The combined facts of the energy crisis, its effect on lighting, and recent articles on luminaire dirt depreciation form a timely combination of events. The basis for this article is that these events should be brought to the attention of lighting equipment users and specifiers to improve present and planned installations. It is imperative that the specifier and/or user not only know of the factors that cause luminaire depreciation, but also understand the elements of the light producing portion of the luminaire and how these components affect the luminaire efficiency. External forces that reduce the efficiency of the luminaire include the amount of particulate matter to which it is subjected and conditions acting upon the luminaire that control the particulate matter entering it. The most important of these are wind and rainfall.

  • Corporate Authors:

    Illuminating Engineering Society

    120 Wall Street, 17th Floor
    New York, NY  United States  10005-4001
  • Authors:
    • Scholz, C F
  • Publication Date: 1975-4

Media Info

  • Pagination: p. 177-182
  • Serial:
    • Volume: 4
    • Issue Number: 3

Subject/Index Terms

Filing Info

  • Accession Number: 00096229
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jul 15 1975 12:00AM