BAL5 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: 0.310–0.900 µm
Optical Properties
Refractive Index (nd) 1.547393
Abbe Number (Vd) 53.550738
Dispersion Formula Schott
Wavelength Range 0.3 — 2.4 µm
$$n(\lambda) = \sqrt{2.3551 - 0.00869522\,\lambda^2 + 0.0137975\,\lambda^{-2} + 0.000276076\,\lambda^{-4} + 9.60256 \times 10^{-8}\,\lambda^{-6} + 6.07658 \times 10^{-7}\,\lambda^{-8}}$$
Thermal Properties
TCE -30/70°C (10-6/K) 9.2
TCE 100/300°C (10-6/K) 10.6
Thermal Conductivity (W/mK) —
Heat Capacity (J/gK) —
$$\frac{dn}{dT} = \frac{n_0^2 - 1}{2\,n_0}\left[-1.103 \times 10^{-6} + 2(0)\,\Delta T + 3(0)\,\Delta T^2 + \frac{0 + 2(0)\,\Delta T}{\lambda - 0}\right] \Delta T = T - T_0, \quad T_0 = 25\,°\text{C}$$
Physical Properties
Density (g/cm³) 2.82
Relative Cost —
Mechanical Properties
Young's Modulus (GPa) —
Poisson's Ratio —
Knoop Hardness (kgf/mm²) —
Chemical Resistance
Climatic Resistance —
Stain Resistance —
Acid Resistance 2
Alkali Resistance —
Phosphate Resistance 2
Similar Glasses (Other Manufacturers)
Glass Manufacturer nd Vd
BALF5 Sumita 1.54739 53.6
B48-53 Corning 1.547753 53.492251
BALF5 Schott 1.547391 53.629486
N-BALF5 Schott 1.54739 53.63
N-KZFS2 Schott 1.55836 54.01
KZFSN2 Schott 1.558361 54.157173
BPG2 Sumita 1.5592 53.9
K-BPG2 Sumita 1.5592 53.9
B58-53 Corning 1.557511 52.533062
ADF1 Hoya 1.564997 52.958253
Similar Glasses (Ohara)
Glass Manufacturer nd Vd
SSL2 Ohara 1.529441 51.722557
BAL3 Ohara 1.571351 52.968158
S-BAL3 Ohara 1.571351 52.952106
SSL5 Ohara 1.521299 52.553447
BAL14 Ohara 1.568832 56.339266
S-BAL14 Ohara 1.568832 56.363897
S-NSL36 Ohara 1.517417 52.430903
S-BAL2 Ohara 1.570989 50.799858
BAL2 Ohara 1.570989 50.797474
NSL36 Ohara 1.517417 52.412251
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