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1. 发明申请

US20070138284A1 Planar light illumination and imaging device with modulated coherent illumination that reduces speckle noise induced by coherent illumination 失效
标题翻译：平面光照和具有调制相干照明的成像装置，可减少由相干照明引起的斑点噪声
公开(公告)号：US20070138284A1
公开(公告)日：2007-06-21
申请号：US11603349
申请日：2006-11-21
申请人： Patrick Giordano , Stephen Colavito , Allan Wirth , William Svedas , Timothy Good , Andrew Jankevics , C. Knowles , Constantine Tsikos
发明人： Patrick Giordano , Stephen Colavito , Allan Wirth , William Svedas , Timothy Good , Andrew Jankevics , C. Knowles , Constantine Tsikos
IPC分类号： G06K7/10
CPC分类号： G06K7/10 , H04N1/02865 , H04N1/03
摘要： An imaging device including at least one imaging array and image formation optics that provide a field of view corresponding to the imaging array. At least one illumination module (which includes at least one source of coherent illumination) produces planar light illumination that substantially overlaps the field of view corresponding to the imaging array. Illumination control circuitry modulates the power level of illumination produced by the source of coherent illumination during each photo-integration time period of the imaging array to thereby reduce speckle noise in images captured by the imaging array. The illumination control circuitry preferably modulates the power level of illumination by controlling the number and/or duration of time periods corresponding to different power levels of illumination produced by the source of coherent illumination during each photo-integration time period of the imaging array. Moreover, the illumination control circuitry preferably controls number and/or duration of the time periods such that substantially constant energy is produced by the source of coherent illumination over the time periods (thereby enabling the different speckle patterns produced over the timer periods to optimally cancel each other out).
摘要翻译：一种成像装置，包括至少一个成像阵列和图像形成光学器件，其提供对应于成像阵列的视场。至少一个照明模块（其包括至少一个相干照明源）产生基本上与对应于成像阵列的视野重叠的平面光照射。照明控制电路在成像阵列的每个光积分时间段期间调制由相干照明源产生的照明的功率电平，从而减少由成像阵列捕获的图像中的斑点噪声。照明控制电路优选地通过控制对应于在成像阵列的每个光合成时间段期间由相干照明源产生的不同功率电平的时间段的数量和/或持续时间来调制照明的功率电平。此外，照明控制电路优选地控制时间段的数量和/或持续时间，使得在时间周期上由相干照明源产生基本上恒定的能量（从而使得在定时器周期上产生的不同散斑图案最佳地抵消每个另外出来）。

2. 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。

3. 发明申请

US20050023353A1 Method of and system for acquiring and analyzing information about the physical attributes of objects using planar laser illumination beams, velocity-driven auto-focusing and auto-zoom imaging optics, and height and velocity controlled image detection arrays 失效
标题翻译：使用平面激光照明光束，速度驱动自动聚焦和自动变焦成像光学元件以及高度和速度控制的图像检测阵列获取和分析关于物体的物理属性的信息的方法和系统
公开(公告)号：US20050023353A1
公开(公告)日：2005-02-03
申请号：US10730481
申请日：2003-12-08
申请人： Constantine Tsikos , Michael Schnee , Xiaoxun Zhu , Thomas Amundsen , Charles Naylor , Russell Dobbs , Allan Wirth , Andrew Jankevics , Carl Knowles
发明人： Constantine Tsikos , Michael Schnee , Xiaoxun Zhu , Thomas Amundsen , Charles Naylor , Russell Dobbs , Allan Wirth , Andrew Jankevics , Carl Knowles
IPC分类号： G02B26/10 , G02B27/48 , G06K7/10 , H01S5/022 , H01S5/40 , G06K7/14
CPC分类号： B82Y15/00 , G02B26/10 , G02B27/48 , G06K7/10722 , G06K7/10732 , G06K7/10811 , 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. 发明申请

US20050017074A1 Method of Producing Digital Images of Objects using Planar Laser Illumination Beams and Electronic Image Detection Arrays 失效
标题翻译：使用平面激光照明光束和电子图像检测阵列产生对象的数字图像的方法
公开(公告)号：US20050017074A1
公开(公告)日：2005-01-27
申请号：US10639362
申请日：2003-08-12
申请人： Constantine Tsikos , Michael Schnee , Xiaoxun Zhu , Thomas Amundsen , Charles Naylor , Russell Dobbs , Allan Wirth , Andrew Jankevics , Carl Knowles
发明人： Constantine Tsikos , Michael Schnee , Xiaoxun Zhu , Thomas Amundsen , Charles Naylor , Russell Dobbs , Allan Wirth , Andrew Jankevics , Carl Knowles
IPC分类号： G02B26/10 , G02B27/48 , G06K7/10 , H01S5/022 , H01S5/40 , G06K7/14
CPC分类号： B82Y15/00 , G02B26/10 , G02B27/48 , G06K7/10722 , G06K7/10732 , G06K7/10811 , 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。

5. 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。

6. 发明授权

US4608638A Apparatus for accumulating and permanently storing statistical information 失效
标题翻译：用于累积和永久存储统计信息的装置
公开(公告)号：US4608638A
公开(公告)日：1986-08-26
申请号：US544162
申请日：1983-10-21
申请人： Constantine Tsikos
发明人： Constantine Tsikos
IPC分类号： G07C5/08 , G06F15/20 , G06F13/00
CPC分类号： G07C5/085
摘要： Apparatus is disclosed for accumulating (counting) the occurrences of different types of events (such as trips travelled by an automobile) and storing these counts in substantially permanent form. The apparatus includes a logic element for determining both the occurrence of an event (trip travelled) and the type of event (length of trip), and a non-volatile memory such as a "fusable-link" PROM or UV-erasable PROM, associated with and connected to the logic element, for accumulating and substantially permanently storing the statistical information.
摘要翻译：公开了用于累积（计数）不同类型的事件的发生的装置（例如由汽车行驶的行程），并将这些计数存储为基本上永久的形式。该装置包括用于确定事件的发生（旅行行程）和事件的类型（行程长度）的逻辑元件以及诸如“可熔连接”PROM或UV可擦除PROM的非易失性存储器，与逻辑元件相关联并连接到逻辑元件，用于累积并基本上永久地存储统计信息。

7. 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。

8. 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.

9. 发明授权

US4353056A Capacitive fingerprint sensor 失效
标题翻译：电容式指纹传感器
公开(公告)号：US4353056A
公开(公告)日：1982-10-05
申请号：US156571
申请日：1980-06-05
申请人： Constantine Tsikos
发明人： Constantine Tsikos
IPC分类号： A61B5/117 , G01B7/004 , G01B7/287 , G06K9/00
CPC分类号： A61B5/1172 , G01B7/004 , G01B7/287 , G06K9/0002
摘要： The sensor incorporates a sensing member which has a sensing surface for receiving a fingerprint and sensing means for sensing the ridges and valleys of the skin of the finger under investigation. The sensing member contains a multitude of small capacitors. When the finger is pressed against the sensing surface, the capacitances of the capacitors are locally changed in accordance with the ridges and valleys. The information about the capacitance distribution is transformed into an electric signal.
摘要翻译：传感器包括感测构件，其具有用于接收指纹的感测表面和用于感测被调查的手指的皮肤的脊和谷的感测装置。感测部件包含多个小电容器。当手指按压感测表面时，电容器的电容根据脊和谷部分地局部地改变。关于电容分布的信息被转换成电信号。

10. 发明申请

US20070175999A1 Planar laser illumination and imaging system 有权
标题翻译：平面激光照明和成像系统
公开(公告)号：US20070175999A1
公开(公告)日：2007-08-02
申请号：US11490544
申请日：2006-07-20
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.
摘要翻译：一种手持式线性平面激光照明和成像（PLIIM）设备，包括具有图像检测元件线性阵列的线性图像形成和检测（IFD）模块，以及具有视场聚焦（FOV）聚焦的图像形成光学器件物体的线性图像到图像检测元件的线性阵列上。一对平面激光照明阵列（PLIA）布置在线性图像形成和检测模块的相对侧上，并且产生多个相对于其它PLIB组件光学组合的空间非相干平面激光照明光束（PLIB）部件以便产生与FOV的至少一部分以共面关系布置的复合平面激光照明光束（PLIB）。每个PLIA包括多个平面激光照明模块（PLIM）。每个PLIM包括激光二极管和用于产生一个空间非相干PLIB组件的光束聚焦和发散光学器件。复合PLIB在其光积分时间段期间在图像检测元件的线性阵列处产生许多基本上不同的单个斑点噪声图案。在光积分时间段期间，通过对各个散斑噪声模式的时间平均，减少了在图像检测元件的线性阵列处观察到的斑点噪声功率。凭借本发明，现在可以使用可见激光二极管（VLD）来产生适于OCR处理的物体的散斑图像，同时享受由平面激光照射技术提供的改进的工作距离。

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