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Optical constants of HIKARI - LaSF (Lanthanum dense flint)
J-LASFH6

Wavelength: µm
 (0.360 – 2.400)  
 

Derived optical constants

n   k   logX   logY   eV

Dispersion formula

$$n^2=3.15462091-0.0134426083λ^{2}+0.0331718297λ^{-2}+0.00271221217λ^{-4}-0.000503803783λ^{-6}+0.000100437086λ^{-8}-9.19121981\text{×}10^{-06}λ^{-10}+3.75808895\text{×}10^{-07}λ^{-12}$$

Conditions & Spec sheet

n_is_absolute: false
λ_is_vacuum: false
temperature: 23.0 °C
coefficients_of_thermal_dispersion: 6.65589e-07 7.77982e-09 1.18319e-12 8.50922e-07 1.20835e-09 0.263888
n_d: 1.806100
V_d: 33.344981
density: 3.77 g/cm3
coefficient_of_thermal_expansion_1: 7.1e-06 K-1
ΔP_gF: 0.002
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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