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Title: Solar Device
Description: Sections of the new NIST measurement system's 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.

*EL

See also http://www.nist.gov/el/building_environment/solar-072512.cfm.
Subjects (names):
Topics/Categories:
Type: Photo/Color
Source: National Institute of Standards and Technology
Credit Line as it should
appear in print:
Credit: NIST
AV Number: 12EL005
Date Created: 2012
Date Entered: 7/25/2012

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