Adjustable spectrum LED solar simulator system and method
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United States of America Patent
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May 27, 2014
Grant Date -
May 30, 2013
app pub date -
Nov 30, 2011
filing date -
Nov 30, 2011
priority date (Note) -
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Abstract
An adjustable spectrum LED solar simulator method and system which provides power to LEDs, senses the LED output, compares the LED output to a predetermined norm, and adjusts the LED outputs accordingly. An adjustable spectrum LED solar simulator system includes a multiplicity of LEDs of a number of different color wavelength ranges, an LED driver system for providing power to the LEDs, a sensor system for sensing the output of the LEDs and a controller responsive to the sensor system for comparing the color spectrum of the output of the LEDs to a desired solar spectrum and enables the driver system to adjust the power to the LEDs to more closely match the desired solar spectrum. The solar simulator system may include a modulator structure of hierarchical assemblies. Solar simulator calibration is also disclosed.
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