Optical constants of OHARA - LAH (Lanthanum, high-index)
L-LAH86
Wavelength:
µm
(0.360–2.400)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{2.11102709λ^2}{λ^2-0.0120714135}+\frac{0.370368094λ^2}{λ^2-0.0532464416}+\frac{1.62687484λ^2}{λ^2-109.166396}$$Conditions & Spec sheet
n_is_absolute: false wavelength_is_vacuum: false temperature: 25.0 °C thermal_dispersion: - type: "Schott formula" coefficients: 2.69e-06 1.07e-08 -9.48e-12 8.91e-07 1.11e-09 0.274 nd: 1.902699 Vd: 31.005320 density: 4.9 g/cm3 thermal_expansion: - temperature_range: -30 70 °C coefficient: 6.1e-06 K-1 dPgF: 0.003 climatic_resistance: 3.0 acid_resistance: 4.2 phosphate_resistance: 2.0
Comments
Low Softening Temperature
References
OHARA Zemax catalog 2017-11-30 (obtained from http://www.ohara-inc.co.jp)
See also OHARA glass data sheets