Lighting apparatus
First Claim
Patent Images
1. A lighting apparatus, comprising:
- a base comprised of an electrically conductive material and a layer of oxide on said material, the base comprising a cavity;
electrically conductive traces mounted on the base, at least a portion of the conductive traces being disposed in the cavityan array of LEDs electrically connected to the conductive traces, at least a portion of the array of LEDs disposed in the cavity;
said LEDs electrically insulated from the conductive material by said oxide; and
a selectively removable cover configured to fit over the array of LEDs and to at least partially cover the cavity when in an installed position, the cover comprising an electrically conductive portion;
wherein the electrically conductive portion of the cover is configured to electrically communicate with the conductive traces so that electrical current flows between the cover and the traces when the cover is in the installed position, and electrical current flow is interrupted when the cover is removed from the cavity.
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Abstract
A lighting apparatus is provided including an array of light emitting diodes (LEDs) disposed on a base. The base is configured to move heat away from the array of LEDs to other portions of the base and further to the atmosphere or an adjacent housing. In one embodiment, a native oxide on the base electrically insulates the base from the LEDs. In another embodiment, a cover is removably disposed over the array of LEDs, and removal of the cover prevents electrical energization of the LEDs.
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Citations
35 Claims
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1. A lighting apparatus, comprising:
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a base comprised of an electrically conductive material and a layer of oxide on said material, the base comprising a cavity; electrically conductive traces mounted on the base, at least a portion of the conductive traces being disposed in the cavity an array of LEDs electrically connected to the conductive traces, at least a portion of the array of LEDs disposed in the cavity; said LEDs electrically insulated from the conductive material by said oxide; and a selectively removable cover configured to fit over the array of LEDs and to at least partially cover the cavity when in an installed position, the cover comprising an electrically conductive portion; wherein the electrically conductive portion of the cover is configured to electrically communicate with the conductive traces so that electrical current flows between the cover and the traces when the cover is in the installed position, and electrical current flow is interrupted when the cover is removed from the cavity. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A lighting apparatus, comprising:
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a base comprised of an electrically conductive material and a layer of oxide on said material, the base further comprising a cavity and a substantially flat mounting surface; electrically conductive traces disposed on the oxide, at least a portion of the conductive traces being disposed in the cavity; an array of LEDs mounted on the base and being electrically connected to the conductive traces so that at least a portion of the array of LEDs is disposed in the cavity, said LEDs electrically insulated from the conductive material by said oxide; a cover configured to fit over the array of LEDs and to at least partially cover the cavity, the cover comprising an electrically conductive portion that is configured to electrically communicate with the conductive traces so that electrical current flows from the cover to the traces, the cover being selectively removable to interrupt the electrical current flow; and a power supply having a substantially flat mounting surface, the base being mounted on the mounting surface of the power supply; wherein the power supply has a positive electrical supply node and a negative electrical supply node, and the cover has two electrically conductive portions that are selectively electrically engageable with respective power supply nodes, and each cover portion is selectively electrically engageable with the conductive traces so as to selectively create an electrical pathway between the nodes through the cover portions, the traces and the array of LEDs.
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11. A lighting apparatus, comprising:
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a base; an array of LEDs mounted to the base; a circuit trace disposed on the base and configured to deliver electrical power to the array of LEDs; a selectively removable cover configured to cover the array, the cover having an electrically conductive portion; and an electrical supply path having an end spaced from the circuit trace; wherein the cover is mechanically coupled to the base such that the electrically conductive portion communicates with the circuit trace and with the electrical supply path so as to complete an electrical pathway to permit power to flow to the LEDs, and removal of the cover opens the electrical pathway to prevent flow of power. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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18. A lighting apparatus, comprising:
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a base; an array of LEDs mounted to the base so that the LEDs are electrically connected to one another; a cover configured to cover the array, the cover comprising a first conductive portion and a second conductive portion; and a first cover contact and a second cover contact electrically connected to the array of LEDs; wherein power is supplied to the LEDs via an electrical pathway, and the cover is mechanically coupled to the base such that the first and second cover portions are electrically engageable with respective cover contacts when the cover is in place so that attachment of the cover completes an electrical pathway to permit power to flow via an electrical pathway through the first cover portion to the array of LEDs and to the second cover portion, and wherein removal of the cover interrupts the electrical pathway to prevent flow of power. - View Dependent Claims (19, 20, 21, 22, 23, 24)
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25. A lighting apparatus, comprising:
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a base; an array of LEDs mounted to the base and electrically communicating with a circuit trace; a cover configured to cover the array, the cover comprising a fastener and a conductive insert; wherein power is supplied to the LEDs via an electrical pathway, and the cover is mechanically coupled to the base such that the conductive insert communicates electrical power between the circuit trace and the fastener so that attachment of the cover completes an electrical pathway to permit power to flow to the LEDs, and removal of the cover opens the electrical pathway to prevent flow of power. - View Dependent Claims (26, 27, 28)
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29. A lighting apparatus comprising:
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a base comprising a pair of apertures; a plurality of contacts on the base, the plurality of contacts comprising a first terminus and a second terminus; at least one LED disposed on the contacts and arranged so that an electrical pathway is established from the first terminus to the second terminus; a power module comprising first and second threaded mount portions, the power module configured to supply electric power between the first and second mount portions and comprising a casing that has first and second apertures that enable access to the first and second mount portions, the apertures configured to generally align with the base apertures; and a first conductive fastener and a second conductive fastener, the fasteners being elongate and adapted to fit through the base apertures and the power module apertures to engage the respective mount portions; wherein the first and second conductive fasteners are adapted to engage the first and second mount portions, respectively, so as to hold the base in a position relative the power module and to electrically connect the first and second mount portions to a respective one of the first and second terminus so as to supply electrical power across the electrical pathway when the fasteners are in place, and wherein the first and second mount portions are threaded, and the first and second fasteners are threaded so as to engage the mount portion threads. - View Dependent Claims (30, 31, 32, 33)
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34. A lighting apparatus comprising:
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a base having a first aperture and a second aperture; a plurality of contacts on the base, the plurality of contacts comprising a first terminus and a second terminus, the first base aperture generally adjacent the first terminus and the second base aperture generally adjacent the second terminus; at least one LED disposed on the contacts and arranged so that an electrical pathway is established from the first terminus to the second terminus; a power module comprising first and second mount portions, the power module configured to supply electric power between the first and second mount portions; and a first conductive fastener and a second conductive fastener; wherein the first and second conductive fasteners are adapted to engage the first and second mount portions, respectively, and extend from the power module mounting portions and through the first and second apertures, respectively, of the base so as to hold the base in a position relative the power module and to electrically connect the first and second mount portions to a respective one of the first and second terminus so as to supply electrical power across the electrical pathway when the fasteners are in place; and wherein a cover is adapted to fit over the at least one LED, and the fasteners physically connect the cover to the base. - View Dependent Claims (35)
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Specification