BAL35 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: 0.370–0.700 µm
Optical Properties
Refractive Index (nd) 1.58913
Abbe Number (Vd) 61.182174
Dispersion Formula Schott
Wavelength Range 0.365 — 0.9 µm
$$n(\lambda) = \sqrt{2.48753 - 0.0102287\,\lambda^2 + 0.0137431\,\lambda^{-2} + 0.000166254\,\lambda^{-4} + 6.25135 \times 10^{-6}\,\lambda^{-6} - 2.34204 \times 10^{-7}\,\lambda^{-8}}$$
Thermal Properties
TCE -30/70°C (10-6/K) 5.8
TCE 100/300°C (10-6/K) 6.7
Thermal Conductivity (W/mK) —
Heat Capacity (J/gK) —
$$\frac{dn}{dT} = \frac{n_0^2 - 1}{2\,n_0}\left[2.65 \times 10^{-6} + 2(0)\,\Delta T + 3(0)\,\Delta T^2 + \frac{0 + 2(0)\,\Delta T}{\lambda - 0}\right] \Delta T = T - T_0, \quad T_0 = 25\,°\text{C}$$
Physical Properties
Density (g/cm³) 3.31
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
K-SKLD5 Sumita 1.58913 61.2
SK5 Sumita 1.58913 61.2
K-SK5 Sumita 1.58913 61.2
D-ZK3 CDGM 1.58913 61.152901
P-SK58A Schott 1.58913 61.15
B89-61 Corning 1.588998 61.218914
BACD5 Hoya 1.58913 61.25
M-BACD5N Hoya 1.58913 61.25
MP-BACD5N Hoya 1.58913 61.25
MC-BACD5N Hoya 1.58913 61.25
Similar Glasses (Ohara)
Glass Manufacturer nd Vd
L-BAL35 Ohara 1.58913 61.152601
S-BAL35 Ohara 1.58913 61.135024
BAL35Y Ohara 1.58913 61.233033
S-BAL35R Ohara 1.58913 60.960312
L-BAL35P Ohara 1.59208 60.993997
L-BAL43 Ohara 1.585729 59.69698
BSM14 Ohara 1.603112 60.704896
BSM51Y Ohara 1.603109 60.651225
L-BAL42 Ohara 1.583126 59.385694
S-BSM14 Ohara 1.603112 60.64108
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