Light emitting device packages using light scattering particles of different size

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11114594
APP PUB NO 20090050911A1
SERIAL NO

11895573

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Abstract

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A radiation emitting device comprising light scattering particles of different sizes that at least partially surround an emitter, improving the spatial color mixing and color uniformity of the device. Multiple sizes of light scattering particles are dispersed in a medium to at least partially surround a single- or multiple-chip polychromatic emitter package. The different sizes of light scattering particles interact with corresponding wavelength ranges of emitted radiation. Thus, radiation emitted over multiple wavelength ranges or sub-ranges can be efficiently scattered to eliminate (or intentionally create) spatially non-uniform color patterns in the output beam.

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Patent Owner(s)

Patent OwnerAddress
CREELED INC4001 E HWY 54 SUITE 2000 DURHAM NC 27709

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chakraborty, Arpan Goleta, US 79 4386

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