Spherical form measuring and analyzing method
US6912055B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 14, 2003 |
| Grant date | Jun 28, 2005 |
| Priority date | — |
| Expiry date | Jan 1, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01M11/0271
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Respective regional form information items obtained from regional interference fringe images corresponding to partial regions of a spherical surface to be inspected are transformed into regional synthesis form information items corresponding to a common coordinate system set for aperture synthesis by using a relationship among a polar coordinate system of the spherical surface, a plane coordinate system of an imaging plane, and the common coordinate system. Thus obtained regional synthesis form information items are subjected to aperture synthesis processing, so as to determine the overall form information of the spherical surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.