Optical constants of SUMITA - VC
K-VC79
Wavelength:
µm
(0.270–2.000)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2=2.5520489-0.011234947λ^{2}+0.014455084λ^{-2}+0.00046725318λ^{-4}-3.6714004\text{×}10^{-05}λ^{-6}+2.2810504\text{×}10^{-06}λ^{-8}$$Conditions & Spec sheet
n_is_absolute: false
wavelength_is_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
- type: "Schott formula"
coefficients: 5.06e-07 1.46e-08 -2.13e-11 4.85e-07 4.45e-11 0.187
nd: 1.61035
Vd: 57.9
glass_code: 610579
density: 3.09 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 7.2e-06 K-1
- temperature_range: 20 300 °C
coefficient: 9.3e-06 K-1
dPgF: -0.0058
climatic_resistance: 2.0
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