RefractiveIndex.INFO

Refractive index database

Shelf

Book

Page

Optical constants of SCHOTT - SF (Dense flint)
SFL57

Wavelength: µm
 (0.39 – 2.5)  
 

Derived optical constants

n   k   logX   logY   eV

Dispersion formula [ i ]

$$n^2-1=\frac{1.88742326λ^2}{λ^2-0.0145939341}+\frac{0.360534025λ^2}{λ^2-0.0648198946}+\frac{2.26189313λ^2}{λ^2-176.062211}$$

Conditions & Spec sheet

n_absolute: false
wavelength_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
  - type: "Schott formula"
    coefficients: -3.63e-06 8.61e-09 -9.98e-12 1.1e-06 1.69e-09 0.293
nd: 1.84666
Vd: 23.62
glass_code: 847236.355
glass_status: special
density: 3.55 g/cm3
thermal_expansion:
  - temperature_range: -30 70 °C
    coefficient: 8.7e-06 K-1
  - temperature_range: 20 300 °C
    coefficient: 1e-05 K-1
dPgF: 0.0177
climatic_resistance: 1.0
stain_resistance: 0.0
acid_resistance: 1.3
alkali_resistance: 1.0
phosphate_resistance: 1.3

Comments

inquiry 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.

External links


Glass

External links