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Optical constants of SCHOTT - LaSF (Lanthanum dense flint)
P-LASF51

Wavelength: µm
 (0.334 – 2.5)  
 

Other optical constants

n   k   logX   logY   eV

Dispersion formula [ i ]

$$n^2-1=\frac{1.84568806λ^2}{λ^2-0.00988495571}+\frac{0.3390016λ^2}{λ^2-0.0378097402}+\frac{1.32418921λ^2}{λ^2-97.841543}$$

Comments

suitable for precision molding

Data

[Expressions for n]   [CSV - comma separated]   [TXT - tab separated]   [Full database record]

Additional information

n_is_absolute: false
λ_is_vacuum: false
temperature: 20.0 °C
coefficients_of_thermal_dispersion: 7.79e-06 1.1e-08 -2.03e-11 7.86e-07 8.78e-10 0.215
n_d: 1.81
V_d: 40.93
glass_code: 810409.458
glass_status: standard
density: 4.579 g/cm3
coefficient_of_thermal_expansion_1: 6.01e-06 K-1
coefficient_of_thermal_expansion_2: 7.4e-06 K-1
ΔP_gF: -0.008
climatic_resistance: 1.0
stain_resistance: 1.0
acid_resistance: 51.3
alkali_resistance: 1.0
phosphate_resistance: 2.2

References

1) SCHOTT optical glass data sheets 2015-07-22
2) SCHOTT Zemax catalog 2015-07-22

More info - wiki

SCHOTT AG is a German glass manufacturer. SCHOTT also publishes a glass catalog (SCHOTT Optical Glass Datasheets), which is a standard reference for the properties of many optical glasses.

External links