Patent application number | Description | Published |
20080284277 | ELECTROACTIVE POLYMER ACTUATOR AND MANUFACTURING METHOD THEREOF - An electroactive polymer actuator and a method for manufacturing the electroactive polymer actuator are provided. The electroactive polymer actuator includes an actuator unit which is a laminate of a plurality of deformation layers; and a support layer which supports the actuator unit so that the actuator unit provides displacement corresponding to a voltage if the voltage is applied to the actuator unit. Therefore, it is possible to provide an electroactive polymer actuator suitable for a compact mobile device with a low driving voltage. | 11-20-2008 |
20080292814 | IMAGE FORMING ELEMENT AND FABRICATING METHOD THEREOF, AND IMAGE FORMING APPARATUS - An image forming element, a fabricating method of the image forming element, and an image forming apparatus having the image forming element is provided. The image forming element includes a drum body, a driving circuit mounted within the drum body, a support plate which penetrates through the drum body longitudinally along the drum body, the support plate being coupled to the driving circuit, an insulating layer formed on at least one portion of an outer circumference of the drum body, a conductive polymer layer formed on the insulating layer, the conductive polymer layer including one or more conductive areas and one or more insulating areas, which are aligned in an alternating pattern, and a protective layer formed on the conductive polymer layer, wherein the conductive areas on the conductive polymer layer are electrically connected to the driving circuit. Therefore, an image forming element can be provided in which a conductive layer is formed so that conductive areas and insulating areas are patterned without stepped portions therebetween, simplifying the fabricating process and improving the precision. | 11-27-2008 |
20090097140 | VARIFOCAL OPTICAL DEVICE - A varifocal optical device is provided. The varifocal optical device includes an optical lens, an actuator unit connected with the optical lens and having two areas that are bending-deformed in opposite directions to each other when a voltage is applied thereto, and a supporting unit to support the actuator unit, so that a focus of the optical lens is varied by the bending deformation when the voltage is applied to the actuator unit. Thereby, a driving displacement of the varifocal optical lens can be maximized. | 04-16-2009 |
20090127439 | IMAGE SENSING APPARATUS WITH ARTIFICIAL OMMATIDIA AND MANUFACTURING METHOD FOR ARTIFICIAL OMMATIDIA UNIT - An image sensing apparatus with artificial ommatidia includes an imaging optical lens group forming a concave focal surface, an artificial ommatidia unit having a curved top surface corresponding to the concave focal surface and a flat bottom surface, and an image sensor disposed under the artificial ommatidia unit. The artificial ommatidia unit is disposed under the imaging optical lens group so that the curved top surface is coincided with the concave focal surface of the imaging optical lens group. The artificial ommatidia unit having a plurality of artificial ommatidia collects light emitting from the imaging optical lens group, and guides the light to the bottom surface thereof. | 05-21-2009 |
20090147371 | OPTICAL LENS AND MANUFACTURING METHOD THEREOF - A liquid optical lens which changes a focus due to a change in a shape of a translucent elastic membrane according to a change in a fluid pressure of a lens chamber and a manufacturing method thereof are provided. The liquid optical lens forms a dampproof coating membrane on the translucent elastic membrane to prevent a fluid from permeating through the translucent elastic membrane and a swelling phenomenon of the translucent elastic membrane. | 06-11-2009 |
20100046004 | PATTERN PROJECTING APPARATUS, THREE DIMENSIONAL IMAGING APPARATUS HAVING THE SAME, AND VARIFOCAL LIQUID LENS BEING USED IN THE SAME - A pattern projecting apparatus usable with a three-dimensional imaging apparatus includes a light generator which emits a light beam, and a pattern adjusting unit disposed in front of the light generator. The pattern adjusting unit forms a projection pattern on an object, and adjusts a focus of the light beam emitted from the light generator. | 02-25-2010 |
20100110606 | TUNABLE CAPACITOR USING ELECTROWETTING PHENOMENON - A tunable capacitor using an electrowetting phenomenon includes a first electrode; a second electrode which is spaced apart from the first electrode and faces the first electrode; a fluidic channel which is disposed between the first electrode and the second electrode; a first insulating layer which is disposed between the first electrode and the fluidic channel; and a conductive fluid which is disposed in the fluidic channel and moves along the fluidic channel when a direct current (DC) potential difference occurs between the first and second electrodes. Accordingly, it is possible to fabricate the tunable capacitor with the simplified fabrication process, good reliability and durability, and no restriction on the tuning range. | 05-06-2010 |
20100128359 | VARIFOCAL LENS AND METHOD OF MANUFACTURING THE SAME - Provided is a varifocal lens and method of manufacturing the varifocal lens. The varifocal lens includes a transparent substrate, a spacer frame arranged to form an inner space on the transparent substrate, wherein the inner space is to be filled with an optical fluid, a rigid frame disposed to be adjacent to the spacer frame, and an optical membrane and an actuator which are formed on a surface of the rigid frame. The rigid frame supports the actuator and the optical membrane, wherein the actuator applies a pressure to an optical fluid and the optical membrane is modified according to a flow of the optical fluid. | 05-27-2010 |
20100148635 | SOLID ELECTROLYTE POLYMER, POLYMER ACTUATOR USING CROSS-LINKED POLYVINYLIDENE FLUORIDE-BASED POLYMER, AND METHOD OF MANUFACTURING THE POLYMER ACTUATOR - A solid electrolyte polymer including a cross-linked polyvinylidene fluoride (PVDF)-based polymer, and a polymer actuator including the cross-linked PVDF-based polymer and an electrolytic material. | 06-17-2010 |
20100165475 | VARIFOCAL LENS - Varifocal lens for camera module incorporated in wireless mobile communication device is provided. The varifocal lens includes: a membrane; a frame which is fixed to the membrane and has a receiving hole formed in the middle; a transparent substrate which is fixed to the frame to seal optical fluid received in the receiving hole; one or more actuators to change a curvature of a fluid lens part by bending the circumference of the fluid lens part formed around a central portion of the receiving hole; and a restriction lessening member which is adapted to lessen a restrictive force of an edge of the fluid lens part, is made of a transparent material, has with an area smaller than the fluid lens part to correspond to an inner side of the fluid lens part except the edge of the fluid lens part, and has a larger Young's modulus than the membrane. | 07-01-2010 |
20100201227 | POLYMER AND POLYMER ACTUATOR COMPRISING THE SAME - Provided are a polymer and a polymer actuator including the polymer. The polymer is cross-linked by a cross-linking agent. When the polymer is used in the polymer actuator, the polymer actuator shows a high strain and may be stably operated at high temperatures. | 08-12-2010 |
20140001924 | POLYMER AND POLYMER ACTUATOR COMPRISING THE SAME | 01-02-2014 |