公开(公告)号：EP0533120A3

公开(公告)日：1993-05-12

申请号：EP92115795.4

申请日：1992-09-16

申请人： Hewlett-Packard Company

发明人： Beauchamp, Robert Warren ,  Martos, Isidre Rosello ,  Granda, Luis Fernandez

IPC分类号： G06K15/22

CPC分类号： B43L13/024 ,  G01D15/16 ,  G06K5/00 ,  G06K15/22

摘要： An optical sensor for monitoring plotter pen performance by sensing the quality of lines drawn on a medium comprises a light source (80) emitting a beam of green light which is angularly directed toward an underlying line so as to reflect into an optical sensor (82) which measures the print contrast ratio of a point on the line. Circuit means amplifies and filters the signal generated by the optical sensor.

公开(公告)号：EP0533120A2

公开(公告)日：1993-03-24

申请号：EP92115795.4

申请日：1992-09-16

申请人： Hewlett-Packard Company

发明人： Beauchamp, Robert Warren ,  Martos, Isidre Rosello ,  Granda, Luis Fernandez

IPC分类号： G06K15/22

CPC分类号： B43L13/024 ,  G01D15/16 ,  G06K5/00 ,  G06K15/22

摘要： An optical sensor for monitoring plotter pen performance by sensing the quality of lines drawn on a medium comprises a light source (80) emitting a beam of green light which is angularly directed toward an underlying line so as to reflect into an optical sensor (82) which measures the print contrast ratio of a point on the line. Circuit means amplifies and filters the signal generated by the optical sensor.

摘要翻译： 用于通过感测介质上绘制的线的质量来监测绘图仪笔性能的光学传感器包括发射绿色光束的光源（80），所述光源成角度地指向下面的线以便反射到光学传感器（82）中， 其测量线上的点的印刷对比度。 电路意味着对由光学传感器产生的信号进行放大和滤波。