Optical constants of CDGM - ZF (Dense flint)
ZF50
Wavelength:
µm
(0.370 – 2.400)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2=2.9228084-0.013029549λ^{2}+0.029540007λ^{-2}+0.0041308365λ^{-4}-0.00044721542λ^{-6}+3.7137603\text{×}10^{-05}λ^{-8}$$Conditions & Spec sheet
n_absolute: false
wavelength_vacuum: false
temperature: 20.0 ℃
thermal_dispersion:
- type: "Schott formula"
coefficients: 3.66e-06 2.91e-08 -3.18e-10 1.58e-06 6.74e-10 0.244
nd: 1.740770
Vd: 27.767880
glass_code: 741278
glass_status: preferred
density: 4.46 g/cm3
thermal_expansion:
- temperature_range: -30 70 ℃
coefficient: 7.1e-06 K-1
- temperature_range: 20 300 ℃
coefficient: 8.7e-06 K-1
dPgF: 0.005
References
CDGM Zemax catalog 2022-06 (obtained from http://www.cdgmgd.com)
See also CDGM optical glass data sheets