Coating is a process of covering one or more layers of thin films on the surface, which involves depositing specific functional materials on the substrate surface through physical or chemical methods to significantly alter its physical, chemical, and optical properties.

Coating technology is widely used in multiple fields, including but not limited to:

In the field of optics, one or more layers of metal or dielectric films are deposited on the surface of optical components such as lenses to reduce reflection loss, improve transmittance, suppress glare, and achieve color balance. For example, modern optical lenses are usually coated with a single or multiple layers of magnesium fluoride anti reflective film, which can reduce reflection to extremely low levels and achieve a light transmittance of over 95%.

In the automotive field, coating beauty is the ultimate measure for paint protection, which can avoid oxidation and achieve multiple effects such as brightening the paint surface, acid and alkali resistance, oxidation resistance, and UV resistance. It can increase the hardness of the paint surface, avoid small scratches and aperture, and maintain it for a longer time, about a year.

In the field of mobile phones, a nano scale film is formed on the surface of the phone to protect the screen, improve screen hardness, enhance screen scratch resistance, waterproof, and oil stain resistant effects.

In the field of architecture, coated glass technology is a technique that involves coating one or more thin films on the surface of glass to alter its optical, thermal, and other properties.

Coating technology is an important surface treatment process that can significantly improve the performance and appearance of materials by forming thin films on their surfaces.