Optical constants of OHARA - BSM (Borosilicate, medium-index)
S-BSM2
Wavelength:
µm
(0.31–2.4)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{0.867168676λ^2}{λ^2-0.00369311003}+\frac{0.672848343λ^2}{λ^2-0.0181652804}+\frac{1.18456107λ^2}{λ^2-132.376147}$$Conditions & Spec sheet
n_is_absolute: false wavelength_is_vacuum: false temperature: 25.0 °C thermal_dispersion: - type: "Schott formula" coefficients: 3.43e-06 1.37e-08 -3.45e-11 5.05e-07 5.49e-10 0.203 nd: 1.607379 Vd: 56.816076 glass_code: 607568 density: 3.53 g/cm3 thermal_expansion: - temperature_range: -30 70 °C coefficient: 6.5e-06 K-1 - temperature_range: 20 300 °C coefficient: 7.4e-06 K-1 dPgF: -0.0013 climatic_resistance: 2.0 acid_resistance: 5.2 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