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1. 发明授权

US08178892B2 LED chip having micro-lens structure 有权
标题翻译： LED芯片具有微透镜结构
公开(公告)号：US08178892B2
公开(公告)日：2012-05-15
申请号：US11826469
申请日：2007-07-16
申请人： Tien-Fu Huang , Shih-Hao Hua , Kuo-Chang Hu , Che-wei Su
发明人： Tien-Fu Huang , Shih-Hao Hua , Kuo-Chang Hu , Che-wei Su
IPC分类号： H01L33/62
CPC分类号： H01L33/20
摘要： A light-emitting diode (LED) chip having a micro-lens structure includes a light-emitting structure and a light guide lens. The light-emitting structure emits a light from a light-emitting surface upon being applied with a current, and the light guide lens is stacked on the light-emitting surface and used for emitting the light from a light guide surface of the light guide lens. The light guide surface has an annular ridge portion and a scatter region, such that the lights close to the central optical axis of the light-emitting surface (the region having the maximum light-emitting intensity) are deflected in a direction away from the central optical axis, and the lights far away from the central optical axis are deflected towards the central optical axis, so as to obtain a light with a uniform overall optical intensity.
摘要翻译：具有微透镜结构的发光二极管（LED）芯片包括发光结构和导光透镜。发光结构在施加电流时从发光面发出光，导光透镜被堆叠在发光面上，用于从导光透镜的导光面发射光。导光面具有环状的脊部和散射区域，使得靠近发光面的中心光轴（具有最大发光强度的区域）的光沿远离中心的方向偏转并且远离中心光轴的光被偏转到中心光轴，以获得具有均匀的整体光强度的光。

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