Optical constants of CDGM - FK (Fluor crown)
H-KF6
Wavelength:
µm
(0.340–2.400)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{0.0736995941λ^2}{λ^2-0.0478548878}+\frac{1.19277164λ^2}{λ^2-0.00781132706}+\frac{1.01749455λ^2}{λ^2-104.241959}$$Conditions & Spec sheet
n_is_absolute: false wavelength_is_vacuum: false temperature: 20.0 °C thermal_dispersion: - type: "Schott formula" coefficients: -5.94e-07 1.77e-08 -1.13e-10 5.53e-07 9.82e-10 0.212 nd: 1.517420 Vd: 52.149249 glass_code: 517522 density: 2.47 g/cm3 thermal_expansion: - temperature_range: -30 70 °C coefficient: 7e-06 K-1 - temperature_range: 20 300 °C coefficient: 8.8e-06 K-1 dPgF: 0.0022 climatic_resistance: 1.0
References
CDGM Zemax catalog 2022-06 (obtained from http://www.cdgmgd.com)
See also CDGM optical glass data sheets