Artificial femoral ball head with multi-layer shell core composite structure

    公开(公告)号:US10327903B2

    公开(公告)日:2019-06-25

    申请号:US15095164

    申请日:2016-04-11

    申请人: Yadong Li Yajun Li

    发明人: Yadong Li Yajun Li

    IPC分类号: A61F2/30 A61F2/36 A61F2/34

    摘要: An artificial femoral ball head having a multilayer shell-core composite structure includes a spherical shell layer, a transition layer and an inner core. The inner core is made of a toughened ceramic, the spherical shell layer is made of a ceramic material, and the transition layer is made of a composite material comprising materials of the inner core and the spherical shell layer. The artificial femoral ball head is manufactured through sintering a green body of successively stacked layers of the spherical shell layer, the transition layer and the inner core, and the green body of successively stacked layers is obtained through a powder co-injection molding process. The spherical shell layer of the artificial femoral head has a high rigidness, corrosion-proof and wear-proof performance. The inner core of the artificial femoral head has a high toughness and shockresistant performance.

    Scanning devices and methods using surface emitting laser diodes
    45.
    发明申请
    Scanning devices and methods using surface emitting laser diodes 审中-公开
    使用表面发射激光二极管的扫描装置和方法

    公开(公告)号:US20080308639A1

    公开(公告)日:2008-12-18

    申请号:US12221848

    申请日:2008-08-07

    IPC分类号: G06K7/10

    CPC分类号: G06K7/10702 G06K7/10742

    摘要: A bar code scanning device, system and method that utilizes one or more vertical cavity surface emitting laser diodes for producing at least one laser beam, where the vertical cavity surface emitting laser diodes are disposed on a substrate, and wherein the produced laser beam is substantially an essential single spatial mode laser beam. The bar code scanning device, system and method of present invention also comprise a photodiode attached to the substrate and arranged to receive at least a portion of the beam of light reflected off the scanned bar code or symbol.

    摘要翻译: 一种条形码扫描装置,系统和方法,其利用一个或多个垂直腔表面发射激光二极管来产生至少一个激光束,其中垂直腔表面发射激光二极管设置在衬底上,并且其中所产生的激光束基本上 一个基本的单一空间模式激光束。 本发明的条形码扫描装置,系统和方法还包括光电二极管,其附接到基板并被布置成接收从扫描的条形码或符号反射的光束的至少一部分。

    Arrangement for generating asymmetrical green laser beam
    46.
    发明授权
    Arrangement for generating asymmetrical green laser beam 失效
    用于产生不对称绿色激光束的布置

    公开(公告)号:US07007848B2

    公开(公告)日:2006-03-07

    申请号:US10640431

    申请日:2003-08-12

    申请人: Yajun Li

    发明人: Yajun Li

    IPC分类号: G06K7/10

    摘要: A green laser beam is generated and is focused and shaped with an asymmetrical beam cross-section in an electro-optical reader for reading indicia. The green laser beam is also used to illuminate an aiming spot or pattern on the indicia prior to reading.

    摘要翻译: 生成绿色激光束并且在用于读取标记的电光读取器中用不对称的光束横截面聚焦和成形。 绿色激光束也用于在阅读前照亮标记上的瞄准点或图案。

    Scan module for a bar code reader with a magnifying lens
    47.
    发明授权
    Scan module for a bar code reader with a magnifying lens 失效
    具有放大镜的条形码读取器的扫描模块

    公开(公告)号:US06879418B2

    公开(公告)日:2005-04-12

    申请号:US10616363

    申请日:2003-07-09

    IPC分类号: G06K7/10 G02B26/08

    CPC分类号: G06K7/10811 G06K7/10653

    摘要: A scan module for use in a bar code reader including a base, a light source, a focusing lens, a scan mirror mounted for oscillatory motion relative to the base so as to create a scanner laser beam, and a magnifying lens for magnifying the angle of reflection of a light beam from the light source off the scan mirror.

    摘要翻译: 一种用于条形码读取器的扫描模块,包括基座,光源,聚焦透镜,安装成相对于基座摆动的扫描镜,以便产生扫描仪激光束;以及放大镜,用于放大角度 反射来自光源的光束离开扫描镜。

    Arrangement for generating asymmetrical green laser beam
    48.
    发明申请
    Arrangement for generating asymmetrical green laser beam 失效
    用于产生不对称绿色激光束的布置

    公开(公告)号:US20050035205A1

    公开(公告)日:2005-02-17

    申请号:US10640431

    申请日:2003-08-12

    申请人: Yajun Li

    发明人: Yajun Li

    IPC分类号: G06K7/10 G06K7/12 G06K9/24

    摘要: A green laser beam is generated and is focused and shaped with an asymmetrical beam cross-section in an electro-optical reader for reading indicia. The green laser beam is also used to illuminate an aiming spot or pattern on the indicia prior to reading.

    摘要翻译: 生成绿色激光束并且在用于读取标记的电光读取器中用不对称的光束横截面聚焦和成形。 绿色激光束也用于在阅读前照亮标记上的瞄准点或图案。

    Electro-optical scanning assembly with conductive flexures
    49.
    发明授权
    Electro-optical scanning assembly with conductive flexures 失效
    电光扫描组件带导电弯曲

    公开(公告)号:US06283372B1

    公开(公告)日:2001-09-04

    申请号:US09379153

    申请日:1999-08-23

    申请人: Yajun Li

    发明人: Yajun Li

    IPC分类号: G02B500

    摘要: A hand-held optical reader for reading printed indicia on a remote target includes a light source for generating a scanning light beam and a detector for detecting the light reflected from the printed indicia. The light source and detector are housed within a housing having a window through which the light beam passes from the source to the target for reflection from the target to the detector. The housing includes parallel front and rear faces, each being generally rectangular in shape and having a lower portion and upper portion. The front and rear faces are joined by a substantially planar base face at their lower edges. The window is disposed in the front face with the reader being ergonomically configured so as be comfortably held in the hand of a user, with the user's palm adjacent the rear face to enable the user to direct the scanning light beam at a remote target.

    摘要翻译: 用于读取远程目标上的打印标记的手持式光学读取器包括用于产生扫描光束的光源和用于检测从打印标记反射的光的检测器。 光源和检测器容纳在具有窗口的外壳内,光源通过该窗口从源极传递到目标,以从目标到检测器的反射。 壳体包括平行的前表面和后表面,每个前表面和后表面的形状大致为矩形,并具有下部和上部。 前表面和后表面在其下边缘处由基本平坦的基面接合。 窗口设置在正面,读取器符合人体工程学设计,以便舒适地保持在使用者的手中,使用者的手掌靠近后表面,以使用户能够将扫描光束引导到远程目标。

    Bar code scanner having a focusing system
    50.
    发明授权
    Bar code scanner having a focusing system 有权
    具有聚焦系统的条形码扫描器

    公开(公告)号:US6065678A

    公开(公告)日:2000-05-23

    申请号:US192032

    申请日:1998-11-13

    申请人: Yajun Li Joseph Katz

    发明人: Yajun Li Joseph Katz

    IPC分类号: G06K7/10

    CPC分类号: G06K7/10742 G06K7/10732

    摘要: A CCD based bar code scanner having a focusing system for assisting an operator in determining a proper relative position between the scanner and the bar code. The scanner also includes an illumination system for illuminating the bar code, a collection system for detecting the light reflected from the illuminated bar code and a processor for processing the detected signals.

    摘要翻译: 一种基于CCD的条形码扫描器,其具有用于辅助操作者确定扫描器和条形码之间的适当相对位置的聚焦系统。 扫描仪还包括用于照亮条形码的照明系统,用于检测从照明条形码反射的光的收集系统和用于处理检测到的信号的处理器。