High efficiency diffusion lighting coverings

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United States of America Patent

PATENT NO 11719411
APP PUB NO 20200363036A1
SERIAL NO

16944371

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Abstract

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The invention relates to high efficiency diffusion lighting coverings useful in LED lighting applications. The diffusing lighting coverings are made of organic diffusing particles homogeneously dispersed in a transparent polymer matrix. The primary organic diffusing particles are refractive index mis-matched to the matrix polymer. The refractive index contrast between the polymer matrix and diffusion particles, and particle size are selected to provide a high efficiency (minimized particle loading). The high efficiency diffusion coverings provides excellent light diffusion, high hiding properties and high light transmission. The secondary diffusion particles may optionally be added to further improve selected target properties of the covering. Nano-sized ZnO inorganic particles may also function as diffusion particles and optical brighteners as well UV stabilizers. Articles made of this translucent composition are useful in commercial and residential lighting, motor vehicle illumination (lights, panels), street lighting, displays and signs, desktop monitors, and LCD/LED TVs.

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Patent Owner(s)

  • TRINSEO EUROPE GMBH

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Burchill, Michael T Langhorne, US 29 236
Cromer, Brian M Royersford, US 6 0
Ge, Jiaxin Jason Lower Providence, US 14 57
Hall, Gary A Oaklyn, US 8 108
Mehlmann, Florence Berwyn, US 31 49

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