公开(公告)号：US5448365A

公开(公告)日：1995-09-05

申请号：US108122

申请日：1993-08-17

Applicant: Gary E. Grollimund ,  Herbert C. Longest, Jr. ,  Barry S. Smith ,  Roy E. VanDerLinden

Inventor： Gary E. Grollimund ,  Herbert C. Longest, Jr. ,  Barry S. Smith ,  Roy E. VanDerLinden

IPC: G01N21/88 ,  A24C5/34 ,  B07C5/342 ,  G01N21/15 ,  G01N21/94 ,  G01N21/952 ,  H04N7/18 ,  G01N21/89

CPC classification number: B07C5/3422 ,  A24C5/3412 ,  B07C5/365 ,  G01N21/952 ,  G01N2021/8887 ,  G01N2201/102

Abstract: Improved systems for optical inspection are provided. The improved systems use modified camera boxes to provide increased, and more uniform, illumination of the objects being inspected through the use of illuminator windows. The lens arrangement of the improved camera boxes is contained within a self-contained, sealed housing that is separate from the camera to prevent particle contamination of the lens arrangement and provide improved flexibility during installation of the camera boxes on the inspection systems. The self-contained housing also provides for a reduction in the space required for the camera boxes. The light receiver of the housing is provided with the capability for preventing particle contamination of the receiver itself.

Abstract translation: 提供了改进的光学检测系统。 改进的系统使用改进的相机盒来通过使用照明器窗口来提供被检查物体的增加的和更均匀的照明。 改进的相机盒的透镜布置被包含在与相机分离的独立的密封壳体中，以防止透镜装置的颗粒污染并且在将相机盒安装在检查系统上时提供改进的灵活性。 独立的外壳还可以减少相机盒所需的空间。 壳体的光接收器具有防止接收器本身的颗粒污染的能力。

公开(公告)号：US5353357A

公开(公告)日：1994-10-04

申请号：US985875

申请日：1992-12-04

Applicant: H. Cary Longest, Jr. ,  Barry S. Smith

Inventor： H. Cary Longest, Jr. ,  Barry S. Smith

IPC: G01B11/30 ,  A24C5/34 ,  G01B11/24 ,  G01N21/89 ,  G01N21/952 ,  G06T1/00 ,  G06T7/00 ,  G06K9/00

CPC classification number: G06T7/0006 ,  A24C5/3412 ,  G01N21/952 ,  G01N2021/8887 ,  G01N2201/102 ,  G06T2207/30108

Abstract: Substantially circular objects such as the ends of the filters of filter tipped cigarettes are inspected to make sure they have an acceptable appearance. The object surface to be inspected is preferably cantilevered out from the object supporting structure, and any surface of the supporting structure which faces in the same direction as the object surface is preferably made visually contrasting with the object surface. The object surface is preferably illuminated obliquely and at an angle to the axis along which an image of the object is formed. The image is subjected to "blob" analysis to determine whether it has an acceptable appearance. Objects which do not have an acceptable appearance are rejected. A sophisticated user interface provides substantial information to an operator of the system.

Abstract translation: 检查过滤嘴香烟过滤器的端部等基本圆形的物体，以确保其具有可接受的外观。 待检查的物体表面优选地从物体支撑结构悬伸出来，并且支撑结构的面向与物体表面相同方向的任何表面优选地与物体表面形成视觉上的对比。 物体表面优选地倾斜地并且与形成物体的图像的轴成一定角度。 图像进行“斑点”分析以确定其是否具有可接受的外观。 没有可接受外观的物体被拒绝。 复杂的用户界面向系统的操作员提供实质的信息。

公开(公告)号：US5305392A

公开(公告)日：1994-04-19

申请号：US2892

申请日：1993-01-11

Applicant: H. Cary Longest, Jr. ,  Robert H. Moffitt ,  W. Randolph Sweeney

Inventor： H. Cary Longest, Jr. ,  Robert H. Moffitt ,  W. Randolph Sweeney

IPC: B41F33/00 ,  G01N21/89 ,  G01N21/93 ,  G01N21/956 ,  G06K9/00

CPC classification number: B41F33/0036 ,  G01N21/89 ,  G01N2021/8861 ,  G01N2021/8887 ,  G01N2021/936 ,  G01N21/956 ,  G01N2201/102

Abstract: A modular system and method using the system for the high speed high resolution inspection of printed webs are provided. Each module inspects one lane of a printed web for print defects. Each gray scale or bipolar gray scale gradient pixel value of a digitally converted input image is compared to the minimum and maximum threshold values of the image template by a real-time digital signal processor. The image template is created in a secondary non-real-time processor by producing a statistical representation of a number of input images. The image template is desensitized to longitudinal and transverse jitter of the printed web so that jitter is not identified by the system as a print defect. The user is signaled if actual print defects exist and the lanes in which the defects exist are identified.

Abstract translation: 提供了一种使用该系统进行印刷网的高速高分辨率检查的模块化系统和方法。 每个模块检查印刷网的一个通道是否有打印缺陷。 通过实时数字信号处理器将数字转换的输入图像的每个灰度级或双极性灰度级梯度像素值与图像模板的最小和最大阈值进行比较。 通过产生多个输入图像的统计表示，在次要非实时处理器中创建图像模板。 图像模板对印刷的卷材的纵向和横向抖动敏感，使得抖动不被系统识别为打印缺陷。 如果存在实际的打印缺陷并识别存在缺陷的通道，则用户被通知。

公开(公告)号：US5276546A

公开(公告)日：1994-01-04

申请号：US945526

申请日：1992-09-16

Applicant: Steven G. Palm ,  Elwin M. Beaty

Inventor： Steven G. Palm ,  Elwin M. Beaty

IPC: G01B11/02 ,  G01N21/88 ,  G01N21/93 ,  G01N21/956 ,  G02B26/10 ,  H04N1/19 ,  G02B26/08

CPC classification number: G02B26/101 ,  G01B11/02 ,  G01N21/88 ,  G01N2021/8887 ,  G01N2021/95638 ,  G01N21/93 ,  G01N2201/102 ,  G01N2201/1053 ,  Y10S359/90

Abstract: A part scanning and part calibration method for the inspection of printed circuit boards and integrated circuits includes a camera and two rotating mirrors to scan an image of a pattern mask retical upon which a precise pattern has been deposited. Small parts are placed upon the retical to be inspected. The third overhead mirror is provided to view the part under inspection from another perspective. The scene of the part is triangulated and the dimensions of the system can thus be calibrated. A precise retical mask is provided with dot patterns which provide an additional set of information needed for calibration. By scanning more than one dot pattern the missing state values can be resolved using an iterative trigonomic solution.

Abstract translation: 用于检查印刷电路板和集成电路的部件扫描和部件校准方法包括相机和两个旋转镜，用于扫描已经沉积精确图案的图案掩模图案的图像。 小部件放置在被检查的retical上。 提供第三顶置反射镜以从另一个角度来观察被检查的部件。 该部件的场景是三角形的，因此可以校准系统的尺寸。 提供了精确的掩模掩模，其具有提供校准所需的另外一组信息的点图案。 通过扫描多个点阵图，可以使用迭代的三叉型解决方案来解决缺失的状态值。

公开(公告)号：US5228462A

公开(公告)日：1993-07-20

申请号：US889457

申请日：1992-05-27

Applicant: Jerome S. Osmalov ,  Bhanu M. Evani ,  Herbert C. Longest, Jr.

Inventor： Jerome S. Osmalov ,  Bhanu M. Evani ,  Herbert C. Longest, Jr.

IPC: A24C5/34 ,  B07C5/342

CPC classification number: B07C5/3422 ,  A24C5/3412 ,  G01N2021/8887 ,  G01N2201/102 ,  Y10S131/905 ,  Y10S131/908

Abstract: Inspection of completed cigarettes is accomplished by the cigarettes traveling on a rolling drum past a single stationary rolling block with preferably two cameras connected to a vision system. The first camera views the cigarette before the rolling block, the cigarette is then rolled approximately 180.degree. and then the second camera views the previously hidden portion of the cigarette. Cigarettes are accepted or rejected based on a comparison of the viewed cigarettes to a predetermined set of characteristics.

Abstract translation: 完成的香烟的检查是通过在滚动鼓上行进的香烟通过连接到视觉系统的优选两个相机的单个固定滚动块来完成的。 第一台相机在卷轴前观察香烟，然后卷烟约180度，然后第二台相机查看以前隐藏的香烟部分。 基于所查看的香烟与预定的一组特征的比较，香烟被接受或拒绝。

公开(公告)号：US5196716A

公开(公告)日：1993-03-23

申请号：US702087

申请日：1991-05-17

Applicant: Kazuo Moriya ,  Hideo Wada ,  Katsuyuki Hirai

Inventor： Kazuo Moriya ,  Hideo Wada ,  Katsuyuki Hirai

IPC: G01N21/88 ,  G01N21/00 ,  G01N21/35 ,  G01N21/3563 ,  G01N21/359 ,  G01N21/39 ,  G01N21/95 ,  G01N21/956 ,  H01L21/66

CPC classification number: G01N21/9505 ,  G01N2021/1782 ,  G01N2021/393 ,  G01N2021/4735 ,  G01N2021/8887 ,  G01N2021/8896 ,  G01N2201/102

Abstract: A method for measuring internal defects of a specimen, comprising the steps of allowing a finely focused laser beam to be incident into a specimen from its surface and observing the scattered light of the said laser beam from inside the said specimen from the surface of the specimen and in a different direction to the optical axis of incidence of the laser beam.

公开(公告)号：US5047851A

公开(公告)日：1991-09-10

申请号：US485133

申请日：1990-02-26

Applicant: Kurt Sauerwein ,  Hans P. Busse ,  Rainer Link ,  Helmut Wiacker ,  Christian Stapf ,  Rudiger Schulz ,  Ekhard Stolzenberg ,  Kurt Disselhorst ,  Herbert Burghoff ,  Karl Kirchesch ,  James D. Lean ,  Laurence F. Topping ,  Wolfgang Zindler

Inventor： Kurt Sauerwein ,  Hans P. Busse ,  Rainer Link ,  Helmut Wiacker ,  Christian Stapf ,  Rudiger Schulz ,  Ekhard Stolzenberg ,  Kurt Disselhorst ,  Herbert Burghoff ,  Karl Kirchesch ,  James D. Lean ,  Laurence F. Topping ,  Wolfgang Zindler

IPC: G01N21/88 ,  G01N21/91 ,  G01N21/93 ,  G01N27/84

CPC classification number: G01N21/91 ,  G01N21/93 ,  G01N27/84 ,  G01N2021/8887 ,  G01N2021/8896 ,  G01N2021/936 ,  G01N2201/102

Abstract: A process and device for detecting and evaluating surface cracks in workpieces wherein a picture is produced of the surface of the workpiece by means of a video camera and said picture is digitized and is processed by means of a computer to produce a binary picture of any cracks present and a sorting report is triggered when a preselected threshold level is exceeded. In order to obtain a sorting signal that is independent of the absolute brightness of the original picture a blurred background picture is derived from the original picture levels that have been converted to digitized grey shade levels and subtracted from the original picture, the difference picture formed in this way giving the crack representation. A dynamic threshold level for the sorting signal is determined by comparing the grey shade distribution of the original or the difference picture with at least one previously evaluated or difference picture and a binary picture is produced from the original or the difference picture and the grey shade threshold, and picture elements with their gray shades exceeding the set threshold are indicated as defects. The surface of the workpiece may be pre-treated by the magnetic powder or dye penetration process and/or contrast intensifying means.

Abstract translation: 一种用于检测和评估工件中的表面裂纹的工艺和装置，其中通过摄像机产生工件表面的图像，并且所述图像被数字化，并且通过计算机进行处理以产生任何裂缝的二进制图像 当超过预先选择的阈值水平时触发排序报告。 为了获得独立于原始图像的绝对亮度的分类信号，从已被转换成数字化灰度级并从原始图像中减去的原始图像级别导出模糊背景图像，形成在 这样给出裂纹表示。 通过将原始或差分图像的灰度分布与至少一个先前评估的或差分图像进行比较来确定分类信号的动态阈值水平，并且从原始图像或差分图像和灰度阈值产生二值图像 ，其灰度超过设定阈值的图像元素被表示为缺陷。 可以通过磁粉或染料渗透过程和/或对比增强装置对工件的表面进行预处理。

公开(公告)号：US5017795A

公开(公告)日：1991-05-21

申请号：US519322

申请日：1990-05-07

Applicant: Roger G. Dower ,  Robert W. Acres ,  Harold R. Davis ,  Andrew N. Donham ,  Nader Riahi ,  Richard W. A. Slamka ,  Lechoslaw K. Urbaniak

Inventor： Roger G. Dower ,  Robert W. Acres ,  Harold R. Davis ,  Andrew N. Donham ,  Nader Riahi ,  Richard W. A. Slamka ,  Lechoslaw K. Urbaniak

IPC: G01N21/954 ,  G06T7/00

CPC classification number: G01N21/909 ,  G06T7/0006 ,  G01N2021/8887 ,  G01N2021/889 ,  G01N2021/9546 ,  G01N2201/102 ,  G06T2207/30136

Abstract: Apparatus is disclosed for detecting irregularities or flaws in seams such as the seams of cans. The apparatus includes means for irradiating the surface of the seam to produce reflected radiation signals, a plurality of radiation sensors, each having a selected field of view of the surface, and each producing sensor output signals dependent on reflected radiation signals received within such field of view. A signal processing means receives sensor output signals for a succession of fields of view along the longitudinal length of the seam and derives therefrom signal data representing a dimensional feature of the seam. Signl comparison means compares such derived data with signal data representing an acceptable dimensional limit and produces a rejection signal in the event that the dimensional feature does not fall within the limit. Means for classifying the nature of an irregularity is also disclosed, as is transport means for the movement of seams though the field of view of the sensors.

公开(公告)号：US5004347A

公开(公告)日：1991-04-02

申请号：US439591

申请日：1989-11-20

Applicant: Nicholaas C. Swart

Inventor： Nicholaas C. Swart

IPC: G01B11/30 ,  G01N21/954

CPC classification number: G01N21/909 ,  G01N2021/8887 ,  G01N2201/102

Abstract: The invention has for its purpose to provide a method and an apparatus for inspecting the bent edge of a disc-shaped object, e.g. the annular edge of a metal lid bounding a gutter for sealing compound. In order to realize such an inspection with great reliability according to the invention the resolution is made as great as possible by means of the following steps:(1) directing a light beam onto the edge zone of the object under an angle of incidents, such that the bent edge gives a shadow in said edge zone;(2) previously determining the shape of the reflection picture also determined by said shadow of said illuminated edge zone in case of an object satisfying a predetermined standard;(3) determining the reflection picture of the edge zone of an object to be inspected; and(4) comparing the results of steps (3) and (4) and generating a rejection signal in case of a detected deviation lying outside a previously chosen tolerance range.

公开(公告)号：US4958373A

公开(公告)日：1990-09-18

申请号：US174879

申请日：1988-03-29

Applicant: Toshiro Usami ,  Hiroyuki Kamijo ,  Takao Ohta ,  Masanobu Ogino

Inventor： Toshiro Usami ,  Hiroyuki Kamijo ,  Takao Ohta ,  Masanobu Ogino

IPC: H01L21/66 ,  G01N21/88 ,  G01N21/95 ,  G01N21/956 ,  G06T7/00

CPC classification number: G06T7/0004 ,  G01N21/9501 ,  G01N2021/8874 ,  G01N2021/8887 ,  G01N21/8851 ,  G01N2201/102 ,  G06T2207/10056 ,  G06T2207/30148

Abstract: A defect-recognition processing apparatus converts into a defect image pattern, via a television camera, crystal defects present on the surface of an object under inspection, to process an image signal, by means of an image processing device, which corresponds to the defect image pattern, to measure rectangular images in terms of their length and their ratio between L.sub.Y and L.sub.X (L.sub.Y : a length in a longitudinal direction and L.sub.X : a length in the lateral direction of the wafer) and to detect defects developed on the surface of the aforementioned object.

Abstract translation: 缺陷识别处理装置通过电视摄像机将存在于被检查物体的表面上的晶体缺陷转换为缺陷图像图案，通过与缺陷图像对应的图像处理装置处理图像信号 图案，以其长度和它们在LY和LX之间的比例（LY：纵向方向上的长度，LX：晶片的横向方向上的长度）测量矩形图像，并且检测在该表面上形成的缺陷 上述目的。