LIGHTING


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LIGHTING
1010600LIGHTINGMost of us would agree that the electric light ranks as one of the most important technological developments that man has ever achieved. It was in the early 1800s that electric lighting began to appear in cities around the world. These early lamps used an electric arc to produce a brilliant light that was suitable for outdoor applications. However, because these lamps could only operate at high power levels, they were not suitable for indoor use. Early movie projectors relied on arc lamps to produce the high intensity light required to project motion pictures. During World War II, a…
Citation
Brian S. Elliott: Electromechanical Devices & Components Illustrated Sourcebook. LIGHTING, Chapter (McGraw-Hill Professional, 2007), AccessEngineering Export