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Optical constants of HIKARI - LaSF (Lanthanum dense flint)
J-LASF09

Wavelength: µm
 (0.320 – 2.400)  
 

Derived optical constants

n   k   logX   logY   eV

Dispersion formula

$$n^2=3.21640776-0.0137992658λ^{2}-0.000161434942λ^{4}+0.0281939284λ^{-2}+0.000509661263λ^{-4}+1.00848603\text{×}10^{-05}λ^{-6}+6.06649264\text{×}10^{-07}λ^{-8}$$

Conditions & Spec sheet

n_absolute: false
wavelength_vacuum: false
temperature: 23.0 °C
thermal_dispersion:
  - type: "Schott formula"
    coefficients: 2.1218e-06 1.1539e-08 -1.0357e-12 7.1281e-07 8.2085e-10 0.15462
nd: 1.816000
Vd: 46.589656
glass_status: preferred
density: 4.98 g/cm3
thermal_expansion:
  - temperature_range: -30 70 °C
    coefficient: 5.8e-06 K-1
dPgF: -0.0095
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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