Lighting device and lighting method
First Claim
1. A lighting device comprising:
- a first group of solid state light emitters;
a first group of lumiphors; and
a second group of lumiphors;
wherein;
each of said first group of solid state light emitters, if illuminated, would emit light having a peak wavelength in the ultraviolet range;
each of said first group of lumiphors, if excited, 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 lumiphors, if excited, would emit light having a dominant wavelength in the range of from about 555 nm to about 585 nm;
if each of said first 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 lumiphors and (2) light emitted from said lighting device which was emitted by said second group of lumiphors would, in the absence of any additional light, have a first group-second 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.
4 Assignments
0 Petitions
Accused Products
Abstract
A lighting device comprising one or more solid state light emitters which emit ultraviolet light, one or more other emitters which emit light in the range of 430 nm to 480 nm and one or more other emitters which emit light in the range of 555 nm to 585 nm, to make a mixture 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). One or more of the other emitters is a lumiphor. One or more of the other emitters can be a solid state light emitter. 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
69 Claims
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1. A lighting device comprising:
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a first group of solid state light emitters; a first group of lumiphors; and a second group of lumiphors; wherein; each of said first group of solid state light emitters, if illuminated, would emit light having a peak wavelength in the ultraviolet range; each of said first group of lumiphors, if excited, 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 lumiphors, if excited, would emit light having a dominant wavelength in the range of from about 555 nm to about 585 nm; if each of said first 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 lumiphors and (2) light emitted from said lighting device which was emitted by said second group of lumiphors would, in the absence of any additional light, have a first group-second 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 (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, 48)
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28. 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 peak wavelength in the ultraviolet range; 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; if each of said first group of solid state light emitters is illuminated and each of 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 lumiphors 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 first group-second 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 (29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47)
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49. 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 peak wavelength in the ultraviolet range; exciting 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 430 nm to about 480 nm; and exciting a second group of lumiphors, such that each of said second group of lumiphors emits light having a dominant wavelength in the range of from about 555 nm to about 585 nm; wherein; a mixture of (1) light emitted from said lighting device which was emitted by said first group of lumiphors and (2) light emitted from said lighting device which was emitted by said second group of lumiphors would, in the absence of any additional light, have a first group-second 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 (50, 51, 52, 53, 54, 55, 56, 57, 58)
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59. 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 peak wavelength in the ultraviolet range; 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; and exciting 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; wherein; a mixture of (1) light emitted from said lighting device which was emitted by said first group of lumiphors 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 first group-second 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 (60, 61, 62, 63, 64, 65, 66, 67, 68, 69)
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Specification