Light source with optics to produce a spherical emission pattern
First Claim
Patent Images
1. A light source, comprising:
- a disc-shaped substrate;
a plurality of solid state light emitting cells having a substantially planar arrangement on the substrate; and
one or more reflectors, each comprising an unbroken surface, the one or more reflectors arranged with the solid state light emitting cells and shaped as a continuous curve so that light emitted from the light source has a substantially spherical emission pattern,wherein each of the one or more reflectors is cantilevered from an inner edge of the disc-shaped substrate to form a lip that extends partially over a solid state light emitting cell such that an outer edge of the solid state light emitting cell is configured to emit at least a portion of the light in an upward direction past the reflector, and wherein the one or more reflectors is configured to reflect at least a portion of the light in a downward direction.
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Abstract
A light emitting apparatus includes a substrate, a plurality of solid state light emitting cells having a planar arrangement on the substrate, and one or more reflectors arranged with the solid state light emitting cells so that light emitted from the light source has a substantially spherical emission pattern.
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Citations
51 Claims
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1. A light source, comprising:
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a disc-shaped substrate; a plurality of solid state light emitting cells having a substantially planar arrangement on the substrate; and one or more reflectors, each comprising an unbroken surface, the one or more reflectors arranged with the solid state light emitting cells and shaped as a continuous curve so that light emitted from the light source has a substantially spherical emission pattern, wherein each of the one or more reflectors is cantilevered from an inner edge of the disc-shaped substrate to form a lip that extends partially over a solid state light emitting cell such that an outer edge of the solid state light emitting cell is configured to emit at least a portion of the light in an upward direction past the reflector, and wherein the one or more reflectors is configured to reflect at least a portion of the light in a downward direction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A light source, comprising:
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a disc-shaped substrate; a plurality of solid state light emitting cells arranged on the substrate to emit light in substantially the same direction; and one or more reflectors, each comprising an unbroken surface, the one or more reflectors arranged with the solid state light emitting cells and shaped as a continuous curve so that the light is emitted from the light source with a substantially spherical emission pattern; wherein each of the one or more reflectors is cantilevered from an inner edge of the disc-shaped substrate to form a lip that extends partially over a solid state light emitting cell such that an outer edge of the solid state light emitting cell configured to emit at least a portion of the light in an upward direction past the reflector, and wherein the one or more reflectors is configured to reflect at least a portion of the light in a downward direction. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. A light source, comprising:
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a disc-shaped substrate; a plurality of solid state light emitting cells having a substantially planar arrangement on the substrate; and means for reflecting light emitted from the solid state light emitting cells, the means for reflecting light shaped as a continuous curve so that the light is emitted from the light source with a substantially spherical emission pattern, the light reflecting means comprising an unbroken surface, wherein the means for reflecting light comprises one or more reflectors, each cantilevered from an inner edge of the disc-shaped substrate to form a lip that extends partially over a solid state light emitting cell such that an outer edge of the solid state light emitting cell is configured to emit at least a portion of the light in an upward direction past the reflector, and wherein the means for reflecting light is configured to reflect at least a portion of the light in a downward direction. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27)
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28. A lamp, comprising:
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a housing having a base and a transparent bulb portion mounted to the base; a light source within the housing, the light source comprising; a disc-shaped substrate; a plurality of solid state light emitting cells having a substantially planar arrangement on the substrate; and one or more reflectors, each comprising an unbroken surface, the one or more reflectors arranged with the solid state light emitting cells and shaped as a continuous curve so that light emitted from the transparent bulb portion has a substantially spherical emission pattern; wherein each of the one or more reflectors is cantilevered from an inner edge of the disc-shaped substrate to form a lip that extends partially over a solid state light emitting cell such that an outer edge of the solid state light emitting cell is configured to emit at least a portion of the light in an upward direction past the reflector, and wherein the one or more reflectors is configured to reflect at least a portion of the light in a downward direction. - View Dependent Claims (29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42)
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43. A lamp, comprising:
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a housing having a base and a transparent bulb portion mounted to the base; a light source within the housing, the light source comprising a plurality of solid state light emitting cells arranged on a disc-shaped substrate and one or more reflectors, each comprising an unbroken surface, the one or more reflectors arranged with the solid state light emitting cells and shaped as a continuous curve so that light emitted from the light source has a substantially spherical emission pattern; wherein each of the one or more reflectors is cantilevered from an inner edge of the disc-shaped substrate to form a lip that extends partially over a solid state light emitting cell such that an outer edge of the solid state light emitting cell is configured to emit at least a portion of the light in an upward direction past the reflector, and wherein the one or more reflectors is configured to reflect at least a portion of the light in a downward direction; and means for cooling the light source. - View Dependent Claims (44, 45, 46, 47, 48, 49, 50, 51)
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Specification