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51. 发明授权

US09216454B2 Manufacturing method of multilayer shell-core composite structural component 有权
标题翻译：多层壳芯复合结构件的制造方法
公开(公告)号：US09216454B2
公开(公告)日：2015-12-22
申请号：US13878233
申请日：2011-06-29
申请人： Yadong Li , Yajun Li
发明人： Yadong Li , Yajun Li
IPC分类号： B28B1/24 , B22F7/02 , B22F3/10 , B22F3/105 , B22F3/22 , B22F7/06 , B32B18/00 , C04B35/111 , C04B35/119 , C04B35/488 , C04B35/634 , C04B35/638 , C04B35/645 , A61F2/36
CPC分类号： B22F7/02 , A61F2/32 , A61F2/3601 , B22F3/1021 , B22F3/105 , B22F3/12 , B22F3/15 , B22F3/225 , B22F7/008 , B22F7/06 , B32B18/00 , C04B35/111 , C04B35/119 , C04B35/4885 , C04B35/634 , C04B35/638 , C04B35/64 , C04B35/6455 , C04B2235/3225 , C04B2235/3229 , C04B2235/6022 , C04B2235/77 , C04B2235/96 , C04B2237/343 , C04B2237/348 , C04B2237/58 , C04B2237/84
摘要： A manufacturing method of a multilayer shell-core composite structural component comprises the following procedures: (1) respectively preparing feeding material for injection forming of a core layer, a buffer layer and a shell layer, wherein the powders of feeding material of the core layer and the shell layer are selected from one or more of metallic powder, ceramic powder or toughening ceramic powder, and are different from each other, and the powder of feeding material of the buffer layer is gradient composite material powder; (2) layer by layer producing the blank of multilayer shell-core composite structural component by powder injection molding; (3) degreasing the blank; (4) sintering the blank to obtain the multilayer shell-core composite structural component. The multilayer shell-core composite structural component has the advantages of high surface hardness, abrasion resistance, uniform thickness of the shell layer, stable and persistent performance.
摘要翻译：多层壳 - 芯复合结构件的制造方法包括以下步骤：（1）分别制备核心层，缓冲层和壳层的注射成型用原料，其中芯层的供料材料壳层选自金属粉末，陶瓷粉末或增韧陶瓷粉末中的一种以上，彼此不同，缓冲层的供料粉末为梯度复合材料粉末; （2）通过粉末注射成型，逐层生产多层壳 - 芯复合结构件坯料; （3）除油; （4）烧结坯料，得到多层壳 - 芯复合结构件。多层壳芯复合结构件具有表面硬度高，耐磨性好，壳层厚度均匀，性能稳定持久的优点。

52. 发明授权

US06771585B2 Interference of converging spherical waves with application to the design of light-readable information-recording media and systems for reading such media 有权
标题翻译：会聚球面波的干扰应用于光可读信息记录介质的设计和读取这种介质的系统
公开(公告)号：US06771585B2
公开(公告)日：2004-08-03
申请号：US09843343
申请日：2001-04-25
申请人： Yajun Li , Emil Wolf
发明人： Yajun Li , Emil Wolf
IPC分类号： G11B700
CPC分类号： G11B7/24085
摘要： An improved light-readable information recording medium is provided that comprises an optical data storage structure having lands and pits, in which the depth of the pits is about: λ 2 ⁢ n ⁢ ⁢ ⁢ M 1 + m T 2 , wherein &lgr; is the wavelength of light used to read the information recording medium, m is the order of interference selected from a group consisting of odd integers, MT is the transverse magnification, and n is the refractive index encountered by the reading light inside the pits. The invention also provides an improved optical reading system with the parameters satisfying the relationship: nd ≃ λ 2 ⁢ ⁢ m 1 + M T 2 , wherein &lgr; is the wavelength of light used to read the information recording medium, m is the order of interference selected from a group consisting of odd integers, MT is the transverse magnification, n is the refractive index encountered by the reading light inside the pits, and d is the depth of the pits.
摘要翻译：提供了一种改进的光可读信息记录介质，其包括具有凹坑和凹坑的光学数据存储结构，其中凹坑的深度约为：其中λ是用于读取信息记录介质的光的波长，m是从由奇整数组成的组中选择的干扰顺序，MT是横向放大率，n是凹坑内的读取光所遇到的折射率。本发明还提供一种具有满足以下关系的参数的改进的光学读取系统：其中λ是用于读取信息记录介质的光的波长，m是从由奇数整数组成的组中选择的干扰的顺序，MT是横向放大率，n是凹坑内的读取光所遇到的折射率，d是凹坑的深度。

53. 发明授权

US06592040B2 Hand-held bar code reader with single printed circuit board 有权
公开(公告)号：US06592040B2
公开(公告)日：2003-07-15
申请号：US10158091
申请日：2002-05-30
申请人： Edward Barkan , Mark Drzymala , Yajun Li , Henry Grosfeld , Timothy Austin , Vikram Bhargava
发明人： Edward Barkan , Mark Drzymala , Yajun Li , Henry Grosfeld , Timothy Austin , Vikram Bhargava
IPC分类号： G06K710
CPC分类号： G06K7/10653 , G06K7/10851 , G06K7/10881 , G06K7/1098
摘要： A hand-held bar code reader including a housing bounding an interior, a window, a generally planar printed circuit board mounted in the interior, and an optical scanning assembly mounted on the board and including a scanner for directing a light beam through the window at an acute angle relative to the board. A scanning element of the reader is manufactured by spacing a first and second support element apart by a gap bounded by edges of the support elements; injection molding a curable, elastomeric material in flowable form over the edges and into the gap; and allowing the curable, elastomeric material to cure and bond to the edges, and form a flexible hinge in the gap for enabling movement of the support elements relative to one another both away from and toward a stable rest initial position.

54. 发明授权

US5705799A Miniature optical scanning assembly for barcode readers 失效
标题翻译：用于条形码读取器的微型光学扫描组件
公开(公告)号：US5705799A
公开(公告)日：1998-01-06
申请号：US415337
申请日：1996-04-03
申请人： Yajun Li
发明人： Yajun Li
IPC分类号： G06K7/10
CPC分类号： G06K7/10871 , G06K7/10564 , G06K7/10584 , G06K7/10633 , G06K7/10643 , G06K7/10653 , G06K7/10673 , G06K7/10693 , G06K7/10811 , G06K7/10851 , G06K7/10881 , G06K7/10891 , G06K7/109 , G06K7/1098 , G06K7/1478 , G06K2007/10534 , G06K2207/1011 , G06K2207/1013 , G06K2207/1016 , G06K2207/1018
摘要： An optical scanning assembly turns an optical element in opposite circumferential directions about a longitudinal axis along which a light beam from a light source is emitted. The optical element and the light source are mounted on individual supports between which torsion elements are connected. An electrical coil arrangement interacts with a permanent magnet to effect the turning movement.
摘要翻译：光学扫描组件围绕照射来自光源的光束的纵向轴线以相反的圆周方向旋转光学元件。光学元件和光源安装在扭转元件连接在其上的单独的支撑件上。电线圈装置与永磁体相互作用以实现转动运动。

55. 发明授权

US10327903B2 Artificial femoral ball head with multi-layer shell core composite structure 有权
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.

56. 发明申请

US20080308639A1 Scanning devices and methods using surface emitting laser diodes 审中-公开
标题翻译：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
申请人： Miklos Stern , Chinh Tan , Yajun Li , Howard Shepard , Thomas Mazz , Eric Barkan , Vikram Bhargava , Andrew Fusco , Mark Weitzner
发明人： Miklos Stern , Chinh Tan , Yajun Li , Howard Shepard , Thomas Mazz , Eric Barkan , Vikram Bhargava , Andrew Fusco , Mark Weitzner
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。

57. 发明申请

US20070181688A1 Monitoring light beam position in electro-optical readers and image projectors 有权
标题翻译：监控光电读取器和图像投影仪中的光束位置
公开(公告)号：US20070181688A1
公开(公告)日：2007-08-09
申请号：US11593215
申请日：2006-11-06
申请人： Yajun Li , Paul Dvorkis , Dmitriy Yavid , Frederick Wood , Miklos Stern , Edward Barkan , Narayan Nambudri
发明人： Yajun Li , Paul Dvorkis , Dmitriy Yavid , Frederick Wood , Miklos Stern , Edward Barkan , Narayan Nambudri
IPC分类号： G06K7/10
CPC分类号： G06K7/10702 , G06K7/10683
摘要： An arrangement for determining light beam position in an electro-optical reader, image projector and like devices includes a drive for moving a scanning light beam at a scan frequency across a target as a scan line, and an electro-optical feedback assembly operatively connected to the drive, for optically detecting scan line position during beam movement, and for generating a feedback signal at the scan frequency, the feedback signal being indicative of the scan line position. A feedback coil in the drive is eliminated to avoid electromagnetic coupling between multiple coils in the drive.
摘要翻译：用于确定电光读取器，图像投影仪等装置中的光束位置的装置包括用于以扫描线跨扫描频率移动扫描光束的驱动器，以及电光反馈组件，其可操作地连接到驱动器，用于在光束移动期间光学检测扫描线位置，并且用于在扫描频率处产生反馈信号，反馈信号指示扫描线位置。消除驱动器中的反馈线圈，以避免驱动器中多个线圈之间的电磁耦合。

58. 发明授权

US07007848B2 Arrangement for generating asymmetrical green laser beam 失效
标题翻译：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
CPC分类号： G06K7/10831 , G06K7/10732 , G06K7/12
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。

59. 发明申请

US20050035205A1 Arrangement for generating asymmetrical green laser beam 失效
标题翻译：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
CPC分类号： G06K7/10831 , G06K7/10732 , G06K7/12
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。

60. 发明授权

US06283372B1 Electro-optical scanning assembly with conductive flexures 失效
标题翻译：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
CPC分类号： G06K7/10871 , G06K7/10564 , G06K7/10584 , G06K7/10633 , G06K7/10643 , G06K7/10653 , G06K7/10673 , G06K7/10693 , G06K7/10811 , G06K7/10851 , G06K7/10881 , G06K7/10891 , G06K7/109 , G06K7/1098 , G06K7/1478 , G06K2007/10534 , G06K2207/1011 , G06K2207/1013 , G06K2207/1016 , G06K2207/1018
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。

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