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학술지 Monolithic Focus-tunable Lens Technology Enabled by Disk-type Dielectric-elastomer Actuators
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저자
박봉제, 박선택, 최미정, 박승구, 윤성률, 신은진, 윤재웅
발행일
202009
출처
Scientific Reports, v.10, pp.1-6
ISSN
2045-2322
출판사
Nature Research
DOI
https://dx.doi.org/10.1038/s41598-020-73666-0
협약과제
20ZS1200, 인간중심의 자율지능시스템 원천기술연구, 김도현
초록
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 7혻ms 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.
KSP 제안 키워드
Compact device, Device structure, Disk-type, Driving conditions, Fabrication method, In-plane, Lens structure, Performance Test, Speed limit, Static and dynamic, device fabrication
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