photocell

• Dispositif qui convertit la lumière en signal électrique, utilisé pour détecter ou mesurer la lumière et d'autres rayonnements.

A transducer used to detect and measure light and other radiations.

1. Light detection deviceC1formalscientific

   A transducer that converts light energy into electrical energy, used to detect and measure light or other electromagnetic radiation.

   Cellule photoélectrique

   • The photocell in the street lamp automatically turns the light on at dusk.
   • Solar panels use photocells to convert sunlight into electricity.
   • The security system uses a photocell to detect movement in the dark.