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Natural Levels of Illumination and Irradiance

  • Lucien M. Biberman
Part of the Optical Physics and Engineering book series (OPEG, volume 1)

Abstract

In nature, the range of illumination extends from 10,000 foot-candles, occurring at high noon in clear sunlight (the sun produces an illuminance of approximately 12,500 foot-candles above the earth’s atmosphere), down to 10−2 foot-candles at full moon, 10−4 for clear moonless night sky, and finally 10−5 for overcast night sky.

Keywords

Spectral Distribution Lunar Surface Full Moon Natural Level Naval Research Laboratory 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

General References

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Special References

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Copyright information

© Plenum Press, New York 1971

Authors and Affiliations

  • Lucien M. Biberman
    • 1
    • 2
  1. 1.IDAArlingtonUSA
  2. 2.University of Rhode IslandKingstonUSA

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