RefractiveIndex.INFO

Refractive index database

Shelf

Book

Page

Optical constants of LASF9
N-LASF9 (SCHOTT)

Wavelength: µm
 (0.365 – 2.5)  
 

Derived optical constants

n   k   logX   logY   eV

Dispersion formula [ i ]

$$n^2-1=\frac{2.00029547λ^2}{λ^2-0.0121426017}+\frac{0.298926886λ^2}{λ^2-0.0538736236}+\frac{1.80691843λ^2}{λ^2-156.530829}$$

Conditions & Spec sheet

n_absolute: false
λ_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
  - type: "Schott formula"
    coefficients: 1.05e-06 1.02e-08 -2.38e-11 9.19e-07 1.18e-09 0.257
n_d: 1.85025
V_d: 32.17
glass_code: 850322.441
glass_status: standard
density: 4.41 g/cm3
thermal_expansion:
  - temperature_range: -30 70 °C
    coefficient: 7.37e-06 K-1
  - temperature_range: 20 300 °C
    coefficient: 8.38e-06 K-1
ΔP_gF: 0.0037
climatic_resistance: 1.0
stain_resistance: 0.0
acid_resistance: 2.0
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

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


N-LASF9 optical glass

N-LASF9 is a lanthanum dense flint optical glass produced by Schott AG

Glass

External links