发明授权
- 专利标题: Targeting system for a portable image reader
- 专利标题(中): 用于便携式图像读取器的目标系统
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申请号: US11033093申请日: 2005-01-10
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公开(公告)号: US07163150B2公开(公告)日: 2007-01-16
- 发明人: Gregg R. Kricorissian , Xinjun Xie
- 申请人: Gregg R. Kricorissian , Xinjun Xie
- 申请人地址: CA Mississauga
- 专利权人: Psion Teklogix Systems Inc.
- 当前专利权人: Psion Teklogix Systems Inc.
- 当前专利权人地址: CA Mississauga
- 代理机构: Pearne & Gordon LLP
- 主分类号: G06K7/10
- IPC分类号: G06K7/10
摘要:
A targeting system for a portable image reader, which advantageously combines a number of functions including alignment, aiming, framing and range finding and provides a wide imaging range with an optimal field of view, is described. The targeting system projects a predetermined pattern having two or more components onto the target such that the components maintain a uniform distance between one another to bound the target and further vary in size as a function of their distance between the image reader and the target. The targeting system comprises targeting LED's, apertures positioned over the targeting LED's, and cylindrical lenses positioned over the apertures. With this arrangement, at least two vertical lines are projected onto a target such that the lines maintain a uniform distance apart from one another, but vary in length as a function of the reader distance from the target. This allows the operator to quickly position the imaging device over a target.
公开/授权文献
- US20060151608A1 Targeting system for a portable image reader 公开/授权日:2006-07-13
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