数字光盘的发展对光学头的性能要求越来越高 ,而现有的二维物镜力矩器只能实现聚焦和寻迹 ,不能对光盘倾斜进行补偿。本文介绍了一种新型四维物镜驱动力矩器结构 ,可以实现聚焦、寻迹、以及跟踪光盘倾斜角的四维运动。实验证明 ,该四维力矩器可实现小角度偏转 ,并且倾角与线圈电流之间具有良好的线性关系。 The development of digital optical disc has higher and higher requirements on optical head performance. However, the existing two-dimensional objective torque converter can only achieve focusing and tracking, and can not compensate for disc tilt. In this paper, a novel four-dimensional objective lens driving torque converter structure is introduced, which can realize focusing, tracking and track four-dimensional movement of disc tilt angle. Experiments show that the four-dimensional torque converter can achieve a small angle of deflection, and the inclination and the coil current has a good linear relationship.