Solid state white light emitter and display using same
First Claim
1. A light emitting device, comprising:
- multiple LEDs each configured to emit blue light; and
a same luminophoric medium configured to interact with emitted blue light from the multiple LEDs to produce down-converted light,wherein the emitted blue light from the multiple LEDs and said down-converted light produce a white light output.
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Reexamination
Accused Products
Abstract
A light emitting assembly comprising a solid state device coupleable with a power supply constructed and arranged to power the solid state device to emit from the solid state device a first, relatively shorter wavelength radiation, and a down-converting luminophoric medium arranged in receiving relationship to said first, relatively shorter wavelength radiation, and which in exposure to said first, relatively shorter wavelength radiation, is excited to responsively emit second, relatively longer wavelength radiation. In a specific embodiment, monochromatic blue or UV light output from a light-emitting diode is down-converted to white light by packaging the diode with fluorescent organic and/or inorganic fluorescers and phosphors in a polymeric matrix.
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Citations
68 Claims
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1. A light emitting device, comprising:
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multiple LEDs each configured to emit blue light; and a same luminophoric medium configured to interact with emitted blue light from the multiple LEDs to produce down-converted light, wherein the emitted blue light from the multiple LEDs and said down-converted light produce a white light output. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 68)
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35. A light emitting device, comprising:
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a housing; an array of LEDs in said housing, each of said LEDs including an emitting face configured to emit blue light; and a luminophoric medium in the housing and in contact with a light-transmissive wall member of the housing, interactive with emitted blue light from the LEDs to produce down-converted light, wherein the emitted blue light from the LEDs and down-converted light produce a white light output. - View Dependent Claims (36, 37, 38, 39)
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40. A light emitting device, comprising:
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an array of LEDs, wherein each LED is configured to emit blue light; and a same luminophoric medium configured to interact with emitted blue light from the LEDs in said array to produce down-converted light, wherein the emitted blue light from the LEDs in said array and said down-converted light produce a white light output. - View Dependent Claims (41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52)
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53. A light emitting device, comprising:
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an array of LEDs, wherein each LED is adapted for emitting blue light; a luminophoric medium comprising at least one of red, yellow and green emissive centers, wherein the luminophoric medium is interactive with blue light from the LEDs to produce down-converted light, and the blue light and down-converted light produce a white light output, and wherein the array of LEDs is in a housing.
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54. A light emitting device, comprising:
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an array of LEDs, wherein each of said LEDs is configured to emit blue light; and a same luminophoric medium configured to interact with emitted blue light from the LEDs in said array to produce down-converted light, said luminophoric medium comprising multiple materials, wherein the emitted blue light from the LEDs in said array and said down-converted light produce a white light output, and wherein the array of LEDs is in a housing.
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55. A light emitting device, comprising:
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an array of LEDs, wherein each LED is configured to emit blue light; a luminophoric medium interactive with emitted blue light from the LED to produce down-converted light, wherein the luminophoric medium includes at least one phosphor doped with cerium or europium, and wherein the emitted blue light from the LED and down-converted light produce a white light output, and wherein the array of LEDs is in a housing.
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- 56. A white light emitting LED device including an array of LEDs, each LED of said array of LEDs emitting blue light and a luminophoric medium including phosphors, interactive with emitted blue light from the LED to produce down-converted light, wherein the luminophoric medium includes at least one of red and yellow emissive centers, wherein the emitted blue light from the LEDs and the down-converted light produce a white light output, and wherein the array of LEDs is in a housing.
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58. A light emitting device comprising:
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an array of LEDs, each said LED configured to emit blue light; a luminophoric medium interactive with emitted blue light from the LEDs, said luminophoric medium being in contact with the LEDs, and including a red emissive center, interactive with emitted blue light from the LEDs to produce down-converted light, wherein the emitted blue light from the LEDs and down-converted light produce a white light output, and wherein the array of LEDs is in a housing.
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59. A light emitting device, comprising:
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a multiplicity of LEDs, wherein each LED is configured to emit blue light; and a luminophoric medium configured to interact with emitted blue light from at least some of the LEDs in said multiplicity of LEDs, to produce down-converted light, wherein the luminophoric medium is contiguous to the multiplicity of LEDs, and wherein said emitted blue light and down-converted light produce a white light output. - View Dependent Claims (60, 61, 62, 63, 64, 65, 66, 67)
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Specification