Fluorescence light emitting element comprising a phosphor layer including phosphors and a binder made of an inorganic material

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United States of America Patent

PATENT NO 9475983
APP PUB NO 20150116671A1
SERIAL NO

14525363

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Abstract

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A fluorescence light emitting element includes a phosphor layer that includes phosphors and a binder made of an inorganic material. A thermal conductivity B of the binder is larger than 1.88 times a thermal conductivity A of the phosphors. When the volume of the phosphors included in the phosphor layer is X and the volume of the binder included in the phosphor layer is Y, a relationship of X/Y>1/2 is satisfied.

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Patent Owner(s)

  • SEIKO EPSON CORPORATION

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hashizume, Toshiaki Okaya, JP 103 997
Kuroi, Kiyoshi Nagahama, JP 23 162

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