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专利概况
专利名称 OPTICAL PRODUCT CONTAINING AN ILLUMINATING COATING IN THE VISIBLE AREA, FOR CONDITIONS OF LOW ILLUMINATION
申请号 RU2017135318 申请日
公开(公告)号 RU2684919C2 公开(公告)日
申请(专利权)人 RUPP + HUBRACH OPTIK GMBH 发明人 HOEFENER Conrad; STEIN Thorsten
专利来源 国家知识产权局 转化方式
摘要

FIELD : medicine.SUBSTANCE : ophthalmic lens contains a transparent substrate with a front main surface and a rear main surface. At least one of the main surfaces is coated with a multi-layer anti-reflective coating containing a set of at least one layer with a high refractive index (HI), having a refractive index greater than or equal to 1.55, and at least one layer with a low refractive index (LI) having a refractive index of less than 1.55. Multilayer antireflection coating has : - the average coefficient of light reflection in the visible region for photopic vision Rv, which is less than or equal to 2.5?%, preferably less than or equal to 0.9?%, at least for a dip angle less than 35? - the average coefficient of reflection of light in the visible region for scotopic vision, Rv' , which is less than or equal to 0.5?%, preferably less than or equal to 0.4?%, at least for an angle of incidence less than 35?EFFECT : technical result is the creation of an antireflection coating capable of reducing the reflection coefficient in the visible region in the case of both photopic vision and scotopic vision.16 cl, 2 dwg, 2 tbl

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