Method and system for dynamic gradient light filtering
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United States of America Patent
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Apr 14, 2009
Grant Date -
Mar 29, 2007
app pub date -
Sep 27, 2005
filing date -
Sep 27, 2005
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A light filter for use in an optical system for displaying image. The light filter comprising, a substantially transparent substrate and an optical coating applied to the substrate. The optical coating is applied to the substrate such that a percentage of light being directed through the filter that is attenuated varies based on a position on the substrate on which the light impinges.
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