Optical constants of OHARA - FPM (Fluorophosphate, medium-index)
S-FPM2
Wavelength:
µm
(0.3 – 2.4)
Derived optical constants
n
k
logX
logY
eV
Dispersion formula
$$n^2-1=\frac{0.761242785λ^2}{λ^2-0.00321174095}+\frac{0.747033375λ^2}{λ^2-0.0140234423}+\frac{0.938928947λ^2}{λ^2-139.52353}$$Conditions & Spec sheet
n_is_absolute: false λ_is_vacuum: false temperature: 25.0 °C coefficients_of_thermal_dispersion: -1.65e-05 2.94e-09 -1.11e-12 4.25e-07 3.23e-10 0.176 n_d: 1.595220 V_d: 67.735723 density: 4.17 g/cm3 coefficient_of_thermal_expansion_1: 1.17e-05 K-1 ΔP_gF: 0.0123 climatic_resistance: 2.0 acid_resistance: 51.3 phosphate_resistance: 4.1
Comments
Recommended - The unique relative partial dispersion
References
OHARA Zemax catalog 2017-11-30 (obtained from http://www.ohara-inc.co.jp)
See also OHARA glass data sheets