Jiangsu Weichuang Vacuum Coating Technology Co., Ltd，With professional expertise and mature technology in the field of vacuum coating，Rapidly rising in the field of vacuum coating，It is one of the important signs of the maturity of the vacuum coating market

Vacuum coating machine mainly refers to a type of coating that needs to be carried out at a higher vacuum degree，Specifically, it includes many types，Including vacuum ion evaporation，Magnetron sputtering，MBEmolecular beam epitaxy，PLDLaser sputtering deposition and many other methods。The main idea is to divide it into two types: evaporation and sputtering。The substrate that requires coating is called a substrate，The plated material is called a target material。 The substrate and target material are both in the vacuum chamber。Evaporative coating is generally achieved by heating the target material to evaporate surface components in the form of atomic groups or ions。And settle on the surface of the substrate，Through the film-forming process(splashed-Island structure-Maze structure-layer growth)Forming a thin film。 For sputtering coatings，

Coating is mainly used to reduce reflection。In order to improve the transparency of the lens and the quality of the image，In modern lens manufacturing processes, it is necessary to coat the lens with a coating。The coating of the lens is based on the principle of optical interference，Coat the surface of the lens with a layer of material with a thickness of one-quarter wavelength(Usually fluoride)，Minimize the reflection of light of this wavelength by the lens。obviously，A layer of film only works on one color light，And multi-layer coating can work on multiple colors of light。Multi layer coating usually uses different materials to repeatedly coat the lens surface with film layers of different thicknesses。Multi layer coating can greatly improve the transmittance of lenses，for example，Unpoated

In the process of preparing flat mirrors, there is often a procedure called optical coating，Lenses are generally divided into two types，Lenses made of inorganic and organic materials，And in daily life use，Any lack of attention to detail can cause lens wear and tear，Make scratches on the surface of the mirror plate，Scratches can be roughly divided into two types，A shallow and small，The other type is deep and rough，Regardless of which type it is，Long term wearing can have a significant impact on vision。in recent years，The development of optical coating technology is becoming increasingly rapid，The following is a brief analysis of the principles of several generations of optical coating：1)The first generation of optical coating principle anti-wear film began20century70At the beginning of the year，At that time, it was believed that glass lenses