Innovative AF VCM actuator for smart phone camera module

Chien-Sheng Liu, Hong Fei Li, Min Kai Lee

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In the present study, we propose an innovative autofocusing (AF) voice coil motor (VCM) actuator to replace the traditional AF VCM actuators with springs for smart phone camera modules. In the proposed electromagnetic structure, the magnetic pre-compression force between the two guide rods and permanent magnet is used to replace the restoring resilience force of the two springs in the traditional AF VCM actuators. The proposed AF VCM actuator is characterized numerically using the simulation analysis of commercial software Infolytica MagNet and then verified experimentally using a laboratory-built prototype. The experimental results presented in this study show compared to traditional AF VCM actuator, the proposed AF VCM actuator has excellent AF performance to be able to replace the traditional AF VCM actuators. As a result, the proposed device provides a promising solution for smart phone camera modules or industrial applications.

Original languageEnglish
Title of host publication2015 ASME/IEEE International Conference on Mechatronic and Embedded Systems and Applications
PublisherAmerican Society of Mechanical Engineers (ASME)
ISBN (Electronic)9780791857199
DOIs
Publication statusPublished - 2015 Jan 1
EventASME 2015 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, IDETC/CIE 2015 - Boston, United States
Duration: 2015 Aug 22015 Aug 5

Publication series

NameProceedings of the ASME Design Engineering Technical Conference
Volume9

Other

OtherASME 2015 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, IDETC/CIE 2015
CountryUnited States
CityBoston
Period15-08-0215-08-05

All Science Journal Classification (ASJC) codes

  • Modelling and Simulation
  • Mechanical Engineering
  • Computer Science Applications
  • Computer Graphics and Computer-Aided Design

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  • Cite this

    Liu, C-S., Li, H. F., & Lee, M. K. (2015). Innovative AF VCM actuator for smart phone camera module. In 2015 ASME/IEEE International Conference on Mechatronic and Embedded Systems and Applications (Proceedings of the ASME Design Engineering Technical Conference; Vol. 9). American Society of Mechanical Engineers (ASME). https://doi.org/10.1115/DETC2015-46031