US Patent 7303286 Projection display device
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Patent Inventor Names
Jun Ogawa0
Naofumi Ishikura0
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Patent abstract
In a projection display device that is provided with a relay lens for converting flux that is emitted from a light source to a parallel flux for illuminating an image display element (DMD), and a total internal reflection prism for both directing flux that is emitted from the relay lens to the DMD and directing flux that is reflected by the DMD toward a projection lens, the relay lens is unified with the prism as a lens-integral prism by bonding the relay lens to the total internal reflection surface of the prism.
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US Patent 07303286 Projection display device US Patent 7303286 Projection display device
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Patent Number
073032860
Patent Number
73032860
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Patent Jurisdiction
Patent Number
073032860
Date of Patent
December 4, 2007
0Patent Application Number
116490720
Date Filed
January 3, 2007
0Official Website
Patent Primary Examiner
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US Patent 07303286 Projection display device
Infobox
Is a
Patent jurisdiction
Patent number
07303286
Date of patent
December 4, 2007
Patent application number
11649072
Date Filed
January 3, 2007
Patent primary examiner
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