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Optical constants of SCHOTT - LaSF (Lanthanum dense flint)
N-LASF46B

Wavelength: µm
 (0.365 – 2.5)  
 

Derived optical constants

n   k   logX   logY   eV

Dispersion formula [ i ]

$$n^2-1=\frac{2.17988922λ^2}{λ^2-0.0125805384}+\frac{0.306495184λ^2}{λ^2-0.0567191367}+\frac{1.56882437λ^2}{λ^2-105.316538}$$

Conditions & Spec sheet

    n_is_absolute: false
    λ_is_vacuum: false
    temperature: 20.0 °C
    coefficients_of_thermal_dispersion: 5.98e-06 1.3e-08 -3.5e-12 9.13e-07 1.24e-09 0.267
    n_d: 1.90366
    V_d: 31.32
    glass_code: 904313.451
    glass_status: standard
    density: 4.51 g/cm3
    coefficient_of_thermal_expansion_1: 5.97e-06 K-1
    coefficient_of_thermal_expansion_2: 7.11e-06 K-1
    ΔP_gF: 0.0045
    climatic_resistance: 1.0
    stain_resistance: 0.0
    acid_resistance: 3.3
    alkali_resistance: 1.0
    phosphate_resistance: 1.0

Comments

suitable for precision molding

References

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

Data

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

INFO

SCHOTT AG

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.

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