Polymer deformable mirror for optical auto focusing

被引：16
|
作者：
Wang, Jen-Liang [1 ]
Chen, Tyng Yow [1 ]
Liu, ChingWei [1 ]
Chiu, Chen-Wei Edward [1 ]
Su, Guo-Dung John [1 ]
机构：
[1] Natl Taiwan Univ, Grad Inst Electroopt Engn, Taipei 10764, Taiwan
来源：
ETRI JOURNAL | 2007年 / 29卷 / 06期
关键词：
reflective optics; variable focus; parabolic curvature; organic deformable mirrors;
D O I：
10.4218/etrij.07.0207.0107
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A low-stress organic polymer membrane is proposed as a deformable mirror that can be incorporated into a cellular phone camera to achieve auto focusing without motor-type moving parts. It is demonstrated that our fabricated device has an optical power of 20 diopters and can switch focus in 14 ms. The surface roughness of the organic membrane is measured around 15 nm, less than lambda/20 of the visible light With curve fitting, we found that the actuated membrane is almost parabolic in shape, which leads to less aberration than spherical surfaces. It is suitable for reflective-optics systems.
引用
收藏
页码：817 / 819
页数：3
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