Optics: image projectors – Composite projected image – Multicolor picture
Reexamination Certificate
2011-08-23
2011-08-23
Epps, Georgia Y (Department: 2878)
Optics: image projectors
Composite projected image
Multicolor picture
C353S033000, C353S097000, C353S100000, C353S102000, C353S122000, C257S290000, C257S085000, C257SE27120, C257SE31096, C257S098000, C257S099000, C257S100000, C257S021000, C257S184000, C257S432000, C257S437000, C257S458000, C359S237000, C359S242000, C359S248000, C372S001000, C372S011000, C372S012000
Reexamination Certificate
active
08002412
ABSTRACT:
A projection system includes a light source module illuminating a plurality of monochromic lights, at least one optical modulator modulating the lights illuminated by the light source module according to each of color signals, a color combining prism combining the monochromic lights modulated by the optical modulator to form an image, and a projection lens projecting the image formed by the color combining prism toward a screen. A semiconductor diode including a P type semiconductor layer, an intrinsic semiconductor layer, and an N type semiconductor layer to absorb or transmit the monochromic lights according to the value of a reverse bias voltage is arranged in units of pixels.
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Buchanan & Ingersoll & Rooney PC
Chowdhury Sultan
Epps Georgia Y
Samsung LED Co., Ltd.
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