| 摘要 |
<p>A deflection unit (4) comprises a saddle-shaped deflection coil (30). The deflection coil comprises at either the front or rear end a concave part having a left and right corner (41, 42) which define a line (43). The concave part is flanked at either side by adjacent portions (38, 39). It holds that: α⊃β where α is an angle between a line (43) through the two corners (40, 41) of the concave part (40) and inner windings of the concave part (40), and β is an angle between said line (43) and the inner windings at the outer side of a corner (41, 42).</p> |
