Retro-reflective scan module for electro-optical readers
    22.
    发明授权
    Retro-reflective scan module for electro-optical readers 失效
    电光读取器的反光扫描模块

    公开(公告)号:US06360949B1

    公开(公告)日:2002-03-26

    申请号:US09275858

    申请日:1999-03-24

    IPC分类号: G06K710

    CPC分类号: G06K7/10653 G06K7/10683

    摘要: A miniaturized electro-optical, retro-reflective scanning module. The module has a base, a first circuit board, and a second circuit board mounted substantially orthogonal to the first circuit board. The base supports a light emitter for producing a scanning beam and optical elements for directing and collecting light energy. The emitted beam reflects off a fold mirror onto a reflector mounted on a drive for oscillation. The oscillating reflector, in turn, redirects the beam onto an indicia being read. The reflected light is reflected off the oscillating reflector and directed to the collection mirror before reaching a detector. The detector included in the module senses light reflected from an indicia scanned by the beam. The reflector is driven by an electro-magnetiz driven system, including a flexure and an actuation arm.

    摘要翻译: 小型化的电光反光扫描模块。 模块具有底座,第一电路板和大致正交于第一电路板安装的第二电路板。 基座支撑用于产生扫描光束的光发射器和用于引导和收集光能的光学元件。 发射的光束从折叠镜反射到安装在用于振荡的驱动器上的反射器上。 振荡反射器又将光束重定向到被读取的标记上。 反射光从振荡反射器反射并在到达检测器之前被引导到收集镜。 包括在模块中的检测器感测由光束扫描的标记反射的光。 反射器由电磁驱动系统驱动,包括挠曲件和致动臂。

    Packaged mirror including mirror travel stops
    25.
    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

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

    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。

    Beam shaping for optical scanners
    26.
    发明授权
    Beam shaping for optical scanners 失效
    光学扫描仪的光束成形

    公开(公告)号:US5742038A

    公开(公告)日:1998-04-21

    申请号:US268982

    申请日:1994-06-30

    摘要: An optical scanner such as a bar code scanner includes a laser diode to create the scanning laser beam. Laser diodes are characteristically astigmatic, and when passed through a rotationally symmetric lens the beam typically forms a waist both in the x (scanning) direction and in the y (perpendicular) direction. The width of the beam envelope in the x direction is adjusted by means of a conventional lens. The width of the beam envelope in the y direction is adjusted by the use of a non-planar mirror, preferably a cylindrical mirror, as the rotating or oscillating element.

    摘要翻译: 诸如条形码扫描器的光学扫描仪包括用于产生扫描激光束的激光二极管。 激光二极管的特征是散光,当通过旋转对称透镜时,光束通常在x(扫描)方向和y(垂直)方向上形成腰部。 通过传统的透镜来调整光束包络线在x方向上的宽度。 通过使用非平面镜(优选圆柱形镜)作为旋转或振荡元件来调节光束包络线在y方向上的宽度。

    Scanning arrangement for the implementation of scanning patterns over
indicia by driving the scanning elements in different component
directions
    30.
    发明授权
    Scanning arrangement for the implementation of scanning patterns over indicia by driving the scanning elements in different component directions 失效
    用于通过在不同的分量方向上驱动扫描元件来实现标记上的扫描图案的扫描装置

    公开(公告)号:US5477043A

    公开(公告)日:1995-12-19

    申请号:US207516

    申请日:1994-04-21

    申请人: Paul Dvorkis

    发明人: Paul Dvorkis

    IPC分类号: G06K7/10

    摘要: A scanning arrangement in a scanner incorporating a scan element which is capable of the repetitive high-speed scanning of indicia having parts of different light reflectivity; for example, such as barcode symbols, and more particularly, pertains to the operation of a scanning arrangement of the type which, at high scanning speeds, will enable the scanning of indicia in variable and specified omni-directional scanning patterns. The variable omni-directional scanning pattern is attained through control over the electrical energy input to a read-start device for activating the scan element of the scanner for vibratory motion between first and second pairs of scan end position, in which the energy input is controlled and varied, and the scan element is rotated, in a manner so as to enable the scan element to implement the aforementioned omni-directional scanning patterns over the indicia.

    摘要翻译: 扫描装置,包括扫描元件,其能够对具有不同光反射率的部分的标记进行重复的高速扫描; 例如,诸如条形码符号,更具体地说,涉及一种扫描装置的操作,该扫描装置可以在高扫描速度下能够以可变和指定的全向扫描图案扫描标记。 通过控制输入到读启动装置的电能来实现可变全向扫描模式,用于激活扫描仪的扫描元件,用于在第一和第二对扫描结束位置之间进行振动运动,其中能量输入被控制 并且以使得扫描元件能够在标记上实现上述全向扫描图案的方式变化,并且扫描元件被旋转。