Optical constants of SUMITA - CD
K-CD45
Wavelength:
µm
(0.340–2.000)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2=2.780768-0.011432782λ^{2}+0.02823867λ^{-2}+0.0009260712λ^{-4}+5.9615098\text{×}10^{-06}λ^{-6}+5.5996227\text{×}10^{-06}λ^{-8}$$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: 1.69320
Vd: 33.7
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: 0.0055
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