| 摘要 |
PURPOSE:To improve efficiency, to constitute a lightweight movable part, and to improve high frequency characteristics, by using common coils for two axes. CONSTITUTION:While magnets 24 and 25 are fixed in the opposite directions to one-side terminals 22a and 23a of yokes 22 and 23, the other-side terminals 22b and 23b of the yokes 22 and 23 are fitted loosely in through-holes 8b and 8b of a holding member 8, and the magnets 24 and 25 face each other with a specific gap where coils 5 and 6 cross each other, thus constituting a magnetic circuit. In this state, the yokes 22 and 23 are fixed to an external case 21 with screws 26 and 27. Consequently, specific currents are flowed through the coils 5 and 6 to drive the holding member 8 in a tracking and a focusing direction. |
