发明名称 OPTICAL SCANNER
摘要 <p>An improved optical scanner has a light source and a focusing element to direct the light to a region of an adjacent moving web. The sensor also includes a second focusing element to focus the reflected light onto a slit having a selected orientation. Electronic elements sense the light passing through the slit and generate an output control signal.</p>
申请公布号 CA1201785(A) 申请公布日期 1986.03.11
申请号 CA19820399930 申请日期 1982.03.31
申请人 HURLETRONALTAIR INC . 发明人 BETZ, HOWARD T.;SCHULENBURG, EDWARD J., JR.
分类号 B65H23/04;G06K7/10;(IPC1-7):G01N21/86 主分类号 B65H23/04
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