F13 by Schott

Obsolete Unknown Environmentally Dangerous

F13 by Schott is an obsolete optical glass. It transmits from 0.33 to 2.33 µm with an nd of 1.622372 and a Vd of 36.043399. It has medium thermal expansion (CTE of 8.7×10⁻⁶/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: 0.334–2.325 µm
Optical Properties
Refractive Index (nd) 1.622372
Abbe Number (Vd) 36.043399
Dispersion Formula Sellmeier
Wavelength Range 0.334 — 2.325 µm
$$n(\lambda) = \sqrt{1 + \frac{1.35317\,\lambda^2}{\lambda^2 - 0.0100821} + \frac{0.207757\,\lambda^2}{\lambda^2 - 0.0477132} + \frac{0.90216\,\lambda^2}{\lambda^2 - 109.427}}$$
Thermal Properties
TCE -30/70°C (10-6/K) 8.7
TCE 100/300°C (10-6/K) 9.7
Thermal Conductivity (W/mK) —
Heat Capacity (J/gK) —
$$\frac{dn}{dT} = \frac{n_0^2 - 1}{2\,n_0}\left[-9.71 \times 10^{-7} + 2(6.95 \times 10^{-9})\,\Delta T + 3(-1.86 \times 10^{-11})\,\Delta T^2 + \frac{1.37 \times 10^{-6} + 2(1.47 \times 10^{-9})\,\Delta T}{\lambda - 0.132}\right] \Delta T = T - T_0, \quad T_0 = 20\,°\text{C}$$
Physical Properties
Density (g/cm³) 3.62
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
F11 Hoya 1.620962 35.947308
TIM11 Ohara 1.620955 35.880852
PBM11 Ohara 1.620955 35.880852
F5 CDGM 1.624353 35.938411
H-F5 CDGM 1.62435 35.923444
PBM2 Ohara 1.620041 36.256658
S-TIM2 Ohara 1.620041 36.263378
PBM2Y Ohara 1.620041 36.269263
F2 Sumita 1.62004 36.3
E-F2 Hoya 1.62004 36.3
Similar Glasses (Schott)
Glass Manufacturer nd Vd Compare
FN11 Schott 1.620962 36.179463
F2HT Schott 1.62004 36.37
F2 Schott 1.62004 36.37
F2HTi Schott 1.62004 36.37
N-F2 Schott 1.62005 36.43
F2G12 Schott 1.62072 36.56
F1 Schott 1.625882 35.700495
F7 Schott 1.625361 35.561194
F4 Schott 1.616592 36.628072
F3 Schott 1.612931 37.038954
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