BAM8 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: 0.330–0.700 µm
Optical Properties
Refractive Index (nd) 1.62374
Abbe Number (Vd) 47.09722
Dispersion Formula Schott
Wavelength Range 0.3 — 2.4 µm
$$n(\lambda) = \sqrt{2.58305 - 0.00980448\,\lambda^2 + 0.0179998\,\lambda^{-2} + 0.000625608\,\lambda^{-4} - 3.03828 \times 10^{-5}\,\lambda^{-6} + 3.06398 \times 10^{-6}\,\lambda^{-8}}$$
Thermal Properties
TCE -30/70°C (10-6/K) 6.3
TCE 100/300°C (10-6/K) 7.4
Thermal Conductivity (W/mK) —
Heat Capacity (J/gK) —
$$\frac{dn}{dT} = \frac{n_0^2 - 1}{2\,n_0}\left[7.771 \times 10^{-6} + 2(0)\,\Delta T + 3(0)\,\Delta T^2 + \frac{0 + 2(0)\,\Delta T}{\lambda - 0}\right] \Delta T = T - T_0, \quad T_0 = 25\,°\text{C}$$
Physical Properties
Density (g/cm³) 3.62
Relative Cost —
Mechanical Properties
Young's Modulus (GPa) —
Poisson's Ratio —
Knoop Hardness (kgf/mm²) —
Chemical Resistance
Climatic Resistance —
Stain Resistance —
Acid Resistance 52
Alkali Resistance —
Phosphate Resistance 2
Similar Glasses (Other Manufacturers)
Glass Manufacturer nd Vd
BAF8 Sumita 1.62374 47.1
K-BaF8 Sumita 1.62374 47.1
BAF8 Hoya 1.623739 47.054197
E-BAF8 Hoya 1.62374 47.05
BAF8 Schott 1.62374 47.000909
C24-47 Corning 1.624 46.940278
K-LCV161(M) Sumita 1.61477 45.6
K-LCV161 Sumita 1.6182 45.3
N-BAF52 Schott 1.60863 46.6
BAF52 Schott 1.608589 46.44241
Similar Glasses (Ohara)
Glass Manufacturer nd Vd
BAM9 Ohara 1.643279 47.850606
S-BSM28 Ohara 1.617722 49.815052
BSM28 Ohara 1.617722 49.83232
BAM5 Ohara 1.607289 49.188575
BAM12 Ohara 1.6393 44.878032
S-BAM12 Ohara 1.6393 44.872804
S-NBM51 Ohara 1.613397 44.267706
BPM51 Ohara 1.613397 44.266767
BPM4 Ohara 1.6134 43.841533
BAM4 Ohara 1.60562 43.723021
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