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A xenon arc lamp is a highly specialized type of gas discharge lamp, an electric light that produces light by passing electricity through ionized xenon gas at high pressure. It produces a bright white light to simulate sunlight , with applications in movie projectors in theaters , in searchlights , and for specialized uses in industry and research.
Xenon short-arc lamp Space Shuttle Atlantis bathed in xenon lights Xenon gas discharge tube. Xenon is used in light-emitting devices called xenon flash lamps, used in photographic flashes and stroboscopic lamps; [21] to excite the active medium in lasers which then generate coherent light; [141] and, occasionally, in bactericidal lamps. [142]
129 Xe gas is most commonly used to visualize the lung because it is a gas. However, small bubbles of xenon gas are capable of dissolving into the bloodstream at the alveoli. As these bubbles travel around the body, they can be used to gain insight into other regions of the body.
Xenon lamp may refer to: Xenon arc lamp; Xenon flash lamp; An incandescent light bulb filled with xenon gas to improve life span or efficiency;
The power level of the lamps is rated in watts/area, total electrical input power divided by the lamp's inner wall surface. Cooling of the electrodes and the lamp envelope is of high importance at high power levels. Air cooling is sufficient for lower average power levels.
A 50-hour-life projection bulb, for instance, is designed to operate only 50 °C (122 °F) below that melting point. Such a lamp may achieve up to 22 lumens per watt, compared with 17.5 for a 750-hour general service lamp. [76] Lamps of the same power rating but designed for different voltages have different luminous efficacy.
UN Regulation 37 covers motor vehicle filament lamps. These are categorized in three groups: those without general restriction that can be used in any application, those acceptable only for signalling lights (not for road illumination lamps), and those no longer allowable as light sources for new type approvals but still permitted for production as replacement parts.