Optical constants of CDGM - ZF (Dense flint)
ZF52
Wavelength:
µm
(0.360–2.400)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2=3.242645-0.00779545833λ^{2}+0.0533808621λ^{-2}+0.00151154152λ^{-4}+7.22194744\text{×}10^{-05}λ^{-6}+1.6602659\text{×}10^{-05}λ^{-8}$$Conditions & Spec sheet
n_is_absolute: false wavelength_is_vacuum: false temperature: 20.0 °C thermal_dispersion: - type: "Schott formula" coefficients: 5.94e-06 2.59e-08 -2.29e-10 1.88e-06 1.39e-09 0.284 nd: 1.846669 Vd: 23.827549 glass_code: 847238 glass_status: preferred density: 5.49 g/cm3 thermal_expansion: - temperature_range: -30 70 °C coefficient: 8.6e-06 K-1 - temperature_range: 20 300 °C coefficient: 9.9e-06 K-1 dPgF: 0.014 climatic_resistance: 1.0
References
CDGM Zemax catalog 2022-06 (obtained from http://www.cdgmgd.com)
See also CDGM optical glass data sheets