Optical constants of SCHOTT - BaK (Barium crown)
N-BAK1
Wavelength:
µm
(0.3–2.5)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{1.12365662λ^2}{λ^2-0.00644742752}+\frac{0.309276848λ^2}{λ^2-0.0222284402}+\frac{0.881511957λ^2}{λ^2-107.297751}$$Conditions & Spec sheet
n_is_absolute: false wavelength_is_vacuum: false temperature: 20.0 °C thermal_dispersion: - type: "Schott formula" coefficients: 1.86e-07 1.29e-08 -1.87e-11 5.25e-07 5.46e-10 0.182 nd: 1.5725 Vd: 57.55 glass_code: 573576.319 glass_status: standard density: 3.19 g/cm3 thermal_expansion: - temperature_range: -30 70 °C coefficient: 7.6e-06 K-1 - temperature_range: 20 300 °C coefficient: 8.6e-06 K-1 dPgF: 0.0002 climatic_resistance: 2.0 stain_resistance: 1.0 acid_resistance: 3.3 alkali_resistance: 1.2 phosphate_resistance: 2.0
Comments
References
SCHOTT Zemax catalog 2017-01-20b (obtained from http://www.schott.com)
See also SCHOTT glass data sheets
Data
INFO
BAK1 optical glass
BAK1 is a very popular optical glass. Most glass makers produce this or very similar glass.BAK1 or similar glasses produced by different makers
Maker | Glass |
---|---|
Schott | N-BAK1 |
Hikari | E-BAK1 |
Ohara | S-BAL11 |
CDGM | H-BAK8 |