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Optical constants of SCHOTT - Obsolete glasses
N-LASF31

Wavelength: µm
 (0.32 – 2.5)  
 

Other optical constants

n   k   logX   logY   eV

Dispersion formula [ i ]

$$n^2-1=\frac{1.71317198λ^2}{λ^2-0.00819172228}+\frac{0.718575109λ^2}{λ^2-0.0297801704}+\frac{1.7233247λ^2}{λ^2-138.461313}$$

Comments

was replaced by N-LASF31A

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: 2.29e-06 8.93e-09 -1.59e-11 6.52e-07 8.09e-10 0.236
n_d: 1.88067E+00
V_d: 4.10100E+01
glass_code: 881410.541
glass_status: preferred
density: 5.41 g/cm3
coefficient_of_thermal_expansion_1: 6.8e-06 K-1
coefficient_of_thermal_expansion_2: 7.7e-06 K-1
ΔP_gF: -0.0084
climatic_resistance: 1.0
stain_resistance: 0.0
acid_resistance: 2.0
alkali_resistance: 1.0
phosphate_resistance: 1.0

References

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.

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