US Patent 7370973 Displaying optical system and image projection apparatus
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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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US Patent 07370973 Displaying optical system and image projection apparatus US Patent 7370973 Displaying optical system and image projection apparatus
Infobox
Patent Number
0737097300
Patent Number
737097300
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Official Website
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Infobox
Is a
Patent Jurisdiction
Patent Number
073709730
Date of Patent
May 13, 2008
0Patent Application Number
111926060
Date Filed
July 29, 2005
0Official Website
Patent Primary Examiner
Edits on 23 Sep, 2022
Golden AI
Infobox
Is a
Patent Jurisdiction
Patent Number
073709730
Date of Patent
May 13, 2008
0Patent Application Number
111926060
Date Filed
July 29, 2005
0Official Website
Patent Primary Examiner
Edits on 17 Jun, 2022
Golden AI
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US Patent 07370973 Displaying optical system and image projection apparatus
Infobox
Is a
Patent jurisdiction
Patent number
07370973
Date of patent
May 13, 2008
Patent application number
11192606
Date Filed
July 29, 2005
Patent primary examiner
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