Optical constants of SUMITA - VC
K-VC80(M)
Wavelength:
µm
(0.280–2.000)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2=2.800208-0.012536465λ^{2}+0.019904622λ^{-2}+0.00012816526λ^{-4}+4.6545827\text{×}10^{-05}λ^{-6}-2.8784776\text{×}10^{-06}λ^{-8}$$Conditions & Spec sheet
n_is_absolute: false
wavelength_is_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
- type: "Schott formula"
coefficients: 1.72e-06 1.69e-08 -1.41e-10 6.62e-07 9.46e-10 0.149
nd: 1.68983
Vd: 52.9
glass_code: 694531
density: 3.81 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 6.4e-06 K-1
- temperature_range: 20 300 °C
coefficient: 9.4e-06 K-1
dPgF: -0.0062
climatic_resistance: 1.0
acid_resistance: 4.0
References
SUMITA Zemax catalog 2017-02-02 (obtained from http://www.sumita-opt.co.jp)
See also SUMITA optical glass data book