C20-36 by Corning

Obsolete Unknown Environmentally Friendly

C20-36 by Corning is an obsolete optical glass. It transmits from 0.33 to 2.33 µm with an nd of 1.62001 and a Vd of 36.30126.

Refractive Index vs Wavelength
Refractive Index Calculator
Valid range: 0.334–2.325 µm
dn/dλ vs Wavelength
dn/dλ Calculator
Valid range: 0.334–2.325 µm
Abbe Number Calculator
Transmission vs Wavelength

No transmission data available.

Transmission Calculator
Valid wavelength range: 0.334–2.325 µm
Optical Properties
Refractive Index (nd) 1.62001
Abbe Number (Vd) 36.30126
Dispersion Formula Schott
Wavelength Range 0.334 — 2.325 µm
$$n(\lambda) = \sqrt{2.5531 - 0.00784034\,\lambda^2 + 0.0239755\,\lambda^{-2} + 0.000422121\,\lambda^{-4} + 3.90058 \times 10^{-5}\,\lambda^{-6} + 1.37448 \times 10^{-6}\,\lambda^{-8}}$$
Thermal Properties
TCE -30/70°C (10-6/K) —
TCE 100/300°C (10-6/K) —
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) —
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
E-F2 Hoya 1.62004 36.3
F2 Sumita 1.62004 36.3
F2 Hoya 1.62004 36.303385
PBM2Y Ohara 1.620041 36.269263
S-TIM2 Ohara 1.620041 36.263378
PBM2 Ohara 1.620041 36.256658
H-F4 CDGM 1.62005 36.345886
F4 CDGM 1.620047 36.35673
F2 Schott 1.62004 36.37
F2HTi Schott 1.62004 36.37
Similar Glasses (Corning)
Glass Manufacturer nd Vd Compare
C26-36 Corning 1.625903 35.60701
C37-35 Corning 1.636493 35.322642
C04-38 Corning 1.603499 38.110538
C48-34 Corning 1.647992 33.943274
C51-39 Corning 1.650206 39.193419
C55-40 Corning 1.6555 40.115717
C38-42 Corning 1.637752 42.433862
B81-41 Corning 1.581396 40.816116
C67-33 Corning 1.666997 33.114648
C06-44 Corning 1.605608 43.942859
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