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Optical constants of HIKARI - LaF (Lanthanum flint)
J-LAF01

Wavelength: µm
 (0.340 – 2.400)  
 

Derived optical constants

n   k   logX   logY   eV

Dispersion formula

$$n^2=2.82684251-0.0103793494λ^{2}-7.59583803\text{×}10^{-05}λ^{4}+0.021662046λ^{-2}+0.000472548975λ^{-4}-2.58637501\text{×}10^{-06}λ^{-6}+1.43317138\text{×}10^{-06}λ^{-8}$$

Conditions & Spec sheet

n_is_absolute: false
λ_is_vacuum: false
temperature: 23.0 °C
coefficients_of_thermal_dispersion: -2.9983e-07 1.0398e-08 -2.1837e-12 7.6422e-07 7.8937e-10 0.15326
n_d: 1.700000
V_d: 48.103628
density: 3.68 g/cm3
coefficient_of_thermal_expansion_1: 7.3e-06 K-1
ΔP_gF: -0.0033
phosphate_resistance: 3.0

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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