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:
Aug. 13, 1991
Filed:
Dec. 19, 1988
Applicant:
Inventor:
Alan E Hill, Albuquerque, NM (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01S / ; H05B / ;
U.S. Cl.
CPC ...
372 38 ; 372 25 ; 372 85 ; 315160 ;
Abstract
A control circuit for a laser system having a first and second power supply connected in parallel. A mode selector is available to the laser operator to change the operational mode of the laser system from continuous to pulse mode or vice versa, and any combination of the modes. In the pulse mode, a series of short-time voltage pulses is superimposed on a low power level laser mode by using the circuit control characteristic of the thyratron tube and shunting the ballast resistors to sharply increase the laser output power for the duration of the individual pulses.