RefractiveIndex.INFO Refractive index database

Shelf

Book

Page

Optical constants of SCHOTT - LaF (Lanthanum flint)
N-LAF35

Wavelength: µm
 (0.31 – 2.5)  
 

Other optical constants

n   k   logX   logY   eV

Dispersion formula [ i ]

$$n^2-1=\frac{1.51697436λ^2}{λ^2-0.00750943203}+\frac{0.455875464λ^2}{λ^2-0.0260046715}+\frac{1.07469242λ^2}{λ^2-80.5945159}$$

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: 8.98e-06 1.26e-08 -1.23e-11 6.24e-07 6.86e-10 0.194
n_d: 1.7433
V_d: 49.4
glass_code: 743494.412
glass_status: standard
density: 4.115 g/cm3
coefficient_of_thermal_expansion_1: 5.27e-06 K-1
coefficient_of_thermal_expansion_2: 6.38e-06 K-1
ΔP_gF: -0.0084
climatic_resistance: 2.0
stain_resistance: 1.0
acid_resistance: 52.3
alkali_resistance: 1.0
phosphate_resistance: 3.3

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