D17-48 by Corning

Standard Unknown Environmentally Friendly

D17-48 by Corning is a standard optical glass. It transmits from 0.32 to 1.80 µm with an nd of 1.717011 and a Vd of 47.998493. It has low thermal expansion (CTE of 6.0×10⁻⁶/K).

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 Compare
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 Compare
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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