Refrigerated led illumination system
First Claim
1. An LED lighting assembly for use in a refrigerated display cabinet and the like adapted for connection to a voltage source, said assembly comprising:
- a longitudinal housing;
a plurality of LED lighting modules carried end-to-end to form a strip along a length of said housing;
a plurality of LEDs carried by said lighting modules;
a plurality of refractive lens carried by said housing covering said plurality of LEDs for dispersing a wide angle of light from each of the plurality of LEDs; and
a constant current control circuit carried by at least one of said lighting modules for delivering a generally constant electrical current to said LEDs.
1 Assignment
0 Petitions
Accused Products
Abstract
A self-contained LED lighting assembly for use in a refrigerated cabinet contains a plurality of LEDs mounted upon a substrate, each using a refractive lens designed to evenly disperse the light emitted from each LED into a flat, wide pattern suitable for lighting the contents of the cabinet. Heat is effectively removed from each LED and transported to an interior air space within the LED lighting assembly housing. The system is designed to replace current lighting systems and is sized fit within the space provided for current lighting systems, without the need for substantial modification, cutting, or removal of the current lighting systems. The assembly may be composed of individual LED lighting modules wired end-to-end to provide a desired length of strip lighting. Upon complete installation, the system provides the same or better lighting using only a fraction of the power required by the system replaced.
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Citations
26 Claims
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1. An LED lighting assembly for use in a refrigerated display cabinet and the like adapted for connection to a voltage source, said assembly comprising:
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a longitudinal housing; a plurality of LED lighting modules carried end-to-end to form a strip along a length of said housing; a plurality of LEDs carried by said lighting modules; a plurality of refractive lens carried by said housing covering said plurality of LEDs for dispersing a wide angle of light from each of the plurality of LEDs; and a constant current control circuit carried by at least one of said lighting modules for delivering a generally constant electrical current to said LEDs. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A LED lighting assembly for use with a low voltage source in a refrigerated display cabinet, comprising:
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a longitudinal housing; a LED substrate carried by a housing, and a plurality of LEDs carried on said substrate; a lens plate carried by said housing above said LED substrate including a plurality of shaped lens superposed above said LEDs; a constant current control circuit carried by said LED substrate for delivering a generally constant electrical current to said LEDs wherein said current control circuit is adapted for connection to the low voltage source; a current delivery circuit carried by a said LED substrate electrically connecting said current control circuit to the LEDs of said lighting modules. first electrical conductors for inputting the low voltage to said current control circuit, and second electrical conductors arranged parallel to said first conductors for applying the voltage across said LED at successive arrangements of LEDs in said housing; a metal heat sink disposed upon said LED substrate, wherein the heat generated by the plurality of LEDs is transferred to said metal heat sink. - View Dependent Claims (17, 18, 19, 21, 22)
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20. The assembly of claim 20 wherein said housing includes an interior air space beneath said substrate for receiving heated air generated by one or more of said plurality of LEDs into said interior air space.
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23. A method of constructing an elongated LED lighting assembly having an elongated housing comprising:
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arranging a plurality of LED lighting modules end-to-end along a length of said elongated housing; arranging said lighting modules to include one or more master lighting modules wherein each is followed by at least one associated slave lighting module wherein the master lighting module includes a current control circuit for delivering current to the LEDs on the master lighting module and the associated slave lighting module; providing a voltage source outside of said elongated housing for applying a voltage to the input of the master lighting modules successively along the length of said elongated housing; and dispersing light from said illuminated LEDs by covering each LED with a shaped refractive lens. - View Dependent Claims (24, 25, 26)
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Specification