Kiveste, Harti ; Haus, Henry ; Gatti, Davide ; Schlaak, Helmut F. ; Aabloo, Alvo ; Kiefer, Rudolf (2014)
Autofocus Fluid Lens Device with Implementation of Dielectric Electroactive Polymer Actuators.
ACTUATOR14, 14th International Conference on New Actuators and 8th International Exhibition on Smart Actuators and Drive Systems. Bremen, Germany (23.06.2014-25.06.2014)
Konferenzveröffentlichung, Bibliographie
Kurzbeschreibung (Abstract)
We produced an autofocus liquid lens based on meniscus changes of an oil/water interface caused by fieldinduced deformation of a dielectric elastomer stack actuator (DESA). The new DESA design integrated in the liquid lens is based on a circular actuator with a round hole in the middle (diameter: 4 mm) where the oil/water interface is located. Due to the surface tension between the two immiscible liquids (oil/water) a meniscus forms in proximity of the hole of the actuator membrane that can operate as a lens. The goal of this research was to apply and investigate encapsulated dielectric elastomer actuators (DEA) in liquid environments for producing a prototype autofocus lens. When the DEA membrane is applied a high voltage, the hole dimension changes by contraction of the DEA membrane, together with the curvature of the meniscus formed between oil and water. Consequently, the focus plane of a laser beam passing through the liquid lens changes. Configurations with DESA actuator or single-layered membranes are tested. Depending on the DEA membrane thicknesses (45 to 100 μm), the maximum applied voltage varied from 1150 to 2250 V.
| Typ des Eintrags: | Konferenzveröffentlichung |
|---|---|
| Erschienen: | 2014 |
| Autor(en): | Kiveste, Harti ; Haus, Henry ; Gatti, Davide ; Schlaak, Helmut F. ; Aabloo, Alvo ; Kiefer, Rudolf |
| Art des Eintrags: | Bibliographie |
| Titel: | Autofocus Fluid Lens Device with Implementation of Dielectric Electroactive Polymer Actuators |
| Sprache: | Englisch |
| Publikationsjahr: | 23 Juni 2014 |
| Veranstaltungstitel: | ACTUATOR14, 14th International Conference on New Actuators and 8th International Exhibition on Smart Actuators and Drive Systems |
| Veranstaltungsort: | Bremen, Germany |
| Veranstaltungsdatum: | 23.06.2014-25.06.2014 |
| Kurzbeschreibung (Abstract): | We produced an autofocus liquid lens based on meniscus changes of an oil/water interface caused by fieldinduced deformation of a dielectric elastomer stack actuator (DESA). The new DESA design integrated in the liquid lens is based on a circular actuator with a round hole in the middle (diameter: 4 mm) where the oil/water interface is located. Due to the surface tension between the two immiscible liquids (oil/water) a meniscus forms in proximity of the hole of the actuator membrane that can operate as a lens. The goal of this research was to apply and investigate encapsulated dielectric elastomer actuators (DEA) in liquid environments for producing a prototype autofocus lens. When the DEA membrane is applied a high voltage, the hole dimension changes by contraction of the DEA membrane, together with the curvature of the meniscus formed between oil and water. Consequently, the focus plane of a laser beam passing through the liquid lens changes. Configurations with DESA actuator or single-layered membranes are tested. Depending on the DEA membrane thicknesses (45 to 100 μm), the maximum applied voltage varied from 1150 to 2250 V. |
| Freie Schlagworte: | liquid lens, dielectric elastomer transducers |
| Fachbereich(e)/-gebiet(e): | 18 Fachbereich Elektrotechnik und Informationstechnik > Mikrotechnik und Elektromechanische Systeme 18 Fachbereich Elektrotechnik und Informationstechnik > Institut für Elektromechanische Konstruktionen (aufgelöst 18.12.2018) 18 Fachbereich Elektrotechnik und Informationstechnik |
| Hinterlegungsdatum: | 17 Feb 2015 08:08 |
| Letzte Änderung: | 17 Feb 2015 08:08 |
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