نتایج جستجو برای: electric lamp
تعداد نتایج: 153375 فیلتر نتایج به سال:
The prevalence of electric discharge illumination has led us to consider ways to use discharge lamps for communication. This paper describes an optical transceiver system which transmits by modulating the lamp arc. The prototype power electronic lamp ballast uses a pulse frequency modulation scheme which ensures no perceptible flicker.
Self-powered system that is interface-free is greatly desired for area-scalable application. Here we report a self-powered electroluminescent system that consists of a triboelectric generator (TEG) and a thin-film electroluminescent (TFEL) lamp. The TEG provides high-voltage alternating electric output, which fits in well with the needs of the TFEL lamp. Induced charges pumped onto the lamp by ...
all the distributing electric light stations, it has not yet been found practicable to make a lamp which will stand the strain. Hence we have to be content with somewhat indifferent carbon filament lamps. Before the war many operation lamps such as Jessop's were fitted with a Nernst filament; as this is no longer obtainable the lamp is rendered useless. A very excellent substitute for the Nerns...
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