Optical constants of CDGM - QF (Light flint)
H-QF8
Wavelength:
µm
(0.340–2.400)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{0.127874264λ^2}{λ^2-0.0424546034}+\frac{1.20201357λ^2}{λ^2-0.00811385854}+\frac{0.92946936λ^2}{λ^2-109.832978}$$Conditions & Spec sheet
n_is_absolute: false
wavelength_is_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
- type: "Schott formula"
coefficients: -2.28e-06 1.48e-08 -8.66e-11 5.08e-07 1.15e-10 0.282
nd: 1.540720
Vd: 47.230007
glass_code: 541472
density: 2.54 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 9.6e-06 K-1
- temperature_range: 20 300 °C
coefficient: 1.13e-05 K-1
dPgF: 0.0002
climatic_resistance: 2.0
References
CDGM Zemax catalog 2022-06 (obtained from http://www.cdgmgd.com)
See also CDGM optical glass data sheets