Surface form analysis
Asphera Analyzer compares a measured profile with a nominal aspheric surface and helps show how the form error takes shape.
Explore the analysis
A / 01
FORM · MEASUREMENT · ANALYSIS
Surface Form Analysis
Load a .PRF profile with its surface design, then inspect the residual and PV/RMS metrics. Best Fit Radius evaluates the residual across a configured radius range.
Set radius, conic constant, clear aperture, orientation, and supported asphere coefficients in the nominal surface model.
02 / Zone analysis
Load a .diff configuration and analyse transitions against the measured profile. The zone view marks the detected bands and reports nominal-to-measured half-diameter differences.
03 / Residual fitting
Fit X offset and tilt, then review the compensation result against the measured residual. Excluded ranges remain visible in the plot and are omitted from applicable metrics.
Processing tools
Filter, reconstruct, and fit the profile while keeping raw measurements and the ordinary Form Error available as distinct states.
Detect narrow events by width and noise threshold. Reconstructed and unresolved events remain distinguishable in the processed profile.
Apply an optional Gaussian filter with a configurable cutoff length. Inspect the filtered state and its metrics separately.
Fit X offset and tilt, then compare the starting and optimised residuals.
Analysis outputs
