Wavelength conversion element, light source device, and projector

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United States of America Patent

PATENT NO 10101645
APP PUB NO 20180052386A1
SERIAL NO

15667905

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Abstract

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A wavelength conversion element includes a base material and a phosphor layer that contains a phosphor emitting fluorescence upon incidence of excitation light and is provided on the base material, in which the phosphor layer includes a first surface on which excitation light (blue light) is incident and a second surface facing the base material, and a plurality of regions with different absorption coefficients of the excitation light between the first surface and the second surface.

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Patent Owner(s)

  • SEIKO EPSON CORPORATION

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Arakawa, Osamu Shiojiri, JP 22 89
Hashizume, Toshiaki Okaya, JP 103 997
Shimizu, Tetsuo Matsumoto, JP 204 2392
Takagi, Kunihiko Okaya, JP 91 2040

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