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Radiometric, Photometric and Photonmetric Quantities and Their Units

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LED Lighting for Urban Agriculture

Abstract

The article provides a simple explanation to facilitate systematic understanding of quantities, especially relating to “light intensity”, and the SI units necessary to describe the specifications of light output of artificial light sources and of light environments for plant cultivation. Important quantities similarly situated in radiometry, photometry and photonmetry, respectively, are explained, contradistinguished from one another.

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References

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Author information

Authors and Affiliations

  1. Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, 113-8657, Japan

    Kazuhiro Fujiwara

Authors
  1. Kazuhiro Fujiwara
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Correspondence to Kazuhiro Fujiwara .

Editor information

Editors and Affiliations

  1. Japan Plant Factory Association (NPO), Kashiwa, Chiba, Japan

    Toyoki Kozai

  2. Agricultural and Life Sciences, The University of Tokyo, Bunkyo-ku, Tokyo, Japan

    Kazuhiro Fujiwara

  3. Department of Horticulture, Michigan State University, East Lansing, Michigan, USA

    Erik S. Runkle

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© 2016 Springer Science+Business Media Singapore

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Fujiwara, K. (2016). Radiometric, Photometric and Photonmetric Quantities and Their Units. In: Kozai, T., Fujiwara, K., Runkle, E. (eds) LED Lighting for Urban Agriculture. Springer, Singapore. https://doi.org/10.1007/978-981-10-1848-0_26

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