Optical constants of SCHOTT - SF (Dense flint)
N-SF5
Wavelength:
µm
(0.37–2.5)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{1.52481889λ^2}{λ^2-0.011254756}+\frac{0.187085527λ^2}{λ^2-0.0588995392}+\frac{1.42729015λ^2}{λ^2-129.141675}$$Conditions & Spec sheet
n_is_absolute: false
wavelength_is_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
- type: "Schott formula"
coefficients: -2.51e-07 1.07e-08 -2.4e-11 7.85e-07 1.15e-09 0.278
nd: 1.67271
Vd: 32.25
glass_code: 673323.286
glass_status: standard
density: 2.858 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 7.94e-06 K-1
- temperature_range: 20 300 °C
coefficient: 9.21e-06 K-1
dPgF: 0.0088
climatic_resistance: 1.0
stain_resistance: 0.0
acid_resistance: 1.0
alkali_resistance: 1.0
phosphate_resistance: 1.0
Comments
step 0.5 available
References
SCHOTT Zemax catalog 2017-01-20b (obtained from http://www.schott.com)
See also SCHOTT glass data sheets
Data
INFO
SF5 optical glass
SF5 is a popular optical glass. Most glass makers produce this or very similar glass under slightly different names.SF5 and similar glasses produced by different makers
| Maker | Glass |
|---|---|
| Schott | N-SF5 |
| Hikari | E-SF5 |
| HOYA | E-FD5 |
| Sumita | K-SFLD5 |
| CDGM | ZF2 |