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vacuum coating equipment, what are the differences between vacuum coating and optical coating?

vacuum coating equipment, what are the differences between vacuum coating and optical coating?

2022-03-19

In vacuum coating equipment, what are the differences between vacuum coating and optical coating?






Vacuum coating is an important aspect of vacuum applications. It is based on vacuum technology, adopts physical or chemical methods, absorbs a series of new technologies such as electron beam, molecular beam, ion beam, plasma beam, radio frequency and magnetic control, and provides a new process for thin film preparation for scientific research and actual production. . Simply put, it is the solidification and deposition method of evaporating or sputtering metals, alloys or compounds in a vacuum so that they are coated on objects (called substrates, substrates or substrates), called vacuum coating.


Vacuum coating is a new coating technology developed relative to the above wet coating method, usually called dry coating technology.


Optical coating refers to the process of coating a layer (or multiple layers) of metal (or dielectric) films on the surface of optical parts. The purpose of the surface coating of optical parts is to reduce or increase the requirements for light reflection, beam splitting, color separation, filtering, polarization, etc. Commonly used coating methods are vacuum coating (a physical coating) and chemical coating.


Optical coating is a physical or chemical method that coats a material surface with a transparent electrolyte film, or coats a metal film with the purpose of changing the reflection and transmission characteristics of the material surface.


As can be seen from the above, the difference between vacuum coating and optical coating has the following two points:


1. Vacuum coating is based on vacuum technology, using physical or chemical methods to absorb a series of new technologies such as electron beam, molecular beam, ion beam, plasma beam, radio frequency, and magnetron. Optical coating is a physical or chemical method to coat a layer of transparent electrolyte film, or a layer of metal film on the surface of a material, in order to change the reflection and transmission characteristics of the material surface.


2. Vacuum coating is a vacuum application field, and optical coating refers to the process of coating a layer (or multiple layers) of metal (or dielectric) films on the surface of optical parts.


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