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Optical constants of HIKARI - LaSF (Lanthanum dense flint)
LASF01

Wavelength: µm
 (0.340 – 0.7)  
 

Derived optical constants

n   k   logX   logY   eV

Dispersion formula

$$n^2=3.106256-0.0130242λ^{2}+0.03000569λ^{-2}-0.0002794596λ^{-4}+0.0001479538λ^{-6}-6.924513\text{×}10^{-06}λ^{-8}$$

Conditions & Spec sheet

n_absolute: false
wavelength_vacuum: false
temperature: 20.0 °C
nd: 1.785900
Vd: 44.174079
glass_code: 786442
glass_status: preferred
density: 4.27 g/cm3
thermal_expansion:
  - temperature_range: -30 70 °C
    coefficient: 7.4e-06 K-1
dPgF: -0.007

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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