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Optical constants of HIKARI - LaF (Lanthanum flint)
Q-LAF010S

Wavelength: µm
 (0.280 – 2.400)  
 

Derived optical constants

n   k   logX   logY   eV

Dispersion formula

$$n^2=2.9704824-0.0118584636λ^{2}-0.000166775197λ^{4}+0.0236062466λ^{-2}+0.000356836115λ^{-4}+1.2356508\text{×}10^{-05}λ^{-6}+1.07206448\text{×}10^{-07}λ^{-8}$$

Conditions & Spec sheet

n_absolute: false
wavelength_vacuum: false
temperature: 23.0 °C
thermal_dispersion:
  - type: "Schott formula"
    coefficients: 9.9182e-06 1.3238e-08 -1.5966e-12 7.4505e-07 7.5289e-10 0.18753
nd: 1.743000
Vd: 49.247590
density: 4.29 g/cm3
thermal_expansion:
  - temperature_range: -30 70 °C
    coefficient: 5.4e-06 K-1
dPgF: -0.0083
phosphate_resistance: 4.0

Comments

For mold lens

References

NIKON Zemax catalog 2017-11 (obtained from http://www.nikon.com)
See also HIKARI glass data sheets

Data

[Expressions for n]   [CSV - comma separated]   [TXT - tab separated]   [Full database record]

INFO

Hikari Glass Co., Ltd.

Hikari Glass Co., Ltd. is a Japanese glass maker, a subsidiary of Nikon Corp.

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