RefractiveIndex.INFO Refractive index database

Shelf

Book

Page

Optical constants of HIKARI - LaSF (Lanthanum dense flint)
J-LASF02

Wavelength: µm
 (0.340 – 2.400)  
 

Other optical constants

n   k   logX   logY   eV

Dispersion formula

$$n^2=3.15037829-0.0126701101λ^{2}-0.00018434208λ^{4}+0.0301788791λ^{-2}+0.000435495344λ^{-4}+5.91055881\text{×}10^{-05}λ^{-6}-3.81755339\text{×}10^{-06}λ^{-8}+2.51546253\text{×}10^{-07}λ^{-10}$$

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: 1.799520
V_d: 42.086944
density: 4.51 g/cm3
coefficient_of_thermal_expansion_1: 5.3e-06 K-1
ΔP_gF: -0.007
phosphate_resistance: 2.0

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