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Technology of PVD vacuum coating machine

Technology of PVD vacuum coating machine

2019-11-28

In modern science and technology, the most commonly used coating methods are mainly divided into three types: evaporation coating, sputtering coating and ion coating. The machines used in these three methods can also be called PVD vacuum coating machine. In the optical coating processing industry, we mainly adopt the way of electron beam evaporation coating. After obtaining the coating vacuum through the vacuum pump group, the electron gun sends out the high energy sublimation coating material. Through the physical vapor deposition technology, the lens surface is covered with a thin film of nanometer thickness to achieve the surface reduction of reflection and achieve the imaging clear effect.

The main technological process of optical vacuum coating technology includes film system design, coating, testing, etc. there are many conditions that affect the coating performance. Different film system design and technological conditions have different effects on the structure and characteristics of the film, among which temperature, deposition rate and vacuum are the three major factors.


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