Patent · US Expired

Electric discharge apparatus

US4866728A · kind A · utility

1Cited by

1References

17Claims

0Family size

Assignee

JECO.sub.2 Lasers, Inc. · US

Inventors

David Robert Evans · San Diego, US
John E. Harry · Loughborough, GB

Key dates

Filing date	Feb 4, 1988
Grant date	Sep 12, 1989
Priority date	—
Expiry date	Feb 4, 2008

Classification

Technology area (CPC H)Electricity
CPC primaryH01S3/0381
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A gas laser includes a laser cavity, mirror means defining an optical path in the cavity, electrodes defining an electric discharge path in the cavity, the electrodes including at least one anode member having a passage therethrough which at one end opens into the cavity, and gas supply means for injecting gas into the cavity through the passage, wherein the wall of the passage at said one end and the exterior of the anode member around the end of said passage is electrically insulated and an electrically conducting anode surface defining the root of the discharge is provided inwardly of the perimeter of the open end of the passage.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.