Optical constants of CDGM - K (Crown)
H-K3
Wavelength:
µm
(0.300–2.400)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{0.296004558λ^2}{λ^2-0.0185989847}+\frac{0.940420083λ^2}{λ^2-0.00513632873}+\frac{1.0056654λ^2}{λ^2-97.555431}$$Conditions & Spec sheet
n_is_absolute: false
wavelength_is_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
- type: "Schott formula"
coefficients: 2.53e-06 1.95e-08 -5.32e-11 4.02e-07 6.25e-10 0.12
nd: 1.504630
Vd: 64.720718
glass_code: 505647
density: 2.4 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 5.8e-06 K-1
- temperature_range: 20 300 °C
coefficient: 7e-06 K-1
dPgF: -0.0025
climatic_resistance: 1.0
References
CDGM Zemax catalog 2022-06 (obtained from http://www.cdgmgd.com)
See also CDGM optical glass data sheets