公开(公告)号：EP1161655A1

公开(公告)日：2001-12-12

申请号：EP00907531.8

申请日：2000-02-09

申请人： NexPress LLC

发明人： LEVY, Carsten ,  BÖNICK, Rainer

IPC分类号： G01B11/02 ,  G01B11/04

CPC分类号： B41J11/0095 ,  B65H7/14 ,  B65H2511/20 ,  B65H2511/514 ,  B65H2515/60 ,  B65H2553/412 ,  B65H2557/516 ,  B65H2701/131 ,  B65H2701/1712 ,  G01B11/028 ,  G01D5/344 ,  B65H2220/03 ,  B65H2220/01

摘要： The invention relates to a system for the contactless optical detection of the position of an edge of a transparent article, especially of a plastic body. In order to detect an edge of the article a transparent plastic body is guided between two crossed polarizers and the incident light is twisted by the transparent plastic body in such a manner that an analyzer arranged below the crossed polarizers can detect the twisted light.

公开(公告)号：EP1161655B1

公开(公告)日：2003-07-09

申请号：EP00907531.8

申请日：2000-02-09

申请人： NexPress LLC

发明人： LEVY, Carsten ,  BÖNICK, Rainer

IPC分类号： G01B11/02 ,  G01B11/04

CPC分类号： B41J11/0095 ,  B65H7/14 ,  B65H2511/20 ,  B65H2511/514 ,  B65H2515/60 ,  B65H2553/412 ,  B65H2557/516 ,  B65H2701/131 ,  B65H2701/1712 ,  G01B11/028 ,  G01D5/344 ,  B65H2220/03 ,  B65H2220/01

摘要： The invention relates to a system for the contactless optical detection of the position of an edge of a transparent article, especially of a plastic body. In order to detect an edge of the article a transparent plastic body is guided between two crossed polarizers and the incident light is twisted by the transparent plastic body in such a manner that an analyzer arranged below the crossed polarizers can detect the twisted light.