Invention Grant
- Patent Title: Multi-lens LED-array optic system
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Application No.: US14987199Application Date: 2016-01-04
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Publication No.: US09689552B2Publication Date: 2017-06-27
- Inventor: Kurt S. Wilcox , Bernd Keller , Ted Lowes , Peter S. Andrews , Christopher Strom
- Applicant: Cree, Inc.
- Applicant Address: US NC Durham
- Assignee: Cree, Inc.
- Current Assignee: Cree, Inc.
- Current Assignee Address: US NC Durham
- Agency: Jansson Munger McKinley & Kirby Ltd.
- Main IPC: F21V5/04
- IPC: F21V5/04 ; F21V7/00 ; F21V5/00 ; F21V13/02 ; G02B19/00 ; F21V13/04 ; F21W131/103 ; H01L25/075 ; H01L33/54 ; F21Y105/10 ; F21Y115/10

Abstract:
A lighting apparatus including an LED light emitter having an axis. The apparatus comprising a first lens over the emitter a second lens spaced over the first lens. The first lens is configured to direct LED-emitted light primarily toward a preferential radial side with respect to the emitter axis. The first lens may be an asymmetric primary lens. The first lens may have a centerline which is offset from the emitter axis toward the preferential radial side. Alternatively or in addition, the first lens may have an outer surface configured to direct LED-emitted light primarily toward the preferential radial side. The second lens may be asymmetric and be configured to further direct the light primarily toward the preferential radial side. The secondary lens may include inner and outer surfaces each shaped to direct received light primarily toward the preferential side.
Public/Granted literature
- US20160116135A1 MULTI-LENS LED-ARRAY OPTIC SYSTEM Public/Granted day:2016-04-28
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