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Optical constants of HIKARI - LaK (Lanthanum crown)
P-LAK13S

Wavelength: µm
 (0.280 – 2.400)  
 

Derived optical constants

n   k   logX   logY   eV

Dispersion formula

$$n^2=2.82447476-0.0118060586λ^{2}+0.0196386835λ^{-2}+0.00040080475λ^{-4}-8.64448721\text{×}10^{-06}λ^{-6}+9.02906571\text{×}10^{-07}λ^{-8}-0.00010649054λ^{4}$$

Conditions & Spec sheet

n_is_absolute: false
λ_is_vacuum: false
temperature: 23.0 °C
n_d: 1.697200
V_d: 53.210741
glass_status: preferred
density: 3.73 g/cm3
coefficient_of_thermal_expansion_1: 9.2e-06 K-1
ΔP_gF: -0.0062

Comments

Low Tg glass

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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