Abstract
Multifunctional integration is the development direction of electrowetting liquid lenses. We propose an electrowetting liquid lens integrating adaptive liquid iris (ELL-LI) with adjustable radial aperture and axial position. The liquid iris and the liquid lens are both driven by electrowetting on dielectric and integrated in the same chamber together, and share the same conductive liquid part. The liquid iris does not need the flat support of a traditional liquid iris. The aperture can change from 1.16 to 5.11 mm. The iris can move up and down in the axial direction, according to different working electrodes on the side wall. Experiments show that our proposed ELL-LI has the functions of depth of field expansion and field adjustment, which has a great application prospect in imaging systems, such as camera imaging systems, etc.
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