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Optical constants of HIKARI - LaSF (Lanthanum dense flint)
J-LASFH21

Wavelength: µm
 (0.360 – 2.400)  
 

Derived optical constants

n   k   logX   logY   eV

Dispersion formula

$$n^2=3.67012303-0.0139442893λ^{2}-0.000136361252λ^{4}+0.0484434485λ^{-2}+0.000950687214λ^{-4}+0.000181807808λ^{-6}-1.62618274\text{×}10^{-05}λ^{-8}+1.33939862\text{×}10^{-06}λ^{-10}$$

Conditions & Spec sheet

n_absolute: false
wavelength_vacuum: false
temperature: 23.0 °C
thermal_dispersion:
  - type: "Schott formula"
    coefficients: 6.76193e-07 6.83583e-09 2.24584e-12 9.81173e-07 1.29551e-09 0.249631
nd: 1.953750
Vd: 32.334656
density: 5.05 g/cm3
thermal_expansion:
  - temperature_range: -30 70 °C
    coefficient: 7e-06 K-1
dPgF: 0.0004
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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