COMPENSATING FOR PIXEL DEFECTS BY SPATIAL TRANSLATION OF SCENE CONTENT
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United States of America Patent
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Jun 15, 2004
Grant Date -
Jun 24, 2004
app pub date -
Dec 20, 2002
filing date -
Dec 20, 2002
priority date (Note) -
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status (Latency Note)
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Abstract
An improved method is provided for compensating for pixel site defects of a spatial light modulator (30) in an imaging apparatus (10). An image is formed at a first position and directed to a surface (36). Then, an actuator (40) shifts the spatial light modulator (30) over a shift distance to a second position, which is some integer multiple n of the distance between pixels (72) on the spatial light modulator (30). A second image is formed on the spatial light modulator (30), shifted by the shift distance, and directed to the surface (36). Optionally, dithering is provided with an additional shift of an increment of the distance between pixels (72).
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Cited Art Landscape
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