Abstract: An optical imaging lens includes a first lens element to a seventh lens element from an object side to an image side in order along an optical axis, and each lens element has an object-side surface and an image-side surface. An optical axis region of the object-side surface of the third lens element is convex, an optical axis region of the object-side surface of the fourth lens element is concave, an optical axis region of the image-side surface of the fifth lens element is concave, the sixth lens element has positive refracting power and a periphery region of the object-side surface of the sixth lens element is concave, an optical axis region of the object-side surface of the seventh lens element is concave, and the optical imaging lens satisfies the conditions: ?2+?3+?6?110.000 and (T1+T7)/(G12+T2+G45)?2.500.

Abstract: An optical imaging lens includes a first lens element to a seventh lens element. A periphery region of the image-side surface of the first lens element is concave, a periphery region of the object-side surface of the third lens element is concave, the fourth lens element has negative refracting power, an optical-axis region of the object-side surface of the fifth lens element is concave, an optical-axis region of the object-side surface of the sixth lens element is convex and an optical-axis region of the object-side surface of the seventh lens element is concave. EFL is an effective focal length of the optical imaging lens, BFL is a distance from the image-side surface of the seventh lens element to an image plane, AAG is a sum of six air gaps and T1 is a thickness of the first lens element to satisfy EFL/BFL?4.800 and AAG/T1?2.000.

Abstract: An optical imaging lens is provided. The optical imaging lens includes a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element, a sixth lens element, a seventh lens element and an eighth lens element sequentially arranged along an optical axis from an object side to an image side. Each of the first lens element to the eighth lens element comprises an object-side surface facing the object side and allowing imaging rays to pass through and an image-side surface facing the image side and allowing the imaging rays to pass through. The second lens element has negative refracting power. The fifth lens element has positive refracting power. An optical axis region of the image-side surface of the seventh lens element is convex. Lens elements of the optical imaging lens are only the eight lens elements described above.

Abstract: An optical imaging lens, including a first lens element and a second lens element arranged in sequence from an object side to an image side along an optical axis. Each of the first lens element and the second lens element includes an object-side surface facing the object side and allowing imaging rays to pass through and an image-side surface facing the image side and allowing the imaging rays to pass through. An optical axis region of the image-side surface of the second lens element is concave, and a periphery region of the image-side surface of the second lens element is convex.

Abstract: The present application provides a touch device and a driving method thereof. The touch device comprises a touch panel and a touch drive IC, and the touch panel is provided with multiple driving circuits and multiple sensing circuits. The driving method comprises: inputting two drive signals having an equal amplitude and opposite phases to the driving circuits; obtaining sensing signals by means of the sensing circuits; and removing or attenuating original noise signals comprised in the sensing signals by means of the touch drive IC.

Abstract: A computer-implemented method for representing environmental elements includes receiving scan data comprising at least a point cloud representing at least an environmental element from a sensor, segmenting the point cloud into point clusters, and partitioning the point clusters into hierarchical grids. The method also includes establishing a Gaussian distribution for points in each cell of each of the hierarchical grids, and constructing a Gaussian Mixture Model based on the Gaussian distribution for representing the environmental element.

Abstract: The present disclosure provides a flexible touch device. The flexible touch device includes a processor, transmit electrodes, and receive electrodes; wherein the processor is configured to acquire a self-capacitance of the receive electrode and a mutual capacitance between the transmit electrode and the receive electrode, and determine a current state of the flexible touch device based on variations of the self-capacitance and the mutual capacitance. The present disclosure further provides a state determining method and an electronic device.

Abstract: A touch determination method and a touch device. The touch determination method is applied to a touch device having a non-uniform thickness, and including: obtaining a position coordinate range (xa, xb) based on sensing signal data generated by a touch operation of a user on the touch panel; and selecting one coordinate xm from the position coordinate range (xa, xb), and obtaining a touch center position coordinate through compensation based on the coordinate xm.

Abstract: An optical imaging lens including a first lens element, an aperture stop, a second lens element, a third lens element, a fourth lens element, a fifth lens element, and a sixth lens element sequentially along an optical axis from an object-side to an image-side is provided. At least one of the object side surfaces and the image side surfaces of the first lens element to the sixth lens element is free form surface. The optical imaging lens satisfies the conditions of ImgH/(T1+G12+T2)?4.200. Furthermore, other optical imaging lenses are also provided.

Abstract: An optical imaging lens including a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element and a sixth lens element sequentially along an optical axis from an object-side to an image-side is provided. The optical imaging lens satisfies the condition of V1+V2+V3+V5?100.000. Furthermore, other optical imaging lenses are also provided.

Abstract: An optical imaging lens including a first lens element, a second lens element, a third lens element, a fourth lens element and a fifth lens element having refracting power arranged in sequence from an object side to an image side is provided. Twice of an Abbe number of the fourth lens element is greater than a sum of an Abbe number of the second lens element, an Abbe number of the third lens element, and an Abbe number of the fifth lens element. Other optical imaging lenses are also provided.

Abstract: An optical imaging lens includes, sequentially from an object side to an image side along an optical axis, a first to seventh lens elements each having an object-side surface and an image-side surface. The optical imaging lens satisfies a conditional expression: (G56+T6+G67)/(TG34+GT45)?2.600. G56 is an air gap from the fifth to the sixth lens element along the optical axis. T6 is a thickness of the sixth lens element along the optical axis. G67 is an air gap from the sixth to the seventh lens element along the optical axis. TG34 is a distance from the object-side surface of the third lens element to the object-side surface of the fourth lens element along the optical axis. GT45 is a distance from the image-side surface of the fourth lens element to the image-side surface of the fifth lens element along the optical axis.

Abstract: An optical imaging lens includes a first lens element to a seventh lens element. A periphery region of the image-side surface of the first lens element is concave, a periphery region of the object-side surface of the third lens element is concave, the fourth lens element has negative refracting power, an optical-axis region of the object-side surface of the fifth lens element is concave, an optical-axis region of the object-side surface of the sixth lens element is convex and an optical-axis region of the object-side surface of the seventh lens element is concave. EFL is an effective focal length of the optical imaging lens, BFL is a distance from the image-side surface of the seventh lens element to an image plane, AAG is a sum of six air gaps and Ti is a thickness of the first lens element to satisfy EFL/BFL?4.800 and AAG/T1?2.000.

Abstract: An optical imaging lens includes a first lens element to a seventh lens element from an object side to an image side in order along an optical axis, and each lens element has an object-side surface and an image-side surface. An optical axis region of the object-side surface of the third lens element is convex, an optical axis region of the object-side surface of the fourth lens element is concave, an optical axis region of the image-side surface of the fifth lens element is concave, the sixth lens element has positive refracting power and a periphery region of the object-side surface of the sixth lens element is concave, an optical axis region of the object-side surface of the seventh lens element is concave, and the optical imaging lens satisfies the conditions: ?2+?3+?6?110.000 and (T1+T7)/(G12+T2+G45)?2.500.

Abstract: A terminal includes a cover, a display module, and a metal middle frame. The display module is located between the cover and the metal middle frame, and the metal middle frame is grounded. The terminal further includes a conducting layer, where the conducting layer is attached to a lower surface of the display module, and at least one gap exists between the conducting layer and the metal middle frame. The conducting layer, the metal middle frame, and the at least one gap form at least one capacitor, where a capacitance change of the at least one capacitor reflects a magnitude of at least one pressure acted on the cover.

Abstract: An optical imaging lens including a first lens element, a second lens element, a third lens element, a fourth lens element and a fifth lens element having refracting power arranged in sequence from an object side to an image side is provided. Twice of an Abbe number of the fourth lens element is greater than a sum of an Abbe number of the second lens element, an Abbe number of the third lens element, and an Abbe number of the fifth lens element. Other optical imaging lenses are also provided.

Abstract: A method and apparatus for selecting a map from a plurality of maps having different resolutions for a moving object includes dynamically selecting an appropriate map from maps having different levels of details according to environment information, such that a minimum amount of required map is loaded, thereby effectively improving the data processing efficiency of vehicles.

Abstract: A method and an apparatus optimizes scan data obtained by sensors on vehicle, and corrects trajectory for a vehicle/robot based on the optimized scan data.

Abstract: A computer-implemented method for representing environmental elements includes receiving scan data comprising at least a point cloud representing at least an environmental element from a sensor, segmenting the point cloud into point clusters, and partitioning the point clusters into hierarchical grids. The method also includes establishing a Gaussian distribution for points in each cell of each of the hierarchical grids, and constructing a Gaussian Mixture Model based on the Gaussian distribution for representing the environmental element.

Abstract: A terminal includes a cover, a display module, and a metal middle frame. The display module is located between the cover and the metal middle frame, and the metal middle frame is grounded. The terminal further includes a conducting layer, where the conducting layer is attached to a lower surface of the display module, and at least one gap exists between the conducting layer and the metal middle frame. The conducting layer, the metal middle frame, and the at least one gap form at least one capacitor, where a capacitance change of the at least one capacitor reflects a magnitude of at least one pressure acted on the cover.