LIGHTING DEVICE AND LIGHTING METHOD
First Claim
1. A lighting device comprising:
- at least one light source which, when illuminated, emits light which, in an absence of any additional light, has x, y color coordinates which define a point which is within a first 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; and
a first group of solid state light emitters, the first group of solid state light emitters comprising at least a first solid state light emitter, each of the first group of light emitters, when illuminated, emitting light having a dominant emission wavelength in the range of from about 600 nm to about 630 nm.
4 Assignments
0 Petitions
Accused Products
Abstract
There is provided a lighting device that comprises at least one 600-630 nm solid state light emitter and at least one light source emitting light within an area on a 1931 CIE Chromaticity Diagram defined by a first set of points having x, y coordinates of (0.32, 0.40), (0.36, 0.48), (0.43, 0.45), (0.42, 0.42), (0.36, 0.38), or a second set of points having x, y coordinates of (0.29, 0.36), (0.32, 0.35), (0.41, 0.43), (0.44, 0.49), (0.38, 0.53). Some embodiments further comprise at least a first power line. Also provided are methods that comprise illuminating at least one light source to emit light within one of the areas defined above, and illuminating at least one 600-630 nm emitter.
167 Citations
40 Claims
-
1. A lighting device comprising:
-
at least one light source which, when illuminated, emits light which, in an absence of any additional light, has x, y color coordinates which define a point which is within a first 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; and a first group of solid state light emitters, the first group of solid state light emitters comprising at least a first solid state light emitter, each of the first group of light emitters, when illuminated, emitting light having a dominant emission wavelength in the range of from about 600 nm to about 630 nm. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
-
-
16. A lighting device comprising:
-
at least one light source which, when illuminated, emits light which, in an absence of any additional light, has x, y color coordinates which define a point which is within a second 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 0.29, 0.36, the second point having x, y coordinates of 0.32, 0.35, the third point having x, y coordinates of 0.41, 0.43, the fourth point having x, y coordinates of 0.44, 0.49, and the fifth point having x, y coordinates of 0.38, 0.53; and a first group of solid state light emitters, the first group of solid state light emitters comprising at least a first solid state light emitter, each of the first group of light emitters, when illuminated, emits light having a dominant emission wavelength in the range of from about 600 nm to about 630 nm. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
-
-
31. A lighting device comprising:
-
at least one light source which, when illuminated, emits light which, in an absence of any additional light, has x, y color coordinates which define a point which is within a first 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; a first group of solid state light emitters, the first group of solid state light emitters comprising at least a first solid state light emitter, each of the first group of light emitters, when illuminated, emitting light having a dominant emission wavelength in the range of from about 600 nm to about 630 nm; and at least a first power line, each of the at least one light source and each of the first group of solid state light emitters being electrically connected to the first power line, wherein; if current is supplied to the first power line, a combination of (1) light exiting the lighting device which was emitted by the at least one light source, and (2) light exiting the lighting device which was emitted by the first group of solid state light emitters would, in an absence of any additional light, produce a mixed illumination which defines a point which is within 10 MacAdam ellipses of at least one point on the blackbody locus on a 1931 CE Chromaticity Diagram.
-
-
32. A lighting device comprising:
-
at least one light source which, when illuminated, emits light which, in an absence of any additional light, has x, y color coordinates which define a point which is within a second 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 0.29, 0.36, the second point having x, y coordinates of 0.32, 0.35, the third point having x, y coordinates of 0.41, 0.43, the fourth point having x, y coordinates of 0.44, 0.49, and the fifth point having x, y coordinates of 0.38, 0.53; a first group of solid state light emitters, the first group of solid state light emitters comprising at least a first solid state light emitter, each of the first group of light emitters, when illuminated, emitting light having a dominant emission wavelength in the range of from about 600 nm to about 630 nm; and at least a first power line, each of the at least one light source and each of the first group of solid state light emitters being electrically connected to the first power line, wherein; if current is supplied to the first power line, a combination of (1) light exiting the lighting device which was emitted by the at least one light source, and (2) light exiting the lighting device which was emitted by the first group of solid state light emitters would, in an absence of any additional light, produce a mixed illumination which defines a point which is within 10 MacAdam ellipses of at least one point on the blackbody locus on a 1931 CIE Chromaticity Diagram.
-
-
33. A method comprising:
-
illuminating at least one light source to emit light which, in an absence of any additional light, has x, y color coordinates which define a point which is within a first 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; and illuminating a first group of solid state light emitters, the first group of solid state light emitters comprising at least one solid state light emitter, to emit light having a wavelength in the range of from about 600 nm to about 630 nm. - View Dependent Claims (34, 35, 36)
-
-
37. A method comprising:
-
illuminating at least one light source to emit light which, in an absence of any additional light, has x, y color coordinates which define a point which is within a second 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 0.29, 0.36, the second point having x, y coordinates of 0.32, 0.35, the third point having x, y coordinates of 0.41, 0.43, the fourth point having x, y coordinates of 0.44, 0.49, and the fifth point having x, y coordinates of 0.38, 0.53; and illuminating a first group of solid state light emitters, the first group of solid state light emitters comprising at least one solid state light emitter, to emit light having a wavelength in the range of from about 600 nm to about 630 nm. - View Dependent Claims (38, 39, 40)
-
Specification