Optical constants of CDGM - K (Crown)
H-K1
Wavelength:
µm
(0.290–2.400)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{0.841282669λ^2}{λ^2-103.641667}+\frac{1.01521166λ^2}{λ^2-0.00623224915}+\frac{0.204021337λ^2}{λ^2-0.022057042}$$Conditions & Spec sheet
n_is_absolute: false
wavelength_is_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
- type: "Schott formula"
coefficients: -4.14e-06 1.96e-08 -3.87e-11 5.49e-07 -2.63e-10 0.161
nd: 1.499670
Vd: 62.071979
glass_code: 500621
density: 2.47 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 8.7e-06 K-1
- temperature_range: 20 300 °C
coefficient: 1.04e-05 K-1
dPgF: 0.0006
climatic_resistance: 3.0
References
CDGM Zemax catalog 2022-06 (obtained from http://www.cdgmgd.com)
See also CDGM optical glass data sheets