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Proceedings Article

Application of ionic polymer-metal composites for auto-focusing compact camera modules

[+] Author Affiliations
Hyung-Kun Lee, Nak-Jin Choi, Sunkyung Jung, Sunyoung Lee, Kang-Ho Park

Electronics and Telecommunications Research Institute (South Korea)

Hewon Jung, Jae Wook Ryu

Hysonic Co., Ltd. (South Korea)

Proc. SPIE 6927, Electroactive Polymer Actuators and Devices (EAPAD) 2008, 69271N (April 10, 2008); doi:10.1117/12.776119
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From Conference Volume 6927

  • Electroactive Polymer Actuators and Devices (EAPAD) 2008
  • Yoseph Bar-Cohen
  • San Diego, California | March 09, 2008

abstract

Step-motor, piezo, liquid lens and voice coil motor (VCM) have been thought as good candidates for actuators in auto-focusing compact camera module (CCM). Currently, VCMs take possession of big place in auto-focusing CCM market. However, VCMs have limitations in developing thin, low-power CCMs. Therefore, ionic polymer-metal composites (IPMCs) could be thought as one of the best candidates in developing auto-focusing CCM due to their well-known characteristics such as low-power consumption and large displacement. It is required that fast bending response (20 μm/20 ms) and large blocking force (800 mgf) should be achieved for the practical applications of IPMCs in developing auto-focusing CCM. Here, we present the method for increasing IPMC's bending response and displacement by anisotropic plasma treatment. Furthermore, we demonstrate the fabrication of a prototype of CCM actuated by IPMC and its remarkable low power consumption.

© (2008) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Hyung-Kun Lee ; Nak-Jin Choi ; Sunkyung Jung ; Sunyoung Lee ; Hewon Jung, et al.
"Application of ionic polymer-metal composites for auto-focusing compact camera modules", Proc. SPIE 6927, Electroactive Polymer Actuators and Devices (EAPAD) 2008, 69271N (April 10, 2008); doi:10.1117/12.776119; http://dx.doi.org/10.1117/12.776119


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