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Paper Abstract and Keywords
Presentation 2015-04-20 13:25
Movable optical lens array using acoustic radiation force
Daisuke Koyama, Yuta Kashihara, Megumi Hatanaka (Doshisha Univ.), Kentaro Nakamura (Tokyo Tech.), Mami Matsukawa (Doshisha Univ.) US2015-2
Abstract (in Japanese) (See Japanese page) 
(in English) A movable optical lens array that uses acoustic radiation force was investigated. The lens array consists of a glass plate, two piezoelectric bimorph transducers, and a transparent viscoelastic gel film. A cylindrical lens array with a lens pitch of 4.6 mm was fabricated using the acoustic radiation force generated by the flexural vibration of the glass plate at the driving frequency of 113 kHz. The light paths through a lens were calculated by ray tracing. The focal point and the positioning of the lenses can be changed using the input voltage and the driving phase difference between the two transducers, respectively. The focal length decreased with increasing input voltage because the lens displacement amplitude increased. The position of the lens array shifted in the length direction of the glass plate with the change in phase difference, and the distance moved was 4.6 mm when the phase difference changed from 0 to 360$^circ$, which corresponds to half the wavelength of the flexural vibration of the glass plate. The translation property of the lens array was applied in an optical scanner, and the maximum angle of refraction was 4.9$^circ$ when the driving voltage was 70 V$_{pp}$.
Keyword (in Japanese) (See Japanese page) 
(in English) lens array / variable-focus lens / acoustic radiation force / flexural vibration / / / /  
Reference Info. IEICE Tech. Rep., vol. 115, no. 9, US2015-2, pp. 7-12, April 2015.
Paper # US2015-2 
Date of Issue 2015-04-13 (US) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
Copyright
and
reproduction		 All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF US2015-2

Conference Information
Committee US  
Conference Date 2015-04-20 - 2015-04-20 
Place (in Japanese) (See Japanese page) 
Place (in English) The University of Electro-Communications 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Nonlinear Acoustics, General, etc 
Paper Information
Registration To US 
Conference Code 2015-04-US 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Movable optical lens array using acoustic radiation force 
Sub Title (in English)  
Keyword(1) lens array  
Keyword(2) variable-focus lens  
Keyword(3) acoustic radiation force  
Keyword(4) flexural vibration  
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1st Author's Name Daisuke Koyama  
1st Author's Affiliation Doshisha University (Doshisha Univ.)
2nd Author's Name Yuta Kashihara  
2nd Author's Affiliation Doshisha University (Doshisha Univ.)
3rd Author's Name Megumi Hatanaka  
3rd Author's Affiliation Doshisha University (Doshisha Univ.)
4th Author's Name Kentaro Nakamura  
4th Author's Affiliation Tokyo Institute of Technology (Tokyo Tech.)
5th Author's Name Mami Matsukawa  
5th Author's Affiliation Doshisha University (Doshisha Univ.)
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Speaker Author-1 
Date Time 2015-04-20 13:25:00 
Presentation Time 25 minutes 
Registration for US 
Paper # US2015-2 
Volume (vol) vol.115 
Number (no) no.9 
Page pp.7-12 
#Pages 6 
Date of Issue 2015-04-13 (US) 

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