Systems and methods for calibrating solid state lighting panels using combined light output measurements
First Claim
1. A calibration system for calibrating a lighting panel comprising a plurality of segments, a respective segment configured to emit a first color of light and a second color of light in response to pulse width modulation control signals having respective duty cycles, the calibration system comprising:
- a calibration controller configured to be coupled to the lighting panel; and
a calibration unit coupled to the calibration controller and comprising a colorimeter,wherein the calibration unit further comprises an XY positioner connected to the colorimeter and configured to move the colorimeter to a measurement location in two dimensions,wherein the calibration controller is configured to activate the plurality of segments to simultaneously emit the first and second colors of light, wherein the calibration unit is configured to measure a combined light output from the plurality of segments at the measurement location to obtain aggregate emission data, and wherein the calibration controller is configured to determine separate emission data for the first and second colors of light based on the aggregate emission data.
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Accused Products
Abstract
A method of calibrating a lighting panel including a plurality of segments, a respective segment configured to emit a first color light and a second color light in response to pulse width modulation control signals having respective duty cycles, includes activating the plurality of segments to simultaneously emit the first and second colors of light. A combined light output for the plurality of segments is measured at a measurement location to obtain aggregate emission data. Separate emission data for the first and second colors of light is determined based on the aggregate emission data. For example, the separate emission data for the first and second colors of light may be derived based on extrapolation of the aggregate emission data and expected emission data for the first and second colors of light. Related calibration systems are also discussed.
143 Citations
9 Claims
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1. A calibration system for calibrating a lighting panel comprising a plurality of segments, a respective segment configured to emit a first color of light and a second color of light in response to pulse width modulation control signals having respective duty cycles, the calibration system comprising:
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a calibration controller configured to be coupled to the lighting panel; and a calibration unit coupled to the calibration controller and comprising a colorimeter, wherein the calibration unit further comprises an XY positioner connected to the colorimeter and configured to move the colorimeter to a measurement location in two dimensions, wherein the calibration controller is configured to activate the plurality of segments to simultaneously emit the first and second colors of light, wherein the calibration unit is configured to measure a combined light output from the plurality of segments at the measurement location to obtain aggregate emission data, and wherein the calibration controller is configured to determine separate emission data for the first and second colors of light based on the aggregate emission data. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A calibration system for calibrating a lighting panel comprising a plurality of segments, a respective segment configured to emit a first color of light and a second color of light in response to pulse width modulation control signals having respective duty cycles, the calibration system comprising:
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a calibration controller configured to be coupled to the lighting panel; and a calibration unit coupled to the calibration controller, wherein the calibration unit comprises; a colorimeter; an enclosure having an entrance; a conveyor extending from outside the enclosure to inside the enclosure through the entrance; and a pallet on the conveyor and configured to hold the lighting panel during calibration; wherein the conveyor and the pallet are configured to bring the lighting panel into enclosure, and wherein the colorimeter is positioned within the enclosure so as to detect a combined light output emitted from the plurality of segments of the lighting panel, wherein the calibration controller is configured to activate the plurality of segments to simultaneously emit the first and second colors of light, wherein the calibration unit is configured to measure the combined light output from the plurality of segments at a measurement location to obtain aggregate emission data, and wherein the calibration controller is configured to determine separate emission data for the first and second colors of light based on the aggregate emission data.
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Specification