An auto-focus lens actuator using ionic polymer metal composites: Design, fabrication and control

Chuljin Kim, Sung Joo Kim, Hyunseok Yang, No Cheol Park, Young Pil Park

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Ionic polymer metal composites (IPMCs) are attractive smart materials. We propose an auto-focus (AF) lens actuator using IPMCs for cellular phones. In order to ensure stability, IPMCs were fabricated by using a plasma surface treatment and an ionic liquid solvent. AF lens actuator using IPMCs was designed to implement a large displacement and increased force by using a curved IPMCs. And the actuator had a structure with two springs to ensure stable AF actuation. Subsequently, a prototype AF lens actuator was fabricated. The parameters of the actuator were estimated from experimental data and a linear model of the AF lens actuator system. Then, a proportional-integral-derivative controller was designed, and the motion of the AF lens actuator was demonstrated through simulations and experiments.

Original languageEnglish
Pages (from-to)1883-1887
Number of pages5
JournalInternational Journal of Precision Engineering and Manufacturing
Volume13
Issue number10
DOIs
Publication statusPublished - 2012 Oct 1

Fingerprint

Lenses
Actuators
Fabrication
Composite materials
Polymers
Metals
Intelligent materials
Ionic liquids
Surface treatment
Derivatives
Plasmas
Controllers
Experiments

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering
  • Industrial and Manufacturing Engineering
  • Electrical and Electronic Engineering

Cite this

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An auto-focus lens actuator using ionic polymer metal composites : Design, fabrication and control. / Kim, Chuljin; Kim, Sung Joo; Yang, Hyunseok; Park, No Cheol; Park, Young Pil.

In: International Journal of Precision Engineering and Manufacturing, Vol. 13, No. 10, 01.10.2012, p. 1883-1887.

Research output: Contribution to journalArticle

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