Methods and apparatus for an LED light engine
First Claim
1. A light engine comprising:
- a high thermal conductivity substrate;
a plurality of light-emitting-diode (LED) devices mechanically connected to said substrate, said LED devices electrically interconnected in a circuit having first and second terminals, said first and second terminals configured to accept an input voltage;
an outer dike fixed to said substrate and surrounding at least a portion of said LED devices;
a substantially transparent polymeric encapsulant disposed on said plurality of LED devices and restrained by said outer dike.
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Accused Products
Abstract
An LED light engine comprising a high thermal conductivity substrate (e.g., a metal-clad PCB), a plurality of light-emitting-diode (LED) semiconductor devices mechanically connected to the substrate, an outer dike fixed to the substrate and surrounding at least a portion of the LED devices, and a substantially transparent polymeric encapsulant (e.g., optical-grade silicone) disposed on the plurality of LED devices and restrained by said outer dike. In one embodiment, the light engine includes a reflector (e.g., a generally conic reflector) fixed to the substrate to form the outer dike. In another embodiment, an optical component (e.g., a lens, filter, or the like) is optically coupled to the polymeric encapsulant disposed on the LED devices.
80 Citations
14 Claims
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1. A light engine comprising:
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a high thermal conductivity substrate;
a plurality of light-emitting-diode (LED) devices mechanically connected to said substrate, said LED devices electrically interconnected in a circuit having first and second terminals, said first and second terminals configured to accept an input voltage;
an outer dike fixed to said substrate and surrounding at least a portion of said LED devices;
a substantially transparent polymeric encapsulant disposed on said plurality of LED devices and restrained by said outer dike. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification