Optical constants of CDGM - K (Crown)
H-K50
Wavelength:
µm
(0.302 – 2.400)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{1.19524701λ^2}{λ^2-0.00764077104}+\frac{0.0895076933λ^2}{λ^2-0.0318085706}+\frac{0.920217443λ^2}{λ^2-109.312054}$$Conditions & Spec sheet
n_absolute: false
wavelength_vacuum: false
temperature: 20.0 ℃
thermal_dispersion:
- type: "Schott formula"
coefficients: -1.18e-06 1.18e-08 -7.33e-11 5.47e-07 1.51e-09 0.174
nd: 1.522490
Vd: 59.480754
glass_code: 522595
density: 2.52 g/cm3
thermal_expansion:
- temperature_range: -30 70 ℃
coefficient: 7.9e-06 K-1
- temperature_range: 20 300 ℃
coefficient: 9.6e-06 K-1
dPgF: -0.0003
climatic_resistance: 1.0
References
CDGM Zemax catalog 2022-06 (obtained from http://www.cdgmgd.com)
See also CDGM optical glass data sheets