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

Wavelength: µm
 (0.340 – 2.400)  
 

Derived optical constants

n   k   logX   logY   eV

Dispersion formula

$$n^2=3.32568261-0.0131452099λ^{2}-0.000122888003λ^{4}+0.0340195247λ^{-2}+0.000806964071λ^{-4}+9.93603976\text{×}10^{-06}λ^{-6}+2.07903061\text{×}10^{-06}λ^{-8}$$

Conditions & Spec sheet

n_is_absolute: false
λ_is_vacuum: false
temperature: 23.0 °C
n_d: 1.851170
V_d: 40.049815
glass_status: preferred
density: 5.3 g/cm3
coefficient_of_thermal_expansion_1: 5.9e-06 K-1
ΔP_gF: -0.0079
phosphate_resistance: 1.0

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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