Optical: systems and elements – Optical modulator – Light wave temporal modulation
Patent
1997-06-26
1998-06-30
Ben, Loha
Optical: systems and elements
Optical modulator
Light wave temporal modulation
359224, 359291, 359292, 345 84, 348771, G02F 103
Patent
active
057742545
ABSTRACT:
A display system attached to a fixed substrate includes a two-dimensional light modulator array having a plurality of light modulators arranged in a first row and a second row, with the first row at a first row position with respect to the fixed substrate and the second row at a second row position with respect to the fixed substrate. A mechanically movable element such as a rotary stepper or piezovibrator attaches the two-dimensional light modulator array to the fixed substrate. The movable element is operated to move the first row from its first row position to substantially occupy the second row position. In conjunction with various image processing deblurring and rescaling techniques, this effectively distributes light between adjacent rows to compensate for failure of one or more light modulators in a row.
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Journal of Vacuum Science Technology, B, vol. 12, No. 6(Jeffrey B. Sampsell, "Digital Micromirror Device and Its Application to Projection Displays", Nov./Dec. 1994, pp. 3242-3246).
Ben Loha
Burtzlaff Robert A.
Xerox Corporation
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