Phosphor based light sources having a reflective polarizer

Details Phosphor based light sources having a reflective polarizer Phosphor based light sources having a reflective polarizer

2006-08-15

2006-08-15

Williams, Joseph (Department: 2879)

Electric lamp and discharge devices

With luminescent solid or liquid material

Solid-state type

C313S112000

Reexamination Certificate

active

07091661

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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