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Dive into the research topics where Liane Koker is active.

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Featured researches published by Liane Koker.


At-automatisierungstechnik | 2016

Konzept und Realisierung eines optischen Mikrosystems zur Wiederherstellung der Akkommodation

Ulrich Gengenbach; Christoph Beck; Helmut Guth; Liane Koker; Markus Krug; Thomas Martin; Jörg Nagel; Ingo Sieber; Peter Stiller; Oliver Stachs; Rudolf Guthoff

Zusammenfassung Akkommodation, die Fähigkeit von der Nähe bis in die Ferne scharf zu sehen, ist mit ca. 50 Jahren so stark eingeschränkt, so dass wir eine Sehhilfe, z. B. eine Brille, verwenden müssen. Ein neuer Ansatz zwischen unendlich und Lesedistanz eine stufenlose Akkommodation wiederherzustellen, ist die Implantation eines optischen Mikrosystems anstelle einer Intraokularlinse. Es werden Konzept und Realisierung des Systems als Funktionsmodell im Maßstab 2:1 beschrieben.


Current Directions in Biomedical Engineering | 2018

Reflection on boon and bane of Water Absorbing Components in Active Implants during Package Testing and Operation

Liane Koker; Ulrich Gengenbach; Georg Bretthauer

Abstract For package testing of active implants internal humidity measurements are performed. Thereby, the water absorbency of the measurement components can affect the measurement result, leading to an erroneously prolonged predicted lifetime. Here, the influence of internal components is discussed using an exemplary setup. It is described how to model and consider the components’ absorbencies for lifetime estimation and how beneficial they are during implant operation.


At-automatisierungstechnik | 2016

Automation of the test procedure for accelerated aging of implant packages

Liane Koker; Jörg Nagel; Bernhard Schulz; Fabian Ritter; Stefan Vollmannshauser; Heino Besser; Ulrich Gengenbach

Abstract An automated accelerated aging test procedure is presented to estimate the lifetime of implant packages regarding hermeticity. Intruding humidity is captured automatically in packages at two elevated temperatures using a resonant circuit comprised of capacitive humidity sensor and coil in coupling with an external coil. Described are the test stand setup including sensor calibration and evaluation, data acquisition and processing. In a first application the safe and reliable operation of the setup is demonstrated.


Archive | 2014

SENSOR SYSTEM FOR DETERMINING THE CONTROL SIGNALS ACTIVATING CILIARY MUSCLES

Helmut Guth; Ulrich Gengenbach; Georg Bretthauer; Jan Fliedner; Christoph Beck; Markus Krug; Thomas Martin; Joerg Nagel; Liane Koker; Ingo Sieber


advances in computer human interaction | 2017

Bonding of flexible multilayer printed systems based ob PET-substrates. An investigation of challenges and promising approaches

Liane Koker; Anu Paul; Didem Kinay; Jan-Hendric Rakebrandt; Heino Besser; Daniel Moser; Martin Ungerer; Ulrich Gengenbach


ACHI 2017 : 10th International Conference on Advances in Compter-Human Interactions, Nice, F, March 19-23, 2017. Ed.: R. Oberhauser | 2017

Bonding of flexible multilayer printed systems based on PET-substrates. An investigation of challenges and promising approaches

Liane Koker; Anu Paul; Didem Kinay; Jan-Hendric Rakebrandt; Heino Besser; Daniel Moser; Martin Ungerer; Ulrich Gengenbach


Archive | 2015

Means for controlling the accommodation demand detection in an artificial accommodation system

Helmut Guth; Ulrich Gengenbach; Georg Bretthauer; Jan Rothmund; Liane Koker; Joerg Nagel; Thomas Martin; Christoph Beck


Archive | 2015

Sensor und Sensorsystem für die Erfassung einer Augapfelorientierung sowie eine akkommodierende Kontaktlinse mit einem solchen Sensor oder Sensorsystem Sensor and sensor system for detecting a Augapfelorientierung and accommodative contact lens with such a sensor or sensor system

Christoph Beck; Georg Bretthauer; Jan Fliedner; Ulrich Gengenbach; Helmut Guth; Markus Krug; Thomas Martin; Jörg Nagel; Liane Koker; Ingo Sieber


Archive | 2014

Mittel zur Steuerung der Akkommodationsbedarfserfassung in einem künstlichen Akkommodationssystem Means for controlling the Akkommodationsbedarfserfassung in an artificial accommodation

Christoph Beck; Georg Bretthauer; Jan Fliedner; Ulrich Gengenbach; Helmut Guth; Liane Koker; Thomas Martin; Jörg Nagel


Archive | 2014

Means for controlling the Akkommodationsbedarfserfassung in an artificial accommodation

Christoph Beck; Georg Bretthauer; Jan Fliedner; Ulrich Gengenbach; Helmut Guth; Liane Koker; Thomas Martin; Jörg Nagel

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Ulrich Gengenbach

Karlsruhe Institute of Technology

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Christoph Beck

Karlsruhe Institute of Technology

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Georg Bretthauer

Karlsruhe Institute of Technology

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Helmut Guth

Karlsruhe Institute of Technology

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Jörg Nagel

Karlsruhe Institute of Technology

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Thomas Martin

Karlsruhe Institute of Technology

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Jan Fliedner

Karlsruhe Institute of Technology

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Markus Krug

Karlsruhe Institute of Technology

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Joerg Nagel

Karlsruhe Institute of Technology

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Fabian Ritter

Karlsruhe Institute of Technology

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