| 摘要 |
PROBLEM TO BE SOLVED: To enhance driving force by reducing the loss of the driving force of a voice coil motor which is a driving mechanism part in an optical axis correcting device to execute the correction of an optical axis at the inside of an optical space transmission device. SOLUTION: Since the voice coil motor is arranged so as to be inclined so that the actuating direction of the magnet 18Yd of the voice coil motor and the shaft center of a coil 18Yb are made in parallel, the direction of the driving force generated by the coil and the actuating direction of the magnet are aligned and the loss of the driving force is reduced. Also, the actuating space of the magnet is reduced and the coil is miniaturized, so that gap magnetic flux density is increased and the driving force is enhanced. |
