Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Hitoshi Shimizu0
Date of Patent
July 8, 2008
Patent Application Number
11114003
Date Filed
April 26, 2005
Patent Primary Examiner
Patent abstract
A projection image display apparatus is equipped with a light shielding member for partially shielding the illumination light from the illuminating optical system so as to reduce the image brightness in a region where the intensity of the reflected light reflected between the on-light and off-light becomes strong, and making the intensity of the illumination light emitted to the respective mirror elements uneven.
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