企业特殊行业经营资质信息公示
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N-SF11是符合RoHS的重火石玻璃，它在420 nm到2.3 µm波长范围是透明的。这种玻璃比N-BK7散射更高，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587.6 nm处的折射率是1.785。
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N-SF11 Specifications |
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Index of Refractiona |
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Index of Refraction at d-Line (587.6 nm)a |
1.785 |
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Sellmeier Equationa |
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Abbe Number (Vd) |
25.68 |
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Attenuation Coefficient |
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Transmission Range |
420 nm - 2.3 µm |
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Fresnel Reflectance and Transmittance (Calculated) |
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Density |
3.22 g/cm3 |
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Knoop Hardness |
615 kg/mm2 |
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Young's Modulus |
92 GPa |
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Shear Modulus (Calculated Value) |
36.6 GPa |
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Bulk Modulus (Calculated Value) |
63.1 GPa |
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Poisson's Ratio |
0.257 |
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Coefficient of Thermal Expansion |
8.5 x 10-6 /°C |
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Heat Capacity |
0.710 J/(g*K) |
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Softening Point |
592 °C |
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Change in Index of Refraction with Temperature (+20/+40°C @ 1060 nm) |
0.1 x 10-6 /°C |
