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:
Oct. 12, 2004
Filed:
Feb. 14, 2003
Miki Kurosawa, Tokyo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A laser beam machine according to the invention comprises a scanning lens for gathering laser light deflected by a deflection mirror on a workpiece for applying the laser light to a plurality of parts in a deflection area using the above-mentioned deflection mirror and the above-mentioned scanning lens and machining the workpiece. The laser beam machine comprises energy measurement means for measuring energy of the laser light applied to a plurality of different positions in the above-mentioned deflection area, so that the energy of the laser light applied to a plurality of different positions in the deflection area can be measured, occurrence of partial energy lowering depending on the laser light application position, caused by dirt of the scanning lens can be known, and appropriate maintenance is executed based on the information, whereby it is made possible to perform stable machining over a long term without causing a machining failure to occur.