Zernike RMS Wavefront Error calculator
RMS WFE from a list of normalized Zernike coefficients (waves).
Category: Aberrations
Formula: WFE_rms = √Σ cᵢ²
Inputs
| Input | Parameter | Unit | Default |
|---|---|---|---|
| Defocus c | c1 | λ | 0.05 |
| Astig c | c2 | λ | 0.03 |
| Coma c | c3 | λ | 0.04 |
| Spherical c | c4 | λ | 0.02 |
Result with the default inputs
- RMS WFE: 0.0735 λ
- PV (~5×): 0.3674 λ
Open it with your own values: put each input in the address as a parameter, for example /calculators/zernike-rms-wavefront-error?c1=0.05. A unit other than the listed one goes in <parameter>_unit.
Read more: Wikipedia: Zernike polynomials