Do you know the coating method of coated lens? Follow the editor of the customized CB Layer Coating lens to have a simple look!
1. Clean the surface of the lens substrate and fix it in the vacuum chamber.
2. Vacuum the vacuum chamber; make the vacuum degree not higher than 3×10-7 Pa.
3. Adding the hard film layer: immerse the lens substrate in the methyl silicone resin strengthening solution, and keep the hardening temperature in the vacuum chamber at 115-125℃. After 2 hours, take out the lens substrate and send it to the drying box for drying Curing, drying temperature is 120℃, curing time is 60 minutes.
4. Annealing treatment: annealing the hardened lens.
5. Secondary cleaning: Place the annealed lens substrate in a vacuum coating chamber, and use a Hall ion source to ion bombard the lens substrate for 3-5 minutes.

6. Preparation of the color-changing material film layer. Keep the vacuum degree of the vacuum chamber up to 2×10-7Pa, while maintaining the temperature in the vacuum chamber at 50-70°C, start the electron beam gun, adjust the position of the electron beam, and control the first The evaporation rate of the four-layer film is 2.5Å/S; adjust the beam current, evaporate a layer of color-changing material film on the surface of the hard film layer, and turn off the electron beam gun.
7. Preparation of metal oxide film layer: Keep the vacuum degree of the vacuum chamber up to 2×10-7 Pa, while keeping the temperature in the vacuum chamber at 50-70°C, start the electron beam gun, adjust the position of the electron beam, and at the same time Control the evaporation rate of the fourth film layer to 2.5Å/S; adjust the beam current, evaporate a metal oxide film layer on the surface of the anti-reflection film layer, and turn off the electron beam gun.
8. Preparation of fluoride film: keep the vacuum degree of the vacuum chamber up to 3×10-7 Pa, while keeping the temperature in the vacuum chamber at 50-70℃, start the electron beam gun, adjust the position of the electron beam, and control at the same time The evaporation rate of the fourth film layer is 7.0Å/S; the beam current is adjusted, a fluoride film layer is evaporated on the surface of the metal oxide film layer, and the electron beam gun is turned off.
9. Release the vacuum: turn off the molecular pump, open the air inlet valve, let in air, and take out the lens.
The above is the customized CB Layer Coating lens editor introduced its method.