Optical constants of SCHOTT - SF (Dense flint)
N-SF11
Wavelength:
µm
(0.37–2.5)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{1.73759695λ^2}{λ^2-0.013188707}+\frac{0.313747346λ^2}{λ^2-0.0623068142}+\frac{1.89878101λ^2}{λ^2-155.23629}$$Conditions & Spec sheet
n_is_absolute: false
wavelength_is_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
- type: "Schott formula"
coefficients: -3.56e-06 9.2e-09 -2.1e-11 9.65e-07 1.44e-09 0.294
nd: 1.78472
Vd: 25.68
glass_code: 785257.322
glass_status: standard
density: 3.224 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 8.52e-06 K-1
- temperature_range: 20 300 °C
coefficient: 9.85e-06 K-1
dPgF: 0.015
climatic_resistance: 1.0
stain_resistance: 0.0
acid_resistance: 1.0
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
INFO
SF11 optical glass
SF11 is a popular optical glass. Most glass makers produce this or very similar glass under slightly different names.SF11 and similar glasses produced by different makers
| Maker | Glass |
|---|---|
| Schott | N-SF11 |
| Hikari | E-SF11 |
| Sumita | K-SFLD11 |
| CDGM | ZF13 |