If the purpose of vacuum coating is to modify the physical and chemical properties of the animal surface, this technology is also an important part of the vacuum surface treatment technology. Now we will give a brief introduction to several main applications. First, in optics, a piece of optical glass or quartz coated with a layer or several layers of different substances on the surface of the film, can become a high reflection or no reflection (i.e. anti-reflective film) or make any expected proportion of reflection or transmission data, can also be used as an absorption of a certain wavelength, and the transmission of another wavelength filter.
High reflective coatings are needed from the start of large-aperture astronomical telescopes and lasers to coated jasmines for large windows in new buildings. Antireflective coatings are widely used in photography and in the beginning of various lasers, as well as in coated glass for large windows of new buildings. Antireflection coatings are widely used in cameras and television cameras. Vacuum coatings play an important role in electronics. A range of inheritance circuits. Including the memory, the arithmetic unit, the notification logic element and so on all need to use the conductive film, the insulation film and the maintenance membrane. Chromium films are used as mask for making circuits.
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