Optical constants of CDGM - QF (Light flint)
H-QF56
Wavelength:
µm
(0.350–2.400)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{1.01193506λ^2}{λ^2-116.639064}+\frac{0.110711906λ^2}{λ^2-0.051103672}+\frac{1.29397308λ^2}{λ^2-0.00923739628}$$Conditions & Spec sheet
n_is_absolute: false
wavelength_is_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
- type: "Schott formula"
coefficients: -4.86e-06 1.38e-08 -3.64e-11 7.51e-07 4.38e-11 0.236
nd: 1.567320
Vd: 42.810117
glass_code: 567428
density: 2.62 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 9.4e-06 K-1
- temperature_range: 20 300 °C
coefficient: 1.11e-05 K-1
dPgF: 0.0028
climatic_resistance: 1.0
References
CDGM Zemax catalog 2022-06 (obtained from http://www.cdgmgd.com)
See also CDGM optical glass data sheets