Sehschwelle
Sehschwelle refers to the minimum intensity of light that can be detected by the human eye. It is a psychophysical concept, meaning it relates subjective experience to objective physical measurement. This threshold is not a fixed value but varies depending on several factors, including the duration of the light stimulus, the size of the area being stimulated, the wavelength of the light, and the state of the observer's adaptation to light levels.
The absolute threshold of vision is typically defined under optimal conditions, such as in a dark-adapted eye
The concept of sehschwelle is crucial in fields like vision science, optometry, and lighting design. It helps