Optical constants of OHARA - BSM (Borosilicate, medium-index)
S-BSM81
Wavelength:
µm
(0.29–2.4)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{0.996356844λ^2}{λ^2-0.0144821587}+\frac{0.651392837λ^2}{λ^2-0.00154826389}+\frac{1.22432622λ^2}{λ^2-89.9818604}$$Conditions & Spec sheet
n_is_absolute: false wavelength_is_vacuum: false temperature: 25.0 °C thermal_dispersion: - type: "Schott formula" coefficients: 2.81e-06 1.37e-08 -4.03e-11 3.96e-07 7.56e-10 0.182 nd: 1.639999 Vd: 60.078127 glass_code: 640601 density: 3.06 g/cm3 thermal_expansion: - temperature_range: -30 70 °C coefficient: 5.8e-06 K-1 - temperature_range: 20 300 °C coefficient: 7.2e-06 K-1 dPgF: -0.0073 climatic_resistance: 3.0 acid_resistance: 53.0 phosphate_resistance: 4.0
Comments
Recommended
References
OHARA Zemax catalog 2017-11-30 (obtained from http://www.ohara-inc.co.jp)
See also OHARA glass data sheets