Title
Ultrathin Tunable Lens Based on Boundary Tension Effect.
Abstract
Solid and liquid lenses are commonly used in optical design. Such lenses have suitable thicknesses due to their working principle and processing mode. Thus, zoom optical systems comprising solid and liquid lenses are extremely large. This work presents a new ultrathin tunable lens (UTL) comprising two liquid film lenses (LFLs) obtained through aspheric deformation and produced from the surface of a micro-liquid under gravity and boundary tension. The UTL can flexibly change focal lengths between positive and negative lenses when the device thickness is merely 2.15 mm. The proposed lens has the advantages of small volume, light weight, simple fabrication, and independence from external force during zooming. This research makes up for the drawback that traditional solid and liquid lenses cannot further reduce their thicknesses. The proposed UTL provides a new lens form and fabrication method, and can be used to replace solid and liquid lenses for designing miniature zoom optical systems.
Year
DOI
Venue
2019
10.3390/s19184018
SENSORS
Keywords
Field
DocType
ultrathin tunable lens,boundary tension effect,optical imaging
Liquid film,Zoom,Optics,Focal length,Electronic engineering,Lens (optics),Engineering,Deformation (mechanics),Optical imaging,Fabrication
Journal
Volume
Issue
ISSN
19
18
1424-8220
Citations 
PageRank 
References 
0
0.34
0
Authors
5
Name
Order
Citations
PageRank
Ao Yang100.34
Jie Cao245.28
Fanghua Zhang3125.97
Yang Cheng400.34
Qun Hao56516.54