Invention Grant
- Patent Title: Hybrid reflector system for lighting device
- Patent Title (中): 混合式反光镜系统用于照明装置
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Application No.: US12606377Application Date: 2009-10-27
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Publication No.: US09435493B2Publication Date: 2016-09-06
- Inventor: Paul Kenneth Pickard
- Applicant: Paul Kenneth Pickard
- Applicant Address: US NC Durham
- Assignee: CREE, INC.
- Current Assignee: CREE, INC.
- Current Assignee Address: US NC Durham
- Agency: Koppel, Patrick, Heybl & Philpott
- Main IPC: F21K99/00
- IPC: F21K99/00 ; F21V7/00 ; F21V29/505 ; F21V29/507 ; F21V29/74 ; F21V7/04 ; F21V17/16 ; F21V29/00 ; F21Y101/02 ; F21Y113/00 ; F21V29/89

Abstract:
A hybrid reflector system for use in lighting application. The system is particularly well-suited for use with solid state light sources, such as light emitting diodes (LEDs). Embodiments of the system include a bowl-shaped outer reflector and an intermediate reflector disposed inside the bowl and proximate to the light source. The reflectors are arranged to interact with the light emitted from the source to produce a beam having desired characteristics. Some of the light passes through the system without interacting with any of the reflector surfaces. This uncontrolled light, which is already emitting in a useful direction, does not experience optical loss normally associated with one or more reflective bounces. Some of the light emanating from the source at higher angles that would not be emitted within the desired beam angle is reflected by one or both of the reflectors, redirecting that light to achieve a tighter beam.
Public/Granted literature
- US20110096548A1 HYBRID REFLECTOR SYSTEM FOR LIGHTING DEVICE Public/Granted day:2011-04-28
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