halogen lamp

halogen lamp
a gas-filled, high-intensity incandescent lamp having a tungsten filament and containing a small amount of a halogen, such as iodine, that vaporizes on heating and redeposits any evaporated tungsten particles back onto the filament: used esp. in motion-picture projectors and automobile headlights.

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or tungsten-halogen lamp

Incandescent lamp with a quartz bulb and a gas filling that includes a halogen.

It gives brilliant light from a compact unit. The halogen combines with the tungsten evaporated from the hot filament to form a compound that is attracted back to the filament, thus extending the filament's life. The evaporated tungsten is also prevented from condensing on the bulb and darkening it, an effect that reduces the light output of ordinary incandescent lamps. First used in the late 1960s in motion-picture production, halogen lamps are now also used in automobile headlights, underwater photography, and residential lighting.

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Universalium. 2010.

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  • Halogen lamp —   A type of incandescent lamp that lasts much longer and is more efficient than the common incandescent lamp. The lamp uses a halogen gas, usually iodine or bromine, that causes the evaporating tungsten to be redeposited on the filament, thus… …   Energy terms

  • halogen lamp — hal′ogen lamp n. mot elm ene a gas filled, high intensity incandescent lamp containing a small amount of a halogen, as iodine …   From formal English to slang

  • halogen lamp — noun An incandescent lamp containing a small quantity of halogen (usually bromine) to reduce deposition on the glass …   Wiktionary

  • halogen lamp — incandescent lamp which contains a small amount of halogen …   English contemporary dictionary

  • halogen lamp — a gas filled, high intensity incandescent lamp having a tungsten filament and containing a small amount of a halogen, such as iodine, that vaporizes on heating and redeposits any evaporated tungsten particles back onto the filament: used esp. in… …   Useful english dictionary

  • Halogen lamp — Галогенная лампа …   Краткий толковый словарь по полиграфии

  • tungsten-halogen lamp — noun A compact high intensity light source (a development of the basic tungsten lamp), in which the casing is filled with halogen, used for car lamps, cine projectors, etc • • • Main Entry: ↑tungsten …   Useful english dictionary

  • quartz-halogen lamp — quartz lamp, quartz halogen lamp or quartz iodine lamp noun A compact source of light used for high intensity floodlighting of large areas, in car (fog )lamps, cine projectors, etc • • • Main Entry: ↑quartz …   Useful english dictionary

  • Tungsten Halogen Lamp —   A type of incandescent lamp that contains a halogen gas in the bulb, which reduces the filament evaporation rate increasing the lamp life. The high operating temperature and need for special fixtures limits their use to commercial applications… …   Energy terms

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