BSL1 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: 0.300–0.900 µm
Optical Properties
Refractive Index (nd) 1.510091
Abbe Number (Vd) 63.635037
Dispersion Formula Schott
Wavelength Range 0.3 — 2.4 µm
$$n(\lambda) = \sqrt{2.25135 - 0.00931483\,\lambda^2 + 0.0107046\,\lambda^{-2} + 0.000121879\,\lambda^{-4} + 1.0654 \times 10^{-5}\,\lambda^{-6} - 7.44282 \times 10^{-7}\,\lambda^{-8}}$$
Thermal Properties
TCE -30/70°C (10-6/K) 8.0
TCE 100/300°C (10-6/K) 9.4
Thermal Conductivity (W/mK) —
Heat Capacity (J/gK) —
$$\frac{dn}{dT} = \frac{n_0^2 - 1}{2\,n_0}\left[4.552 \times 10^{-6} + 2(0)\,\Delta T + 3(0)\,\Delta T^2 + \frac{0 + 2(0)\,\Delta T}{\lambda - 0}\right] \Delta T = T - T_0, \quad T_0 = 25\,°\text{C}$$
Physical Properties
Density (g/cm³) 2.48
Relative Cost —
Mechanical Properties
Young's Modulus (GPa) —
Poisson's Ratio —
Knoop Hardness (kgf/mm²) —
Chemical Resistance
Climatic Resistance —
Stain Resistance —
Acid Resistance 1
Alkali Resistance —
Phosphate Resistance 1
Similar Glasses (Other Manufacturers)
Glass Manufacturer nd Vd
B10-63 Corning 1.509992 63.551713
BK1 Schott 1.510091 63.464788
BSC1 Hoya 1.510091 63.435118
BK1 Sumita 1.51009 63.4
H-K5 CDGM 1.510072 63.364525
K-PBK40(M) Sumita 1.51497 63.3
D-K9GT-25 CDGM 1.51577 63.989637
D-K9-25 CDGM 1.51577 63.989637
D-K9 CDGM 1.51633 64.058952
D-K9GT CDGM 1.51633 64.058952
Similar Glasses (Ohara)
Glass Manufacturer nd Vd
S-BSL7R Ohara 1.51633 63.881689
L-BSL7 Ohara 1.51633 64.065129
S-BSL7 Ohara 1.51633 64.142022
BSL7 Ohara 1.51633 64.150145
BSL7Y Ohara 1.51633 64.243778
BSL22 Ohara 1.518206 65.039654
BSL3 Ohara 1.498308 65.026785
NSL7 Ohara 1.511121 60.485793
BSL21 Ohara 1.503779 66.814545
S-NSL5 Ohara 1.522494 59.835417
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