OPTPO-MECHANICAL FILTER FOR BLENDING OF IMAGES FROM A DIGITAL PROJECTOR
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United States of America Patent
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app pub date -
Oct 10, 2007
filing date -
Jul 27, 2005
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Abandoned
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Abstract
A filter mounting apparatus for use with an optical filter placed between a projector lens and screen. The filter mounting apparatus comprises a metallic disk connected to the projector lens, and an assembly magnetically connected to the metallic disk for mounting the optical filter a predetermined distance from the projector lens.
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