Apparatus for surface image sensing and surface inspection of three-dimensional structures
US6393141B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 10, 1998 |
| Grant date | May 21, 2002 |
| Priority date | — |
| Expiry date | Sep 10, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01B11/25
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An apparatus for providing a two-dimensional image of a three-dimensional object illuminates the surface of the object using an illumination source. Portions of the surface are imaged through an aperture in a plate onto a portion of a matrix sensor. The object is rotated about its principle axis while being simultaneously translated, and, at the same time the aperture is also rotated. By synchronizing these translational and rotational movements, successive portions of the object surface can image onto respective successive portions of the matrix sensor, thereby providing an improve two-dimensional image of the surface of the object.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.