Portable laser diode scanning head having a focusing lens and an aperture
    4.
    发明授权
    Portable laser diode scanning head having a focusing lens and an aperture 失效
    具有聚焦透镜和孔径的便携式激光二极管扫描头

    公开(公告)号:US5247162A

    公开(公告)日:1993-09-21

    申请号:US690705

    申请日:1991-04-24

    IPC分类号: G06K7/10

    摘要: A portable laser diode scanning head, aimable at each symbol to be read, emits and receives non-readily-visible laser light, and is equipped with a trigger-actuated aiming light arrangement for visually locating and tracking each symbol. A compact laser diode optical train and an optical folded path assembly, as well as an interchangeable component design and an integral window construction for the head also are disclosed. Also disclosed is an optic means mounted in the laser diode scanning head including a focusing lens and an aperture stop for forming the emitted laser light to have a beam cross-section of an altered size within a working distance range.

    摘要翻译: 可瞄准要读取的每个符号的便携式激光二极管扫描头发射和接收非易于观察的激光,并且配备有用于可视地定位和跟踪每个符号的触发器致动瞄准灯布置。 公开了一种紧凑型激光二极管光学系统和光学折叠路径组件,以及用于头部的可互换组件设计和整体窗口结构。 还公开了安装在激光二极管扫描头中的光学装置,其包括聚焦透镜和用于形成所发射的激光的孔径光阑,以在工作距离范围内具有改变尺寸的光束横截面。