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1眼镜镜片:常用材料2眼镜片材料区别在:材料性质-理化性质-光学性质3材料性质:特征理化性质密度(比重)硬度抗冲击性能化学稳定性光学性质折射率色散力透光率光线吸收能力4材料性质:特征意义:重量/舒适度耐磨损性能/镜片寿命破损/镜片寿命溶剂/清洁剂的使用物理性质密度(比重)硬度抗冲击性能化学稳定性5材料性质:特征意义：厚度/曲率/重量色像差可见光透过率红外线、紫外线防护光学性质折射率色散力透光率光线吸收能力6眼镜片材料每种材料都有优缺点材料的选择应符合个人需求镜片的加膜等特殊处理可以改进镜片性能7理化性质玻璃树脂密度0.000.501.001.502.002.503.003.50CrownHICR39PolyHI1.56HI1.60HI>1.65密度(g/cm3)数值越小,就越轻8理化性质玻璃树脂(耐磨损程度，Moh氏硬度表)0.001.002.003.004.005.006.00CrownHICR39PolyHI1.56HI1.60HI>1.65耐磨程度(Moh氏硬度表)数值越大，硬度越高，越不易磨损9理化性质N/AN/A0.000.100.200.300.400.500.600.700.800.90CrownHICR39PolyHI1.56HI1.60HI>1.65抗冲击性能数值越大，抗冲击性能越好，越不易碎玻璃树脂抗冲击性能10理化性质化学稳定性能(热力学分类)N/AN/AN/A48.049.050.051.052.053.054.055.056.057.0CrownHICR39PolyHI1.56HI1.60HI>1.65数值越小，稳定性越好玻璃树脂11光学性质折射率1.351.401.451.501.551.601.651.701.751.80CrownHICR39PolyHI1.56HI1.60HI>1.65折射率玻璃树脂折射率越高，镜片越薄12厚度与镜片屈光力当镜片屈光力增加时:正镜片的中心厚度增加负鏡片的边缘厚度增加折射率较高的镜片会比较薄2461.8051.6011.4981681410121210148166184-14-18-10-6-2+6+2PL+10+14EdgeThickness(mm)CentreThickness(mm)-Power+Power20222426283013光学性质色散力(阿贝数)0.010.020.030.040.050.060.070.0CrownHICR39PolyHI1.56HI1.60HI>1.65色散力(Abbe数)数值越大,色散越少玻璃树脂14阿贝（Abbe）数cfdnnn1d:黄光He587.56f:蓝光H486.13c:红光H656.27cfennn1e:绿光546.07f’:蓝光Cd479.99c’:红光:643.8515光学性质透光率(%可见光透过率)8687888990919293CrownHICR39PolyHI1.56HI1.60HI>1.65透光率(%?可光透射度)玻璃树脂16光学性质抗紫外线能力050100150200250300350400CrownHICR39PolyHI1.56HI1.60HI>1.65阻断紫外线(微米)玻璃树脂17光线的透射入射光线空气/镜片界面透射吸收-在媒质种持续減少-決定于厚度-染色镜片反射玻璃每一表面4.3%特性普通折射率中折射率高折射率白片灰变茶变白片灰变茶变白片白片折射率nend1.5251.5231.5251.5231.5251.5231.6041.6001.6041.6001.6041.6001.7051.7011.8071.802色散系数vevd59595757565641424242424241423435密度克/厘米32.612.412.412.632.702.733.213.65隔断紫外线的波长(nm)330335335335345345335330镜片玻璃材料的特性（例举）镜片树脂材料的特性（例举）————热固性塑料和热塑性塑料特性热固性材料热塑性材料普通折射率中折射率高折射率高折射率白片灰变茶变白片灰变茶变白片白片折射率nend1.5021.5021.5021.5001.5001.5001.5611.5591.5591.5571.5571.5571.5991.5951.5911.586色散系数vevd58585859595937373737383836363130密度克/厘米31.321.281.281.231.201.201.361.20隔断紫外线的波长（nm）35537037037039039038038020Thankyou谢谢!