发明授权
- 专利标题: Light-emitting diode packaging structure of low angular correlated color temperature deviation
- 专利标题(中): 发光二极管封装结构的低角度相关色温偏差
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申请号: US13491255申请日: 2012-06-07
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公开(公告)号: US08552456B1公开(公告)日: 2013-10-08
- 发明人: Ching-Cherng Sun , Ching-Yi Chen , Chih-Yu Chiu
- 申请人: Ching-Cherng Sun , Ching-Yi Chen , Chih-Yu Chiu
- 申请人地址: TW Jhongli
- 专利权人: National Central University
- 当前专利权人: National Central University
- 当前专利权人地址: TW Jhongli
- 代理机构: Stites & Harbison PLLC
- 代理商 Juan Carlos A. Marquez
- 优先权: TW101108723A 20120314
- 主分类号: H01L33/00
- IPC分类号: H01L33/00
摘要:
A light-emitting diode (LED) packaging structure having low angular correlated color temperature deviation includes: a substrate, a LED chip, a phosphor body, and a transparent lens. The LED chip is disposed on the substrate, and the phosphor body includes a hemisphere body and an extension part extended from the bottom of the hemisphere body. The phosphor body is disposed on the substrate and covers the LED chip. Besides, the transparent lens is disposed outside the phosphor body to cover the phosphor body to increase light extraction efficiency. With the implementation of the present invention, the setup of the extension part makes a longer vertical distance between the LED chip and the top of the phosphor body, so that the light in the normal direction of the LED chip can have a longer optical length, thereby to reduce the angular correlated color temperature deviation.
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