Correction type lens and preparation method thereof

• Main Authors: YANG MINNAN, WU FUZHANG, LUO HONGMIN
• Format: Patent
• Language: Chinese; English
• Published: 01.07.2022
• Subjects: CONTACT LENSES; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICS; PHYSICS; SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURESAS SPECTACLES

The correction type lens comprises a substrate, the side, away from a user, of the correction type lens in the using state is defined as the outer side, and the outer surface of the substrate is provided with a light blocking layer and an outer anti-reflection film layer which are connected with each other; an inner anti-reflection film layer is arranged on the inner surface of the substrate; the light blocking layer is a mixture layer of nickel, titanium and niobium oxide, and the light blocking layer is annularly distributed on the outer edge of the substrate, so that light around the substrate is prevented from entering glasses of a user. The correction type lens can focus an observation visual angle, meanwhile, oblique light rays on the periphery of the lens and in areas outside the lens are prevented from entering human eyes, observation interference is reduced, and the correction type lens can be applied to prevention and improvement of astigmatism. 本发明涉及一种校正型镜片及眼镜，所述校正型镜片包括基片，定义所述校正型镜片在使用状态下远离使用者的一侧为外，