Regulation of wavelength shift and perceived color of solid state lighting with temperature variation
First Claim
1. An illumination control method for a solid state lighting system with compensation for spectral changes due to temperature variation, the method comprising:
- determining a temperature associated with the solid state lighting system, wherein the solid state lighting system is configured to have a first emitted spectrum at a selected intensity and at a selected temperature, wherein a first electrical biasing for the solid state lighting system produces a first wavelength shift, and wherein a second electrical biasing for the solid state lighting produces a second, opposing wavelength shift; and
providing a combined first electrical biasing and second electrical biasing to the solid state lighting system to generate emitted light having a second emitted spectrum over a predetermined range of temperatures and within a predetermined variance of the first emitted spectrum.
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Accused Products
Abstract
Representative embodiments of the disclosure provide a system, apparatus, and method of controlling an intensity and spectrum of light emitted from a solid state lighting system. The solid state lighting system has a first emitted spectrum at full intensity and at a selected temperature, with a first electrical biasing for the solid state lighting system producing a first wavelength shift, and a second electrical biasing for the solid state lighting system producing a second, opposing wavelength shift. Representative embodiments provide for receiving information designating a selected intensity level or a selected temperature and providing a combined first electrical biasing and second electrical biasing to the solid state lighting system to generate emitted light having the selected intensity level and having a second emitted spectrum within a predetermined variance of the first emitted spectrum over a predetermined range of temperatures.
61 Citations
72 Claims
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1. An illumination control method for a solid state lighting system with compensation for spectral changes due to temperature variation, the method comprising:
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determining a temperature associated with the solid state lighting system, wherein the solid state lighting system is configured to have a first emitted spectrum at a selected intensity and at a selected temperature, wherein a first electrical biasing for the solid state lighting system produces a first wavelength shift, and wherein a second electrical biasing for the solid state lighting produces a second, opposing wavelength shift; and providing a combined first electrical biasing and second electrical biasing to the solid state lighting system to generate emitted light having a second emitted spectrum over a predetermined range of temperatures and within a predetermined variance of the first emitted spectrum. - 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, 28, 29, 30, 31, 32, 33, 34, 35, 36)
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37. A computer-readable storage medium having stored thereon computer-executable instructions that, in response to execution by a computer, cause the computer to:
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determine a temperature associated with the solid state lighting system, wherein the solid state lighting system is configured to have a first emitted spectrum at a selected intensity and at a selected temperature, wherein a first electrical biasing for the solid state lighting system produces a first wavelength shift, and wherein a second electrical biasing for the solid state lighting produces a second, opposing wavelength shift; and provide a combined first electrical biasing and second electrical biasing to the solid state lighting system to generate emitted light having a second emitted spectrum over a predetermined range of temperatures and within a predetermined variance of the first emitted spectrum. - View Dependent Claims (38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72)
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Specification