Abstract: Disclosed are an apparatus and a method for sensing pressure using an optical waveguide sensor. The apparatus for sensing pressure using an optical waveguide sensor, includes: a light source radiating light; an optical waveguide panel emitting some of the radiated light outside through a plurality of light transmitting regions previously formed, and changing an amount of totally reflected light according to pressure applied to at least one of the plurality of light transmitting regions; a detector detecting the amount of light; and an analyzer determining intensity and a location of the pressure according to the detected amount of light.

Abstract: Provided herein is an endoscope comprising an end portion configured to take an image; a controller configured to control the end portion and process the image input by the end portion; and a connector configured to connect the end portion and the controller, wherein the end portion is provided with at least one lens apparatus surrounding an exterior surface of the end portion, the lens apparatus being adapted to be brought to various focuses, thereby providing an effect of obtaining images from various viewpoints at a short period of time, and when used as an endoscope, obviating the need to move the multi-view and multi-focused variable lens at the end portion, making it possible to reduce the thickness of the connector that connects the end portion of the endoscope with the controller.

Abstract: Provided herein is a reflective varifocal lens configured to change a focal length using an electric signal, the lens including a first electrode layer having conductivity; an electric active polymer layer formed on the first electrode layer; a second electrode layer having conductivity formed on the electric active polymer layer; and a reflective layer configured to reflect a light entering towards the first electrode layer or second electrode layer, wherein a shape of the electric active polymer layer is changed by the electric signal being applied to the first electrode layer and second electrode layer, and as the shape of the electric active polymer layer changes, a shape of the reflective layer changes, thereby changing a focal length of a reflective light.

Abstract: An optical read/write device in accordance with an embodiment of the present invention includes a lens portion configured to irradiate light emitted from a light source to an optical recording medium, and the lens portion includes: a flexible shape-variable lens; and an electrode portion provided on the shape-variable lens. The shape of the shape-variable lens can be changed when voltage is applied to the electrode.

Abstract: Provided herein a tunable lens system including a lens having a transparent solid material; and a lens focus adjuster disposed below the lens, and configured such that its area contracts or expands based on the electric energy applied and transforms the shape of the lens correspondingly to the contracted or expanded area so as to adjust the focus of the lens.

Abstract: Disclosed are an electronic device case for providing tactile feedback and an operation method thereof. The electronic device case for providing tactile feedback, includes: a communication interface unit receiving a control signal from an electronic device according to an operation of the electronic device; an actuator driver generating an electric signal corresponding to preset tactile pattern data according to the received control signal; and one or more film type actuators provided to contact the actuator driver and varying physical properties according to the control signal.

Abstract: 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.

Abstract: An autostereoscopic 3D image display apparatus is disclosed. The autostereoscopic 3D image display apparatus in accordance with an embodiment of the present invention can include: an image display unit configured to display an image; a micro lens array arranged above the image display unit and configured to vary a focus of an image from the image display unit; and an electrode coated on the micro lens array and configured to have an electric signal supplied thereto to cause transformation of the micro lens array.

Abstract: The present disclosure relates to a surface light emitting apparatus including: a light source bar including a light source for generating an optical signal; at least one optical distributor for dividing the optical signal generated in the light source into a plurality of optical signals; a light guide plate for confining the plurality of optical signals divided by the optical distributor in an inside thereof and transfer the optical signals; and a scattering pattern formed on a surface of the light guide plate and for emitting a light by the optical signal transferred through the light guide plate.

Abstract: 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.

Abstract: 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.

Abstract: Provided is a variable-shape optical element including a variable-shape lens, an actuator connected to the variable-shape lens, and a support configured to support the actuator. Here, the actuator may vary in shape according to an electrical signal.

Abstract: 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.

Abstract: An optical read/write device in accordance with an embodiment of the present invention includes a lens portion configured to irradiate light emitted from a light source to an optical recording medium, and the lens portion includes: a flexible shape-variable lens; and an electrode portion provided on the shape-variable lens. The shape of the shape-variable lens can be changed when voltage is applied to the electrode.

Abstract: Disclosed is a display device including a plurality of channels for forming a specific pattern, in which each of the channels includes: a light source module comprising one or more light sources for generating optical signals having different wavelengths; a driving module for controlling on/off or strength of the optical signal generated in the light source module; an optical waveguide for transferring the optical signal generated in the light source module to an outside without a loss of the optical signal; and a scattering pattern for scattering the optical signal transferred through the optical waveguide and displaying the scattered optical signal to the outside.

Abstract: A button for providing visual-haptic information includes a visual-haptic variable button that adaptively provides various types of visual-haptic information according to input of information to an electronic apparatus. The visual-haptic variable button includes a visual information output part that adaptively changes various types of button icons according to manipulation and touch of the visual-haptic variable button for the input of information, thereby outputting visual information, and a haptic information output part that adaptively changes various types of sense of button manipulation and sense of button touch according to the manipulation and touch of the visual-haptic variable button, thereby outputting haptic information. At least one visual-haptic variable button is provided in the electronic apparatus for the input of information.

Abstract: A terminal for providing visual-haptic information includes a visual-haptic keypad that displays and provides the visual-haptic information. The visual-haptic keypad includes: a button frame of a plurality of buttons provided in the visual-haptic keypad; a visual display layer positioned under the button frame in a vertical direction on a basis of the button frame; and a haptic display layer positioned under the visual display layer in the vertical direction on the basis of the button frame. The button frame and the visual display layer are fixedly bonded to boundary portions of the plurality of buttons.

Abstract: Disclosed herein are an apparatus and method for providing a haptic effect using a sound effect. The apparatus includes an audio filter storage unit, an acquisition unit, an analysis unit, a message configuration unit, and a haptic output unit. The audio filter storage unit stores a plurality of adaptive audio filters. The acquisition unit obtains sound effects output by an electronic device in response to an application or a user input event. The analysis unit analyzes the frequency components of each of the sound effects. The message configuration unit detects at least one of the adaptive audio filters from the audio filter storage unit, and generates a haptic output message, corresponding to the sound effect. The haptic output unit outputs a haptic effect based on the haptic output message. The adaptive audio filter dynamically varies depending on the application or the user input event.

Abstract: 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.

Abstract: Disclosed is a haptic feedback case for electronic equipment, including: a main body configured to accommodate the electronic equipment; a communication unit configured to receive haptic generation information from the electronic equipment; a filmy type actuator configured to generate haptic sensations; and a control unit configured to operate the film type actuator according to the haptic generation information input from the communication unit.