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Optical constants of HIKARI - LaSF (Lanthanum dense flint)
Q-LASF03S

Wavelength: µm
 (0.320 – 2.400)  
 

Derived optical constants

n   k   logX   logY   eV

Dispersion formula

$$n^2=3.1699583-0.012153683λ^{2}-0.000127440597λ^{4}+0.0309253962λ^{-2}+0.000733513997λ^{-4}+6.0190839\text{×}10^{-06}λ^{-6}+2.17380961\text{×}10^{-06}λ^{-8}$$

Conditions & Spec sheet

n_is_absolute: false
λ_is_vacuum: false
temperature: 23.0 °C
coefficients_of_thermal_dispersion: 1.0303e-05 1.4294e-08 -9.4458e-13 8.9892e-07 1.0565e-09 0.21112
n_d: 1.806040
V_d: 40.737356
density: 4.48 g/cm3
coefficient_of_thermal_expansion_1: 7.1e-06 K-1
ΔP_gF: -0.007
phosphate_resistance: 3.0

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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