LIGHTING DEVICE AND LIGHTING METHOD
First Claim
1. A lighting device comprising:
- a first group of solid state light emitters comprising at least one solid state light emitter;
a second group of solid state light emitters comprising at least one solid state light emitter;
at least first and second portions of luminescent material; and
at least a first power line and a second power line,wherein;
if the first group of solid state light emitters is illuminated, a portion of light emitted from the first group of solid state light emitters would excite the first portion of luminescent material, and a mixture of light exiting the lighting device that was emitted from the first group of solid state light emitters and light exiting the lighting device that was emitted from the first portion of luminescent material 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;
if the second group of solid state light emitters is illuminated, a portion of light emitted from the second group of solid state light emitters would excite the second portion of luminescent material, and a mixture of light exiting the lighting device that was emitted from the second group of solid state light emitters and light exiting the lighting device that was emitted from the second portion of luminescent material would, in the absence of any additional light, have a second group mixed illumination corresponding to a second point on the 1931 CIE Chromaticity Diagram,a first ratio comprising a number of solid state light emitters on the first power line that are in the first group of solid state light emitters, divided by a number of solid state light emitters on the first power line that are in the second group of solid state light emitters,a second ratio comprising a number of solid state light emitters on the second power line that are in the first group of solid state light emitters, divided by a number of solid state light emitters on the second power line that are in the second group of solid state light emitters,the first ratio differing from the second ratio.
2 Assignments
0 Petitions
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.
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Citations
25 Claims
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1. A lighting device comprising:
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a first group of solid state light emitters comprising at least one solid state light emitter; a second group of solid state light emitters comprising at least one solid state light emitter; at least first and second portions of luminescent material; and at least a first power line and a second power line, wherein; if the first group of solid state light emitters is illuminated, a portion of light emitted from the first group of solid state light emitters would excite the first portion of luminescent material, and a mixture of light exiting the lighting device that was emitted from the first group of solid state light emitters and light exiting the lighting device that was emitted from the first portion of luminescent material 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; if the second group of solid state light emitters is illuminated, a portion of light emitted from the second group of solid state light emitters would excite the second portion of luminescent material, and a mixture of light exiting the lighting device that was emitted from the second group of solid state light emitters and light exiting the lighting device that was emitted from the second portion of luminescent material would, in the absence of any additional light, have a second group mixed illumination corresponding to a second point on the 1931 CIE Chromaticity Diagram, a first ratio comprising a number of solid state light emitters on the first power line that are in the first group of solid state light emitters, divided by a number of solid state light emitters on the first power line that are in the second group of solid state light emitters, a second ratio comprising a number of solid state light emitters on the second power line that are in the first group of solid state light emitters, divided by a number of solid state light emitters on the second power line that are in the second group of solid state light emitters, the first ratio differing from the second ratio. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A lighting device comprising:
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a first group of solid state light emitters comprising at least one solid state light emitter; a second group of solid state light emitters comprising at least one solid state light emitter; and at least first and second portions of luminescent material, wherein; if the first group of solid state light emitters is illuminated, a portion of light emitted from the first group of solid state light emitters would excite the first portion of luminescent material, and a mixture of light exiting the lighting device that was emitted from the first group of solid state light emitters and light exiting the lighting device that was emitted from the first portion of luminescent material 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; if the second group of solid state light emitters is illuminated, a portion of light emitted from the second group of solid state light emitters would excite the second portion of luminescent material, and a mixture of light exiting the lighting device that was emitted from the second group of solid state light emitters and light exiting the lighting device that was emitted from the second portion of luminescent material would, in the absence of any additional light, have a second group mixed illumination corresponding to a second point on the 1931 CIE Chromaticity Diagram, the first point on the 1931 CIE Chromaticity Diagram is spaced from the blackbody locus, and the second point on the 1931 CIE Chromaticity Diagram is spaced from the blackbody locus. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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21. A lighting device comprising:
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a first group of solid state light emitters comprising at least one solid state light emitter; a second group of solid state light emitters comprising at least one solid state light emitter; and at least first and second portions of luminescent material, wherein; if the first group of solid state light emitters is illuminated, a portion of light emitted from the first group of solid state light emitters would excite the first portion of luminescent material, and a mixture of light exiting the lighting device that was emitted from the first group of solid state light emitters and light exiting the lighting device that was emitted from the first portion of luminescent material 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; if the second group of solid state light emitters is illuminated, a portion of light emitted from the second group of solid state light emitters would excite the second portion of luminescent material, and a mixture of light exiting the lighting device that was emitted from the second group of solid state light emitters and light exiting the lighting device that was emitted from the second portion of luminescent material would, in the absence of any additional light, have a second group mixed illumination corresponding to a second point on the 1931 CIE Chromaticity Diagram, the first point on the 1931 CIE Chromaticity Diagram is above the blackbody locus, and the second point on the 1931 CIE Chromaticity Diagram is below the blackbody locus. - View Dependent Claims (22, 23, 24, 25)
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Specification