本发明涉及一种具有防护蓝紫光性能的1.67聚氨酯镜片及其制造方法,其特征在于：镜片树脂配方采用了4,8－二巯基甲基－1,11二巯基－3,6,9－三硫杂十一烷：5％-50％；5,7－二巯基甲基－1,11－二巯基－3,6,9－三硫杂十一烷：5％-50％；二(2,2巯基)乙基四硫：5％-50％；间苯二甲基异氰酸酯：5％-50％；环己烷二亚甲基二异氰酸酯：5％-50％五种树脂复配,催化剂采用有机锡催化剂,防护蓝紫光吸收剂采用苯并三唑、二苯甲酮,有机染料采用红色、绿色和蓝色染料,该染料用于基片的调色。通过本树脂聚合后得到树脂镜片的基片折射率为1.67,将此基片加硬镀膜后获得的镜片可见光透视比≥93％；蓝紫光透视比分别为波段280nm～380nm,透射比≤0.5％；380nm～420nm≤20％。

The invention relates to a polyurethane lens with a refractive index of 1.67 and having blue-violet light protection performance and a manufacturing method thereof. The characteristics lie in that a resin formulation of the lens adopts a compound of five types of resin which are 5%-50% of 4, 8-dimercaptomethyl-1, 11-dimercapto-3, 6, 9-trithiaundecane, 5%-50% of 5, 7-dimercaptomethyl-1, 11-dimercapto-3, 6, 9-trithiaundecane; 5%-50% of bis-(2, 2- sulphydryl) ethyl tetrasulfide, 5%-50% of m-Xylylene diisocyanate, 5%-50% of cyclohexane dimethylene diisocyanate, a catalyst adopts an organic tin catalyst, a protective blue-violet light absorbent adopts benzotriazole and benzophenone, organic dyes adopt red, green and blue dyes, and the dyes are used for perform color modulation on a substrate. The substrate refractive index of a resin lens acquired after resin polymerization is 1.67, and the visible light transmittance is greater than or equal to 93% after a hard coating is added to the substrate; the blue-violet light transmittance is less than or equal to 0.5% in a wave band of 280nm-380nm; and the blue-violet light transmittance is less than or equal to 20% in a wave band of 380nm-420nm.