“一博N-SF11重火石玻璃高精度窗口片”参数说明型号：N-SF1规格：420nm-2.3μm商标：一博包装：纸箱HeatCapacity：0.710J/(g*K)“一博N-SF11重火石玻璃高精度窗口片”详细介绍N-SF11是符合RoHS的重火石玻璃，它在420nm到2.3µm波长范围是透明的。这种玻璃比N-BK7散射  ，但其它属性差不多。它的折射率高、阿贝数低、散射功率高，非常适合在可见光范围内要求高散射的应用。它在587.6nm处的折射率是1.785。N-SF11SpecificationsIndexofRefractionatd-Line(587.6nm)a1.785AbbeNumber(Vd)25.68TransmissionRange420nm-2.3µmDensity3.22g/cm3KnoopHardness615kg/mm2Young'sModulus92GPaShearModulus(CalculatedValue)36.6GPaBulkModulus(CalculatedValue)63.1GPaPoisson'sRatio0.257CoefficientofThermalExpansion8.5x10-6/°CHeatCapacity0.710J/(g*K)SofteningPoint592°CChangeinIndexofRefractionwithTemperature(+20/+40°C@1060nm)0.1x10-6/°C