BAL11 by Ohara

Obsolete Unknown Environmentally Dangerous
Refractive Index vs Wavelength
Refractive Index Calculator
Valid range: 0.365–0.9 µm
dn/dλ vs Wavelength
dn/dλ Calculator
Valid range: 0.365–0.9 µm
Abbe Number Calculator
Transmission vs Wavelength
Transmission Calculator
Valid wavelength range: 0.360–0.900 µm
Optical Properties
Refractive Index (nd) 1.572501
Abbe Number (Vd) 57.760854
Dispersion Formula Schott
Wavelength Range 0.365 — 0.9 µm
$$n(\lambda) = \sqrt{2.43381 - 0.00932105\,\lambda^2 + 0.0139733\,\lambda^{-2} + 0.000180473\,\lambda^{-4} + 7.76364 \times 10^{-6}\,\lambda^{-6} - 1.18487 \times 10^{-7}\,\lambda^{-8}}$$
Thermal Properties
TCE -30/70°C (10-6/K) 7.2
TCE 100/300°C (10-6/K) 8.6
Thermal Conductivity (W/mK) —
Heat Capacity (J/gK) —
$$\frac{dn}{dT} = \frac{n_0^2 - 1}{2\,n_0}\left[3.5762 \times 10^{-6} + 2(0)\,\Delta T + 3(0)\,\Delta T^2 + \frac{0 + 2(0)\,\Delta T}{\lambda - 0}\right] \Delta T = T - T_0, \quad T_0 = 25\,°\text{C}$$
Physical Properties
Density (g/cm³) 3.09
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 —
Similar Glasses (Other Manufacturers)
Glass Manufacturer nd Vd
N-BAK1 Schott 1.5725 57.55
BAK1 Schott 1.5725 57.54931
BAK1 Sumita 1.5725 57.5
B72-57 Corning 1.572498 57.494511
BAC1 Hoya 1.572497 57.488684
H-BAK8 CDGM 1.5725 57.486797
BAK50 Schott 1.567736 57.990411
BAC6 Hoya 1.574441 56.357089
K-CSK158(M) Sumita 1.58157 56.7
BAK4 Schott 1.56883 56.130661
Similar Glasses (Ohara)
Glass Manufacturer nd Vd
S-BAL11 Ohara 1.572501 57.74298
S-BAL14 Ohara 1.568832 56.363897
BAL14 Ohara 1.568832 56.339266
BAL42 Ohara 1.583126 59.373789
S-BAL42 Ohara 1.583126 59.374673
L-BAL42 Ohara 1.583126 59.385694
BAL15Y Ohara 1.556711 58.679177
BAL15 Ohara 1.556711 58.689461
L-BAL42P Ohara 1.58593 59.248294
L-BAL43 Ohara 1.585729 59.69698
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