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    • 1. 发明授权
    • System for inspecting pattern defects of printed wiring boards
    • 检查印刷电路板图案缺陷的系统
    • US4799175A
    • 1989-01-17
    • US733506
    • 1985-05-10
    • Tetsuo SanoTetsuo HohkiEiji KodamaTakumi YoshidaMasafumi KawataniHisayuki Tsujinaka
    • Tetsuo SanoTetsuo HohkiEiji KodamaTakumi YoshidaMasafumi KawataniHisayuki Tsujinaka
    • H05K3/00G01B11/24G01B11/245G01B11/30G01B21/30G01N21/88G01N21/956G01R31/28G06T1/00H04N7/00
    • G01R31/2805
    • Printed wiring boards (PWBs) applied to this inspection system are previously formed with marks in prescribed positional relation to wiring patterns. Deviation of PWBs with respect to absolute coordinates of the inspection system is detected by reading the marks. The PWBs are sequentially set one by one on a movable table, to be subjected to image acquisition of the marks and inspected areas. A first PWB is image-acquisited whereby obtained binary image data of the inspected area are stored in a memory unit. Thereafter a second PWB is image-acquisited, and in advance to the image acquisition of its inspected area, relative misregistration of the both PWBs is found by deviation data on respective marks of the first and second PWBs. The binary image data of the first PWB is read from the memory unit on the basis of the binary image data of the second PWB. When the binary image data of the first PWB are read, positional correction, i.e., time base correction is performed on the read data to correspond to pixels of the second PWB under image acquisition on the basis of data on the previously found amount of relative misregistration. The data on corresponding pixels of the both PWBs are compared with each other thereby to inspect difference between the patterns of the PWBs on the basis of the result of the comparison.
    • 应用于该检查系统的印刷电路板(PWB)预先用与布线图案规定的位置关系的标记形成。 通过读取标记来检测PWB相对于检查系统的绝对坐标的偏差。 PWB在可移动台上依次依次设置,对标记和检查区域进行图像采集。 第一PWB被图像采集,由此获得的被检查区域的二进制图像数据被存储在存储单元中。 此后,第二PWB被图像采集,并且预先对其检查区域进行图像采集,通过第一和第二PWB的相应标记上的偏差数据,发现两个PWB的相对重合。 基于第二PWB的二进制图像数据,从存储器单元读取第一PWB的二进制图像数据。 当读取第一PWB的二进制图像数据时,基于关于先前发现的相对重合的数量的数据,对读取的数据执行位置校正,即对于与图像采集期间的第二PWB的像素对应的时基校正 。 将两个PWB的对应像素的数据进行比较,从而根据比较结果来检查PWB的图案之间的差异。
    • 2. 发明授权
    • Image pickup apparatus for a printed wiring board
    • 印刷电路板用图像拾取装置
    • US4682040A
    • 1987-07-21
    • US730797
    • 1985-05-06
    • Tetsuo HohkiTetsuo SanoEiji KodamaHisayuki Tsujinaka
    • Tetsuo HohkiTetsuo SanoEiji KodamaHisayuki Tsujinaka
    • H05K3/00G01B11/24G01N21/88G01N21/956G01R31/28G01R31/309G03B15/02H01L27/14G01N21/47G01N21/55G01N21/89
    • G01N21/88G01R31/2806G01R31/309
    • Disclosed herein is an image pickup apparatus for a printed wiring board comprising a solid state image sensor whose light receiving surface is set to be opposed to the surface of the printed wiring board, a main illumination source arranged to satisfy the law of regular reflection on the surface of the printed wiring board with respect to the light receiving surface of the solid state image sensor and a subsidiary illumination source arranged not to satisfy the law of regular reflection with respect to the light receiving surface of the solid state image sensor thereby to supply the light receiving surface with scattering light by strias formed on copper patterns. The amount of regularly reflected light, which is changed depending on the strias formed on the copper patterns, is substantially compensated by the scattering light, so that the amounts of light received by the solid state image sensor relating to the copper patterns are made substantially constant regardless of the radiation pattern of the strias. In addition, the main and subsidiary illumination sources are formed by light emitting diodes thereby to attain technical and economical advantages.
    • 本文公开了一种用于印刷线路板的图像拾取装置,其包括:固态图像传感器,其受光面设置为与印刷线路板的表面相对;主照明源,其被布置成满足在 印刷电路板相对于固态图像传感器的光接收表面的表面和辅助照明源,其被设置为不满足相对于固态图像传感器的光接收表面的规则反射定律,从而提供 具有散射光的光接收表面在铜图案上形成纹迹。 基于形成在铜图案上的纹线而改变的规则反射光的量基本上被散射光补偿,使得与铜图案相关的固态图像传感器接收的光量基本上恒定 不管纹身的辐射方式如何。 此外,主要和辅助照明源由发光二极管形成,从而获得技术和经济的优点。
    • 5. 发明授权
    • Method for tracing an object
    • 跟踪对象的方法
    • US4441020A
    • 1984-04-03
    • US269952
    • 1981-06-03
    • Takashi SakamotoTetsuo SanoEiji Kodama
    • Takashi SakamotoTetsuo SanoEiji Kodama
    • H04N1/387B23Q35/128G03F1/00G03F1/90G03F9/00G06K11/02G05B1/00
    • B23Q35/128G03F9/00G06K11/02
    • A method for tracing an object such as an outline of a picture or a line image, wherein the object is sensed by a set of sensing elements arranged in an optical head moving along the object, to detect a position and a direction of the object, wherein the optical head is controlled to trace the object depending on the detected position and the direction of the object, and wherein the object is reproduced by reproduction means which is moved in synchronization with the optical head. Present invention improves this method by moving the optical head along portions of the object, which the sensing elements can discriminate hardly or not at all nor follow the object, according to line segment data which is predetermined and represent a plurality of points of coordinates.
    • 一种用于跟踪诸如图片或线条图像的轮廓的对象的方法,其中所述对象由布置在沿着所述对象移动的光学头中的一组感测元件感测,以检测所述对象的位置和方向, 其特征在于,根据检测到的位置和物体的方向,控制光头以跟踪物体,并且其中通过与光头同步地移动的再现装置再现对象。 本发明通过沿着物体的部分移动光学头来改善该方法,根据预定的并表示多个坐标点的线段数据,感测元件根本不能或者根本不能区分对象。
    • 6. 发明授权
    • Cleaning device for intermediate transferring member and image-forming apparatus equipped with the same
    • 用于中间转印件的清洁装置和配备该清洁装置的图像形成装置
    • US08190051B2
    • 2012-05-29
    • US12639418
    • 2009-12-16
    • Tetsuo SanoJunpei ShounoHirofumi Nakagawa
    • Tetsuo SanoJunpei ShounoHirofumi Nakagawa
    • G03G15/16
    • G03G15/161G03G2215/1661
    • A cleaning device for an intermediate transferring member, comprising: a first cleaning roller that is placed so as to rotate while being made in contact with a surface of the intermediate transferring member; a first bias-applying device that applies a bias voltage to the first cleaning roller; a second cleaning roller that is placed so as to rotate while being made in contact with the surface of the intermediate transferring member on a downstream side from the first cleaning roller in a surface-moving direction of the intermediate transferring member; and a second bias-applying device that applies a bias voltage having a polarity different from that of the bias voltage applied by the first bias-applying device to the second cleaning roller, wherein the first cleaning roller is a brush roller, and the second cleaning roller is a foam roller having a foam layer on a surface thereof, with a cell wall face in the foam layer having an opening ratio in a range of 3% or more to 50% or less, and an image-forming apparatus equipped with said cleaning device for an intermediate transferring member.
    • 一种用于中间转印部件的清洁装置,包括:第一清洁辊,其被放置成在与中间转印部件的表面接触的同时旋转; 第一偏置施加装置,其向所述第一清洁辊施加偏置电压; 第二清洁辊,其在与所述中间转印部件的表面在所述中间转印部件的表面移动方向上在与所述第一清洁辊的下游侧接触的同时旋转; 以及第二偏置施加装置,其将具有与由第一偏压施加装置施加的偏置电压的极性不同的偏压施加到第二清洁辊,其中第一清洁辊是刷辊,并且第二清洁 辊是在其表面上具有泡沫层的泡沫辊,泡沫层中的泡孔壁的开口率在3%以上至50%以下的范围内,成像装置配备有 用于中间转印构件的清洁装置。
    • 7. 发明授权
    • Electronic apparatus
    • 电子仪器
    • US07911786B2
    • 2011-03-22
    • US12385403
    • 2009-04-07
    • Tetsuo SanoRyoh Ogata
    • Tetsuo SanoRyoh Ogata
    • H05K7/20
    • H05K7/20418B60R11/02B60R2011/0005
    • An electronic apparatus that includes a circuit substrate being installed in a casing. The electronic apparatus has first and second groove portions that are formed on a first surface and a second surface of a heat sink, respectively. The heat sink discharges heat from a heat element on the circuit substrate to the outside of the casing. The electronic apparatus has a through-hole portion that is formed at an intersection point of the first groove portion formed on the first surface of the heat sink and the second groove portion formed on the second surface of the heat sink.
    • 一种电子设备,包括安装在壳体中的电路基板。 电子设备具有分别形成在散热器的第一表面和第二表面上的第一和第二槽部分。 散热器将热量从电路基板上的热元件排放到壳体的外部。 电子设备具有形成在形成在散热片的第一表面上的第一凹槽部分和形成在散热片的第二表面上的第二凹槽部分的交点处的通孔部分。