专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

2. 发明授权

US5597997A Optical information reader 失效
标题翻译：光信息阅读器
公开(公告)号：US5597997A
公开(公告)日：1997-01-28
申请号：US540239
申请日：1995-10-05
申请人： Kenzo Obata , Yosimi Kitazumi , Takeshi Watanabe , Kouji Teramae , Tadao Nojiri
发明人： Kenzo Obata , Yosimi Kitazumi , Takeshi Watanabe , Kouji Teramae , Tadao Nojiri
IPC分类号： G06K7/10
CPC分类号： G06K7/10851 , G06K7/10732 , G06K7/10752 , G06K2207/1018
摘要： To accurately read optical information more than an opening diameter of a read opening without the read opening contacted with a reading object, in a reader for reading a bar code by irradiating light from a light source to a bar-code label, converging the reflected light through a mirror and a stop by a lens and focusing the converged light on a line image sensor with a shutter, a wavelength detector for detecting a wavelength of the reflected light and a light guide for irradiating light spots indicative of a readable range to the label are provided. Whether a reading state is in a contact reading state in which a read opening contacts the label or in a noncontact reading state in which the read opening separates from the label is determined based on a wavelength of the reflected light detected by the wavelength detector. A light emission quantity and a shutter speed are controlled so as to keep an incident light quantity to the image sensor at an optimum value on a basis of the decided result and reflected light intensity obtained by integrating a line sensor output.
摘要翻译：为了准确地读取光学信息而不是读取开口的开口直径，而读取开口与读取对象接触，在用于通过将来自光源的光照射到条形码标签来读取条形码的读取器中，会聚反射光通过镜子和镜头停止，并将会聚的光聚焦在具有快门的线图像传感器上，用于检测反射光的波长的波长检测器和用于将指示可读范围的光点照射到标签的光导被提供。基于由波长检测器检测到的反射光的波长，读取状态是否处于读取开口接触标签的接触读取状态或读取开口与标签分离的非接触读取状态。控制发光量和快门速度，以便基于所确定的结果和通过对行传感器输出进行积分而获得的反射光强度将图像传感器的入射光量保持在最佳值。

IPRDB

热门服务

关于我们

友情链接

联系方式