Optical constants of CDGM - ZF (Dense flint)
ZF13
Wavelength:
µm
(0.370–2.400)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2=3.06161235-0.0145895142λ^{2}+0.0328146593λ^{-2}+0.00523989954λ^{-4}-0.000560505494λ^{-6}+4.64234125\text{×}10^{-05}λ^{-8}$$Conditions & Spec sheet
n_is_absolute: false
wavelength_is_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
- type: "Schott formula"
coefficients: 3.7e-06 2.35e-08 -1.53e-10 1.59e-06 6.42e-10 0.278
nd: 1.784724
Vd: 25.754051
glass_code: 785258
glass_status: preferred
density: 4.87 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 7.8e-06 K-1
- temperature_range: 20 300 °C
coefficient: 9.6e-06 K-1
dPgF: 0.008
climatic_resistance: 1.0
References
CDGM Zemax catalog 2022-06 (obtained from http://www.cdgmgd.com)
See also CDGM optical 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 |