C67-48 by Corning

Standard Unknown Environmentally Friendly

C67-48 by Corning is a standard optical glass. It transmits from 0.33 to 1.80 µm with an nd of 1.666698 and a Vd of 48.434395. It has medium thermal expansion (CTE of 7.0×10⁻⁶/K).

Refractive Index vs Wavelength
Refractive Index Calculator
Valid range: 0.33–1.8 µm
dn/dλ vs Wavelength
dn/dλ Calculator
Valid range: 0.33–1.8 µm
Abbe Number Calculator
Transmission vs Wavelength
Transmission Calculator
Valid wavelength range: 0.330–1.800 µm
Optical Properties
Refractive Index (nd) 1.666698
Abbe Number (Vd) 48.434395
Dispersion Formula Schott
Wavelength Range 0.33 — 1.8 µm
$$n(\lambda) = \sqrt{2.7173 - 0.00778079\,\lambda^2 + 0.021028\,\lambda^{-2} + 0.000193229\,\lambda^{-4} + 3.18705 \times 10^{-5}\,\lambda^{-6} - 4.85244 \times 10^{-7}\,\lambda^{-8}}$$
Thermal Properties
TCE -30/70°C (10-6/K) 7.0
TCE 100/300°C (10-6/K) 8.2
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) 4.03
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 Compare
H-ZBAF16 CDGM 1.66672 48.421731
BAFN11 Schott 1.666721 48.421391
BAF11 Sumita 1.66672 48.4
S-BAH11 Ohara 1.666718 48.325247
BAH11 Ohara 1.666718 48.317266
BAF11 Hoya 1.66672 48.3
BAF21 Hoya 1.66422 48.941939
K-BaFn3 Sumita 1.66422 49.2
BAFN3 Sumita 1.66422 49.2
CALCITE Generic Birefringent 1.658643 48.541403
Similar Glasses (Corning)
Glass Manufacturer nd Vd Compare
C70-47 Corning 1.670005 47.112037
C58-51 Corning 1.658503 51.012014
C90-50 Corning 1.689009 49.625392
C48-46 Corning 1.647747 46.227993
C24-47 Corning 1.624 46.940278
D17-48 Corning 1.717011 47.998493
C90-55 Corning 1.691008 54.793839
C38-42 Corning 1.637752 42.433862
C78-56 Corning 1.678004 55.519168
D20-50 Corning 1.720003 50.312121
Compare Glasses
    Compare Selected