26/7.2018
Numerical control machine tool is an important basic equipment of machine tool manufacturing.In recent years, China's machine tool manufacturing industry is facing both the opportunity of manufacturing equipment development and the pressure of market competition.From the perspective of technology, accelerating CNC technology will be a key to the sustainable development of machine tool manufacturing.At present, the wo
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26/7.2018
1. Crystal class of alkali halides: such as lithium fluoride, sodium fluoride
2. Crystals of alkali soil-halogen compounds: calcium fluoride, barium fluoride, strontium fluoride
3. Oxide crystals: sapphire (aluminum oxide), quartz (silicon dioxide), magnesium oxide
Mineral crystals: strontium carbonate, barium titanate
Semiconductor crystals: lead sulfide, lead selenide, cadmium telluride
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The temperature coefficient of refractive index (dn/dt) of some materials is large, resulting in a larger focal distance with temperature drift.If the operating temperature range is wide, appropriate selection of infrared optical materials or necessary measures must be taken to compensate....26/7.2018
Infrared transmission material refers to the material that can pass through the infrared radiation, and the components used to make infrared instruments, such as the window of the infrared detector, the lens and prism of...26/7.2018
Zinc selenide materials are used to make all kinds of convex and convex lenses, convex and concave crescent cutting lenses, gold-plated reflectors, circularly polarized mirrors, expanding beam lenses, plane-field lenses,...26/7.2018
Zinc sulfide, white to pale white or light yellow powder, see dark light color, stable in dry air, long time in wet air or containing water, gradually oxidized to zinc sulfate, soluble in dilute inorganic acid, soluble i...26/7.2018
The main difference between the infrared optical system and the visible optical system is that only a limited number of materials can be effectively applied to the mid-wave infrared and long-wave infrared bands, and even...26/7.2018
Zinc selenide has low absorbability to infrared wavelength and can transmit visible light. It is the first choice for making infrared lens, window, output coupling mirror and expanding beam mirror. In high-power applicat...26/7.2018
The main difference between the infrared optical system and the visible optical system is that only a limited number of materials can be effectively applied to the medium wave infrared and long wave infrared bands....26/7.2018
As can be seen from the physical and chemical properties of zse materials, it is a good transmission line at 0.5 to 22 microns, covering the range of visible -- infrared band, and is an excellent material for all-weather...26/7.2018
The stress size of optical materials is one of the seven indicators to evaluate the quality of optical materials (refractive index, dispersion, index consistency, optical absorption coefficient, optical uniformity, stres...26/7.2018
Infrared (IR) radiation is characterized by a wavelength range from 0.750- 1,000 nm.Due to the limitation of the range of the detector, infrared radiation is usually divided into three smaller regions: 0.750-3 suntan m, ...