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:
Apr. 30, 2013
Filed:
Nov. 09, 2010
Atsushi Tanaka, Osaka, JP;
Tetsunori Mitsuoka, Osaka, JP;
Atsushi Tanaka, Osaka, JP;
Tetsunori Mitsuoka, Osaka, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
A defective laser element detector gives a fault detection of every laser element in each laser array. A controller determines whether the fault can be compensated for by the other laser elements, taking into account the arrangement, variation and other factors of available laser elements. If it is determined that the fault can be compensated, the controller increases the power of other laser elements individually based on comprehensive evaluation from the parameters such as irradiation areas, amounts of irradiation, irradiation timing and the like of the other adjacent laser elements in the same array including the fault and in the other arrays, so as to compensate the area of irradiation to be irradiated by the defective laser element as a whole.