Invention Grant
- Patent Title: Detector element matrix for an optical position measuring instrument
- Patent Title (中): 光学位置测量仪器的检测元件矩阵
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Application No.: US12734131Application Date: 2008-09-27
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Publication No.: US08169619B2Publication Date: 2012-05-01
- Inventor: Johann Oberhauser
- Applicant: Johann Oberhauser
- Applicant Address: DE Traunreut
- Assignee: Dr. Johannes Heidenhain GmbH
- Current Assignee: Dr. Johannes Heidenhain GmbH
- Current Assignee Address: DE Traunreut
- Agency: Brinks Hofer Gilson & Lione
- Priority: DE102007050253 20071020
- International Application: PCT/EP2008/008245 WO 20080927
- International Announcement: WO2009/049761 WO 20090423
- Main IPC: G01B11/02
- IPC: G01B11/02

Abstract:
A detector element array for an optical position measuring instrument, by way of such array a fringe pattern resulting in a detector plane can be converted into electrical scanning signals. The detector element array includes a plurality of light-sensitive detector elements disposed in matrix-like fashion in rows and columns. The plurality of light-sensitive detector elements include a first detector element in a first column of the columns, a second detector element in the first column that is adjacent to the first detector element and a third detector element in a second column of the columns that is adjacent to the first column, wherein the third detector element is diagonally adjacent to the first detector element. The detector element array includes a first switch that selectively directly connects the first detector element with the second detector element and a second switch that selectively directly connects the first detector element with the third detector element. The detector element array includes a memory element associated with the first detector element, wherein memory element information is stored in the memory element that indicates which of the second and third detector elements is connected to the first detector element in an established scanning configuration, wherein no more than the first and second switches are associated with the memory element.
Public/Granted literature
- US20100245839A1 DETECTOR ELEMENT MATRIX FOR AN OPTICAL POSITION MEASURING INSTRUMENT Public/Granted day:2010-09-30
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