Title:
WAVELENGTH CONVERSION MEMBER, LIGHT-EMITTING DEVICE, AND METHOD FOR MANUFACTURING WAVELENGTH CONVERSION MEMBER
Document Type and Number:
WIPO Patent Application WO/2018/083903
Kind Code:
A1
Abstract:
Provided is a wavelength conversion member whereby light extraction efficiency can be increased and light emission efficiency can be enhanced. A wavelength conversion member 10 characterized by being provided with: a phosphor layer 1 including a glass matrix and an inorganic phosphor powder dispersed in the glass matrix; a glass layer 2 having a refractive index equal to or lower than the refractive index of the inorganic phosphor powder, the glass layer 2 being disposed on the surface of the phosphor layer 1; and a fine uneven layer 3 having a refractive index equal to or lower than the refractive index of the glass layer 2, the fine uneven layer 3 being disposed on the surface of the glass layer 2.
Inventors:
FURUYAMA TADAHITO (JP)
FUJITA SHUNSUKE (JP)
FUJITA SHUNSUKE (JP)
Application Number:
PCT/JP2017/033879
Publication Date:
May 11, 2018
Filing Date:
September 20, 2017
Export Citation:
Assignee:
NIPPON ELECTRIC GLASS CO (JP)
International Classes:
G02B5/20; C03B19/00; C03B19/06; F21V7/22; F21V9/00; G03B21/14; H01L33/50; F21Y115/10; F21Y115/30; G02B1/111
Domestic Patent References:
| WO2013018494A1 | 2013-02-07 | |||
| WO2016125611A1 | 2016-08-11 |
Foreign References:
| JP2014031488A | 2014-02-20 | |||
| JP2016170357A | 2016-09-23 | |||
| JP2012145748A | 2012-08-02 |
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