PBL22 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: 0.320–0.900 µm
Optical Properties
Refractive Index (nd) 1.589206
Abbe Number (Vd) 41.07921
Dispersion Formula Schott
Wavelength Range 0.3 — 2.4 µm
$$n(\lambda) = \sqrt{2.46662 - 0.00760717\,\lambda^2 + 0.0201652\,\lambda^{-2} + 0.000282792\,\lambda^{-4} + 3.08792 \times 10^{-5}\,\lambda^{-6} + 6.64717 \times 10^{-7}\,\lambda^{-8}}$$
Thermal Properties
TCE -30/70°C (10-6/K) 9.1
TCE 100/300°C (10-6/K) 10.0
Thermal Conductivity (W/mK) —
Heat Capacity (J/gK) —
$$\frac{dn}{dT} = \frac{n_0^2 - 1}{2\,n_0}\left[1.581 \times 10^{-6} + 2(0)\,\Delta T + 3(0)\,\Delta T^2 + \frac{0 + 2(0)\,\Delta T}{\lambda - 0}\right] \Delta T = T - T_0, \quad T_0 = 25\,°\text{C}$$
Physical Properties
Density (g/cm³) 3.3
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
LF2 Sumita 1.58921 41.0
LF5G15 Schott 1.58397 40.83
LF5HT Schott 1.581483 40.913786
E-FL5 Hoya 1.58144 40.89
LF5HTi Schott 1.58144 40.89
H-QF50 CDGM 1.58144 40.888972
QF50 CDGM 1.58144 40.885954
QF50GTI CDGM 1.58144 40.885954
FL5 Hoya 1.581437 40.887611
LF5 Schott 1.58144 40.85
Similar Glasses (Ohara)
Glass Manufacturer nd Vd
PBL35Y Ohara 1.581591 40.855991
PBL25Y Ohara 1.581439 40.768047
PBL25 Ohara 1.581439 40.753351
S-TIL25 Ohara 1.581439 40.747566
PBL27 Ohara 1.575006 41.491052
S-TIL27 Ohara 1.575006 41.505207
PBM8Y Ohara 1.595509 39.260208
S-TIM8 Ohara 1.595509 39.242273
PBM8 Ohara 1.595508 39.213424
BAM25 Ohara 1.60323 42.320943
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