System and method for acquiring images
US8284305B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 23, 2009 |
| Grant date | Oct 9, 2012 |
| Priority date | — |
| Expiry date | Dec 4, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2201/0655
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A vision system useful in acquiring images includes: a light dome having a window and a perimeter; an annular light curtain positioned within and radially inwardly from the perimeter of the light dome such that an annular gap is formed between the light dome and the light curtain; and a light ring positioned to illuminate the gap between the light dome and the light curtain. The light curtain and window are sized and positioned such that no direct light from the light ring reaches the window. The system further comprises a camera having a lens facing the window to acquire images of an object on a side of the window opposite the camera. The images acquired by the camera can then be compared to stored images to determine whether the identity of the objects (which may be pharmaceutical tablets) is as expected.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.