RefractiveIndex.INFO

Refractive index database

Shelf

Book

Page

Optical constants of SCHOTT - SF (Dense flint)
SF57

Wavelength: µm
 (0.37 – 2.5)  
 

Derived optical constants

n   k   logX   logY   eV

Dispersion formula [ i ]

$$n^2-1=\frac{1.81651371λ^2}{λ^2-0.0143704198}+\frac{0.428893641λ^2}{λ^2-0.0592801172}+\frac{1.07186278λ^2}{λ^2-121.419942}$$

Conditions & Spec sheet

n_absolute: false
wavelength_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
  - type: "Schott formula"
    coefficients: 7.26e-06 1.88e-08 -5.14e-11 1.96e-06 1.79e-09 0.276
nd: 1.84666
Vd: 23.83
glass_code: 847238.551
glass_status: standard
density: 5.51 g/cm3
thermal_expansion:
  - temperature_range: -30 70 °C
    coefficient: 8.3e-06 K-1
  - temperature_range: 20 300 °C
    coefficient: 9.2e-06 K-1
dPgF: 0.0123
climatic_resistance: 2.0
stain_resistance: 5.0
acid_resistance: 52.3
alkali_resistance: 2.3
phosphate_resistance: 4.3

Comments

lead containing glass type. 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.

External links


Glass

External links