Design of VCM actuator for optical zooming smartphone cameras

Yu Hao Chang, Cheng Chi Hu, Chang Lin Hsieh, Chien Sheng Liu

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)


The function of optical zooming is really rare in smartphone cameras due to its appearances and dimensions now. The manufactures need to provide a better optical performance and make a new gimmick to attract consumers. As a result, a novel VCM actuator with optical zoom for smartphone cameras is proposed in this paper, it has a simpler structure when compared to stepping motor smartphone cameras. The paper presents a segmented magnetic equivalent circuit method to analyze the magnetic characteristics of proposed VCM actuator and further verified by a commercial finite element model software. Furthermore, the performance of the proposed optical zoom VCM actuator was verified by constructing a laboratory-built prototype, the experimental results shows that the proposed VCM actuator has good positioning accuracy and good dynamic response.

Original languageEnglish
Pages (from-to)277-281
Number of pages5
JournalMicrosystem Technologies
Issue number1
Publication statusPublished - 2019 Jan 9

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Hardware and Architecture
  • Electrical and Electronic Engineering


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