A GLOWING FUTURE FOR LEDS?

The development of brighter, cheaper light-emitting diodes (LEDs) has already led to their use in traffic signals, rear and brake lights for cars, and emergency exit signs and aisle lighting in aircraft. Several research programmes have begun to develop LEDs as an important source of general lighting and as a replacement for incandescent and fluorescent lighting. LEDs already have several advantages over other technologies as light sources as well as indicators; these benefits include durability, low energy consumption, lower costs, rapid switching speed, efficiency, compactness, and light weight. LEDs are best at producing red and orange lights, good for yellow and green lights, not so good for blue lights. Tests of traffic signals using LEDs are already being conducted in different countries, especially in the USA but also in the UK, Australia, Holland, and Sweden. The USA is also exploring potential applications to railway signalling and road information displays. (A)

  • Availability:
  • Corporate Authors:

    ABC BUSINESS PRESS

    QUADRANT HOUSE
    SUTTON, SURREY  United Kingdom  SM2 5AS
  • Authors:
    • SACKS, T
  • Publication Date: 1999-1-19

Language

  • English

Media Info

  • Pagination: p. 26-8
  • Serial:
    • ELECTRICAL REVIEW
    • Volume: 232
    • Issue Number: 1-2
    • Publisher: Reed Business Information, Limited
    • ISSN: 0013-4384

Subject/Index Terms

Filing Info

  • Accession Number: 00765605
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Files: ITRD
  • Created Date: Jul 1 1999 12:00AM