Active laser guarding system
US8416820B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 9, 2011 |
| Grant date | Apr 9, 2013 |
| Priority date | — |
| Expiry date | Nov 9, 2031 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16P1/02
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An active laser guarding system 1 comprises at least one screen 3 provided with at least two spaced apart conductors 7, 9 each defining a respective electrically conductive path that is electrically separate from the other. The screen 3 comprises material, at least between the two conductors 7, 9, which is arranged to carbonize when struck by a laser beam to form a further conductive path 19 which extends between, and electrically connects, the two conductors 7, 9. The system 1 further comprises a detector 15 operative to detect the further conductive path 19 so formed, the detector 15 being operative to generate a laser deactivation signal response to detecting the further conductive path 19.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.