Search Results for: Kephir concentrated
that for an ideal optical system, the luminance at the output is the same as the input luminance. for real, passive optical systems, the output luminance is at most equal to the input. as an example, if one uses a lens to form an image that is smaller than the source object, the luminous power is concentrated
that for an ideal optical system, the luminance at the output is the same as the input luminance. for real, passive optical systems, the output luminance is at most equal to the input. as an example, if one uses a lens to form an image that is smaller than the source object, the luminous power is concentrated...
https://en.wikipedia.org/wiki/Luminance