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Sylvania developed the earliest flash cubes for still cameras, later selling the technology to Eastman Kodak Company, and later a 10-flash unit called FlipFlash, as well as a line of household electric light bulbs, which continued during GTE's ownership, later sold off to the German manufacturer Osram, and is today marketed as Osram Sylvania.
The remainder of the company in Europe, Asia and Latin America, together with the Sylvania brand in those countries, was the subject of a management buyout which led to the formation of SLI Holdings International LLC. Eventually, The Australia and New Zealand subsidiaries became independent entities. SLI meant Sylvania Lighting International. [2]
Osram Sylvania Inc. is the North American operation of lighting manufacturer Osram. It was established in January 1993, with the acquisition of GTE's Sylvania lighting division by Osram GmbH. [1] In 2016, Osram spun off its general lighting business to Ledvance which received a license to sell lighting products under the Osram and Sylvania ...
Sources that depend on thermal emission from a solid filament, such as incandescent light bulbs, tend to have low overall efficacy because, as explained by Donald L. Klipstein, "An ideal thermal radiator produces visible light most efficiently at temperatures around 6300 °C (6600 K or 11,500 °F). Even at this high temperature, a lot of the ...
This property makes them among the very few simple, inexpensive sources available for generating such frequencies. For example, a standard 250-watt general-lighting mercury lamp produces significant output from 120 GHz to 6 THz. In addition, shorter wavelengths in the mid-infrared are emitted from the hot quartz arc-tube envelope.
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