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Optical constants of HIKARI - BaSF (Barium dense flint)
J-BASF7

Wavelength: µm
 (0.350 – 2.400)  
 

Derived optical constants

n   k   logX   logY   eV

Dispersion formula

$$n^2=2.82115391-0.0100514408λ^{2}-9.24350756\text{×}10^{-05}λ^{4}+0.0249821665λ^{-2}+0.000523468025λ^{-4}+3.70259835\text{×}10^{-05}λ^{-6}-2.14786963\text{×}10^{-06}λ^{-8}+2.97698375\text{×}10^{-07}λ^{-10}$$

Conditions & Spec sheet

n_absolute: false
wavelength_vacuum: false
temperature: 23.0 °C
thermal_dispersion:
  - type: "Schott formula"
    coefficients: 4.0177e-06 1.187e-08 -2.3814e-12 7.4284e-07 9.0374e-10 0.23938
nd: 1.701540
Vd: 41.018469
density: 3.63 g/cm3
thermal_expansion:
  - temperature_range: -30 70 °C
    coefficient: 6.7e-06 K-1
dPgF: 0.0003
phosphate_resistance: 1.0

References

NIKON Zemax catalog 2017-11 (obtained from http://www.nikon.com)
See also HIKARI glass data sheets

Data

[Expressions for n]   [CSV - comma separated]   [TXT - tab separated]   [Full database record]

INFO

Hikari Glass Co., Ltd.

Hikari Glass Co., Ltd. is a Japanese glass maker, a subsidiary of Nikon Corp.

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