Lighting device and lighting method
First Claim
1. A lighting device comprising:
- a first group of solid state light emitters, said first group of solid state light emitters including at least one solid state light emitter;
at least a first luminescent material;
a second group of solid state light emitters, said second group of solid state light emitters including at least one solid state light emitter; and
at least a first power line, said first group of solid state light emitters and said second group of solid state light emitters electrically connected to said first power line,wherein;
said first group of solid state light emitters, when illuminated, emits light having a peak wavelength in the range of from 430 nm to 480 nm;
said first luminescent material, when excited, emits light having a dominant wavelength in the range of from about 555 nm to about 585 nm;
said second group of solid state light emitters, when illuminated, emits light having a dominant wavelength in the range of from 600 nm to 630 nm;
when current is supplied to said first power line, a combination of (1) light exiting said lighting device which was emitted by said first group of solid state light emitters, and (2) light exiting said lighting device which was emitted by said first luminescent material would, in an absence of any additional light, produce a sub-mixture of light having x, y color coordinates which define a point which is within an area on a 1931 CIE Chromaticity Diagram enclosed by first, second, third, fourth and fifth line segments, said first line segment connecting a first point to a second point, said second line segment connecting said second point to a third point, said third line segment connecting said third point to a fourth point, said fourth line segment connecting said fourth point to a fifth point, and said fifth line segment connecting said fifth point to said first point, said first point having x, y coordinates of 0.32, 0.40, said second point having x, y coordinates of 0.36, 0.48, said third point having x, y coordinates of 0.43, 0.45, said fourth point having x, y coordinates of 0.42, 0.42, and said fifth point having x, y coordinates of 0.36, 0.38.
5 Assignments
0 Petitions
Accused Products
Abstract
A lighting device comprising a first group of solid state light emitters, with peak wavelength from 430 nm to 480 nm, and optionally a second group with dominant wavelength from 600 nm to 630 nm, and a first group of lumiphors which emit light having dominant wavelength from 555 nm to 585 nm. In some embodiments, if current is supplied to a power line, a combination of (1) light exiting the lighting device which was emitted by the first group of emitters, and (2) light exiting the lighting device which was emitted by the first group of lumiphors would, in an absence of any additional light, produce a sub-mixture of light having x, y color coordinates within an area on a 1931 CIE Chromaticity Diagram defined by points having coordinates (0.32, 0.40), (0.36, 0.48), (0.43, 0.45), (0.42, 0.42), (0.36, 0.38). Also provided is a method of lighting.
234 Citations
144 Claims
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1. A lighting device comprising:
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a first group of solid state light emitters, said first group of solid state light emitters including at least one solid state light emitter; at least a first luminescent material; a second group of solid state light emitters, said second group of solid state light emitters including at least one solid state light emitter; and at least a first power line, said first group of solid state light emitters and said second group of solid state light emitters electrically connected to said first power line, wherein; said first group of solid state light emitters, when illuminated, emits light having a peak wavelength in the range of from 430 nm to 480 nm; said first luminescent material, when excited, emits light having a dominant wavelength in the range of from about 555 nm to about 585 nm; said second group of solid state light emitters, when illuminated, emits light having a dominant wavelength in the range of from 600 nm to 630 nm; when current is supplied to said first power line, a combination of (1) light exiting said lighting device which was emitted by said first group of solid state light emitters, and (2) light exiting said lighting device which was emitted by said first luminescent material would, in an absence of any additional light, produce a sub-mixture of light having x, y color coordinates which define a point which is within an area on a 1931 CIE Chromaticity Diagram enclosed by first, second, third, fourth and fifth line segments, said first line segment connecting a first point to a second point, said second line segment connecting said second point to a third point, said third line segment connecting said third point to a fourth point, said fourth line segment connecting said fourth point to a fifth point, and said fifth line segment connecting said fifth point to said first point, said first point having x, y coordinates of 0.32, 0.40, said second point having x, y coordinates of 0.36, 0.48, said third point having x, y coordinates of 0.43, 0.45, said fourth point having x, y coordinates of 0.42, 0.42, and said fifth point having x, y coordinates of 0.36, 0.38. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A method of lighting comprising:
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illuminating a first group of solid state light emitters, said first group of solid state light emitters including at least a first solid state light emitter, such that said first group of solid state light emitters emits light having a dominant wavelength in the range of from 430 nm to 480 nm; illuminating a second group of solid state light emitters, said second group of solid state light emitters including at least one solid state light emitter, such that said second group of solid state light emitters emits light having a dominant wavelength in the range of from 600 nm to 630 nm exciting a first luminescent material, such that said first luminescent material emits light having a dominant wavelength in the range of from about 555 nm to about 585 nm; wherein; a combination of (1) light exiting said lighting device which was emitted by said first group of solid state light emitters, and (2) light exiting said lighting device which was emitted by said first luminescent material would, in an absence of any additional light, produce a sub-mixture of light having x, y color coordinates which define a point which is within an area on a 1931 CIE Chromaticity Diagram enclosed by first, second, third, fourth and fifth line segments, said first line segment connecting a first point to a second point, said second line segment connecting said second point to a third point, said third line segment connecting said third point to a fourth point, said fourth line segment connecting said fourth point to a fifth point, and said fifth line segment connecting said fifth point to said first point, said first point having x, y coordinates of 0.32, 0.40, said second point having x, y coordinates of 0.36, 0.48, said third point having x, y coordinates of 0.43, 0.45, said fourth point having x, y coordinates of 0.42, 0.42, and said fifth point having x, y coordinates of 0.36, 0.38. - View Dependent Claims (19, 20)
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21. A lighting device comprising:
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a first group of solid state light emitters; a first luminescent material; and a second group of solid state light emitters; wherein; said first group of solid state light emitters, when illuminated, emits light having a peak wavelength in the range of from 430 nm to 480 nm; said first luminescent material, when excited, emits light having a dominant wavelength in the range of from about 555 nm to about 585 nm; said second group of solid state light emitters, when illuminated, emits light having a dominant wavelength in the range of from 600 nm to 630 nm; and if said first group of solid state light emitters is illuminated and said first luminescent material is excited, a mixture of light exiting said lighting device that was emitted from said first group of solid state light emitters and light exiting said lighting device that was emitted from said first luminescent material would, in the absence of any additional light, have a first group mixed illumination having x, y color coordinates which define a point which is within an area on a 1931 CIE Chromaticity Diagram enclosed by first, second, third, fourth and fifth line segments, said first line segment connecting a first point to a second point, said second line segment connecting said second point to a third point, said third line segment connecting said third point to a fourth point, said fourth line segment connecting said fourth point to a fifth point, and said fifth line segment connecting said fifth point to said first point, said first point having x, y coordinates of 0.32, 0.40, said second point having x, y coordinates of 0.36, 0.48, said third point having x, y coordinates of 0.43, 0.45, said fourth point having x, y coordinates of 0.42, 0.42, and said fifth point having x, y coordinates of 0.36, 0.38. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 70, 76, 77, 78, 94, 100, 106, 112, 113, 114)
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38. A lighting device comprising:
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a first group of solid state light emitters; a first luminescent material; and a second group of solid state light emitters; wherein; said first group of solid state light emitters, when illuminated, emits light having a peak wavelength in the range of from 430 nm to 480 nm; said first luminescent material, when excited, emits light having a dominant wavelength in the range of from about 555 nm to about 585 nm; said second group of solid state light emitters, when illuminated, emits light having a dominant wavelength in the range of from 600 nm to 630 nm; and if said first group of solid state light emitters is illuminated, a mixture of light exiting said lighting device that was emitted from said first group of solid state light emitters and light exiting said lighting device that was emitted from said first luminescent material would, in the absence of any additional light, have a first group mixed illumination having x, y color coordinates which define a point which is within an area on a 1931 CIE Chromaticity Diagram enclosed by first, second, third, fourth and fifth line segments, said first line segment connecting a first point to a second point, said second line segment connecting said second point to a third point, said third line segment connecting said third point to a fourth point, said fourth line segment connecting said fourth point to a fifth point, and said fifth line segment connecting said fifth point to said first point, said first point having x, y coordinates of 0.32, 0.40, said second point having x, y coordinates of 0.36, 0.48, said third point having x, y coordinates of 0.43, 0.45, said fourth point having x, y coordinates of 0.42, 0.42, and said fifth point having x, y coordinates of 0.36, 0.38. - View Dependent Claims (39, 40, 41, 42, 43, 44, 45, 65, 71, 79, 80, 81, 95, 101, 107, 115, 116, 117)
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46. A lighting device comprising:
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a first group of solid state light emitters; a first luminescent material; and a second group of solid state light emitters; at least a first power line directly or switchably electrically connected to said lighting device, wherein; said first group of solid state light emitters, when illuminated, emits light having a peak wavelength in the range of from 430 nm to 480 nm; said first luminescent material, when excited, emits light having a dominant wavelength in the range of from about 555 nm to about 585 nm; said second group of solid state light emitters, when illuminated, emits light having a dominant wavelength in the range of from 600 nm to 630 nm; and when power is supplied to at least said first power line, a mixture of light exiting said lighting device that was emitted from said first group of solid state light emitters and light exiting said lighting device that was emitted from said first luminescent material would, in the absence of any additional light, have a first group mixed illumination having x, y color coordinates which define a point which is within an area on a 1931 CIE Chromaticity Diagram enclosed by first, second, third, fourth and fifth line segments, said first line segment connecting a first point to a second point, said second line segment connecting said second point to a third point, said third line segment connecting said third point to a fourth point, said fourth line segment connecting said fourth point to a fifth point, and said fifth line segment connecting said fifth point to said first point, said first point having x, y coordinates of 0.32, 0.40, said second point having x, y coordinates of 0.36, 0.48, said third point having x, y coordinates of 0.43, 0.45, said fourth point having x, y coordinates of 0.42, 0.42, and said fifth point having x, y coordinates of 0.36, 0.38. - View Dependent Claims (47, 48, 49, 50, 51)
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52. A lighting device comprising:
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a first group of solid state light emitters; and a first luminescent material; wherein; said first group of solid state light emitters, when illuminated, emits light having a peak wavelength in the range of from 430 nm to 480 nm; said first luminescent material, when excited, emits light having a dominant wavelength in the range of from about 555 nm to about 585 nm; and when said first group of solid state light emitters is illuminated and said first luminescent material is excited, a mixture of light exiting said lighting device that was emitted from said first group of solid state light emitters and light exiting said lighting device that was emitted from said first luminescent material would, in the absence of any additional light, have a first group mixed illumination having x, y color coordinates which define a point which is within an area on a 1931 CIE Chromaticity Diagram enclosed by first, second, third, fourth and fifth line segments, said first line segment connecting a first point to a second point, said second line segment connecting said second point to a third point, said third line segment connecting said third point to a fourth point, said fourth line segment connecting said fourth point to a fifth point, and said fifth line segment connecting said fifth point to said first point, said first point having x, y coordinates of 0.32, 0.40, said second point having x, y coordinates of 0.36, 0.48, said third point having x, y coordinates of 0.43, 0.45, said fourth point having x, y coordinates of 0.42, 0.42, and said fifth point having x, y coordinates of 0.36, 0.38. - View Dependent Claims (53, 54, 55, 56, 57, 58, 59, 60, 66, 72, 82, 83, 84, 96, 102, 108, 118, 119, 120)
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61. A lighting device comprising:
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a first group of solid state light emitters; and a first luminescent material; wherein; said first group of solid state light emitters, when illuminated, emits light having a peak wavelength in the range of from 430 nm to 480 nm; said first luminescent material, when excited, emits light having a dominant wavelength in the range of from about 555 nm to about 585 inn; and when said first group of solid state light emitters is illuminated, a mixture of light exiting said lighting device that was emitted from said first group of solid state light emitters and light exiting said lighting device that was emitted from said first luminescent material would, in the absence of any additional light, have a first group mixed illumination having x, y color coordinates which define a point which is within an area on a 1931 CIE Chromaticity Diagram enclosed by first, second, third, fourth and fifth line segments, said first line segment connecting a first point to a second point, said second line segment connecting said second point to a third point, said third line segment connecting said third point to a fourth point, said fourth line segment connecting said fourth point to a fifth point, and said fifth line segment connecting said fifth point to said first point, said first point having x, y coordinates of 0.32, 0.40, said second point having x, y coordinates of 0.36, 0.48, said third point having x, y coordinates of 0.43, 0.45, said fourth point having x, y coordinates of 0.42, 0.42, and said fifth point having x, y coordinates of 0.36, 0.38. - View Dependent Claims (62, 67, 73, 85, 86, 87, 97, 103, 109, 121, 122, 123)
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63. An LED package, comprising:
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an encapsulant element; a solid state light emitter which, when illuminated, emits light having a peak wavelength in the range of from 430 nm to 480 nm; and a first luminescent material which, when excited, emits light having a dominant wavelength in the range of from about 555 nm to about 585 nm, wherein; said solid state light emitter and said first luminescent material are embedded within said encapsulant element; when said solid state light emitter is illuminated, said first luminescent material is excited by light emitted from said solid state light emitter; and when said solid state light emitter is illuminated, a mixture of light is emitted from said LED package which would, in the absence of any additional light, have a first group mixed illumination having x, y color coordinates which define a point which is within an area on a 1931 CIE Chromaticity Diagram enclosed by first, second, third, fourth and fifth line segments, said first line segment connecting a first point to a second point, said second line segment connecting said second point to a third point, said third line segment connecting said third point to a fourth point, said fourth line segment connecting said fourth point to a fifth point, and said fifth line segment connecting said fifth point to said first point, said first point having x, y coordinates of 0.32, 0.40, said second point having x, y coordinates of 0.36, 0.48, said third point having x, y coordinates of 0.43, 0.45, said fourth point having x, y coordinates of 0.42, 0.42, and said fifth point having x, y coordinates of 0.36, 0.38. - View Dependent Claims (68, 74, 88, 89, 90, 98, 104, 110, 124, 125, 126)
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64. A lighting device comprising:
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a first group of solid state light emitters; a first luminescent material; and at least one power line directly or switchably electrically connected to said lighting device, wherein; said first group of solid state light emitters, when illuminated, emits light having a peak wavelength in the range of from 430 nm to 480 nm; said first luminescent material, when excited, emits light having a dominant wavelength in the range of from about 555 nm to about 585 nm; and when power is supplied to at least one of said at least one power line, a mixture of light exiting said lighting device that was emitted from said first group of solid state light emitters and light exiting said lighting device that was emitted from said first luminescent material would, in the absence of any additional light, have a first group mixed illumination having x, y color coordinates which define a point which is within an area on a 1931 CIE Chromaticity Diagram enclosed by first, second, third, fourth and fifth line segments, said first line segment connecting a first point to a second point, said second line segment connecting said second point to a third point, said third line segment connecting said third point to a fourth point, said fourth line segment connecting said fourth point to a fifth point, and said fifth line segment connecting said fifth point to said first point, said first point having x, y coordinates of 0.32, 0.40, said second point having x, y coordinates of 0.36, 0.48, said third point having x, y coordinates of 0.43, 0.45, said fourth point having x, y coordinates of 0.42, 0.42, and said fifth point having x, y coordinates of 0.36, 0.38. - View Dependent Claims (69, 75, 91, 92, 93, 99, 105, 111, 127, 128, 129)
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130. A lighting device comprising:
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a first group of solid state light emitters, said first group of solid state light emitters including at least one solid state light emitter; a first luminescent material; and at least a first power line, said first group of solid state light emitters electrically connected to said first power line, wherein; said first group of solid state light emitters, when illuminated, emits light having a peak wavelength in the range of from 430 nm to 480 nm; said first luminescent material, when excited, emits light having a dominant wavelength in the range of from about 555 nm to about 585 nm; when current is supplied to said first power line, a combination of (1) light exiting said lighting device which was emitted by said first group of solid state light emitters, and (2) light exiting said lighting device which was emitted by said first luminescent material would, in an absence of any additional light, produce a sub-mixture of light having x, y color coordinates which define a point which is within an area on a 1931 CIE Chromaticity Diagram enclosed by first, second, third, fourth and fifth line segments, said first line segment connecting a first point to a second point, said second line segment connecting said second point to a third point, said third line segment connecting said third point to a fourth point, said fourth line segment connecting said fourth point to a fifth point, and said fifth line segment connecting said fifth point to said first point, said first point having x, y coordinates of 0.32, 0.40, said second point having x, y coordinates of 0.36, 0.48, said third point having x, y coordinates of 0.43, 0.45, said fourth point having x, y coordinates of 0.42, 0.42, and said fifth point having x, y coordinates of 0.36, 0.38.
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131. An LCD display device comprising:
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liquid crystals; and at least one light source that comprises at least one non-white luminescent material-converted light emitting diode, wherein light exiting the LCD display device which was emitted by said at least one light source that comprises at least one non-white luminescent material-converted light emitting diode would, in an absence of any additional light, produce light having x, y color coordinates which define a point which is within an area on a 1931 CIE Chromaticity Diagram enclosed by first, second, third, fourth and fifth line segments, said first line segment connecting a first point to a second point, said second line segment connecting said second point to a third point, said third line segment connecting said third point to a fourth point, said fourth line segment connecting said fourth point to a fifth point, and said fifth line segment connecting said fifth point to said first point, said first point having x, y coordinates of 0.32, 0.40, said second point having x, y coordinates of 0.36, 0.48, said third point having x, y coordinates of 0.43, 0.45, said fourth point having x, y coordinates of 0.42, 0.42, and said fifth point having x, y coordinates of 0.36, 0.38.
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132. An LCD display device comprising:
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liquid crystals; and at least one light source that comprises (1) a first group of solid state light emitters that comprises at least a first solid state light emitter and (2) at least a first luminescent material, at least a first portion of light emitted from the first solid state light emitter converted by the first luminescent material and at least a second portion of light emitted from the first solid state light emitter not converted by the first luminescent material, the first portion of light and the second portion of light mixing to form mixed light which, in the absence of any other light, would be non-white light, wherein when the first group of solid state light emitters is illuminated, a combination of (1) light exiting the at least one light source which was emitted by the first group of solid state light emitters, and (2) light exiting the at least one light source which was emitted by the first luminescent material would, in an absence of any additional light, produce a sub-mixture of light having x, y color coordinates which define a point which is within an area on a 1931 CIE Chromaticity Diagram enclosed by first, second, third, fourth and fifth line segments, the first line segment connecting a first point to a second point, the second line segment connecting the second point to a third point, the third line segment connecting the third point to a fourth point, the fourth line segment connecting the fourth point to a fifth point, and the fifth line segment connecting the fifth point to the first point, the first point having x, y coordinates of 0.32, 0.40, the second point having x, y coordinates of 0.36, 0.48, the third point having x, y coordinates of 0.43, 0.45, the fourth point having x, y coordinates of 0.42, 0.42, and the fifth point having x, y coordinates of 0.36, 0.38. - View Dependent Claims (133, 134, 135, 136, 137, 138, 139)
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140. A method of lighting comprising:
illuminating an LCD display device that comprises liquid crystals by illuminating at least one light source that comprises at least one non-white luminescent material-converted light emitting diode.
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141. A method of lighting comprising:
illuminating an LCD display device that comprises liquid crystals by illuminating at least one light source that comprises at least a first luminescent material and a first group of solid state light emitters comprising at least a first solid state light emitter, at least a first portion of light emitted from the first solid state light emitter converted by the first luminescent material and at least a second portion of light emitted from the first solid state light emitter not converted by the first luminescent material, the first portion of light and the second portion of light mixing to form mixed light which, in the absence of any other light, would be non-white light, a combination of (1) light exiting the at least one light source which was emitted by the first group of solid state light emitters, and (2) light exiting the at least one light source which was emitted by the first luminescent material would, in an absence of any additional light, produce a sub-mixture of light having x, y color coordinates which define a point which is within an area on a 1931 CIE Chromaticity Diagram enclosed by first, second, third, fourth and fifth line segments, the first line segment connecting a first point to a second point, the second line segment connecting the second point to a third point, the third line segment connecting the third point to a fourth point, the fourth line segment connecting the fourth point to a fifth point, and the fifth line segment connecting the fifth point to the first point, the first point having x, y coordinates of 0.32, 0.40, the second point having x, y coordinates of 0.36, 0.48, the third point having x, y coordinates of 0.43, 0.45, the fourth point having x, y coordinates of 0.42, 0.42, and the fifth point having x, y coordinates of 0.36, 0.38. - View Dependent Claims (142, 143, 144)
Specification