Optical constants of CDGM - F (Flint)
F13
Wavelength:
µm
(0.320 – 2.400)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2=2.56957078-0.00760403138λ^{2}+0.0249680705λ^{-2}+0.000334501945λ^{-4}+5.6815438\text{×}10^{-05}λ^{-6}+6.07326285\text{×}10^{-07}λ^{-8}$$Conditions & Spec sheet
n_absolute: false wavelength_vacuum: false temperature: 20.0 ℃ thermal_dispersion: - type: "Schott formula" coefficients: -1.89e-06 2.03e-08 -1.74e-10 1.05e-06 9.12e-10 0.237 nd: 1.625884 Vd: 35.713679 glass_code: 626357 glass_status: preferred density: 3.63 g/cm3 thermal_expansion: - temperature_range: -30 70 ℃ coefficient: 9.4e-06 K-1 - temperature_range: 20 300 ℃ coefficient: 1.11e-05 K-1 dPgF: -0.0009 climatic_resistance: 2.0
References
CDGM Zemax catalog 2022-06 (obtained from http://www.cdgmgd.com)
See also CDGM optical glass data sheets