Optical thin films deposited by optical vacuum coating machines can be used to obtain a variety of optical characteristics:
One,It can reduce surface reflection to increase the transmittance and contrast of the optical system, such as the anti-reflection spherical mirror in the optical lens.
Two,Can increase surface reflection to reduce light loss, such as the reflectors in laser gyro navigation systems used to guide aircraft and missiles.
Three,It can achieve high transmission and low reflection in one band, and low transmission and high reflection in the adjacent band, so as to achieve the purpose of color separation, such as the dichroic mirror in liquid crystal display.
Four,They can achieve high transmittance in a narrow wavelength band and low transmittance in other wavelengths, such as narrow-bandpass filters used in autonomous vehicle technology or radar on drones, and narrow-bandpass filters required for structured light facial recognition. The applications of optical thin films are countless and have penetrated into every aspect of life.
