What Are The Main Applications Of Optical Coating? (On)

Jan. 07, 2020

Optical coatings are ubiquitous in our lives. From precision and optical equipment, display equipment to optical coating applications in daily life, specific optical coating suppliers will analyze and introduce them in detail.

Optical coatings: There are many other applications of optical coatings. For example, glasses, digital cameras, various household appliances, or anti-counterfeiting technology on banknotes that are usually worn can be called extensions of optical coating technology applications. If there is no optical coating technology as a basis for development, modern photoelectricity, communication or laser technology will not be able to make progress, which also shows the importance of research and development of optical coating technology.

Optical coating refers to the coating or coating of one or more dielectric films or metal films or a combination of these two types of films on optical elements or independent substrates to change the transmission characteristics of light waves, including light transmission, Reflection, absorption, scattering, polarization, and phase change. Therefore, through proper design, the transmittance and reflectance of the surface of elements in different bands can be adjusted, and light with different polarization planes can have different characteristics.

 Anti-Reflection Coating (AR)

Anti-Reflection Coating (AR)

Optical films are ubiquitous in our lives, from precision and optical equipment, display equipment to optical film applications in daily life; for example, glasses, digital cameras, various household appliances, or anti-counterfeiting on banknotes that are usually worn Technology can be called an extension of the application of optical film technology. If there is no optical thin film technology as the basis for development, modern photoelectricity, communication or laser technology will not be able to make progress, which also shows the importance of the research and development of optical thin film technology. What I bring to you today is the application principle of optical coating.

First, the definition of optical film

The definition of an optical film is: a thin and uniform dielectric film layer attached to the surface of an optical device during the propagation path of light, and the characteristics of reflection, transmission (reflection) and polarization when the dielectric film layer is layered are It achieves all the special forms of light, such as the total transmission of light in one or more bands, the total reflection of light, or polarization separation.

Optical film refers to the coating or coating of one or more dielectric films or metal films or a combination of these two types of films on optical elements or independent substrates to change the transmission characteristics of light waves, including light transmission, Reflection, absorption, scattering, polarization, and phase change. Therefore, through proper design, the transmittance and reflectance of the surface of elements in different bands can be adjusted, and light with different polarization planes can have different characteristics.

Generally speaking, the production methods of high precision optical thin film are mainly divided into dry and wet production processes. The so-called dry method is that no liquid appears in the entire processing process. For example, vacuum evaporation is in a vacuum environment. The solid raw materials are heated with electrical energy. After sublimation into gas, they are attached to the surface of a solid substrate to complete coating machining. oem optical thin film manufacturer claims that the gold, silver or metal packaging film used for decoration in daily life is a product made by dry coating. However, in consideration of actual mass production, the application range of dry coating is smaller than that of wet coating. The general method of wet coating is to mix ingredients with various functions into a liquid coating, apply it to a substrate in different processing methods, and then dry and solidify the liquid coating to make a product.


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