Optical constants of SUMITA - PSK (Dense phosphate crown)
K-PSK100
Wavelength:
µm
(0.320–2.000)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2=2.4948235-0.0091228463λ^{2}+0.013721276λ^{-2}+0.00023830265λ^{-4}+4.1915859\text{×}10^{-06}λ^{-6}-3.8958137\text{×}10^{-07}λ^{-8}$$Conditions & Spec sheet
n_is_absolute: false
wavelength_is_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
- type: "Schott formula"
coefficients: -8.26e-07 2.08e-08 -1.4e-10 5.32e-07 -2.69e-10 0.175
nd: 1.59170
Vd: 60.7
glass_code: 592607
density: 3.24 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 9.5e-06 K-1
- temperature_range: 20 300 °C
coefficient: 1.14e-05 K-1
dPgF: 0.0028
climatic_resistance: 1.0
acid_resistance: 6.0
References
SUMITA Zemax catalog 2017-02-02 (obtained from http://www.sumita-opt.co.jp)
See also SUMITA optical glass data book