Dynamic Light Control Using Bionic Dielectric Elastomer Iris Actuators

Martin S, Bruns A, Franke J (2022)

Publication Language: English

Publication Type: Journal article

Publication year: 2022


Pages Range: 2112260

DOI: 10.1002/adfm.202112260


Apertures are used in optical systems to limit the luminous flux. In the human eye the iris serves this purpose but can be damaged requiring an implant, which to date is static, limiting the optical performance. The authors thus report the development of a prototype demonstrating the feasibility of a flexible dynamic iris implant manufactured with an automated manufacturing technique. The presented actuators are printed via aerosol jet printing allowing a high reliability in produced electrode quality. Through optimization of the actuator design for maximum contraction they demonstrate a pupil area reduction of 13.40% or 6.94% reduction of pupil diameter, respectively. Thereby the prototype demonstrates an illuminance reduction of 18.25% in the central visual axis. Furthermore, they present a first iteration of a bionic closed-loop control mimicking the human iris reflex thus laying the foundation for a self-controlled iris implant.

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How to cite


Martin, S., Bruns, A., & Franke, J. (2022). Dynamic Light Control Using Bionic Dielectric Elastomer Iris Actuators. Advanced Functional Materials, 2112260. https://doi.org/10.1002/adfm.202112260


Martin, Sina, Arne Bruns, and Jörg Franke. "Dynamic Light Control Using Bionic Dielectric Elastomer Iris Actuators." Advanced Functional Materials (2022): 2112260.

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