Open AccessIonic polymer metal composite for an optical zoom in a compact camera
Author(s) -
Wei–Hsiang Chen,
Jia-Shiun Lu,
Guo-Dung John Su
Publication year - 2015
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.23.013265
Subject(s) - materials science , zoom , optics , polydimethylsiloxane , surface roughness , optical power , composite number , surface finish , adaptive optics , nanotechnology , composite material , physics , laser , lens (geology)
The reflective method is utilized in the optical zoom function of a thin camera for the advantage of folding the optical path. An ionic polymer metal composite deformable mirror used in a reflective zoom system achieves large deformations to change optical power with a low bias voltage. Polydimethylsiloxane is used as a buffer layer to improve surface roughness. The surface roughness of this layer is about 17 nm. The optical focusing power of the deformable mirror reaches 73.8 m(-1) diopters with 3 volts. A complete reflective camera module is fabricated using two ionic polymer metal composite deformable mirrors in the zoom function. The zoom ratio is about 1.6 × .