Fault tolerant projective display having redundant light modulators
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United States of America Patent
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Sep 29, 1998
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N/A
app pub date -
Jun 26, 1997
filing date -
Jun 26, 1997
priority date (Note) -
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Abstract
A projective display system includes a light source, a display surface, and a two dimensional light modulator array in an optical path between the light source and the display surface. The two dimensional light modulator array has a plurality of light modulators arranged in rows to modulate light from the light source, with at least one row being susceptible to failure. To compensate for any failed rows, a redundant light modulator array is provided, with modulated light output of the redundant light modulator array being directed by an optical element positioned to selectively substitute for at least one failed row of light modulators.
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