Experimental characterization of high-performance miniature auto-focusing VCM actuator

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

When designing an auto-focusing actuator for use in cell phone cameras, it is important to maximize the positioning repeatability while simultaneously minimizing the device size, the power consumption, the response time, and the dynamic tilt angle. In a previous study (Liu and Lin, Opt. Express, vol. 17, pp. 9754-9763, 2009), the current group designed a miniature auto-focusing voice coil motor (VCM) actuator in which the lens was held in position using a magnetoconductive plate and a closed-loop control mechanism. The aim of this study is to characterize the performance of this device using an experimental approach. The results show that the proposed actuator has a high positioning repeatability, a low dynamic tilt angle, a rapid response, and a low power consumption.

Original languageEnglish
Article number5677472
Pages (from-to)738-745
Number of pages8
JournalIEEE Transactions on Magnetics
Volume47
Issue number4
DOIs
Publication statusPublished - 2011 Apr 1

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Actuators
Electric power utilization
Lenses
Cameras

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

Cite this

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Experimental characterization of high-performance miniature auto-focusing VCM actuator. / Liu, Chien-Sheng; Ko, Shun Sheng; Lin, Psang-Dain.

In: IEEE Transactions on Magnetics, Vol. 47, No. 4, 5677472, 01.04.2011, p. 738-745.

Research output: Contribution to journalArticle

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