Illumination and optics
Gas-discharge lamps
Xenon is used in light-emitting devices called xenon flash lamps, which are used in photographic flashes and stroboscopic lamps;to excite the active medium in lasers which then generate coherent light; and, occasionally, in bactericidal lamps.The first solid-state laser, invented in 1960, was pumped by a xenon flash lamp, and lasers used to power inertial confinement fusion are also pumped by xenon flash lamps.
Xenon short-arc lamp
Continuous, short-arc, high pressure xenon arc lamps have a color temperature closely approximating noon sunlight and are used in solar simulators. That is, the chromaticity of these lamps closely approximates a heated black body radiator that has a temperature close to that observed from the Sun. After they were first introduced during the 1940s, these lamps began replacing the shorter-lived carbon arc lamps in movie projectors. They are employed in typical 35mm and IMAX film projection systems, automotive HID headlights and other specialized uses. These arc lamps are an excellent source of short wavelength ultraviolet radiation and they have intense emissions in the near infrared, which is used in some night vision systems. The individual cells in a plasma display use a mixture of xenon and neon that is converted into a plasma using electrodes. The interaction of this plasma with the electrodes generates ultraviolet photons, which then excite the phosphor coating on the front of the display. Xenon is used as a "starter gas" in high pressure sodium lamps. It has the lowest thermal conductivity and lowest ionization potential of all the non-radioactive noble gases. As a noble gas, it does not interfere with the chemical reactions occurring in the operating lamp. The low thermal conductivity minimizes thermal losses in the lamp while in the operating state, and the low ionization potential causes the breakdown voltage of the gas to be relatively low in the cold state, which allows the lamp to be more easily started.
Application of Xenon in lighting
Gas Mixtures produced on basis of xenon are used in gas lamps, namely in xenon lamps of a high pressure which have multipurpose applications:
Bactericidal and Stroboscopic lamps,
Lamps in projectors and film projectors,
In automobile and special lamps,
Lamps used in making electron tubes.
Xenon LAMP represents a hermetically quartz flask filled with Xenon. It is characterized by a spectrum of radiation close to solar light. Many leading manufacturers of Xenon lamps have qualitative lamps for professional and household application in the assortment.
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