Artificial Muscle Inc.

United States

Artificial Muscle Inc.

United States
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Swindells C.,Artificial Muscle Inc. | Pietarinen S.,Idean Inc | Viitanen A.,Idean Inc
IEEE Haptics Symposium, HAPTICS | Year: 2014

Vibrotactile feedback is strongly influenced by both accompanying audio and video feedback. Nevertheless, most tools and techniques focus on haptics in isolation during prototyping. We present the ViviTouch® Studio as a novel research tool that facilitates rapid prototyping of audio + video + vibrotactile feedback. Our tool also demonstrates a multimodal rapid prototyping architecture process that works on most operating systems and devices without custom embedded controllers or real-time operating systems. Easy A/B comparisons between different actuators, such as eccentric rotating masses, linear resonant actuators, piezoelectric elements, voice coils and electroactive polymers, are supported. © 2014 IEEE.


Biggs J.,Artificial Muscle Inc. | Danielmeier K.,Bayer AG | Hitzbleck J.,Bayer AG | Krause J.,Bayer AG | And 7 more authors.
Angewandte Chemie - International Edition | Year: 2013

We present the development and applications of dielectric elastomers. For the last 10 years the significance of this class of polymers has risen as more applications seem possible and first products have been commercialized. A stretch of the imagination: Electroactive polymers and especially dielectric elastomers have become more significant over the last 10 years as more applications seem possible and first products have been commercialized. The general principles of dielectric elastomers and recent developments in the field are described. The most promising developments are based on polyurethane and silicone systems. The picture shows one of the first commercial actuators based on electroactive polymers. Copyright © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.


Biggs S.J.,Artificial Muscle Inc. | Hitchcock R.N.,Artificial Muscle Inc.
Proceedings of SPIE - The International Society for Optical Engineering | Year: 2010

Electroactive Polymer Artificial Muscles (EPAM™) based on dielectric elastomers have the bandwidth and the energy density required to make haptic displays that are both responsive and compact. Recent work at Artificial Muscle Inc. has been directed toward the development of thin, high-fidelity haptic modules for mobile handsets. The modules provide the brief tactile "click" that confirms key press, and the steady state "bass" effects that enhance gaming and music. To design for these capabilities we developed a model of the physical system comprised of the actuator, handset, and user. Output of the physical system was passed through a transfer function to covert vibration into an estimate of the intensity of the user's haptic sensation. A model of fingertip impedance versus button press force is calibrated to data, as is impedance of the palm holding a handset. An energy-based model of actuator performance is derived and calibrated, and the actuator geometry is tuned for good haptic performance. © 2010 Copyright SPIE - The International Society for Optical Engineering.


Patent
Artificial Muscle Inc. | Date: 2011-04-18

The present invention provides portable multipoint tenter made from a rotating ring with a plurality of curved slots for placement in each of a first prong of a plurality of two-prong, guide pins, a circular base plate with a plurality of straight slots for placement of the first prong and a second prong of the plurality of two-prong guide pins and a contact pad attached to each of the second prongs. The inventive portable multipoint tenter helps to assure asymmetrical stzetch and is customizable so it can be made with various numbers of pads with minimal redesign. Because the inventive device is hand powered rather than electrical, the device is both portable and environmentally friendly.


Patent
Artificial Muscle Inc. | Date: 2010-04-23

Electroactive polymer transducers for sensory feedback applications are disclosed.


Patent
Bayer AG and Artificial Muscle Inc. | Date: 2011-04-01

An electromechanical converter comprises a dielectric elastomer layer (1) designed as one piece and having a first side and a second side opposite the first side. The first and the second side of the dielectric elastomer layer (1) are corrugated in the same direction as each other with the formation of ridges (2) and furrows (3). The dielectric elastomer layer (1) comprises a polyurethane polymer, the first side of the dielectric elastomer layer (1) being in contact with a first electrode (4) and the second side of the dielectric elastomer layer (1) being in contact with a second electrode (5) and the first and second electrode (4, 5) having a same-directional corrugated design corresponding to the first and second side of the dielectric elastomer layer (1).


Patent
Artificial Muscle Inc. | Date: 2010-04-28

The present invention provides optical systems, devices and methods which utilize one or more electroactive films to adjust an optical parameter of the optical device/system.


Patent
Artificial Muscle Inc. | Date: 2010-03-15

Transducers employing electroactive polymer films are disclosed.


Patent
Artificial Muscle Inc. | Date: 2010-03-15

The present invention provides optical systems, devices and methods which utilize one or more electroactive polymer actuators to adjust an optical parameter of the optical device or system.


Patent
Artificial Muscle Inc. | Date: 2010-03-18

The present invention provides optical systems, devices and methods which utilize one or more electroactive polymer actuators to adjust an optical parameter of the optical device or system.

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