Park Bong Je, Park Suntak, Choi Meejeong, Park Seung Koo, Yun Sungryul, Shin Eunjin, Yoon Jae Woong
Artifical Intelligence Research Laboratory, Electronics and Telecommunications Research Institute (ETRI), Daejeon, 34129, Korea.
Department of Physics, Hanyang University, Seoul, 04763, Korea.
Sci Rep. 2020 Oct 9;10(1):16937. doi: 10.1038/s41598-020-73666-0.
We propose a monolithic focus-tunable lens structure based on the dielectric-elastomer actuator (DEA) technology. In our focus-tunable lens, a soft lens and radial in-plane actuator mimicking the ocular focal-tuning mechanism are constructed in a single body of an optimized dielectric-elastomer film. We provide device fabrication methods including elastomer synthesis, structure formation, and packaging process steps. Performance test measurements show 93% focal tunability and 7 ms response time under static and dynamic electrical driving conditions, respectively. These performance characteristics are substantially enhanced from the previous polylithic DEA tunable lens by a factor 1.4 for the focal tunability and a factor 9.4 for the dynamic tuning-speed limit. Therefore, we obtain greatly enhanced focal tuning control in a remarkably simple and compact device structure.
我们提出了一种基于介电弹性体致动器（DEA）技术的单片聚焦可调透镜结构。在我们的聚焦可调透镜中，一个模仿眼部聚焦调节机制的柔性透镜和径向平面内致动器被构建在一个优化的介电弹性体薄膜的单一主体中。我们提供了包括弹性体合成、结构形成和封装工艺步骤在内的器件制造方法。性能测试测量结果表明，在静态和动态电驱动条件下，聚焦可调性分别为93%，响应时间为7毫秒。与之前的多片式DEA可调透镜相比，这些性能特征在聚焦可调性方面提高了1.4倍，在动态调谐速度极限方面提高了9.4倍，得到了显著增强。因此，我们在一个非常简单和紧凑的器件结构中获得了大大增强的聚焦调谐控制。
