RefractiveIndex.INFO Refractive index database

Shelf

Book

Page

Optical constants of HIKARI - LaSF (Lanthanum dense flint)
J-LASF014

Wavelength: µm
 (0.310 – 2.400)  
 

Other optical constants

n   k   logX   logY   eV

Dispersion formula

$$n^2=3.1211948-0.0137527216λ^{2}-0.000186592469λ^{4}+0.0263764849λ^{-2}+0.00045369866λ^{-4}+1.09722341\text{×}10^{-05}λ^{-6}+6.11243363\text{×}10^{-07}λ^{-8}$$

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: 1.788000
V_d: 47.354706
density: 4.36 g/cm3
coefficient_of_thermal_expansion_1: 5.7e-06 K-1
ΔP_gF: -0.009
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