Method of forming LED-based light and resulting LED-based light
DCFirst Claim
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1. A method of forming a LED-based light for replacing a conventional fluorescent bulb in a fluorescent light fixture and including a plurality of LEDs, an elongate heat sink, an elongate light transmitting cover, the method comprising:
- providing the heat sink by shaping an elongate sheet of highly thermally conductive material to include a plurality of longitudinally extending surfaces;
wherein at least one longitudinal vertex is formed between two adjacent longitudinally extending surfaces;
mounting the plurality of LEDs in thermally conductive relation with and substantially along a length of at least one of the plurality of longitudinally extending surfaces; and
enclosing the plurality of LEDs within the light transmitting cover such that the at least one longitudinal vertex engages an interior of the cover.
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Abstract
A method of forming a LED-based light for replacing a conventional fluorescent bulb in a fluorescent light fixture includes shaping an elongate sheet of highly thermally conductive material to fashion a heat sink. Shaping the heat sink allows fashioning the heat sink to define cover and end cap attachment structures, surfaces for mounting LEDs at various angles, and a high surface area to width ratio for dissipating heat.
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Citations
22 Claims
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1. A method of forming a LED-based light for replacing a conventional fluorescent bulb in a fluorescent light fixture and including a plurality of LEDs, an elongate heat sink, an elongate light transmitting cover, the method comprising:
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providing the heat sink by shaping an elongate sheet of highly thermally conductive material to include a plurality of longitudinally extending surfaces;
wherein at least one longitudinal vertex is formed between two adjacent longitudinally extending surfaces;mounting the plurality of LEDs in thermally conductive relation with and substantially along a length of at least one of the plurality of longitudinally extending surfaces; and enclosing the plurality of LEDs within the light transmitting cover such that the at least one longitudinal vertex engages an interior of the cover. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. An LED-based light for replacing a conventional fluorescent light bulb in a fluorescent light fixture, the LED-based light comprising:
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a hollow, cylindrical light transmitting tube; a heat sink shaped from a sheet of highly thermally conductive material having a width greater than a maximal width of the tube, the heat sink having a central planar portion and two side portions extending perpendicularly to the planar portion from opposing ends of the planar portion, the heat sink positioned within the tube with the side portions in contact with an interior of the tube; a printed circuit board mounted on the central planar portion; multiple LEDs longitudinally spaced along the length of the circuit board; and two end caps coupled to opposing ends of the tube, the end caps carrying bi-pin connectors in electrical communication with the circuit board. - View Dependent Claims (20, 21, 22)
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Specification