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Optical constants of HIKARI - LaF (Lanthanum flint)
J-LAF7

Wavelength: µm
 (0.360 – 2.400)  
 

Other optical constants

n   k   logX   logY   eV

Dispersion formula

$$n^2=2.96739544-0.0118139418λ^{2}-0.000133628078λ^{4}+0.0310749099λ^{-2}+0.000654571893λ^{-4}+9.85567905\text{×}10^{-05}λ^{-6}-8.8311254\text{×}10^{-06}λ^{-8}+8.38843732\text{×}10^{-07}λ^{-10}$$

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: 1.749500
V_d: 35.248835
density: 3.62 g/cm3
coefficient_of_thermal_expansion_1: 7.3e-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