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公开(公告)号：US4647143A
公开(公告)日：1987-03-03
申请号：US596704
申请日：1984-04-04
申请人： Kozo Yamazaki , Fumio Yamagishi , Hiroyuki Ikeda , Hiroshi Watanuki , Mitsuharu Ishii , Ichiro Sebata , Takefumi Inagaki
发明人： Kozo Yamazaki , Fumio Yamagishi , Hiroyuki Ikeda , Hiroshi Watanuki , Mitsuharu Ishii , Ichiro Sebata , Takefumi Inagaki
CPC分类号： G06K7/10871
摘要： Light-beam scanning apparatus mainly used for a bar-code reader in a point-of-sale system to identify sold articles. The apparatus includes a light-beam emitting device, a hologram disk having a plurality of hologram segments with different diffraction characteristics mounted along its circumference and being rotated at a predetermined speed, and a deflecting device for directing the emitted light beam from the light-beam emitting device to one side of the hologram disk in a first direction. The scanning apparatus has a first mirror group including a plurality of mirrors placed in a second direction corresponding to the other side of the hologram disk, each of which mirrors is arranged to receive a diffracted light beam from a corresponding hologram segment, and a second mirror group including a plurality of mirrors, each of which mirrors is placed to receive a light beam reflected by a corresponding mirror of the first mirror group and to reflect the incident light beam to a predetermined space positioned in the first direction where an article attached with a bar-code label is moved. In the apparatus, a light path from the other side of the hologram disk to the predetermined space has a predetermined length to form a predetermined scanning light pattern in the space.
摘要翻译： 光束扫描装置主要用于销售点系统中的条形码阅读器，用于识别出售物品。 该装置包括光束发射装置，具有沿其圆周安装并以预定速度旋转的具有不同衍射特征的多个全息片段的全息图盘，以及用于引导来自光束的发射光束的偏转装置 发射器件沿着第一方向到达全息图盘的一侧。 该扫描装置具有第一反射镜组，该第一反射镜组包括放置在与全息图光盘的另一侧相对应的第二方向的多个反射镜，每个反射镜被配置为接收来自对应全息图部分的衍射光束，以及第二反射镜 其包括多个反射镜，每个反射镜被放置成接收由第一反射镜组的相应反射镜反射的光束，并将入射光束反射到位于第一方向上的预定空间， 条形码标签被移动。 在该装置中，从全息盘的另一侧到预定空间的光路具有预定的长度，以在该空间中形成预定的扫描光图案。
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公开(公告)号：US4655541A
公开(公告)日：1987-04-07
申请号：US675870
申请日：1984-11-28
申请人： Kozo Yamazaki , Fumio Yamagishi , Hiroyuki Ikeda , Takefumi Inagaki , Ichiro Sebata , Shunji Kitagawa , Masayuki Kato , Toshiyuki Ichikawa
发明人： Kozo Yamazaki , Fumio Yamagishi , Hiroyuki Ikeda , Takefumi Inagaki , Ichiro Sebata , Shunji Kitagawa , Masayuki Kato , Toshiyuki Ichikawa
CPC分类号： G06K7/10871 , G02B26/106
摘要： A hologram scanner includes a laser source, a rotary body having a rotational axis at least one hologram facet arranged on the rotary body for diffracting a laser beam from the laser source to scan an object and receive the scattered light from the object for detection thereof, a motor means for driving the rotary body, and an optical detector for detecting the scattered light received and diffracted by the hologram facet. The hologram facet is inclined with respect to the rotational axis of the rotary body.
摘要翻译： 全息扫描器包括激光源，旋转体，旋转体具有设置在旋转体上的至少一个全息面，用于衍射来自激光源的激光束扫描物体并接收来自物体的散射光进行检测， 用于驱动旋转体的马达装置和用于检测由全息图面接收和衍射的散射光的光学检测器。 全息小面相对于旋转体的旋转轴线倾斜。
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公开(公告)号：US4848862A
公开(公告)日：1989-07-18
申请号：US105571
申请日：1987-10-08
申请人： Kozo Yamazaki , Toshiyuki Ichikawa , Hiroyuki Ikeda , Takefumi Inagaki , Hirokazu Aritake , Fumio Yamagishi
发明人： Kozo Yamazaki , Toshiyuki Ichikawa , Hiroyuki Ikeda , Takefumi Inagaki , Hirokazu Aritake , Fumio Yamagishi
CPC分类号： G06K7/10871
摘要： A laser beam scanner comprising a scanning window through which scanning beams are emitted, a plurality of hologram layers constituting the scanning window, and an optical system for impinging a laser beam on the hologram layers in a manner such that the trace of the laser beam scanning each hologram layer intersets that of the other hologram layers on the scanning window.
摘要翻译： 一种激光束扫描器，包括扫描光束发射的扫描窗口，构成扫描窗口的多个全息图层以及用于以激光束扫描轨迹的方式将激光束照射在全息图层上的光学系统 每个全息图层与扫描窗口上的其它全息图层的相交。
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公开(公告)号：US4904033A
公开(公告)日：1990-02-27
申请号：US196754
申请日：1988-05-18
申请人： Hiroyuki Ikeda , Fumio Yamagishi , Shinya Hasegawa , Syunji Kitagawa , Kozo Yamazaki , Takefumi Inagaki
发明人： Hiroyuki Ikeda , Fumio Yamagishi , Shinya Hasegawa , Syunji Kitagawa , Kozo Yamazaki , Takefumi Inagaki
CPC分类号： G03H1/0248 , G03H1/202 , G03H1/0005 , G03H1/265 , G03H2001/205 , G03H2001/2615 , G03H2222/36 , G03H2250/12 , Y10S359/90
摘要： A method for constructing a hologram by use of a master hologram which includes a predetermined pattern of interference fringes formed thereon by optical interference of a plurality of constructing coherent light beams incident at different angles. The method includes preparing a photosensitive medium, in which the hologram is to be formed, on the master hologram, and copying the master hologram onto the photo-sensitive medium by impinging copying light beams onto the master hologram at an incident angle different from the angles of the constructing beams.
摘要翻译： 一种通过使用主全息图构成全息图的方法，该主全息图包括通过以不同角度入射的多个构成相干光束的光学干涉在其上形成的干涉条纹的预定图案。 该方法包括在主全息图上制备其中要形成全息图的光敏介质，并通过以不同于角度的入射角照射到主全息图上来将主全息图复制到光敏介质上 的构造梁。
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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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公开(公告)号：US4938550A
公开(公告)日：1990-07-03
申请号：US151616
申请日：1988-02-02
CPC分类号： G02B5/32 , G02B26/0808
摘要： A holographic deflection device having a tunable laser, and at least one hologram for deflecting light incident thereupon from the tunable laser, so that the deflection of the light can be controlled by a change of the wavelength of the beam from the tunable laser.
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公开(公告)号：US4968108A
公开(公告)日：1990-11-06
申请号：US356679
申请日：1989-05-24
CPC分类号： G02B5/32 , G03H1/00 , G03H1/0005 , G03H2001/0413 , G03H2001/186 , G03H2001/2234
摘要： A method for constructing and reconstructing a hologram. The hologram is constructed by irradiating two construction beams having different incidence angles onto a hologram record medium to form interference fringe patterns therein. The hologram is reconstructed by irradiating a reconstruction beam onto the interference fringe patterns so as to diffract the reconstruction beam in accordance with the interference fringe patterns. At least one of the two construction beams irradiates the hologram record medium through at least one optical deviation element. The incidence angle of the reconstruction beam is different from that of each construction beam and is arranged to be nearly a Bragg angle at any point of the hologram.
摘要翻译： 一种构造和重建全息图的方法。 通过将具有不同入射角的两个结构光束照射到全息图记录介质上以在其中形成干涉条纹图案来构造全息图。 通过将重建光束照射到干涉条纹图案上来重建全息图，以便根据干涉条纹图案衍射重建光束。 两个构造束中的至少一个通过至少一个光学偏差元件照射全息图记录介质。 重建梁的入射角不同于每个结构梁的入射角，并且被布置成在全息图的任何点处几乎是布拉格角。
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公开(公告)号：US4824191A
公开(公告)日：1989-04-25
申请号：US173050
申请日：1988-03-28
CPC分类号： G11B7/1353 , G02B5/32 , G11B7/08547 , G11B7/1372
摘要： An optical pickup for reading out information from an information recording media, such as an optical diskette, comprises a light source for irradiating light beam onto an optical diskette, an optical sensor for detecting the light beam reflected at the optical diskette, and an optical system including a wave plate and two hologram lenses. The first hologram lens diffracts the light beam from the light source, and the second hologram lens transmits the same light beam. On the other hand, the second hologram lens diffracts the reflected light beam from the optical diskette toward the optical sensor, and the first hologram lens transmits the same reflected light beam.
摘要翻译： 用于从诸如光盘的信息记录介质读出信息的光学拾取器包括用于将光束照射到光盘上的光源，用于检测在光盘上反射的光束的光学传感器，以及光学系统 包括波片和两个全息图透镜。 第一全息透镜衍射来自光源的光束，第二全息透镜透射相同的光束。 另一方面，第二全息图透镜将来自光盘的反射光衍射到光学传感器，并且第一全息透镜透射相同的反射光束。
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公开(公告)号：US4810046A
公开(公告)日：1989-03-07
申请号：US120727
申请日：1987-11-16
CPC分类号： G06K15/1285 , G02B26/106
摘要： In a light beam scanning apparatus using a hologram rotator, a post-hologram is provided for further diffracting a light beam diffracted by the hologram rotator to a direction opposite to that of the direction in which the light beam is diffracted by the hologram rotator. By combining the kinds of wave fronts used for forming the holograms of the holograms rotator and the post-hologram, the light beam scanning apparatus reduces the deviation of the light beam scanning position caused by the mode hopping of a laser diode, and an improved linear scanning of the light beam and/or image focusing characteristic is obtained.
摘要翻译： 在使用全息图旋转器的光束扫描装置中，提供后全息图，用于进一步将由全息图旋转器衍射的光束衍射到与通过全息图旋转器衍射光束的方向相反的方向。 通过组合用于形成全息图旋转器的全息图和后全息图的波前的种类，光束扫描装置减少了由激光二极管的模式跳变引起的光束扫描位置的偏差，并且改善的线性 获得光束的扫描和/或图像聚焦特性。
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公开(公告)号：US4728186A
公开(公告)日：1988-03-01
申请号：US833276
申请日：1986-02-27
申请人： Shin Eguchi , Seigo Igaki , Hironori Yahagi , Fumio Yamagishi , Hiroyuki Ikeda , Takefumi Inagaki
发明人： Shin Eguchi , Seigo Igaki , Hironori Yahagi , Fumio Yamagishi , Hiroyuki Ikeda , Takefumi Inagaki
CPC分类号： G06K9/00046 , G02B6/26 , G06K9/00899 , G07C9/00158 , G02B6/3522
摘要： An uneven-surface data detection apparatus, includes a transparent plate having an uneven-surface contact portion against which an uneven surface to be detected is pressed. A light source illuminates the uneven-surface contact portion through the transparent plate. An uneven-surface image drawing out optical element draws out the light reflected on the uneven-surface contact portion of the transparent plate. A detector detects the light drawn out from the transparent plate by the optical element.Light reflected by a projection-facing portion of the uneven surface contact portion to be introduced into the detector diverges from a propagation direction of light reflected by a recess-facing portion of the uneven surface contact portion. The optical element is arranged to guide the light reflected by the projection-facing portion into the detector.
摘要翻译： 不平坦面数据检测装置包括具有不平坦面接触部分的透明板，所述不平坦表面被按压到所述不平坦表面的接触部分。 光源通过透明板照亮不平坦表面的接触部分。 引出光学元件的不平坦表面图像抽出在透明板的不平坦表面接触部分上反射的光。 检测器通过光学元件检测从透明板引出的光。 被引入检测器的不平坦表面接触部分的面向投影部分反射的光从不平坦表面接触部分的面向凹部的反射的光的传播方向发散。 光学元件被布置成将由面向投射的部分反射的光引导到检测器中。
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