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Optical constants of HIKARI - LaF (Lanthanum flint)
J-LAF010

Wavelength: µm
 (0.300 – 2.400)  
 

Derived optical constants

n   k   logX   logY   eV

Dispersion formula

$$n^2=2.97218511-0.0132235298λ^{2}-0.000174821942λ^{4}+0.0233639677λ^{-2}+0.000384261692λ^{-4}+9.20777694\text{×}10^{-06}λ^{-6}+3.19655312\text{×}10^{-07}λ^{-8}$$

Conditions & Spec sheet

n_is_absolute: false
λ_is_vacuum: false
temperature: 23.0 °C
coefficients_of_thermal_dispersion: 9.3637e-06 1.3683e-08 -1.8889e-12 6.9113e-07 7.4554e-10 0.18889
n_d: 1.743200
V_d: 49.257188
density: 4.15 g/cm3
coefficient_of_thermal_expansion_1: 4.9e-06 K-1
ΔP_gF: -0.0092
phosphate_resistance: 4.0

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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