Optical constants of SUMITA - CD
K-CD45(M)
Wavelength:
µm
(0.340–2.000)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2=2.7618542-0.011387611λ^{2}+0.02681912λ^{-2}+0.0011728044λ^{-4}-3.975188\text{×}10^{-05}λ^{-6}+8.2439775\text{×}10^{-06}λ^{-8}$$Conditions & Spec sheet
n_is_absolute: false
wavelength_is_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
- type: "Schott formula"
coefficients: -4.77e-06 1.49e-08 -1.38e-10 7.8e-07 7.44e-10 0.271
nd: 1.68673
Vd: 34.1
glass_code: 693337
density: 3.13 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 9.1e-06 K-1
- temperature_range: 20 300 °C
coefficient: 1.21e-05 K-1
dPgF: 0.0064
climatic_resistance: 1.0
acid_resistance: 1.0
References
SUMITA Zemax catalog 2017-02-02 (obtained from http://www.sumita-opt.co.jp)
See also SUMITA optical glass data book