Scanner and method for sweeping a beam across a target
    323.
    发明授权
    Scanner and method for sweeping a beam across a target 有权
    扫描仪和扫描目标对象的方法

    公开(公告)号:US07193758B2

    公开(公告)日:2007-03-20

    申请号:US10007784

    申请日:2001-11-13

    CPC classification number: G06K7/10881 G06K7/10633 G06K7/10643

    Abstract: A scanner such as a bar-code scanner includes a scan-beam generator, a beam reflector having a first magnet, and a beam-sweep mechanism having a second magnet. The beam-sweep mechanism causes the reflector to sweep the scan beam across a target such as a bar-code symbol by exerting a force on the first magnet with the second magnet. In one example, attraction between the magnets holds the reflector steady in a non-sweep position. Conversely, in a sweep position, repulsion between the magnets causes the reflector to oscillate and sweep the scan beam across a target such as a bar-code symbol. Because it does not include a motor for rotating a beam-sweep mirror, the scanner is often smaller and uses less electrical energy than motorized bar-code scanners.

    Abstract translation: 诸如条形码扫描器的扫描器包括扫描光束发生器,具有第一磁体的光束反射器和具有第二磁体的光束扫描机构。 光束扫描机构使得反射器通过用第二磁体施加在第一磁体上的力而将扫描光束扫过诸如条形码符号的目标。 在一个示例中,磁体之间的吸引力将反射器保持在非扫掠位置。 相反,在扫掠位置,磁体之间的排斥使得反射器振荡并扫过扫描光束穿过诸如条形码符号的目标。 因为它不包括用于旋转光束扫描镜的电机,所以扫描器通常较小并且比电动条形码扫描器使用更少的电能。

    Optical scanning system with correction
    324.
    发明授权
    Optical scanning system with correction 有权
    光学扫描系统具有校正功能

    公开(公告)号:US07098871B1

    公开(公告)日:2006-08-29

    申请号:US09400350

    申请日:1999-09-20

    Abstract: A scanning system device has a predetermined aberration as it scans or switches light along selected optical paths. A deformable membrane receives the light and introduces an inverse “aberration” that offsets that of the scanning system. In one embodiment the scanning system includes a torsion arm that supports an oscillatory body. The torsion arm and/or body can be machined from metal, micromachined in silicon or formed in a variety of other ways. Alternatively, the scanning system may include a rotating polygonal scanner or other type of optical scanner. In another approach, an optical switch replaces the scanner.

    Abstract translation: 扫描系统装置在沿着所选光路扫描或切换光时具有预定的像差。 可变形膜接收光并引入抵消扫描系统的“像差”。 在一个实施例中,扫描系统包括支撑振荡体的扭转臂。 扭转臂和/或主体可以由金属加工,微加工成硅或以各种其他方式形成。 或者,扫描系统可以包括旋转多边形扫描仪或其他类型的光学扫描仪。 在另一种方法中,光学开关代替扫描仪。

    Image capture device with projected display
    325.
    发明授权
    Image capture device with projected display 失效
    具有投影显示的图像捕获设备

    公开(公告)号:US07071931B2

    公开(公告)日:2006-07-04

    申请号:US10687414

    申请日:2003-10-14

    Abstract: An image capture device includes provision for projecting indicia onto an object surface. For a scanned beam image capture device, the image may be projected from the scan engine. The light source includes provision for modulating the intensity of its output. A controller modulates the output of the light source according to its position, forming a projected pattern. When the image capture device is an indicia reader such as a linear or 2D bar code scanner, the results of a decode attempt may be used to determine the contents of projected information. When a “no decode” is returned, the user may be prompted to scan again. When a decoded symbol includes directly useful data, all or a portion of the data may be projected. When the data refers to a look-up table, information from the look-up table may be projected. The device may additionally project finder patterns to aid aiming.

    Abstract translation: 图像捕获装置包括用于将标记投影到物体表面上的设置。 对于扫描光束图像捕获设备,可以从扫描引擎投影图像。 光源包括调节其输出强度的规定。 控制器根据其位置调制光源的输出,形成投影图案。 当图像捕获装置是诸如线性或二维条形码扫描仪的标记读取器时,解码尝试的结果可用于确定投影信息的内容。 当返回“否解码”时,可能会提示用户再次扫描。 当解码的符号包括直接有用的数据时,可以投影全部或一部分数据。 当数据参考查找表时,可以投影来自查找表的信息。 设备可以另外投影寻找器图案以辅助瞄准。

    System and method for displaying/projecting a color image
    326.
    发明授权
    System and method for displaying/projecting a color image 失效
    用于显示/投影彩色图像的系统和方法

    公开(公告)号:US06755536B2

    公开(公告)日:2004-06-29

    申请号:US09858285

    申请日:2001-05-15

    CPC classification number: G03B21/28 G03B21/60 H04N9/3129

    Abstract: An image projection system includes an image generator and first and second projection screens. The image generator respectively generates the first and second portions of the image on the first and second projection screens. The first projection screen projects the first portion of the image in a first color, and the second projection screen projects the second portion of the image in a second color. Such an image projection system is often less complex and less expensive than a conventional image projection system such as a projection television system. In addition, such a projection system often provides a higher-quality image than a conventional image projection system.

    Abstract translation: 图像投影系统包括图像发生器和第一和第二投影屏幕。 图像生成器分别在第一和第二投影屏幕上产生图像的第一和第二部分。 第一投影屏幕以第一颜色投影图像的第一部分,并且第二投影屏幕以第二颜色投射图像的第二部分。 这种图像投影系统通常比诸如投影电视系统的传统图像投影系统更不复杂和便宜。 此外,这种投影系统通常提供比传统图像投影系统更高质量的图像。

    Active tuning of a torsional resonant structure
    327.
    发明授权
    Active tuning of a torsional resonant structure 有权
    扭转谐振结构的主动调谐

    公开(公告)号:US06687034B2

    公开(公告)日:2004-02-03

    申请号:US10339953

    申请日:2003-01-10

    Abstract: A MEM s scanning device has a variable resonant frequency. In one embodiment, the MEMs device includes a flexible arm that extends from a oscillatory body. An electrical field applies a force to the flexible arm, thereby bending the flexible arm to shift the moment of inertia of the oscillatory body and a secondary mass carried by the flexible arm. The shifted moment of inertia changes the resonant frequency of the MEMs device. In another embodiment, an absorptive material forms a portion of a torsional arm that supports the oscillatory body. The mechanical properties of the absorptive material can be varied by varying the concentration of a gas surrounding the absorptive material. The varied mechanical properties change the resonant frequency of the scanning device. A display apparatus includes the scanning device and the scanning device scans about two or more axes, typically in a raster pattern. Various approaches to controlling the frequency responses of the scanning device are described, including active control of MEMs scanners and passive frequency tuning.

    Abstract translation: MEM扫描装置具有可变谐振频率。 在一个实施例中,MEM装置包括从振荡体延伸的柔性臂。 电场向柔性臂施加力,由此弯曲柔性臂以使振动体的惯性矩和由柔性臂承载的次级质量移动。 移动的惯性矩改变了MEMs器件的谐振频率。 在另一个实施例中,吸收材料形成支撑振荡体的扭转臂的一部分。 可以通过改变吸收材料周围的气体的浓度来改变吸收材料的机械性能。 不同的机械特性改变了扫描装置的谐振频率。 显示装置包括扫描装置和扫描装置扫描关于两个或多个轴,通常以光栅图案扫描。 描述了控制扫描装置的频率响应的各种方法,包括MEMs扫描器的主动控制和无源频率调谐。

    System and method for using multiple beams to respectively scan multiple regions of an image

    公开(公告)号:US06639719B2

    公开(公告)日:2003-10-28

    申请号:US09858712

    申请日:2001-05-15

    CPC classification number: G02B26/10

    Abstract: An image system includes a screen and a beam generator. The screen has first and second regions with adjustable brightness levels. The beam generator directs first and second electromagnetic off beams and first and second electromagnetic on beams onto the first and second regions, respectively. The first and second off beams respectively change the brightness levels of the first and second regions according to a first polarity, and the first and second on beams change the brightness levels of the first and second regions according to a second polarity. For example, the system may simultaneously scan multiple tiles of an image onto respective regions of the display screen with respective image (on) beams, and erase the regions with respective erase (off) beams. Scanning an image as multiple tiles often provides the image with a higher resolution for a given scan rate, and using on and off beams often increases the quality of the image.

    Frequency tunable resonant scanner and method of making
    329.
    发明授权
    Frequency tunable resonant scanner and method of making 有权
    频率可调共振扫描仪及其制作方法

    公开(公告)号:US06245590B1

    公开(公告)日:2001-06-12

    申请号:US09369674

    申请日:1999-08-05

    Abstract: A MEM s scanning device has a variable resonant frequency. In one embodiment, the MEMs device includes a torsion arm that supports an oscillatory body. In one embodiment, an array of removable masses are placed on an exposed portion of the oscillatory body and selectively removed to establish the resonant frequency. The material can be removed by laser ablation, etching, or other processing approaches. In another approach, a migratory material is placed on the torsion arm and selectively stimulated to migrate into the torsion arm, thereby changing the mechanical properties of the torsion arm. The changed mechanical properties in turn changes the resonant frequency of the torsion arm. In another approach, symmetricaly distributed masses are removed or added in response to a measured resonant frequency to tune the resonant frequency to a desired resonant frequency. A display apparatus includes the scanning device and the scanning device scans about two or more axes, typically in a raster pattern. Various approaches to controlling the frequency responses of the scanning device are described, including active control of MEMs scanners and passive frequency tuning.

    Abstract translation: MEM扫描装置具有可变谐振频率。 在一个实施例中,MEM装置包括支撑摆动体的扭转臂。 在一个实施例中,将可移除质量的阵列放置在振荡体的暴露部分上并选择性地去除以建立谐振频率。 材料可以通过激光烧蚀,蚀刻或其他处理方法去除。 在另一种方法中,将迁移材料放置在扭转臂上并选择性地被刺激以迁移到扭转臂中,从而改变扭转臂的机械特性。 改变的机械性能又改变了扭转臂的共振频率。 在另一种方法中,响应于测量的谐振频率去除或添加对称分布质量,以将谐振频率调谐到期望的谐振频率。 显示装置包括扫描装置和扫描装置扫描关于两个或多个轴,通常以光栅图案扫描。 描述了控制扫描装置的频率响应的各种方法,包括MEMs扫描器的主动控制和无源频率调谐。

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