Optical constants of SUMITA - PSF
K-PSFn215
Wavelength:
µm
(0.4–2.000)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2=4.2994108-0.014091413λ^{2}+0.097855062λ^{-2}+0.0076857652λ^{-4}-0.00046786841λ^{-6}+0.00012218724λ^{-8}$$Conditions & Spec sheet
n_is_absolute: false
wavelength_is_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
- type: "Schott formula"
coefficients: 1.64e-05 4.6e-08 -2.91e-10 3.47e-06 -3e-09 0.301
nd: 2.15400
Vd: 17.2
glass_code: 154172
density: 7.1 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 8.6e-06 K-1
- temperature_range: 20 300 °C
coefficient: 1.01e-05 K-1
dPgF: 0.0498
climatic_resistance: 1.0
acid_resistance: 5.0
References
SUMITA Zemax catalog 2017-02-02 (obtained from http://www.sumita-opt.co.jp)
See also SUMITA optical glass data book