Optical constants of CDGM - ZF (Dense flint)
D-ZF10-25
Wavelength:
µm
(0.360–2.400)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{1.39531577λ^2}{λ^2-134.661574}+\frac{0.180389834λ^2}{λ^2-0.0604305431}+\frac{1.57395389λ^2}{λ^2-0.0122657049}$$Conditions & Spec sheet
n_is_absolute: false
wavelength_is_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
- type: "Schott formula"
coefficients: -5.76e-06 6.62e-09 -3.57e-11 9.8e-07 1.12e-09 0.261
nd: 1.687310
Vd: 31.183804
glass_code: 687312
density: 2.84 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 1e-05 K-1
- temperature_range: 20 300 °C
coefficient: 1.29e-05 K-1
dPgF: 0.0067
climatic_resistance: 1.0
Comments
anneal rate:25°C/h
References
CDGM Zemax catalog 2022-06 (obtained from http://www.cdgmgd.com)
See also CDGM optical glass data sheets