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Optical constants of HIKARI - LaF (Lanthanum flint)
J-LAF02

Wavelength: µm
 (0.340 – 2.400)  
 

Other optical constants

n   k   logX   logY   eV

Dispersion formula

$$n^2=2.88586901-0.0102242298λ^{2}-5.7330265\text{×}10^{-05}λ^{4}+0.0243594329λ^{-2}+0.000671639978λ^{-4}-1.38459487\text{×}10^{-05}λ^{-6}+2.96139784\text{×}10^{-06}λ^{-8}$$

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: 1.720000
V_d: 43.610054
density: 3.88 g/cm3
coefficient_of_thermal_expansion_1: 6.8e-06 K-1
ΔP_gF: -0.0029
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