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Optical constants of HIKARI - BaLF (Barium light flint)
J-BALF4

Wavelength: µm
 (0.320 – 2.400)  
 

Derived optical constants

n   k   logX   logY   eV

Dispersion formula

$$n^2=2.45156936-0.00835914203λ^{2}-8.88499407\text{×}10^{-05}λ^{4}+0.0153016408λ^{-2}+0.00022451288λ^{-4}+5.89498036\text{×}10^{-06}λ^{-6}+2.59209632\text{×}10^{-07}λ^{-8}$$

Conditions & Spec sheet

n_absolute: false
λ_vacuum: false
temperature: 23.0 °C
thermal_dispersion:
  - type: "Schott formula"
    coefficients: 3.191e-07 1.2703e-08 -2.0786e-13 6.7769e-07 7.3747e-10 0.17881
n_d: 1.579570
V_d: 53.742830
density: 3.13 g/cm3
thermal_expansion:
  - temperature_range: -30 70 °C
    coefficient: 8e-06 K-1
ΔP_gF: -0.0023
phosphate_resistance: 3.0

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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