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Optical constants of SCHOTT - FK (Fluor crown)
N-FK58

Wavelength: µm
 (0.26 – 2.5)  
 

Derived optical constants

n   k   logX   logY   eV

Dispersion formula [ i ]

$$n^2-1=\frac{0.738042712λ^2}{λ^2-0.00339065607}+\frac{0.363371967λ^2}{λ^2-0.0117551189}+\frac{0.989296264λ^2}{λ^2-212.842145}$$

Conditions & Spec sheet

n_absolute: false
wavelength_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
  - type: "Schott formula"
    coefficients: -2.05e-05 -6.33e-09 4.13e-11 3.84e-07 1.63e-10 0.073
nd: 1.456
Vd: 90.9
glass_code: 456909.365
glass_status: standard
density: 3.646 g/cm3
thermal_expansion:
  - temperature_range: -30 70 °C
    coefficient: 1.367e-05 K-1
  - temperature_range: 20 300 °C
    coefficient: 1.572e-05 K-1
dPgF: 0.0438
climatic_resistance: 1.0
stain_resistance: 1.0
acid_resistance: 52.3
alkali_resistance: 3.3
phosphate_resistance: 4.3

Comments

XLD glass

References

SCHOTT Zemax catalog 2017-01-20b (obtained from http://www.schott.com)
See also SCHOTT glass data sheets

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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