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Optical constants of SCHOTT - SF (Dense flint)
P-SF68

Wavelength: µm
 (0.42 – 2.5)  
 

Derived optical constants

n   k   logX   logY   eV

Dispersion formula [ i ]

$$n^2-1=\frac{2.3330067λ^2}{λ^2-0.0168838419}+\frac{0.452961396λ^2}{λ^2-0.0716086325}+\frac{1.25172339λ^2}{λ^2-118.707479}$$

Conditions & Spec sheet

n_absolute: false
wavelength_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
  - type: "Schott formula"
    coefficients: 1.55e-05 2.3e-08 -3.46e-11 2.76e-06 2.93e-09 0.297
nd: 2.0052
Vd: 21
glass_status: standard
density: 6.194 g/cm3
thermal_expansion:
  - temperature_range: -30 70 °C
    coefficient: 8.43e-06 K-1
  - temperature_range: 20 300 °C
    coefficient: 9.67e-06 K-1
dPgF: 0.0308
climatic_resistance: 1.0
stain_resistance: 5.0
acid_resistance: 53.3
alkali_resistance: 2.3
phosphate_resistance: 2.3

Comments

suitable for precision molding

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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