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Optical constants of HIKARI - LaSF (Lanthanum dense flint)
J-LASFH23

Wavelength: µm
 (0.360 – 2.400)  
 

Derived optical constants

n   k   logX   logY   eV

Dispersion formula

$$n^2=3.27710657-0.0120480934λ^{2}-0.000105066933λ^{4}+0.0470173769λ^{-2}+0.00095791266λ^{-4}+0.000282409939λ^{-6}-2.89931135\text{×}10^{-05}λ^{-8}+2.51862401\text{×}10^{-06}λ^{-10}$$

Conditions & Spec sheet

n_absolute: false
wavelength_vacuum: false
temperature: 23.0 °C
thermal_dispersion:
  - type: "Schott formula"
    coefficients: -4.0072e-06 5.68857e-09 1.18399e-12 1.0748e-06 1.46694e-09 0.271814
nd: 1.850000
Vd: 27.027002
density: 3.9 g/cm3
thermal_expansion:
  - temperature_range: -30 70 °C
    coefficient: 7.6e-06 K-1
dPgF: 0.0103
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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