Encyclopedic Dictionary of Polymers

2011 Edition
| Editors: Jan W. Gooch

Light

  • Jan W. Gooch
Reference work entry
DOI: https://doi.org/10.1007/978-1-4419-6247-8_6894

\līt\ n [ME, fr. OE lēoht; akin to OHGr lioht light, L luc-, lux light, lucēre to shine, Gk leukoswhite] (before 12c) (1) Electromagnetic radiation of which a human observer is aware through the visual sensations that arise from the stimulation of the retina of the eye. This portion of the spectrum includes wavelengths from about 380 to 770 nm. Thus, it is incorrect to speak of ultraviolet “light” because the human observer cannot see radiant energy in the ultraviolet region. (2) Adjective meaning high reflectance, transmittance, or level of illumination as contrasted to dark, or low level of intensity. (Optics. Springer, New York, 2003; Johnson SF (2001) History of light and colour measurement: A science in the shadows. Taylor & Francis, UK; Colour physics for industry, 2nd edn. McDonald, Roderick (eds), Society of Dyers and Colourists, West Yorkshire, England, 1997; Moller KD (1997) Colour physics for industry, 2nd edn. McDonald, Roderick (eds), Society of Dyers and Colourists,...

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© Springer Science+Business Media, LLC 2011

Authors and Affiliations

  • Jan W. Gooch
    • 1
  1. 1.AtlantaUSA