Production process of optical coating manufacturers
In order to achieve high transparency and isolate harmful light, optical coating refers to light that does not meet our optical specifications. Therefore, a thin film is deposited on the surface of the substrate, and the thickness of the single-layer film is generally tens to thousands of angstroms.
Optical thin films can be chemically coated or physically coated, with physical vapor deposition being the main method nowadays. The method involves converting the thin film material from a solid state to a gaseous or ionic state, traveling through space from the vapor source, and reaching the glass surface. After the material reaches the glass surface, it slowly deposits to form a thin film. The advantage of physical coating is that its strength and uniformity are generally higher than chemical coating, and it can be used for multiple film layers.
In order to achieve high purity of the film, as the coating process is completed in a high vacuum environment.
Optical thin films can be chemically coated or physically coated, with physical vapor deposition being the main method nowadays. The method involves converting the thin film material from a solid state to a gaseous or ionic state, traveling through space from the vapor source, and reaching the glass surface. After the material reaches the glass surface, it slowly deposits to form a thin film. The advantage of physical coating is that its strength and uniformity are generally higher than chemical coating, and it can be used for multiple film layers.
In order to achieve high purity of the film, as the coating process is completed in a high vacuum environment.