US Patent 7637639 LED emitter with radial prismatic light diverter
Patent 7637639 was granted and assigned to 3M on December, 2009 by the United States Patent and Trademark Office.
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Patent abstract
An optical assembly includes a light emitting diode (LED) and a structured surface. The structured surface has a plurality of prismatic structures arranged radially with respect to a reference point, and is disposed relative to the LED such that the reference point is substantially aligned with a light emission axis of the LED. Arrays of such assemblies and backlights and displays including same are also disclosed.
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US Patent 07637639 LED emitter with radial prismatic light diverter US Patent 7637639 LED emitter with radial prismatic light diverter
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Patent Number
0763763900
Patent Number
763763900
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Infobox
Is a
Current Assignee
0
Patent Jurisdiction
Patent Number
076376390
Date of Patent
December 29, 2009
0Patent Application Number
112752880
Date Filed
December 21, 2005
0Official Website
Patent Primary Examiner
Edits on 27 Sep, 2022
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Infobox
Is a
Current Assignee
0
Patent Jurisdiction
Patent Number
076376390
Date of Patent
December 29, 2009
0Patent Application Number
112752880
Date Filed
December 21, 2005
0Official Website
Patent Primary Examiner
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US Patent 07637639 LED emitter with radial prismatic light diverter
Infobox
Is a
Current assignee
Patent jurisdiction
Patent number
07637639
Date of patent
December 29, 2009
Patent application number
11275288
Date Filed
December 21, 2005
Patent primary examiner
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