Abstract:
The present invention provides optical systems, devices and methods which utilize one or more electroactive polymer actuators to provide shutter and/or aperture control.
Abstract:
Electroactive polymer transducers are disclosed. They are biased in a manner that provides for increased force and/or stroke output, thereby offering improved work potential and power output capacity. The biasing may offer additional or alternate functional advantage in terms of matching transducer performance with a given application such as a normally-closed valve. The improved biasing (including increased output biasing) may utilize negative spring rate biasing and/or a combination of negative or zero-rate biasing with positive rate biasing to achieve the desired ends.
Abstract:
The present invention provides optical systems, devices and methods which utilize one or more electroactive polymer actuators to stabilize the image produced by the device or system.
Abstract:
The present invention provides electroactive polymer transducers configured for surface mode deformation to provide thickness mode actuation. The inventive transducers may find use in various applications, including but not limited to haptic feedback for user interface devices (e.g., key buttons, key pads, touch pads, touch screens, touch plates, touch sensors, etc.), fluid movement and control mechanism such as pumps and valves, breaking and clutch mechanisms, power generation, sensing, etc.
Abstract:
Electroactive transducers as well as methods of producing a haptic effect in a user interface device simultaneously with a sound generated by a separately generated audio signal and electroactive polymer transducers for sensory feedback applications in user interface devices are disclosed.
Abstract:
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.
Abstract:
The present invention provides optical systems, devices and methods which utilize one or more electroactive polymer actuators to stabilize the image produced by the device or system.