A kind of manufacturing method of anti-blue light resin lens

Abstract

Provided is a blue-light proofing resin lens manufacturing method including the following steps, by weight percent, of preparing a silica resin lens hardening liquid containing blue light wavelength conversion particles, and dip-coating and mixing the hardening liquid containing the blue light wavelength conversion particles. According to the invention, the method can change the blue light having a wave length in the range of 400-480nm and being harmful to human eyes into near infrared light having a wave length in the range of 850-950nm, on the premise of guaranteeing the light transmittance of the lens, the original blue-light proofing capability of the lens is significantly improved, and the blue light attenuation rate reaches to more than 20%, so that the blue light transmittance is selectively attenuated while the integral high light transmittance of the lens is considered, and the window transfer transmittance adjustment of blue light frequencies is realized. The blue-light proofing resin lens manufacturing method has the characteristics of novel creativity, special technology, simple process, high practicality, and selective adjustment of blue light attenuation rate.

Description

technical field [0001] The invention relates to the technical field of manufacturing and application of anti-blue light resin lenses, in particular to a method for manufacturing an anti-blue light resin lens coated with blue light wavelength conversion particles and a hard film layer. Background technique [0002] Scientific research has proved that blue light with a wavelength of 400-480nm is potentially harmful to people's eyes due to its short wavelength and high energy. Blue light can directly penetrate the lens and reach the fundus and retina, causing eye discomfort, visual fatigue, and retinal pigmentation. The decline of epithelial cells and long-term exposure to high-intensity blue light will cause macular degeneration, resulting in blurred vision and decreased vision. Since the damage caused by blue light to people's eyes has been confirmed and confirmed by medicine, it has gradually caused medical problems. The world and the glasses manufacturing industry have atta...

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Problems solved by technology

[0002] Scientific research has proved that blue light with a wavelength of 400-480nm is potentially harmful to people's eyes due to its short wavelength and high energy. Blue light can directly penetrate the crystal and reach the retina of the fundus, causing eye discomfort, visual fatigue, and retinal pigmentation The decline of epithelial cells, long-term exposure to high-intensity blue light will cause retinal macular degeneration, resulting in blurred vision and decreased vision. In view of the damage caused by blue light to people's eyes has been medically confirmed and confirmed, it has gradually aroused medical attention. The industry and the glasses manufacturing industry have attached great importance to it, and various lens products that reduce and prevent blue light from passing through have emerged; The blue light absorber (olp melanin powder) is used to absorb and scatter blue light energy, reducing the passage of blue light. According to reports, when the amount of olp melanin powder added is 600-800ppm, the finished product can block more than 90% of blue light , but olp melanin powder is a broad-spectrum light-absorbing material. Its advantage is that the shielding coefficient for high-frequency short-wave light such as purple light and blue light is greater than the attenuation shielding coefficient for low-frequency light waves, but it has no window absorption frequency itself, so it cannot be realized. The rectangular attenuation characteristic curve of blue light, while attenuating blue light, also reduces the passage of other frequency colored light, reducing the overall light transmittance of the lens

[0003] Chinese patent 201320761157.7 anti-blue light lens adds vacuum vapor-deposited In2o3 film and Ti2o3 film layer on the substrate, and cooperates with the overlapping filtering effect of other vapor-deposited film layers, so that the blue light attenuation rate reaches more than 20%, effectively filtering blue light radiation, China Patent 201320664107.7 is a coated anti-blue light resin lens, which also has the effect of attenuating blue light by vacuum-depositing films with different refractive indices on the surface of the substrate, but the technical solutions of the above two patent documents follow the technology of superimposed attenuation route, unable to form a window regulation for the strong and targeted attenuation and shielding effect of blue light

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