Xenon lamp is a high-intensity gas discharge lamp. It is a new type of gas discharge light source with high luminous efficiency (75lm/w or more), high color rendering (color index above 80) and long life. It has high light efficiency and good color rendering. High brightness is a kind of metal halide lamp. It uses its charged cesium iodide, cesium iodide, mercury and other substances to emit its unique dense spectrum. When used, it needs corresponding ballast and trigger. (1) As an additive for NdFeB permanent magnets, adding about 2 to 3% of lanthanum to such a magnet increases the coercive force. In the past, the demand for bismuth was not large, but with the NdFeB magnet. As demand increases, it becomes a necessary addition element, the grade must be around 95 to 99.9%, and demand is rapidly increasing. (2) é• is used as a phosphor activator. Trivalent cerium is a promising active ion of a single luminescent center trichromatic luminescent material. It is mainly composed of two emission bands, one for yellow emission and the other for blue light. The emitted, erbium-doped luminescent material can be used as a trichromatic phosphor. (3) Niobium is an essential metal material for the preparation of a large magnetostrictive alloy, Terfenol alloy, which enables the precise movement of some mechanical movements. (4) Base metal can be used as a magneto-optical storage material with high recording speed and reading sensitivity. (5) For the preparation of xenon lamps, the working substance used in xenon lamps is cesium iodide. This lamp has the advantages of high brightness, good color, high color temperature, small volume, stable arc, etc. It has been used in film and printing. And other lighting sources. (6) Because the cerium element has a large neutron capture cross-sectional area, it is used in the atomic energy industry to determine the neutron energy spectrum or to make a neutron absorber. (7) Dy3Al5O12 can also be used as a magnetic working substance for magnetic refrigeration. With the development of science and technology, the application fields of é• will continue to expand and extend. It has high light efficiency, good color rendering and high brightness. The xenon lamp has various shapes such as spherical shape, tubular shape and ellipsoidal shape to meet the needs of different applications. The ballast and trigger are required for use. Daylight neon lamps are widely used in high-rise factories, plazas, construction sites, exhibition halls, halls, billboards, shopping malls, stadiums (halls), and the production of color films, broadcast color TVs, color printing and other occasions. The reflective daylight neon lamp has a reflective layer, which combines the lamp and the lamp into one, and does not need to be equipped with a lamp, and is convenient to use. The light source has large radiation intensity, small infrared radiation, concentrated light and high light utilization rate in the broad spectral region of blue-violet to orange-red light, and is an ideal light source for agricultural experiments, cultivation of crops, and acceleration of plant growth. It is suitable for various artificial climate chambers, artificial biological boxes, greenhouses, etc. as artificial radiation sources. The tungsten filament lamp is an incandescent lamp made of tungsten wire as a filament. Tungsten lamps produce a continuous spectrum for the visible spectrum of 400 to 780 nm. Used as a visible light source in a spectrophotometer. Its spectrally active region can be extended to 3 μm, so it is also used as a light source in the near-infrared region. In order to increase the life of the bulb, the length of the tungsten wire can be lengthened. Allowing heat to be distributed in a longer space, but lowering the temperature of the filament, naturally reducing the sublimation, and extending the life of the bulb. However, since the temperature is also lowered, the luminous efficiency of generating visible light is also lowered. The bulb becomes darker and requires a higher power bulb to produce the same brightness. Although it saves a little money by increasing the life of the bulb, it is worth considering whether the wasted energy is worthwhile. Therefore, long-life bulbs are often more cost-effective to use in places where it is not easy to replace the bulb. If the length of the filament is longer, the temperature is lower, and even the faint light of dark red is emitted, the heat (infrared) emitted can still be clearly felt. In addition, the flash used in early photography is designed to produce a spectrum closer to sunlight, thus shortening its filament length to operate at higher temperatures, so its working life is shortened to several hours. (The gas added in the filament makes the spectrum produced equivalent to the spectrum of the black body at about 4500 ° C - higher than the filament temperature)
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First, the introduction of Xenon lamp
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