Optical constants of SUMITA - SFLD
K-SFLD14
Wavelength:
µm
(0.370 – 2.000)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2=2.9793916-0.011878549λ^{2}+0.03964328λ^{-2}+0.0014928665λ^{-4}+1.9358213\text{×}10^{-05}λ^{-6}+1.2712921\text{×}10^{-05}λ^{-8}$$Conditions & Spec sheet
n_absolute: false
wavelength_vacuum: false
temperature: 20.0 ℃
thermal_dispersion:
- type: "Schott formula"
coefficients: -4.13e-06 1.55e-08 -2.99e-10 9.65e-07 1.53e-09 0.29
nd: 1.76182
Vd: 26.5
glass_code: 762265
density: 3.15 g/cm3
thermal_expansion:
- temperature_range: -30 70 ℃
coefficient: 8.5e-06 K-1
- temperature_range: 20 300 ℃
coefficient: 1.02e-05 K-1
dPgF: 0.0144
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