Invention Grant
- Patent Title: Light-emitting device
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Application No.: US16296803Application Date: 2019-03-08
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Publication No.: US10903401B2Publication Date: 2021-01-26
- Inventor: Shoji Hosokawa , Kazuya Nishimata , Tomokazu Yoshida
- Applicant: NICHIA CORPORATION
- Applicant Address: JP Anan
- Assignee: NICHIA CORPORATION
- Current Assignee: NICHIA CORPORATION
- Current Assignee Address: JP Anan
- Agency: Hunton Andrews Kurth LLP
- Priority: JP2017-004424 20170113
- Main IPC: H01L33/50
- IPC: H01L33/50 ; G02F1/13357 ; C09K11/77 ; C09K11/08 ; C09K11/64 ; H01L33/32 ; H01L33/48

Abstract:
Provided is a light-emitting device including a light-emitting element having a peak emission wavelength in a range of from 400 nm to 470 nm, and a fluorescent member including a first fluorescent material including an aluminate that contains Mg, Mn, and at least one alkali earth metal selected from the group consisting of Ba, Sr, and Ca, a second fluorescent material having a different composition from the first fluorescent material, and a third fluorescent material. The first, second and third fluorescent materials have a peak emission wavelength in a range of from 510 nm to 525 nm, from 510 nm to 550 nm, and from 620 nm to 670 nm, respectively.
Public/Granted literature
- US20190207064A1 LIGHT-EMITTING DEVICE Public/Granted day:2019-07-04
Information query
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