Optical constants of CDGM - K (Crown)
D-K59
Wavelength:
µm
(0.302–2.400)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{1.1209538λ^2}{λ^2-0.00657908073}+\frac{0.152690608λ^2}{λ^2-0.0235724778}+\frac{1.07502924λ^2}{λ^2-106.309977}$$Conditions & Spec sheet
n_is_absolute: false
wavelength_is_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
- type: "Schott formula"
coefficients: 5.85e-06 2.25e-08 -1.51e-10 3.09e-07 -8.98e-10 0.268
nd: 1.517600
Vd: 63.499991
glass_code: 518635
density: 2.41 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 6e-06 K-1
- temperature_range: 20 300 °C
coefficient: 8e-06 K-1
dPgF: -0.0025
climatic_resistance: 1.0
Comments
anneal rate:4°C/h
References
CDGM Zemax catalog 2022-06 (obtained from http://www.cdgmgd.com)
See also CDGM optical glass data sheets