Optical constants of SUMITA - VC
K-VC89
Wavelength:
µm
(0.330–2.000)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2=3.1860388-0.013756822λ^{2}+0.029614017λ^{-2}+0.0012383727λ^{-4}-8.0134175\text{×}10^{-05}λ^{-6}+7.2330635\text{×}10^{-06}λ^{-8}$$Conditions & Spec sheet
n_is_absolute: false
wavelength_is_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
- type: "Schott formula"
coefficients: 5.61e-06 1.72e-08 -1.79e-10 7.49e-07 7.58e-10 0.227
nd: 1.81000
Vd: 41.0
glass_code: 810410
density: 4.75 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 6.4e-06 K-1
- temperature_range: 20 300 °C
coefficient: 8.3e-06 K-1
dPgF: -0.0084
climatic_resistance: 1.0
acid_resistance: 3.0
References
SUMITA Zemax catalog 2017-02-02 (obtained from http://www.sumita-opt.co.jp)
See also SUMITA optical glass data book