Milliseconds-response optical lenses and high-speed optical devices using ultrasound

使用超声波的毫秒响应光学镜头和高速光学设备

• 批准号: 23760220
• 负责人: KOYAMA Daisuke
• 金额: $ 2.75万
• 依托单位: Doshisha University (2012)Tokyo Institute of Technology (2011)
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Young Scientists (B)
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011 至 2012
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23760220/
• 关键词: 可変焦点レンズ; 光学レンズ; 超音波; ソフトアクチュエータ; 圧電材料; 共焦点画像; 広視野画像; 音響放射力

An ultrasonic variable optical focus lens which utilizes the refractive index difference of two immiscible liquids was developed. The profile of interface between the two liquids can change by radiation force of ultrasound so that the lens can act as a variable focus lens. The focal point could be controlled by the driving voltage, and the shortest response time of 6.7 ms could be achieved. The confocal image could be captured by sweeping the focal point in the light axis at 1 kHz. Three dimensional focal scanning could be also achieved by non-axisymmetric sound pressure field.

研制了一种利用两种不互溶液体折射率差的超声变焦透镜。两种液体之间的界面轮廓可以通过超声波的辐射力而改变，使得透镜可以用作可变焦点透镜。焦点可由驱动电压控制，最短响应时间为6.7ms。共焦图像可以通过在光轴上以1kHz扫描焦点来捕获。非轴对称声压场也可实现三维聚焦扫描。

项目成果

超音波式可変焦点レンズアレイ及びその制御方法

超声波变焦透镜阵列及其控制方法

• 发表时间: 2012

Ultrasonic variable-focus optical lens using viscoelastic material

采用粘弹性材料的超声波可变焦光学镜头

• DOI: 10.1063/1.3688937
• 发表时间: 2012
• 期刊: Appl. Phys. Lett.
• 作者: D. Koyama;R. Isago and K. Nakamura
• 通讯作者: R. Isago and K. Nakamura

Three-dimensional focus scanning by an acoustic variable-focus optical liquid lens

声学可变焦光学液体透镜的三维聚焦扫描

• 发表时间: 2012
• 作者: D. Koyama;R. Isago and K. Nakamura
• 通讯作者: R. Isago and K. Nakamura

High-speed focus scanning at 1 kHz by a variable-focus liquid lens using acoustic radiation force

利用声辐射力，通过可变焦液体透镜以 1 kHz 进行高速聚焦扫描

• 发表时间: 2011
• 作者: D. Koyama;R. Isago and K. Nakamura
• 通讯作者: R. Isago and K. Nakamura

Three-dimensional variable-focus liquid lens using acoustic radiation force

利用声辐射力的三维可变焦液体透镜

• DOI: 10.1109/tuffc.2011.2134
• 发表时间: 2011
• 期刊: IEEE Trans. Ultrason., Ferroelect., Freq. Contr.
• 作者: D. Koyama;R. Isago and K. Nakamura
• 通讯作者: R. Isago and K. Nakamura