Optical constants of CDGM - ZF (Dense flint)
ZF12
Wavelength:
µm
(0.380–2.400)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2=2.99506991-0.0165672521λ^{2}+0.0256701429λ^{-2}+0.00670445128λ^{-4}-0.000837476647λ^{-6}+6.26402774\text{×}10^{-05}λ^{-8}$$Conditions & Spec sheet
n_is_absolute: false
wavelength_is_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
- type: "Schott formula"
coefficients: 4.33e-06 2.64e-08 -2.01e-11 1.43e-06 1.62e-09 0.284
nd: 1.761822
Vd: 26.555686
glass_code: 762266
glass_status: preferred
density: 4.64 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 7.5e-06 K-1
- temperature_range: 20 300 °C
coefficient: 8.9e-06 K-1
dPgF: 0.0066
References
CDGM Zemax catalog 2022-06 (obtained from http://www.cdgmgd.com)
See also CDGM optical glass data sheets