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Optical constants of HIKARI - LaSF (Lanthanum dense flint)
J-LASFH24HS

Wavelength: µm
 (0.365 – 2.400)  
 

Derived optical constants

n   k   logX   logY   eV

Dispersion formula

$$n^2=3.45215485-0.0140748042λ^{2}+0.0502420375λ^{-2}+0.00357942817λ^{-4}-0.000494644665λ^{-6}+0.000129480898λ^{-8}-1.35467075\text{×}10^{-05}λ^{-10}+6.96875364\text{×}10^{-07}λ^{-12}$$

Conditions & Spec sheet

n_absolute: false
λ_vacuum: false
temperature: 23.0 °C
thermal_dispersion:
  - type: "Schott formula"
    coefficients: -3.8315e-06 9.6446e-09 -1.07e-12 1.0692e-06 1.6653e-09 0.28647
n_d: 1.902000
V_d: 25.263033
density: 4.1 g/cm3
thermal_expansion:
  - temperature_range: -30 70 °C
    coefficient: 7.7e-06 K-1

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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