BSM6 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: 0.300–0.700 µm
Optical Properties
Refractive Index (nd) 1.613749
Abbe Number (Vd) 56.365919
Dispersion Formula Schott
Wavelength Range 0.3 — 2.4 µm
$$n(\lambda) = \sqrt{2.56013 - 0.0093712\,\lambda^2 + 0.0152909\,\lambda^{-2} + 0.000407406\,\lambda^{-4} - 2.19563 \times 10^{-5}\,\lambda^{-6} + 1.5739 \times 10^{-6}\,\lambda^{-8}}$$
Thermal Properties
TCE -30/70°C (10-6/K) 6.6
TCE 100/300°C (10-6/K) 7.7
Thermal Conductivity (W/mK) —
Heat Capacity (J/gK) —
$$\frac{dn}{dT} = \frac{n_0^2 - 1}{2\,n_0}\left[5.096 \times 10^{-6} + 2(0)\,\Delta T + 3(0)\,\Delta T^2 + \frac{0 + 2(0)\,\Delta T}{\lambda - 0}\right] \Delta T = T - T_0, \quad T_0 = 25\,°\text{C}$$
Physical Properties
Density (g/cm³) 3.6
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
BACD6 Hoya 1.613753 56.377856
SK6 Schott 1.61375 56.397311
C13-56 Corning 1.613498 56.417725
SK1 Sumita 1.61025 56.5
BACD1 Hoya 1.610248 56.650958
SK8 Schott 1.611171 55.917724
SK1 Schott 1.61025 56.712386
BACD8 Hoya 1.611168 55.774369
H-ZK5 CDGM 1.61117 55.772437
C07-57 Corning 1.607504 56.610495
Similar Glasses (Ohara)
Glass Manufacturer nd Vd
BSM2 Ohara 1.607379 56.815789
S-BSM2 Ohara 1.607379 56.816076
S-BSM9 Ohara 1.614047 54.990097
BSM9 Ohara 1.614047 54.971106
S-BSM10 Ohara 1.622799 57.052723
BSM10 Ohara 1.622799 57.063643
BSM24 Ohara 1.617646 55.049782
BSM15 Ohara 1.622992 58.143312
S-BSM15 Ohara 1.622992 58.165763
S-BSM21 Ohara 1.617195 54.062144
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