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. 30, 1988
Filed:
Jul. 09, 1986
Kyoichi Deki, Himeji, JP;
Ushio Denki, Tokyo, JP;
Abstract
The present invention is for a pulsed laser system in which the total irradiation energy of the laser is controlled by the number of the laser pulses. The invention includes a device for controlling the output of the laser so that the laser oscillation is stopped when the sum of the laser outputs, in response to each pulses, has reached a predetermined level. This device comprises a laser oscillator for outputting a laser beam in response to a repetitive pulse discharge, a photoelectric conversion element, a sample hold circuit and an integrator for sampling and integrating the outputs from the photoelectric conversion elements, and a comparator for comparing the output of the integrator and the output from a reference voltage generator.