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Optical constants of SCHOTT - SF (Dense flint)
SF56A

Wavelength: µm
 (0.37 – 2.5)  
 

Derived optical constants

n   k   logX   logY   eV

Dispersion formula [ i ]

$$n^2-1=\frac{1.70579259λ^2}{λ^2-0.0133874699}+\frac{0.344223052λ^2}{λ^2-0.0579561608}+\frac{1.09601828λ^2}{λ^2-121.616024}$$

Conditions & Spec sheet

n_absolute: false
wavelength_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
  - type: "Schott formula"
    coefficients: 6.02e-06 1.7e-08 -2.61e-11 1.63e-06 1.59e-09 0.269
nd: 1.7847
Vd: 26.08
glass_code: 785261.492
glass_status: standard
density: 4.92 g/cm3
thermal_expansion:
  - temperature_range: -30 70 °C
    coefficient: 7.9e-06 K-1
  - temperature_range: 20 300 °C
    coefficient: 8.8e-06 K-1
dPgF: 0.0098
climatic_resistance: 1.0
stain_resistance: 1.0
acid_resistance: 3.2
alkali_resistance: 2.2
phosphate_resistance: 3.2

Comments

lead containing glass type

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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