CO.sub.2 gas laser device
US4841538A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 10, 1988 |
| Grant date | Jun 20, 1989 |
| Priority date | — |
| Expiry date | Nov 10, 2008 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/0971
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A CO.sub.2 gas laser device comprises a plurality of divided cathode electrodes disposed in a linear row extending transversely across a high-speed flow of a gas containing CO.sub.2, and parts of the cathode electrodes producing negative glow are disposed at the same height as anodes at a downstream position. Additionally, a device for controlling the distribution of gas flow velocity, which functions doubly as means for creating turbulent flow, and a preliminary discharge electrode are disposed on the upstream side of the cathode electrodes, the former being set at a height position corresponding substantially to that of the middle portions of the cathode electrodes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.