Title:
WAVELENGTH CONVERSION MEMBER, LIGHT-EMITTING ELEMENT, AND LIGHT-EMITTING DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/132212
Kind Code:
A1
Abstract:
The present invention provides a wavelength conversion member, a light-emitting element, and a light-emitting device, the wavelength conversion member having high heat dissipation performance and capable of suppressing a decrease in light emission intensity caused by an increase in the output of an excitation light source. A wavelength conversion member 10 is provided with a matrix 2, and an inorganic phosphor 1 included in the matrix 2. The wavelength conversion member 10 has a relative density of 90% or more, a thermal conductivity of 10 W/m∙K or more, and a quantum efficiency of 50% or more.
Inventors:
FUKUMOTO SHOTARO (JP)
FUJITA SHUNSUKE (JP)
FUJITA SHUNSUKE (JP)
Application Number:
PCT/JP2020/047850
Publication Date:
July 01, 2021
Filing Date:
December 22, 2020
Export Citation:
Assignee:
NIPPON ELECTRIC GLASS CO (JP)
International Classes:
G02B5/20
Domestic Patent References:
| WO2019078299A1 | 2019-04-25 |
Foreign References:
| JP2016204563A | 2016-12-08 | |||
| JP2016204561A | 2016-12-08 | |||
| JP2012211229A | 2012-11-01 | |||
| JP2018180271A | 2018-11-15 | |||
| JP2012190555A | 2012-10-04 |
Other References:
See also references of EP 4083666A4
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