Woodall, Jerry M. Department of Electrical Engineering, Yale University, New Haven, Connecticut.
Guido, Louis J. Department of Electrical Engineering, Yale University, New Haven, Connecticut.
Last reviewed:February 2019
Show previous versions
- Principles of operation
- Fabricating LEDs
- Indicators and displays
- Optical fiber transmission
- Related Primary Literature
- Additional Reading
A semiconductor device which converts electrical energy into electromagnetic radiation, sued for lighting and other purposes in a wide range of electronic applications. Light-emitting diodes, abbreviated LEDS, can emit useful radiation in the near-ultraviolet to the near-infrared range, that is, from about 400 to over 1500 nanometers. Because of their longer lifetimes, lower energy use, ruggedness, faster switching and smaller sizes compared to traditional incandescent technologies, LEDs have become the lightning source of choice for many applications (Fig. 1). See also: Electromagnetic radiation; Energy; Fiber-optic circuit; Incandescent lamp; Light; Optical communications
The content above is only an excerpt.
for your institution. Subscribe
To learn more about subscribing to AccessScience, or to request a no-risk trial of this award-winning scientific reference for your institution, fill in your information and a member of our Sales Team will contact you as soon as possible.
to your librarian. Recommend
Let your librarian know about the award-winning gateway to the most trustworthy and accurate scientific information.
AccessScience provides the most accurate and trustworthy scientific information available.
Recognized as an award-winning gateway to scientific knowledge, AccessScience is an amazing online resource that contains high-quality reference material written specifically for students. Contributors include more than 9000 highly qualified scientists and 43 Nobel Prize winners.
MORE THAN 8700 articles covering all major scientific disciplines and encompassing the McGraw-Hill Encyclopedia of Science & Technology and McGraw-Hill Yearbook of Science & Technology
115,000-PLUS definitions from the McGraw-Hill Dictionary of Scientific and Technical Terms
3000 biographies of notable scientific figures
MORE THAN 19,000 downloadable images and animations illustrating key topics
ENGAGING VIDEOS highlighting the life and work of award-winning scientists
SUGGESTIONS FOR FURTHER STUDY and additional readings to guide students to deeper understanding and research
LINKS TO CITABLE LITERATURE help students expand their knowledge using primary sources of information