公开(公告)号：US20040145648A1

公开(公告)日：2004-07-29

申请号：US10354260

申请日：2003-01-28

申请人： FUJIFILM ELECTRONIC IMAGING LIMITED

发明人： William R. Hawes

IPC分类号： B41J002/435 ,  B41J002/47

CPC分类号： G01B11/028 ,  B41J11/0095

摘要： An edge detection apparatus for detecting an edge on a surface. The apparatus comprises a source of coherent radiation for generating a radiation beam and directing the beam onto the surface. A radiation detector is located so as to detect radiation diffusely reflected, but not specularly reflected, from the surface. A system is provided for causing relative scanning movement between the radiation beam and the surface. A monitor is coupled to the detector for monitoring the intensity of the detected radiation.

摘要翻译： 一种用于检测表面上的边缘的边缘检测装置。 该装置包括用于产生辐射束并将光束引导到表面上的相干辐射源。 放射线检测器被设置为检测从表面漫射反射而不是镜面反射的辐射。 提供了一种用于在辐射束和表面之间进行相对扫描运动的系统。 监视器耦合到检测器，用于监测检测到的辐射的强度。