Getting the best possible light
 
Artificial light makes us independent of natural daylight, whatever the season and whatever the location. It enables cultural and technical advances to be made and prolongs production times. The table below shows the quantitative increase in the use of light at various workplaces over the last century.

The purpose of using light, however, is not just to increase illuminance indiscriminately but to compose in light, to create bright and dark zones and to provide the light that meets the needs of the situation.   Modern lighting design also aims to provide the necessary lighting moods for domestic, commercial, professional and public premises so that these moods can be called up as the need arises.