Optical constants of OHARA - BSM (Borosilicate, medium-index)
S-BSM4
Wavelength:
µm
(0.31–2.4)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{0.96244308λ^2}{λ^2-0.00468062141}+\frac{0.595939234λ^2}{λ^2-0.0178772082}+\frac{1.10558352λ^2}{λ^2-115.896432}$$Conditions & Spec sheet
n_is_absolute: false wavelength_is_vacuum: false temperature: 25.0 °C thermal_dispersion: - type: "Schott formula" coefficients: 7.56e-07 1.32e-08 -4.04e-11 3.16e-07 5.36e-10 0.263 nd: 1.612716 Vd: 58.716945 glass_code: 613587 density: 3.57 g/cm3 thermal_expansion: - temperature_range: -30 70 °C coefficient: 6.7e-06 K-1 - temperature_range: 20 300 °C coefficient: 7.6e-06 K-1 dPgF: -0.0016 climatic_resistance: 1.0 acid_resistance: 51.2 phosphate_resistance: 2.2
Comments
Recommended
References
OHARA Zemax catalog 2017-11-30 (obtained from http://www.ohara-inc.co.jp)
See also OHARA glass data sheets