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Patent Searching and Data


Title:
WAVELENGTH-CONVERSION MEMBER AND LIGHT-EMITTING DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/184216
Kind Code:
A1
Abstract:
Provided is a wavelength-conversion member with which leakage of excitation light in the ultraviolet region to the outside can be suppressed readily. This wavelength-conversion member is used to convert excitation light having a wavelength of 250-280 nm to visible light, and is characterized by containing a glass matrix and a phosphor dispersed in the glass matrix, and in that the glass matrix has a total light transmission at the wavelengths of 250-280 nm of 0.1-80% at a thickness of 1 mm.

Inventors:
SHIMIZU HIROYUKI (JP)
ASANO HIDEKI (JP)
UEDA NAOKI (JP)
Application Number:
PCT/JP2020/008261
Publication Date:
September 17, 2020
Filing Date:
February 28, 2020
Export Citation:
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Assignee:
NIPPON ELECTRIC GLASS CO (JP)
International Classes:
C03C3/072; C03C3/091; C03C3/093; C03C14/00; C09K11/80; G02B5/20; H01L33/50
Domestic Patent References:
WO2018003454A12018-01-04
WO2018159268A12018-09-07
Foreign References:
JP2001089185A2001-04-03
JPH0656467A1994-03-01
JP2019020198A2019-02-07
JP2015199640A2015-11-12
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