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_absolute: false
wavelength_vacuum: false
temperature: 20.0 ℃
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 ℃
coefficient: 7e-06 K-1
- temperature_range: 20 300 ℃
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