Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
May 13, 2008
Patent Application Number
11192606
Date Filed
July 29, 2005
Patent Primary Examiner
Patent abstract
A compact displaying optical system capable of reducing a speckle noise and a loss of light amount is disclosed. The displaying optical system which projects images using coherent light, comprises a light source which emits the light; and a polarization control unit. The polarization control unit changes the polarization state of the light emitted from the light source temporally.
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