Optical constants of SUMITA - VC
K-VC185
Wavelength:
µm
(0.320–2.000)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2=3.3380677-0.014969129λ^{2}+0.032739414λ^{-2}+0.0011048947λ^{-4}-3.8597399\text{×}10^{-05}λ^{-6}+4.5931893\text{×}10^{-06}λ^{-8}$$Conditions & Spec sheet
n_is_absolute: false wavelength_is_vacuum: false temperature: 20.0 °C thermal_dispersion: - type: "Schott formula" coefficients: 4.01e-06 1.77e-08 -2.37e-10 7.39e-07 1.02e-09 0.227 nd: 1.85375 Vd: 40.6 glass_code: 854406 density: 5.0 g/cm3 thermal_expansion: - temperature_range: -30 70 °C coefficient: 5.8e-06 K-1 - temperature_range: 20 300 °C coefficient: 7e-06 K-1 dPgF: -0.0089 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