Invention Grant
- Patent Title: Light emitting device
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Application No.: US15479854Application Date: 2017-04-05
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Publication No.: US10096751B2Publication Date: 2018-10-09
- Inventor: Tadaaki Ikeda , Takuya Nakabayashi
- Applicant: NICHIA CORPORATION
- Applicant Address: JP Anan-shi
- Assignee: NICHIA CORPORATION
- Current Assignee: NICHIA CORPORATION
- Current Assignee Address: JP Anan-shi
- Agency: Hunton Andrews Kurth LLP
- Priority: JP2016-076811 20160406
- Main IPC: H01L27/15
- IPC: H01L27/15 ; H01L33/50 ; H01L33/56 ; H01L33/60 ; C09K11/61 ; C09K11/77 ; C09K11/08 ; C09K11/02 ; C08K3/34

Abstract:
A light emitting device is provided. The light emitting device includes a light emitting element, which emits blue light, and a light transmissive member having a first principal face bonded to the light emitting element and a second principal face opposite the first principal face. The light transmissive member has a light transmissive base material and wavelength conversion substances, which are contained in the base material and which absorb the light from the light emitting element and emit light. The wavelength conversion substances are localized in the base material towards the first principal face, and include a first phosphor which emits green to yellow light and a second phosphor which emits red light. The first phosphor is more localized towards the first principal face than the second phosphor. The second phosphor is a manganese-activated fluoride phosphor.
Public/Granted literature
- US20170294561A1 LIGHT EMITTING DEVICE Public/Granted day:2017-10-12
Information query
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