Gamma correction for adjustable light source
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United States of America Patent
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Nov 2, 2010
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N/A
app pub date -
Sep 5, 2008
filing date -
Nov 1, 2003
priority date (Note) -
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Abstract
The present invention provides a projection apparatus comprising: a light source, a light source control unit for controlling the output of the light source; at least one spatial light modulator for modulating the illumination light from the light source by multiple pixel elements; and an optical system for projecting, onto a screen, the illumination light deflected by the spatial light modulator, wherein: the light source control unit 1) modulates the output of the illumination light from the light source during a modulation period of the spatial light modulator, and 2) non-linearly controls the gray scale of an image projected onto the screen.
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