Optical constants of CDGM - QF (Light flint)
QF8
Wavelength:
µm
(0.310–2.400)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2=2.3287431-0.00786798λ^{2}+0.015763854λ^{-2}+0.00019794235λ^{-4}+1.8002892\text{×}10^{-05}λ^{-6}+3.6533474\text{×}10^{-07}λ^{-8}$$Conditions & Spec sheet
n_is_absolute: false
wavelength_is_vacuum: false
temperature: 20.0 °C
nd: 1.540718
Vd: 47.198243
glass_code: 541472
glass_status: preferred
density: 2.86 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 8.5e-06 K-1
- temperature_range: 20 300 °C
coefficient: 9.8e-06 K-1
dPgF: -0.0032
References
CDGM Zemax catalog 2022-06 (obtained from http://www.cdgmgd.com)
See also CDGM optical glass data sheets