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Optical constants of HIKARI - LaSF (Lanthanum dense flint)
E-LASFH15

Wavelength: µm
 (0.370 – 2.400)  
 

Derived optical constants

n   k   logX   logY   eV

Dispersion formula

$$n^2=3.64564579-0.0149009227λ^{2}+0.0493219809λ^{-2}+0.00239217482λ^{-4}-9.28226213\text{×}10^{-05}λ^{-6}+1.87217041\text{×}10^{-05}λ^{-8}-2.00969759\text{×}10^{-05}λ^{4}$$

Conditions & Spec sheet

n_absolute: false
λ_vacuum: false
temperature: 23.0 °C
n_d: 1.950000
V_d: 29.365360
glass_status: preferred
density: 4.78 g/cm3
thermal_expansion:
  - temperature_range: -30 70 °C
    coefficient: 8.6e-06 K-1
ΔP_gF: 0.0058

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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