| 摘要 |
PURPOSE:To prevent an electron beam transmission opening from swinging, by making elastic deforming vibration hard to be generated in a frame which receives the outside vibration. CONSTITUTION:Color selection means 2 is arranged to be attached to a panel part 1 via paired springs 161 and 162, and X-Z directional forces of the springs are reduced compared with those of a frame 4. Even if the outside vibration, e.g., speaker vibration allows the frame 4 to receive unbalanced force via the springs 161 and 162 from stud pins 151 and 152, elastic deforming vibration, especially low-frequency vibration can be almost prevented from being generated in the frame 4, because elastic deformation occurring in each of the springs 161 and 162 absorbs this force. Hence, the vibration caused by the speader or the like, which may cause an electron beam transmission opening 3a to 'swing', can be effectively eliminated.
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