While lux (lx) is measured indoors, the term luminance (cd/m2) is used for underpasses, tunnels or roads. Glare refers to the total luminous intensity per 1 square metre (cd/m2).
Okay. difference between luminous intensity (lux) and luminance What is it?
- E - Luminous Violence - Lux (lx) = lm/m2
- L - Glitter = cd/m2
While the lumen value, light angle and distance from the source are important in luminance, the colour, pollution rate and texture of the surface are also important in luminance. In other words, the difference of luminance is the detail properties of the surface.
While lux is the brightness value, brightness is the brightness perceived by the human eye. Two different lighting sources that provide the same lux value of luminous intensity create different brightness on different walls. This is due to the surface properties of the walls. The perceived brightness value, i.e. luminance (cd / m2), will be lower on the darker coloured wall.
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