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Light-emitting device
专利权人:
NICHIA CORPORATION
发明人:
Hiroaki Ukawa,Ryuichi Nakagami
申请号:
US16668153
公开号:
US10806809B2
申请日:
2019.10.30
申请国别(地区):
US
年份:
2020
代理人:
摘要:
A light-emitting device includes a light-emitting element with a peak emission wavelength in a range of 400 nm to 410 nm and a fluorescent member that contains a first phosphor with a peak emission wavelength in a range of 440 nm to 470 nm containing a Eu-activated alkaline-earth phosphate that contains Cl in a composition, a second phosphor with a peak emission wavelength in a range of 500 nm to 530 nm containing a Eu-activated halogen-containing alkaline-earth silicate, a third phosphor with a peak emission wavelength in a range of 530 nm to 600 nm containing a Ce-activated rare-earth aluminate, and a fourth phosphor with a peak emission wavelength in a range of 600 nm to 660 nm containing a Eu-activated silicon nitride containing Al and at least one of Sr and Ca in a composition.
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/

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