Optical constants of OHARA - BSM (Borosilicate, medium-index)
S-BSM28
Wavelength:
µm
(0.34–2.4)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{1.43822841λ^2}{λ^2-0.0085977975}+\frac{0.128100017λ^2}{λ^2-0.0408617854}+\frac{1.3435553λ^2}{λ^2-143.70989}$$Conditions & Spec sheet
n_is_absolute: false wavelength_is_vacuum: false temperature: 25.0 °C thermal_dispersion: - type: "Schott formula" coefficients: -2.01e-06 1.24e-08 -3.72e-11 4.79e-07 4.64e-10 0.264 nd: 1.617722 Vd: 49.815052 glass_code: 618498 density: 3.23 g/cm3 thermal_expansion: - temperature_range: -30 70 °C coefficient: 8.4e-06 K-1 - temperature_range: 20 300 °C coefficient: 9.6e-06 K-1 dPgF: -0.0006 climatic_resistance: 3.0 acid_resistance: 51.2 phosphate_resistance: 3.0
Comments
Recommended
References
OHARA Zemax catalog 2017-11-30 (obtained from http://www.ohara-inc.co.jp)
See also OHARA glass data sheets