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Optical constants of HIKARI - LaSF (Lanthanum dense flint)
J-LASF017

Wavelength: µm
 (0.320 – 2.400)  
 

Other optical constants

n   k   logX   logY   eV

Dispersion formula

$$n^2=3.14264424-0.0144687256λ^{2}-0.000159589924λ^{4}+0.0273342436λ^{-2}+0.00060806842λ^{-4}+1.8005447\text{×}10^{-07}λ^{-6}+1.58176253\text{×}10^{-06}λ^{-8}$$

Data

[Expressions for n]   [CSV - comma separated]   [TXT - tab separated]   [Full database record]

Additional information

n_is_absolute: false
λ_is_vacuum: false
temperature: 23.0 °C
n_d: 1.795000
V_d: 45.309666
density: 4.34 g/cm3
coefficient_of_thermal_expansion_1: 6.4e-06 K-1
ΔP_gF: -0.0085
phosphate_resistance: 2.0

References

1) HIKARI optical glass catalog 2015-04-01
2) HIKARI Zemax catalog

More info - wiki

Hikari Glass Co., Ltd. is a Japanese glass maker, a subsidiary of Nikon Corp.

External links

Latest optical glass catalog