Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
William C. Sweatt0
Date of Patent
May 11, 2010
0Patent Application Number
120282700
Date Filed
February 8, 2008
0Patent Primary Examiner
Patent abstract
An apparatus and method for improving the contrast between incident projected light and ambient light reflected from a projection screen are described. The efficiency of the projection screen for reflection of the projected light remains high, while permitting the projection screen to be utilized in a brightly lighted room. Light power requirements from the projection system utilized may be reduced.
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