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Title:
LIGHT-EMITTING DEVICE AND ILLUMINATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/106864
Kind Code:
A1
Abstract:
This light-emitting device is provided with: a light-emitting element which has a light-emitting unit that has a first peak wavelength in the range 360-430 nm and emits first irradiation; and a coating material which is positioned on the light-emitting unit of the light-emitting element and which contains a phosphor that has a second peak wavelength in the range 430-470 nm and emits second irradiation. The light emitting device emits external irradiation which comprises a peak region that includes the first peak wavelength and the second peak wavelength, and a long wavelength region in which the light intensity continuously decreases from the second peak wavelength to the wavelength 750 nm.

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Inventors:
KATOU, Hidetaka (6 Takeda Tobadono-cho, Fushimi-ku, Kyoto-sh, Kyoto 01, 〒6128501, JP)
KUSANO, Tamio (6 Takeda Tobadono-cho, Fushimi-ku, Kyoto-sh, Kyoto 01, 〒6128501, JP)
Application Number:
JP2018/020285
Publication Date:
June 06, 2019
Filing Date:
May 28, 2018
Export Citation:
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Assignee:
KYOCERA CORPORATION (6 Takeda Tobadono-cho, Fushimi-ku Kyoto-sh, Kyoto 01, 〒6128501, JP)
International Classes:
F21S2/00; H01L33/50; F21Y103/10; F21Y115/10
Domestic Patent References:
WO2017065766A12017-04-20
WO2017069206A12017-04-27
Foreign References:
JP2013072041A2013-04-22
JP2017175193A2017-09-28
JP2003152229A2003-05-23
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