Optical constants of CDGM - F (Flint)
F7
Wavelength:
µm
(0.330–2.400)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2=2.6027537-0.0084678903λ^{2}+0.0246596174λ^{-2}+0.00074451296λ^{-4}-4.85328405\text{×}10^{-06}λ^{-6}+4.25920114\text{×}10^{-06}λ^{-8}$$Conditions & Spec sheet
n_is_absolute: false
wavelength_is_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
- type: "Schott formula"
coefficients: 1.17e-06 2.08e-08 -1.11e-10 1.16e-06 2.78e-10 0.217
nd: 1.636365
Vd: 35.386204
glass_code: 636354
glass_status: preferred
density: 3.73 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 8.5e-06 K-1
- temperature_range: 20 300 °C
coefficient: 9.7e-06 K-1
dPgF: -0.0033
climatic_resistance: 1.0
References
CDGM Zemax catalog 2022-06 (obtained from http://www.cdgmgd.com)
See also CDGM optical glass data sheets