D263TECO by Schott

Special Unknown Environmentally Dangerous

D263TECO by Schott is a special optical glass. It transmits from 0.33 to 2.33 µm with an nd of 1.523303 and a Vd of 54.5172. It has medium thermal expansion (CTE of 7.2×10⁻⁶/K) and dangerous environmental properties.

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
Transmission Calculator
Valid wavelength range: 0.334–2.325 µm
Optical Properties
Refractive Index (nd) 1.523303
Abbe Number (Vd) 54.5172
Dispersion Formula Sellmeier
Wavelength Range 0.334 — 2.325 µm
$$n(\lambda) = \sqrt{1 + \frac{1.23796\,\lambda^2}{\lambda^2 - 0.00863081} + \frac{0.0466469\,\lambda^2}{\lambda^2 - 0.0469075} + \frac{2.46701\,\lambda^2}{\lambda^2 - 264.146}}$$
Thermal Properties
TCE -30/70°C (10-6/K) 7.2
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) 2.51
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 —
Notes

Clear borosilicate glass of high chemical resistance

Similar Glasses (Other Manufacturers)
Glass Manufacturer nd Vd Compare
KF3 Sumita 1.51454 54.6
CF3 Hoya 1.51454 54.628437
NSL33 Ohara 1.514536 54.714595
H-K12 CDGM 1.533589 55.469983
SBF5 Hoya 1.521299 52.780677
IRG15 Generic IR 1.534275 55.700357
SSL5 Ohara 1.521299 52.553447
S-NSL36 Ohara 1.517417 52.430903
NSL36 Ohara 1.517417 52.412251
ADP Generic Birefringent 1.523454 52.25678
Similar Glasses (Schott)
Glass Manufacturer nd Vd Compare
KF3 Schott 1.51454 54.702547
K5G20 Schott 1.52344 56.76
KF6 Schott 1.517421 52.200088
K4 Schott 1.518952 57.399398
N-KF9 Schott 1.52346 51.54
KZFN2 Schott 1.52944 51.626811
KF9 Schott 1.523412 51.492996
N-BALF5 Schott 1.54739 53.63
BALF5 Schott 1.547391 53.629486
K10 Schott 1.50137 56.41
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