- 专利标题: Light emitting device
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申请号: US16167471申请日: 2018-10-22
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公开(公告)号: US10559725B2公开(公告)日: 2020-02-11
- 发明人: Kenji Asai
- 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: JP2016-104853 20160526; JP2017-092899 20170509
- 主分类号: H01L33/50
- IPC分类号: H01L33/50 ; C09K11/08 ; C09K11/77 ; H01L33/48 ; H01L33/52
摘要:
A light emitting device includes a light emitting element having a peak emission wavelength of 410 nm to 440 nm and a phosphor member. The phosphor member includes a first phosphor having a peak emission wavelength of 430 nm to 500 nm and containing an alkaline-earth phosphate, a second phosphor having a peak emission wavelength of 440 nm to 550 nm and containing at least one of an alkaline-earth aluminate and a silicate containing Ca, Mg, and Cl, a third phosphor having a peak emission wavelength of 500 nm to 600 nm and containing a rare-earth aluminate, a fourth phosphor having a peak emission wavelength of 610 nm to 650 nm and containing a silicon nitride containing Al and at least one of Sr and Ca, and a fifth phosphor having a peak emission wavelength of 650 nm to 670 nm and containing a fluorogermanate.
公开/授权文献
- US20190067531A1 LIGHT EMITTING DEVICE 公开/授权日:2019-02-28
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