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

LIGHT-EMITTING DEVICE AND SURFACE LIGHT SOURCE DEVICE USING THE SAME
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
0/0