Rainbow lens and preparation method thereof

• Main Authors: YANG MINNAN, WU FUZHANG, LUO HONGMIN
• Format: Patent
• Language: Chinese; English
• Published: 30.11.2021
• Subjects: CHEMICAL SURFACE TREATMENT; CHEMISTRY; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; CONTACT LENSES; DIFFUSION TREATMENT OF METALLIC MATERIAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; METALLURGY; OPTICS; PHYSICS; SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURESAS SPECTACLES; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION

The invention relates to a rainbow lens and a preparation method thereof. The preparation method comprises the following steps: S1, a clean substrate is obtained; S2, a clean substrate is placed on a jig, the lower side of the outer surface of the clean substrate is shielded through the jig, the upper side of the outer surface of the clean substrate is exposed and serves as a film forming face, the proportion of the film forming face to the total area of the outer surface of the clean substrate is x, x is larger than or equal to 40% and smaller than or equal to 70%, and then film coating is conducted; and S3, the substrate plated with the film is placed on the jig, the upper side of the outer surface of the substrate plated with the film is shielded through the jig, the lower side of the outer surface of the substrate plated with the film is exposed and serves as the film forming face, the proportion of the film forming face to the total area of the outer surface of the clean substrate is y, y is larger than