Valonlaatu
Valonlaatu is a Finnish term that translates to "quality of light." It describes the characteristics of light in a given environment, including color, brightness, diffusion, uniformity, and color rendering. The term is used across lighting design, photography, film, and studies of human perception.
Derived from valon (of light) and laatu (quality), valonlaatu in Finnish technical discourse discusses how light
Measured in practice through color rendering metrics such as CRI and TM-30, correlated color temperature (CCT),
In architecture and interior design, valonlaatu guides luminaire selection to achieve a desired atmosphere; in photography
See also: Lighting design; Color temperature; Color rendering.