Laser beam machine based on optically scanning system
US5897800A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 28, 1997 |
| Grant date | Apr 27, 1999 |
| Priority date | — |
| Expiry date | Nov 28, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K26/128
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A beam confinement subsystem for an optical scanning system of a laser beam machine having a laser beam transfer path includes an expandable light path sealing and protecting member surrounding a portion of the laser beam transfer path, and a pressure adjusting buffer directly coupled to the expandable light path sealing and protecting member. Preferably, the pressure adjusting buffer including an expandable, airtight thin-film material. Additionally, the beam confinement can include a pressurized purge gas supply tank directly connected to the expandable light path sealing and protecting member to thereby provide greater protection from contamination to the laser beam transfer path.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.