Optical constants of OHARA - FPL (Fluorophosphate, low-index)
S-FPL52
Wavelength:
µm
(0.29–2.4)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{1.06785857λ^2}{λ^2-0.00699227302}+\frac{0.0335857718λ^2}{λ^2+0.0207608925}+\frac{1.10219763λ^2}{λ^2-226.496541}$$Conditions & Spec sheet
n_is_absolute: false wavelength_is_vacuum: false temperature: 25.0 °C nd: 1.455999 Vd: 90.288026 glass_code: 456903 glass_status: preferred density: 3.53 g/cm3 thermal_expansion: - temperature_range: -30 70 °C coefficient: 1.33e-05 K-1 - temperature_range: 20 300 °C coefficient: 1.58e-05 K-1 dPgF: 0.0386 acid_resistance: 52.0 phosphate_resistance: 4.0
Comments
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