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:
Dec. 19, 1978
Filed:
Jan. 31, 1977
Victor H Hasson, San Jose, CA (US);
Hubertus M VON Bergmann, Pretoria, ZA;
South African Inventions Development Corporation, Pretoria, ZA;
Abstract
This invention provides a transversely excited travelling-wave gas laser in which the excitation pulse is shaped by a pair of elongate electrodes, the separation of which varies along their length. The separation is ideally determined empirically. Preferably, the laser has a pair of main discharge electrodes having a constant separation between which the lasing discharge occurs, and a pair of timing electrodes electrically in series with the main discharge electrodes, the separation of which varies such that the discharge between the timing electrodes provides a sharpened pulse that arrives along the main electrodes in such a manner as to obtain a travelling wave laser discharge. The main and timing electrodes are preferably segmented. The separation of the electrodes is determined empirically by bringing successive portions of the main discharge electrodes into alignment and varying the separation of corresponding portions of the timing electrodes to obtain the required timing characteristics. The laser utilizes a Blumhein-type circuit with a suitable switch.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile