ARRANGEMENT OF SOLID STATE LIGHT SOURCES AND LAMP USING SAME
First Claim
1. An arrangement of solid state light sources, comprising:
- a substrate; and
a plurality of solid state light source sets arranged on respective solid state light source regions of the substrate, each of the solid state light source sets including a first color solid state light source chip and a second color solid state light source chip coupled to the substrate and arranged immediately adjacent to each other, the first color solid state light source chip being configured to emit light of a first wavelength, the second color solid state light source chip being configured to emit light of a second wavelength different than the first color solid state light source chip, wherein each of the solid state light source sets is immediately adjacent at least two other solid state light source sets, wherein the solid state light source chips in at least one of the solid state light source sets are skewed relative to the solid state light source chips in at least another of the solid state light source sets, and wherein at least a subset of the solid state light source chips is located on an imaginary circle and at least a subset of the solid state light source chips is located inside of the imaginary circle.
1 Assignment
0 Petitions
Accused Products
Abstract
Arrangements of solid state light sources for color-mixing, and light sources including the same, are provided. A substrate has and a plurality of different color LED chips coupled thereto. The emitted light is mixed to produce a white light output. The LED chips are arranged on the substrate in a manner that improves color-mixing, for example, by forming LED sets including one or more LED chips of different colors, by skewing the LED chips, and/or by forming a non-rectangular array or a circular array of LED sets and/or chips. The color-mixing LED arrangement may be used in a lamp or other light source together with collimating optics to collimate and further mix the color-mixed light output from the LED arrangement. The color-mixing LED arrangement may be provided as a single package with multiple LED chips or as multiple packages of one or more LED chips.
34 Citations
15 Claims
-
1. An arrangement of solid state light sources, comprising:
-
a substrate; and a plurality of solid state light source sets arranged on respective solid state light source regions of the substrate, each of the solid state light source sets including a first color solid state light source chip and a second color solid state light source chip coupled to the substrate and arranged immediately adjacent to each other, the first color solid state light source chip being configured to emit light of a first wavelength, the second color solid state light source chip being configured to emit light of a second wavelength different than the first color solid state light source chip, wherein each of the solid state light source sets is immediately adjacent at least two other solid state light source sets, wherein the solid state light source chips in at least one of the solid state light source sets are skewed relative to the solid state light source chips in at least another of the solid state light source sets, and wherein at least a subset of the solid state light source chips is located on an imaginary circle and at least a subset of the solid state light source chips is located inside of the imaginary circle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
-
-
14. A light source, comprising:
-
a substrate, wherein the substrate includes a plurality of solid state light source regions and a plurality of solid state light source sets, wherein each set in the plurality of solid state light source sets is arranged on a respective solid state light source region in the plurality of solid state light source regions, wherein each of the solid state light source sets includes a first color solid state light source chip and a second color solid state light source chip coupled to the substrate and arranged immediately adjacent to each other, the first color solid state light source chip configured to emit light of a first wavelength, the second color solid state light source chip being configured to emit light of a second wavelength different than the first wavelength, wherein each of the solid state light source sets is immediately adjacent at least two other solid state light source sets in the plurality of solid state light source sets, wherein the solid state light source chips in at least one of the solid state light source sets in the plurality of solid state light source sets are skewed relative to the solid state light source chips in at least another of the solid state light source sets, and wherein a subset of the solid state light source chips is located on an imaginary circle on the substrate and a subset of the solid state light source chips is located inside of the imaginary circle on the substrate; an optical system configured to collimate light emitted from the plurality of solid state light source sets; and a housing, wherein the housing at least partially surrounds the substrate and the optical system. - View Dependent Claims (15)
-
Specification