298 results about "Finger structure" patented technology

A nitride based semiconductor LED is provided. In the nitride based semiconductor LED, an n-type nitride semiconductor layer is formed on a substrate. the n-type nitride semiconductor layer has the top surface divided into a first region and a second region with a finger structure, so that the first region and the second region are meshed with each other. An active layer is formed on the second region of the n-type nitride semiconductor layer. A p-type nitride semiconductor layer is formed on the active layer, and a reflective electrode is formed on the p-type nitride semiconductor layer. A p-electrode is formed on the reflective electrode, and an n-electrode is formed on the first region of the n-type nitride semiconductor layer. A plurality of n-type electrode pads are formed on the n-electrode. At least one of the n-type electrode pads are arranged adjacent to different sides of the n-electrode.

A solar module includes a photovoltaic region having an elongated shape. At least one bus bar pad overlies portions of the photovoltaic region. The solar module includes an electrically conductive region configured along a periphery region of the photovoltaic region to expose an interior surface region of the photovoltaic strip. A finger structure configured to conduct electrical current generated in the photovoltaic regions overlies the electrically conductive region.

In a semiconductor device, a well region is formed in a semiconductor substrate, a transistor-formation region is defined in the well region. An electrostatic discharge protection device is produced in the transistor-formation region, and features a multi-finger structure including a plurality of fingers. A guard-ring is formed in the well region so as to surround the transistor-formation region, and a well blocking region is formed in the well region between the transistor-formation area and the guard-ring. A substrate resistance determination system is associated with the electrostatic discharge protection device to determine a substrate resistance distribution at the transistor-formation area such that snapbacks occur in all the fingers in a chain-reaction manner, and such that occurrence of a latch-up state is suppressed

A method for producing monocrystalline n-silicon solar cells having a rear-side passivated p⁺ emitter and rear-side, spatially separate heavily doped n⁺⁺-base regions near the surface, as well as an interdigitated rear-side contact finger structure, which is in conductive connection with the p⁺-emitter regions and the n⁺⁺-base regions. An aluminum thin layer or an aluminum-containing thin layer is first deposited on the rear side of the n-silicon wafer, and the thin layer is subsequently structured so that openings are obtained in the region of the future base contacts. In a further process step, the aluminum is then diffused into the n-silicon wafer in order to form a structured emitter layer.

A pivoting firearm handgrip allows a user to pivot the handgrip relative to the firearm into various locked positions. The pivoting handgrip includes a grip base and a grip body that are selectively locked together by a spring biased shaft having key formations. The key formations on the shaft engage keyway formations on finger structures of the grip body. The key structures of the shaft also selectively engage locking formations on supporting structures on the grip base. A spring is captured between the head portion of the shaft and the grip body so that the key formations of the shaft are spring biased to engage the locking formations of the grip base. In use, a user depresses one end of the shaft to disengage the key formations of the shaft from the locking formations of the grip base, and then freely pivots the grip body about the base.

The invention provides a grapping mechanism and method for spatial targets. A clamp-type three-finger structure is utilized to ensure that the mechanism is as small as possible under the premise that the structure can bear loads with different kinds of specifications and sufficient strength and suitable for multiple targets. The grapping mechanism is simple in structure, easy in machining and low in manufacture cost. The grapping mechanism and method for spatial targets have following beneficial effects: the grapping mechanism for spatial targets comprises a three-finger gripper and a driving mechanism used for driving the gripper to close and open; the gripper is in the three-finger structure in which three fingers are symmetrically distributed in the form of 2 to 1 on the center surface of the grapping mechanism; the connecting lines among the central points of the sections of the fingers form an equilateral triangle so that grapping force and moment balance of the spatial targets are ensured to the maximum extent.

The invention discloses a finger structure of a skillful hand of a fruit picking robot, and relates to the technical field of skillful hands of agricultural robots. The finger structure comprises a motor driving device, a base frame, a first knuckle, a middle knuckle, a tail end knuckle, belt transmission mechanisms, a gear differential motion mechanism, a coupling connecting rod transmission mechanism, a cross shaft and the like, wherein the motor driving device is fixedly arranged on the base (5); a belt transmission mechanism I (3) is driven by a motor I (1) to drive the gear differential motion mechanism (15) to realize the pitching motion of a finger; the gear differential motion mechanism (15) is driven by a motor II (2) to drive a belt transmission mechanism II (16) and drive the coupling connecting rod transmission mechanism (17) to realize the bending motion of the finger; and the cross shaft (12) is driven by a motor III (7) to realize the side-sway motion of the finger. The finger of the skillful hand has four knuckles and three degrees of freedom, has the advantages of light weight, flexible operation, simple structure and high maintainability, and can be applied to the skillful hand of the fruit picking robot.

A liquid crystal display includes a first plate including first and second field-generating electrodes disposed in a pixel area of an insulating substrate and electrically separated from each other in a cross-finger structure, and a first alignment film covering the first and second field-generating electrodes and rubbed in a first direction; a second plate formed of an insulating substrate and including a third field-generating electrode, a plurality of field-generating portions and openings, and a second alignment film covering the third field-generating electrode and rubbed in a second direction; and a liquid crystal layer interposed between the first plate and the second plate.

A guide has an open end and a finger structure preferably of a shape memory alloy. The guide is run in small-diameter configuration through a restriction with a fishing tool, such as an overshot, above it. Once through the restriction, power to heaters on the fingers takes the material past its transition temperature to allow the guide lower end to fan out and surround a skewed fish that is in a slanted position and leaning on a wall of a surrounding tubular that has a larger dimension than the restriction. The bottomhole assembly is then advanced until the fish is captured by the fishing tool and pulled out of the hole. The fingers are forcibly retracted as the assembly is pulled back through the restriction. The guide can use retained fingers with an outward bias to flare out after passing through a restriction, thus acting as a fish guide.

The invention relates to a mechanical arm, in particular to a mechanical gripper with a three-finger structure. The mechanical gripper aims to solve the problems that connecting rod transmission or mechanical transmission is adopted in a grabbing transmission mode of an existing mechanical arm, the connecting rod transmission is complex in designed structure, the mechanical transmission is long in finger closing time, the structure of fingers is complex, and breakdowns can happen easily. An output end of a motor is connected with a screw through a coupler, a threaded hole is formed in the center of a slider, the slider is in threaded connection with the screw, three connecting rods are evenly arranged along the same circumference, one end of each connecting rod is connected with the slider, the other end of each connecting rod is connected with one finger, the fingers are arranged on a gripper shell through a fixed shaft, a switch sensor is arranged at the bottom of the central axis of each finger, probes are fixedly arranged on the lower end face of the gripper shell, and signal sensors are arranged at the lower ends of the probes. The mechanical gripper with the three-finger structure is used for grabbing cup-shaped targets by robots.

The invention discloses an ESD protective circuit with a control circuit for an integrated circuit, which belongs to the technical field of electronics. A plurality of ESD protective circuits of the invention are controlled by a single control circuit so as to save the area of a silicon chip occupied by the control circuit. Simultaneously, a plurality of auxiliary ESD relief passages are arranged besides a master ESD relief passage. The control circuit is utilized to reduce the triggering voltage of the ESD protective circuit, prevent an internal circuit device connected in parallel with an ESD protective device from being broken down and switched on first to further cause the anti-ESD capacity reduction of the chip and make more uniform the starting of an MOS device with a multi-finger structure.

The invention discloses a 3dB (dual-branch) directional coupler based on a cross-finger structure. The 3dB directional coupler comprises a main line, a subline, a first branch line and a second branch line, wherein the two ends of the main line are respectively provided with a first port and a second port, and the two ends of the subline are respectively provided with a third port and a fourth port. The 3dB directional coupler is characterized in that the main line, the subline, the first branch line and the second branch line are respectively composed of the cross-finger structure and residual parts at the two ends of the cross- finger structure; the outer sides of the residual parts of the main line are provided with main line resistance adjusting parts, and the outer sides of the residual parts of the subline are provided with subline resistance adjusting parts; the size of the coupler is reduced due to the slow wave characteristic of the cross-finger structure, and the coupler hasstable insertion loss close to the insertion loss of a common microstrip line within a wide waveband due to the lowpass characteristic of the transverse cross-finger structure, therefore, the cross-finger structure is used for replacing the common microstrip line so as to ensure the steadiness of the high band characteristic, and the defect in the prior art is overcome.

The invention provides an end effector for picking tomatoes through synchronous adsorption and clamping, and a corresponding picking mechanism and method, and relates to the field of agricultural picking robots. The end effector is composed of a manipulator end effector, a robot arm, a moving platform, a fruit storage box and a control box, and is characterized in that the robot end effector is mounted on the end of the robot arm which is mounted on the moving platform; the robot end effector further comprises a first cylinder, a mounting plate, a second cylinder, a U-shaped bracket, a suckercylinder, a spring bracket, springs, an imitation finger structure, a sucker, a finger press disc and a cylinder shaft. The invention provides the end effector for picking tomatoes through synchronousadsorption and clamping and the corresponding picking mechanism and method, so that the defects of low efficiency and low mechanization degree of existing manual picking of tomatoes are overcome. Inthe technical scheme, fruits are adsorbed and synchronously clamped, and then fruit stems are swung for being broken off, and therefore the technical problem that the efficiency of picking tomatoes islow is solved.

The invention discloses a modular multimodal artificial hand, which comprises a wrist driving module, a palm module, a finger structure, a thumb module, a rope, a rotating winch, a mode conversion module and an adjustable fixing rod, wherein the rope is pulled by the palm flexion of a patient's wrist, the bending of the finger structure is realized, and the stretching is realized by the resilienceof a flexible hinge; using the cam of the modal conversion module to adjust the stretching amount of the rope, the working gesture of the artificial hand can be converted. The working gesture includes grasping, finger and V-shape gesture, which can meet the needs of the daily life of the patients. By changing the winch, the different length of the driving part rope and the finger part rope can bechanged, and the effect and strength of the grasping can be improved. By setting the thumb rotation structure, the degree of freedom of the thumb is increased, and the practicability and the applicable scene of the artificial hand are improved. The invention adopts 3D printing manufacture, is easy to process, simple and portable in structure, low in wearing pressure, low in cost and easy to popularize.

The invention discloses a painless blood collection device based on acupuncture in a negative pressure environment. The principle is to pre-set a vacuum environment before triggering the puncture needle. When preparing to take blood, the skin and the ejection shell form a closed space. When the puncture needle is triggered, the vacuum chamber and the closed space are connected to form a negative pressure environment. The blood collection needle only needs to puncture a very shallow area The skin, with the assistance of negative pressure, can achieve the required blood collection volume. After the finger releases the locking structure, the connected air hole can eliminate the negative pressure state and complete the blood collection process. This article provides two embodiments, one is a reusable negative pressure painless blood collection device, and the other is a disposable negative pressure painless blood collection device.

The invention relates to a pneumatic serial-connection flexible hinge multi-finger paw of a compliant mechanism. The multi-finger paw consists of a palm and three flexible fingers, and the palm has a rectangular structure and a hexagonal structure; the structure of each flexible finger is identical, and each flexible finger structure mainly consists of an internal guide air cylinder and a serial-connection flexible hinge; the multi-finger paw is driven by an air cylinder to produce a grasping force, the multi-finger paw is applied to a fragile object or used for grasping a specially-shaped object with a varied shape and varied size; and the flexible finger of the multi-finger paw is a compliant mechanism, and the serial-connection flexible hinge is a deformation element of the compliant mechanism. The pneumatic serial-connection flexible hinge multi-finger paw has the characteristics that: a good flexible degree of freedom and good buffering performance can be realized for an outer load, and the flexible adaptability is good. The pneumatic serial-connection flexible hinge multi-finger paw belongs to the technical field of the robot and mechatronics; and the pneumatic serial-connection flexible hinge multi-finger paw is connected with a robot main body and particularly suitable for the production and logistics field such as the grasping, sorting and packaging of food, agricultural products and light products.

The invention provides an end effector of a tomato flexible picking manipulator, which relates to the field of agricultural picking robots. Finger structure, suction cup, finger pressure plate and shaft, the profiling finger structure includes silicone piano keys, miniature springs, finger shaft, left profiling finger, right finger semicircle pressure plate, left finger semicircle pressure plate and right profiling finger , the present invention completes the working process of aligning fruit, absorbing fruit, sucking and clamping and swinging and breaking, and overcomes the defects of low efficiency and low degree of mechanization of existing tomato manual picking. With flexible self-adaptive ability, the picking method of swinging and breaking the fruit stems solves the technical problems of low tomato picking efficiency and easy damage.

A removable, uni-body, low voltage device adapter clip for an electrical device housing having an opening that is sized to accommodate a standard N-gang outlet box, makes it possible to mount a low voltage device in the sized-opening. The clip includes a longitudinal body portion having opposite ends defining an N-gang length there between. The clip has a finger structure that is configured to engage a front and a rear surface of an edge of the sized opening. It further has N device mounting bores disposed between the opposite ends, each of which is aligned with a longitudinal centerline of each one of the N-gang-sized openings. An electrical device housing assembly includes an electrical device housing having a plurality of recessed walls, wherein at least one of the walls has an opening that is sized to accommodate a standard N-gang outlet box, and a pair of removable, uni-body, low voltage device adapter clips. The assembly may include a low voltage device. The assembly may further include integrated mounting flanges and flange covers.