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Optical constants of SCHOTT - K (Crown)
N-ZK7

Wavelength: µm
 (0.3 – 2.5)  
 

Other optical constants

n   k   logX   logY   eV

Dispersion formula [ i ]

$$n^2-1=\frac{1.07715032λ^2}{λ^2-0.00676601657}+\frac{0.168079109λ^2}{λ^2-0.0230642817}+\frac{0.851889892λ^2}{λ^2-89.0498778}$$

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: 1.15e-05 1.73e-08 -8.06e-11 4.32e-07 7.05e-10 0.179
n_d: 1.50847
V_d: 61.19
glass_code: 508612.249
glass_status: standard
density: 2.49 g/cm3
coefficient_of_thermal_expansion_1: 4.5e-06 K-1
coefficient_of_thermal_expansion_2: 5.2e-06 K-1
ΔP_gF: -0.0039
climatic_resistance: 1.0
stain_resistance: 0.0
acid_resistance: 2.0
alkali_resistance: 1.2
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.

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