591results about How to "Big angle" patented technology

The present invention relates to a laser device comprising at least one large area VCSEL (101) and at least one optical feedback element (201, 301) providing an angular-selective feedback for laser radiation emitted from the laser. The angular-selective feedback is higher for at least one portion of laser radiation emitted at angles θ>0 to the optical axis (601) of the laser than for laser radiation emitted on said optical axis (601). The invention also refers to a method of stabilizing a laser emission of a large area VCSEL in a desired angular distribution (501, 502). With the proposed device and method, the intensity distribution of a large area VCSEL can be stabilized in a desired shape, for example a ring shape.

The invention discloses a method for building a city gas pipe network vulnerability evaluation model. The method comprises the following steps that an evaluation model is built through fuzzy hierarchy comprehensive evaluation; a vulnerability evaluation index weight is determined; a city gas pipe network system fuzzy comprehensive evaluation basic model is built. As the system vulnerability evaluation and traditional risk evaluation are similar and both need to build evaluation index systems according to evaluation purposes, a proper evaluation method is selected to build an evaluation mathematical model, the model is utilized to conduct system vulnerability calculation and vulnerability grading, the quantitative and qualitative combined system vulnerability evaluation is achieved, and a research result of the city gas vulnerability can lay the foundation for improving the level of a Chinese gas pipeline management technology, prolonging the service life of a city gas pipeline and avoiding or reducing sudden invalidation accidents. With the deepening of the vulnerability research, the vulnerability evaluation is introduced in the filed of research of the science of disasters, the point of view of the safety evaluation is made to be wider, the content of the safety evaluation is made to be fuller, and the evaluation result has more practical value.

The invention discloses a wireless charging and power supply method for a wireless sensor network node. A wireless electrical energy transmission system consisting of a charging and power supply host and a node charging and power supply slave is involved, wherein the charging and power supply host is provided with an energy transmission circuit which has adjustable transmission frequency and power, measurable transmission current and a rotary transmission antenna; and the node charging and power supply slave is provided with a wireless coupling receiving circuit, a multidirectional coupling receiving antenna, a charging and power supply voltage detection circuit and a booster circuit. Optimal coupling frequency and optimal transmission power between the transmission circuit and the receiving circuit are found by scanning the transmission frequency and detecting the detection current, an optimal coupling direction between the transmission antenna and the receiving antenna is found by rotating a charging and power supply antenna, and charging and power supply information is exchanged by a wireless communication channel to determine whether charging and power supply are required or not between the host and the slave and determine charging and power supply frequency and power and the direction of the transmission direction. Therefore, the wasting of idle energy sources is avoided when the slave is not charged and supplied with power, and high wireless charging and power supply efficiency, long wireless charging and power supply distance and high wireless charging and power supply speed are ensured.

A truck assembly for a skateboard or the like that is configured to eliminate the undesired ride characteristic of wheel bite without sacrificing the turning responsiveness thereof and without deviating from the general shape and form of a typical skateboard truck. In the preferred embodiment of the invention each truck assembly includes an axle assembly with a ring-shaped member, disposed about a kingpin, that includes two threaded bores longitudinally oriented in the general plane of the ring-shaped member substantially parallel to the axis of the axle and on generally opposite sides of the kingpin, in each of which is positioned a bolt whose distance from the kingpin is determined by actuation of the bolt such that when the axle assembly pivots through an angle about the axis of the kingpin and causes one or more of the bolts to contact the kingpin, the contacting bolt or bolts resists any further pivoting of the axle assembly beyond that angle. In a further feature of the invention the kingpin is modified to define a flat edge along generally opposite sides thereof, each flat edge being adjacent to each bolt positioned within its respective threaded bore.

An image processing device comprising a camera to pick up frame images at the times, a basic template creating portion to create a basic template of a picked-up object in the first image, an image transformation parameter calculating portion to calculate a transformation matrix to execute an image transformation of an object of the first image to an object of the second image, a template transforming portion to create a transformation template by transforming the basic template with the transformation matrix, and a template matching processing portion to execute a template matching processing to the second image with the transformation template to detect the object and to determine that the picked-up object in the second image is identical to the basic template when a matching degree by the matching means is higher than a specified degree.

A chair has a link of a chair back, a link of a chair seat, and a link mechanism that pushes up the link of the chair seat when the link of the chair back is pressed to incline rearward, so that the occupant can take the optimum seating posture without being conscious, thus further improving the comfort in the reclined posture.

The present invention relates to a device (10) for providing a gas composition compensated acoustic measurement of the level of a liquid (16) in a tank (18). The device comprises a transducer (14) arranged outside said liquid for transmitting and receiving acoustic signals, and a waveguide (12) connected to said transducer and extending into the liquid. The device further comprises means for feeding a flow of fluid from said tank into the part of said waveguide which is located above the liquid level. That results in that the gas composition become essentially similar throughout the whole of the waveguide located above the liquid level, whereby the level measurement using the speed of sound in the waveguide, which speed is dependant on gas composition, becomes very accurate.

Several inventions are disclosed. A cell architecture using hexagonal shaped cells is disclosed. The architecture is not limited to hexagonal shaped cells. Cells may be defined by clusters of two or more hexagons, by triangles, by parallelograms, and by other polygons enabling a variety of cell shapes to be accommodated. Polydirectional non-orthogonal three layer metal routing is disclosed. The architecture may be combined with the tri-directional routing for a particularly advantageous design. In the tri-directional routing arraingement, electrical conductors for interconnecting terminals of microelectronic cells of an integrated circuit preferrably extend in three directions that are angularly displaced from each other by 60 DEG . The conductors that extend in the three directions are preferrably formed in three different layers. A method of minimizing wire length in a semiconductor device is disclosed. A method of minimizing intermetal capacitance in a semiconductor device is disclosed. A novel device called a "tri-ister" is disclosed. Triangular devices are disclosed, including triangular NAND gates, triangular AND gates, and triangular OR gates. A triangular op amp and triode are disclosed. A triangular sense amplifier is disclosed. A DRAM memory array and an SRAM memory array, based upon triangular or parallelogram shaped cells, are disclosed, including a method of interconnecting such arrays. A programmable variable drive transistor is disclosed. CAD algorithms and methods are disclosed for designing and making semiconductor devices, which are particularly applicable to the disclosed architecture and tri-directional three metal layer routing.

The invention relates to an active electric power-assisting circulation ball type steering system, comprising a steering column tube assembly, a screw rod moving device, a circulation ball type steering device, an electric power-assisting device and an automatic control module. A steering column tube is connected with the upper part of a screw rod of the circulation ball type steering device through a sliding spline, and the electric power-assisting device is connected with the lower part of the screw rod through a sliding spline; the screw rod moving device is sleeved on the screw rod; the screw rod has two motion freedoms; a freedom of rotating around the axis is controlled by a steering wheel; and the other freedom of moving along the axis is controlled by a screw rod moving control motor; a steering nut is moved by overlapping the effects of rotation and axial movement of the screw rod, so that a transmission ratio of the steering system is changed in real time, and the active steering is intervened. The steering system not only can meet the requirements on lightness and high sensitivity at a low-speed steering process and on stable operation at a high-speed steering process, but also has the characteristics of security, compact structure, low cost and the like. The active electric power-assisting circulation ball type steering system is applicable to a medium/light passenger bus and a lorry.

A split-style electric skateboard includes a main skating board, an auxiliary skating board, and a cross beam located between the main and auxiliary skating board. The main skating board has a steering wheel and a driving wheel arranged one behind the other. A driving motor is mounted in the driving wheel and the steering wheel is connected to the main skating board by a first steering support and a first pivot located on the first steering support. A secondary steering wheel is mounted at an intermediate position on the auxiliary skating board and is connected to the auxiliary skating board by a second steering support and a second pivot located on the second steering support. The first and second steering supports are fixedly connected by the cross beam, and the auxiliary skating board can rotate with respect to the main skating board using the first pivot as the rotation center.

A body fluid absorbing article, which is improved in the spot absorptivity and in the diffusivity in an absorbent, and which is improved in the characteristics of a body fluid migration to the absorbent. The body fluid absorbing article comprises an absorbent sandwiched between a body fluid permeable surface member and a body fluid impermeable back member. Said absorbent includes an upper layer and a lower layer sequentially from the side of said body fluid permeable surface member, and said lower layer has a higher density than that of said upper layer.

The present invention relates to an automatic mixing, adjusting and feeding system for an aquaculture feed, wherein a feed bin weighing module which is used for automatically feeding back and controlling loading weight and unloading weight is arranged on a combined feed bin; a pneumatic valve on the bottom of the combined feed bin is aligned to a proportioning bin below; an air brake on the bottom of the proportioning bin is aligned to a feed mixing bin below; a vibrating conveyer is arranged in a mixing bin; and the vibrating conveyer is used for filtering a powdery feed to a powdery material collecting barrel; a bacterial (liquid) barrel is communicated with the mixing bin through a liquid conveying pipeline to add a bacterial liquid or a medicinal liquid into the feed, and to uniformly mix by virtue of the vibrating conveyer; the bottom of the vibrating conveyer is communicated with an air pump conveying pipeline through a pipeline; a fan is divided into two air paths through a pneumatic three-way joint, one path is used for blowing the feed and annularly scattering the feed through a rotary material scattering machine floating on the water surface while the other path is used for aerating and oxygenating a water body in a feed feeding region through an underwater aeration pipe in a material scattering region of the material scattering machine so as to improve dissolved oxygen demand of a high-density feeding fish school in the feed feeding region.

The invention discloses a tool chip breaker, solving the problems of difficult chip breaking caused by great material plasticity and elasticity in the process of automatic processing and thin-cutting. The key of the invention is that a section of major first face and a first front angle are added in the cutting edge of a linear arc-shaped chip breaker, and the back of the major first face is a major second face; according to the parameters of cutting thickness, the major first face and the major second face, the corresponding curvature radius of an arc chip reeling slot is calculated. The tool chip breaker has the advantages that: as a section of the linear major first face is added in the cutting edge, the curvature radius of the arc chip reeling slot is reasonable, the chip deformation is increased, the effect of chip reeling and breaking is improved; the angle of the cutting edge is increased, the strength of the cutting edge is strengthened and the cutting depth is deepened; the new structure ensures that the chip goes into the chip reeling slot more smoothly.

The invention discloses a tube type PERC single-sided solar cell, which comprises a main silver back gate, an all-aluminum back electric field, a back-side composite film, a P-type silicon, an N-type emitting electrode, a front-side passivation film and a positive silver electrode. The back-side composite film is composed of one or more selected from an aluminum oxide film, a silicon dioxide film, a silicon oxynitride film and a silicon nitride film and is deposited at the back of a silicon chip by adopting tube type PECVD equipment. The tube type PECVD equipment comprises four gas pipelines of silane, ammonia, trimethyl aluminum and laughing gas. The appliance of the tube type PECVD equipment, used for loading and unloading silicon chips, is a graphite boat. The depth of a sticking point groove of the graphite boat is 0. 5-1 mm. The invention also discloses a preparation method and special equipment of the tube type PERC single-sided solar cell. According to the invention, the photoelectric conversion efficiency is high. Meanwhile, the appearance yield and the EL yield are high. The problems of scratching, winding and plating can be solved.

A multi-speed sprocket assembly is provided for engaging a bicycle chain displaceable by a derailleur. The multi-speed sprocket assembly generally includes at least one smaller sprocket and at least one larger sprocket. The larger sprocket includes first and second transitional segments for alternatively receiving a shifting chain segment of the bicycle chain shifting from the smaller sprocket to the larger sprocket. The first transitional segment includes a first run-on ramp configured to receive an outer link plate of the shifting chain segment. The first run-on ramp has a first support point configured to bend the transferring bicycle chain at a first angle to position a first chain roller against a no-load tooth flank of the larger sprocket while a second chain roller rests against a load tooth flank of the smaller sprocket. The second transitional segment includes a second run-on ramp configured to receive the outer link plate of the shifting chain segment. The second run-on ramp has a second support point configured to bend the shifting chain segment at a second angle to position the first chain roller against the no-load tooth flank of the larger sprocket while the second chain roller rests against the load tooth flank of the smaller sprocket.

The light emitting device comprises: a bowl-shaped reflector; a point light source; and a combined lens provided on the light axis of the point light source. And the combined lens has: a convex lens part having a focal point coinciding with the point light source, refracting center light around the light axis into parallel light; and a concave lens part provided around the convex lens part, and refracting and diffusing light having an angle with the light axis larger than an angle between the center light and the light axis so as to increase the angle with the light axis. A virtual focal point of the light refracted and diffused with the concave lens part coincides with the focal point of the paraboloid of revolution.

The invention discloses baby heel hemostix. The hemostix comprises a shell, an insurance component, a triggering key, a blade, a knife rest, a poking shaft and a torsion spring, the insurance component comprises a pull ring, a key retaining rib and a blade protection shell, the triggering key is locked through the key retaining rib, and the blade is covered with the blade protection shell; a 90-degree included angle is formed between the key direction of the triggering key and the blade outgoing direction of the blade; the poking shaft can drive the knife rest to be linked; the end, close to the blade, of the knife rest is provided with a bevel pin shaft, and the bevel pin shaft is arranged in a profiling groove in the shell in a sleeved mode, so that the blade moves according to the track of the profiling groove; when in the locked state, and a clamping corner at the lower end of the poking shaft is stuck by a protrusion at the lower end of the triggering key, so that the torsion spring is located in the energy storage state. By means of the hemostix, the blade can be prevented from being polluted, when a medical worker conducts blood sampling, accurate location can be achieved, misoperation is avoided, and painless blood sampling is achieved in the real sense.

The invention discloses a workbench and method for automatically overturning a welding jig, and belongs to the technical field of automatic overturning of welding jigs. The workbench comprises a base,a double-layer platform and a turnover device, wherein the base is arranged at the lower end of the double-layer platform, and both sides of the double-layer platform are connected with the turnoverdevice. The double-layer platform comprises a vacuum platform and a horizontal platform, and the vacuum platform and the horizontal platform are mutually parallel and are connected through an air cylinder assembly. The turnover device comprises a lifting mechanism, a rotating motor and a clamping mechanism, wherein one end of the rotating motor is connected with the lifting mechanism, the other end of the rotating motor is connected with the clamping mechanism, and the middle of the clamping mechanism is connected with the double-layer platform in a clamping mode. A welding platform can be turned over by 180 degrees through clamping, ascending, rotating and descending, and the welding angle is enlarged; and the double-layer platform with two functions is adopted for welding to adapt to different welding modes.

The invention relates to a locking element for locking and unlocking a cable connector and a counterpart, said locking element extending along a longitudinal axis between a rear side and a mating side. At the mating side two or more resilient beams extend substantially parallel to the longitudinal axis and contain one or more locking structures including an insertion surface and a locking surface building an angle with the longitudinal axis. The insertion surface and locking surface have an inclined orientation with respect to the longitudinal axis wherein the angle of the locking surface is larger than the angle of the insertion surface but substantially smaller than 90 degrees. The invention further relates to a connector system wherein one or more of these locking elements are applied to connect a cable connector and a board connector.