The leds (electroluminescent diodes) appeared in the Sixties. Since, they did not cease evolving.
www.led-fr.net  proposes to you to discover this promising technology. That is its history, its operation, its future or its applications.
In parallel, also consult the history of lighting and the comparative one of the sources of light currently used in the world.
I wish you a pleasant visit

Leds

    The electroluminescent diodes (leds or dels), even if this site their are devoted, will not revolutionize our existence. At least, not in the short or medium term.
However, their singular characteristics confer even new interesting applications to them.
This heading ("led") aims to show you which they are really and for what they can be used.
Perhaps were you never put the question "what this small luminous object which is present on all my apparatuses?" or, perhaps did you believe in a "small coloured bulb"?
Discover the interior of the led, their operation like their characteristics. Then go account of the establishment of the led in your everyday life, including that of the white led. Lastly, learn the probable future from the leds.

 

 

News of the site

06/11/2004: Setting on line of the forum.
26/10/2004: Setting on line of pages " FAQ ", " Lighting with led? "
22/10/2004: Addition of the page " strange Applications of the leds "
20/10/2004: Addition of images drawn from pearl.fr (with their authorization)
15/10/2004: Addition of the page " Lighting and speleology "
10/10/2004: Addition of the page " Assembly of a mini lamp with leds "
   
 
NB:
Words followed of (*) return in the page "definitions": www.led-fr.net/definitions_physiques.htm
Words followed of (°) return in the page "concepts": www.led-fr.net/notions_de_physiques.htm