公开(公告)号：US6058221A

公开(公告)日：2000-05-02

申请号：US008641

申请日：1998-01-16

申请人： Branko Bukal ,  Reza Safaee-Rad ,  Karoly G. Nemeth

发明人： Branko Bukal ,  Reza Safaee-Rad ,  Karoly G. Nemeth

IPC分类号： H01J9/42 ,  H04N17/04 ,  G06K9/36

CPC分类号： H04N17/04 ,  H01J9/42

摘要： In a method of measuring electron beam profile in an electronic display device, a matrix of video dots is displayed on a display screen of the electronic display device, each of the video dots being comprised of a group of phosphor dots illuminated by an electron beam. An image of a plurality of groups of illuminated phosphor dots forming the video dots within a field of view is then taken. The average horizontal and vertical distances of the video dots within the filed of view is determined and the groups of illuminated phosphor dots forming the video dots in the field of view that are captured in the image are superimposed based on the average horizontal and vertical distances of the video dots generally to average and fill in discontinuities between phosphor dots in the groups and thereby generate an overlay image of the electron beam. Cross-sections of the overlay image can be approximated and at least one intensity profile of the electron beam calculated. Overlay images of each color electron beam can also be captured simultaneously and a convergence error calculated.

摘要翻译： 在电子显示装置中测量电子束分布的方法中，在电子显示装置的显示屏幕上显示视频点矩阵，每个视频点由电子束照射的一组磷光体点组成。 然后拍摄在视野内形成视频点的多组照明荧光体点的图像。 确定视野内的视频点的平均水平和垂直距离，并且基于平均水平和垂直距离叠加在图像中捕获的视场中形成视频点的被照射磷光体组 视频点通常平均并填充组中的磷光体点之间的不连续性，从而生成电子束的覆盖图像。 可以近似覆盖图像的横截面，并计算电子束的至少一个强度分布。 也可以同时捕获每个彩色电子束的叠加图像并计算收敛误差。

公开(公告)号：US06252626B1

公开(公告)日：2001-06-26

申请号：US08750522

申请日：1997-03-25

申请人： Eric S. Buckley ,  Bruce W. C. Lee ,  Branko Bukal ,  Wayne G. Dawe ,  Andrew G. Noonan ,  Todd R. Richardson

发明人： Eric S. Buckley ,  Bruce W. C. Lee ,  Branko Bukal ,  Wayne G. Dawe ,  Andrew G. Noonan ,  Todd R. Richardson

IPC分类号： H04N1704

CPC分类号： H01J9/42 ,  H04N17/04

摘要： Apparatus and methods for system and method for testing and aligning a CRT which can sequentially perform all of the tests needed to precisely align the CRT and provide real-time feedback for operator adjustments. The system can integrate each of the measurements and automatically verify measurements previously performed as required. An improved color CCD camera is also provided which can maintain focus irrespective of variations in the thickness and glass curvature of the CRT screen. Further, photodiode optical filter and lens assemblies and wobulator assemblies can be incorporated into the system to further improve the testing and aligning of the CRTs.

摘要翻译： 用于测试和对准CRT的系统和方法的装置和方法，其可以顺序地执行所有需要精确对准CRT并且为操作者调整提供实时反馈所需的测试。 系统可以集成每个测量结果，并根据需要自动验证先前执行的测量。 还提供了一种改进的彩色CCD照相机，其可以保持聚焦，而与CRT屏幕的厚度和玻璃曲率的变化无关。 此外，可以将光电二极管光学滤波器和透镜组件和摆动器组件并入系统中，以进一步改进CRT的测试和对准。

公开(公告)号：US5969756A

公开(公告)日：1999-10-19

申请号：US670694

申请日：1996-06-26

申请人： Eric Buckley ,  Branko Bukal ,  Wayne Dawe ,  Paul Farrer ,  Karoly G. Nemeth ,  Andrew Noonan

发明人： Eric Buckley ,  Branko Bukal ,  Wayne Dawe ,  Paul Farrer ,  Karoly G. Nemeth ,  Andrew Noonan

IPC分类号： H01J9/42 ,  G01M11/00 ,  G09G1/00 ,  H01J9/44 ,  H04N17/04 ,  H04N17/00 ,  H04N17/02

CPC分类号： H01J9/42 ,  H04N17/04

摘要： A test and alignment system for an electronic display device comprises a test pattern generator to be connected to an electronic display device for causing images of video test patterns to be displayed by the electronic display device. A test fixture is positioned in front of the electronic display device to be tested and aligned. The test fixture includes a frame supporting a plurality of close-up optical sensors to sense and produce image signals corresponding to small areas of images displayed on the electronic display device and a plurality of wide-angle optical sensors behind the close-up optical sensors for sensing and producing image signals corresponding to large areas of images displayed on the electronic display device. A computer controls the test pattern generator and processes and analyses the image signals generated by the close-up and wide-angle optical sensors to perform a series of tests on the electronic display device. A display provides a visual indication of the results of the series of tests performed by the computer.

摘要翻译： 用于电子显示装置的测试和对准系统包括要连接到电子显示装置的测试图案发生器，用于使视频测试图案的图像由电子显示装置显示。 测试夹具位于电子显示装置的前面，以进行测试和对准。 测试夹具包括支撑多个特写光学传感器的框架，用于感测和产生对应于在电子显示设备上显示的图像的小区域的图像信号，以及特写光学传感器后面的多个广角光学传感器， 感测和产生对应于在电子显示装置上显示的大面积图像的图像信号。 计算机控制测试图形发生器并处理和分析由特写和广角光学传感器产生的图像信号，以对电子显示装置执行一系列测试。 显示器提供由计算机执行的一系列测试的结果的可视指示。

公开(公告)号：US07308157B2

公开(公告)日：2007-12-11

申请号：US10771126

申请日：2004-02-02

申请人： Reza Safaee-Rad ,  Aleksander Crnatovic ,  Jeffrey Hawthorne ,  Branko Bukal ,  Ray Leerentveld

发明人： Reza Safaee-Rad ,  Aleksander Crnatovic ,  Jeffrey Hawthorne ,  Branko Bukal ,  Ray Leerentveld

IPC分类号： G06K9/32

CPC分类号： G06T7/0004 ,  G06T2207/30108 ,  H04N17/02 ,  H04N17/04

摘要： A method and apparatus for optically inspecting a display employs sub-pixel accuracy for each primary color to take into account angle of rotation. The method includes capturing images of a display with R×S sensors; determining sets of sensor coordinates mapping to a pixel, determining multiple misalignment angles between the pixel on the display and the R×S sensors, determining multiple x scaling ratios, determining multiple weighting factors associated with R×S sensors in response to the corresponding multiple misalignment angle and the corresponding multiple x and y scaling ratios, determining multiple luminance values for R×S sensors, determining multiple total luminance values in response to the weighting factors and the luminance values, forming scaled images including first and second luminance values, and inspecting the scaled image to identify potential defects of the pixel on the display.

摘要翻译： 用于光学检查显示器的方法和装置对于每个基色采用子像素精度以考虑旋转角度。 该方法包括用RxS传感器捕获显示器的图像; 确定映射到像素的传感器坐标的集合，确定显示器上的像素与RxS传感器之间的多个未对准角度，确定多个x缩放比率，响应于相应的多重不对准角度确定与RxS传感器相关联的多个加权因子 多个x和y缩放比率，确定RxS传感器的多个亮度值，响应于加权因子和亮度值确定多个总亮度值，形成包括第一和第二亮度值的缩放图像，以及检查缩放图像以识别潜在缺陷 的显示器上的像素。