Encyclopedic Dictionary of Polymers

2011 Edition
| Editors: Jan W. Gooch


  • Jan W. Gooch
Reference work entry
DOI: https://doi.org/10.1007/978-1-4419-6247-8_9718

\rā-dē-әn(t)s\ n (1601) Quotient of the radiant intensity in a given direction of an infinitesimal surface element containing the point under consideration divided by the area of the orthogonal projection of this surface element on a plane perpendicular to the given direction (Holst GC (2003) Electro-optical imaging system performance. J. D. C. Publishing, New York;

Klocek P (ed) (1991) Handbook of infrared optical materials. Marcel Dekker, New York).

Copyright information

© Springer Science+Business Media, LLC 2011

Authors and Affiliations

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