Lyststyrke
Lyststyrke is a Danish term that translates to "light strength" or "luminous strength." It refers to the intensity of a light source, specifically its radiant power within the visible spectrum, weighted by the sensitivity of the human eye. This is distinct from radiant intensity, which measures the total power emitted in a particular direction, regardless of human perception. Lyststyrke takes into account how bright a light appears to an observer.
The unit of lyststyrke in the International System of Units (SI) is the candela (cd). One candela
Lyststyrke is a crucial concept in photometry, the science of measuring light. It is used in various