Optical constants of CDGM - FK (Fluor crown)
H-FK61
Wavelength:
µm
(0.280–2.400)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{0.502504076λ^2}{λ^2-0.00132743798}+\frac{0.715240076λ^2}{λ^2-0.0108378966}+\frac{0.836628986λ^2}{λ^2-155.933755}$$Conditions & Spec sheet
n_is_absolute: false wavelength_is_vacuum: false temperature: 20.0 °C thermal_dispersion: - type: "Schott formula" coefficients: -2.07e-05 -3.7e-10 -2.32e-11 3.49e-07 2.63e-10 0.18 nd: 1.497000 Vd: 81.612838 glass_code: 497816 glass_status: standard density: 3.7 g/cm3 thermal_expansion: - temperature_range: -30 70 °C coefficient: 1.31e-05 K-1 - temperature_range: 20 300 °C coefficient: 1.57e-05 K-1 dPgF: 0.0312 climatic_resistance: 1.0
References
CDGM Zemax catalog 2022-06 (obtained from http://www.cdgmgd.com)
See also CDGM optical glass data sheets