Patents by Inventor Bong Je Park
Bong Je Park has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9996199Abstract: Provided is a thin film type actuator having multi-operation points, capable of various feels of touch or sounds. The film type actuator includes an upper plate and a lower plate, formed of a single plate. Between the upper plate and the lower plate, pairs of electrode parts capable of attracting one another via an electrostatic force. Since each of the pairs of electrode parts functions as an operation point and the upper plate and the lower plate are formed of the single plate, movements of the respective operation points in such a way that a new physical movement different from an original individual movement is generated to generate a haptic feel or a sound. It is possible to generate various haptic feels or sounds by modulating and combining amplitudes and frequencies of the respective operation points.Type: GrantFiled: April 19, 2013Date of Patent: June 12, 2018Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Suntak Park, Ki-Uk Kyung, Sung Ryul Yun, Young Sung Kim, Jong-uk Lee, Bong Je Park
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Patent number: 9992433Abstract: There are provided an image processing apparatus and a control method thereof. An image processing apparatus includes an image sensor for acquiring a target image, an image processing module for performing focusing on a specific area of the acquired target image and determining a focal surface of the target image on the basis of the performed focusing, and a drive control module for controlling the curvature of the image sensor, based on the determined focal surface.Type: GrantFiled: May 25, 2016Date of Patent: June 5, 2018Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Sun Tak Park, Ki-Uk Kyung, Sae Kwang Nam, Bong Je Park, Seung Koo Park, Sung Ryul Yun
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Patent number: 9885874Abstract: A microlens array and a method for fabricating thereof are provided. The microlens array of the present invention comprises a lens structure part formed by bistable dielectric polymer thin film; first and second electrode parts each formed on the upper surface and the bottom surface of the lens structure part to apply voltage for shape changes of the lens structure part; a circuit part applying heat to the dielectric polymer thin film to change the property of the dielectric polymer thin film to be soft; and a base part formed on the bottom surface of the second electrode in predetermined intervals. The method further comprises a hydraulic part to apply predetermined voltage to the bottom surface of the lens structure part. The microlens array is thus able to change optical properties by deform the shape of a transparent dielectric polymer thin film having bistablity to various sizes of lens shapes by the purposes.Type: GrantFiled: April 7, 2014Date of Patent: February 6, 2018Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Sung-Ryul Yun, Ki-Uk Kyung, Sun-Tak Park, Bong-Je Park, Sae-Kwang Nam
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Publication number: 20180017718Abstract: Disclosed is a varifocal lens module. A varifocal lens module according to an embodiment includes a lens formed of a flexible and transparent material and having a focal length varying according to a variable shape thereof; at least one driving part expanded or contracted in response to an electric signal; and at least one structural body configured to physically or chemically connect the lens and each driving part.Type: ApplicationFiled: July 11, 2017Publication date: January 18, 2018Inventors: KI UK KYUNG, SAE KWANG NAM, SUNG RYUL YUN, BONG JE PARK, SUN TAK PARK, SEUNG KOO PARK
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Patent number: 9841621Abstract: Provided herein a display apparatus including a display panel including a first surface for displaying information and a second surface disposed opposite to the first surface, and where a curvature is formed as a physical force is applied; and a curvature changing unit bonded to at least a portion of the second surface, wherein the curvature changing unit includes a first actuator unit configured to curve the display panel when a voltage is applied and a fixing unit configured to fixate the first actuator unit.Type: GrantFiled: May 13, 2015Date of Patent: December 12, 2017Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Sun Tak Park, Ki Uk Kyung, Sung Ryul Yun, Sae Kwang Nam, Bong Je Park
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Patent number: 9746587Abstract: Disclosed herein is a shape-variable optical element including: a shape-variable lens; a first electrode unit configured to be connected to the shape-variable lens; a second electrode unit configured to face the first electrode unit; and a deformation part configured to be disposed between the first electrode unit and the second electrode unit.Type: GrantFiled: June 26, 2014Date of Patent: August 29, 2017Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Ki-Uk Kyung, Sung-Ryul Yun, Sun-Tak Park, Bong-Je Park, Sae-Kwang Nam
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Publication number: 20170214859Abstract: There is provided an optical imaging device including a flexible image sensor and an actuator that expands or contracts the flexible image sensor on a two-dimensional plane. It is possible to minimize distortion aberration and control a viewing angle and magnification.Type: ApplicationFiled: June 15, 2016Publication date: July 27, 2017Inventors: Sun Tak PARK, Ki Uk KYUNG, Sae Kwang NAM, Bong Je PARK, Seung Koo PARK, Sung Ryul YUN
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Patent number: 9662197Abstract: Provided herein is an artificial muscle capable of being miniaturized, realizing precision movement, and performing selective relaxation/contraction deformation according to the power output necessary in the muscle, the muscle including a first operation unit that includes electro-active polymer where relaxation-deformation occurs based on electric energy being applied; a heating unit that generates heat energy based on the electric being applied; a second operation unit that has a yarn structure and where contraction-deformation occurs based on the heat energy generated in the heating unit; and a control unit that applies electric energy to the first operation unit and the heating unit.Type: GrantFiled: August 4, 2015Date of Patent: May 30, 2017Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESERACH INSTITUTEInventors: Sung Ryul Yun, Ki Uk Kyung, Sae Kwang Nam, Bong Je Park, Sun Tak Park
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Patent number: 9638928Abstract: An active diffuser for reducing a speckle in accordance with an embodiment of the present invention includes: an electroactive polymer film having at least one or more scattering patterns; a first transparent electrode coated on one surface of the electroactive polymer film; and a second transparent electrode coated on the other surface of the electroactive polymer film, and a shape of the scattering pattern of the electroactive polymer film is varied by voltage applied through the first transparent electrode and the second transparent electrode.Type: GrantFiled: January 30, 2014Date of Patent: May 2, 2017Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUEInventors: Sun-Tak Park, Bong-Je Park, Ki-Uk Kyung, Sung-Ryul Yun, Sae-Kwang Nam
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Patent number: 9612362Abstract: Provided herein are an optical zoom lens capable of actively zooming in and/or out and an apparatus using the same. The optical zoom lens may include an electro-active polymer layer configured to be deformable in response to an electric signal; a lens structure formed over the electro-active polymer layer; a first electrode formed on an upper surface of the electro-active polymer layer; a second electrode formed on a lower surface of the electro-active polymer layer; and a control circuit unit configured to apply a voltage to the first electrode and the second electrode. The optical zoom lens, having a structure of a combination of the polymer lens structure and the electro-active polymer actuator, is able to embody active variation in position of the polymer lens structure body and control therefor using deformation of the electro-active polymer layer by an electric signal.Type: GrantFiled: January 26, 2016Date of Patent: April 4, 2017Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Sung Ryul Yun, Ki Uk Kyung, Sun Tak Park, Sae Kwang Nam, Bong Je Park
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Publication number: 20170068111Abstract: An auto focusing lens includes an active lens including a lens body including electroactive polymer and a transparent electrode at least partially coated on a surface of the lens body, and a controller controlling the focus of the active lens by applying a voltage to the transparent electrode.Type: ApplicationFiled: July 6, 2016Publication date: March 9, 2017Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTIT UTEInventors: Ki-Uk KYUNG, Bong Je PARK, Sang-Youn KIM, Sae Kwang NAM, Sun Tak PARK, Sung Ryul YUN
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Publication number: 20170059812Abstract: The present disclosure relates to an imaging apparatus and a method for operating the same, and more particularly, to a high-speed lens moving technique capable of effective multi-view angle and multi-focus images for a short period of time and an image photographing and sorting technique according the high-speed lens moving technique. Accordingly, the movement of lenses is performed using a new technique without applying the existing slow lens moving technique performed using a motor, etc., so that it is possible to acquire multi-view angle and multi-focus images using one imaging apparatus for a short period of time.Type: ApplicationFiled: June 20, 2016Publication date: March 2, 2017Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Ki-Uk KYUNG, Sae Kwang NAM, Bong Je PARK, Sun Tak PARK, Sung Ryul YUN
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Publication number: 20170054929Abstract: There are provided an image processing apparatus and a control method thereof. An image processing apparatus includes an image sensor for acquiring a target image, an image processing module for performing focusing on a specific area of the acquired target image and determining a focal surface of the target image on the basis of the performed focusing, and a drive control module for controlling the curvature of the image sensor, based on the determined focal surface.Type: ApplicationFiled: May 25, 2016Publication date: February 23, 2017Inventors: Sun Tak PARK, Ki-Uk KYUNG, Sae Kwang NAM, Bong Je PARK, Seung Koo PARK, Sung Ryul YUN
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Patent number: 9523797Abstract: Provided are a microlens array film and a display device including the same. The microlens array film includes a first transparent electrode and a second transparent electrode facing each other and a flexible polymer layer placed between the first and the second transparent electrodes. Lenses may be freely deformed by regulating voltages applied to the first and second transparent electrodes.Type: GrantFiled: September 17, 2013Date of Patent: December 20, 2016Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Sung Ryul Yun, Ki-Uk Kyung, Suntak Park, Bong Je Park, Young Sung Kim
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Publication number: 20160266376Abstract: Provided herein are a reflective lens capable of changing a focal length and an optical system using the same. An active reflective lens according to an embodiment includes: a lens unit including material that is deformable in response to an electric signal; a support unit configured to support the lens unit; a base unit formed below the support unit; a first electrode formed on the lens unit; and a second electrode formed on the base unit. The distance between the first electrode and the second electrode is determined depending on a shape of an upper surface of the base unit, and the distance between the first electrode and the second electrode varies depending on regions of the lens unit.Type: ApplicationFiled: March 9, 2016Publication date: September 15, 2016Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTIT UTEInventors: Sae Kwang NAM, Sun Tak PARK, Ki Uk KYUNG, Bong Je PARK, Sung Ryul YUN
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Publication number: 20160216492Abstract: Provided herein are an optical zoom lens capable of actively zooming in and/or out and an apparatus using the same. The optical zoom lens may include an electro-active polymer layer configured to be deformable in response to an electric signal; a lens structure formed over the electro-active polymer layer; a first electrode formed on an upper surface of the electro-active polymer layer; a second electrode formed on a lower surface of the electro-active polymer layer; and a control circuit unit configured to apply a voltage to the first electrode and the second electrode. The optical zoom lens, having a structure of a combination of the polymer lens structure and the electro-active polymer actuator, is able to embody active variation in position of the polymer lens structure body and control therefor using deformation of the electro-active polymer layer by an electric signal.Type: ApplicationFiled: January 26, 2016Publication date: July 28, 2016Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Sung Ryul YUN, Ki Uk KYUNG, Sun Tak PARK, Sae Kwang NAM, Bong Je PARK
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Publication number: 20160206420Abstract: Provided herein is an artificial muscle capable of being miniaturized, realizing precision movement, and performing selective relaxation/contraction deformation according to the power output necessary in the muscle, the muscle including a first operation unit that includes electro-active polymer where relaxation-deformation occurs based on electric energy being applied; a heating unit that generates heat energy based on the electric being applied; a second operation unit that has a yarn structure and where contraction-deformation occurs based on the heat energy generated in the heating unit; and a control unit that applies electric energy to the first operation unit and the heating unit.Type: ApplicationFiled: August 4, 2015Publication date: July 21, 2016Inventors: Sung Ryul YUN, Ki Uk Kyung, Sae Kwang Nam, Bong Je Park, Sun Tak Park
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Touch panel providing tactile feedback in response to variable pressure and operation method thereof
Patent number: 9323328Abstract: A touch panel according to an embodiment of the present invention includes: a pressure detection unit including a light-source unit configured to generate an optical signal, an optical waveguide configured to transfer the optical signal, a sensing unit contacting with the optical waveguide to receive the optical signal according to an intensity of pressure applied externally, and a light-receiving unit configured to receive the optical signal transferred through the optical waveguide from the sensing unit; and an actuator contacting with the pressure detection unit to cause a deformation of a material according to the pressure intensity, wherein the actuator provides a tactile feedback through a vibration according to the pressure intensity.Type: GrantFiled: September 3, 2013Date of Patent: April 26, 2016Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Young Sung Kim, Ki-Uk Kyung, Suntak Park, Bong Je Park, Sung Ryul Yun, Han Saem Lee, Mi Joeng Choi -
Patent number: 9310532Abstract: Disclosed is a variable Fresnel lens, including: an electric active polymer layer of which a form is deformed by an electric field; and a Fresnel lens coupled to an upper portion of the electric active polymer layer, and configured to change a position of a focus according to deformation of the form of the electric active polymer layer.Type: GrantFiled: April 4, 2014Date of Patent: April 12, 2016Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Sun Tak Park, Ki Uk Kyung, Bong Je Park, Sung Ryul Yun, Sae Kwang Nam
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Publication number: 20160066445Abstract: Provided herein a display apparatus including a display panel including a first surface for displaying information and a second surface disposed opposite to the first surface, and where a curvature is formed as a physical force is applied; and a curvature changing unit bonded to at least a portion of the second surface, wherein the curvature changing unit includes a first actuator unit configured to curve the display panel when a voltage is applied and a fixing unit configured to fixate the first actuator unit.Type: ApplicationFiled: May 13, 2015Publication date: March 3, 2016Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Sun Tak PARK, Ki Uk KYUNG, Sung Ryul YUN, Sae Kwang NAM, Bong Je PARK