Optical constants of CDGM - ZF (Dense flint)
ZF2
Wavelength:
µm
(0.340–2.400)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2=2.70820441-0.00794171159λ^{2}+0.0292224783λ^{-2}+0.000884931615λ^{-4}+6.6862056\text{×}10^{-07}λ^{-6}+5.65902766\text{×}10^{-06}λ^{-8}$$Conditions & Spec sheet
n_is_absolute: false
wavelength_is_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
- type: "Schott formula"
coefficients: 7.92e-07 2.05e-08 2.6e-11 1.28e-06 3.74e-10 0.232
nd: 1.672707
Vd: 32.180986
glass_code: 673322
glass_status: preferred
density: 4.08 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 8.5e-06 K-1
- temperature_range: 20 300 °C
coefficient: 9.5e-06 K-1
dPgF: -0.0014
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
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 |