Lighting or illumination is the deliberate use of light to realize a practical or aesthetic effect. Lighting includes the usage of each artificial light sources like lamps and light fixtures, as well as pure illumination by capturing daylight. Daylighting (utilizing home windows, skylights, or light shelves) is typically used as the main supply of light throughout daytime in buildings. This can save power in place of utilizing artificial lighting, which represents a significant part of power consumption in buildings. Proper lighting can enhance task efficiency, improve the looks of an area, or have optimistic psychological effects on occupants.
Indoor lighting is normally achieved utilizing light fixtures, and is a key a part of interior design. Lighting can also be an intrinsic part of landscape projects.
With the invention of fireplace, the earliest form of artificial lighting used to illuminate an area have been campfires or torches. As early as four hundred,000 BCE, hearth was kindled within the caves of Peking Man. Prehistoric people used primitive oil lamps to illuminate surroundings. These lamps have been made out of naturally occurring materials corresponding to rocks, shells, horns and stones, have been crammed with grease, and had a fiber wick. Lamps sometimes used animal or vegetable fat as fuel. Tons of of these lamps (hole worked stones) have been discovered within the Lascaux caves in modern-day France, courting to about 15,000 years ago. Oily animals (birds and fish) have been additionally used as lamps after being threaded with a wick. Fireflies have been used as lighting sources. Candles and glass and pottery lamps have been additionally invented
. Click here to see all photograph