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Optical constants of HIKARI - LaSF (Lanthanum dense flint)
J-LASFH17

Wavelength: µm
 (0.380 – 2.400)  
 

Other optical constants

n   k   logX   logY   eV

Dispersion formula

$$n^2=3.81071676-0.0163737936λ^{2}+0.0583672875λ^{-2}+0.00412726108λ^{-4}-0.000552229126λ^{-6}+0.000141302816λ^{-8}-1.45517862\text{×}10^{-05}λ^{-10}+7.444268\text{×}10^{-07}λ^{-12}$$

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: 2.000690
V_d: 25.455728
density: 4.69 g/cm3
coefficient_of_thermal_expansion_1: 6.8e-06 K-1
ΔP_gF: 0.0123
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