Optics: image projectors – Composite projected image – Multicolor picture
Reexamination Certificate
2005-06-17
2009-08-04
Koval, Melissa J (Department: 2862)
Optics: image projectors
Composite projected image
Multicolor picture
C353S081000, C353S084000, C353S094000, C353S099000, C349S005000, C359S630000, C359S684000, C359S834000
Reexamination Certificate
active
07568805
ABSTRACT:
An illumination unit includes multiple light source units to emit light having different wavelengths, and a synthesizing prism to synthesize the emitted light. The synthesizing prism includes a first triangular prism (tp) having a first outer surface (os) to transmit (reflect) the light according to the light's input a direction, and first and second boundary surfaces (bs), a second tp having a second os to transmit the light, a third bs facing the second bs, and a fourth bs, a third tp having a third os to transmit (reflect) the light according the light's input direction, a fifth bs facing the fourth bs, and a sixth bs facing the first bs, and a color separation portion arranged at least one of positions between the second and third bs, the fourth and fifth bs, and the sixth and first bs, to selectively transmit (reflect) the light according to wavelengths thereof.
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Lee Kye-hoon
Lee Won-yong
Lee Young-chol
Sokolov Kirill
Koval Melissa J
Samsung Electronics Co,. Ltd.
Stanzione & Kim LLP
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