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Patent Searching and Data


Title:
LIGHT EMITTING DEVICE AND ILLUMINATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/107281
Kind Code:
A1
Abstract:
This light emitting device is provided with multiple light-emitting elements, and a first phosphor and a second phosphor. The multiple light-emitting elements have a peak wavelength in the wavelength region 360-430 nm, and emit 340-450 nm light. In response to light emitted by the multiple light emitting elements, the first phosphor is excited and emits light with a first peak wavelength in the wavelength region 435-480 nm. In response to the light emitted by the multiple light emitting elements, the second phosphor is excited and emits light with a second peak wavelength in the wavelength region 490-520 nm. There are multiple light intensity peak wavelengths in the range 360-430nm.

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:
JP2018/043244
Publication Date:
June 06, 2019
Filing Date:
November 22, 2018
Export Citation:
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Assignee:
KYOCERA CORPORATION (6 Takeda Tobadono-cho, Fushimi-ku Kyoto-sh, Kyoto 01, 〒6128501, JP)
International Classes:
H01L33/50; F21S2/00; F21V9/38; F21Y103/10; F21Y115/10
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