Optical constants of CDGM - F (Flint)
F4
Wavelength:
µm
(0.320–2.400)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2=2.5544667-0.00847847799λ^{2}+0.0232832892λ^{-2}+0.000583809482λ^{-4}+2.1963001\text{×}10^{-05}λ^{-6}+1.96537708\text{×}10^{-06}λ^{-8}$$Conditions & Spec sheet
n_is_absolute: false
wavelength_is_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
- type: "Schott formula"
coefficients: -2.9e-06 2.24e-08 -2.95e-11 9.73e-07 8.74e-10 0.246
nd: 1.620047
Vd: 36.356730
glass_code: 620364
glass_status: preferred
density: 3.57 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 9.1e-06 K-1
- temperature_range: 20 300 °C
coefficient: 1.14e-05 K-1
climatic_resistance: 1.0
References
CDGM Zemax catalog 2022-06 (obtained from http://www.cdgmgd.com)
See also CDGM optical glass data sheets