PBL1 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: 0.310–0.700 µm
Optical Properties
Refractive Index (nd) 1.548141
Abbe Number (Vd) 45.781144
Dispersion Formula Schott
Wavelength Range 0.3 — 2.4 µm
$$n(\lambda) = \sqrt{2.34897 - 0.00758699\,\lambda^2 + 0.0166848\,\lambda^{-2} + 0.000171476\,\lambda^{-4} + 2.51948 \times 10^{-5}\,\lambda^{-6} + 1.85239 \times 10^{-7}\,\lambda^{-8}}$$
Thermal Properties
TCE -30/70°C (10-6/K) 8.4
TCE 100/300°C (10-6/K) 9.7
Thermal Conductivity (W/mK) —
Heat Capacity (J/gK) —
$$\frac{dn}{dT} = \frac{n_0^2 - 1}{2\,n_0}\left[3.091 \times 10^{-6} + 2(0)\,\Delta T + 3(0)\,\Delta T^2 + \frac{0 + 2(0)\,\Delta T}{\lambda - 0}\right] \Delta T = T - T_0, \quad T_0 = 25\,°\text{C}$$
Physical Properties
Density (g/cm³) 2.93
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
LLF1 Schott 1.54814 45.75
E-FEL1 Hoya 1.54814 45.82
H-QF1 CDGM 1.54814 45.820011
FEL1 Hoya 1.548136 45.822169
B48-46 Corning 1.548098 45.718533
N-LLF1 Schott 1.54814 45.851572
QF1 CDGM 1.5481 45.886233
LLF1HT Schott 1.548144 45.888593
LLF1 Sumita 1.54814 45.9
LLF1HTi Schott 1.54815 45.9
Similar Glasses (Ohara)
Glass Manufacturer nd Vd
S-TIL1 Ohara 1.548141 45.784277
PBL1Y Ohara 1.548141 45.733282
PBL7 Ohara 1.548689 45.555746
S-TIL2 Ohara 1.54072 47.227127
PBL2 Ohara 1.54072 47.23368
FTM8 Ohara 1.532565 45.914102
S-TIL6 Ohara 1.531717 48.840718
PBL6 Ohara 1.531717 48.904553
PBL6Y Ohara 1.531717 48.956017
PBL26Y Ohara 1.567322 42.855569
Compare Glasses
    Compare Selected