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Optical constants of HIKARI - LaSF (Lanthanum dense flint)
J-LASFH15

Wavelength: µm
 (0.360 – 2.400)  
 

Other optical constants

n   k   logX   logY   eV

Dispersion formula

$$n^2=3.64640666-0.0151039558λ^{2}+0.0480157444λ^{-2}+0.00349072452λ^{-4}-0.000573639028λ^{-6}+0.000130249514λ^{-8}-1.29576789\text{×}10^{-05}λ^{-10}+5.92144355\text{×}10^{-07}λ^{-12}$$

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: 1.950000
V_d: 29.366344
density: 4.79 g/cm3
coefficient_of_thermal_expansion_1: 7.4e-06 K-1
ΔP_gF: 0.005
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