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1. 发明申请

US20050236486A1 Electronically-controlled mechanically-damped off-resonant light beam scanning mechanism and code symbol readers employing the same 失效
标题翻译：电子控制的机械阻尼非共振光束扫描机构和采用其的代码符号读取器
公开(公告)号：US20050236486A1
公开(公告)日：2005-10-27
申请号：US11098584
申请日：2005-04-04
申请人： Robert Blake , Charles Naylor , Stephen Colavito , Thomas Amundsen , Thomas Carullo , C. Harry Knowles
发明人： Robert Blake , Charles Naylor , Stephen Colavito , Thomas Amundsen , Thomas Carullo , C. Harry Knowles
IPC分类号： G02B5/08 , G02B26/00 , G06F17/30 , G06K7/10
CPC分类号： G06K7/10643 , G06F17/30879
摘要： Disclosed is laser beam scanning apparatus in the form of an electronically-controlled mechanically-damped off-resonant laser beam scanning mechanism. The scanning mechanism comprises an etched scanning element having a small flexible gap region of closely-controlled dimensions disposed between an anchored base portion and a laser beam deflecting portion The light beam deflecting portion supports a permanent magnet and a light beam deflecting element (e.g., mirror or hologram). A reversible magnetic force field producing device (e.g., an electromagnet) is placed in close proximity with the permanent magnet so that it may be forcibly driven into oscillation in response to electrical current flowing through the electromagnet. The resonant frequency of oscillation of the laser beam deflecting portion relative to the anchored base portion is determined by the closely controlled dimensions of the flexible gap region set during manufacture. The steady-state frequency of oscillation of the laser beam deflecting portion is determined by the frequency of polarity reversal of the electromagnet, which is electronically controlled by the polarity of electrical current supplied thereto. In the illustrative embodiments, the forcing frequency of the electromagnet is selected to be at least ten percent off (i.e., greater or less than) the natural resonant frequency of the laser beam deflecting portion of the scanning element. The steady-state frequency of oscillation can be set at the time of manufacture to be any one of a very large range of values (e.g., 25-127 Hz) for use in both low-speed and high-speed laser scanning systems.
摘要翻译：公开了电子控制机械阻尼非共振激光束扫描机构形式的激光束扫描装置。扫描机构包括蚀刻的扫描元件，其具有设置在锚定的基部和激光束偏转部分之间的紧密控制的尺寸的小的柔性间隙区域。光束偏转部分支撑永磁体和光束偏转元件（例如，镜或全息图）。可逆磁场产生装置（例如，电磁体）被放置成与永磁体紧密相邻，使得其可以响应于流过电磁体的电流被强制地驱动成振荡。激光束偏转部分相对于锚定基部的振荡的谐振频率由制造期间设置的柔性间隙区域的紧密控制的尺寸确定。激光束偏转部的振荡的稳态频率由电磁体的极性反转的频率决定，该电磁体由供给的电流的极性进行电子控制。在说明性实施例中，电磁体的强制频率被选择为扫描元件的激光束偏转部分的固有谐振频率的至少百分之十（即大于或小于）。振荡的稳态频率可以在制造时设定为用于低速和高速激光扫描系统的非常大范围的值（例如，25-127Hz）中的任何一个。

2. 发明申请

US20050001036A1 Bar code symbol reading system employing electronically-controlled raster-type laser scanner for reading bar code symbols during hands-on and hands-free modes of operation 失效
标题翻译：条形码符号读取系统采用电子光栅式激光扫描仪，在实际操作和免提操作模式下读取条码符号
公开(公告)号：US20050001036A1
公开(公告)日：2005-01-06
申请号：US10826677
申请日：2004-04-16
申请人： Robert Blake , Stephen Colavito , Xiaoxun Zhu , Charles Naylor , Thomas Amundsen , Thomas Carullo , C. Knowles
发明人： Robert Blake , Stephen Colavito , Xiaoxun Zhu , Charles Naylor , Thomas Amundsen , Thomas Carullo , C. Knowles
IPC分类号： G06K7/10 , G02B26/00
CPC分类号： G06K7/10851 , G06K7/10574
摘要： A bar code symbol reading system is disclosed comprising a hand-supportable bar code symbol reading device which embodies an electronically-controlled bar code symbol reading engine for producing a raster-type laser scanning pattern in either a hands-free or hands-on mode of operation for scanning 1-D and 2D bar code symbols. The electronically-controlled bar code symbol reading engine has (i) a high-speed/high-resolution raster scanning mode of operation, during which a high-speed, high-resolution raster-type scanning pattern is precisely generated under electronic control, and (ii) a high-speed/low-resolution raster scanning mode of operation during which a high-speed, low-resolution raster-type scanning pattern is precisely generated under electronic control. The electronically-controlled bar code symbol reading engine is induced into its high-speed/high-resolution raster scanning mode of operation when the hand-supportable bar code symbol reading device is removed from its support stand, and into its high-speed/low-resolution raster scanning mode when the hand-supportable bar code symbol reading device is placed into its support stand. The bar code symbol reading engine comprises a pair of mechanically-damped off-resonant laser beam scanning mechanisms that are arranged on a miniature optical bench and electronically-controlled by either a synchronously or synchronously driven drive circuit. When asynchronously driven, the raster laser scanning pattern floats slightly along the y-scanning direction to facilitate reading of 2-D bar code symbols during the hands-on mode of operation.
摘要翻译：公开了一种条形码符号读取系统，其包括手持式条形码符号读取装置，该装置体现电子控制的条形码符号读取引擎，用于以免提或手动模式产生光栅型激光扫描图案扫描一维和二维条形码符号的操作。电子控制条形码符号读取引擎具有（i）高速/高分辨率光栅扫描操作模式，在此期间电子控制下精确地生成高速，高分辨率光栅型扫描图案，以及（ii）高速/低分辨率光栅扫描操作模式，其中在电子控制下精确地产生高速，低分辨率光栅型扫描图案。当手持式条形码符号读取装置从其支撑架移除并进入其高速/低速时，电子控制的条形码符号读取引擎被引入其高速/高分辨率光栅扫描操作模式当手持式条形码符号读取装置放入其支撑架时，分辨率光栅扫描模式。条形码符号读取引擎包括一对机械阻尼的非共振激光束扫描机构，其布置在微型光学平台上并由同步或同步驱动的驱动电路进行电子控制。当异步驱动时，光栅激光扫描图案沿着y扫描方向略微漂浮，以便于在实际操作模式下读取2-D条码符号。

3. 发明申请

US20070012777A1 Planar laser illumination and imaging (PLIIM) systems with integrated despeckling mechanisms provided therein 失效
标题翻译：具有集成解散机制的平面激光照明和成像（PLIIM）系统
公开(公告)号：US20070012777A1
公开(公告)日：2007-01-18
申请号：US11471470
申请日：2006-06-20
申请人： Constantine Tsikos , C. Knowles , Xiaoxun Zhu , Michael Schnee , Ka Au , Allan Wirth , Timothy Good , Andrew Jankevics , Sankar Ghosh , Charles Naylor , Thomas Amundsen , Robert Blake , William Svedas , Shawn Defoney , Edward Skypala , Pirooz Vatan , Russell Dobbs , George Kolis , Mark Schmidt , Jeffery Yorsz , Patrick Giordano , Stephen Colavito , David Wilz , Barry Schwartz , Steven Kim , Dale Fisher , Jon Tassell
发明人： Constantine Tsikos , C. Knowles , Xiaoxun Zhu , Michael Schnee , Ka Au , Allan Wirth , Timothy Good , Andrew Jankevics , Sankar Ghosh , Charles Naylor , Thomas Amundsen , Robert Blake , William Svedas , Shawn Defoney , Edward Skypala , Pirooz Vatan , Russell Dobbs , George Kolis , Mark Schmidt , Jeffery Yorsz , Patrick Giordano , Stephen Colavito , David Wilz , Barry Schwartz , Steven Kim , Dale Fisher , Jon Tassell
IPC分类号： G06K7/10
CPC分类号： G06K7/10 , G02B19/0014 , G02B19/0052 , G02B19/0085 , G02B19/009 , G02B19/0095 , G02B26/10 , G02B27/095 , G02B27/48 , G06K7/10594 , G06K7/10732 , G06K7/146 , G06K9/26 , G06K9/325 , H01S5/005 , H01S5/02248 , H01S5/4025
摘要： Methods of and systems for illuminating objects using planar laser illumination beams having substantially-planar spatial distribution characteristics that extend through the field of view (FOV) of image formation and detection modules employed in such systems. Each planar laser illumination beam is produced from a planar laser illumination beam array (PLIA) comprising an plurality of planar laser illumination modules (PLIMs). Each PLIM comprises a visible laser diode (VLD, a focusing lens, and a cylindrical optical element arranged therewith. The individual planar laser illumination beam components produced from each PLIM are optically combined to produce a composite substantially planar laser illumination beam having substantially uniform power density characteristics over the entire spatial extend thereof and thus the working range of the system. Preferably, each planar laser illumination beam component is focused so that the minimum beam width thereof occurs at a point or plane which is the farthest or maximum object distance at which the system is designed to acquire images, thereby compensating for decreases in the power density of the incident planar laser illumination beam due to the fact that the width of the planar laser illumination beam increases in length for increasing object distances away from the imaging optics. By virtue of the present invention, it is now possible to use both VLDs and high-speed CCD-type image detectors in conveyor, hand-held and hold-under type scanning applications alike, enjoying the advantages and benefits that each such technology has to offer, while avoiding the shortcomings and drawbacks hitherto associated therewith.
摘要翻译：使用具有基本上平面的空间分布特性的平面激光照明光束照射物体的方法和系统，其延伸通过图像形成的视野（FOV）和在这种系统中使用的检测模块。每个平面激光照明光束由包括多个平面激光照射模块（PLIM）的平面激光照射束阵列（PLIA）产生。每个PLIM包括可见激光二极管（VLD，聚焦透镜和与其配置的圆柱形光学元件），由每个PLIM产生的各个平面激光照明光束分量被光学组合以产生具有基本上均匀功率密度的复合基本上平面的激光照明光束优选地，每个平面激光照射光束分量被聚焦，使得其最小光束宽度发生在最远或最大物体距离的点或平面处，在该点或平面处，系统被设计为获取图像，从而补偿入射的平面激光照明光束的功率密度的降低，这是由于平面激光照射光束的宽度在长度上增加以增加远离成像光学元件的物体距离的本发明，现在可以使用两种VLD和高在传送带，手持式和保持型扫描应用中，速度CCD型图像检测器同样享有每种这样的技术所提供的优点和好处，同时避免迄今为止的缺点和缺点。

4. 发明授权

US07124950B2 Bar code symbol reading system employing electronically-controlled raster-type laser scanner for reading bar code symbols during on hands-on and hands-free modes of operation 失效
标题翻译：条形码符号读取系统，采用电子光栅式激光扫描仪，在手动操作和免提操作模式下读取条码符号
公开(公告)号：US07124950B2
公开(公告)日：2006-10-24
申请号：US10826677
申请日：2004-04-16
申请人： Robert E. Blake , Stephen J. Colavito , Xiaoxun Zhu , Charles Naylor , Thomas C. Amundsen , Thomas Carullo , C. Harry Knowles
发明人： Robert E. Blake , Stephen J. Colavito , Xiaoxun Zhu , Charles Naylor , Thomas C. Amundsen , Thomas Carullo , C. Harry Knowles
IPC分类号： G02B5/08
CPC分类号： G06K7/10851 , G06K7/10574
摘要： A bar code symbol reading system is disclosed comprising a hand-supportable bar code symbol reading device which embodies an electronically-controlled bar code symbol reading engine for producing a raster-type laser scanning pattern in either a hands-free or hands-on mode of operation for scanning 1-D and 2D bar code symbols. The electronically-controlled bar code symbol reading engine has (i) a high-speed/high-resolution raster scanning mode of operation, during which a high-speed, high-resolution raster-type scanning pattern is precisely generated under electronic control, and (ii) a high-speed/low-resolution raster scanning mode of operation during which a high-speed, low-resolution raster-type scanning pattern is precisely generated under electronic control. The electronically-controlled bar code symbol reading engine is induced into its high-speed/high-resolution raster scanning mode of operation when the hand-supportable bar code symbol reading device is removed from its support stand, and into its high-speed/low-resolution raster scanning mode when the hand-supportable bar code symbol reading device is placed into its support stand. The bar code symbol reading engine comprises a pair of mechanically-damped off-resonant laser beam scanning mechanisms that are arranged on a miniature optical bench and electronically-controlled by either a synchronously or synchronously driven drive circuit. When asynchronously driven, the raster laser scanning pattern floats slightly along the y-scanning direction to facilitate reading of 2-D bar code symbols during the hands-on mode of operation.
摘要翻译：公开了一种条形码符号读取系统，其包括手持式条形码符号读取装置，该装置体现电子控制的条形码符号读取引擎，用于以免提或手动模式产生光栅型激光扫描图案扫描一维和二维条形码符号的操作。电子控制条形码符号读取引擎具有（i）高速/高分辨率光栅扫描操作模式，在此期间电子控制下精确地生成高速，高分辨率光栅型扫描图案，以及（ii）高速/低分辨率光栅扫描操作模式，其中在电子控制下精确地产生高速，低分辨率光栅型扫描图案。当手持式条形码符号读取装置从其支撑架移除并进入其高速/低速时，电子控制的条形码符号读取引擎被引入其高速/高分辨率光栅扫描操作模式当手持式条形码符号读取装置放入其支撑架时，分辨率光栅扫描模式。条形码符号读取引擎包括一对机械阻尼的非共振激光束扫描机构，其布置在微型光学平台上并由同步或同步驱动的驱动电路进行电子控制。当异步驱动时，光栅激光扫描图案沿着y扫描方向略微漂浮，以便于在实际操作模式下读取2-D条码符号。

5. 发明授权

US06742709B2 Bar code symbol reading system employing electronically-controlled raster-type laser scanner for reading bar code symbols during hands-on and hands-free modes of operation 失效
标题翻译：条形码符号读取系统采用电子光栅式激光扫描仪，在实际操作和免提操作模式下读取条码符号
公开(公告)号：US06742709B2
公开(公告)日：2004-06-01
申请号：US09996079
申请日：2001-11-28
申请人： Robert E. Blake , Stephen J. Colavito , Xiaoxun Zhu , Charles Naylor , Thomas C. Amundsen , Thomas Carullo , C. Harry Knowles
发明人： Robert E. Blake , Stephen J. Colavito , Xiaoxun Zhu , Charles Naylor , Thomas C. Amundsen , Thomas Carullo , C. Harry Knowles
IPC分类号： G06K710
CPC分类号： G06K7/10584
摘要： A bar code symbol reading system is disclosed comprising a hand-supportable bar code symbol reading device which embodies an electronically-controlled bar code symbol reading engine for producing a raster-type laser scanning pattern in either a hands-free or hands-on mode of operation for scanning 1-D and 2D bar code symbols. The electronically-controlled bar code symbol reading engine has (i) a high-speed/high-resolution raster scanning mode of operation, during which a high-speed, high-resolution raster-type scanning pattern is precisely generated under electronic control, and (ii) a high-speed/low-resolution raster scanning mode of operation during which a high-speed, low-resolution raster-type scanning pattern is precisely generated under electronic control. The electronically-controlled bar code symbol reading engine is induced into its high-speed/high-resolution raster scanning mode of operation when the hand-supportable bar code symbol reading device is removed from its support stand, and into its high-speed/low-resolution raster scanning mode when the hand-supportable bar code symbol reading device is placed into its support stand. The bar code symbol reading engine comprises a pair of mechanically-damped off-resonant laser beam scanning mechanisms that are arranged on a miniature optical bench and electronically-controlled by either a synchronously or asynchronously driven drive circuit. When asynchronously driven, the raster laser scanning pattern floats slightly along the y-scanning direction to facilitate reading of 2-D bar code symbols during the hands-on mode of operation.
摘要翻译：公开了一种条形码符号读取系统，其包括手持式条形码符号读取装置，该装置体现电子控制的条形码符号读取引擎，用于以免提或手动模式产生光栅型激光扫描图案扫描一维和二维条形码符号的操作。电子控制条形码符号读取引擎具有（i）高速/高分辨率光栅扫描操作模式，在此期间电子控制下精确地生成高速，高分辨率光栅型扫描图案，以及（ii）高速/低分辨率光栅扫描操作模式，其中在电子控制下精确地产生高速，低分辨率光栅型扫描图案。当手持式条形码符号读取装置从其支撑架移除并进入其高速/低速时，电子控制的条形码符号读取引擎被引入其高速/高分辨率光栅扫描操作模式当手持式条形码符号读取装置放入其支撑架时，分辨率光栅扫描模式。条形码符号读取引擎包括一对机械阻尼非共振激光束扫描机构，其布置在微型光学平台上并由同步或异步驱动的驱动电路进行电子控制。当异步驱动时，光栅激光扫描图案沿着y扫描方向略微漂浮，以便于在实际操作模式下读取2-D条码符号。

6. 发明授权

US06588665B2 Omni-directional tunnel-type laser scanning system for scanning bar code symbols on object surfaces facing any direction within a three-dimensional scanning volume disposed above a conveyor belt 失效
公开(公告)号：US06588665B2
公开(公告)日：2003-07-08
申请号：US09928920
申请日：2001-08-13
申请人： C. Harry Knowles , LeRoy Dickson , Timothy A. Good , Thomas C. Amundsen , Charles Naylor , David Wilz, Sr. , Thomas Carullo
发明人： C. Harry Knowles , LeRoy Dickson , Timothy A. Good , Thomas C. Amundsen , Charles Naylor , David Wilz, Sr. , Thomas Carullo
IPC分类号： G06K710
CPC分类号： G02B26/106 , G02B26/10 , G06K7/10 , G06K7/10564 , G06K7/10584 , G06K7/10594 , G06K7/10603 , G06K7/10663 , G06K7/10673 , G06K7/10693 , G06K7/10702 , G06K7/10792 , G06K7/10801 , G06K7/10811 , G06K7/10851 , G06K7/10861 , G06K7/10871 , G06K7/10881 , G06K7/10891 , G06K7/109 , G06K7/14 , G06K17/0022 , G06K2207/1012 , G06K2207/1013 , G06K2207/1016 , G06K2207/1017 , G06K2207/1018 , G07G1/0045 , G07G1/0054
摘要： A fully automated package identification and measuring system, in which an omni-directional laser scanning systems are used to read bar codes on packages entering the tunnel, while a package dimensioning subsystem is used to capture information about the package prior to entry into the tunnel. Mathematical models are created on a real-time basis for the geometry of the package and the position of the laser scanning beam used to read the bar code symbol thereon. The mathematical models are analyzed to determine if collected and queued package identification data is spatially and/or temporally correlated with package measurement data using vector-based ray-tracing methods, homogeneous transformations, and object-oriented decision logic so as to enable simultaneous tracking of multiple packages being transported through the scanning tunnel.

7. 发明授权

US06360947B1 AUTOMATED HOLOGRAPHIC-BASED TUNNEL-TYPE LASER SCANNING SYSTEM FOR OMNI-DIRECTIONAL SCANNING OF BAR CODE SYMBOLS ON PACKAGE SURFACES FACING ANY DIRECTION OR ORIENTATION WITHIN A THREE-DIMENSIONAL SCANNING VOLUME DISPOSED ABOVE A CONVEYOR BELT 失效
标题翻译：自动基于全息图的隧道式激光扫描系统，用于OGI-DIRECTIONAL扫描条形码符号的封装表面上的任何方向或方位在三维扫描体积以上输送带上
公开(公告)号：US06360947B1
公开(公告)日：2002-03-26
申请号：US09047146
申请日：1998-03-24
申请人： C. Harry Knowles , LeRoy Dickson , Timothy A. Good , Thomas C. Amundsen , Charles Naylor , David Wilz, Sr. , Thomas Carullo
发明人： C. Harry Knowles , LeRoy Dickson , Timothy A. Good , Thomas C. Amundsen , Charles Naylor , David Wilz, Sr. , Thomas Carullo
IPC分类号： G06K810
CPC分类号： G02B26/106 , G02B26/10 , G06K7/10 , G06K7/10564 , G06K7/10584 , G06K7/10594 , G06K7/10603 , G06K7/10663 , G06K7/10673 , G06K7/10693 , G06K7/10702 , G06K7/10792 , G06K7/10801 , G06K7/10811 , G06K7/10851 , G06K7/10861 , G06K7/10871 , G06K7/10881 , G06K7/10891 , G06K7/109 , G06K7/14 , G06K17/0022 , G06K2207/1012 , G06K2207/1013 , G06K2207/1016 , G06K2207/1017 , G06K2207/1018 , G07G1/0045 , G07G1/0054
摘要： A fully automated package identification and measuring system, in which an omni-directional laser scanning system are used to read bar codes on packages entering the tunnel, while a package dimensioning subsystem is used to capture information about the package prior to entry into the tunnel. Mathematical models are created on a real-time basis for the geometry of the package and the position of the laser scanning beam used to read the bar code symbol thereon. The mathematical models are analyzed to determine if collected and queued package identification data is spatially and/or temporally correlated with package measurement data using vector-based ray-tracing methods, homogeneous transformations, and object-oriented decision logic so as to enable simultaneous tracking of multiple packages being transported through the scanning tunnel.
摘要翻译：全自动包装识别和测量系统，其中使用全方位激光扫描系统来读取进入隧道的包装上的条形码，同时使用包装尺寸子系统在进入隧道之前捕获有关包装的信息。数学模型是为了封装的几何形状和用于读取其上的条形码符号的激光扫描光束的位置而实时创建的。对数学模型进行分析，以确定收集的和排队的包裹识别数据是否与包装测量数据在空间和/或时间上相关，使用基于矢量的光线跟踪方法，均匀变换和面向对象的决策逻辑，以便能够同时跟踪多个包裹通过扫描隧道传送。

8. 发明申请

US20070181685A1 Automated package dimensioning subsystem 失效
标题翻译：自动包装尺寸子系统
公开(公告)号：US20070181685A1
公开(公告)日：2007-08-09
申请号：US11520003
申请日：2006-09-12
申请人： Xiaoxun Zhu , Ka Au , Gennady Germaine , George Kolis , Timothy Good , Michael Schnee , Robert Blake , Carl Knowles , Sankar Ghosh , Charles Naylor , David Wilz , Constantine Tsikos , Francis Lodge , Stephen Colavito , George Rockstein
发明人： Xiaoxun Zhu , Ka Au , Gennady Germaine , George Kolis , Timothy Good , Michael Schnee , Robert Blake , Carl Knowles , Sankar Ghosh , Charles Naylor , David Wilz , Constantine Tsikos , Francis Lodge , Stephen Colavito , George Rockstein
IPC分类号： G06K7/10
CPC分类号： B82Y15/00 , G01S7/4817 , G01S7/4818 , G01S17/58 , G01S17/88 , G01S17/89 , G02B26/106 , G06K7/10 , G06K7/10564 , G06K7/10584 , G06K7/10594 , G06K7/10603 , G06K7/10663 , G06K7/10673 , G06K7/10693 , G06K7/10702 , G06K7/10722 , G06K7/10792 , G06K7/10801 , G06K7/10811 , G06K7/10851 , G06K7/10861 , G06K7/10871 , G06K7/10881 , G06K7/10891 , G06K7/109 , G06K7/14 , G06K17/0022 , G06K2207/1013 , G07F11/002 , G07G1/0054 , H01L21/28575 , H01L29/452
摘要： An automated package dimensioning subsystem comprising a Laser Detecting and Ranging (LADAR-based) scanning apparatus for capturing two-dimensional range data maps of the space above a conveyor structure, along which packages are transported, and an image contour tracing apparatus for extracting package dimension data from the two-dimensional range data maps.
摘要翻译：一种包括基于激光检测和测距（LADAR））扫描装置的自动化封装尺寸设计子系统，用于捕获传送结构的空间上的空间的二维范围数据图，以及用于提取封装尺寸的图像轮廓描迹装置来自二维范围数据图的数据。

9. 发明申请

US20070029390A1 Hand-supportable planar laser illumination and imaging (PLIIM) device employing a pair of linear laser diode arrays mounted about a linear image detection array, for illuminating an object to be imaged with a plurality of optically-combined spatially-incoherent planar laser illumination beams (PLIBS) and reducing the speckle-pattern noise power in detected linear images by temporally averaging detected speckle-noise patterns during the photo-integration time period of said linear image detection array 失效
公开(公告)号：US20070029390A1
公开(公告)日：2007-02-08
申请号：US11484369
申请日：2006-07-11
申请人： Constantine Tsikos , Michael Schnee , Xiaoxun Zhu , Thomas Amundsen , Charles Naylor , Russell Dobbs , Carl Knowles
发明人： Constantine Tsikos , Michael Schnee , Xiaoxun Zhu , Thomas Amundsen , Charles Naylor , Russell Dobbs , Carl Knowles
IPC分类号： G06K7/10
CPC分类号： B82Y15/00 , G02B26/10 , G02B26/105 , G02B27/48 , G06K7/10554 , G06K7/10574 , G06K7/10633 , G06K7/10683 , G06K7/10722 , G06K7/10732 , G06K7/10811 , G06K7/10861 , H01S5/02248
摘要： A hand-supportable linear-type planar laser illumination and imaging (PLIIM) based device comprising a linear image formation and detection (IFD) module having a linear array of image detection elements and also image formation optics having a field of view (FOV) focusing a linear image of an object onto the linear array of image detection elements. A pair of planar laser illumination arrays (PLIAs) is arranged on opposite sides of the linear image formation and detection module, and produces a plurality of spatially-incoherent planar laser illumination beam (PLIB) components that are optically combined with respect to other PLIB components so as to produce a composite planar laser illumination beam (PLIB) that is arranged in a coplanar relationship with at least a portion of the FOV. Each PLIA includes a plurality of planar laser illumination modules (PLIMs). Each PLIM includes a laser diode and beam focusing and diverging optics for producing one spatially-incoherent PLIB component. The composite PLIB produces a number of substantially different individual speckle noise patterns at the linear array of image detection elements during the photo-integration time period thereof. The speckle noise power observed at the linear array of image detection elements is reduced through temporal averaging of the individual speckle noise patterns during the photo-integration time period. By virtue of the present invention, it is now possible to use visible laser diodes (VLDs) to produce speckle-reduced images of objects suitable for OCR processing, while enjoying improved working distances offered by planar laser illumination techniques.

10. 发明申请

US20080110993A1 Hand-supportable code symbol reader employing coplanar laser illumination and linear imaging 失效
标题翻译：手持式代码符号读取器采用共面激光照明和线性成像
公开(公告)号：US20080110993A1
公开(公告)日：2008-05-15
申请号：US11974183
申请日：2007-10-11
申请人： Constantine Tsikos , Michael Schnee , Xiaoxun Zhu , Thomas Amundsen , Charles Naylor , Russell Dobbs , Carl Knowles
发明人： Constantine Tsikos , Michael Schnee , Xiaoxun Zhu , Thomas Amundsen , Charles Naylor , Russell Dobbs , Carl Knowles
IPC分类号： G06K7/10
CPC分类号： B82Y15/00 , G02B26/10 , G02B26/105 , G02B27/48 , G06K7/10554 , G06K7/10574 , G06K7/10633 , G06K7/10683 , G06K7/10722 , G06K7/10732 , G06K7/10811 , G06K7/10861 , H01S5/02248
摘要： A hand-supportable coplanar laser illumination and imaging (PLIIM) based code symbol reader includes: a hand-supportable housing having light transmission aperture; a linear image formation and detection module having a linear image detection array; and a planar laser illumination beam (PLIB) producing a coplanar laser illumination and imaging based device having at least one visible laser diode (VLD) for producing a planar light illumination beam (PLIB). The code symbol reader further includes an image grabber for grabbing digital linear images formed and detected by the image formation and detection module, an image data buffer for buffering the digital linear images grabbed by the image grabber, and an image processing computer for processing the buffered digital linear images so as to read code symbols graphically represented in the digital linear images. During object illumination and imaging operations, a controller automatically controls the linear image formation and detection module, the PLIB producing device, the image frame grabber, and the image data buffer.
摘要翻译：基于手持式共面激光照明和成像（PLIIM）的代码符号读取器包括：具有光传输孔径的手持式外壳; 具有线性图像检测阵列的线性图像形成和检测模块; 以及产生具有用于产生平面光照射束（PLIB）的至少一个可见激光二极管（VLD））的共面激光照明和基于成像的装置的平面激光照明光束（PLIB）。代码符号读取器还包括用于抓取由图像形成和检测模块形成和检测的数字线性图像的图像获取器，用于缓冲由图像获取器抓取的数字线性图像的图像数据缓冲器，以及用于处理缓冲的图像处理计算机数字线性图像，以便读取在数字线性图像中图形表示的代码符号。在物体照明和成像操作期间，控制器自动控制线性图像形成和检测模块，PLIB产生装置，图像帧抓取器和图像数据缓冲器。

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