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Optical constants of HIKARI - LaSF (Lanthanum dense flint)
P-LASFH18S

Wavelength: µm
 (0.330 – 2.400)  
 

Derived optical constants

n   k   logX   logY   eV

Dispersion formula

$$n^2=3.32566886-0.0131396072λ^{2}+0.0340298328λ^{-2}+0.000803745646λ^{-4}+1.03681091\text{×}10^{-05}λ^{-6}+2.05840857\text{×}10^{-06}λ^{-8}-0.000123587896λ^{4}$$

Conditions & Spec sheet

n_is_absolute: false
λ_is_vacuum: false
temperature: 23.0 °C
n_d: 1.851170
V_d: 40.049954
glass_status: preferred
density: 5.27 g/cm3
coefficient_of_thermal_expansion_1: 7.3e-06 K-1
ΔP_gF: -0.0072

Comments

Low Tg glass

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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