Phase-shifting interferometry is now used widely to map the deviations of optical surfaces from a reference plane or reference sphere. However, the accuracy of such measurements is limited by sys- tematic errors due to several causes. These systematic errors can be minimized by a simple averaging technique.
No takes yet. Share an insight, caveat, or question.
Parameswaran Hariharan (2000) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: