quartz-iodine lamp
noun Date: circa 1964 a lightbulb consisting of a quartz bulb and a tungsten filament with the bulb containing iodine which reacts with the vaporized tungsten to prevent excessive blackening of the bulb

New Collegiate Dictionary. 2001.

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  • quartz-iodine lamp — ¦ ̷ ̷ ¦ ̷ ̷  ̷ ̷  ̷ ̷ noun : an incandescent lamp that has a quartz bulb and a tungsten filament and that contains iodine which reacts with the vaporized tungsten to prevent excessive blackening of the bulb * * * quartz lamp, quartz halogen lamp… …   Useful english dictionary

  • quartz-iodine lamp — /kwɔts ˈaɪədaɪn ˌlæmp/ (say kwawts uyuhduyn .lamp) noun a type of quartz halogen lamp in which the enclosed atmosphere is iodine. Also, QI lamp …   Australian English dictionary

  • quartz-iodine lamp — A compact high intensity light source, consisting of a bulb with a tungsten filament, filled with an inert gas containing iodine (sometimes bromine) vapor. The bulb is of quartz, glass being unable to withstand the high operating temperature… …   Dictionary of automotive terms

  • Quartz-iodine lamp — Иодно кварцевая лампа (накаливания); Иодидо кварцевая лампа (накаливания) …   Краткий толковый словарь по полиграфии

  • 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

  • quartz halogen lamp — noun an incandescent light bulb in which the envelope is made of quartz instead of glass, and the filament is surrounded by an atmosphere of a halogen …   Wiktionary

  • quartz lamp — noun a mercury vapor lamp that is enclosed in a quartz container instead of a glass container • Hypernyms: ↑mercury vapor lamp * * * noun : a mercury vapor lamp in a tube of quartz glass that transmits most of the ultraviolet radiation * * * a… …   Useful english dictionary

  • quartz-i|o|dine lamp — «KWAWRTS Y uh dyn, dihn», an incandescent lamp made of quartz and containing iodine vapor and a tungsten filament, used especially in automobile headlights …   Useful english dictionary

  • Halogen lamp — A halogen lamp is an incandescent lamp in which a tungsten filament is sealed into a compact transparent envelope filled with an inert gas, plus a small amount of halogen such as iodine or bromine. The halogen cycle increases the lifetime of the… …   Wikipedia

  • Hydrargyrum medium-arc iodide lamp — Hydrargyrum medium arc iodide, or HMI, is a mercury halide gas discharge medium arc length lamp with a multi line spectra emission. The name implies that hydrargyrum, an archaic term for Mercury (Hg), is held as a vapour mixed with other rare… …   Wikipedia

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