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Optical constants of HIKARI - LaSF (Lanthanum dense flint)
J-LASFH22

Wavelength: µm
 (0.330 – 2.400)  
 

Derived optical constants

n   k   logX   logY   eV

Dispersion formula

$$n^2=3.32390176-0.0124810607λ^{2}-0.000116698235λ^{4}+0.0316622125λ^{-2}+0.000639837554λ^{-4}+8.855505\text{×}10^{-06}λ^{-6}+1.07749628\text{×}10^{-06}λ^{-8}$$

Conditions & Spec sheet

n_is_absolute: false
λ_is_vacuum: false
temperature: 23.0 °C
coefficients_of_thermal_dispersion: 2.5512e-06 7.9428e-09 2.0617e-12 8.7538e-07 1.5764e-09 0.14748
n_d: 1.848500
V_d: 43.790731
density: 5.08 g/cm3
coefficient_of_thermal_expansion_1: 6.3e-06 K-1
ΔP_gF: -0.0089
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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