Definition, Meaning & Synonyms
illuminance
noun
/ɪˈluː.mɪ.nəns/
Definition
The amount of light that falls on a surface per unit area.
Examples
- The illuminance in the room was adjusted by changing the light fixtures.
- High illuminance levels are essential for tasks requiring attention to detail.
- The photographer measured the illuminance to ensure proper exposure.
Meaning
Illuminance measures how much luminous flux is spread over a certain area. It is a crucial concept in lighting design and photography, helping to determine how brightly a light source illuminates a particular surface.
Synonyms
- light level
- brightness
- luminous intensity
