Optical constants of SUMITA - SK (Dense crown)
K-SK16RH
Wavelength:
µm
(0.280–2.000)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2=2.5853303-0.011740187λ^{2}+0.014496524λ^{-2}+0.0003287161λ^{-4}-1.5804639\text{×}10^{-05}λ^{-6}+1.1016183\text{×}10^{-06}λ^{-8}$$Conditions & Spec sheet
n_is_absolute: false
wavelength_is_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
- type: "Schott formula"
coefficients: 3.39e-07 1.49e-08 -2.68e-10 3.99e-07 1.11e-09 0.174
nd: 1.62041
Vd: 60.3
glass_code: 620603
density: 3.5 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 6e-06 K-1
- temperature_range: 20 300 °C
coefficient: 7.2e-06 K-1
dPgF: -0.0029
climatic_resistance: 2.0
acid_resistance: 5.0
References
SUMITA Zemax catalog 2017-02-02 (obtained from http://www.sumita-opt.co.jp)
See also SUMITA optical glass data book