Optical constants of CDGM - K (Crown)
H-K5
Wavelength:
µm
(0.290–2.400)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2=2.25018356-0.00894066156λ^{2}+0.0114317829λ^{-2}-7.33393278\text{×}10^{-05}λ^{-4}+3.49616695\text{×}10^{-05}λ^{-6}-1.80100775\text{×}10^{-06}λ^{-8}$$Conditions & Spec sheet
n_is_absolute: false
wavelength_is_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
- type: "Schott formula"
coefficients: -2.53e-07 1.48e-08 -9.74e-12 4.45e-07 7.77e-10 0.202
nd: 1.510072
Vd: 63.364525
glass_code: 510634
density: 2.47 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 7.5e-06 K-1
- temperature_range: 20 300 °C
coefficient: 8.9e-06 K-1
dPgF: 0.0012
climatic_resistance: 1.0
References
CDGM Zemax catalog 2022-06 (obtained from http://www.cdgmgd.com)
See also CDGM optical glass data sheets