Ultrasonic high-speed variable-focus lens and its application to micro-optical devices

• Project/Area Number: 25420227
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Intelligent mechanics/Mechanical systems
• Research Institution: Doshisha University
• Principal Investigator: Koyama Daisuke 同志社大学, 理工学部, 准教授 (50401518)
• Co-Investigator(Kenkyū-buntansha): NAKAMURA KENTARO 東京工業大学, 未来産業技術研究所, 教授 (20242315)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Project Status: Completed (Fiscal Year 2015)
• Budget Amount: ¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000); Fiscal Year 2015: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000); Fiscal Year 2014: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000); Fiscal Year 2013: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
• Keywords: 超音波 / 光学レンズ / 音響放射力 / 液晶 / 光デバイス / 可変焦点レンズ / レンズアレイ / スキャナ / 紫外線硬化樹脂 / 圧電振動子

Outline of Final Research Achievements

In this study, high-speed optical lenses using acoustic radiation force and its application to micro-optical devices were developed. The lens can change its focal point by deforming the lens profile in a similar manner as the crystalline lens of the human eye. The high-speed response is expected by using acoustic radiation force.
The applications to micro-optical devices such as lens arrays and optical scanners were also developed. A novel technique to control the liquid molecular orientation was proposed and investigated.

Research Products

• [Journal Article] Movable optical lens array using ultrasonic vibration (2016)
  • Author(s): D. Koyama, Y. Kashihara, M. Hatanaka, K. Nakamura, M. Matsukawa
  • Journal Title: Sens. Actuators A, Phys., Vol. , No. 1, pp. (2016) Volume: 237 Pages: 35-40
  • DOI: 10.1016/j.sna.2015.11.009
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Control of liquid crystal molecular orientation using ultrasound vibration (2016)
  • Author(s): S. Taniguchi, D. Koyama, Y. Shimizu, A. Emoto, K. Nakamura, M. Matsukawa
  • Journal Title: Appl. Phys. Lett. Volume: 108 Issue: 10 Pages: 101103-101103
  • DOI: 10.1063/1.4943494
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Fabrication of an optical lens array using ultraviolet light and ultrasonication (2015)
  • Author(s): S. Taniguchi, D. Koyama, K. Nakamura, M. Matsukawa
  • Journal Title: Ultrasonics Volume: 58 Pages: 22-26
  • DOI: 10.1016/j.ultras.2014.11.014
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] 超音波による可変焦点光学レンズ -音波の力により形状が変化するレンズ- (2014)
  • Author(s): 小山大介
  • Journal Title: 超音波TECHNO Volume: 26 Pages: 27-31
• [Presentation] 超音波駆動によるネマティック液晶の2次元配向制御 (2016)
  • Author(s): 清水裕貴, 谷口聡紀, 江本顕雄, 小山大介, 中村健太郎, 松川真美
  • Organizer: 第63回応用物理学会春季学術講演会
  • Place of Presentation: 東京
  • Year and Date: 2016-03-19
• [Presentation] 音響放射力によるNematic液晶の透過光制御 (2016)
  • Author(s): 谷口聡紀, 清水裕貴, 江本顕雄, 小山大介, 中村健太郎, 松川真美
  • Organizer: 日本音響学会2016年春季研究発表会
  • Place of Presentation: 横浜
  • Year and Date: 2016-03-09
• [Presentation] 超音波によるNematic液晶の透過光制御 (2016)
  • Author(s): 谷口聡紀, 清水裕貴, 江本顕雄, 小山大介, 中村健太郎, 松川真美
  • Organizer: 電子情報通信学会 超音波研究会
  • Place of Presentation: 大阪
  • Year and Date: 2016-01-28
• [Presentation] たわみ定在波を用いた液晶分子の配向制御 (2015)
  • Author(s): 清水裕貴, 谷口聡紀, 江本顕雄, 小山大介, 松川真美
  • Organizer: 第18回日本音響学会関西支部若手研究者交流研究発表会
  • Place of Presentation: 大阪
  • Year and Date: 2015-12-13
• [Presentation] 超音波による液晶の分子配向制御 (2015)
  • Author(s): 谷口聡紀, 清水裕貴, 江本顕雄, 小山大介, 松川真美
  • Organizer: 第56回光波センシング技術研究会講演会
  • Place of Presentation: 東京
  • Year and Date: 2015-12-08
• [Presentation] 音響放射力による液晶分子の配向制御 (2015)
  • Author(s): 谷口聡紀, 清水裕貴, 江本顕雄, 小山大介, 松川真美
  • Organizer: 第36回超音波エレクトロニクスの基礎と応用に関するシンポジウム
  • Place of Presentation: つくば
  • Year and Date: 2015-11-05
• [Presentation] Tunable optical lens array using viscoelastic material and acoustic radiation force (2015)
  • Author(s): D. Koyama, Y. Kashihara, M. Hatanaka, K. Nakamura, M. Matsukawa
  • Organizer: 20th International Symposium on Nonlinear Acoustics
  • Place of Presentation: リヨン（フランス）
  • Year and Date: 2015-06-29
  • Int'l Joint Research
• [Presentation] Movable optical lens array using acoustic radiation force (2015)
  • Author(s): D. Koyama, Y. Kashihara, M. Hatanaka, K. Nakamura, M. Matsukawa
  • Organizer: Acoustical Society of America Spring 2015 Meeting
  • Place of Presentation: ピッツバーグ（米国）
  • Year and Date: 2015-05-18
  • Int'l Joint Research
• [Presentation] Fabrication of micro-lens array using surface acoustic wave (2015)
  • Author(s): S. Taniguchi, S. Takayanagi, D. Koyama, K. Nakamura, M. Matsukawa
  • Organizer: Acoustical Society of America Spring 2015 Meeting
  • Place of Presentation: ピッツバーグ（米国）
  • Year and Date: 2015-05-18
  • Int'l Joint Research
• [Presentation] , 音響放射力を用光学レンズアレイの動作特性 (2015)
  • Author(s): 小山大介, 柏原佑太, 畠中恵, 中村健太郎, 松川真美
  • Organizer: 電子情報通信学会 超音波研究会
  • Place of Presentation: 東京
  • Year and Date: 2015-04-20
• [Presentation] たわみ振動を用いたレンズアレイの動作特性 (2015)
  • Author(s): 柏原佑太, 畠中恵, 小山大介, 中村健太郎, 松川真美
  • Organizer: 日本音響学会2015年春季研究発表会
  • Place of Presentation: 東京
  • Year and Date: 2015-03-16 – 2015-03-18
• [Presentation] Optical lens array formed by acoustic radiation force and ultraviolet curable resin (2014)
  • Author(s): D. Koyama
  • Organizer: Ultrasonics 2014 -Ultrasonic-based applications: from analysis to synthesis-
  • Place of Presentation: Lisbon
  • Year and Date: 2014-09-15 – 2014-09-17
  • Invited
• [Presentation] Fabrication of an optical lens array using ultraviolet light and ultrasound vibration (2014)
  • Author(s): S. Taniguchi, D. Koyama, K. Nakamura, M. Matsukawa
  • Organizer: 2014 IEEE International Ultrasonics Symposium
  • Place of Presentation: Chicago
  • Year and Date: 2014-09-03 – 2014-09-06
• [Presentation] 音響放射力と紫外線硬化樹脂によるレンズアレイの作製 (2014)
  • Author(s): 小山大介, 谷口聡紀, 中村健太郎, 松川真美
  • Organizer: 日本音響学会2014年秋季研究発表会
  • Place of Presentation: 札幌
  • Year and Date: 2014-09-03 – 2014-09-05
• [Presentation] 音響放射力を用いたレンズアレイの作製 (2014)
  • Author(s): 谷口聡紀, 小山大介, 中村健太郎, 松川真美
  • Organizer: 2014年度非線形音響研究会
  • Place of Presentation: 軽井沢
  • Year and Date: 2014-07-26 – 2014-07-27
• [Presentation] 紫外線硬化樹脂と超音波振動を用いたレンズアレイの作製 (2014)
  • Author(s): 谷口聡紀, 小山大介, 中村健太郎, 松川真美
  • Organizer: 電子情報通信学会 超音波研究会
  • Place of Presentation: 東京
  • Year and Date: 2014-07-11
• [Presentation] Ultrasonic optical lens array with variable focal length and pitch (2013)
  • Author(s): M. Hatanaka, D. Koyama, K. Nakamura, M. Matsukawa
  • Organizer: 2013 International Congress on Ultrasonics
  • Place of Presentation: Singapore
• [Presentation] Optical lens array with variable focus length and pitch using acoustic radiation force (2013)
  • Author(s): D. Koyama, M. Hatanaka, K. Nakamura, M. Matsukawa
  • Organizer: 10th International workshop on piezoelectric materials and applications in actuators
  • Place of Presentation: Hannover
• [Presentation] Applied acoustic devices using ultrasound radiation force (2013)
  • Author(s): D. Koyama
  • Organizer: JSAP-OSA Joint Symposia 2013
  • Place of Presentation: Kyoto
• [Patent(Industrial Property Rights)] 液晶分子配向制御方法および液晶デバイス (2015)
  • Inventor(s): 小山大介，谷口聡紀，清水裕貴
  • Industrial Property Rights Holder: 学校法人同志社
  • Industrial Property Rights Type: 特許
  • Industrial Property Number: 2015-210025
  • Filing Date: 2015-10-26