Monolithic focus-tunable lens technology enabled by disk-type dielectric-elastomer actuatorsopen access
- Authors
- Park, Bong Je; Park, Suntak; Choi, Meejeong; Park, Seung Koo; Yun, Sungryul; Shin, Eunjin; Yoon, Jae Woong
- Issue Date
- Oct-2020
- Publisher
- NATURE RESEARCH
- Citation
- SCIENTIFIC REPORTS, v.10, no.1, pp.1 - 6
- Indexed
- SCIE
SCOPUS
- Journal Title
- SCIENTIFIC REPORTS
- Volume
- 10
- Number
- 1
- Start Page
- 1
- End Page
- 6
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/145026
- DOI
- 10.1038/s41598-020-73666-0
- ISSN
- 2045-2322
- Abstract
- 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.
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