue (RGB) light, and a combiner disposed in light-receiving relation to the light source for mixing or combining the RGB light. The combiner has cavity features associated therewith for outputting collimated light, where such light preferably has a divergent cone angle less than plus or minus fifteen degrees (+/−15°).
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