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A chandelier (/ ˌ ʃ æ n d ə ˈ l ɪər /) is an ornamental lighting device, typically with spreading branched supports for multiple lights, designed to be hung from the ceiling. [1] [2] Chandeliers are often ornate, and they were originally designed to hold candles, but now incandescent light bulbs are commonly used, [3] as well as ...
Optimal daylighting of a room using prism lighting. The prism tile canopies mounted outside over the windows send light skimming across the ceiling, so that workers deeper in the room also have natural light coming over their left shoulders. Multiple prescriptions of prism tiles are used, so some light is also sent horizontally and slightly ...
Extensive computer modeling was done of the ceiling canopy before construction to optimize the transmission of sound waves. [2] EMPAC is the first venue to use Nomex fire-retardant fabric for a ceiling canopy to reflect sound waves. [3] The exterior of the main concert hall is lined with 36,000 square feet (3,300 m 2) of Western Red Cedar.
In 1983, Casablanca introduced the world's first computerized ceiling fan control, called Inteli•Touch. The Inteli•Touch system was marketed as being easy to install, as the fan easily replaced a standard two-wire ceiling-mounted lighting fixture, and the wall control unit replaced a standard two-wire wall toggle switch.
Since they can reflect light deeper into a space, the use of incandescent and fluorescent lighting can be reduced or eliminated, depending on the space. Light shelves make it possible for daylight to penetrate the space up to 2.5 times the distance between the floor and the top of the window.
Prism lighting is the use of prisms to improve the distribution of light in a space. It is usually used to distribute daylight , and is a form of anidolic lighting . Prism lighting was popular from its introduction in the 1890s through to the 1930s, when cheap electric lights became commonplace and prism lighting became unfashionable.
However, candelabra can also be distinguished as branched candle holders that are placed on a surface such as the floor, stand, or tabletop. The chandeliers, on the other hand, are hung from the ceiling. [4] The Romans used the term to describe a form of ornamental lighting, [5] which may be a tall stand
Daylighting can cut lighting energy use in some buildings by up to 80%. [6] Toplighting (skylights) works well with sidelighting (windows) to maximize daylighting: toplighting is able to bring light into centralized areas of a building; daylight is available throughout the day from both ambient lighting from the sky and direct exposure to the sun.
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