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An incandescent light bulb, incandescent lamp or incandescent light globe is an electric light with a filament that is heated until it glows. The filament is enclosed in a glass bulb that is either evacuated or filled with inert gas to protect the filament from oxidation .
Sir Joseph Wilson Swan FRS (31 October 1828 – 27 May 1914) was an English physicist, chemist, and inventor.He is known as an independent early developer of a successful incandescent light bulb, and is the person responsible for developing and supplying the first incandescent lights used to illuminate homes and public buildings, including the Savoy Theatre, London, in 1881.
To avoid a possible court battle with yet another competitor, Joseph Swan, who held an 1880 British patent on a similar incandescent electric lamp, [68] he and Swan formed a joint company called Ediswan to manufacture and market the invention in Britain. The incandescent light bulb patented by Edison also began to gain widespread popularity in ...
The invention builds on acetylene lamps from the 1890s. 1901 Peter Cooper Hewitt creates the first commercial mercury-vapor lamp. 1904 Alexander Just and Franjo Hanaman invent the tungsten filament for incandescent lightbulbs. 1910 Georges Claude demonstrates neon lighting at the Paris Motor Show. 1912 Charles P. Steinmetz invents the metal ...
In the 1960s, US inventor Robert (Bob) Kyp patented a similar in appearance but flickering "electric flame" light bulb under the name Balafire [6] as well as radiometers. His flicker bulb was used in a 7-Up commercial, [ 7 ] and the company he ran since 1964, Kyp-Go, is currently the only US manufacturer of carbon-filament bulbs.
Lewis Howard Latimer (September 4, 1848 – December 11, 1928) was an American inventor and patent draftsman. His inventions included an evaporative air conditioner, an improved process for manufacturing carbon filaments for light bulbs, and an improved toilet system for railroad cars.