公开(公告)号：US5533139A

公开(公告)日：1996-07-02

申请号：US304603

申请日：1994-09-12

Applicant: H. Galen Parker ,  Douglas S. Finnicum ,  Richard D. Young

Inventor： H. Galen Parker ,  Douglas S. Finnicum ,  Richard D. Young

IPC: G01N21/01 ,  G01N21/89 ,  G01N21/892 ,  G01N21/93 ,  G01N21/95 ,  G01N21/00

CPC classification number: G01N21/8422 ,  G01N21/89 ,  G01N21/8903 ,  H04N3/1525 ,  G01N2021/0168 ,  G01N2021/8427 ,  G01N2021/8838 ,  G01N2021/8887 ,  G01N2021/936 ,  G01N2201/102

Abstract: An image processor based system and method are provided for recognizing predefined-types of coating density imperfections in a web. Specific imperfection-types to be analyzed include continuous-type, as well as point-type, anomalies. Continuous-type imperfections are recognized in a moving continuous web through the accumulation and integration of density data on the web passing through a system imaging area. Depending upon the type of imperfection to be imaged, the light source provides either constant illumination or strobed illumination of the moving coated web. For most types of imperfections, transmissive illumination of the web is used, however, for point-type anomalies reflective illumination is possible, particularly if the web is static. A machine vision image processor contains predefined lookup tables which allow adaptive control of web illumination within the imaging area. An integrating sphere is used to provide for uniform web illumination. Corresponding machine vision based imperfection recognition processing routines are also described.

Abstract translation: 提供了基于图像处理器的系统和方法，用于识别网中预定类型的涂层密度缺陷。 要分析的具体缺陷类型包括连续型，以及点型异常。 连续型缺陷可以通过在通过系统成像区域的网络上的密度数据的累积和整合来识别移动的连续网页。 根据要成像的缺陷的类型，光源可提供移动的涂覆幅材的恒定照明或选通照明。 对于大多数类型的缺陷，使用幅材的透射照明，然而，对于点型异常，反射照明是可能的，特别是如果幅材是静态的。 机器视觉图像处理器包含预定义的查找表，其允许对成像区域内的网络照明的自适应控制。 积分球用于提供均匀的网状照明。 还描述了基于机器视觉的不完备识别处理程序。

公开(公告)号：US5412477A

公开(公告)日：1995-05-02

申请号：US18864

申请日：1993-02-17

Applicant: Tomoyuki Kida

Inventor： Tomoyuki Kida

IPC: G01B11/24 ,  G01N21/956 ,  G01R31/311 ,  H01L21/00 ,  H01L21/66 ,  H05K13/08 ,  G06K9/00

CPC classification number: H01L21/67288 ,  G01N21/95684 ,  G01R31/311 ,  H01L21/67271 ,  H01L22/00 ,  H05K13/08 ,  G01N2021/8887 ,  G01N2021/95661 ,  G01N2201/102

Abstract: A lead-bend measuring apparatus comprising: an illuminating device for projecting light onto leads projecting from a package of an integrated circuit device; an imaging device for imaging light reflected from and transmitted through the leads; a cutout device for fetching an image of the imaged light and dividing the image into a plurality of sections; a binarization processing device for processing gradations of the image with different binarization levels for each of the divided sections; a profile counter device for preparing profiles of various portions of the leads corresponding to the respective sections from binarized data subjected to processing by the binarization processing device; a calculating device for calculating a deviation of each of the prepared profiles from a reference profile and determining an amount of bend of each of the leads; and a device for determining a non-defective or defective state by making a comparison between the amount of bend calculated and allowable values. The respective sections are processed by corresponding binarization levels to measure the bend of leads, so that clear binarized images are obtained even if the illuminance of the various portions of the leads is not uniform.

Abstract translation: 一种铅笔测量装置，包括：照明装置，用于将光投射到从集成电路装置的封装突出的引线上; 用于对从所述引线反射并透过所述引线的光成像的成像装置; 用于取出成像光的图像并将图像分割成多个部分的切割装置; 二值化处理装置，用于处理每个分割部分的具有不同二值化级别的图像的灰度; 轮廓计数器装置，用于由二进制化处理装置进行处理的二值化数据，准备对应于各部分的引线的各部分的轮廓; 计算装置，用于计算每个准备的轮廓与参考轮廓的偏差并确定每个引线的弯曲量; 以及通过比较弯曲计算量和允许值之间的比较来确定无缺陷或缺陷状态的装置。 相应的部分通过相应的二值化级别进行处理以测量引线的弯曲，使得即使引线的各个部分的照度不均匀，也可以获得清晰的二值化图像。

公开(公告)号：US5394246A

公开(公告)日：1995-02-28

申请号：US271554

申请日：1994-07-07

Applicant: Kenji Sugawara

Inventor： Kenji Sugawara

IPC: H01L21/60 ,  G01B11/00 ,  G01N21/88 ,  G01R31/28 ,  G01R31/311 ,  H01L21/66

CPC classification number: H01L24/85 ,  G01N21/8806 ,  G01R31/2853 ,  G01R31/311 ,  H01L24/48 ,  H01L24/78 ,  G01N2021/8822 ,  G01N2021/8887 ,  G01N2201/06153 ,  G01N2201/102 ,  H01L2224/05554 ,  H01L2224/05599 ,  H01L2224/45144 ,  H01L2224/48245 ,  H01L2224/48247 ,  H01L2224/48599 ,  H01L2224/73265 ,  H01L2224/78 ,  H01L2224/859 ,  H01L2924/00014 ,  H01L2924/01004 ,  H01L2924/01005 ,  H01L2924/01006 ,  H01L2924/01019 ,  H01L2924/01033 ,  H01L2924/01039 ,  H01L2924/01079 ,  H01L2924/01082 ,  H01L2924/014 ,  H01L2924/3025

Abstract: An apparatus for inspecting wires bonded between the pads of a semiconductor chip and the leads of a lead frame including: an illuminating assembly that emits lights, via LED's that are arranged in a ring-shape, onto the object of inspection such as the ball at the end of a bonded wire; an optical assembly that images the object of inspection which is illuminated by the illumination assembly, and cameras that photograph the image taken in by the optical assembly. When the ball, particularly its shape, is inspected, a dark field illumination circumstance is created by the illuminating assembly so that only the ball can appear bright. In this case, a diaphragm of the optical assembly is also adjusted so as to create a shallow focal depth for the ball.

Abstract translation: 一种用于检查接合在半导体芯片的焊盘和引线框的引线之间的引线的装置，包括：照亮组件，其通过LED被布置成环形，发光到检查对象上，例如球 接合线的末端; 对由照明组件照明的检查对象进行成像的光学组件，以及照相由光学组件拍摄的图像的照相机。 当检查球，特别是其形状时，照明组件产生暗场照明环境，使得只有球可以看起来明亮。 在这种情况下，还调整光学组件的光阑以产生球的浅焦深。

公开(公告)号：US5379329A

公开(公告)日：1995-01-03

申请号：US202169

申请日：1994-02-25

Applicant: Yoshitaka Yaginuma ,  Yoshihiro Inoue

Inventor： Yoshitaka Yaginuma ,  Yoshihiro Inoue

IPC: G01N21/88 ,  G01N21/952 ,  G06T1/00 ,  G06T5/00 ,  G21C17/06 ,  G21C17/00

CPC classification number: G21C17/06 ,  G01N21/8806 ,  G01N2021/8887 ,  G01N2201/102 ,  G21Y2002/202 ,  G21Y2004/403

Abstract: In a method for inspecting a dished end face of a nuclear fuel pellet, a focused beam of light is emitted to a dish of the end face of the nuclear fuel pellet while a parallel beam of light is being emitted to the end face thereof. An image of the end face of the nuclear fuel pellet is picked up and the quality of the pellet is judged based on the picked-up image. An apparatus for inspecting a dished end face of a nuclear fuel pellet is also disclosed. The inspection apparatus includes a handling unit for holding the pellet during inspection, a lighting unit for lighting the end face of the pellet, an image pick-up unit disposed adjacent to the handling unit for picking up image data as to the end face of the pellet, and a judging unit operably connected to the image pick-up unit for analyzing the image data outputted from the image pick-up unit to judge quality of the nuclear fuel pellet. The lighting unit includes emitting optical systems for emitting a focused beam of light to a dish of the end face of the pellet while emitting a parallel beam of light to the entire end face of the pellet.

Abstract translation: 在用于检查核燃料芯块的碟形端面的方法中，将聚焦光束发射到核燃料芯片的端面的盘中，同时将光束发射到其端面。 拾取核燃料颗粒的端面的图像，并且基于所拾取的图像判断颗粒的质量。 还公开了一种用于检查核燃料颗粒的碟形端面的装置。 检查装置包括：检查期间保持颗粒的处理单元，用于点亮颗粒的端面的照明单元;与处理单元相邻设置的摄像单元，用于拾取关于颗粒的端面的图像数据 丸粒和可操作地连接到图像拾取单元的判断单元，用于分析从图像拾取单元输出的图像数据，以判断核燃料颗粒的质量。 照明单元包括发射用于将聚焦光束发射到颗粒的端面的盘的光学系统，同时向颗粒的整个端面发射平行光束。

公开(公告)号：US5317387A

公开(公告)日：1994-05-31

申请号：US807939

申请日：1991-12-16

Applicant: Cornelis G. Van Hengel ,  Hendrik A. Vuil

Inventor： Cornelis G. Van Hengel ,  Hendrik A. Vuil

IPC: B29C70/06 ,  G01N21/17 ,  G01N21/21 ,  G01N21/55 ,  G01N21/88 ,  G01N21/954 ,  G01B11/00

CPC classification number: G01N21/88 ,  G01N2021/8472 ,  G01N2021/8887 ,  G01N2021/9542 ,  G01N2021/9548 ,  G01N2201/102

Abstract: A method for the non-destructive determination of the stacking order and the fiber orientation of a fiber reinforced composite laminate comprises illuminating optically successively a series of spots of a cross sectional surface of the laminate under examination and detecting light radiated from the respective illuminated spots. An electrical output signal relative to the amount of light detected is provided and a characterization of the laminate indicative of the stacking order and fiber orientation is determined from the electrical output signal. An apparatus is provided for carrying out the method of the present invention.

Abstract translation: 用于纤维增强复合层叠体的层叠顺序和纤维取向的无损检测方法包括：光学连续地照射被检查的层叠体的横截面的一系列斑点，并且检测从各个照明点照射的光。 提供了相对于所检测光量的电输出信号，并且根据电输出信号确定表示层叠顺序和纤维取向的层压体的表征。 提供了一种用于实施本发明的方法的设备。

公开(公告)号：US5077475A

公开(公告)日：1991-12-31

申请号：US317643

申请日：1989-03-01

Applicant: Kazuo Moriya ,  Katsuyuki Hirai ,  Mikio Kimura

Inventor： Kazuo Moriya ,  Katsuyuki Hirai ,  Mikio Kimura

IPC: G01N21/35 ,  G01N21/00 ,  G01N21/27 ,  G01N21/3563 ,  G01N21/59 ,  G01N21/84 ,  H01L21/66

CPC classification number: G01N21/59 ,  G01N2021/177 ,  G01N2021/8461 ,  G01N2021/8887 ,  G01N2201/102

Abstract: Disclosed is a quantitative evaluation method of optical absorption image which applies rays of light to a sample to obtain a quantitative optical absorption image without using destructive inspection and which can measure automatically and easily the dispersion of resistivity of the sample by calculating the mean value and standard deviation of the quantitative optical absorption image.

Abstract translation: 公开了一种光学吸收图像的定量评估方法，其将光线施加到样品以获得定量光学吸收图像而不使用破坏性检查，并且可以通过计算平均值和标准自动且容易地测量样品的电阻率分散 定量光吸收图像的偏差。

公开(公告)号：US4988202A

公开(公告)日：1991-01-29

申请号：US372481

申请日：1989-06-28

Applicant: Shree K. Nayar ,  Arthur C. Sanderson ,  Lee E. Weiss ,  David A. Simon

Inventor： Shree K. Nayar ,  Arthur C. Sanderson ,  Lee E. Weiss ,  David A. Simon

IPC: G01N21/956

CPC classification number: G01N21/95684 ,  G01N2021/8887 ,  G01N2021/95646 ,  G01N2201/0826 ,  G01N2201/102

Abstract: The invention is an automated solder joint inspection system for determining the quality of a specular soldered joint through examination of the shape of the joint surface using a series of point light sources and the associated highlight reflections from the joint surface. The light from point light sources, which is directed toward the solder joint, is reflected in a pattern from the solder joint to an array of light responsive transducers from at least one location. Utilizing the intensity values from the light responsive transducer array, the surface orientation of the solder joint at a number of points is determined. The solder joint is evaluated in one of two ways. In one way, using known surface features of solder joints along with curve fitting techniques, a series of grid maps is mathematically interpreted to reconstruct the solder joint surface. A rule-based system, through comparison with acceptable solder joint surface features, evaluates and classifies the joint for an acceptability determination. In another way the surface orientation is used to generate an Extended Gaussian Image of the joint and the features of this are analyzed.

Abstract translation: 本发明是一种自动焊接检查系统，用于通过使用一系列点光源和从关节表面相关联的高光反射来检查接合表面的形状来确定镜面焊接接头的质量。 来自点光源的指向焊接点的光以从焊料接头到至少一个位置的光响应传感器阵列的图案反射。 利用来自光响应传感器阵列的强度值，确定焊点在多个点处的表面取向。 以两种方式之一评估焊点。 以一种方式，使用焊接接头的已知表面特征以及曲线拟合技术，在数学上解释了一系列网格图以重建焊点表面。 基于规则的系统通过与可接受的焊点表面特征进行比较，评估和分类接头以进行可接受性测定。 以另一种方式，表面取向用于生成关节的扩展高斯图像，并分析其特征。

公开(公告)号：US4975568A

公开(公告)日：1990-12-04

申请号：US307288

申请日：1989-02-07

Applicant: Shin ichi Taniguchi ,  Takashi Ohtsuki

Inventor： Shin ichi Taniguchi ,  Takashi Ohtsuki

IPC: G01N21/90

CPC classification number: G01N21/9027 ,  G01N21/9054 ,  G01N2021/8887 ,  G01N2201/102

Abstract: An inspecting apparatus includes an illuminator, a light sensor positioned on one side of the path of movement of containers opposite to the illuminator capable of receiving rays of light which have passed through the container, rays of light reflected fro the container and rays of light travelling straight from the illuminator towards the light sensor within a predetermined region exteriorly of the container, a detector for analyzing the rays of light received by the light sensor, and a light absorbing or shielding member positioned diagonally and to the side of the container as viewed in a direction from the light sensor towards the illuminator. The light absorbing or shielding member shields rays of light reflecting from the surfaces of each of opposite wall portions of the container. Thus, a line of shade corresponding to the contour of the container can be formed on the side of the light sensor for accentuating the boundary between the container, illuminated by the rays of light from the illuminator, and a predetermined region defined exteriorly of the ocntainer by the rays of light travelling striaght towards the light sensor.

公开(公告)号：US4959538A

公开(公告)日：1990-09-25

申请号：US328297

申请日：1989-03-24

Applicant: Nicolaas C. Swart

Inventor： Nicolaas C. Swart

IPC: G01B11/24 ,  G01N21/90

CPC classification number: G01N21/9054 ,  G01N2021/8887 ,  G01N2201/102

Abstract: The mouth edges of a succession of bottles can be inspected using a lighting system for lighting the mouths of each bottle, an optical imaging system for forming an image of the mouth of each bottle, a measuring system for determining the height of the mouth of each successive bottle, and a movable lens in the optical imaging system for compensating for differences in mouth heights of the bottles.

公开(公告)号：US4959537A

公开(公告)日：1990-09-25

申请号：US365934

申请日：1989-06-13

Applicant: Tetsuya Kimoto ,  Masashi Nakagawa

Inventor： Tetsuya Kimoto ,  Masashi Nakagawa

IPC: G01N21/90

CPC classification number: G01N21/90 ,  G01N2021/8887 ,  G01N2201/102

Abstract: A method and apparatus for inspecting a transparent container having a defect on the container bottom by monitoring and analyzing the light energy transmitted through the container bottom. A source of diffused illumination is provided to direct the diffused illumination through the container bottom for monitoring the light energy by camera. The diffused illumination is arranged to be directed in intensity greater through a peripheral region than through a central region of the container bottom so as to positively produce a pair of peak values in light energy distribution received by the camera along at least one dimension corresponding to a line or secant extending in a plane of the container bottom. A corresponding pair of positions having such peak values and spaced along the dimension is obtained as indicative of the opposed peripheral edges of the container bottom, which positions are then processed to provide a true center of the monitored image as corresponding to the center of the container bottom. Based upon thus determined center of the image, it is defined an inspection zone which is in exact coincidence with the actual container bottom and within the confines of which the monitored light energy is analyzed to detect a defect on the container bottom. Thus, the defect inspection can be made free from an erroneous background outside of the container bottom to give a reliable detection of a defect on the container bottom.

Abstract translation: 通过监测和分析透过容器底部的光能来检查在容器底部具有缺陷的透明容器的方法和装置。 提供漫射照明源以引导扩散的照明通过容器底部，以通过照相机监测光能。 扩散照明被布置成通过周边区域强度大于穿过容器底部的中心区域，以便在相机沿着沿着至少一个维度的至少一个维度接收的光能分布中肯定地产生一对峰值 线或割线在容器底部的平面中延伸。 获得具有这样的峰值并且沿尺寸间隔开的相应的一对位置作为容器底部的相对的周边边缘的指示，然后处理这些位置以提供对应于容器的中心的监视图像的真实中心 底部。 基于如此确定的图像中心，它被定义为与实际的容器底部精确重合并且在所监视的光能被分析以限制容器底部的缺陷的范围内的检查区域。 因此，可以使缺陷检查从容器底部以外的错误背景中脱离，从而可靠地检测容器底部的缺陷。