BSM22 by Ohara

Obsolete Unknown Environmentally Dangerous
Refractive Index vs Wavelength
Refractive Index Calculator
Valid range: 0.3–2.4 µm
dn/dλ vs Wavelength
dn/dλ Calculator
Valid range: 0.3–2.4 µm
Abbe Number Calculator
Transmission vs Wavelength
Transmission Calculator
Valid wavelength range: 0.310–1.800 µm
Optical Properties
Refractive Index (nd) 1.622296
Abbe Number (Vd) 53.186644
Dispersion Formula Sellmeier
Wavelength Range 0.3 — 2.4 µm
$$n(\lambda) = \sqrt{1 + \frac{1.35097\,\lambda^2}{\lambda^2 - 0.00745483} + \frac{0.232445\,\lambda^2}{\lambda^2 - 0.029494} + \frac{1.179\,\lambda^2}{\lambda^2 - 131.62}}$$
Thermal Properties
TCE -30/70°C (10-6/K) 6.4
TCE 100/300°C (10-6/K) 7.7
Thermal Conductivity (W/mK) —
Heat Capacity (J/gK) —
$$\frac{dn}{dT} = \frac{n_0^2 - 1}{2\,n_0}\left[5.3371 \times 10^{-6} + 2(0)\,\Delta T + 3(0)\,\Delta T^2 + \frac{0 + 2(0)\,\Delta T}{\lambda - 0}\right] \Delta T = T - T_0, \quad T_0 = 25\,°\text{C}$$
Physical Properties
Density (g/cm³) 3.68
Relative Cost —
Mechanical Properties
Young's Modulus (GPa) —
Poisson's Ratio —
Knoop Hardness (kgf/mm²) —
Chemical Resistance
Climatic Resistance —
Stain Resistance —
Acid Resistance 51
Alkali Resistance —
Phosphate Resistance 2
Similar Glasses (Other Manufacturers)
Glass Manufacturer nd Vd
H-ZBAF1 CDGM 1.6223 53.170869
SSK2 Schott 1.622301 53.154887
C23-53 Corning 1.622502 53.14721
BACED2 Hoya 1.6223 53.11226
N-SSK2 Schott 1.62229 53.27
SSK2 Sumita 1.6223 53.1
SSK50 Schott 1.617954 52.609086
SSK1 Schott 1.617201 53.912403
H-ZK20 CDGM 1.6172 53.913743
BACED1 Hoya 1.617203 53.945664
Similar Glasses (Ohara)
Glass Manufacturer nd Vd
S-BSM22 Ohara 1.622296 53.169067
BSM21 Ohara 1.617196 54.040511
S-BSM21 Ohara 1.617195 54.062144
BSM24 Ohara 1.617646 55.049782
BSM9 Ohara 1.614047 54.971106
S-BSM9 Ohara 1.614047 54.990097
BSM23 Ohara 1.614839 51.172377
S-BSM18 Ohara 1.638539 55.380028
BSM18 Ohara 1.638539 55.384768
BSM6 Ohara 1.613749 56.365919
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