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