Brightness Threshold

Threshold brightness is the minimum brightness that the human eye can discern. At lower brightness levels, the eye ceases to perceive the light flux.

Threshold luminance depends on many factors, including the size of the surface, the wavelength of the light, and the eye's adaptation to ambient light. For a dark-adapted eye, the threshold luminance is approximately 10−6 cd/m2 for monochromatic green light at 555 nm.

Threshold luminance measurement is used in a variety of fields, such as lighting system design, the study of visual perception, and the diagnosis of vision diseases. Understanding brightness threshold values ​​is important for creating comfortable and safe conditions for human vision.

Threshold brightness is the minimum brightness that the eye can perceive. Brightness is one of the important parameters of light that affects our vision, mood and general well-being. In this article we will look at how threshold brightness affects our life and health, as well as how we can adjust brightness in different situations.

Luminance threshold

Threshold brightness, or first threshold, is the minimum amount of light brightness that the eye should see,