| abstract |
The invention relates to an anti-seawater lens and a preparation method thereof. The preparation method comprises the following steps: obtaining a substrate with a clean surface; performing a strengthening treatment on the surface of the substrate, immersing the substrate in a strengthening solution, and at 80-100 drying at ℃ to form a primary strengthening layer on the surface of the substrate; vacuum coating to form an anti-seawater layer; the vacuum coating conditions include: the film material is chromium oxide, titanium oxide or nickel oxide , the pressure of the vacuum chamber is 1.0×10 ‑3 Pa～1.0×10 ‑5 Pa, and the temperature is 85‑110 ℃; the secondary strengthening treatment is performed, and the coated substrate is immersed in the strengthening solution, and the temperature is 80 ‑100 ℃ drying under low temperature to form a secondary strengthening layer on the surface of the anti-seawater layer. The lens has the advantages of seawater resistance and scratch resistance, meets the needs of consumers, and has good application prospects. |