Share Email Print
cover

Proceedings Paper

Application of ionic polymer-metal composites for auto-focusing compact camera modules
Author(s): Hyung-Kun Lee; Nak-Jin Choi; Sunkyung Jung; Sunyoung Lee; Hewon Jung; Jae Wook Ryu; Kang-Ho Park
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper 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.

Paper Details

Date Published: 10 April 2008
PDF: 7 pages
Proc. SPIE 6927, Electroactive Polymer Actuators and Devices (EAPAD) 2008, 69271N (10 April 2008); doi: 10.1117/12.776119
Show Author Affiliations
Hyung-Kun Lee, Electronics and Telecommunications Research Institute (South Korea)
Nak-Jin Choi, Electronics and Telecommunications Research Institute (South Korea)
Sunkyung Jung, Electronics and Telecommunications Research Institute (South Korea)
Sunyoung Lee, Electronics and Telecommunications Research Institute (South Korea)
Hewon Jung, Hysonic Co., Ltd. (South Korea)
Jae Wook Ryu, Hysonic Co., Ltd. (South Korea)
Kang-Ho Park, Electronics and Telecommunications Research Institute (South Korea)


Published in SPIE Proceedings Vol. 6927:
Electroactive Polymer Actuators and Devices (EAPAD) 2008
Yoseph Bar-Cohen, Editor(s)

© SPIE. Terms of Use
Back to Top