- 专利标题: Light-emitting device
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申请号: US16668153申请日: 2019-10-30
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公开(公告)号: US10806809B2公开(公告)日: 2020-10-20
- 发明人: Hiroaki Ukawa , Ryuichi Nakagami
- 申请人: NICHIA CORPORATION
- 申请人地址: JP Anan-shi
- 专利权人: NICHIA CORPORATION
- 当前专利权人: NICHIA CORPORATION
- 当前专利权人地址: JP Anan-shi
- 代理机构: Hunton Andrews Kurth LLP
- 优先权: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@502cff3
- 主分类号: A61L2/08
- IPC分类号: A61L2/08 ; H01L33/50 ; H01L33/60 ; H01L33/64 ; C09K11/77 ; C09K11/08 ; A61L2/26 ; A61L9/18 ; F21K9/00 ; H01L33/62
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.
公开/授权文献
- US20200061222A1 METHOD FOR MANUFACTURING LIGHT-EMITTING DEVICE 公开/授权日:2020-02-27