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62 results about "Triangular prism" patented technology

In geometry, a triangular prism is a three-sided prism; it is a polyhedron made of a triangular base, a translated copy, and 3 faces joining corresponding sides. A right triangular prism has rectangular sides, otherwise it is oblique. A uniform triangular prism is a right triangular prism with equilateral bases, and square sides.

Circular rainbow enhancement device based on three-prism principle

ActiveCN117789576BEducational modelsRotational axisRainbow
The present application relates to the observable projectable circular rainbow enhancement technology based on the principle of triangular prism refraction, and provides a reusable circular rainbow enhancement method and device, wherein the device for realizing circular rainbow enhancement based on the principle of triangular prism comprises a gyroid tooth-shaped prism and a projection screen, the rotation axis of the gyroid tooth-shaped prism is perpendicular to the projection screen, the cross section of the gyroid tooth-shaped prism is two strings of triangles which are symmetrically distributed along the rotation axis and connected in sequence, the gyroid tooth-shaped prism is made of transparent material, the incident light is parallel to the rotation axis of the gyroid tooth-shaped prism, enters and penetrates the gyroid tooth-shaped prism from the connected bottom side, and then is vertically projected to the projection screen. The present application is mainly applied to the design and manufacturing occasions of teaching and display devices.
Owner:TIANJIN UNIV

Triangular prismatic tuned mass damper suitable for large-span or cantilever structures

The invention involves a triangular prismatic tuned mass damper suitable for large-span or cantilever structures, including a triangular prism box, particle damping units inside the triangular prism box, and a steel mass block. Below the triangular prism box are high-damping springs. The particle damping unit consists of a particle damping cavity, particles of three different sizes, and foam rubber pads. When the structural vibration amplitude is small, the particles dissipate energy by compressing the foam rubber pads and rolling. When the amplitude of structural vibration is large, the energy is dissipated by the collision of particles and the compression of the foam rubber.
Owner:TONGJI UNIV

Brightness enhancement film and display device

The application discloses a brightness enhancement film and a display device, and relates to the technical field of optical films. The brightness enhancement film structure comprises a linear triangular prism structure, a first linear extension columnar structure which is arranged in a first preset angle and is overlaid with the light entrance surface of the linear triangular prism structure, and a second linear extension columnar structure which is arranged in a second preset angle and is overlaid with the first linear extension columnar structure away from one side of the linear triangular prism structure. The linear triangular prism structure, the first linear extension columnar structure and the second linear extension columnar structure are sequentially arranged from top to bottom, and the first linear extension columnar structure and the second linear extension columnar structure are sequentially arranged in the preset rotation direction according to the first preset angle and the second preset angle respectively, with the extension direction of the linear triangular prism structure as the reference. The application solves the problem that the existing light uniformization film still belongs to the diffusion function film category, and the brightness is reduced when a plurality of stacked films are used.
Owner:JIANGSU HONOPTICAL MATERIAL TECH CO LTD

A full-automatic sunshade based on sun orientation and shadow recognition and a use method thereof

PendingCN122140061AWalking sticksReal-time Control SystemGyroscope
The application relates to the technical field of automatic sunshade of sunshades, and proposes a full-automatic sunshade based on sun azimuth and shadow identification and a use method thereof, which comprises a handle and a supporting handle, a connecting seat is fixedly installed on the handle, a fixing seat is fixedly installed on the connecting seat, a supporting seat is fixedly installed on the supporting handle, and the connecting seat, the fixing seat and the supporting seat are all triangular prism structures. Through the multi-sensor fusion technology of a gyroscope, an illumination sensor and a camera, in combination with a real-time control system, the sunshade can continuously keep the sunshade surface shadow coinciding with the human body without manual change of the handle direction, the sunshade precision is remarkably improved, the problem that a local body is directly irradiated by sunlight is effectively avoided, and the automatic adjustment of the sunshade surface direction is realized.
Owner:ANHUI POLYTECHNIC UNIV MECHANICAL & ELECTRICAL COLLEGE

An integrated, interconnected ship collision avoidance device

This invention provides an integrated, interconnected ship collision avoidance device. A flat slot is provided on the upper layer of a polyurethane elastomer, with the slot opening located on the side of the polyurethane elastomer. A collision avoidance plate is fixed inside the slot. The polyurethane elastomer has a hollow structure, with a first cavity and a second cavity arranged in a triangular prism shape along either the transverse or longitudinal direction. Both the first and second cavities have triangular cross-sections, with the apex of the first cavity facing upwards and the apex of the second cavity facing downwards. The first and second cavities are staggered. This ship collision avoidance device, employing a collision avoidance plate combined with a triangular cell cavity structure, can achieve integrated operation under impact or shock of localized high stress, improving energy absorption efficiency and thus protecting the ship.
Owner:HUANHUI (JINGMEN) NEW MATERIALS TECHNOLOGY CO LTD

A three-sided billboard device

The application discloses a three-side turning advertising board device and relates to the technical field of advertising boards.The three-side turning advertising board device comprises an outer fixing frame, a layered plate is fixedly connected inside the outer fixing frame, a plurality of triangular prisms are movably connected to the top of the layered plate, a driving mechanism is arranged at the bottom of the layered plate, an auxiliary mechanism is arranged at the top of the layered plate inside the outer fixing frame, and a pull-cut mechanism is arranged at the top of the triangular prisms inside the outer fixing frame.The three-side turning advertising board device can fix two points of an advertising paper on the triangular prisms by moving a sliding block and then twisting a knob, thereby fixing the position of the advertising paper relative to the triangular prisms;after the top of the advertising paper is pasted, the inclined pressing plate is driven by the pressing plate to move downwards, the advertising paper is gradually pressed on the surface of the triangular prisms, the pasting of the advertising paper is quickly completed, and wrinkles and skewing caused by pasting are avoided, and the visual effect is improved.
Owner:WUHAN COSMIC SIGN GRP

Connecting and fixing device

The utility model discloses a connecting and fixing device, which belongs to the technical field of aeronautical manufacturing and maintenance, and comprises a connecting piece A and a connecting piece B which have the same structure, fixing bases of the connecting piece A and the connecting piece B are used for being fixed on materials needing to be connected, and fastening parts in a hollow triangular prism shape are fixed on the lower parts of the fixing bases of the connecting piece A and the connecting piece B; the difference is that the size of the fastening part of the connecting piece B is smaller than that of the connecting piece A, so that the connecting piece B can be sleeved in the connecting piece A and then is fixedly connected through a fastening screw. According to the utility model, the situation that a common angle section needs to be fixed at a fixed angle in advance is avoided, the effective utilization of the space in the operation process is improved, and the connection mode has no limitation requirement on the space of the two materials.
Owner:DALIAN CHANGFENG IND CORP

A super-hydrophobic surface with hierarchical re-entrant-honeycomb coupling structure and its preparation method and application

PendingCN122103660ADomestic articlesCoatingsBiological adhesionMaterials science
The application relates to a super-hydrophobic surface with a hierarchical fold-back-honeycomb coupling structure and a preparation method and application thereof, the structure of the super-hydrophobic surface comprises a regular hexagonal honeycomb frame structure and a fold-back structure connected with the vertexes of the regular hexagonal honeycomb frame structure; the structure of the fold-back structure comprises a cylinder and a circular chamfered triangular prism connected with the surface of the cylinder. The hierarchical fold-back-honeycomb coupling structure can present excellent super-hydrophobic characteristics; the structure can achieve a physical antibacterial and antifouling function by maximally reducing the actual contact area between liquid drops, microorganisms and the surface. The construction strategy can provide a new design path for the super-hydrophobic surface with antibioadhesion in a marine environment, realizes efficient antifouling, guarantees long-term functional reliability of the surface, and prolongs the service life of marine facilities.
Owner:SUZHOU INST OF NANO TECH & NANO BIONICS CHINESE ACEDEMY OF SCI

A kind of quick confirmation battery electrolyte liquid level consistency tooling

This utility model is entitled "A Tooling for Quickly Confirming the Consistency of Electrolyte Level in a Storage Battery." It belongs to the field of lead-acid battery technology. Its main purpose is to solve the problem of significant deviations in the electrolyte level height after adding acid in existing manual methods. Its main features are: the first and second triangular prism bodies share a common edge, and the adjacent faces of the first and second triangular prism bodies are located on the same plane; the included angle between the other faces of the first and second triangular prism bodies adjacent to the common edge is consistent with the included angle between the side and bottom surfaces of the battery. This utility model features a simple structure, ease of use, and the ability to quickly and accurately detect the consistency of electrolyte level height in all six cells of a storage battery after adding acid. It is mainly used for detecting and adjusting the consistency of electrolyte level height after adding acid, ensuring consistency in the formation process and battery performance.
Owner:CAMEL GRP XIANGYANG BATTERY

A zero-refractive-index metamaterial structure with full angular matching for arbitrary polarization incident waves

ActiveCN121663204BRefractive indexIncident wave
This invention discloses a zero-refractive-index metamaterial structure that operates with arbitrarily polarized incident waves at all angles. The structure mainly consists of multiple identical subwavelength structural units arranged periodically. Each subwavelength structural unit is a metallic regular triangular prism, with electromagnetic waves propagating along its axial direction. Each subwavelength structural unit has an air aperture penetrating it along its axial direction; the air aperture is a single connecting channel. In cross-section, the connecting channel mainly consists of a "Y"-shaped channel and three "V"-shaped channels. The zero-refractive-index metamaterial achieved by this invention exhibits zero phase accumulation characteristics, full-angle impedance matching in free space, and insensitivity to incident wave polarization, showing broad application prospects in electromagnetic stealth, metalenses, and other fields.
Owner:ZHEJIANG UNIV

Method for calculating storage capacity of debris flow dam and iterative optimization of dam height based on point cloud and tin model

This invention discloses a method for calculating the reservoir capacity and iteratively optimizing the dam height of debris flow dams based on point cloud and TIN models, belonging to the field of debris flow disaster prevention and control engineering technology. First, original ground point cloud data of the dam site area is acquired and preprocessed. TIN models of the original gully and the post-dam siltation surface are constructed separately. The design reservoir capacity is calculated using the triangular prism volume integral method, and the siltation line can be automatically generated and the siltation visualization results are output. Simultaneously, with accurate reservoir capacity as the core indicator, a verification mechanism between the reservoir capacity and the required reservoir capacity is established. The dam height is iteratively optimized by adjusting the elevation of the dam crest centerline until the reservoir capacity meets the requirements. This invention achieves rapid and high-precision calculation of the design reservoir capacity, eliminating reliance on manual operation. It also constructs a standardized reservoir capacity-dam height iterative process, achieving precise matching between dam height and reservoir capacity, balancing engineering disaster control effectiveness and economy. The results are compatible with general engineering formats and applicable to complex gully terrain, providing reliable technical support for the precise design of dams.
Owner:CHENGDU SHUANGLIU RONGDA MINING IND CO LTD +1

A golf tee that maintains the straightness of a golf ball

The present invention relates to a golf tee that maintains the straightness of a golf ball, comprising: a seating surface formed on the lower side for the golf ball to be placed on; a seating ring formed on the upper side of the seating surface with a cut line formed in the upper center to surround the outer diameter of the rear side from the vertical centerline of the golf ball, and an elastic ring made of an elastic synthetic resin material formed to surround the outer side of the seating ring; a guide part formed integrally with the seating ring, having a pair of guide pieces protruding from the front center of the seating ring of the seating part to surround both sides of the lower horizontal centerline from the vertical centerline of the golf ball toward the front side; a support part having a support rod formed on the lower surface of the seating surface of the seating part formed with the guide part formed thereon to support the lower surface of the seating surface; a fixing part having a triangular column fixing pin formed on the lower lower surface of the support rod of the support part, an attachment formed at the lower end of the triangular column fixing pin to facilitate insertion into the ground, a plurality of fixing grooves formed at the apex portion of the triangular column fixing pin, and a moving groove formed at the center of the side of the triangular column; and the fixing part It is characterized by being composed of a setting part having a triangular insertion hole formed in the center of a contact disc that makes surface contact with the ground so that a triangular prism fixing pin can be inserted to set the height, an elastic positioning pin formed protruding from the center of one side of the triangular insertion hole, and a plurality of insertion pins formed on the bottom surface of the contact disc that are fixed to the ground.
Owner:I G BEST

Method for processing muon detection data of triangular prism scintillator and muon detection system

PendingCN122449568AImaging qualityGain coefficient
The application relates to a method for processing muon detection data of a triangular prism scintillator. S1: obtaining uncorrected energy deposition information and uncorrected hit position of each muon event in each layer detection unit; S2: based on the actual structure parameters of the detector, performing geometric correction on the traditional centroid algorithm; S3: based on the statistical relationship between the energy deposition of the muon in the scintillator and the track length, establishing a signal channel gain coefficient model, and correcting the energy response of each detection channel; S4: based on the fitting results of the muon track length and the energy of each channel, determining the energy consistency standard, and performing rejection processing on the muon events determined as abnormal; S5: performing muon track reconstruction and imaging, evaluating the position resolution of the detector, and if the convergence condition is reached, ending, otherwise returning to S2 for iteration. The technical scheme can improve the muon track reconstruction accuracy and imaging quality through geometric structure correction, energy correction and abnormal energy event screening.
Owner:BEIJING NORMAL UNIVERSITY

Multi-station injection semi-solid injection molding mold

PendingCN122298948AElectric machineSemi solid
This invention discloses a multi-station injection semi-solid injection mold in the field of injection molding dies, including a lower mold, an upper mold, and a rotating motor. Three mold slots are provided on one side of the lower mold, and three cleaning slots are provided on the other side. Mounting side plates are welded to the sides of the cleaning slots, and triangular prism-shaped angle adjustment blocks are welded to the mounting side plates. Three cleaning electric push rods are bolted to the angle adjustment blocks. An L-shaped mounting bracket is welded to the bottom of the lower mold, and a mounting base plate is welded to the center of the mounting bracket. The rotating motor is located at the center of the mounting base plate. The upper mold is slidably connected to the top of the lower mold. The upper mold has vertically arranged top injection ports corresponding to the mold slots and cleaning slots, and side injection ports are obliquely downwards on the sides of the upper mold. This invention allows for cleaning of the other half of the mold while one half is being processed, making it convenient to use, delaying the solidification time of the semi-solid raw material, and enabling the mold to process larger workpieces.
Owner:KINGPIN PRECISION IND SUZHOU CO LTD

Camera optical lens

PendingUS20260186239A1Negative refractionOphthalmology
A camera optical lens comprises, arranged in sequence from an object side to an image side: a first lens with a positive refractive power, a second lens with a negative refractive power, a third lens with a negative refractive power, and a triangular prism. And the camera optical lens satisfies: 0.11≤D / TTL≤0.20; 0.10≤D / f≤0.22; 1.49≤ndi≤1.85; 0.32≤|SAG32| / SD32≤0.52; −20.03≤f3*d5 / (R5−R6)≤−7.99.
Owner:CHANGZHOU RAYTECH OPTRONICS CO LTD

A triangular prism AOI detection device

PendingCN122273829ATrigonal prismPrism
This invention relates to an AOI (Automated Inspection) device for triangular prisms, comprising a working platform with a loading station, a first positioning station, a bottom inspection station, a first buffer station, an inspection station, a second buffer station, a second positioning station, and a unloading station. A loading device loads a tray full of triangular prisms. A first transfer mechanism transfers the prisms from the tray to the first positioning station for positioning. A second transfer mechanism sends the prisms, after the bottom surface is photographed by the bottom inspection device, to the buffer device at the first buffer station for reorientation. A third transfer mechanism transfers the prisms to the second inspection device for photographing the top surface, side surfaces, and edges. The inspected prisms are then sent to the second buffer station for buffering and reorientation. The second transfer mechanism then sends them to the second positioning station for positioning. Finally, the unloading device sorts and unloads the prisms. This invention integrates automatic loading, bottom surface inspection, buffer reorientation, multi-face inspection, positioning and unloading, and sorting into one comprehensive and efficient inspection system with a high degree of automation, ingenious structure, and convenient practicality.
Owner:CHANGZHOU MICROINTELLIGENCE CO LTD

A solid triangular prism irregular precast body and its ply-lay and compaction method

This invention relates to a solid triangular prism preform and its layup and compaction method. The method includes: fabricating a split-type metal fixture adapted to the shape of the preform; selecting continuous unidirectional SiC fiber prepreg tape and cutting the prepreg tape according to the preform dimensions; continuously laying 90° and 0° prepreg tapes sequentially along the circumference of the prism in a V-shaped path; inserting multiple 0° continuous fiber bundles along the thickness direction in the sharp corner areas of the triangular prism, manually compacting the fiber bundles after each cumulative filling of 0.1-0.3 mm thickness; mechanically compacting the preform as a whole using the fixture; then placing the fixture and the preform together in an oven for curing; and finally, cooling and demolding after curing. This invention achieves a synergistic effect from three dimensions: layup method, sharp corner reinforcement, and compaction process, effectively solving the core technical problems of insufficient fiber density and easy pore aggregation in the sharp corner areas when preparing solid triangular prism preforms using traditional processes.
Owner:SHANG HAI RUI HUA SHENG XIN CAI LIAO YOU XIAN GONG SI

Temporary ramp structure

The present invention provides a temporary ramp structure with a smooth surface that allows rollers for transporting heavy objects to run on it, and which can accommodate several different heights by combining components with simple shapes. [Solution] A temporary ramp structure 1a of a certain width for transporting heavy objects is provided, and is formed by combining a sloping member 10 which is a triangular prism shape with an end face of a roughly right triangle and uses the face of a roughly right triangle as a side surface, and a rectangular parallelepiped member 20 which is a rectangular parallelepiped shape, and the sloping member and the rectangular parallelepiped member each have one or more holes 40 on the side surface of the sloping member and the side surface of the rectangular parallelepiped member, and a connecting plate 30 which spans the sloping member and the rectangular parallelepiped member and has bolt holes 30a that match the positions of the selected holes, and the sloping member and the rectangular parallelepiped member are joined by bolts using the connecting plate.
Owner:TEMU CO LTD

Rare earth-transition heterometallic molecular based magnets, methods of making and use thereof

This invention belongs to the field of rare earth-transition complex preparation technology, and discloses a rare earth-transition heterometallic molecular-based magnet, its preparation method, and its applications. The preparation method provided by this invention involves dissolving organic ligands H₂L, Dy(CF₃SO₃)₃, and Co(ClO₄)₂·6H₂O in a certain proportion in a mixed solvent of CH₃OH and H₂O, followed by the addition of Et₃N to obtain a mixed solution. This mixed solution is then heated and reacted in a reaction vessel with a polytetrafluoroethylene liner. Upon completion of the reaction, purple blocky crystals are obtained. This rare earth-transition heterometallic molecular-based magnet has a triangular prism-shaped metal framework structure and can be applied to the preparation of molecular magnetic materials and molecular memory materials.
Owner:NANTONG UNIV

Medical laser for microsurgery

Embodiments of the present disclosure disclose a medical laser suitable for microsurgery. A specific embodiment of the medical laser comprises a mirror, a gain crystal, a prism group, a Q switch and an output coupling mirror. The mirror is located at the starting point of the outgoing laser, and the gain crystal is arranged behind the mirror. The outgoing laser enters the prism group comprising a first prism, a second prism and a translation assembly from the gain crystal. The first prism is installed on the translation assembly and has a triangular prism structure. The second prism has a quadrangular prism structure. The largest side of the first prism is parallel to the largest side of the second prism. The translation assembly is configured to drive the first prism to translate along a direction perpendicular to the direction of the laser beam propagating between the first prism and the second prism. The Q switch and the output coupling mirror are arranged in sequence behind the prism group. By changing the resonant cavity length through the double prisms and the translation assembly, the pulse width is adjusted in a wide range. Thus, the embodiment improves the efficiency of clinical surgery.
Owner:BEIJING REALLIGHT TECH

Modular carbon fiber surgical bed with combination

ActiveCN114246756BFiberSpinal column
A kind of modularization carbon fiber operating table with combination. Hook type module interface and need manual locking, plug-in module interface needs positioning hole. The invention comprises: bed body (2), spine U-shaped frame (4), quick-mounting module (5), carbon fiber plate (6), characterized by: quick-mounting module (5) includes joint A (1), toothed joint (701), leg plate connecting piece (112), joint A has directional triangular prism (105), directional triangular prism has directional triangular hole A (101) in it, directional triangular prism right end has cam hole (117), directional triangular prism has taper, directional triangular prism right end has a group of round holes (102), one end of pin shaft (103) respectively passes through a group of described round holes, small cam A (104) in sequence and is fixed in a group of round holes by jack screw respectively. The invention is used for a kind of modularization carbon fiber operating table with combination.
Owner:高良志

A continuous plating solution supply device for a silicon steel strip continuous production line

This invention relates to the field of silicon steel strip, specifically to a continuous plating solution supply device for a continuous silicon steel strip production line. The device includes a motor, with a first receiving shaft fixedly connected to the motor's output end. A lint removal mechanism is fixedly connected to the end of the first receiving shaft furthest from the motor. The lint removal mechanism includes a top outer shell, a spiral shell rotatably connected to the inner wall of the top outer shell, a triangular prism fixedly connected to the inner wall of the spiral shell, an inner tension spring fixedly connected to the outer surface of the triangular prism, a double-headed disc fixedly connected to the top of the inner tension spring, and a lint-winding plate rotatably connected to the inner wall of the double-headed disc via a rotating bolt. A rectangular pull plate is slidably connected to the inner wall of the top outer shell. This system collects lint from the surface of the spiral shell, preventing lint from being dispersed throughout the plating solution and difficult to separate. The flow of the plating solution causes the lint-winding plate to rotate, entangleing and accumulating lint on the surface of the double-headed disc for processing, preventing excessive lint accumulation inside the plating solution from affecting the plating quality.
Owner:湖南宏旺新材料科技有限公司

An optical zoom substrate loading fixture

ActiveCN224428402UPrismTrigonal prism
This utility model provides an optical zoom substrate loading fixture, relating to the field of loading fixture technology. The washing basket frame, the middle washing basket rack, and the side washing basket racks are all made of metal. The side washing basket racks can be adjusted in installation position within the length range of the adjustment groove. Several support teeth are provided on both the middle and side washing basket racks, with adjacent support teeth forming a contoured support position for accommodating the end of a triangular prism. The support surface width of the support teeth does not exceed 1mm. By using metal for the washing basket frame, middle washing basket rack, and side washing basket racks, the fixture has higher strength, is less prone to deformation, and has a longer service life, avoiding product scratches caused by deformation. The support surface width of the support teeth does not exceed 1mm, avoiding contact areas other than the 1.5mm ineffective area of ​​the triangular prism, thus preventing product quality issues caused by a large contact area.
Owner:浙江台佳电子信息科技有限公司

Deep foundation pit assembled modular steel trestle and installation method

The application provides a deep foundation pit assembled modular steel trestle and a mounting method, relates to the field of urban renewal deep foundation pits or groove engineering, and comprises an upper module, a head bottom module and a tail bottom module which are horizontally distributed, a middle module which is installed in multiple groups and has a triangular prism module installed on the top surface, and a slope bottom triangular prism module which is gradually lowered in height from the upper module to the top of the slope bottom triangular prism module and has an inclined top surface which is inclined downward from the upper module to the tail bottom module. The head bottom module and the upper module are vertically distributed to solve the technical problems that the existing prefabricated plates are mainly laid by sliding, the steel trestle lacks lateral fixation, and the transport vehicle is prone to side slipping during transportation along the slope.
Owner:CHINA MCC17 GRP CO LTD

A quick crimping type terminal without stripping

The application relates to the technical field of wiring terminals, in particular to a stripping-free rapid crimping type wiring terminal which comprises an insulating shell, a cavity is arranged in the inside of the insulating shell, a conductive sheet is fixedly installed in the inside of the cavity, two groups of conductive frames are rotationally connected to the two sides of the conductive sheet, a wiring assembly for cutting and breaking the insulating skin of a wire and wrapping the conductor is arranged on the conductive frame, the wiring assembly comprises a limiting conductive block and a plurality of conductive springs which are in contact with each other and are located on the two sides of the limiting conductive block; the limiting conductive block with a triangular prism structure and the conductive springs with a spread-eagle distribution can automatically cut and separate the insulating skin of the wire through a cutting blade, the plurality of conductive springs can automatically wrap the conductor according to the wire diameter, the contact area is greatly increased, the resistance is reduced, the stripping-free efficient wiring can prevent the heating and virtual connection, a waterproof sleeve and a rubber pad form double sealing, the harsh environment such as humidity and dustiness can be adapted, and the connection stability and the whole environment safety are remarkably improved.
Owner:ANHUI YISITE ELECTRONIC TECH CO LTD

Camera optical lens

PCT designated stageWO2026143545A1OphthalmologyRefractive index
The present application relates to the field of optical lenses. Disclosed is a camera optical lens, which consists of a first lens having a positive refractive power, a second lens having a negative refractive power, a third lens having a negative refractive power and a triangular prism having a negative refractive power, which are arranged in sequence from the object side to the image side. An on-axis distance from the object-side surface of the first lens to the image-side surface of the third lens is D, a total optical length of the camera optical lens is TTL, a focal length of the camera optical lens is f, a refractive index of a glass lens of the camera optical lens is ndi, the sagittal height of the image-side surface of the third lens at the maximum effective optical diameter is SAG32, half of the maximum effective optical diameter of the image-side surface of the third lens is SD32, a focal length of the third lens is f3, an on-axis thickness of the third lens is d5, a radius of curvature of the object-side surface of the third lens is R5, and a radius of curvature of the image-side surface of the third lens is R6, which satisfy the following relational expressions: 0.11≤D / TTL≤0.20, 0.10≤D / f≤0.22, 1.49≤ndi≤1.85, 0.32≤|SAG32| / SD32≤0.52 and -20.03≤f3*d5 / (R5-R6)≤-7.99.
Owner:CHANGZHOU RAYTECH OPTRONICS CO LTD

Systematic building blocks

ActiveJP1830080SDiagonalPrism
This product consists of sets of several or dozens of blocks in six different shapes: a cube, a half-size cube with approximately half the volume obtained by cutting a cube in half parallel to one of its faces, a rectangular prism with approximately twice the volume obtained by connecting cubes side by side, a cylindrical shape that fits perfectly into the size of a cube, a spherical shape, and a triangular prism obtained by cutting a cube in half along the same diagonal line on opposite faces. Each block has a regular arrangement of dot indentations on its designated face, which is intended to evoke the idea of ​​systematically stacking and assembling blocks.
Owner:饭沼 富博

A reinforcing structure suitable for the cooperative work of an externally wrapped steel beam-column joint and a preparation method thereof

This invention provides a reinforcement structure and its fabrication method suitable for the collaborative operation of externally encased steel beam-column joints, relating to the field of building structure reinforcement engineering technology. This invention achieves coordinated force distribution and reliable connection among the three components by designing an integrated structure of a cylindrical steel-encased reinforcement unit, a beam steel-encased reinforcement unit, and a triangular prism collaborative support unit. This significantly improves the compressive, shear, and seismic performance of the cylinder, enhances the bending and shear bearing capacity and stiffness of the beam, ensures smooth load transfer between the beam and column, and ultimately improves the safety, stability, and durability of the entire reinforcement structure.
Owner:ORDOS GUOCHUANG GREEN CONSTRUCTION LOW CARBON TECHNOLOGY DEVELOPMENT CO LTD +2