We present two piezo-actuated adaptive prisms with apertures of 8 mm based on a bi-axial continuously tiltable glass window on top of an optical fluid, enabling fast scanning applications in a compact, linear axial design. One prism with a device size of 58 by 51 mm is optimized for scan angles of ±6.4° and response times of 2.5 ms. A second compact prism uses spiral-shaped actuators to achieve a reduced device diameter of 33 mm at slightly compromised maximum scan angles of ±4.0° with response times of approximately 4 ms. We show the design and FEM-based optimization of the prisms, their fabrication and the characterization of the scan angles and of the dynamic behavior. Finally, we also demonstrate the linearity of the system and discuss a simple control model.

中文翻译：

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用于连续可调双轴扫描的压电驱动自适应棱镜

我们基于光学流体上的双轴连续可倾斜玻璃窗，介绍了两个孔径为8 mm的压电致动自适应棱镜，可在紧凑的线性轴向设计中实现快速扫描应用。针对设备尺寸为58 x 51 mm的一个棱镜进行了优化，以实现±6.4°的扫描角和2.5 ms的响应时间。第二个紧凑型棱镜使用螺旋形致动器，以最大折合±4.0°的最大扫描角度实现33 mm的减小的设备直径，响应时间约为4 ms。我们展示了棱镜的设计和基于FEM的优化，它们的制造以及扫描角和动态特性的表征。最后，我们还演示了系统的线性度并讨论了一个简单的控制模型。