Invention Grant
US08011811B2 Aspherical LED angular lens for central distribution patterns and LED assembly using the same
失效
用于中央配电图案的非球面LED角度透镜和使用其的LED组件
- Patent Title: Aspherical LED angular lens for central distribution patterns and LED assembly using the same
- Patent Title (中): 用于中央配电图案的非球面LED角度透镜和使用其的LED组件
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Application No.: US12489377Application Date: 2009-06-22
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Publication No.: US08011811B2Publication Date: 2011-09-06
- Inventor: Bo-Yuan Shih , Kai Mou Lin , Yi-Fan Liao , San-Woei Shyu
- Applicant: Bo-Yuan Shih , Kai Mou Lin , Yi-Fan Liao , San-Woei Shyu
- Applicant Address: TW Taipei
- Assignee: E-Pin Optical Industry Co., Ltd.
- Current Assignee: E-Pin Optical Industry Co., Ltd.
- Current Assignee Address: TW Taipei
- Agency: WPAT, P.C.
- Agent Anthony King
- Priority: TW97124649A 20080630
- Main IPC: F21V3/00
- IPC: F21V3/00 ; F21V5/00

Abstract:
The present invention discloses an aspherical LED angular optical lens for central distribution patterns and an LED assembly using the same. The optical lens comprises a concave surface on a source side and a convex surface on an project side. The LED assembly comprising the optical lens can accumulate light emitted from the LED die and generate a peak intensity of the central angular circle distribution pattern which is greater than 72° and smaller than 108°. The present invention only uses a single optical lens capable of accumulating light and forming a required distribution pattern to satisfy the requirement of a luminous flux ratio greater than 85% and the requirement of an illumination, a flash light of a cell phone or a flash light of a camera.
Public/Granted literature
- US20090323352A1 ASPHERICAL LED ANGULAR LENS FOR CENTRAL DISTRIBUTION PATTERNS AND LED ASSEMBLY USING THE SAME Public/Granted day:2009-12-31
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