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Optical constants of HIKARI - LaSF (Lanthanum dense flint)
E-LASFH9

Wavelength: µm
 (0.4 – 0.7)  
 

Derived optical constants

n   k   logX   logY   eV

Dispersion formula

$$n^2=3.49989132-0.014925507λ^{2}+0.0384731987λ^{-2}+0.00184372906λ^{-4}-9.49882953\text{×}10^{-05}λ^{-6}+1.04373643\text{×}10^{-05}λ^{-8}$$

Conditions & Spec sheet

n_absolute: false
wavelength_vacuum: false
temperature: 23.0 °C
nd: 1.902650
Vd: 35.699754
glass_status: preferred
density: 5.52 g/cm3
thermal_expansion:
  - temperature_range: -30 70 °C
    coefficient: 7.5e-06 K-1
dPgF: -0.0046

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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