Optical constants of OHARA - BSM (Borosilicate, medium-index)
S-BSM22
Wavelength:
µm
(0.34–2.4)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{1.44305741λ^2}{λ^2-0.0081920891}+\frac{0.140786358λ^2}{λ^2-0.0356911455}+\frac{1.26093951λ^2}{λ^2-131.959337}$$Conditions & Spec sheet
n_is_absolute: false wavelength_is_vacuum: false temperature: 25.0 °C thermal_dispersion: - type: "Schott formula" coefficients: 2.82e-06 1.07e-08 -3.24e-11 4.7e-07 7.23e-10 0.235 nd: 1.622296 Vd: 53.169067 glass_code: 622532 density: 3.24 g/cm3 thermal_expansion: - temperature_range: -30 70 °C coefficient: 6.6e-06 K-1 - temperature_range: 20 300 °C coefficient: 7.6e-06 K-1 dPgF: -0.0012 climatic_resistance: 2.0 acid_resistance: 3.2 phosphate_resistance: 1.0
Comments
Recommended
References
OHARA Zemax catalog 2017-11-30 (obtained from http://www.ohara-inc.co.jp)
See also OHARA glass data sheets