Optical constants of BAK1
(0.32 – 2.4)
Derived optical constants
n k logX logY eV
Conditions & Spec sheet
n_absolute: false wavelength_vacuum: false temperature: 25.0 °C thermal_dispersion: - type: "Schott formula" coefficients: 3.44e-06 1.26e-08 -4.45e-11 5.04e-07 6.25e-10 0.192 nd: 1.572501 Vd: 57.742980 glass_code: 573578 glass_status: special density: 3.02 g/cm3 thermal_expansion: - temperature_range: -30 70 °C coefficient: 6.6e-06 K-1 - temperature_range: 20 300 °C coefficient: 8e-06 K-1 dPgF: -0.0024 climatic_resistance: 2.0 acid_resistance: 2.0 phosphate_resistance: 1.0
OHARA Zemax catalog 2017-11-30 (obtained from http://www.ohara-inc.co.jp)
See also OHARA glass data sheets
Ohara GroupOhara Group is an international group of companies with headquarters in Japan and subsidiaries in Japan (Ohara, Inc.), United States (Ohara Corporation), and Germany (Ohara, GmbH). Ohara manufactures optical and electronic products and also offers measurement services, in particular measurement of refractive indices of solids and liquids.
BAK1 optical glassBAK1 is a very popular optical glass. Most glass makers produce this or very similar glass.
BAK1 or similar glasses produced by different makers