Optical constants of CDGM - QF (Light flint)
QF5
Wavelength:
µm
(0.320–2.400)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2=2.4440594-0.0067974631λ^{2}+0.021425387λ^{-2}-0.00038544649λ^{-4}+0.00012195244λ^{-6}-4.2162236\text{×}10^{-06}λ^{-8}$$Conditions & Spec sheet
n_is_absolute: false
wavelength_is_vacuum: false
temperature: 20.0 °C
nd: 1.582153
Vd: 42.039634
glass_code: 582420
glass_status: preferred
density: 3.22 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 8.3e-06 K-1
- temperature_range: 20 300 °C
coefficient: 1.01e-05 K-1
dPgF: -0.0014
References
CDGM Zemax catalog 2022-06 (obtained from http://www.cdgmgd.com)
See also CDGM optical glass data sheets