In optical coating, mobile phone shells, filters, cameras, mobile phone screens, projectors, etc. are often in contact with. The optical aerospace industry is relatively rare. Materials achieve specific functional effects by coating optical films. This is The value of the film layer.

The refractive index of the film layer is mainly to reduce or eliminate the reflected light on the optical surfaces such as lenses and prisms. In optical components, in order to reduce the light reflection loss of the components, a transparent dielectric film is coated on the surface, which is called anti-reflection or anti-reflection. The effect of the anti-reflection coating is closely related to the refractive index and thickness of the coating.

Film emissivity=[(n2-n1)/(n1+n2)]*2

        The light transmittance of optical coating is related to the refractive index of the film layer, so is it related to the thickness of the film layer? In many complex optical systems, the suppression of emitted light is very important. Relatively speaking, the more advanced the optical system, the more colors the emitted light will have. After experiments, basically the thickness of the film layer has a relatively large influence on the light transmittance. Small ones, if you work hard on the thickness of the film layer, you will find that there is an optical path difference of nc*2D between the emitted light A and the reflected light B.
        Equipment such as optical coating machine is a tool for coating optical films. During decades of development, it has achieved high-quality films with stable wavelengths at low and high temperatures. In the automatic control system, it only needs to be adjusted. parameters, the entire coating process is completely controlled by the machine, reducing uncertainty.
        It is widely used in coating various precision optical films and electrical films, such as laser mirrors, cold light films, spectroscopic films, anti-reflection films, resin lenses, various filters, sun protection films, silicon wafer coatings and various metals. Film optical coating machine.
        An optical coating machine for electronic products that is widely used in coating AR protective films, bandpass filters, dichroic mirrors, enhanced reflection films, laser mirrors, ITO films, metal films for motors, polarizers, etc. for electronic products.