发明名称 |
IMAGE SENSOR UNIT AND IMAGE READING DEVICE UTILIZING SAME |
摘要 |
A reflection reading light guide that emits light of a reflection reading light source, from a reflected light emission surface to bill S; a transmission reading light guide that emits light of a transmission reading light source, from a transmitted light emission surface to bill S; a rod-lens array that focuses reflected light from the bill S and/or transmitted light transmitted through bill S; a light receiving element that receives light collected by the rod-lens array; and a frame including a housing portion that houses the reflection reading light guide are disclosed. A light blocking portion that protrudes from the reflected light emission surface of the reflection reading light guide toward optical axis Z of the rod-lens array is included in the housing portion, and includes a positioning reference surface for the reflection reading light guide. Influence of stray light is reduced, and accuracy of read image is improved. |
申请公布号 |
KR20140048958(A) |
申请公布日期 |
2014.04.24 |
申请号 |
KR20147003036 |
申请日期 |
2012.08.09 |
申请人 |
CANON COMPONENTS KABUSHIKI KAISHA |
发明人 |
HORIGUCHI TOMOYUKI;YOSHIDA HIDEMASA;FUJIWARA AKIFUMI;TAKAHASHI HIDEHISA |
分类号 |
H04N1/04;G03B27/54;H04N1/028 |
主分类号 |
H04N1/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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