Optical constants of SCHOTT - SF (Dense flint)
SF11
Wavelength:
µm
(0.39–2.5)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{1.73848403λ^2}{λ^2-0.0136068604}+\frac{0.311168974λ^2}{λ^2-0.0615960463}+\frac{1.17490871λ^2}{λ^2-121.922711}$$Conditions & Spec sheet
n_is_absolute: false
wavelength_is_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
- type: "Schott formula"
coefficients: 1.12e-05 1.81e-08 -5.03e-11 1.46e-06 1.58e-09 0.282
nd: 1.78472
Vd: 25.76
glass_code: 785258.474
glass_status: standard
density: 4.74 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 6.1e-06 K-1
- temperature_range: 20 300 °C
coefficient: 6.8e-06 K-1
dPgF: 0.0142
climatic_resistance: 1.0
stain_resistance: 0.0
acid_resistance: 1.0
alkali_resistance: 1.2
phosphate_resistance: 1.0
Comments
lead containing
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 |