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Light Sources

  • Josef Flammer
  • Maneli Mozaffarieh
  • Hans Bebie
Chapter

Abstract

In one of his Christmas lectures, Michael Faraday spoke about a classic source of light: a hot material (here, the flame of a candle) emitting light, known as thermal light. We find this process in a light bulb as well as in the radiation produced by the sun and stars or in the Olympic torch. In nature, other sources of light are rather rare, such as lightning, auroras, or the bioluminescence of a firefly. On the other hand, technology has made different (non-thermal) light sources available, e.g., fluorescent lamps, lasers, and light emitting diodes.

Keywords

Laser Diode Light Emit Diode Semiconductor Laser Lasing Process Light Bulb 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Copyright information

© Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  • Josef Flammer
    • 1
  • Maneli Mozaffarieh
    • 1
  • Hans Bebie
    • 2
  1. 1.Department of OphthalmologyUniversity of BaselBaselSwitzerland
  2. 2.Institute for Theoretical PhysicsUniversity of BernBernSwitzerland

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