lambert

• Unidade de luminância do sistema CGS, definida como a luminância de uma superfície perfeitamente difusora que emite ou reflete um lúmen por centímetro quadrado.

A unit of illumination in the cgs system, defined as the brightness of a perfectly diffusing surface that emits or reflects one lumen per square centimeter.

1. Unit of brightnessC2formalscientific

   A CGS unit of illumination equal to the brightness of a perfectly diffusing surface that emits or reflects one lumen per square centimeter.

   Unidade de brilho

   • The surface had a luminance of 10 lamberts.
   • The lambert is used in photometry to measure brightness.
   • One lambert equals 1 lumen per square centimeter.