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122 条记录 (耗时 0.035 秒)

    Fiber optic barcode reader
    12.
    发明授权
    Fiber optic barcode reader 失效
    光纤条码阅读器

    公开(公告)号：US5404001A

    公开(公告)日：1995-04-04

    申请号：US957845

    申请日：1992-10-08

    申请人： Simon Bard ,  Joseph Katz ,  Miklos Stern ,  Yajun Li

    发明人： Simon Bard ,  Joseph Katz ,  Miklos Stern ,  Yajun Li

    IPC分类号： G06K7/10 ,  G09C5/00

    CPC分类号： G06K7/10653 ,  G06K7/10891 ,  G06K2007/10534 ,  G06K2207/1016

    摘要： The laser diode of an optical scanning system is located in a separate unit and light therefrom carried to a remote scan head via an optical fiber. This reduces the size and weight as well as temperature sensitivity of the scan head. The separate unit may include an optical sensor for detecting light reflected from scanned symbols. If the separate unit houses the sensor, the same fiber or an additional fiber will collect the reflected light and transmit that light back to the sensor. An electromagnetic system produces a scanning motion of the beam emitted by the scan head where the optical fiber is attached to a magnet.

    摘要翻译： 光学扫描系统的激光二极管位于单独的单元中，并且其中的光通过光纤被传送到远程扫描头。 这样可以减小扫描头的尺寸和重量以及温度敏感度。 分离单元可以包括用于检测从扫描符号反射的光的光学传感器。 如果单独的单元容纳传感器，则相同的光纤或附加光纤将收集反射光并将该光传输回传感器。 电磁系统产生由扫描头发射的光束的扫描运动，其中光纤附接到磁体。

    Packaged mirror including mirror travel stops
    13.
    发明授权
    Packaged mirror including mirror travel stops 失效
    包装镜包括镜子行程停止

    公开(公告)号：US6059188A

    公开(公告)日：2000-05-09

    申请号：US631364

    申请日：1996-04-12

    申请人： Costanz.o slashed. diFazio ,  Thomas Mazz ,  Chinh Tan ,  Miklos Stern ,  Henry Grossfeld ,  Paul Dvorkis ,  Peter Fazekas ,  Yajun Li ,  Joseph Katz ,  Askold Strat ,  Greg Martino

    发明人： Costanz.o slashed. diFazio ,  Thomas Mazz ,  Chinh Tan ,  Miklos Stern ,  Henry Grossfeld ,  Paul Dvorkis ,  Peter Fazekas ,  Yajun Li ,  Joseph Katz ,  Askold Strat ,  Greg Martino

    IPC分类号： G06K7/10 ,  H01S5/183 ,  H01S5/42

    CPC分类号： G06K7/10742 ,  G06K7/10574 ,  G06K7/10643 ,  G06K7/10653 ,  G06K7/10702 ,  G06K7/10811 ,  H01S5/005 ,  H01S5/02248 ,  H01S5/183 ,  H01S5/423

    摘要： An integrated optical module for an optical scanner has a lens spaced from a vertical-cavity surface-emitting laser (VCSEL) by a spacer of defined dimensions. The module, in an alternative embodiment, includes a wafer frame, a suspended mirror mounted for oscillation on the frame, a wafer substrate bonded beneath the frame and a wafer cover bonded above the frame. The cover includes a mirror travel stop to protect the mirror against shocks. A VCSEL mounted to the wafer cover produces a beam which is shaped and deflected by a diffractive optical element onto the oscillating mirror. The reflected beam passes out of the module toward an indicia to be read. Large numbers of such devices may be fabricated relatively cheaply using wafer-scale processing and assembly technology. Three large wafers are fabricated corresponding respectively to arrays of substrates, frames and covers. The large wafers are bonded together in a sandwich arrangement, and are then diced to produce the individual scan modules. The modules may provide either one-dimensional or two-dimensional scanning.

    摘要翻译： 用于光学扫描仪的集成光学模块具有通过限定尺寸的间隔件与垂直腔表面发射激光器（VCSEL）间隔开的透镜。 在替代实施例中，该模块包括晶片框架，安装用于在框架上摆动的悬挂镜，结合在框架下方的晶片衬底以及粘结在框架上方的晶片盖。 盖子包括镜子行驶挡板，以防止镜子受到冲击。 安装到晶片盖的VCSEL产生由衍射光学元件成形并偏转到振动反射镜上的光束。 反射光束从模块朝向要读取的标记。 可以使用晶片级处理和组装技术相对便宜地制造大量的这种装置。 制造三个大的晶片，分别对应于基板，框架和盖子的阵列。 大晶片以夹层结构结合在一起，然后被切割以产生各个扫描模块。 模块可提供一维扫描或二维扫描。

    Monitoring light beam position in electro-optical readers and image projectors
    18.
    发明申请
    Monitoring light beam position in electro-optical readers and image projectors 有权
    监控光电读取器和图像投影仪中的光束位置

    公开(公告)号：US20060065735A1

    公开(公告)日：2006-03-30

    申请号：US10956693

    申请日：2004-09-30

    申请人： Yajun Li ,  Paul Dvorkis ,  Dmitriy Yavid ,  Frederick Wood ,  Miklos Stern ,  Edward Barkan ,  Narayan Nambudri

    发明人： Yajun Li ,  Paul Dvorkis ,  Dmitriy Yavid ,  Frederick Wood ,  Miklos Stern ,  Edward Barkan ,  Narayan Nambudri

    IPC分类号： G06K7/10

    CPC分类号： G06K7/10702 ,  G06K7/10683

    摘要： An arrangement for determining light beam position in an electro-optical reader, image projector and like devices includes a drive for moving a scanning light beam at a scan frequency across a target as a scan line, and an electro-optical feedback assembly operatively connected to the drive, for optically detecting scan line position during beam movement, and for generating a feedback signal at the scan frequency, the feedback signal being indicative of the scan line position. A feedback coil in the drive is eliminated to avoid electromagnetic coupling between multiple coils in the drive.

    摘要翻译： 用于确定电光读取器，图像投影仪等装置中的光束位置的装置包括用于以扫描线跨扫描频率移动扫描光束的驱动器，以及电光反馈组件，其可操作地连接到 驱动器，用于在光束移动期间光学检测扫描线位置，并且用于在扫描频率处产生反馈信号，反馈信号指示扫描线位置。 消除驱动器中的反馈线圈，以避免驱动器中多个线圈之间的电磁耦合。

    Optical scanner having a reflected light collector including holographic optical elements
    19.
    发明授权
    Optical scanner having a reflected light collector including holographic optical elements 失效
    具有包括全息光学元件的反射光收集器的光学扫描器

    公开(公告)号：US6029893A

    公开(公告)日：2000-02-29

    申请号：US876681

    申请日：1997-06-17

    申请人： Chinh Tan ,  Yajun Li ,  Miklos Stern

    发明人： Chinh Tan ,  Yajun Li ,  Miklos Stern

    IPC分类号： G06K7/10

    CPC分类号： G06K7/10742 ,  G06K7/10702

    摘要： An optical scanner such as a bar code scanner has a window comprising a holographic optical element through which both the outgoing scanning beam and the returned reflective light passes. The frequency distribution of the element may be chosen to achieve certain desirable characteristics, for example the removal of the dead zone immediately in front of the scanner and control of the beam profile and field of view. The element may be divided up into several separate zones or regions one of which is adapted to control the outgoing beam and the other of which is adapted to receive the incoming reflected light and to focus it onto a photodetector.

    摘要翻译： 诸如条形码扫描器的光学扫描仪具有包括全息光学元件的窗口，射出扫描光束和返回的反射光都通过该全息光学元件。 可以选择元件的频率分布以实现某些期望的特性，例如，立即在扫描仪前移除死区并控制光束轮廓和视场。 元件可以被分成几个单独的区域或区域，其中一个区域或区域适于控制输出光束，并且其中一个适于接收入射的反射光并将其聚焦到光电检测器上。