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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 (JP)
KUSANO TAMIO (JP)
Application Number:
PCT/JP2018/043244
Publication Date:
June 06, 2019
Filing Date:
November 22, 2018
Export Citation:
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Assignee:
KYOCERA CORP (JP)
International Classes:
H01L33/50; F21S2/00; F21V9/38; F21Y103/10; F21Y115/10
Domestic Patent References:
WO2011004796A12011-01-13
WO2017164214A12017-09-28
WO2017135255A12017-08-10
WO2017069206A12017-04-27
WO2014054290A12014-04-10
WO2010041717A12010-04-15
Foreign References:
JP2012221838A2012-11-12
CN206419744U2017-08-18
JP2007524726A2007-08-30
JP2017120200A2017-07-06
JP2016072521A2016-05-09
JP2017152666A2017-08-31
JP2015060921A2015-03-30
US20130002167A12013-01-03
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