B23-59 by Corning

Standard Unknown Environmentally Friendly
Refractive Index vs Wavelength
Refractive Index Calculator
Valid range: 0.29–1.8 µm
dn/dλ vs Wavelength
dn/dλ Calculator
Valid range: 0.29–1.8 µm
Abbe Number Calculator
Transmission vs Wavelength
Transmission Calculator
Valid wavelength range: 0.290–1.800 µm
Optical Properties
Refractive Index (nd) 1.522996
Abbe Number (Vd) 59.479482
Dispersion Formula Schott
Wavelength Range 0.29 — 1.8 µm
$$n(\lambda) = \sqrt{2.28799 - 0.00982914\,\lambda^2 + 0.0111168\,\lambda^{-2} + 0.000382464\,\lambda^{-4} - 2.41256 \times 10^{-5}\,\lambda^{-6} + 1.41834 \times 10^{-6}\,\lambda^{-8}}$$
Thermal Properties
TCE -30/70°C (10-6/K) 6.8
TCE 100/300°C (10-6/K) 8.4
Thermal Conductivity (W/mK) —
Heat Capacity (J/gK) —
$$\frac{dn}{dT} = \frac{n_0^2 - 1}{2\,n_0}\left[2.9 \times 10^{-6} + 2(0)\,\Delta T + 3(0)\,\Delta T^2 + \frac{0 + 2(0)\,\Delta T}{\lambda - 0}\right] \Delta T = T - T_0, \quad T_0 = 20\,°\text{C}$$
Physical Properties
Density (g/cm³) 2.59
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
N-K5 Schott 1.52249 59.48
H-K50 CDGM 1.52249 59.480754
K5 Schott 1.522489 59.482671
C5 Hoya 1.522488 59.447258
K5HT Schott 1.522453 59.530889
K5 Sumita 1.52249 59.6
KN1 Sumita 1.524 59.3
NSL5 Ohara 1.522494 59.790926
S-NSL5 Ohara 1.522494 59.835417
K50 Schott 1.522572 60.179756
Similar Glasses (Corning)
Glass Manufacturer nd Vd
B18-60 Corning 1.518201 60.291781
B11-60 Corning 1.510999 60.383147
B19-61 Corning 1.519061 61.386004
B39-59 Corning 1.539505 59.712433
B10-63 Corning 1.509992 63.551713
B16-64 Corning 1.516804 64.224234
B18-65 Corning 1.518199 65.115452
B64-61 Corning 1.564005 60.964853
B48-53 Corning 1.547753 53.492251
B72-57 Corning 1.572498 57.494511
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