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Optical constants of HIKARI - LaSF (Lanthanum dense flint)
J-LASF013

Wavelength: µm
 (0.340 – 2.400)  
 

Other optical constants

n   k   logX   logY   eV

Dispersion formula

$$n^2=3.1635095-0.0145894059λ^{2}-0.000212587159λ^{4}+0.0315033746λ^{-2}+0.000585519102λ^{-4}+5.85508847\text{×}10^{-05}λ^{-6}-3.44096993\text{×}10^{-06}λ^{-8}+3.17840715\text{×}10^{-07}λ^{-10}$$

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: 1.804400
V_d: 39.607321
density: 4.2 g/cm3
coefficient_of_thermal_expansion_1: 5.1e-06 K-1
ΔP_gF: -0.006
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