Luminous density

The light density is abbreviated to formula signal and stands for the brightness impression, which the human eye has with a self -illuminating or illuminated area or is conveyed. This density is in unity Candela measured and specified per square meter (abbreviated with CD/m²).

It is one of the few size in the light area, which ultimately actually perceived by us. Other luminous units, on the other hand, usually indicate something that corresponds to the truth, but due to the light that is always dependent on the surrounding area and other circumstances is recorded differently by us - our eye does not only see the one lamp. From this Reason the luminance is also very strong Level of reflection dependent.

In rooms and especially at the workplace, it is important that care is made that luminosity of lamps do not fail too differently. Otherwise, there can be a negative impairment of vision, since we only perceive contrasts because this result from the luminance of objects and the luminance of the surroundings that are influenced by artificial light.