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Optical constants of HIKARI - LaF (Lanthanum flint)
J-LAF09

Wavelength: µm
 (0.340 – 2.400)  
 

Derived optical constants

n   k   logX   logY   eV

Dispersion formula

$$n^2=2.81748246-0.0105788235λ^{2}-0.000100459117λ^{4}+0.0214941409λ^{-2}+0.000433668886λ^{-4}+3.1538635\text{×}10^{-07}λ^{-6}+1.19012861\text{×}10^{-06}λ^{-8}$$

Conditions & Spec sheet

n_absolute: false
wavelength_vacuum: false
temperature: 23.0 °C
thermal_dispersion:
  - type: "Schott formula"
    coefficients: 1.0244e-06 1.1947e-08 -2.4361e-12 4.5669e-07 7.4603e-10 0.28662
nd: 1.697000
Vd: 48.449887
glass_status: preferred
density: 3.74 g/cm3
thermal_expansion:
  - temperature_range: -30 70 °C
    coefficient: 6.9e-06 K-1
dPgF: -0.0043
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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