Optical constants of OHARA - PHL (Phosphate, low-index)
L-PHL2
Wavelength:
µm
(0.3–2.4)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{1.08137176λ^2}{λ^2-0.00594210177}+\frac{0.31325766λ^2}{λ^2-0.0198011567}+\frac{0.879192863λ^2}{λ^2-109.893817}$$Conditions & Spec sheet
n_absolute: false wavelength_vacuum: false temperature: 25.0 ℃ thermal_dispersion: - type: "Schott formula" coefficients: -4.53e-06 8.19e-09 -3.49e-11 4.89e-07 4.76e-10 0.221 nd: 1.558800 Vd: 62.558541 glass_code: 559625 glass_status: special density: 3.03 g/cm3 thermal_expansion: - temperature_range: -30 70 ℃ coefficient: 9.9e-06 K-1 - temperature_range: 20 300 ℃ coefficient: 1.3e-05 K-1 dPgF: 0.0027 climatic_resistance: 3.0 acid_resistance: 51.1 phosphate_resistance: 4.1
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