System and method for solid state illumination for DMD devices
First Claim
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1. A spatial light modulator array comprising:
- a spatial light modulator device operable to modulate light impacting a surface of said device, wherein said device includes a plurality of individually controlled cells;
a plurality of individual solid state light emitting elements arranged in a unitary structure and focused on said spatial light modulator device; and
a receptor for receiving light from selected ones of said individually controlled cells.
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Abstract
There is disclosed an optic system for illuminating a DMD array in a xerographic printing process consisting of an array of LED emitters constructed to efficiently replace the conventional tungsten source used in prior art. The array can be geometrically configured or electrically operated by strobing or varying the brightness of individual pixels to compensate for other system optical deficiencies and results in improved printing process. By exposure strobing the LED source correction for fuzzy line edges can be achieved.
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Citations
41 Claims
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1. A spatial light modulator array comprising:
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a spatial light modulator device operable to modulate light impacting a surface of said device, wherein said device includes a plurality of individually controlled cells; a plurality of individual solid state light emitting elements arranged in a unitary structure and focused on said spatial light modulator device; and a receptor for receiving light from selected ones of said individually controlled cells. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A xerographic printer comprising:
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a spatial light modulator device operable to modulate light impacting a surface of said device wherein said device includes a plurality of individually controlled cells; a plurality of individual solid state light emitting elements arranged in a unitary structure and focused on said spatial light modulator device; and a receptor for receiving light from selected ones of said individually controlled cells. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. A method of establishing a xerographic printer comprising the steps of:
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positioning a spatial light modulator device operable to modulate light impacting a surface of said device, wherein said device includes a plurality of individually controlled cells; arranging a plurality of individual solid state light emitting elements in a unitary structure and focused on said spatial light modulator device; and a receptor for receiving light from selected ones of said individually controlled cells. - View Dependent Claims (26, 27, 28, 29)
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30. The method of operating a spatial light modulator array comprising the steps of:
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arranging a plurality of individual solid state light emitting elements in a unitary structure; and focusing light from said elements onto a spatial light modulator device operable to modulate said light impacting a surface of said device, wherein said device includes a plurality of individually controlled cells. - View Dependent Claims (31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41)
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Specification