Method and apparatus for reading relief carried on a transparent or translucent receptacle
US6049389A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 20, 1998 |
| Grant date | Apr 11, 2000 |
| Priority date | — |
| Expiry date | Jul 20, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K2019/06271
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The invention provides a method of optically reading relief carried by the outside wall of a transparent or translucent receptacle. The method of the, invention consists: PA1 in illuminating the receptacle by means of an incident light cone supplied by a lighting system placed beneath the receptacle; PA1 in adjusting the width of the incident light cone to limit lighting at least to the portion of the outside wall that is provided with relief in order to avoid parasitic reflections; PA1 in picking up the reflected light beams by means of the pick-up element disposed beneath the receptacle and suitable for forming a plane image of the wall of the bottle; and PA1 in adjusting the field angle of the pick-up element as a function of the characteristics of the receptacle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.