中文摘要：

综述了国内外超声波电动机在透镜调焦中的研发和应用，特别论述了最近几年的研发和应用，并展望了未来几年将在手机市场出现应用超声波电动机的热潮。

英文摘要：

The development and application of ultrasonic motor in lens focusing were presented, especially the recent development and application. And the application upsurge of ultrasonic motor will be expected in mobile phone cameras market.