Login| Sign Up| Help| Contact|

Patent Searching and Data


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.

Inventors:
YOKOTA Tsutomu (6-3, Kitano 3-chome, Niiza-sh, Saitama 66, 〒3528666, JP)
UENO Takaya (6-3, Kitano 3-chome, Niiza-sh, Saitama 66, 〒3528666, JP)
HOSHINO Masanori (6-3, Kitano 3-chome, Niiza-sh, Saitama 66, 〒3528666, JP)
TANAKA Yoshinori (6-3, Kitano 3-chome, Niiza-sh, Saitama 66, 〒3528666, JP)
MUROFUSHI Hitoshi (6-3, Kitano 3-chome, Niiza-sh, Saitama 66, 〒3528666, JP)
Application Number:
JP2017/003276
Publication Date:
August 09, 2018
Filing Date:
January 31, 2017
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
SANKEN ELECTRIC CO., LTD. (6-3 Kitano 3-chome, Niiza-shi Saitama, 66, 〒3528666, JP)
International Classes:
H01L33/50
Domestic Patent References:
WO2016159141A12016-10-06
Foreign References:
JP2016219519A2016-12-22
JP2016162860A2016-09-05
JP2016127145A2016-07-11
JP2016129229A2016-07-14
JP2013045839A2013-03-04
Attorney, Agent or Firm:
MIYOSHI Hidekazu et al. (Toranomon Kotohira Tower, 2-8 Toranomon 1-chome, Minato-k, Tokyo 01, 〒1050001, JP)
Download PDF:



 
Previous Patent: SHOWCASE

Next Patent: AXIAL GAP ROTARY ELECTRIC MACHINE