Optical constants of OHARA - BPH (Borophosphate, high-index)
BPH5
Wavelength:
µm
(0.3–2.4)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{1.44845677λ^2}{λ^2-0.0092817361}+\frac{0.22044806λ^2}{λ^2-0.0433001987}+\frac{0.99476362λ^2}{λ^2-77.6475264}$$Conditions & Spec sheet
n_is_absolute: false wavelength_is_vacuum: false temperature: 25.0 °C thermal_dispersion: - type: "Schott formula" coefficients: 9.679e-06 0.0 0.0 0.0 0.0 0.0 nd: 1.654115 Vd: 39.687638 glass_code: 654397 glass_status: preferred density: 3.49 g/cm3 thermal_expansion: - temperature_range: -30 70 °C coefficient: 4.6e-06 K-1 - temperature_range: 20 300 °C coefficient: 5.7e-06 K-1 dPgF: -0.0065 acid_resistance: 52.2 phosphate_resistance: 4.2
References
OHARA Zemax catalog 2017-11-30 (obtained from http://www.ohara-inc.co.jp)
See also OHARA glass data sheets