TY - JOUR
T1 - An auto-focus lens actuator using ionic polymer metal composites
T2 - Design, fabrication and control
AU - Kim, Chuljin
AU - Kim, Sung Joo
AU - Yang, Hyunseok
AU - Park, No Cheol
AU - Park, Young Pil
N1 - Copyright:
Copyright 2021 Elsevier B.V., All rights reserved.
PY - 2012/10
Y1 - 2012/10
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=84870504354&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84870504354&partnerID=8YFLogxK
U2 - 10.1007/s12541-012-0247-4
DO - 10.1007/s12541-012-0247-4
M3 - Article
AN - SCOPUS:84870504354
VL - 13
SP - 1883
EP - 1887
JO - International Journal of Precision Engineering and Manufacturing
JF - International Journal of Precision Engineering and Manufacturing
SN - 1229-8557
IS - 10
ER -