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:
Jul. 19, 2011
Filed:
Mar. 19, 2008
Yasutaka Katayama, Tokyo, JP;
Yasutaka Katayama, Tokyo, JP;
Kabushiki Kaisha TOPCON, Tokyo, JP;
Abstract
A detection sensor to detect a receiving position of laser light according to the present invention includes a pair of light receiving element arrays (X andY), wherein adjacent light receiving elements (PDXi) are positioned as spaced equidistantly from one another and are mutually connected via a resistor (RXj), and wherein the output lines (and) are respectively connected to the light receiving elements that are present at both ends of the respective light receiving element arrays (X andY). The light receiving element arrays (X andY) configure a composite array wherein the light receiving elements of a first light receiving element array are respectively positioned between the mutually adjacent light receiving elements of a second light receiving element array. When the laser beam makes contact with any of the light receiving elements, an analysis arithmetic device derives the position whereupon the laser beam is received, by performing a computation in accordance with the output that is obtained from each respective output line.