Optical constants of SCHOTT - K (Crown)
N-ZK7
Wavelength:
µm
(0.3–2.5)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{1.07715032λ^2}{λ^2-0.00676601657}+\frac{0.168079109λ^2}{λ^2-0.0230642817}+\frac{0.851889892λ^2}{λ^2-89.0498778}$$Conditions & Spec sheet
n_is_absolute: false wavelength_is_vacuum: false temperature: 20.0 °C thermal_dispersion: - type: "Schott formula" coefficients: 1.15e-05 1.73e-08 -8.06e-11 4.32e-07 7.05e-10 0.179 nd: 1.50847 Vd: 61.19 glass_code: 508612.249 glass_status: standard density: 2.49 g/cm3 thermal_expansion: - temperature_range: -30 70 °C coefficient: 4.5e-06 K-1 - temperature_range: 20 300 °C coefficient: 5.2e-06 K-1 dPgF: -0.0039 climatic_resistance: 1.0 stain_resistance: 0.0 acid_resistance: 2.0 alkali_resistance: 1.2 phosphate_resistance: 2.2
Comments
References
SCHOTT Zemax catalog 2017-01-20b (obtained from http://www.schott.com)
See also SCHOTT glass data sheets