light filter

• Dispositif ou matériau qui laisse passer sélectivement la lumière de différentes longueurs d'onde, utilisé en photographie, en optique ou dans les instruments scientifiques pour modifier ou contrôler les propriétés de la lumière qui le traverse.

A device or material that selectively transmits light of different wavelengths, used in photography, optics, or scientific instruments to modify or control the properties of light passing through it.

1. Optical deviceB2formal

   A material or device that selectively transmits light of different wavelengths, often used in photography, science, and lighting.

   filtre optique

   • The photographer used a light filter to reduce glare.
   • A UV light filter protects the camera lens.
   • Scientists use light filters to study specific wavelengths.

2. Digital effectB1informal

   A software feature that adjusts the brightness, color, or contrast of an image or screen display.

   filtre de lumière

   • I applied a light filter to make the photo look warmer.
   • The app has a night mode light filter to reduce eye strain.
   • You can adjust the light filter settings on your monitor.