Optical constants of CDGM - K (Crown)
H-K9LA
Wavelength:
µm
(0.290–2.400)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{0.684743072λ^2}{λ^2-0.00313539741}+\frac{0.586772376λ^2}{λ^2-0.014810133}+\frac{1.14804248λ^2}{λ^2-116.583792}$$Conditions & Spec sheet
n_is_absolute: false
wavelength_is_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
- type: "Schott formula"
coefficients: 9.03e-07 1.85e-08 -2.98e-11 4.55e-07 1e-10 0.182
nd: 1.516800
Vd: 64.198695
glass_code: 517642
glass_status: standard
density: 2.51 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 7.2e-06 K-1
- temperature_range: 20 300 °C
coefficient: 8.8e-06 K-1
dPgF: -0.0013
climatic_resistance: 1.0
References
CDGM Zemax catalog 2022-06 (obtained from http://www.cdgmgd.com)
See also CDGM optical glass data sheets