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Optical constants of SCHOTT - SF (Dense flint)
N-SF4

Wavelength: µm
 (0.365–2.5)  
 

Complex refractive index (n+ik)[ i ]


n   k   LogX   LogY   eV

Derived optical constants

Dispersion formula [ i ]

$$n^2-1=\frac{1.67780282λ^2}{λ^2-0.012679345}+\frac{0.282849893λ^2}{λ^2-0.0602038419}+\frac{1.63539276λ^2}{λ^2-145.760496}$$

Conditions & Spec sheet

n_is_absolute: false
wavelength_is_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
  - type: "Schott formula"
    coefficients: -4.88e-06 6.57e-09 -2.72e-11 9.67e-07 1.48e-09 0.282
nd: 1.75513
Vd: 27.38
glass_code: 755274.315
glass_status: standard
density: 3.145 g/cm3
thermal_expansion:
  - temperature_range: -30 70 °C
    coefficient: 9.45e-06 K-1
  - temperature_range: 20 300 °C
    coefficient: 1.087e-05 K-1
dPgF: 0.0118
climatic_resistance: 1.0
stain_resistance: 0.0
acid_resistance: 1.3
alkali_resistance: 1.0
phosphate_resistance: 1.0

Comments

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

SF5 optical glass

SF5 is a popular optical glass. Most glass makers produce this or very similar glass under slightly different names.

SF5 and similar glasses produced by different makers

Maker Glass
Schott N-SF5
Hikari E-SF5
HOYA E-FD5
Sumita K-SFLD5
CDGM ZF2

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.

External links


Glass

External links