DocumentCode :
2799878
Title :
A novel solid state tunable micro lens
Author :
Tung, Hsi-Wen ; Lee, Sz-Yuan ; Chen, Wen-Chih ; Fang, Weileun
Author_Institution :
Nat. Tsing Hua Univ., Hsinchu
fYear :
2007
fDate :
21-25 Jan. 2007
Firstpage :
747
Lastpage :
750
Abstract :
This study reports the current progress of the novel thermal-actuated tunable focal-length micro polymer (PDMS) lens. The prototype of solid state only tunable lens demonstrates a typical variation of focal length from 1852 mum to 1083 mum under a 60 mA driving current. Moreover, this study also demonstrates the capability to integrate the tunable polymer lens with other optical components such as the conventional and dual-focus Fresnel lens. The resulted compound (PDMS+Fresnel) lens reduced the focal-length of Fresnel lens from 13500 mum to 5038 mum. Moreover the focal-length of compound lens was further dropped to 3523 mum at 60 mA driving current. A dual-focus compound lens was also realized to reduce its focal-length from 8000 mum/4000 mum to 1343 mum/975 mum. The compound lens has potential to further perform beam shaping and remove aberrations.
Keywords :
Fresnel diffraction; micro-optomechanical devices; microlenses; optical elements; beam shaping; dual-focus Fresnel lens; dual-focus compound lens; focal-length micropolymer lens; optical components; solid state microlens; thermal actuation; tunable microlens; Assembly; Biomedical optical imaging; Lenses; Mechanical engineering; Optical device fabrication; Optical devices; Polymers; Solid state circuits; Thermal expansion; Thermal lensing;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Micro Electro Mechanical Systems, 2007. MEMS. IEEE 20th International Conference on
Conference_Location :
Hyogo
ISSN :
1084-6999
Print_ISBN :
978-1-4244-095-5
Electronic_ISBN :
1084-6999
Type :
conf
DOI :
10.1109/MEMSYS.2007.4433130
Filename :
4433130
Link To Document :
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