Optical constants of CDGM - ZF (Dense flint)
ZF10
Wavelength:
µm
(0.340–2.400)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2=2.75929053-0.00920455833λ^{2}+0.0293164338λ^{-2}+0.00148740799λ^{-4}-7.05223488\text{×}10^{-05}λ^{-6}+9.9538848\text{×}10^{-06}λ^{-8}$$Conditions & Spec sheet
n_is_absolute: false
wavelength_is_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
- type: "Schott formula"
coefficients: 4.02e-06 3.02e-08 -2.4e-10 1.33e-06 -1.33e-10 0.247
nd: 1.688934
Vd: 31.184753
glass_code: 689312
glass_status: preferred
density: 4.21 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 7.6e-06 K-1
- temperature_range: 20 300 °C
coefficient: 9.2e-06 K-1
dPgF: -0.0002
References
CDGM Zemax catalog 2022-06 (obtained from http://www.cdgmgd.com)
See also CDGM optical glass data sheets