Machine vision light source with improved optical efficiency
US5822053A · kind A · utility
25Cited by
9References
4Claims
0Family size
Inventor
Key dates
| Filing date | Feb 7, 1997 |
| Grant date | Oct 13, 1998 |
| Priority date | — |
| Expiry date | Feb 7, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S362/80
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention relates to an LED light source for a machine vision system. The light source includes a plurality of LEDs each arranged in a base plate in predetermined manner during manufacturing. Each LED is then securely mounted to the base plate with an ultravioletly curable adhesive to remain pointed in the predetermined manner. The light source also includes an optically efficient non-lambertain diffuser which receives light from each of the LEDs and breaks the light up to provide a uniform light field to illuminate an object under inspection.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.