Nota: A tradução desta entrada está atualmente em revisão de qualidade, portanto parte do conteúdo é exibida temporariamente apenas em inglês.
Este verbete ainda não foi traduzido para o seu idioma, portanto o original é exibido abaixo.
illuminance
This term is a technical specification used primarily in physics, lighting engineering, and photometry. It describes the intensity of light hitting a surface, which is distinct from luminance, which refers to the light emitted or reflected from a surface in a specific direction.
As a specialized scientific term, it is almost exclusively used in formal, technical, or academic contexts. It is rarely encountered in casual conversation, where a speaker would more likely use general terms like brightness or light level.
Meanings
Examples
The lux is the SI unit used to measure illuminance.
We need to increase the illuminance on the drafting table to reduce eye strain.
The sensor measures the illuminance of the surface to adjust the exposure automatically.
Is the illuminance in this room sufficient for detailed surgical work?
The illuminance decreases rapidly as you move away from the light source.
I wonder if the illuminance here is high enough to trigger the solar panel.
The architect specified a minimum illuminance level for the emergency exit paths.
Calculate the average illuminance across the entire workspace.