发明授权
US07544923B1 LED signature elimination in specular-mode LED illumination having a light diffuser between an illuminator array and an image bearing surface
有权
在具有在照明器阵列和图像承载表面之间的光扩散器的镜面模式LED照明中的LED签名消除
- 专利标题： LED signature elimination in specular-mode LED illumination having a light diffuser between an illuminator array and an image bearing surface
- 专利标题（中）： 在具有在照明器阵列和图像承载表面之间的光扩散器的镜面模式LED照明中的LED签名消除
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申请号： US12020106申请日： 2008-01-25
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公开(公告)号： US07544923B1公开(公告)日： 2009-06-09
- 发明人: Robert Herloski , Douglas Proctor , John Juhasz , Eric Dudley
- 申请人： Robert Herloski , Douglas Proctor , John Juhasz , Eric Dudley
- 申请人地址： US CT Norwalk
- 专利权人： Xerox Corporation
- 当前专利权人： Xerox Corporation
- 当前专利权人地址： US CT Norwalk
- 代理机构： Pillsbury Winthrop Shaw Pittman LLP
- 主分类号： H01J3/14
- IPC分类号： H01J3/14
摘要：
A system for detecting reflectance from an image bearing surface in a printer or electronic copier includes an illuminator array, positioned adjacent to the image bearing surface, comprising a plurality of discrete illuminator elements that are spaced in a linear arrangement; a light diffuser positioned between the illuminator array and the image bearing surface, the light diffuser being positioned with respect to the illuminator array to receive the light beams emitted by the illuminator elements and to diffuse the light beams for transmission to the image bearing surface at an incidence angle; and a linear sensor array positioned adjacent to the image bearing surface such that specular and diffuse portions of the light beams reflecting off the image bearing surface at a reflectance angle bearing are received by the sensors.