Compact projector with high optical performance
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United States of America Patent
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Jul 14, 2015
Grant Date -
Feb 6, 2014
app pub date -
Jun 14, 2013
filing date -
Jul 31, 2012
priority date (Note) -
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Abstract
A projector includes an illuminating system and an imaging system. The illuminating system includes a light source module, a lens array, a condenser lens and a display panel, in which light beams are generated by the light source module, uniformly dispersed by the lens array, condensed by the condenser lens, and reflected by the display panel to obtain image light, and the condenser lens has an effective focal length substantially equal to a product of an f-number of the illuminating system and a thickness of the lens array. The imaging system outwardly projects the image light.
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