| 摘要 |
<p>A shadow mask for cathode ray tube of slot tension type having a dummy bridge formed at a slot part, characterized in that the cross-eye of the shadow mask in Y-axis direction is formed on the dummy bridge; the cross-eye in Y-axis direction being the longer state of an inside etching part in the relation between the width of the etching part at the mask outer peripheral edge part in Y-axis direction on the surface of a screen (outside etching part) and the width of the etching part at the mask center part in Y-axis direction (inside etching part); the outside etching part being a portion between the mask outer peripheral side endmost part in Y-axis direction and the mask outer peripheral side surface end part in Y-axis direction on the surface of the screen at a projected part, whereas the inside etching part being a portion between the mask center side endmost part in Y-axis direction and the mask center side surface end part in Y-axis direction on the surface of the screen at the projected part.</p> |
