D17-48 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) 1.717011
Abbe Number (Vd) 47.998493
Dispersion Formula Schott
Wavelength Range 0.32 — 1.8 µm
$$n(\lambda) = \sqrt{2.88126 - 0.0106736\,\lambda^2 + 0.0235885\,\lambda^{-2} + 0.00014699\,\lambda^{-4} + 4.44509 \times 10^{-5}\,\lambda^{-6} - 1.31558 \times 10^{-6}\,\lambda^{-8}}$$
Thermal Properties
TCE -30/70°C (10-6/K) 6.0
TCE 100/300°C (10-6/K) 6.9
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) 3.97
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
LAF3 Hoya 1.717 47.98
LAF30 Hoya 1.717 47.97772
LAF3 Schott 1.716998 47.961124
N-LAF3 Schott 1.717 47.96
LAM3 Ohara 1.717004 47.942632
S-LAM3 Ohara 1.717004 47.927969
LAF3 Sumita 1.717 47.9
H-LAF2 CDGM 1.717 47.888609
LAM61 Ohara 1.720002 46.035166
S-LAM61 Ohara 1.720002 46.024571
Similar Glasses (Corning)
Glass Manufacturer nd Vd
D20-50 Corning 1.720003 50.312121
D34-51 Corning 1.733513 51.387663
C90-50 Corning 1.689009 49.625392
D44-45 Corning 1.744001 44.818533
D13-54 Corning 1.713 53.843096
C70-47 Corning 1.670005 47.112037
C67-48 Corning 1.666698 48.434395
D01-41 Corning 1.701805 41.110216
C90-55 Corning 1.691008 54.793839
C97-55 Corning 1.697005 55.409848
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