Reading apparatus with separate illumination and detection optical axes
    1.
    发明授权
    Reading apparatus with separate illumination and detection optical axes 失效
    具有独立照明和检测光轴的阅读设备

    公开(公告)号:US5362953A

    公开(公告)日:1994-11-08

    申请号:US931767

    申请日:1992-08-18

    IPC分类号: G06K7/10

    摘要: An apparatus for reading a bar code symbol with an illumination beam of light. The apparatus includes an integrally formed lens with a first lens surface for transmitting the beam of light toward the bar code symbol along an optical axis and second and third lens surfaces for receiving any of the beam of light that is reflected from the bar code symbol and transmitting the received light along two distinct optical paths to two photodiodes. The two distinct optical paths are separated from each other and not aligned with the optical axis. The configuration of lenses provides an improved depth of field.

    摘要翻译: 一种用于利用照明光束读取条形码符号的装置。 该装置包括具有第一透镜表面的整体形成的透镜,用于沿光轴将光束传送到条形码符号,第二和第三透镜表面用于接收从条形码符号反射的任何光束, 将接收的光沿着两个不同的光路传输到两个光电二极管。 两个不同的光路彼此分离并且不与光轴对准。 透镜的配置提供了改进的景深。

    Tip assembly for a bar code scanner
    2.
    发明授权
    Tip assembly for a bar code scanner 失效
    条形码扫描器的提示组合

    公开(公告)号:US5319184A

    公开(公告)日:1994-06-07

    申请号:US859041

    申请日:1992-03-26

    IPC分类号: G06K7/10 H01J5/16

    CPC分类号: G06K7/10881 G06K7/10762

    摘要: A tip assembly for a bar code scanner having a concentric design which prevents rotational, axial and tilting movement among the components of the tip assembly. A tip housing with an internal detent is snap fitted over a scanner housing having multiple cantilevered, flexible beams, each with a circumferential groove adapted to receive the detent therein. An optical assembly housing containing optics is received within the scanner housing, between the flexible beams thereof. The optical assembly housing has tabs extending outwardly to mate with corresponding recesses in the beams to prevent rotation of the optical assembly relative to the scanner housing. The tip housing is sized to frictionally engage and press the beams inward so they frictionally engage the optical assembly housing. A scanner barrel is positioned about the scanner housing and extends to a position outward of the lip portion of the tip housing to prevent outward travel of the beams, thus locking the tip assembly components securely together.

    摘要翻译: 一种用于具有同心设计的条形码扫描器的尖端组件,其防止尖端组件的部件之间的旋转,轴向和倾斜运动。 具有内部制动器的尖端壳体卡扣在具有多个悬臂的柔性梁的扫描器壳体上,每个具有适于在其中容纳制动器的周向槽。 包含光学元件的光学组件外壳在其柔性梁之间被容纳在扫描器壳体内。 光学组件壳体具有向外延伸的突出部,以与梁中的相应凹部匹配,以防止光学组件相对于扫描器壳体旋转。 尖端壳体的尺寸设计成摩擦地接合并向内按压梁,使得它们摩擦地接合光学组件壳体。 扫描器筒围绕扫描器壳体定位并且延伸到尖端壳体的唇部的外侧的位置以防止光束的向外移动,从而将尖端组件部件牢固地锁定在一起。

    Antenna apparatus for capacitively coupling an antenna ground plane to a
moveable antenna
    3.
    发明授权
    Antenna apparatus for capacitively coupling an antenna ground plane to a moveable antenna 失效
    用于将天线接地平面电容耦合到可移动天线的天线装置

    公开(公告)号:US5440315A

    公开(公告)日:1995-08-08

    申请号:US185717

    申请日:1994-01-24

    IPC分类号: H01Q1/08 H01Q1/24

    CPC分类号: H01Q1/242 H01Q1/084

    摘要: An antenna apparatus for a hand-held symbology reader device having a housing and an elongated one-quarter wavelength antenna. A rotatable coupling member has an L-shaped conductor fixedly and electrically coupled to the antenna by a first end thereof. A second end of the L-shaped conductor is rotatably received by the housing. A ground plane of an electrically conductive material, having a plastic film coated thereon, is positioned within the housing. A washer of an electrically conductive material is electrically coupled to the second end of the L-shaped conductor, and is positioned in face-to-face juxtaposition with a portion of the ground plane. The washer and the portion of the ground plane form a parallel plate capacitor, with the plastic film forming a dielectric therebetween to capacitively couple the ground plane to the antenna. The antenna may be repeatedly rotated from an upright, transmitting/receiving position to a stowed position, without damage to the device or electrical disconnection between the antenna and the ground plane.

    摘要翻译: 一种用于具有壳体和细长四分之一波长天线的手持式符号读取器装置的天线装置。 可旋转的联接构件具有通过其第一端固定地并且电耦合到天线的L形导体。 L形导体的第二端由壳体可旋转地接收。 具有涂覆在其上的塑料膜的导电材料的接地平面位于壳体内。 导电材料的垫圈电耦合到L形导体的第二端,并且与接地平面的一部分面对面并置放置。 垫圈和接地平面的一部分形成一个平行的平板电容器,塑料薄膜在它们之间形成电介质以将接地平面电容耦合到天线。 天线可以从直立的发射/接收位置重复地旋转到收起位置,而不损坏设备或天线与接地平面之间的电断开。

    Connector for a bar code scanner
    5.
    发明授权
    Connector for a bar code scanner 失效
    条形码扫描器连接器

    公开(公告)号:US5342210A

    公开(公告)日:1994-08-30

    申请号:US026265

    申请日:1993-03-04

    IPC分类号: G06K7/10 H01R13/652

    摘要: A connector for connecting internal circuitry of a bar code scanner to a connector plug. One end of a contact assembly is used together with a scanner chassis to form a receptacle for receiving the plug. The other end of the contact assembly connects with the internal circuitry. The contact assembly includes a plurality of wires with a ground wire that is bent to contact a scanner casing upon insertion of the contact assembly into the scanner casing. Two or more of the wires have lateral protrusions extending toward each other to provide points at which arcing is most likely in the event of an increased surge of current. One of the wires with the protrusions is also the wire that is bent outward so that any arcing is grounded to the scanner casing.

    摘要翻译: 用于连接条码扫描器的内部电路和连接器插头的连接器。 接触组件的一端与扫描仪底盘一起使用以形成容纳插头的插座。 接触组件的另一端与内部电路连接。 接触组件包括具有接地线的多根线,当将接触组件插入扫描器壳体时,接地线被弯曲以接触扫描仪外壳。 两个或更多个电线具有朝向彼此延伸的侧向突起,以提供在电流增加的情况下电弧最有可能的点。 具有突起的电线之一也是向外弯曲的线,使得任何电弧接地到扫描器外壳。