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| View Original: | Solar Device.jpg (2000x918) | |||
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| Keywords: Solar Device.jpg en Sections of the new https //en wikipedia org/wiki/National_Institute_of_Standards_and_Technology NIST measurement system's https //en wikipedia org/wiki/Light-emitting_diode LED plate are shown A water-coolant system on the back a keeps the operating temperature constant Collectively the different-colored LEDs b generate light in wavelengths covering much of the solar spectrum LEDs in the second row from the bottom emit most of their radiation in the near infrared region and appear very faint to the human eye Light from the last row of LEDs is completely invisible See also http //www nist gov/el/building_environment/solar-072512 cfm www nist gov/el/building_environment/solar-072512 cfm 2012-07-23 07 11 36 https //www flickr com/photos/usnistgov/7645248232/ National Institute of Standards and Technology other versions PD-USGov National Institute of Standards and Technology | ||||
