Optical constants of CDGM - K (Crown)
H-K6
Wavelength:
µm
(0.290–2.400)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2=2.25024516-0.00758714819λ^{2}+0.0126303778λ^{-2}-0.000229001819λ^{-4}+5.80225939\text{×}10^{-05}λ^{-6}-2.84094604\text{×}10^{-06}λ^{-8}$$Conditions & Spec sheet
n_is_absolute: false
wavelength_is_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
- type: "Schott formula"
coefficients: -2.84e-06 1.68e-08 -6.96e-11 4.72e-07 -6.38e-11 0.217
nd: 1.511125
Vd: 60.478905
glass_code: 511605
density: 2.53 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 8.5e-06 K-1
- temperature_range: 20 300 °C
coefficient: 9.9e-06 K-1
climatic_resistance: 2.0
References
CDGM Zemax catalog 2022-06 (obtained from http://www.cdgmgd.com)
See also CDGM optical glass data sheets