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Optical constants of HIKARI - LaSF (Lanthanum dense flint)
J-LASFH2

Wavelength: µm
 (0.330 – 2.400)  
 

Other optical constants

n   k   logX   logY   eV

Dispersion formula

$$n^2=3.04927657-0.0145487808λ^{2}-0.000168864692λ^{4}+0.0251825857λ^{-2}+0.000522534606λ^{-4}+2.91654231\text{×}10^{-06}λ^{-6}+1.27935733\text{×}10^{-06}λ^{-8}$$

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: 1.766840
V_d: 46.777867
density: 4.11 g/cm3
coefficient_of_thermal_expansion_1: 5.5e-06 K-1
ΔP_gF: -0.0083
phosphate_resistance: 1.0

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