Title:
WAVELENGTH CONVERSION MEMBER AND LIGHT-EMITTING DEVICE USING SAME
Document Type and Number:
WIPO Patent Application WO/2019/176622
Kind Code:
A1
Abstract:
Provided are a wavelength conversion member whereby a reduction in light emission intensity over time or melting of a constituent material can be suppressed in the case of irradiation by high-power excitation light, a method for manufacturing the wavelength conversion member, and a light-emitting device in which the wavelength conversion member is used. A wavelength conversion member 10 in which phosphor particles 2 and heat-conductive particles 3 are dispersed in an inorganic binder 1, the wavelength conversion member 10 being characterized in that the refractive index difference of the inorganic binder 1 and the heat-conductive particles 3 is 0.2 or less, and the volume ratio of the content of each of the inorganic binder 1 and the heat-conductive particles 3 is 80:20 to more than 40:less than 60.
Inventors:
FURUYAMA TADAHITO (JP)
Application Number:
PCT/JP2019/008470
Publication Date:
September 19, 2019
Filing Date:
March 04, 2019
Export Citation:
Assignee:
NIPPON ELECTRIC GLASS CO (JP)
International Classes:
G02B5/20; H01L33/50; H01S5/0239
Domestic Patent References:
| WO2017170609A1 | 2017-10-05 |
Foreign References:
| JP2014241431A | 2014-12-25 | |||
| JP2018035055A | 2018-03-08 | |||
| JP2016225581A | 2016-12-28 | |||
| JP2016021582A | 2016-02-04 |
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