Lighting or illumination is the deliberate use of light to realize a practical or aesthetic effect. Lighting includes using both artificial light sources like lamps and light fixtures, in addition to pure illumination by capturing daylight. Daylighting (utilizing home windows, skylights, or light cabinets) is usually used as the main supply of light during daytime in buildings. This can save power in place of utilizing artificial lighting, which represents a significant part of power consumption in buildings. Correct lighting can enhance job performance, improve the appearance of an space, or have positive psychological effects on occupants.
Indoor lighting is usually completed utilizing light fixtures, and is a key a part of interior design. Lighting can also be an intrinsic part of panorama projects.
With the discovery of fireplace, the earliest form of artificial lighting used to light up an space have been campfires or torches. As early as four hundred,000 BCE, fire was kindled in the caves of Peking Man. Prehistoric individuals used primitive oil lamps to light up surroundings. These lamps have been constituted of naturally occurring supplies reminiscent of rocks, shells, horns and stones, have been filled with grease, and had a fiber wick. Lamps sometimes used animal or vegetable fat as fuel. Hundreds of these lamps (hollow labored stones) have been discovered in the Lascaux caves in fashionable-day France, dating to about 15,000 years ago. Oily animals (birds and fish) have been also used as lamps after being threaded with a wick. Fireflies have been used as lighting sources. Candles and glass and pottery lamps have been also invented
. Click here to see all image