Optical constants of OHARA - NPH (Niobophosphate, high-index)
S-NPH5
Wavelength:
µm
(0.360–2.400)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{1.89108996λ^2}{λ^2-0.0141164499}+\frac{0.395220126λ^2}{λ^2-0.0662834445}+\frac{2.20492127λ^2}{λ^2-148.6807}$$Conditions & Spec sheet
n_is_absolute: false wavelength_is_vacuum: false temperature: 25.0 °C thermal_dispersion: - type: "Schott formula" coefficients: -3.54e-06 1.02e-08 -1.62e-11 9.63e-07 1.37e-09 0.312 nd: 1.858955 Vd: 22.728736 density: 3.71 g/cm3 thermal_expansion: - temperature_range: -30 70 °C coefficient: 7.6e-06 K-1 dPgF: 0.0237 climatic_resistance: 1.0 acid_resistance: 1.0 phosphate_resistance: 1.0
Comments
Recommended - High Index
References
OHARA Zemax catalog 2017-11-30 (obtained from http://www.ohara-inc.co.jp)
See also OHARA glass data sheets