Lighting devices including thermally conductive housings and related structures
First Claim
Patent Images
1. A lighting device comprising:
- a light emitting device;
a reflective sidewall extending away from the light emitting device;
a thermally conductive housing spaced apart from the reflective sidewall, wherein a cavity is defined between the reflective sidewall and the thermally conductive housing;
a heat dissipating element that extends into the cavity between the reflective sidewall and the thermally conductive housing, wherein portions of the heat dissipating element are spaced apart from both the reflective sidewall and the thermally conductive housing; and
a substrate adjacent the reflective sidewall, wherein the light emitting device is on a surface of the substrate adjacent the reflective sidewall, wherein the heat dissipating element extends into the cavity away from the substrate, and wherein a width of the heat dissipating element increases with increasing distance from the substrate.
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Accused Products
Abstract
A lighting device may include a light emitting device and a sidewall extending away from the light emitting device. In addition, a thermally conductive housing may be spaced apart from the sidewall, and a cavity may be defined between the sidewall and the thermally conductive housing. In addition, a lens may be spaced apart from the light emitting device with the sidewall extending away from the light emitting device to the lens to define a mixing chamber adjacent the light emitting device. Moreover, the thermally conductive housing may be outside the mixing chamber, and the sidewall may be reflective.
245 Citations
39 Claims
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1. A lighting device comprising:
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a light emitting device; a reflective sidewall extending away from the light emitting device; a thermally conductive housing spaced apart from the reflective sidewall, wherein a cavity is defined between the reflective sidewall and the thermally conductive housing; a heat dissipating element that extends into the cavity between the reflective sidewall and the thermally conductive housing, wherein portions of the heat dissipating element are spaced apart from both the reflective sidewall and the thermally conductive housing; and a substrate adjacent the reflective sidewall, wherein the light emitting device is on a surface of the substrate adjacent the reflective sidewall, wherein the heat dissipating element extends into the cavity away from the substrate, and wherein a width of the heat dissipating element increases with increasing distance from the substrate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 21, 23, 25)
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14. A lighting device comprising:
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a fitting; a substrate defining a plane; a light emitting device (LED) on a surface of the substrate, wherein the light emitting device is electrically coupled to the fitting; and a thermally conductive housing thermally coupled to the light emitting device, wherein the thermally conductive housing extends away from the fitting, away from the plane of the substrate, and away from the light emitting device, and wherein the thermally conductive housing defines an outer surface of the lighting device that is substantially free of fins; and a reflective sidewall extending away from the light emitting device, away from the plane of the substrate, and away from the fitting, wherein portions of the thermally conductive housing are spaced apart from the reflective sidewall to define a cavity between the reflective sidewall and the thermally conductive housing; wherein the thermally conductive housing includes at least one opening therethrough providing fluid communication between the cavity inside the thermally conductive housing and a space outside the thermally conductive housing, wherein the opening and the fitting are on opposite sides of the plane of the substrate, and wherein a distance of a portion of the reflective sidewall from the plane of the substrate in a direction that is perpendicular to the plane of the substrate is greater than a distance of the at least one opening from the plane of the substrate in the direction that is perpendicular to the plane of the substrate. - View Dependent Claims (15, 16, 17, 18, 19, 20, 22, 24, 31)
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26. A lighting device comprising:
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a light emitting device; a reflective sidewall extending away from the light emitting device; and a thermally conductive housing spaced apart from the reflective sidewall, wherein a cavity is defined between the reflective sidewall and the thermally conductive housing wherein the thermally conductive housing includes a thermally conductive housing base; a heat dissipating element that extends into the cavity between the reflective sidewall and the thermally conductive housing, wherein portions of the heat dissipating element are spaced apart from both the reflective sidewall and the thermally conductive housing; an electrical fitting electrically coupled to the light emitting device; and a substrate adjacent the reflective sidewall, wherein the light emitting device is on a surface of the substrate adjacent the reflective sidewall, wherein portions of the thermally conductive housing base are between the substrate and the electrical fitting; wherein the heat dissipating element and the thermally conductive housing including the thermally conductive housing base are provided as a single metal piece.
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27. A lighting device comprising:
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a light emitting device; a reflective sidewall extending away from the light emitting device; a thermally conductive housing spaced apart from the reflective sidewall, wherein a cavity is defined between the reflective sidewall and the thermally conductive housing wherein the thermally conductive housing includes a thermally conductive housing base; a heat dissipating element that extends into the cavity between the reflective sidewall and the thermally conductive housing, wherein portions of the heat dissipating element are spaced apart from both the reflective sidewall and the thermally conductive housing; an electrical fitting electrically coupled to the light emitting device; and a substrate adjacent the reflective sidewall, wherein the light emitting device is on a surface of the substrate adjacent the reflective sidewall, wherein portions of the thermally conductive housing base are between the substrate and the electrical fitting; wherein the thermally conductive housing and the thermally conductive housing base are provided as a first continuous metal piece, wherein the heat dissipating element includes a heat dissipating base that extends between the substrate and the thermally conductive housing base, and wherein the heat dissipating element and the heat dissipating base are provided as a second continuous metal piece.
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28. A lighting device comprising:
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a fitting; a light emitting device (LED) electrically coupled to the fitting; and a thermally conductive housing thermally coupled to the light emitting device, wherein the thermally conductive housing extends away from the fitting and away from the light emitting device, wherein the thermally conductive housing defines an outer surface of the lighting device that is substantially free of fins, and wherein the thermally conductive housing includes a thermally conductive housing base; a reflective sidewall extending away from the light emitting device, wherein portions of the thermally conductive housing are spaced apart from the reflective sidewall to define a cavity between the reflective sidewall and the thermally conductive housing, and wherein the thermally conductive housing includes openings therethrough providing fluid communication between the cavity inside the thermally conductive housing and space outside the thermally conductive housing; a heat dissipating element that extends into the cavity between the reflective sidewall and the thermally conductive housing, wherein the heat dissipating element is thermally coupled with the light emitting device, and wherein portions of the heat dissipating element are spaced apart from both the reflective sidewall and the thermally conductive housing; and a substrate adjacent the reflective sidewall, wherein the light emitting device is on a surface of the substrate adjacent the reflective sidewall, wherein portions of the thermally conductive housing base are between the substrate and the electrical fitting. - View Dependent Claims (29, 30)
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32. A lighting device comprising:
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a substrate defining a plane; a light emitting device on a surface of the substrate, wherein the light emitting device is on a light emitting device side of the plane of the substrate; a reflective sidewall adjacent the light emitting device, wherein the reflective sidewall extends away from the light emitting device and away from the plane of the substrate on the light emitting device side of the plane; a thermally conductive housing spaced apart from the reflective sidewall, wherein a cavity is defined between the reflective sidewall and the thermally conductive housing; and a heat dissipating element that extends into the cavity between the reflective sidewall and the thermally conductive housing on the light emitting device side of the plane, wherein portions of the heat dissipating element in the cavity are spaced apart from both the reflective sidewall and the thermally conductive housing. - View Dependent Claims (33, 34, 35)
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36. A lighting device comprising:
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a light emitting device; a reflective sidewall extending away from the light emitting device; and a thermally conductive housing spaced apart from the reflective sidewall, wherein a cavity is defined between the reflective sidewall and the thermally conductive housing; and a planar lens spaced apart from the light emitting device, wherein the reflective sidewall extends away from the light emitting device to the lens to define a mixing chamber adjacent the light emitting device. - View Dependent Claims (37, 38, 39)
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Specification