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Optical constants of SCHOTT - K (Crown)
N-K5

Wavelength: µm
 (0.31 – 2.5)  
 

Other optical constants

n   k   logX   logY   eV

Dispersion formula [ i ]

$$n^2-1=\frac{1.08511833λ^2}{λ^2-0.00661099503}+\frac{0.199562005λ^2}{λ^2-0.024110866}+\frac{0.930511663λ^2}{λ^2-111.982777}$$

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: -4.13e-07 1.03e-08 -3.4e-11 4.73e-07 5.19e-10 0.213
n_d: 1.52249
V_d: 59.48
glass_code: 522595.259
glass_status: standard
density: 2.59 g/cm3
coefficient_of_thermal_expansion_1: 8.2e-06 K-1
coefficient_of_thermal_expansion_2: 9.6e-06 K-1
climatic_resistance: 1.0
stain_resistance: 0.0
acid_resistance: 1.0
alkali_resistance: 1.0
phosphate_resistance: 1.0

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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