Blue-ray-proof lens and resin raw material thereof

Abstract

The invention relates to the field of a lens and specifically relates to a blue-ray-proof lens and a resin raw material thereof. A substrate polymer and a blue-ray-proof additive are contained in the lens; a nanometer rare earth oxide subjected to surface modification treatment is served as the blue-ray-proof additive; 3-methacryloxy trimethoxy silane and polymethyl methacrylate are contained in a modifying material used for the surface modification treatment. According to the invention, the nanometer rare earth oxide subjected to surface-cladding treatment is added into the substrate polymer, so that the lens has a better converting absorbing function for the 400-470nm high-energy blue ray; the high transparency and low haze of the lens can be guaranteed; the lens can meet the manufacturing requirements of the myopic lens, presbyopic glasses and sun glasses; the lens has wide adaptability.

Description

technical field

[0001] The present application relates to the field of lenses, in particular, to an anti-blue lens and its resin material. Background technique

[0002] Anti-blue light glasses refer to products whose lens materials have a good absorption or shielding effect on blue light with a wavelength of 400-500nm, especially blue light with a wavelength of 420-470nm, such as sunglasses, myopia glasses, reading glasses, etc. The current practice is to coat the surface of the lens with a coating with a low transmittance to light of 420-460nm wavelength, such as melatonin coating to achieve the purpose of preventing blue light, but the transmittance of visible light of products prepared by this method is generally lower If it is less than 80%, it will damage the eyesight of the wearer if it is used on myopia glasses worn by people for a long time; meanwhile, the process of this method is complicated and the cost is relatively high.

[0003] In view of this, the present ap...

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