A63-65 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) 1.464501
Abbe Number (Vd) 65.763211
Dispersion Formula Schott
Wavelength Range 0.29 — 1.8 µm
$$n(\lambda) = \sqrt{2.12165 - 0.00950349\,\lambda^2 + 0.00831869\,\lambda^{-2} + 0.000333957\,\lambda^{-4} - 2.36417 \times 10^{-5}\,\lambda^{-6} + 9.97218 \times 10^{-7}\,\lambda^{-8}}$$
Thermal Properties
TCE -30/70°C (10-6/K) 7.8
TCE 100/300°C (10-6/K) 8.8
Thermal Conductivity (W/mK)
Heat Capacity (J/gK)
$$\frac{dn}{dT} = \frac{n_0^2 - 1}{2\,n_0}\left[0 + 2(0)\,\Delta T + 3(0)\,\Delta T^2 + \frac{0 + 2(0)\,\Delta T}{\lambda - 0}\right] \Delta T = T - T_0, \quad T_0 = 20\,°\text{C}$$
Physical Properties
Density (g/cm³) 2.25
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
FC3 Hoya 1.464502 65.767612
FK3 Schott 1.4645 65.77
FSL3 Ohara 1.464499 65.938855
FC1 Hoya 1.470787 66.706713
H-QK1 CDGM 1.47047 66.876032
HOQ Heraeus 1.458563 67.664757
HOMOSIL Heraeus 1.458563 67.664757
INFRASIL Heraeus 1.458563 67.664757
HERASIL Heraeus 1.458563 67.664757
F_SILICA Generic IR 1.458464 67.821433
Similar Glasses (Corning)
Glass Manufacturer nd Vd
C79-80 Corning 1.458467 67.795012
A88-66 Corning 1.487502 65.807152
A87-70 Corning 1.487248 70.500557
B10-63 Corning 1.509992 63.551713
B16-64 Corning 1.516804 64.224234
B18-65 Corning 1.518199 65.115452
B11-60 Corning 1.510999 60.383147
B19-61 Corning 1.519061 61.386004
B18-60 Corning 1.518201 60.291781
B23-59 Corning 1.522996 59.479482
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