Optical constants of CDGM - K (Crown)
H-K8
Wavelength:
µm
(0.302–2.400)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{0.89042231λ^2}{λ^2-109.831873}+\frac{0.220099174λ^2}{λ^2-0.0247288604}+\frac{1.0437922λ^2}{λ^2-0.00657041675}$$Conditions & Spec sheet
n_is_absolute: false
wavelength_is_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
- type: "Schott formula"
coefficients: 8.89e-07 1.59e-08 -3.21e-11 5.87e-07 4.31e-10 0.197
nd: 1.516020
Vd: 56.794825
glass_code: 516568
density: 2.58 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 8.7e-06 K-1
- temperature_range: 20 300 °C
coefficient: 9.7e-06 K-1
dPgF: -0.0024
climatic_resistance: 2.0
References
CDGM Zemax catalog 2022-06 (obtained from http://www.cdgmgd.com)
See also CDGM optical glass data sheets