C04-64 by Corning

Standard Unknown Environmentally Friendly
Refractive Index vs Wavelength
Refractive Index Calculator
Valid range: 0.32–1.8 µm
dn/dλ vs Wavelength
dn/dλ Calculator
Valid range: 0.32–1.8 µm
Abbe Number Calculator
Transmission vs Wavelength
Transmission Calculator
Valid wavelength range: 0.320–1.800 µm
Optical Properties
Refractive Index (nd) 1.603507
Abbe Number (Vd) 63.401916
Dispersion Formula Schott
Wavelength Range 0.32 — 1.8 µm
$$n(\lambda) = \sqrt{2.53332 - 0.008168\,\lambda^2 + 0.012877\,\lambda^{-2} + 0.000511\,\lambda^{-4} - 4.1 \times 10^{-5}\,\lambda^{-6} + 2 \times 10^{-6}\,\lambda^{-8}}$$
Thermal Properties
TCE -30/70°C (10-6/K) 9.1
TCE 100/300°C (10-6/K) 12.9
Thermal Conductivity (W/mK)
Heat Capacity (J/gK)
$$\frac{dn}{dT} = \frac{n_0^2 - 1}{2\,n_0}\left[-1.65 \times 10^{-5} + 2(0)\,\Delta T + 3(0)\,\Delta T^2 + \frac{0 + 2(0)\,\Delta T}{\lambda - 0}\right] \Delta T = T - T_0, \quad T_0 = 20\,°\text{C}$$
Physical Properties
Density (g/cm³) 3.67
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
LBC3N Hoya 1.60625 63.72
PCD5 Hoya 1.616998 62.827457
PHM51 Ohara 1.617001 62.800809
S-PHM51 Ohara 1.617001 62.800809
PHM52 Ohara 1.617999 63.386441
K-PSKn2 Sumita 1.618 63.4
PCD4 Hoya 1.618 63.4
PSKN2 Sumita 1.618 63.4
H-ZPK1A CDGM 1.618 63.392702
N-PSK53A Schott 1.618 63.39
Similar Glasses (Corning)
Glass Manufacturer nd Vd
B89-61 Corning 1.588998 61.218914
C20-60 Corning 1.620406 60.332956
B96-67 Corning 1.596306 67.398269
C09-59 Corning 1.608756 59.036803
C13-58 Corning 1.612693 58.570371
B64-61 Corning 1.564005 60.964853
C23-58 Corning 1.623004 58.102071
C41-60 Corning 1.640495 60.130957
C07-57 Corning 1.607504 56.610495
C23-57 Corning 1.622801 56.922436
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