Method and apparatus for making flat tension mask color cathode ray tubes
摘要
Process and apparatus are disclosed for use in the manufacture of a color cathode ray tube having a shadow mask with a central pattern of apertures mounted in tension on a transparent flat front panel. The mask aperture pattern is registered with a catholdoluminescent screen pattern of corresponding geometry and position on an inner surface of the panel. The shadow masks and front panels are respectively interchangeable. Signals are developed which are indicative of the positions of a mechanically stretched mask aperture pattern and an associated front panel screen pattern relative to a reference or to each other. Responsive to such signals, there is effected a relative positioning of the mask and screen until registration between the patterns is achieved.
申请公布号
US4973280(A)
申请公布日期
1990.11.27
申请号
US19890370204
申请日期
1989.06.22
申请人
ZENITH ELECTRONICS CORPORATION
发明人
ADLER, ROBERT;FENDLEY, JAMES R.;LANGE, HOWARD G.;PRAZAK, CHARLES J.;STEINER, JOHANN;STRAUSS, PAUL