Optical constants of CDGM - ZF (Dense flint)
ZF7L
Wavelength:
µm
(0.360–2.400)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2=3.11724527-0.00977958678λ^{2}+0.0431752564λ^{-2}+0.00252279577λ^{-4}-0.00011739974λ^{-6}+2.07881157\text{×}10^{-05}λ^{-8}$$Conditions & Spec sheet
n_is_absolute: false
wavelength_is_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
- type: "Schott formula"
coefficients: 4.87e-06 2.39e-08 -5.51e-11 1.91e-06 1.48e-09 0.253
nd: 1.805190
Vd: 25.471232
glass_code: 805255
density: 5.19 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 7.9e-06 K-1
- temperature_range: 20 300 °C
coefficient: 9.1e-06 K-1
dPgF: 0.0074
climatic_resistance: 1.0
References
CDGM Zemax catalog 2022-06 (obtained from http://www.cdgmgd.com)
See also CDGM optical glass data sheets