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Optical constants of SCHOTT - LaF (Lanthanum flint)
LAFN7

Wavelength: µm
 (0.35 – 2.5)  
 

Other optical constants

n   k   logX   logY   eV

Dispersion formula [ i ]

$$n^2-1=\frac{1.66842615λ^2}{λ^2-0.0103159999}+\frac{0.298512803λ^2}{λ^2-0.0469216348}+\frac{1.0774376λ^2}{λ^2-82.5078509}$$

Comments

lead containing glass type

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: 7.27e-06 1.31e-08 -3.32e-11 8.88e-07 9.32e-10 0.248
n_d: 1.7495
V_d: 34.95
glass_code: 750350.438
glass_status: standard
density: 4.38 g/cm3
coefficient_of_thermal_expansion_1: 5.3e-06 K-1
coefficient_of_thermal_expansion_2: 6.4e-06 K-1
ΔP_gF: -0.0025
climatic_resistance: 3.0
stain_resistance: 1.0
acid_resistance: 53.3
alkali_resistance: 2.2
phosphate_resistance: 4.3

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