Light emitting device

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 8878423
SERIAL NO

12982604

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Abstract

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Disclosed is a light-emitting device, including an LED light source and a light diffusion element. The light diffusion element, covering at least a part of the LED light source, is composed of a first polymer, a second polymer, or a blend of them. The first polymer has a larger crystal diameter than that of the second polymer. The first polymer is made of polypropylene or ethylene-propylene copolymer. The second polymer is made of polyethylene, polypropylene, or ethylene-propylene copolymer. A blend of certain ratios of the first and second polymer gives rise of an excellent material that has improved light diffusion. This material can be widely adopted to current light fixtures for its evenly distributed lighting and great brightness.

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Patent Owner(s)

Patent OwnerAddress
INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTECHUTUNG HSINCHU 310401

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chang, Pei-Ying Taoyuan County, TW 2 36
Huang, Shi-Ing Miaoli County, TW 11 31
Huang, Tien-Fu Hsinchu County, TW 22 295
Shiao, Chen-Dao Hsinchu, TW 5 211

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