Invention Grant
- Patent Title: Multi-lens LED-array optic system
- Patent Title (中): 多镜头LED阵列光学系统
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Application No.: US13441540Application Date: 2012-04-06
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Publication No.: US09255686B2Publication Date: 2016-02-09
- Inventor: Kurt S. Wilcox , Bernd Keller , Ted Lowes , Peter S. Andrews , Christopher Strom
- Applicant: Kurt S. Wilcox , Bernd Keller , Ted Lowes , Peter S. Andrews , Christopher Strom
- Applicant Address: US NC Durham
- Assignee: Cree, Inc.
- Current Assignee: Cree, Inc.
- Current Assignee Address: US NC Durham
- Agency: Jannson Munger McKinley & Kirby Ltd.
- Main IPC: F21V5/00
- IPC: F21V5/00 ; F21V7/00 ; F21V5/04 ; F21V13/02 ; G02B19/00 ; F21W131/103 ; F21Y101/02 ; F21Y105/00 ; H01L25/075 ; H01L33/54

Abstract:
Lighting apparatus having a first lens over the LED emitter and a second lens over the first lens, and including: a first optical surface which is a first-lens outer surface configured to refract light from the emitter; a second optical surface which is a second-lens inner surface spaced from the first optical surface; and a third optical surface which is a second-lens outer surface configured to refract light from the second optical surface toward a preferential side. One embodiment includes asymmetric primary and secondary lenses.
Public/Granted literature
- US20120307503A1 Multi-Lens LED-Array Optic System Public/Granted day:2012-12-06
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