Luminaire with distributed LED sources
First Claim
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1. A luminaire device, comprising:
- a casing comprising an exit end and an inner surface, wherein said inner surface includes a diffuse reflective material, wherein said casing defines a cavity; and
at least one radiative source mounted around a perimeter of said casing, said at least one radiative source angled to emit radiation toward said inner surface.
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Abstract
A wide beam angle (diffuse) luminaire with an efficient multi-source radiative emitter array. Embodiments of the luminaire utilize one or more LEDs disposed around a perimeter of a protective casing. The LEDs are angled to emit into an internal cavity defined by the inner surface of the casing. The placement of the LEDs around the perimeter of the device reduces self-blocking and facilitates heat transfer from the LEDs through the casing or another heat sink and into the ambient. Light impinges on the inner surface and is redirected as useful emission. A diffuse reflective coating may be deposited on the inner surface to mix the light before it is emitted.
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Citations
59 Claims
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1. A luminaire device, comprising:
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a casing comprising an exit end and an inner surface, wherein said inner surface includes a diffuse reflective material, wherein said casing defines a cavity; and at least one radiative source mounted around a perimeter of said casing, said at least one radiative source angled to emit radiation toward said inner surface. - 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. A luminaire device, comprising:
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a casing comprising an exit end and an inner surface, wherein said inner surface includes a reflective material, wherein said casing defines a cavity; and a plurality of light emitters disposed around a perimeter of said casing at said exit end, each of said light emitters angled to emit light toward said inner surface; wherein said emitters can emit different spectra. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37)
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38. A luminaire device, comprising:
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a casing comprising an exit end and an inner surface, wherein said inner surface includes a reflective material, wherein said casing defines a cavity; a ring structure disposed around and within the perimeter of said casing; and a plurality of light emitting devices embedded within said ring structure, each of said light emitting devices arranged to emit light toward said inner surface. - View Dependent Claims (39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59)
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Specification