Title:
LIGHT-EMITTING DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/142440
Kind Code:
A1
Abstract:
The present invention comprises: a substrate 40 in which a first arrangement area 41 and a second arrangement area 42 are defined on a main surface; a plurality of blue-light-emitting elements 10 which are arranged on the main surface of the substrate 40; and a fluorescent body sheet 30 containing a fluorescent body which emits excitation light excited by light emitted by the plurality of blue-light-emitting elements 10, and which is disposed above the plurality of blue-light-emitting elements 60. The plurality of blue-light-emitting elements 10 include: first blue-light-emitting elements 11 which are arranged in the first arrangement area 41, and which emit first emission light which has a first wavelength as the peak wavelength of the light emission spectrum; and second blue-light-emitting elements 12 which are arranged in the second arrangement area 42, and which emit second emission light which has, as the peak wavelength of the light emission spectrum, a second wavelength which is longer than the first wavelength by at least 10 nm.
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Inventors:
YOKOTA TSUTOMU (JP)
UENO TAKAYA (JP)
HOSHINO MASANORI (JP)
TANAKA YOSHINORI (JP)
MUROFUSHI HITOSHI (JP)
UENO TAKAYA (JP)
HOSHINO MASANORI (JP)
TANAKA YOSHINORI (JP)
MUROFUSHI HITOSHI (JP)
Application Number:
PCT/JP2017/003276
Publication Date:
August 09, 2018
Filing Date:
January 31, 2017
Export Citation:
Assignee:
SANKEN ELECTRIC CO LTD (JP)
International Classes:
H01L33/50
Domestic Patent References:
| WO2016159141A1 | 2016-10-06 |
Foreign References:
| JP2016219519A | 2016-12-22 | |||
| JP2016162860A | 2016-09-05 | |||
| JP2016127145A | 2016-07-11 | |||
| JP2016129229A | 2016-07-14 | |||
| JP2013045839A | 2013-03-04 |
Attorney, Agent or Firm:
MIYOSHI Hidekazu et al. (JP)
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