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Optical constants of HIKARI - LaSK (Lanthanum dense crown)
E-LASKH2

Wavelength: µm
 (0.300 – 2.400)  
 

Derived optical constants

n   k   logX   logY   eV

Dispersion formula

$$n^2=3.01740929-0.0150192115λ^{2}+0.0220799937λ^{-2}+0.000476675587λ^{-4}-9.36464002\text{×}10^{-06}λ^{-6}+9.63541852\text{×}10^{-07}λ^{-8}$$

Conditions & Spec sheet

n_absolute: false
λ_vacuum: false
temperature: 23.0 °C
n_d: 1.754999
V_d: 52.314919
glass_code: 755523
glass_status: preferred
density: 4.29 g/cm3
thermal_expansion:
  - temperature_range: -30 70 °C
    coefficient: 7e-06 K-1
ΔP_gF: -0.0091

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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