发明申请
US20120305973A1 LIGHT-EMITTING DEVICE AND SURFACE LIGHT SOURCE DEVICE USING THE SAME
审中-公开
发光装置和使用其的表面光源装置
- 专利标题: LIGHT-EMITTING DEVICE AND SURFACE LIGHT SOURCE DEVICE USING THE SAME
- 专利标题(中): 发光装置和使用其的表面光源装置
-
申请号: US13522913申请日: 2011-01-25
-
公开(公告)号: US20120305973A1公开(公告)日: 2012-12-06
- 发明人: Yoshihiko Chosa , Takashi Kuwaharada , Kiyoshi Fujihara , Kenichi Koya
- 申请人: Yoshihiko Chosa , Takashi Kuwaharada , Kiyoshi Fujihara , Kenichi Koya
- 优先权: JP2010-025096 20100208
- 国际申请: PCT/JP2011/000388 WO 20110125
- 主分类号: H01L33/60
- IPC分类号: H01L33/60
摘要:
To provide a light emitting device which emits high-luminance, uniform white light with reduced variations in luminance, a light emitting element 101 is mounted on a substrate 105 and covered with a wavelength conversion layer 106 of uniform thickness, and then a light scattering layer 107 made of a translucent resin containing a light reflecting material is formed. As the light scattering layer 107, a high density region 109 in which a density of the light reflecting material is high is formed immediately above a central part of a light emitting surface of the light emitting element 101, and a low density region 110 in which the density of the light reflecting material is low is formed around a region immediately above the central part of the light emitting surface of the light emitting element. A translucent resin layer 108 is formed on the light scattering layer 107.
信息查询
IPC分类: