Pharmaceutical tablet vision inspection system
US5085510A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 28, 1990 |
| Grant date | Feb 4, 1992 |
| Priority date | — |
| Expiry date | Aug 28, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2021/845
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A visual inspection system for inspecting pharmaceutical tablets. The system comprises a photoelectric detection means for detecting the light intensity within an inspection area on a tablet and for generating a detection signal which varies with that light intensity. The system also comprises a signal processing means for comparing the detection signal to a predetermined standard in order to generate a selection signal and a transducer means which is responsive to the selection signal. A separation means separates the tablets into at least two groups in accordance with the selection signal. Yet another aspect of this invention is a method for inspecting the surface of pharmaceutical tablets using the above-described vision inspection system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.