Optical constants of SUMITA - VC
K-VC82(M)
Wavelength:
µm
(0.320–2.000)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2=2.9914895-0.01436707λ^{2}+0.024650584λ^{-2}+0.00071568019λ^{-4}-2.7938999\text{×}10^{-05}λ^{-6}+3.2293973\text{×}10^{-06}λ^{-8}$$Conditions & Spec sheet
n_is_absolute: false
wavelength_is_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
- type: "Schott formula"
coefficients: 5.27e-06 1.73e-08 -7.19e-11 6.68e-07 9.93e-10 0.203
nd: 1.75028
Vd: 45.4
glass_code: 756456
density: 4.25 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 5.9e-06 K-1
- temperature_range: 20 300 °C
coefficient: 8e-06 K-1
dPgF: -0.0098
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