Optical constants of SUMITA - SFLD
K-SFLD11
Wavelength:
µm
(0.370–2.000)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2=3.052913-0.012276955λ^{2}+0.041487837λ^{-2}+0.0019043764λ^{-4}-3.1653157\text{×}10^{-05}λ^{-6}+1.7320425\text{×}10^{-05}λ^{-8}$$Conditions & Spec sheet
n_is_absolute: false
wavelength_is_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
- type: "Schott formula"
coefficients: -5.51e-06 1.82e-08 -3.64e-10 1.08e-06 1.52e-09 0.28
nd: 1.78472
Vd: 25.9
glass_code: 785259
density: 3.3 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 9.3e-06 K-1
- temperature_range: 20 300 °C
coefficient: 1.05e-05 K-1
dPgF: 0.0144
climatic_resistance: 1.0
acid_resistance: 1.0
References
SUMITA Zemax catalog 2017-02-02 (obtained from http://www.sumita-opt.co.jp)
See also SUMITA optical glass data book
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 |