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Optical constants of HIKARI - LaSF (Lanthanum dense flint)
J-LASF010

Wavelength: µm
 (0.350 – 2.400)  
 

Derived optical constants

n   k   logX   logY   eV

Dispersion formula

$$n^2=3.25964047-0.0145636865λ^{2}-0.000171298494λ^{4}+0.0351194196λ^{-2}+0.000630621917λ^{-4}+9.80352299\text{×}10^{-05}λ^{-6}-8.0418207\text{×}10^{-06}λ^{-8}+6.28587289\text{×}10^{-07}λ^{-10}$$

Conditions & Spec sheet

n_absolute: false
wavelength_vacuum: false
temperature: 23.0 °C
thermal_dispersion:
  - type: "Schott formula"
    coefficients: 5.3827e-06 1.703e-08 -1.6389e-12 8.1439e-07 9.5861e-10 0.23595
nd: 1.834000
Vd: 37.183793
density: 4.28 g/cm3
thermal_expansion:
  - temperature_range: -30 70 °C
    coefficient: 5.4e-06 K-1
dPgF: -0.0042
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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