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Optical constants of HIKARI - LaSF (Lanthanum dense flint)
J-LASF015

Wavelength: µm
 (0.310 – 2.400)  
 

Derived optical constants

n   k   logX   logY   eV

Dispersion formula

$$n^2=3.17452404-0.0132156517λ^{2}-0.000165919934λ^{4}+0.0276472367λ^{-2}+0.000483338934λ^{-4}+1.20380702\text{×}10^{-05}λ^{-6}+6.02649728\text{×}10^{-07}λ^{-8}$$

Conditions & Spec sheet

n_absolute: false
wavelength_vacuum: false
temperature: 23.0 °C
thermal_dispersion:
  - type: "Schott formula"
    coefficients: 2.0255e-06 9.8941e-09 -1.9071e-12 6.6916e-07 6.0558e-10 0.18663
nd: 1.804000
Vd: 46.597670
density: 4.57 g/cm3
thermal_expansion:
  - temperature_range: -30 70 °C
    coefficient: 6e-06 K-1
dPgF: -0.0087
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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