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