Coating of lens of vacuum coating machine
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Coating of lens of vacuum coating machine
The purpose of vacuum coating machine coating is to reduce reflection, mainly to reduce reflection and improve the light transmittance of the lens and the quality of the image. The coating of the lens is to coat a layer of material with a thickness of a quarter wavelength on the surface according to the optical interference principle, so that the reflection of the color light of this wavelength by the lens is minimized. Obviously, multi-layer coating can greatly improve the light transmittance of the lens. For example, the reflectivity of each surface of an uncoated lens is 5%, which is reduced to 2% after single-layer coating, and can be reduced to 0.2% with multi-layer coating. The diffuse reflection between the lenses of the lens is reduced, thereby improving the contrast and sharpness of the image.
High current arc discharge technology of vacuum coating machine
The specific principle of PVD coating (ion coating) technology of vacuum coating machine is that under vacuum conditions, arc discharge technology of low voltage and high current is used, and gas discharge is used to evaporate the target material and ionize the evaporated material and gas. The acceleration of the electric field causes the vaporized substances and their reaction products to be deposited on the workpiece. .
Vacuum Coating MachineVacuum Coating MachinePVD Coating
Vacuum coating machine PVD coating and PVD coating machine PVD (physical vapor deposition) coating technology is mainly divided into three categories, vacuum evaporation coating, vacuum sputtering and vacuum ion coating. Corresponding to the three categories of PVD technology, the corresponding vacuum coating equipment also includes vacuum evaporation coating machine, vacuum sputtering coating machine and vacuum ion coating machine. In the past ten years, the development of vacuum ion coating technology is the fastest, and it has become one of the most advanced surface treatment methods today. What we usually call PVD coating refers to vacuum ion coating; what we usually call PVD coating machine refers to vacuum ion coating machine.
