US Patent 7889413 Field generating nanoparticles doped in light valves
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Patent abstract
The present invention provides a method for automatically activating an optical light valve. The method includes providing a photorefractive cell having a birefringent medium which is doped with nanoparticles and transmitting light through the photorefractive cell to create an electric field in the photorefractive cell such that the alignment state of the birefringent medium and nanoparticles is changed to thereby reduce the intensity of the light being transmitted therethrough, wherein the intensity of light is reduces without an external power source.
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US Patent 07889413 Field generating nanoparticles doped in light valves US Patent 7889413 Field generating nanoparticles doped in light valves
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Patent Number
0788941300
Patent Number
788941300
Edits on 6 Apr, 2023
Golden AI
Infobox
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Patent Jurisdiction
Patent Number
078894130
Date of Patent
February 15, 2011
0Patent Application Number
124839340
Date Filed
June 12, 2009
0Official Website
Patent Primary Examiner
Edits on 28 Sep, 2022
Golden AI
Infobox
Is a
Patent Jurisdiction
Patent Number
078894130
Date of Patent
February 15, 2011
0Patent Application Number
124839340
Date Filed
June 12, 2009
0Official Website
Patent Primary Examiner
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US Patent 07889413 Field generating nanoparticles doped in light valves
Infobox
Is a
Patent jurisdiction
Patent number
07889413
Date of patent
February 15, 2011
Patent application number
12483934
Date Filed
June 12, 2009
Patent primary examiner
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