Optical constants of OHARA - LAH (Lanthanum, high-index)
L-LAH85
Wavelength:
µm
(0.33–2.4)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{1.93889988λ^2}{λ^2-0.00996381644}+\frac{0.39787919λ^2}{λ^2-0.036975114}+\frac{1.49937713λ^2}{λ^2-107.951467}$$Conditions & Spec sheet
n_is_absolute: false wavelength_is_vacuum: false temperature: 25.0 °C thermal_dispersion: - type: "Schott formula" coefficients: 4.03e-06 1.06e-08 -9.93e-12 7.49e-07 7.76e-10 0.222 nd: 1.854000 Vd: 40.393284 glass_status: special density: 5.09 g/cm3 thermal_expansion: - temperature_range: -30 70 °C coefficient: 7e-06 K-1 dPgF: -0.0084 climatic_resistance: 4.0 acid_resistance: 2.2 phosphate_resistance: 1.0
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