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Introduction to optical film preparation-film supplier

by:POLYVA     2021-11-05
The slightest difference is a thousand miles away. Optical film preparation is one of the precision manufacturing fields, and its precision often reaches the nanometer or even micro-nano level. Therefore, the complexity of its preparation is self-evident. Sometimes small mistakes can lead to a lot of losses. It is very difficult. The preparation of optical thin films is a complicated process. It is obtained by evaporating or sputtering bulk solid materials, transporting them in the gas phase, and finally condensing them on the substrate. The preparation process includes environmental vacuum conditions (vacuum degree), The influence of multi-faceted process factors such as evaporation rate and substrate temperature has greatly deviated the microstructure and chemical composition of the film from the ideal state, and ultimately led to changes in the mechanical properties, laser damage resistance threshold, and optical properties of the film. Among the many process influencing factors, the thickness uniformity of the film is often the most influential and easy to observe, which will seriously affect the physical properties of the film. According to the preparation experience, the uneven thickness of the film will cause a large deviation in the spectral performance of the film. For example, during the preparation process of the antireflection coating, the transmittance of the film will be low. Secondly, it will also affect the laser damage threshold of the film, the film stress, etc., as the head of the article said: the difference is a thousand miles away. . Therefore, thin film preparation equipment is often equipped with a highly accurate film thickness monitoring system. It is a company specializing in the production of PET film with multiple functions, such as: transparent PET film, milky white PET film, release PET film, supply of PET motor film, etc. With a wide variety of products, affordable prices, and environmental protection, we provide customers with excellent quality and service based on the service tenet of excellence in production, honesty and trustworthiness in distribution, and warm and thoughtful service. Interested parties welcome to inquire! Contact: Wen Feng 13728425799
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