Light-emitting diode (LED),cutaway computer artwork. LEDs contain a semiconductor (red square,centre left) that emits light when a current passes through it. The semiconductor is usually aluminium-gallium-arsenide. LEDs are used extensively in electrical devices and circuit boards to indicate the presence of a voltage | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Power And Syred |
Taille de l’image : | 3000 px × 3500 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |