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US Patent 7091661 Phosphor based light sources having a reflective polarizer

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Patent
Patent
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Patent attributes

Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
0
Patent Number
70916610
Patent Inventor Names
Michael F. Weber0
Andrew J. Ouderkirk0
Date of Patent
August 15, 2006
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Patent Application Number
107627270
Date Filed
January 20, 2004
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Patent Citations Received
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US Patent 12066173 Light emitting device having improved illumination and manufacturing flexibility
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US Patent 11662067 LED lamps with improved quality of light
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US Patent 11861941 Eye camera systems with polarized light
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US Patent 11876042 Omnidirectional flexible light emitting device
0
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US Patent 11889987 Wireless imaging system
0
Patent Primary Examiner
Joseph Williams
Joseph Williams
0
Patent abstract

A LED package includes an LED that emits excitation light and an optically transparent body. A layer of phosphor material is positioned to receive the excitation light and is disposed on or in the optically transparent body. The phosphor material emits visible light when illuminated with the excitation light. A reflective polarizer layer is disposed on or in the optically transparent body and is positioned to receive the emitted visible light.

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