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公开(公告)号：US4639071A
公开(公告)日：1987-01-27
申请号：US833579
申请日：1986-02-26
申请人： Seikichi Matsumoto , Hiroyuki Ikeda
发明人： Seikichi Matsumoto , Hiroyuki Ikeda
CPC分类号： G02B26/106 , G06K15/1285 , Y10S359/90
摘要： A light scanning apparatus for scanning with a reconstruction beam by shifting a hologram relative to the reconstruction beam, wherein scanning is possible for freely selected curves and/or straight lines with the reconstruction beam, depending upon the ratio, M, of the wavelength of the reconstruction beam to that of the coherent light beam which was used for generating the hologram.
摘要翻译： 一种光扫描装置，用于通过相对于重建光束移动全息图而用重建光束进行扫描，其中根据重建光束的波长的比率M可以扫描对于具有重建光束的自由选择的曲线和/或直线 重建光束到用于产生全息图的相干光束的重建光束。
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公开(公告)号：US4639070A
公开(公告)日：1987-01-27
申请号：US223764
申请日：1981-01-09
CPC分类号： G06K7/10871 , G06K7/10881
摘要： A beam scanning-type information readout device, and more particularly, a hand-carried beam scanning-type information readout device which can read information consisting of a bar-code-symbol applied to a product and which is low in cost, simply operated and very useful and has high readout accuracy. The beam scan type information readout device comprises a laser beam generator, an optical beam scanner which deflects and scans plural beams generated from the laser beam generator or deflects and scans a beam generated from the laser beam generator in plural directions, an optical beam detector which detects the beam reflected from the bar-code-symbol, and a case which functionally and physically accommodates the above-identified elements and also provides a grip portion for the operator.
摘要翻译： 更具体地说，一种光束扫描型信息读取装置，更具体地说，一种手持式扫描型信息读取装置，其可以读取由应用于产品而成本低廉的条形码符号的信息，简单地操作， 非常有用，读出精度高。 光束扫描型信息读取装置包括激光束发生器，偏转和扫描从激光束发生器产生的多个光束的光束扫描器，或者在多个方向上偏转和扫描从激光束发生器产生的光束;光束检测器， 检测从条码符号反射的光束，以及功能和物理地容纳上述元件的壳体，并且还为操作者提供抓握部分。
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