The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 10, 1995
Filed:
Jun. 10, 1994
Applicant:
Inventor:
Shinji Kasahara, Tokyo, JP;
Assignee:
NEC Corporation, , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01S / ;
U.S. Cl.
CPC ...
372 37 ;
Abstract
A gas laser oscillator according to the present invention comprises an ion laser tube provided with a capillary tube and an anode and a cathode as discharging electrodes disposed at its ends, plasma focusing electromagnets to generate the magnetic field for plasma focusing disposed around the ion laser tube, and a pair of optical resonance mirrors disposed at both ends of the ion laser tube, and is characterized by that the magnetic field strength at the cathode end face is set to 100 gauss or less and that the diameter of the lines of magnetic flux at the cathode end face is made to be smaller than the diameter of the capillary tube at the capillary tube end face.