LIGHTING DEVICE AND LIGHTING METHOD
First Claim
1. A lighting device comprising:
- a first group of solid state light emitters;
a second group of solid state light emitters; and
a first group of lumiphors;
wherein;
each of said first group of solid state light emitters, if illuminated, would emit light having a dominant wavelength in the range of from about 430 nm to about 480 nm;
each of said second group of solid state light emitters, if illuminated, would emit light having a dominant wavelength in the range of from about 430 nm to about 480 nm;
each of said first group of lumiphors, if excited, would emit light having a dominant wavelength in the range of from about 555 nm to about 585 nm, each of said first group of lumiphors being positioned and oriented such that if each of said first group of solid state light emitters is illuminated, each of said first group of lumiphors will be excited by light emitted by at least one of said first group of solid state light emitters;
if each of said first group of solid state light emitters and said second group of solid state light emitters is illuminated, a mixture of (1) light emitted from said lighting device which was emitted by said first group of solid state light emitters, (2) light emitted from said lighting device which was emitted by said first group of lumiphors, and (3) light emitted from said lighting device which was emitted by said second group of solid state light emitters would, in the absence of any additional light, have a 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.
4 Assignments
0 Petitions
Accused Products
Abstract
A lighting device comprising two or more solid state light emitters which emit light in the range of 430 nm to 480 nm and one or more lumiphors which emit light in the range of 555 nm to 585 nm. Also, a lighting device comprising two or more solid state light emitters. The lighting devices make a mixture of light which in the absence of any other light would be within an area defined by coordinates (0.32, 0.40), (0.36, 0.48), (0.43, 0.45), (0.42, 0.42), and (0.36, 0.38). The lighting device may further comprise one or more 600 nm to 630 nm light emitters, and the lighting device may emit light within ten MacAdam ellipses of the blackbody locus. Also, packaged solid state light emitters and methods of lighting.
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Citations
45 Claims
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1. A lighting device comprising:
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a first group of solid state light emitters; a second group of solid state light emitters; and a first group of lumiphors; wherein; each of said first group of solid state light emitters, if illuminated, would emit light having a dominant wavelength in the range of from about 430 nm to about 480 nm; each of said second group of solid state light emitters, if illuminated, would emit light having a dominant wavelength in the range of from about 430 nm to about 480 nm; each of said first group of lumiphors, if excited, would emit light having a dominant wavelength in the range of from about 555 nm to about 585 nm, each of said first group of lumiphors being positioned and oriented such that if each of said first group of solid state light emitters is illuminated, each of said first group of lumiphors will be excited by light emitted by at least one of said first group of solid state light emitters; if each of said first group of solid state light emitters and said second group of solid state light emitters is illuminated, a mixture of (1) light emitted from said lighting device which was emitted by said first group of solid state light emitters, (2) light emitted from said lighting device which was emitted by said first group of lumiphors, and (3) light emitted from said lighting device which was emitted by said second group of solid state light emitters would, in the absence of any additional light, have a 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 (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A lighting device comprising:
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a first group of solid state light emitters; and a second group of solid state light emitters; wherein; if each of said first group of solid state light emitters and said second group of solid state light emitters is illuminated, a mixture of (1) light emitted from said lighting device which was emitted by said first group of solid state light emitters and (2) light emitted from said lighting device which was emitted by said second group of solid state light emitters would, in the absence of any additional light, have a 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 (24, 25, 26, 27, 28, 29, 30)
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31. A method of lighting, comprising:
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illuminating a first group of solid state light emitters, such that each of said first group of solid state light emitters emits light having a dominant wavelength in the range of from about 430 nm to about 480 nm, at least a portion of said light emitted by said first group of solid state light emitters exciting at least some of a first group of lumiphors, such that each of said first group of lumiphors emits light having a dominant wavelength in the range of from about 555 nm to about 585 nm; and illuminating a second group of solid state light emitters, such that each of said second group of solid state light emitters emits light having a dominant wavelength in the range of from about 430 nm to about 480 nm wherein; a mixture of (1) light emitted from said lighting device which was emitted by said first group of solid state light emitters, (2) light emitted from said lighting device which was emitted by said first group of lumiphors, and (3) light emitted from said lighting device which was emitted by said second group of solid state light emitters would, in the absence of any additional light, have a 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 (32, 33, 34, 35, 36, 37, 38, 39)
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40. A method of lighting, comprising:
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illuminating a first group of solid state light emitters; and illuminating a second group of solid state light emitters wherein; a mixture of (1) light emitted from said lighting device which was emitted by said first group of solid state light emitters, and (2) light emitted from said lighting device which was emitted by said second group of solid state light emitters would, in the absence of any additional light, have a 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 (41, 42, 43, 44, 45)
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Specification