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Optical constants of HIKARI - LaSF (Lanthanum dense flint)
J-LASFH21

Wavelength: µm
 (0.360 – 2.400)  
 

Other optical constants

n   k   logX   logY   eV

Dispersion formula

$$n^2=3.67012303-0.0139442893λ^{2}-0.000136361252λ^{4}+0.0484434485λ^{-2}+0.000950687214λ^{-4}+0.000181807808λ^{-6}-1.62618274\text{×}10^{-05}λ^{-8}+1.33939862\text{×}10^{-06}λ^{-10}$$

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: 1.953750
V_d: 32.334656
density: 5.05 g/cm3
coefficient_of_thermal_expansion_1: 7e-06 K-1
ΔP_gF: 0.0004
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