Retro-reflective scan module for electro-optical readers
    62.
    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
    63.
    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。

    Scanning arrangement for the implementation of scanning patterns over
indicia by driving the scanning elements in different component
directions
    66.
    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。

    Laser projection display
    67.
    发明授权
    Laser projection display 有权
    激光投影显示

    公开(公告)号:US07369584B2

    公开(公告)日:2008-05-06

    申请号:US10883479

    申请日:2004-06-30

    IPC分类号: H01S3/10

    CPC分类号: H04N9/3129

    摘要: A method and apparatus are provided for controlling the operation of a Laser Projection Display (LPD). Generally, the LPD is comprised of a laser, an optical system and a controller. The laser is adapted to emit a beam of laser light. The optical system is adapted to scan the beam of laser light on a display surface in a two-dimensional raster pattern. The controller is adapted to control the rate at which the laser beam is scanned to produce regions of varying resolution on the display surface. The controller is also adapted to present laser light onto the display surface within only selected portions of the two-dimensional raster scan pattern so that spaced apart image regions may be created.

    摘要翻译: 提供了一种用于控制激光投影显示器(LPD)的操作的方法和装置。 通常,LPD由激光器,光学系统和控制器组成。 激光器适于发射激光束。 光学系统适于以二维光栅图案扫描显示表面上的激光束。 控制器适于控制激光束被扫描的速率,以在显示表面上产生不同分辨率的区域。 该控制器还适于在仅在二维光栅扫描图案的选定部分内的显示表面上呈现激光,使得可以产生间隔开的图像区域。

    System and method for auto focusing an optical code reader
    70.
    发明授权
    System and method for auto focusing an optical code reader 有权
    自动对焦光学读码器的系统和方法

    公开(公告)号:US07025272B2

    公开(公告)日:2006-04-11

    申请号:US10389184

    申请日:2003-03-14

    IPC分类号: G03B3/10

    摘要: An optical code reader is provided including imaging circuitry having an array of photo sensing devices capable of sensing light incident on the array and outputting a plurality of pixel signals corresponding to the sensed light. The reader further includes control and logic circuitry for receiving a subset of the plurality of pixel signals, processing the received subset of the plurality of pixel signals for determining if the received pixel signals meet at least one predetermined condition, and outputting a selection control signal in accordance with the processing results. A focus analysis software module executable by the control and logic circuitry determines the focus quality of the received pixel signals. A selector control software module executable by the control and logic circuitry generates a selection control signal in accordance with the determined focus quality of the received pixel signals. Selector circuitry selectively enables the imaging circuitry to output selected pixel signals of the plurality of pixel signals in accordance with the selection control signal.

    摘要翻译: 提供了一种光学代码阅读器,包括具有能够检测入射到阵列上的光并且输出对应于所感测的光的多个像素信号的光敏元件阵列的成像电路。 读取器还包括用于接收多个像素信号的子集的控制和逻辑电路,处理多个像素信号的接收子集,以确定接收的像素信号是否满足至少一个预定条件,并且输出选择控制信号 按照处理结果。 可由控制和逻辑电路执行的焦点分析软件模块确定接收到的像素信号的聚焦质量。 可由控制和逻辑电路执行的选择器控制软件模块根据确定的接收到的像素信号的聚焦质量产生选择控制信号。 选择器电路选择性地使成像电路能够根据选择控制信号输出多个像素信号中的选定像素信号。