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Optical constants of HIKARI - LaSF (Lanthanum dense flint)
Q-LASFPH3S

Wavelength: µm
 (0.300 – 2.400)  
 

Derived optical constants

n   k   logX   logY   eV

Dispersion formula

$$n^2=3.14195165-0.0129889243λ^{2}-0.000159736617λ^{4}+0.0279148154λ^{-2}+0.000509887221λ^{-4}+1.32658761\text{×}10^{-05}λ^{-6}+5.1483904\text{×}10^{-07}λ^{-8}$$

Conditions & Spec sheet

n_absolute: false
λ_vacuum: false
temperature: 23.0 °C
thermal_dispersion:
  - type: "Schott formula"
    coefficients: 7.214769e-06 1.384106e-08 2.397527e-12 7.530988e-07 4.214031e-10 0.1880134
n_d: 1.795256
V_d: 45.252757
density: 4.83 g/cm3
thermal_expansion:
  - temperature_range: -30 70 °C
    coefficient: 5.9e-06 K-1
ΔP_gF: -0.0095
phosphate_resistance: 2.0

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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