Optical constants of SUMITA - PSF
K-PSFn2(M)
Wavelength:
µm
(0.380–2.000)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2=3.7527514-0.013079452λ^{2}+0.07043447λ^{-2}+0.0041015753λ^{-4}-0.00012706916λ^{-6}+4.6413732\text{×}10^{-05}λ^{-8}$$Conditions & Spec sheet
n_is_absolute: false
wavelength_is_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
- type: "Schott formula"
coefficients: 8.11e-06 2.15e-08 -1.06e-10 2.16e-06 2.01e-09 0.291
nd: 1.99670
Vd: 20.6
density: 5.48 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 7.3e-06 K-1
- temperature_range: 20 300 °C
coefficient: 9.2e-06 K-1
dPgF: 0.0255
climatic_resistance: 1.0
acid_resistance: 1.0
References
SUMITA Zemax catalog 2017-02-02 (obtained from http://www.sumita-opt.co.jp)
See also SUMITA optical glass data book