G - Physics – 02 – B
Patent
G - Physics
02
B
G02B 27/18 (2006.01) G03B 3/00 (2006.01)
Patent
CA 2427505
A projection system employing two light sources or two light valves is provided. The projection system includes first and second light sources, which are separated by a predetermined distance from each other and radiate single white light in parallel in the same direction; first and second spiral lens discs, which are composed of cylindrical lens cells arranged in a spiral shape and separate the single white light incident from the first and second light sources into multi white light by converting a rotational motion of the cylindrical lens cells into a rectilinear movement of a cylindrical lens array; first and second spectroscopes, which separate the multi white light incident from the first and second spiral lens discs into a plurality of color light beams having different wavelength bands; first and second light valves, which modulate the plurality of color light beams incident from the first and second spectroscopes according to an image signal in order to form an image; and first and second projection lenses, which project the color light beams modulated by the first and second light valves onto a screen to display the image. Accordingly, projection system improves the light emission efficiency and color balance of an image displayed on a screen and expands a color gamut.
Ridout & Maybee Llp
Samsung Electronics Co. Ltd.
LandOfFree
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