发明授权
- 专利标题: Light emitting diode and lens for the same
- 专利标题(中): 发光二极管和镜头相同
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申请号: US13159463申请日: 2011-06-14
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公开(公告)号: US08696175B2公开(公告)日: 2014-04-15
- 发明人: Ju-Young Yoon , Gi-Cherl Kim , Jong-Seo Lee , Chun-Ho Song , Se-Ki Park , Sang-Gil Lee , Seock-Hwan Kang
- 申请人: Ju-Young Yoon , Gi-Cherl Kim , Jong-Seo Lee , Chun-Ho Song , Se-Ki Park , Sang-Gil Lee , Seock-Hwan Kang
- 申请人地址: KR Yongin, Gyeonggi-Do
- 专利权人: Samsung Display Co., Ltd.
- 当前专利权人: Samsung Display Co., Ltd.
- 当前专利权人地址: KR Yongin, Gyeonggi-Do
- 代理机构: F. Chau & Associates, LLC
- 优先权: KR2004-83146 20041018
- 主分类号: F21V5/04
- IPC分类号: F21V5/04
摘要:
A lens for a light emitting diode is formed with a material having a refractive index of n, and the lens includes a base, a first curved circumferential surface extending from the base, a curved center-edge surface extending from the first curved circumferential surface, and a curved centermost surface extending from the curved center-edge surface. The base includes a groove for receiving a light emitting chip therein. In the lens, a distance from a center of the base to a point of the curved center-edge surface is always shorter than the radius of curvature for the point of the curved center-edge surface. The curved centermost surface has a concave shape with respect to the base. In addition, when an obtuse angle formed between a main axis of the lens and a tangent line of a point of the curved centermost surface is A1, and an acute angle formed between a straight line linking the center of the base to the point of the curved centermost surface and the main axis of the lens is A2, the lens satisfies the equation: A1+A2
公开/授权文献
- US08567998B2 Light emitting diode and lens for the same 公开/授权日:2013-10-29