发明授权
- 专利标题： Optical code reading device with autofocussing
- 专利标题（中）： 具有自动对焦功能的光学代码读取装置
-
申请号： US731295申请日： 1991-07-16
-
公开(公告)号： US5122644A公开(公告)日： 1992-06-16
- 发明人: Kazuo Hasegawa , Junichi Ouchi , Ikuo Ouchi
- 申请人： Kazuo Hasegawa , Junichi Ouchi , Ikuo Ouchi
- 申请人地址： JPX Tokyo
- 专利权人： Alps Electric Co., Ltd.
- 当前专利权人： Alps Electric Co., Ltd.
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX63-288954 19881117; JPX1-126801 19890522; JPX1-126802 19890522; JPX1-139156 19890602
- 主分类号： G06K7/10
- IPC分类号： G06K7/10
摘要：
In a code reading device, which receives reflected light obtained by scanning a code represented on a recording medium with a laser light beam and decodes it to obtain the code, the reading probability is improved by varying the focusing position for every scanning period with the laser light beam.
公开/授权文献
- US5897432A Shirred food casing end system 公开/授权日：1999-04-27
信息查询
