Patent ID: 6252626
Filing Date: 2001-06-26
Classification: H01J,H04N

Abstract:
A system for tesfing and aligning a CRT assembly mounted on a test fixture, comprising:a video pattern generator to be connected to said CRT assembly for generating an image of a video pattern on said CRT assembly;a plurality of optical sensor devices with independent fields of view, said optical sensor devices being mounted to said test fixture for sensing and producing image signals corresponding to separate details of said image of said video pattern on said CRT assembly, each of said optical sensor devices including a color CCD camera head;camera head controllers each having a digital multiplexer to route digital information from said camera heads to a video input channel processor;a computer including said video input channel processor to process said digital information, said computer executing a CRT assembly testing and alignment procedure; anda graphical user interface for guiding an operator performing adjustments on said CRT assembly through said CRT assembly testing and aligning procedure;wherein each color CCD camera head includes a CCD device and a fixed lens element, said CCD device being movable relative to said fixed lens element in response to an associated camera head controller to change automatically focus of said CCD camera head.