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US 8,939,604 B2Granted
Modular LED strip lighting apparatus
AssigneeArkalumen Inc.
InventorGerald Edward Briggs
Life of this patent
Estimating the term…
Abstract
A LED based lighting apparatus is disclosed. The light engine used in the lighting apparatus may use a multi-layer metal core printed circuit board and have a plurality of LED groups that are independently controllable by a control unit. The power supply input and return paths connected to each LED group may be implemented on different layers to allow a compact footprint that may be used with traditional fluorescent encasements with relatively little modification.
Claims20
A light engine comprising:
- a printed circuit board having a first interconnection layer and a second interconnection layer;
- a plurality of LED groups coupled in parallel in said first interconnection layer and coupled to a respective one of a plurality of return paths associated with said LED group in said second interconnection layer;
- each of said LED groups comprising a plurality of LED sets coupled in parallel in said first interconnection layer;
- wherein a first one of said LED groups is comprised of at least a subset of LEDs having a first colour temperature, and a second one of said LED groups is comprised of at least a subset of LEDs having a second colour temperature different from said first colour temperature;
- wherein at least one of said LEDs having a first colour temperature from said first LED group and at least one of said LEDs having a second colour temperature from said second LED group are intertwined on said light engine.
2 more elements
A lighting apparatus comprising at least two light engines, each of said light engines comprising:
- a printed circuit board having a first interconnection layer and a second interconnection layer;
- a plurality of LED groups coupled in parallel in said first interconnection layer and coupled to a respective one of a plurality of return paths associated with said LED group in said second interconnection layer;
- each of said LED groups comprising a plurality of LED sets coupled in parallel in said first interconnection layer;
- wherein said light engines are adapted to be physically connected to maintain a connection path between each of said return paths.
1 more element
A lighting apparatus comprising a light engine comprising:
- a printed circuit board having a first interconnection layer and a second interconnection layer;
- a plurality of LED groups coupled in parallel in said first interconnection layer and coupled to a respective one of a plurality of return paths associated with said LED group in said second interconnection layer;
- each of said LED groups comprising a plurality of LED sets coupled in parallel in said first interconnection layer;
- wherein a first one of said LED groups is comprised of at least a subset of LEDs having a first colour temperature, and a second one of said LED groups is comprised of at least a subset of LEDs having a second colour temperature different from said first colour temperature, wherein at least one of said LEDs having a first colour temperature from said first LED group and at least one of said LEDs having a second colour temperature from said second LED group are mounted so that the light emitted from said LEDs overlaps before reaching an optics section of said lighting apparatus.
1 more element
A light engine comprising:
- a printed circuit board having a first interconnection layer and a second interconnection layer;
- a plurality of LED groups coupled in parallel to a return path in said first interconnection layer, each of said LED groups comprising a plurality of LED sets coupled in parallel in said first interconnection layer;
- and
- a plurality of power supply inputs in said second interconnection layer, each of said power supply inputs coupled to a respective one of said LED groups;
- wherein a first one of said LED groups is comprised of at least a subset of LEDs having a first colour temperature, and a second one of said LED groups is comprised of at least a subset of LEDs having a second colour temperature different from said first colour temperature;
- wherein at least one of said LEDs having a first colour temperature from said first LED group and at least one of said LEDs having a second colour temperature from said second LED group are intertwined on said light engine.
3 more elements
A light engine comprising:
- a printed circuit board having a first interconnection layer and a second interconnection layer;
- a plurality of LED groups coupled in parallel between a power supply input and a plurality of layer interconnection elements in said first interconnection layer;
- each of said plurality of LED groups comprising a return path coupled to said plurality of layer interconnection elements associated with said LED group in said second interconnection layer and a power supply return;
- and
- a plurality of LED sets coupled in parallel in said first interconnection layer, each of said LED sets comprising a plurality of LEDs coupled in series in said first interconnection layer between said power supply input and one of said layer interconnection elements.
2 more elements
A lighting apparatus comprising a light engine comprising:
- a printed circuit board having a first interconnection layer and a second interconnection layer;
- a plurality of LED groups coupled in parallel to a return path in said first interconnection layer, each of said LED groups comprising a plurality of LED sets coupled in parallel in said first interconnection layer;
- and a plurality of power supply inputs in said second interconnection layer, each of said power supply inputs coupled to a respective one of said LED groups;
- wherein a first one of said LED groups is comprised of at least a subset of LEDs having a first colour temperature, and a second one of said LED groups is comprised of at least a subset of LEDs having a second colour temperature different from said first colour temperature, wherein at least one of said LEDs having a first colour temperature from said first LED group and at least one of said LEDs having a second colour temperature from said second LED group are mounted so that the light emitted from said LEDs overlaps before reaching an optics section of said lighting apparatus.
1 more element
Dependencies are inferred from the claim text.