SYSTEMS AND METHODS FOR SAMPLING LIGHT PRODUCED FROM AN LED ARRAY
First Claim
1. A method, comprising:
- producing light from an LED array, wherein the LED array includes a plurality of LEDs;
directing the light from the LED array to an optical plate, wherein a substantial portion of the light passes through the optical plate;
sampling a portion of the light from the LED array, wherein sampling includes reflecting the sampled portion of the light into a mixing chamber, and mixing the light within the mixing chamber; and
sensing the mixed, sampled portion of the light.
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Accused Products
Abstract
A system embodiment comprises and LED array, an optical plane, optics, a sensor and a controller. The LED array is configured to generate LED light. The optical plane has a plurality of scattering features and with a mixing chamber. The optics is configured to direct the LED light to the optical plane. The plurality of scattering features are configured to reflect a sampled portion of the LED light into the mixing chamber. The mixing chamber is configured to mix the sampled portion of the LED light. The sensor is configured to sense the sampled portion of the LED light received from the mixing chamber. The controller is connected to the sensor and configured to control the LED array using the sensed, sampled portion of the LED light received from the mixing chamber.
15 Citations
20 Claims
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1. A method, comprising:
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producing light from an LED array, wherein the LED array includes a plurality of LEDs; directing the light from the LED array to an optical plate, wherein a substantial portion of the light passes through the optical plate; sampling a portion of the light from the LED array, wherein sampling includes reflecting the sampled portion of the light into a mixing chamber, and mixing the light within the mixing chamber; and sensing the mixed, sampled portion of the light. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A system, comprising:
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an LED array configured to generate LED light; an optical plane with a plurality of scattering features and with a mixing chamber; optics configured to direct the LED light to the optical plane, wherein a substantial portion of the LED light passes through the optical plane, wherein the plurality of scattering features are configured to reflect a sampled portion of the LED light into the mixing chamber and wherein the mixing chamber is configured to mix the sampled portion of the LED light; a sensor configured to sense the sampled portion of the LED light received from the mixing chamber; and a controller connected to the sensor and configured to control the LED array using the sensed, sampled portion of the LED light received from the mixing chamber. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. A system, comprising:
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an LED array configured to generate LED light, wherein the LED array includes a plurality of LEDs; an optical plane with a plurality of scattering features and with a mixing chamber; optics configured to direct the LED light to the optical plane, wherein a substantial portion of the LED light passes through the optical plane, wherein the plurality of scattering features are configured to reflect a sampled portion of the LED light into the mixing chamber and wherein the mixing chamber is configured to mix the sampled portion of the LED light; a sensor configured to sense the sampled portion of the LED light received from the mixing chamber; and a controller connected to the sensor and configured to control the LED array using the sensed, sampled portion of the LED light received from the mixing chamber, the controller including; a color module configured to receive data and convert the received data into a color space and determine an appropriate solution for producing a desired color using the LED array; an LED control module configured to use the solution from the color module to control the plurality of LEDs in the LED array to produce the desired color; and a color sensor module configured to measure chromaticity and intensity of the LED light, apply a sensor correction to measurements to create new measurements, and send the new measurements to the color module for use in determining subsequent solutions. - View Dependent Claims (17, 18, 19, 20)
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Specification