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An arc lamp or arc light is a lamp that produces light by an electric arc (also called a voltaic arc). The carbon arc light, which consists of an arc between carbon electrodes in air, invented by Humphry Davy in the first decade of the 1800s, was the first practical electric light .
1841 Arc-lighting is used as experimental public lighting in Paris. 1853 Ignacy Łukasiewicz invents the modern kerosene lamp. 1856 glassblower Heinrich Geissler confines the electric arc in a Geissler tube. 1867 Edmond Becquerel demonstrates the first fluorescent lamp. [5] 1874 Alexander Lodygin patents an incandescent light bulb.
Yablochkov’s major invention was the first model of an arc lamp that eliminated the mechanical complexity of competing lights that required a regulator to manage the voltaic arc. He went to Paris the same year where he built an industrial sample of the "electric candle" ( French patent № 112024, 1876).
[1] By 1893, New York City had 1,535 electric arc street lights. [1] In New Orleans, arc lamps were used for street lighting starting in 1881. In 1882, the New Orleans Brush Lighting Company installed one hundred 2,000-candlepower arc lamps along five miles of wharf and riverfront; by 1885, New Orleans had 655 arc lights. [1]
In his trials to power more sets of candles with different light flux and in order to obtain different voltages, Yablochkov invented the first transformers. [ 3 ] As any other carbon arc lamps, Yablochkov candles have a very bright light that can be used for lighting large lengths of streets or large interiors such as factories and train ...
U.S. patent 335,787 - Electric arc lamp - 1886 February 9 - Arc lamp's automatic fail switch when arc possesses abnormal behavior; Automatic reactivation. U.S. patent 336,961 - Regulator for dynamo electric machines - 1886 March 2 - Two main brushes connected to helices coil ends; Intermediate point branch shunt connection for third brush.
Created Date: 8/30/2012 4:52:52 PM
Different metals emit light at specific wavelengths when energized, and this characteristic determines the lamp's color output. Gas Discharge Process: The lamp's operation involves creating an electric arc across the electrodes within the arc tube. This arc generates intense heat and excites the gases and metal additives within the tube.