Invention Grant
- Patent Title: Light emitting device exhibiting excellent heat resistance and good color reproducibility through fluorescent material arrangement
- Patent Title (中): 通过荧光材料配置显示优异的耐热性和良好的色彩再现性的发光器件
-
Application No.: US14581015Application Date: 2014-12-23
-
Publication No.: US09401462B2Publication Date: 2016-07-26
- Inventor: Yuji Akazawa
- Applicant: Nichia Corporation
- Applicant Address: JP Anan-Shi
- Assignee: NICHIA CORPORATION
- Current Assignee: NICHIA CORPORATION
- Current Assignee Address: JP Anan-Shi
- Agency: Foley & Lardner LLP
- Priority: JP2013-272688 20131227
- Main IPC: H01L33/00
- IPC: H01L33/00 ; H01L33/50 ; H01L33/52
Abstract:
A light emitting device comprising: a base; a light emitting element arranged on a surface of the base; a first resin layer arranged to surround a side portion of the light emitting element and to be spaced apart from the side portion; and a second resin layer arranged on the surface of the base, the second resin layer being present at least on a top of the light emitting element, on a top of the first resin layer, and in an area between the light emitting element and the first resin layer, wherein the first resin layer comprises a light transmissive resin and a first fluorescent material, wherein the second resin layer comprises a light transmissive resin and a second fluorescent material, and wherein the second fluorescent material exhibits higher heat resistance than that of the first fluorescent material.
Public/Granted literature
- US20150189703A1 LIGHT EMITTING DEVICE Public/Granted day:2015-07-02
Information query
IPC分类:
