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;
a second group of solid state light emitters;
a second group of lumiphors; and
a third group of solid state light emitters;
wherein;
each of said first group of solid state light emitters and each of said second group of solid state light emitters, if illuminated, would emit light having a peak wavelength in the range of from 430 nm to 480 nm;
each of said first group of lumiphors and 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; and
if each of said first group of solid state light emitters is illuminated and each of said first group of lumiphors is excited, a mixture of light emitted from said first group of solid state light emitters and said first group of lumiphors would, in the absence of any additional light, have a first group mixed illumination corresponding to a first point on a 1931 CIE Chromaticity Diagram, said first point having a first correlated color temperature;
if each of said second group of solid state light emitters is illuminated and each of said second group of lumiphors is excited, a mixture of light emitted from said second group of solid state light emitters and said second group of lumiphors would, in the absence of any additional light, have a second group mixed illumination corresponding to a second point on a 1931 CIE Chromaticity Diagram, said second point has a second correlated color temperature, said first correlated color temperature differs from said second correlated color temperature by at least 50 K; and
each of said third group of solid state light emitters, if illuminated, would emit light having a dominant wavelength in the range of from 600 nm to 630 nm.
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Accused Products
Abstract
A lighting device comprising first and second groups of solid state light emitters, which emit light having peak wavelength in ranges of from 430 nm to 480 nm, and first and second groups of lumiphors which emit light having dominant wavelength in the range of 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 have a correlated color temperature which differs by at least 50 K from a correlated color temperature which would be emitted by a combination of (3) light exiting the lighting device which was emitted by the second group of emitters, and (4) light exiting the lighting device which was emitted by the second group of lumiphors.
267 Citations
545 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;
a second group of solid state light emitters;
a second group of lumiphors; and
a third group of solid state light emitters;
wherein;
each of said first group of solid state light emitters and each of said second group of solid state light emitters, if illuminated, would emit light having a peak wavelength in the range of from 430 nm to 480 nm;
each of said first group of lumiphors and 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; and
if each of said first group of solid state light emitters is illuminated and each of said first group of lumiphors is excited, a mixture of light emitted from said first group of solid state light emitters and said first group of lumiphors would, in the absence of any additional light, have a first group mixed illumination corresponding to a first point on a 1931 CIE Chromaticity Diagram, said first point having a first correlated color temperature;
if each of said second group of solid state light emitters is illuminated and each of said second group of lumiphors is excited, a mixture of light emitted from said second group of solid state light emitters and said second group of lumiphors would, in the absence of any additional light, have a second group mixed illumination corresponding to a second point on a 1931 CIE Chromaticity Diagram, said second point has a second correlated color temperature, said first correlated color temperature differs from said second correlated color temperature by at least 50 K; and
each of said third group of solid state light emitters, if illuminated, would emit light having a dominant wavelength in the range of from 600 nm to 630 nm. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 484, 489, 494, 495, 496, 509, 514, 519, 523, 524, 531, 536, 541)
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15. A lighting device comprising:
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a first group of solid state light emitters;
a first group of lumiphors;
a second group of solid state light emitters;
a second group of lumiphors; and
a third group of solid state light emitters;
wherein;
each of said first group of solid state light emitters and each of said second group of solid state light emitters, if illuminated, would emit light having a peak wavelength in the range of from 430 nm to 480 nm;
each of said first group of lumiphors and 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; and
if each of said first group of solid state light emitters is illuminated and each of said first group of lumiphors is excited, a mixture of light emitted from said first group of solid state light emitters and said first group of lumiphors would have a first group mixed illumination corresponding to a first point on a 1931 CIE Chromaticity Diagram, said first point having a first correlated color temperature;
if each of said second group of solid state light emitters is illuminated and each of said second group of lumiphors is excited, a mixture of light emitted from said second group of solid state light emitters and said second group of lumiphors would have a second group mixed illumination corresponding to a second point on a 1931 CIE Chromaticity Diagram, said second point has a second correlated color temperature, said first correlated color temperature differs from said second correlated color temperature by at least 50 K;
each of said third group of solid state light emitters, if illuminated, would emit light having a dominant wavelength in the range of from 600 nm to 630 nm; and
if each of said first group of solid state light emitters is illuminated, each of said first group of lumiphors is excited, each of said second group of solid state light emitters is excited and each of said second group of lumiphors is excited, a mixture of light emitted from said first group of solid state light emitters, said first group of lumiphors, said second group of solid state light emitters and said second group of lumiphors, in the absence of any other light, would have a first group-second group mixed illumination which, in the absence of any other light, would have x, y color coordinates which are 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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16-49. -49. (canceled)
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50. A lighting device comprising:
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a first group of solid state light emitters;
a first group of lumiphors;
a second group of solid state light emitters;
a second group of lumiphors; and
a third group of solid state light emitters;
wherein;
each of said first group of solid state light emitters and each of said second group of solid state light emitters, if illuminated, would emit light having a peak wavelength in the range of from 430 nm to 480 nm;
each of said first group of lumiphors and 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; and
if each of said first group of solid state light emitters is illuminated and each of said first group of lumiphors is excited, a mixture of light emitted from said first group of solid state light emitters and said first group of lumiphors would, in the absence of any additional light, have a first group mixed illumination corresponding to a first point on a 1931 CIE Chromaticity Diagram, said first point having a first correlated color temperature;
if each of said second group of solid state light emitters is illuminated and each of said second group of lumiphors is excited, a mixture of light emitted from said second group of solid state light emitters and said second group of lumiphors would, in the absence of any additional light, have a second group mixed illumination corresponding to a second point on a 1931 CIE Chromaticity Diagram, said second point has a second correlated color temperature, said first correlated color temperature differing from said second correlated color temperature by at least 50 K;
each of said third group of solid state light emitters, if illuminated, would emit light having a dominant wavelength in the range of from 600 nm to 630 nm; and
if each of said first group of solid state light emitters and each of said second group of solid state light emitters is illuminated, a mixture of light emitted from said first group of solid state light emitters, from said second group of solid state light emitters, from said first group of lumiphors and from said second group of lumiphors would have a first group-second group mixed illumination which, in the absence of any other light, would have x, y color coordinates which are 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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51-61. -61. (canceled)
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62. A lighting device comprising:
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a first group of solid state light emitters;
a first group of lumiphors;
a second group of solid state light emitters;
a second group of lumiphors; and
a third group of solid state light emitters;
at least one power line directly or switchably electrically connected to said lighting device, wherein;
each of said first group of solid state light emitters and each of said second group of solid state light emitters, if illuminated, would emit light having a peak wavelength in the range of from 430 nm to 480 nm;
each of said first group of lumiphors and 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 and each of said first group of lumiphors is excited, a mixture of light emitted from said first group of solid state light emitters and said first group of lumiphors would, in the absence of any additional light, have a first group mixed illumination corresponding to a first point on a 1931 CIE Chromaticity Diagram, said first point having a first correlated color temperature;
if each of said second group of solid state light emitters is illuminated and each of said second group of lumiphors is excited, a mixture of light emitted from said second group of solid state light emitters and said second group of lumiphors would, in the absence of any additional light, have a second group mixed illumination corresponding to a second point on a 1931 CIE Chromaticity Diagram, said second point has a second correlated color temperature, said first correlated color temperature differing from said second correlated color temperature by at least 50 K;
each of said third group of solid state light emitters, if illuminated, would emit light having a dominant wavelength in the range of from 600 nm to 630 nm; and
if power is supplied to at least one of said at least one power line, a mixture of light emitted from said first group of solid state light emitters, from said second group of solid state light emitters, from said first group of lumiphors and from said second group of lumiphors would have a first group-second group mixed illumination which, in the absence of any other light, would have x, y color coordinates which are 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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63-82. -82. (canceled)
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83. A lighting device comprising:
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a first group of solid state light emitters;
a first group of lumiphors;
a second group of solid state light emitters;
a second group of lumiphors; and
a third group of solid state light emitters;
wherein;
each of said first group of solid state light emitters and each of said second group of solid state light emitters, if illuminated, would emit light having a peak wavelength in the range of from 430 nm to 480 nm;
each of said first group of lumiphors and 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; and
if each of said first group of solid state light emitters is illuminated and each of said first group of lumiphors is excited, a mixture of light emitted from said first group of solid state light emitters and said first group of lumiphors would have a first group mixed illumination corresponding to a first point on a 1931 CIE Chromaticity Diagram, said first point having a first correlated color temperature;
if each of said second group of solid state light emitters is illuminated and each of said second group of lumiphors is excited, a mixture of light emitted from said second group of solid state light emitters and said second group of lumiphors would have a second group mixed illumination corresponding to a second point on a 1931 CIE Chromaticity Diagram, said second point has a second correlated color temperature, said first correlated color temperature differs from said second correlated color temperature by at least 50 K;
each of said third group of solid state light emitters, if illuminated, would emit light having a dominant wavelength in the range of from 600 nm to 630 nm;
and wherein;
if (1) each of said first group of solid state light emitters is illuminated, (2) each of said first group of lumiphors is excited, (3) each of said first group of solid state light emitters is illuminated, (4) each of said first group of lumiphors is excited, and (5) each of said third group of solid state light emitters is illuminated, a mixture of light emitted from said first group of solid state light emitters, from said first group of lumiphors, from said second group of solid state light emitters, from said second group of lumiphors and from said third group of solid state light emitters would produce a first group-second group-third group mixed illumination having x, y coordinates on a 1931 CIE Chromaticity Diagram which define a point which is within twenty MacAdam ellipses of at least one point within the range of from about 2200 K to about 4500 K on the blackbody locus on a 1931 CIE Chromaticity Diagram. - View Dependent Claims (84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126, 127, 128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143, 144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 485, 490, 497, 498, 499, 510, 515, 520, 525, 532, 537, 542)
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154. A lighting device comprising:
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a first group of solid state light emitters;
a first group of lumiphors;
a second group of solid state light emitters;
a second group of lumiphors; and
a third group of solid state light emitters;
wherein;
each of said first group of solid state light emitters and each of said second group of solid state light emitters, if illuminated, would emit light having a peak wavelength in the range of from 430 nm to 480 nm;
each of said first group of lumiphors and 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; and
if each of said first group of solid state light emitters is illuminated and each of said first group of lumiphors is excited, a mixture of light emitted from said first group of solid state light emitters and said first group of lumiphors would, in the absence of any additional light, have a first group mixed illumination corresponding to a first point on a 1931 CIE Chromaticity Diagram, said first point having a first correlated color temperature;
if each of said second group of solid state light emitters is illuminated and each of said second group of lumiphors is excited, a mixture of light emitted from said second group of solid state light emitters and said second group of lumiphors would, in the absence of any additional light, have a second group mixed illumination corresponding to a second point on a 1931 CIE Chromaticity Diagram, said second point has a second correlated color temperature, said first correlated color temperature differing from said second correlated color temperature by at least 50 K;
each of said third group of solid state light emitters, if illuminated, would emit light having a dominant wavelength in the range of from 600 nm to 630 nm;
and wherein;
if each of said first group of solid state light emitters is illuminated, each of said second group of solid state light emitters is illuminated, and each of said third group of solid state light emitters is illuminated, a mixture of light emitted from said first group of solid state light emitters, light emitted from said first group of lumiphors, light emitted from said second group of solid state light emitters, light emitted from said second group of lumiphors and light emitted from said third group of solid state light emitters would produce a first group-second group-third group mixed illumination having x, y coordinates on a 1931 CIE Chromaticity Diagram which define a point which is within twenty MacAdam ellipses of at least one point within the range of from about 2200 K to about 4500 K on the blackbody locus on a 1931 CIE Chromaticity Diagram.
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155-180. -180. (canceled)
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181. A lighting device comprising:
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a first group of solid state light emitters;
a first group of lumiphors;
a second group of solid state light emitters;
a second group of lumiphors; and
a third group of solid state light emitters;
at least one power line directly or switchably electrically connected to said lighting device, wherein;
each of said first group of solid state light emitters and each of said second group of solid state light emitters, if illuminated, would emit light having a peak wavelength in the range of from 430 nm to 480 nm;
each of said first group of lumiphors and 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 and each of said first group of lumiphors is excited, a mixture of light emitted from said first group of solid state light emitters and said first group of lumiphors would, in the absence of any additional light, have a first group mixed illumination corresponding to a first point on a 1931 CIE Chromaticity Diagram, said first point having a first correlated color temperature;
if each of said second group of solid state light emitters is illuminated and each of said second group of lumiphors is excited, a mixture of light emitted from said second group of solid state light emitters and said second group of lumiphors would, in the absence of any additional light, have a second group mixed illumination corresponding to a second point on a 1931 CIE Chromaticity Diagram, said second point has a second correlated color temperature, said first correlated color temperature differing from said second correlated color temperature by at least 50 K;
each of said third group of solid state light emitters, if illuminated, would emit light having a dominant wavelength in the range of from 600 nm to 630 nm; and
if power is supplied to at least one of said at least one power line, a mixture of light emitted from said first group of solid state light emitters, from said first group of lumiphors, from said second group of solid state light emitters, from said second group of lumiphors and from said third group of solid state light emitters would produce a first group-second group-third group mixed illumination having x, y coordinates on a 1931 CIE Chromaticity Diagram which define a point which is within twenty MacAdam ellipses of at least one point within the range of from about 2200 K to about 4500 K on the blackbody locus on a 1931 CIE Chromaticity Diagram. - View Dependent Claims (182, 183, 184, 185, 186, 187, 188, 189, 190, 191, 192, 193, 194, 195, 196, 197, 198, 199, 200, 201, 202, 203, 204, 205, 206, 486, 491, 500, 501, 502, 511, 516, 521, 526, 533, 538, 543)
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207-382. -382. (canceled)
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383. A lighting device comprising:
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a first group of solid state light emitters;
a first group of lumiphors;
a second group of solid state light emitters; and
a second group of lumiphors, wherein;
each of said first group of solid state light emitters and each of said second group of solid state light emitters, if illuminated, would emit light having a peak wavelength in the range of from 430 nm to 480 nm;
each of said first group of lumiphors and 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; and
if each of said first group of solid state light emitters is illuminated and each of said first group of lumiphors is excited, a mixture of light emitted from said first group of solid state light emitters and said first group of lumiphors would, in the absence of any additional light, have a first group mixed illumination corresponding to a first point on a 1931 CIE Chromaticity Diagram, said first point having a first correlated color temperature;
if each of said second group of solid state light emitters is illuminated and each of said second group of lumiphors is excited, a mixture of light emitted from said second group of solid state light emitters and said second group of lumiphors would, in the absence of any additional light, have a second group mixed illumination corresponding to a second point on a 1931 CIE Chromaticity Diagram, said second point has a second correlated color temperature; and
said first correlated color temperature differs from said second correlated color temperature by at least 50 K. - View Dependent Claims (384, 385, 386, 387, 388, 389, 390, 391, 392, 393, 394, 395, 396, 397, 398, 399, 400, 401, 402, 403, 404, 405, 406, 407, 408, 409, 410, 487, 492, 503, 504, 505, 512, 517, 522, 527, 534, 539, 544)
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411. A lighting device comprising:
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a first group of solid state light emitters;
a first group of lumiphors;
a second group of solid state light emitters; and
a second group of lumiphors, wherein;
each of said first group of solid state light emitters and each of said second group of solid state light emitters, if illuminated, would emit light having a peak wavelength in the range of from 430 nm to 480 nm;
each of said first group of lumiphors and 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; and
if each of said first group of solid state light emitters is illuminated and each of said first group of lumiphors is excited, a mixture of light emitted from said first group of solid state light emitters and said first group of lumiphors would, in the absence of any additional light, have a first group mixed illumination corresponding to a first point on a 1931 CIE Chromaticity Diagram, said first point having a first correlated color temperature;
if each of said second group of solid state light emitters is illuminated and each of said second group of lumiphors is excited, a mixture of light emitted from said second group of solid state light emitters and said second group of lumiphors would, in the absence of any additional light, have a second group mixed illumination corresponding to a second point on a 1931 CIE Chromaticity Diagram, said second point has a second correlated color temperature, said first correlated color temperature differing from said second correlated color temperature by at least 50 K; and
if each of said first group of solid state light emitters and each of said second group of solid state light emitters is illuminated, a mixture of light emitted from said first group of solid state light emitters, from said second group of solid state light emitters, from said first group of lumiphors and from said second group of lumiphors would have a first group-second group mixed illumination which, in the absence of any other light, would have x, y color coordinates which are 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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412-418. -418. (canceled)
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419. A lighting device comprising:
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a first group of solid state light emitters;
a first group of lumiphors;
a second group of solid state light emitters; and
a second group of lumiphors, at least one power line directly or switchably electrically connected to said lighting device, wherein;
each of said first group of solid state light emitters and each of said second group of solid state light emitters, if illuminated, would emit light having a peak wavelength in the range of from 430 nm to 480 nm;
each of said first group of lumiphors and 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 and each of said first group of lumiphors is excited, a mixture of light emitted from said first group of solid state light emitters and said first group of lumiphors would, in the absence of any additional light, have a first group mixed illumination corresponding to a first point on a 1931 CIE Chromaticity Diagram, said first point having a first correlated color temperature;
if each of said second group of solid state light emitters is illuminated and each of said second group of lumiphors is excited, a mixture of light emitted from said second group of solid state light emitters and said second group of lumiphors would, in the absence of any additional light, have a second group mixed illumination corresponding to a second point on a 1931 CIE Chromaticity Diagram, said second point has a second correlated color temperature, said first correlated color temperature differing from said second correlated color temperature by at least 50 K; and
if power is supplied to at least one of said at least one power line, a mixture of light emitted from said first group of solid state light emitters, from said second group of solid state light emitters, from said first group of lumiphors and from said second group of lumiphors would have a first group-second group mixed illumination which, in the absence of any other light, would have x, y color coordinates which are 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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420-458. -458. (canceled)
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459. A method of lighting, comprising:
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mixing light from a first group of at least one solid state light emitter, light from a first group of at least one lumiphor, light from a second group of at least one solid state light emitter, light from a second group of at least one lumiphor and light from a third group of at least one solid state light emitter to form mixed light;
said light from each of said first group of at least one solid state light emitter and said light from each of said second group of at least one solid state light emitter having a peak wavelength in the range of from 430 nm to 480 nm;
said light from each of said first group of at least one lumiphor and said light from each of said second group of at least one lumiphor having a dominant wavelength in the range of from 555 nm to 585 nm;
said light from each of said third group of at least one solid state light emitter having a dominant wavelength in the range of from 600 nm to 630 nm;
wherein;
said light from said first group of solid state light emitters and said light from said first group of lumiphors, if mixed in the absence of any other light, would have a first group mixed illumination corresponding to a first point on a 1931 CIE Chromaticity Diagram, said first point having a first correlated color temperature;
said light from said second group of solid state light emitters and said light from said second group of lumiphors, if mixed in the absence of any other light, would have a second group mixed illumination corresponding to a second point on a 1931 CIE Chromaticity Diagram, said second point having a second correlated color temperature, said first correlated color temperature differing from said second correlated color temperature by at least 50 K. - View Dependent Claims (460, 461, 462, 463, 464, 465, 466, 467, 468, 469, 470, 529)
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471. A method of lighting, comprising:
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mixing light from a first group of at least one solid state light emitter, light from a first group of at least one lumiphor, light from a second group of at least one solid state light emitter and light from a second group of at least one lumiphor to form mixed light;
said light from each of said first group of at least one solid state light emitter and said light from each of said second group of at least one solid state light emitter having a peak wavelength in the range of from 430 nm to 480 nm;
said light from each of said first group of at least one lumiphor and said light from each of said second group of at least one lumiphor having a dominant wavelength in the range of from 555 nm to 585 nm;
wherein;
said light from said first group of solid state light emitters and said light from said first group of lumiphors, if mixed in the absence of any other light, would have a first group mixed illumination corresponding to a first point on a 1931 CIE Chromaticity Diagram, said first point having a first correlated color temperature;
said light from said second group of solid state light emitters and said light from said second group of lumiphors, if mixed in the absence of any other light, would have a second group mixed illumination corresponding to a second point on a 1931 CIE Chromaticity Diagram, said second point having a second correlated color temperature, said first correlated color temperature differing from said second correlated color temperature by at least 50 K. - View Dependent Claims (472, 473, 474, 475, 476, 477, 478, 530)
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479-482. -482. (canceled)
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483. A lighting device comprising:
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a first group of solid state light emitters;
a first group of lumiphors;
a second group of solid state light emitters; and
a second group of lumiphors;
wherein;
each of said first group of solid state light emitters and each of said second group of solid state light emitters, if illuminated, would emit light having a peak wavelength in the range of from 430 nm to 480 nm;
each of said first group of lumiphors and 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; and
if each of said first group of solid state light emitters is illuminated and each of said first group of lumiphors is excited, a mixture of light emitted from said first group of solid state light emitters and said first group of lumiphors would have a first group mixed illumination corresponding to a first point on a 1931 CIE Chromaticity Diagram, said first point having a first correlated color temperature;
if each of said second group of solid state light emitters is illuminated and each of said second group of lumiphors is excited, a mixture of light emitted from said second group of solid state light emitters and said second group of lumiphors would have a second group mixed illumination corresponding to a second point on a 1931 CIE Chromaticity Diagram, said second point has a second correlated color temperature, said first correlated color temperature differs from said second correlated color temperature by at least 50 K; and
if each of said first group of solid state light emitters is illuminated, each of said first group of lumiphors is excited, each of said second group of solid state light emitters is excited and each of said second group of lumiphors is excited, a mixture of light emitted from said first group of solid state light emitters, said first group of lumiphors, said second group of solid state light emitters and said second group of lumiphors, in the absence of any other light, would have a first group-second group mixed illumination which, in the absence of any other light, would have x, y color coordinates which are 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 (488, 493, 506, 507, 508, 513, 518, 528, 535, 540, 545)
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Specification