Cold electrode metal vapor laser
US4945545A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 19, 1987 |
| Grant date | Jul 31, 1990 |
| Priority date | — |
| Expiry date | Oct 19, 2007 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/031
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A metal vapor laser intended to be excited by an electrical discharge pulsed through a metal vapor, consisting of a tubular chamber terminated at each end by a terminating flange, the terminating flange (1) having formed integrally with it a cold cathode structure having associated with it a multiplicity of electron generating devices (10, 11, 12) for non-thermionic generation of electrons. The electron generating devices (10, 11, 12) consist preferably of a series of annular grooves (10) formed in the surface of a bore of the terminating flange (1) and a circular groove or grooves (11) coaxial with the axis of the laser and cut in to a face of the terminating flange (1) facing directly into the discharge volume (8). Additionally, to increase carrying capability and facility for easily striking the discharge there is provide a ring of refractory metal pins (12) fixed into that surface of the terminating flange (1).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.