System and method for uniformity of illumination for tungsten light
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United States of America Patent
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Oct 27, 1992
Issued Date -
N/A
app pub date -
Mar 17, 1992
filing date -
Dec 31, 1990
priority date (Note) -
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status (Latency Note)
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Abstract
There is disclosed an optic system for illuminating a DMD array in a manner for efficient light transfer to an imaging lens. The DMD is positioned between the light source and the lens aperture. An anamorphic optic path is arranged such that the vertical component of the light is compressed to match the physical shape of the DMD array. In this manner the horizontal light component is focused directly on the aperture while the vertical light component is focused optically ahead of the aperture. Together the two light components entirely fill the lens aperture while providing more light intensity at the DMD.
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