Lighting or illumination is the deliberate use of light to attain a sensible or aesthetic effect. Lighting consists of using both artificial light sources like lamps and lighting fixtures, as well as natural illumination by capturing daylight. Daylighting (utilizing home windows, skylights, or light shelves) is sometimes used as the primary source of light during daytime in buildings. This will save power rather than utilizing artificial lighting, which represents a serious part of power consumption in buildings. Proper lighting can improve job efficiency, improve the appearance of an area, or have optimistic psychological results on occupants.
Indoor lighting is often accomplished utilizing lighting fixtures, and is a key part of interior design. Lighting may also be an intrinsic part of panorama projects.
With the invention of fireside, the earliest form of artificial lighting used to illuminate an area had been campfires or torches. As early as 400,000 BCE, hearth was kindled in the caves of Peking Man. Prehistoric individuals used primitive oil lamps to illuminate surroundings. These lamps had been created from naturally occurring materials equivalent to rocks, shells, horns and stones, had been full of grease, and had a fiber wick. Lamps usually used animal or vegetable fats as fuel. Lots of of those lamps (hole worked stones) have been discovered in the Lascaux caves in modern-day France, dating to about 15,000 years ago. Oily animals (birds and fish) had been also used as lamps after being threaded with a wick. Fireflies have been used as lighting sources. Candles and glass and pottery lamps had been also invented
. Click here to see all digital picture