SSI-LXR4815YD12VWR
-
30791985-SSI-LXR4815YD12VWR
LED Panel Mount Indicators
the angle at which a display can be viewed with acceptable visual performance.
In photometry, luminous intensity is a measure of the wavelength-weighted power emitted by a light source in a particular direction per unit solid angle, based on the luminosity function, a standardized model of the sensitivity of the human eye.
affect how much visible light reaches people's eyes, how well people see other colors and how well they see contrasts.