Abstract: An optical imaging system includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens sequentially disposed in numerical order along an optical axis from an object side toward an imaging plane, wherein the seventh lens includes an optical portion configured to refract light, and a rib surrounding the optical portion; the rib includes a surface-treated area disposed in a first portion of an object-side surface of the rib and a first portion of an image-side surface of the rib, a first non-treated area disposed in a second portion of the object-side surface of the rib, and a second non-treated area disposed in a second portion of the image-side surface of the rib; and the first non-treated area and the second non-treated area overlap each other when viewed in a direction of the optical axis.

Abstract: A method by which a chatbot application executed by at least one processor of a terminal provides a chatbot for rehabilitation education for a hearing loss patient, according to an embodiment of the present disclosure, includes: executing the chatbot that provides hearing loss rehabilitation content that is interactive learning content for hearing rehabilitation education for the hearing loss patient; determining the type of hearing loss rehabilitation content on the basis of the executed chatbot; providing the hearing loss rehabilitation content according to the determined type; acquiring user response data regarding an audio quiz of the provided hearing loss rehabilitation content; performing a correct/wrong processing process for determining whether or not the acquired user response data is a correct answer, and providing a result of the performed correct/wrong processing process.

Abstract: An optical imaging system includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens sequentially disposed in numerical order along an optical axis of the optical imaging system from an object side of the optical imaging system toward an imaging plane of the optical imaging system, wherein the optical imaging system satisfies 1<|f123457?f|/f, where f123457 is a composite focal length of the first to seventh lenses calculated with an index of refraction of the sixth lens set to 1.0, f is an overall focal length of the optical imaging system, and f123457 and f are expressed in a same unit of measurement.

Abstract: Disclosed is an invention related to a fan module, and a portable air purifier having same. The disclosed invention has a front end protrusion part provided on the rotation-directional front end of a fan blade provided on a fan, wherein the front end protrusion part protrudes forward in the rotational direction, from the rotation-directional front end of the fan blade, and at least a portion of the front end protrusion part further protrudes forward in the rotational direction than a connection point of a shroud and the rotation-directional front end of the fan blade.

Abstract: The present disclosure relates to a portable air purifier. The portable air purifier includes: a fan case having a narrow width portion at the front thereof and a wide width portion at the rear thereof, the narrow width portion including a space the radiuswise width of which is less than the radiuswise width of the wide width portion, and a fan blade protruding centrifugally further than the space formed inside the narrow width portion while being disposed at the wide width portion.

Abstract: The present disclosure relates to a portable air purifier. In the portable air purifier, a fan base is disposed between a fan module including a mixed flow fan and a filter, and forms a passage that connects between the filter and the fan module while coupling the filter and the fan module. Accordingly, the portable air purifier can ensure improvement in air purification performance with no increase in the size of the portable air purifier.

Abstract: The present disclosure relates to a portable air purifier and the fan module provided therin. In the disclosed invention, the portable air purifier includes a fan module that is disposed between a discharge surface and a filter, and suctions air having passed through the filter, in an axial direction, and discharges the air in a direction between the axial direction and a radial direction.

Abstract: A panel repairing apparatus and a method of repairing a display panel using the same are disclosed. The panel repairing apparatus includes a panel loader for accommodating a display panel therein, a laser repair unit for repairing the display panel by irradiating laser onto the display panel, and a press repair unit for repairing the display panel by pressurizing the display panel.

Abstract: A panel repairing apparatus and a method of repairing a display panel using the same are disclosed. The panel repairing apparatus includes a panel loader for accommodating a display panel therein, a laser repair unit for repairing the display panel by irradiating laser onto the display panel, and a press repair unit for repairing the display panel by pressurizing the display panel.

Abstract: Disclosed is system for assessing a motor function, the system including a sensor configured to acquire human body exercise information including a joint position, a joint orientation, a grasp state, or a grasp force, a processor configured to extract an exercise feature for analyzing a human body motion time and human body motion information based on the acquired human body exercise information, analyze at least one target motion for assessment based on a set assessment condition using the extracted exercise feature, classify an assessment factor of the at least one target motion for assessment as a success or a failure, and determine a final assessment score of the at least one target motion for assessment based on the classified assessment factor, and a display configured to display the final assessment score.

Abstract: Provided is an object detecting method and apparatus using a light detection and ranging (LIDAR) sensor and a radar sensor, the method may include collecting LIDAR data and radar data associated with a search region in which objects are to be found using the LIDAR sensor and radar sensor, extracting each of objects present within the search region based on the collected LIDAR data and radar data, generating shadow regions of objects extracted through the LIDAR sensor and setting an ROI of LIDAR sensor based on the extracted objects, setting an ROI of radar sensor based on a reflectivity depending on a range and a movement speed of moving object among the objects extracted through the radar sensor, comparing the ROI of the LIDAR sensor to the ROI of the radar sensor, and verifying whether the moving object is present based on a result of the comparing.

Abstract: A human detection apparatus and method using low-resolution two-dimensional (2D) light detection and ranging (LIDAR) sensor are provided. The human detection method may include receiving LIDAR data generated by reflecting a laser signal that continues to be transmitted to a search region from a plurality of objects in the search region, clustering a plurality of points included in the received LIDAR data by the same objects based on a correlation between the plurality of points, deriving a characteristic function used to identify a shape of a human, based on the clustered points, and determining whether each of the objects is a human based on the derived characteristic function.

Abstract: A mobile terminal according to an exemplary embodiment includes: a display unit including a display panel including a plurality of pixels, a scan driver including a plurality of stages connected to at least one of the plurality of pixels and supplying a scanning signal, and a data driver configured to supply a data voltage to the plurality of pixels; an eye detecting sensor configured to detect an eye position of a user with respect to the display panel; and a controller configured to generate a control signal that controls the display unit and outputting the control signal, wherein the scan driver is configured to supply a scanning signal from a stage corresponding to one region of the display panel where the eye of the user is directed.

Abstract: A method of forming a carbon coating includes heat treating lithium transition metal composite oxide Li0.9+aMbM?cNdOe, in an atmosphere of a gas mixture including carbon dioxide and compound CnH(2n+2?a)[OH]a, or compound CnH(2n), wherein M and M? are different from each other and are selected from Ni, Co, Mn, Mo, Cu, Fe, Cr, Ge, Al, Mg, Zr, W, Ru, Rh, Pd, Os, Ir, Pt, Sc, Ti, V, Ga, Nb, Ag, Hf, Au, Cs, B, and Ba, and N is different from M and M? and is selected from Ni, Co, Mn, Mo, Cu, Fe, Cr, Ge, Al, Mg, Zr, W, Ru, Rh, Pd, Os, Ir, Pt, Sc, Ti, V, Ga, Nb, Ag, Hf, Au, Cs, B, Ba, and a combination thereof, or selected from B, F, S, and P, and at least one of the M, M?, and N comprises Ni, Co, Mn, Mo, Cu, or Fe.

Abstract: A cutting insert has parallel first upper and lower faces, parallel second upper and lower faces, first and second side faces, first and second cutting portions, and first and second mounting grooves. The second upper and lower faces are perpendicular to the first upper and lower faces, respectively. The first and second side faces are located at respective ends of the cutting insert. The first cutting portion has a major cutting edge at an edge between the first upper face and the first side face, while the second cutting portion has a major cutting edge at an edge between the second upper face and the second side face. The first mounting groove curvedly or linearly extends from the first cutting portion oppositely to the second cutting portion, while the second mounting groove curvedly or linearly extends from the second cutting portion oppositely to the first cutting portion.

Abstract: A cutting insert has parallel first upper and lower faces, parallel second upper and lower faces, first and second side faces, first and second cutting portions, and first and second mounting grooves. The second upper and lower faces are perpendicular to the first upper and lower faces, respectively. The first and second side faces are located at respective ends of the cutting insert. The first cutting portion has a major cutting edge at an edge between the first upper face and the first side face, while the second cutting portion has a major cutting edge at an edge between the second upper face and the second side face. The first mounting groove curvedly or linearly extends from the first cutting portion oppositely to the second cutting portion, while the second mounting groove curvedly or linearly extends from the second cutting portion oppositely to the first cutting portion.

Abstract: A mobile terminal according to an exemplary embodiment includes: a display unit including a display panel including a plurality of pixels, a scan driver including a plurality of stages connected to at least one of the plurality of pixels and supplying a scanning signal, and a data driver configured to supply a data voltage to the plurality of pixels; an eye detecting sensor configured to detect an eye position of a user with respect to the display panel; and a controller configured to generate a control signal that controls the display unit and outputting the control signal, wherein the scan driver is configured to supply a scanning signal from a stage corresponding to one region of the display panel where the eye of the user is directed.

Abstract: A human detection apparatus and method using low-resolution two-dimensional (2D) light detection and ranging (LIDAR) sensor are provided. The human detection method may include receiving LIDAR data generated by reflecting a laser signal that continues to be transmitted to a search region from a plurality of objects in the search region, clustering a plurality of points included in the received LIDAR data by the same objects based on a correlation between the plurality of points, deriving a characteristic function used to identify a shape of a human, based on the clustered points, and determining whether each of the objects is a human based on the derived characteristic function.

Abstract: Provided is an object detecting method and apparatus using a light detection and ranging (LIDAR) sensor and a radar sensor, the method may include collecting LIDAR data and radar data associated with a search region in which objects are to be found using the LIDAR sensor and radar sensor, extracting each of objects present within the search region based on the collected LIDAR data and radar data, generating shadow regions of objects extracted through the LIDAR sensor and setting an ROI of LIDAR sensor based on the extracted objects, setting an ROI of radar sensor based on a reflectivity depending on a range and a movement speed of moving object among the objects extracted through the radar sensor, comparing the ROI of the LIDAR sensor to the ROI of the radar sensor, and verifying whether the moving object is present based on a result of the comparing.

Abstract: A method of forming a carbon coating includes heat treating lithium transition metal composite oxide Li0.9+aMbM?cNdOe, in an atmosphere of a gas mixture including carbon dioxide and compound CnH(2n+2?a)[OH]a, or compound CnH(2n), wherein M and M? are different from each other and are selected from Ni, Co, Mn, Mo, Cu, Fe, Cr, Ge, Al, Mg, Zr, W, Ru, Rh, Pd, Os, Ir, Pt, Sc, Ti, V, Ga, Nb, Ag, Hf, Au, Cs, B, and Ba, and N is different from M and M? and is selected from Ni, Co, Mn, Mo, Cu, Fe, Cr, Ge, Al, Mg, Zr, W, Ru, Rh, Pd, Os, Ir, Pt, Sc, Ti, V, Ga, Nb, Ag, Hf, Au, Cs, B, Ba, and a combination thereof, or selected from B, F, S, and P, and at least one of the M, M?, and N comprises Ni, Co, Mn, Mo, Cu, or Fe.