公开(公告)号：EP1040319B1

公开(公告)日：2005-03-02

申请号：EP99950717.1

申请日：1999-10-13

申请人： CARL ZEISS JENA GmbH

发明人： BARTZKE, Karlheinz ,  MACK, Stefan ,  MASCHKE, Gunter ,  BURKHARDT, Matthias ,  DITAS, Peter

IPC分类号： G01D5/34

CPC分类号： G01D5/34

摘要： The invention relates to a device using a light barrier system (3) in order to detect the positional change between two bodies (1, 2) moving in relation to one another. According to the invention, means (5, 6) which are arranged on at least one of both bodies (1, 2) lead to, when the bodies (1, 2) are moved in relation to one another, a signal variation of the light barrier system (3) which can be evaluated. To this end, at least one pair of light barrier systems (3, 4) is interconnected directly or via an electronic circuit.

公开(公告)号：EP1040319A1

公开(公告)日：2000-10-04

申请号：EP99950717.1

申请日：1999-10-13

申请人： CARL ZEISS JENA GmbH

发明人： BARTZKE, Karlheinz ,  MACK, Stefan ,  MASCHKE, Gunter ,  BURKHARDT, Matthias ,  DITAS, Peter

IPC分类号： G01D5/34

CPC分类号： G01D5/34

摘要： The invention relates to a device using a light barrier system (3) in order to detect the positional change between two bodies (1, 2) moving in relation to one another. According to the invention, means (5, 6) which are arranged on at least one of both bodies (1, 2) lead to, when the bodies (1, 2) are moved in relation to one another, a signal variation of the light barrier system (3) which can be evaluated. To this end, at least one pair of light barrier systems (3, 4) is interconnected directly or via an electronic circuit.