C04-38 by Corning

Standard Unknown Environmentally Friendly

C04-38 by Corning is a standard optical glass. It transmits from 0.31 to 1.80 µm with an nd of 1.603499 and a Vd of 38.110538. It has medium thermal expansion (CTE of 8.1×10⁻⁶/K).

Refractive Index vs Wavelength
Refractive Index Calculator
Valid range: 0.31–1.8 µm
dn/dλ vs Wavelength
dn/dλ Calculator
Valid range: 0.31–1.8 µm
Abbe Number Calculator
Transmission vs Wavelength
Transmission Calculator
Valid wavelength range: 0.310–1.800 µm
Optical Properties
Refractive Index (nd) 1.603499
Abbe Number (Vd) 38.110538
Dispersion Formula Schott
Wavelength Range 0.31 — 1.8 µm
$$n(\lambda) = \sqrt{2.50598 - 0.00800046\,\lambda^2 + 0.0220752\,\lambda^{-2} + 0.000370096\,\lambda^{-4} + 3.61602 \times 10^{-5}\,\lambda^{-6} + 8.85836 \times 10^{-7}\,\lambda^{-8}}$$
Thermal Properties
TCE -30/70°C (10-6/K) 8.1
TCE 100/300°C (10-6/K) 9.2
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) 3.46
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
F5 Schott 1.60342 38.03
S-TIM5 Ohara 1.60342 38.027347
F5 Hoya 1.603417 38.014872
F1 CDGM 1.603417 38.01487
PBM5 Ohara 1.60342 38.012915
H-F1 CDGM 1.60342 38.010877
E-F5 Hoya 1.60342 38.01
F5 Sumita 1.60342 38.0
F14 Schott 1.601401 38.231923
F14HT Schott 1.601389 38.266237
Similar Glasses (Corning)
Glass Manufacturer nd Vd Compare
C20-36 Corning 1.62001 36.30126
C26-36 Corning 1.625903 35.60701
B81-41 Corning 1.581396 40.816116
C37-35 Corning 1.636493 35.322642
C06-44 Corning 1.605608 43.942859
C38-42 Corning 1.637752 42.433862
C13-44 Corning 1.613394 44.386543
C51-39 Corning 1.650206 39.193419
C16-44 Corning 1.616002 44.416477
C55-40 Corning 1.6555 40.115717
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