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Optical constants of HIKARI - LaSF (Lanthanum dense flint)
E-LASF08

Wavelength: µm
 (0.330 – 2.400)  
 

Derived optical constants

n   k   logX   logY   eV

Dispersion formula

$$n^2=3.44097798-0.0140195736λ^{2}+0.0351597803λ^{-2}+0.000893152796λ^{-4}+2.96132309\text{×}10^{-06}λ^{-6}+1.83226713\text{×}10^{-06}λ^{-8}$$

Conditions & Spec sheet

n_absolute: false
wavelength_vacuum: false
temperature: 23.0 °C
nd: 1.882997
Vd: 40.764336
glass_code: 883408
glass_status: preferred
density: 5.48 g/cm3
thermal_expansion:
  - temperature_range: -30 70 °C
    coefficient: 7.8e-06 K-1
dPgF: -0.0092

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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