19 results about "Rectangular aperture" patented technology

The utility model discloses an automobile single-light lens module not prone to fogging, which comprises an end cover and a lens arranged in the end cover, the end cover is detachably connected with a lens support, a sealing gasket and a sealing surface are arranged in the end cover, the lens is tightly pressed on the sealing gasket and the sealing surface, the lens support is connected with a positioning mechanism used for positioning the end cover, and the lens support is connected with the end cover. The positioning mechanism comprises a positioning column, a smooth surface, a pushing block, a rectangular hole, a guide groove and a spring, the guide groove and the rectangular hole are formed in the lens support, the guide groove is used for guiding the positioning column, the smooth surface is arranged at the end of the positioning column, the spring is located in the guide groove, and the two ends of the spring are connected with the positioning column and the lens support; and the pushing block is used for driving the positioning column to reciprocate. According to the utility model, the lens can be conveniently positioned and fixed, the installation stability of the lens is improved, the sealing gasket and the sealing surface are matched for use, a dual-sealing effect is achieved, moisture is effectively prevented from entering, and a good anti-fog effect is achieved.

The utility model discloses SMT steel mesh production equipment, which comprises a rack, a jig mechanism, a gluing and slicing mechanism, a camera mechanism and a first moving mechanism, the jig mechanism can be used for sequentially stacking a steel mesh sheet and a mesh frame with a connecting sheet, and can be used for pressing and fixing the steel mesh sheet and the mesh frame with the connecting sheet; the camera mechanism can take a picture to obtain the position of the pressed screen frame and control the first moving mechanism to work according to the position of the screen frame, so that the first moving mechanism drives the gluing and slicing mechanism to move along a first path and a second path in sequence, the gluing and slicing mechanism moving along the first path can glue an inner hole of the screen frame, and a connecting piece and a steel mesh piece are partially bonded; and the gluing and slicing mechanism moving along the second path can cut off the connecting piece part which is not glued and adhered in the inner hole of the screen frame, so that the connecting piece is provided with a rectangular hole located in the inner hole of the screen frame, and the rectangular part of the steel mesh can be exposed out of the inner hole of the screen frame through the rectangular hole. Through the structure, the labor cost invested in the production process can be reduced.

This utility model belongs to the technical field of equidistant slitting devices, specifically an equidistant slitting device for POF heat shrink film. Addressing the problem of inconvenience in increasing or decreasing the number of slitting blades according to slitting requirements and the inability to adapt to different slitting needs, the following solution is proposed: a first mounting plate; a fixing rod fixedly mounted on one side of the first mounting plate; multiple connecting plates movably mounted on the fixing rods, each connecting plate having a slitting blade mounted on it; a second mounting plate located at the end of the fixing rods away from the first mounting plate; a rectangular hole located on the second mounting plate, with a rectangular block fixedly mounted at the end of the fixing rod away from the first mounting plate, the outer side of the rectangular block contacting the inner wall of the rectangular hole; and a locking groove located at the bottom of the rectangular block. This utility model allows for the increase or decrease of the number of slitting blades as needed to meet different slitting requirements, with a simple structure and convenient use.

The utility model relates to a prefabricated column mounting device which comprises a working table, one side of the working table is a low table top, and the other side of the working table is a high table top. A rectangular opening area is arranged in the middle of the low table top, first telescopic devices are fixed to the left end and the right end of the rectangular opening area, sliding rails are fixed to the front end and the rear end of the rectangular opening area, a sliding frame with an upper opening and a lower opening is slidably installed on the two sliding rails, and output shafts of the two first telescopic devices are connected with the left side and the right side of the sliding frame correspondingly. A plurality of second telescopic devices are fixed to the exteriors of the front side and the rear side of the sliding frame, and output shafts of the second telescopic devices extend into the sliding frame and are fixedly connected with clamping plates; a mounting plate is fixed to the high table top, the end, close to the sliding frame, of the mounting plate is hinged to one end of the pre-placing frame, a third telescopic device is mounted at the end, away from the sliding frame, of the mounting plate, and an output shaft of the third telescopic device is connected with the bottom of the other end of the pre-placing frame. According to the device, the prefabricated column is accurately and quickly positioned, the labor intensity of workers can be reduced, and the injury risk is reduced.

The utility model relates to the field of clamping equipment, and discloses a clamping device for a circular optical lens edge grinding machine, which comprises a shell, a rotating motor is fixedly mounted at the top of the shell, a lower clamping plate is fixedly mounted on an output shaft of the rotating motor, an L-shaped frame is fixedly mounted at the top of the shell, a hydraulic cylinder I is fixedly mounted at the top of the L-shaped frame, and a hydraulic cylinder II is fixedly mounted at the bottom of the hydraulic cylinder I; an upper clamping plate is rotatably mounted on an output shaft of the first hydraulic cylinder, a plurality of rectangular holes are annularly formed in the top of the shell at equal intervals, rectangular seats are slidably mounted in the rectangular holes, positioning holes are formed in the tops of the rectangular seats, and positioning seats used for positioning the circular optical lenses are slidably mounted in the positioning holes. The circular optical lens edge grinding device has the advantages that the circular optical lens can be positioned through the movement of the plurality of positioning seats in the horizontal and vertical directions, so that the circle center of the circular optical lens and the circle center of the lower clamping plate are positioned on the same axis, and the edge grinding error of the circular optical lens is reduced.

The application discloses a kind of dry granulator sight mirror mounting device, it is related to granulator equipment technical field.The present application includes frame and glass, the glass is arranged in the inside of frame, recess is set in the top inner wall and the bottom inner wall of frame, the top inner wall and the bottom inner wall of frame are fixedly connected with fixed strip, and there is gap between fixed strip and recess;Two inner pressure plates and two outer pressure plates, two the outer pressure plate is located in one side of glass, two the inner pressure plate is located in the other side of glass, and the inner pressure plate and outer pressure plate are fixedly connected by connecting assembly between them.The present application is installed by two inner pressure plates first, when inner pressure plate can not only help support glass, but also first release the braking of rectangular block, and the braking of shaft, while shaft rotates, rectangular rod and rectangular hole can also be used to engage, and four rectangular plates can be used to temporarily press glass, so that it is convenient to install outer pressure plate from outside, after installation is completed, four outer pressure plates can be reset, so that it is convenient to use next time.

This utility model relates to a crystal head testing and error-proofing device in the field of crystal head error-proofing technology. It includes a processing table with a rectangular hole. A rectangular plate is rotatably connected inside the rectangular hole via a pair of rotating shafts. When adjusting the angle of the crystal head, the moving frame must be manually pulled upwards to remove the lower end of the connector from the insertion slot. Simultaneously, the connector block pulls up a spring, causing it to be stretched further. Then, the rectangular plate is rotated up and down, causing the crystal head to rotate up and down as well, thereby adjusting the angle of the crystal head. After adjusting the angle, the external force applied to the moving frame is removed, causing the spring to pull the connector block, the moving frame, and the connector downwards together, allowing the lower end of the connector to be inserted into the corresponding insertion slot, thus fixing the rotating shaft and the rectangular plate. This application provides a simple and time-saving procedure for adjusting the crystal head, making it convenient for personnel to use when processing and testing crystal heads.

This invention discloses a variable rectangular aperture for a lithography exposure system, comprising two sets of opposing aperture assemblies. Each aperture assembly includes a linear drive module, an aperture plate, and a connector. The aperture plate is mounted on the connector, which is connected to the linear drive module. This invention, by precisely controlling the exposure field size, can minimize ineffective exposure areas (such as covering only the chip itself, rather than the entire standard exposure field including the dicing trace), reduce interference from ambient stray light on wafer exposure quality, reduce photoresist waste and exposure time, improve silicon wafer utilization, and ultimately reduce the cost per chip.

The invention discloses an attaching tool for explosion-proof glass processing, the attaching tool comprises a tool table, vertical lower supporting legs are fixedly arranged at the positions, close to four corners, of the bottom of the tool table respectively, a rectangular hole is formed in the middle of the tool table, and a glass fixing tool is arranged in the rectangular hole in an overturning mode; the glass fixing tool comprises an outer frame body arranged in the rectangular hole, the two side ends of the outer frame body are rotationally connected with the side walls of the tool table through connecting shafts correspondingly, and a first motor used for driving the outer frame body to rotate is fixedly arranged outside the tool table; two clamping blocks are oppositely arranged in the outer frame body in a sliding mode, and two pairs of first air cylinders used for driving the corresponding clamping blocks to move linearly are symmetrically and fixedly arranged on the outer side of the outer frame body. Through the integrated design, integrated operation from cleaning, attaching to overturning is achieved, and the processing efficiency, precision and safety of explosion-proof glass double-face film pasting are remarkably improved.

The utility model relates to the technical field of optical glass production, and discloses an optical glass annealing device which comprises an annealing furnace main body, guide rails are fixedly mounted on the left inner wall and the right inner wall of the annealing furnace main body, a supporting plate is slidably mounted on the outer surfaces of the two guide rails, and two first round rods are fixedly mounted on the inner wall of the supporting plate; the auxiliary adjusting mechanism is arranged on the supporting plate and comprises a first adjusting plate and two second adjusting plates, the first adjusting plate is slidably mounted on the outer surfaces of the two first round rods, a first rectangular hole is formed in the upper surface of the first adjusting plate, and a second round rod is fixedly mounted on the inner wall of the first rectangular hole; by moving the adjusting rod and the two first adjusting plates, the corresponding second adjusting plates and the placing table are driven to move, so that the position of the optical glass on the placing table is adjusted, a worker can conveniently adjust the distance of the optical glass, and the annealing efficiency of the annealing device on the optical glass is improved.

The invention discloses a terahertz polarization multiplexing metasurface calculus filtering device and an image processing method and device, and relates to the technical field of calculus image processing. The calculus filter, namely the polarization multiplexing metasurface, is a structural unit array formed by micron-sized structural units through two-dimensional periodic continuation, each structural unit is composed of a metal film and a rectangular hole formed in the center of the metal film, and the two rectangular holes are the same in size and different in rotation angle. Furthermore, an image processing method and device based on the terahertz polarization multiplexing metasurface are designed, the polarization multiplexing metasurface is placed on a common focal plane of a 4f optical system, and a polarization-dependent coherent transfer function is applied to a spatial spectrum of an input image; therefore, differential and integral processing functions of the image are realized on the two cross-polarization channels at the same time. Experiments verify that a terahertz time-domain spectroscopy system is used, and prove that differential and integral characteristics of an input image can be kept at the same time, and differential and integral operations of the image are realized. Under the condition that a coherent light source is not needed, differential and integral processing of the image can be achieved in the terahertz frequency band, the performance is high, the structure is simple, and wide application prospects are achieved in the fields of terahertz image processing, optical simulation calculation and the like.

The waterproof and dustproof assembly comprises display bodies, one side of each display body is fixedly connected with an insertion plate, and when two adjacent display bodies are installed and spliced, the insertion plates move downwards to drive fixing blocks and limiting blocks to move downwards; when the fixed block and the limiting block move downwards, the inclined face of the left end of the connecting rod is extruded, so that the connecting rod is driven to move in a connecting hole, the connecting rod moves to drive a rectangular plate and a movable plate to move, the rectangular plate moves to extrude a spring located in a rectangular hole, and the spring shrinks due to extrusion; and when the limiting blocks move into the limiting grooves, the rectangular grooves correspond to the connecting rods, and at the moment, springs reset to generate thrust to enable the two connecting rods to be inserted into the two rectangular grooves correspondingly, so that the inserting plate is limited, the two ends of the inserting plate are limited, and the fixing effect is improved.

The utility model discloses a glass hypersensitization device based on interactive spraying, which relates to the technical field of glass processing, and comprises a fixed base, the top of the fixed base is fixedly connected with a processing bin, the outer wall of one side of the processing bin is provided with a plurality of rectangular holes, and the interiors of the plurality of rectangular holes are fixedly connected with driving motors. According to the interactive spraying-based glass hypersensitization device disclosed by the utility model, the change of hypersensitization environment humidity can be monitored through the humidity monitor, the humidity monitor transmits a signal to the controller through the connecting line, and the angle of the nozzle can be adjusted through the controller, so that interactive spraying is realized; by adjusting the nozzle, the reagent can be more uniformly sprayed on the surface of the glass, the consistency of the sensitization effect of the surface of the glass is improved, the influence of excessive or insufficient local sensitization on subsequent coating or other treatment effects is avoided, and meanwhile, the spraying module can simultaneously perform single-side super sensitization on the two pieces of glass, so that the technical effect of improving the processing efficiency is achieved.

The utility model relates to a quality control device for a laser lamp above a helical fault radiotherapy system. The quality control device comprises a main die body and an auxiliary die body, the auxiliary die body comprises a bottom plate and a stand column; the main mold body comprises an upper transverse plate, a vertical plate, a lower transverse plate, an extension plate and a side plate, a first rectangular hole penetrates through the upper transverse plate, a first scale mark is arranged on the upper transverse plate, a second rectangular hole penetrates through the lower transverse plate, a second scale mark is arranged on the lower transverse plate, a clamping block is arranged on the upper transverse plate, and a connecting rope is connected to the bottom of the clamping block; the connecting rope sequentially penetrates through the first rectangular hole and the second rectangular hole and then is connected with a lead weight, a circular hole is formed in the upper end of the vertical plate and fixed to the stand column through a first bolt, an arc-shaped hole is formed in the lower end of the vertical plate and connected with the stand column through a second bolt, and a side bolt is installed on the side plate. According to the utility model, the vertical calibration of the laser line is guided according to the gravity of the lead weight, the operation is simple and convenient, and meanwhile, the uncertainty caused by previous complicated quality control equipment is also greatly avoided.

An electromechanically steered passive directional arrays and ESA antenna with the rectangular apertures' mathematically separable radiation pattern array lattice rotated to rotate the higher cardinal plane side lobes to ±45° relative to the vertical plane. Rotation minimizes clutter returns that mask weaker power returns and generates larger mean side lobe path loss. The higher sidelobe power levels are directed away from the critical area along the runway during approach. Individual array elements may be counter rotated to maintain desired antenna polarization state.

A broadband dual-polarized corrugated horn antenna based on a high-frequency choke slot includes a composite curved arm horn antenna, an aperture-shaped reverse quadrangular ridge, and a high-frequency choke slot. The composite curved arm horn antenna is composed of a bottom circular waveguide section, a curved section, and an aperture-shaped circular waveguide section connected together. The inner and outer radii of the curved section gradually increase along the direction from the bottom to the aperture. The aperture-shaped reverse quadrangular ridge is coaxially arranged in the composite curved arm horn antenna and is a cross-shaped structure composed of four ridge plates spliced ​​together. The outer ridge line of each ridge plate varies with a modified exponential function, which ensures that the top surface of the aperture-shaped reverse quadrangular ridge is square. The thickness of each ridge plate gradually widens from the inside to the outside, i.e., along the direction from the bottom to the aperture, and each ridge plate has a fine rectangular hole. The high-frequency choke slot is an axial annular groove engraved on the wall thickness of the aperture of the composite curved arm horn antenna. This invention improves the high-frequency radiation pattern of the reverse quadrangular horn antenna while increasing the bandwidth of the horn antenna.

The invention discloses an incremental encoder assembly for a mouse roller, which belongs to the technical field of mouse encoders and comprises a roller mounted on a roller support and a reflective incremental encoder. The roller support is in a U-shaped plate shape, the roller is rotationally installed between two side plates of the roller support, and the code disc is coaxially installed on one side face of the roller. A rectangular hole is formed in one side plate of the roller bracket; and a PCB (Printed Circuit Board) for bearing the reflective incremental encoder is arranged on the outer side surface of one side plate of the roller bracket, so that the reflective incremental encoder corresponds to the grid position on the coded disc. According to the invention, the reflective incremental encoder is adopted and only needs to be mounted on one side of the code disc, so that the installation, maintenance and disassembly are convenient, the energy consumption of laser emission is low, the light path design is simple, and collimation processing is not needed; in addition, the distance between the laser transmitting and receiving unit and the side face of the coded disc is 0.8-1mm, the tolerance to the axial shaking of the roller is higher, the requirement for the installation precision is low, the process is simpler, and the cost is saved.

The present application relates to holographic retinal projection near-eye display technical field, especially in kind based on phase mask optimization holographic retinal projection near-eye display method and system.It includes: with the rectangular aperture of target image distribution zero padding as input amplitude, and superimposed random phase mask, get the initial input complex amplitude of holographic plane;According to the initial input complex amplitude of the holographic plane, get the optimization phase mask of the holographic plane;According to the optimization phase mask, get the complex amplitude of the holographic plane;Extract the phase of the complex amplitude of the holographic plane, get the phase of the holographic plane light wave;The phase of the holographic plane light wave is superimposed on the phase of the converging spherical wave, and the RPD phase distribution is obtained;The RPD phase distribution is encoded to obtain a pure phase hologram;The pure phase hologram is input to a phase type spatial light modulator to obtain a holographic near-eye display result.The present application can realize high-quality holographic near-eye display effect in a short time.

A digital depth caliper for measuring grooves in small holes, used to measure dimensions X and B as shown in Figure 1; the invention consists of a point measuring head assembly, a measuring rod, a column base, a main scale assembly, and a scale frame assembly. The measuring rod is fastened to the scale frame in the scale frame assembly with screws. The scale frame assembly is fitted onto the main scale assembly, which is inserted into a rectangular groove in the column base. The measuring rod is inserted into a circular hole in the column base, and the external thread of the point measuring head is screwed into a hole in the internal thread on the measuring rod. The main scale base has a circular hole C for the measuring rod to pass through and a rectangular hole D for inserting the main scale. The main scale assembly consists of a main scale and a fixed grid. The scale frame assembly has the same structure and principle as the original digital caliper. During measurement, the measuring rod and the point measuring head assembly extend into the groove of the part being measured. The point measuring head is moved up and down so that it contacts the upper and lower parts of the groove respectively. The X and B values ​​of the groove are calculated by digital display measurement.