SF58 by Schott

Obsolete Unknown Environmentally Dangerous

SF58 by Schott is an obsolete optical glass. It transmits from 0.39 to 2.33 µm with an nd of 1.917613 and a Vd of 21.51112. It has medium thermal expansion (CTE of 9.0×10⁻⁶/K) and dangerous environmental properties.

Refractive Index vs Wavelength
Refractive Index Calculator
Valid range: 0.334–2.325 µm
dn/dλ vs Wavelength
dn/dλ Calculator
Valid range: 0.334–2.325 µm
Abbe Number Calculator
Transmission vs Wavelength
Transmission Calculator
Valid wavelength range: 0.390–2.325 µm
Optical Properties
Refractive Index (nd) 1.917613
Abbe Number (Vd) 21.51112
Dispersion Formula Sellmeier
Wavelength Range 0.334 — 2.325 µm
$$n(\lambda) = \sqrt{1 + \frac{1.92184\,\lambda^2}{\lambda^2 - 0.0149263} + \frac{0.552192\,\lambda^2}{\lambda^2 - 0.0614139} + \frac{1.11644\,\lambda^2}{\lambda^2 - 123.45}}$$
Thermal Properties
TCE -30/70°C (10-6/K) 9.0
TCE 100/300°C (10-6/K) 10.1
Thermal Conductivity (W/mK) —
Heat Capacity (J/gK) —
$$\frac{dn}{dT} = \frac{n_0^2 - 1}{2\,n_0}\left[4.98 \times 10^{-6} + 2(1.68 \times 10^{-8})\,\Delta T + 3(-4.44 \times 10^{-11})\,\Delta T^2 + \frac{2.37 \times 10^{-6} + 2(2.39 \times 10^{-9})\,\Delta T}{\lambda - 0.28}\right] \Delta T = T - T_0, \quad T_0 = 20\,°\text{C}$$
Physical Properties
Density (g/cm³) 5.95
Relative Cost —
Mechanical Properties
Young's Modulus (GPa) —
Poisson's Ratio —
Knoop Hardness (kgf/mm²) —
Chemical Resistance
Climatic Resistance —
Stain Resistance —
Acid Resistance —
Alkali Resistance —
Phosphate Resistance —
Notes

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Similar Glasses (Other Manufacturers)
Glass Manufacturer nd Vd Compare
PBH72 Ohara 1.915356 21.171926
PBH71 Ohara 1.922864 21.288699
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E-FDS1-W Hoya 1.92286 20.88
M-FDS1 Hoya 1.92286 20.88
E-FDS1 Hoya 1.92286 20.88
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H-ZF62 CDGM 1.92286 20.879915
Similar Glasses (Schott)
Glass Manufacturer nd Vd Compare
REALVIEW_1.9_LIGHTWEIGHT Schott 1.922002 21.44
N-SF66 Schott 1.92286 20.88
SF66 Schott 1.92286 20.88
P-SF67 Schott 1.9068 21.4
SF59 Schott 1.952497 20.363706
SFL57 Schott 1.84666 23.62
SF57HHT Schott 1.84666 23.779912
N-SF57 Schott 1.84666 23.78
N-SF57HTultra Schott 1.84666 23.78
N-SF57HT Schott 1.84666 23.78
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