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61 results about "Rectangular aperture" patented technology

Rectangular Apertures can be used to define the boundaries of an optical path or to mask out specific areas in an optical system, for example on a test target, monochromator, CCD or a detector.

Multi-channel switchable holographic metasurface encryption device and encryption method

The invention belongs to the technical field of micro-nano photoelectrons, and particularly relates to a multi-channel switchable holographic metasurface encryption device and method. The holographic metasurface encryption device is an array formed by nanoscale structure units through two-dimensional periodic continuation, and is called as a phase change dynamic holographic metasurface. Wherein the structural unit is formed by sequentially overlapping a phase change material layer and a metal material layer on a substrate; rectangular holes are formed in the central parts of the phase change material layer and the metal material layer; holographic encryption is realized by utilizing the adjusting capability of the phase change material unit, a plurality of independent holographic image channels are expanded by utilizing the independence of left and right polarization of circularly polarized light, and the switching function of the metasurface holographic display channel is realized through the phase change degree of the phase change material. The phase-change material is introduced into metasurface holographic display, switching of different responses to incident light is achieved through thermal modulation or electric pulse modulation, and therefore different encryption degrees are achieved. The device has a wide application prospect in the fields of optical display, optical calculation and the like.
Owner:FUDAN UNIVERSITY

Faraday rotator with high length-width ratio and rectangular aperture

The invention relates to the technical field of high-power / high-energy optical passive devices, in particular to a high-length-width-ratio rectangular-aperture Faraday rotator which comprises a circular-hole rectangular light through hole, the middle of the circular-hole rectangular light through hole is rectangular, and the two ends of the circular-hole rectangular light through hole are semicircular. The space waste of a conventional circular light through hole Faraday rotator in the width direction of the rectangular light through surface is overcome, the adaptability of the light through hole of the device to a rectangular light spot application scene is improved, and the size, the weight and the cost of the device are remarkably reduced.
Owner:SOUTHWEST INST OF APPLIED MAGNETICS

Automobile single-light lens module not prone to fogging

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.
Owner:ZHENJIANG MINGFENG ELECTRONIC TECHNOLOGY CO LTD

Charged particle beam device

A focused ion beam lens column (17) of this charged particle beam device includes an ion source (41) and an ion optics (42). The ion optics (42) includes a diaphragm member (54b) provided with a plurality of through-holes that are switched in order to cause a portion of a beam of the ions (an ion beam) generated by the ion source (41) to pass therethrough. Switching is performed to select any of the plurality of through-holes while the optical conditions of the ion optics (42) are maintained in a predetermined projection mode (second projection mode). The plurality of through-holes includes fine round holes for observation that are positioned in the center of the ion beam, first rectangular holes for processing that are positioned off the center of the ion beam, and second rectangular holes for observation and processing that are positioned off the center of the ion beam.
Owner:HITACHI HIGH TECH ANALYSIS CORP

Machine vision inspection and recognition device for intelligent manufacturing equipment and its usage method

The present invention belongs to the field of visual inspection, especially a machine vision inspection and recognition device for intelligent manufacturing equipment. Aiming at the problem that the existing device can only inspect products one by one, and when inspecting products on the assembly line, it cannot work continuously and requires manual assistance, thus increasing labor costs and reducing efficiency, and being inconvenient to use. The following solution is now proposed. It includes a bottom plate, a side plate is fixedly connected to the top of the bottom plate, a top plate is fixedly connected to one side of the side plate, and two cameras are fixedly connected to the bottom of the top plate. In the present invention, by setting a clamping component to automatically clamp the object, and using the gravity of the object to drive the circular plate to rotate. At the same time, through the cooperation of the arc-shaped plate and the placement plate, it can help the second push plate move to directly below the next rectangular hole, facilitating continuous use, and can also automatically distinguish the quality of the object, which is convenient to use.
Owner:XIAN SHENGJING TIANHAO INFORMATION TECHNOLOGY CO LTD

Coaxial rectangular hole type laser cladding powder feeding nozzle

The utility model relates to the technical field of laser cladding powder feeding nozzles, in particular to a coaxial rectangular hole type laser cladding powder feeding nozzle which comprises at least two powder feeding nozzles and a cooling box, each powder feeding nozzle is provided with a powder feeding channel in the axial direction, the cooling box is provided with a cooling inner cavity, and the cooling inner cavity is provided with a rectangular hole. The cooling box is provided with a water inlet and a water outlet which are communicated with the cooling inner cavity, the cooling box is provided with a light path channel used for laser to pass through, the light path channel extends from the upper end of the cooling box to the lower end of the cooling box, and the end, penetrating through the cooling inner cavity, of the powder feeding nozzle is fixed to the cooling box. When the coaxial rectangular hole type laser cladding powder feeding nozzle is used, the nozzle is cooled through the cooling inner cavity, the whole structure is compact, the mass of the nozzle is remarkably reduced, the size of the cooling cavity is greatly increased, and therefore the excellent cooling effect is achieved.
Owner:CHANGZHOU INST OF LIGHT IND TECH

Stable optical gluing and laminating device

The utility model belongs to the field of laminating equipment, and particularly relates to a stable optical gluing laminating device which comprises a box body, a placing table is fixedly mounted at the top of the box body, an L-shaped frame is fixedly mounted at the top of the placing table, a pressing mechanism for gluing optical glass is arranged on the L-shaped frame, a plurality of rectangular holes are formed in the top of the placing table and the top of the box body, and the rectangular holes are communicated with the L-shaped frame. Positioning seats for positioning optical glass are slidably mounted in the rectangular holes, threaded rods are rotatably mounted on the inner walls of the top and the bottom of the box body, threaded seats are arranged on the threaded rods in a threaded and sleeving manner, a plurality of hinge rods are hinged to the outer sides of the threaded seats, and the top ends of the hinge rods are hinged to the corresponding positioning seats. The optical glass gluing device is reasonable in design, multi-directional positioning of different optical glass can be achieved through movement of the multiple positioning seats, the optical glass is made to be located under the pressing head, meanwhile, the pressing head can be replaced, and the purpose of gluing the different optical glass can be achieved through the pressing head.
Owner:NANYANG JIULONG PHOTOELECTRIC CO LTD

A frequency reconfigurable waveguide antenna based on bottom-side metasurface switching

The application relates to a frequency reconfiguration waveguide antenna based on bottom end metasurface switching, which comprises an antenna, a waveguide cavity and a metasurface; the antenna is a rectangular waveguide antenna; the waveguide antenna has a fixed feed port, that is, a coaxial probe penetrating through the waveguide; the waveguide antenna radiation aperture is a rectangular aperture; the metasurface is a surface attached with a special metal structure. A slide rail is embedded outside the bottom end of the waveguide, and the metasurface with a phase modulation structure can be pulled out or pushed in; by pulling out or pushing in the metasurface, the antenna has two working states, that is, working state A and working state B, which correspond to two reconfiguration frequency bands of the antenna respectively. In the application, the waveguide antenna can realize rapid reconfiguration of the working frequency through switching of the bottom end metal surface, and the radiation performance remains stable.
Owner:SHENYANG INST OF AUTOMATION - CHINESE ACAD OF SCI

An ultra-wideband high aperture efficiency planar reflectarray antenna

The present invention relates to an ultra-wideband high-aperture efficiency planar reflectarray antenna, which includes a reflectarray and a feed antenna suspended directly above the reflectarray; the reflectarray is composed of a plurality of ultra-wideband units distributed in an array; the ultra-wideband unit includes a first dielectric substrate, a metal floor and a vertical dielectric substrate; a butterfly-shaped wide-arm dipole is printed on the front of the first dielectric substrate, and a first rectangular hole penetrating the first dielectric substrate is arranged at the center of the wide-arm dipole; a phase delay line in the form of a rectangular patch is printed on both sides of the vertical dielectric substrate; a second rectangular hole penetrating the metal floor is arranged in the middle of the metal floor; the vertical dielectric substrate passes through the second rectangular hole and the first rectangular hole and is electrically connected to the wide-arm dipole. The present invention has the advantages of ultra-wideband, high gain, high aperture efficiency and easy integration, and can be applied to long-distance communication systems that require high-gain antennas, such as deep space exploration, satellite communication, radar monitoring, etc.
Owner:BEIHANG UNIV

SMT steel mesh production equipment

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.
Owner:ZHONGSHAN CHANGSHENG MASCH MFG CO LTD

System and method for improving x-ray projection imaging limit

The present disclosure provides an advanced imaging system and method for enhancing the resolution of X-ray images beyond traditional limits. The system utilizes a rectangular aperture X-ray source to project an X-ray beam through one or more pinholes, creating projections of rectangles on a detector screen. The number and overlap of these rectangles depend on the pinholes configuration. A processing unit, employs a two-dimensional difference method to decipher the images. The method isolates the corners of the rectangles, significantly smaller than the original rectangle size, thus enhancing the resolution. While a general sample can be visualized as a collection of pinholes, with more or less penetration capacity, the method is capable of achieving micrometer-scale resolution and potentially nanometer-scale resolution by using shorter X-ray wavelengths.
Owner:XU GU

Adjustable crane cross beam camber detection device

The utility model discloses an adjustable crane cross beam camber detection device which comprises a cross beam body and further comprises a receiving mechanism used for receiving laser; the emitting mechanism comprises a second mounting plate, a laser lamp is arranged at the top of the second mounting plate, four rollers which are symmetrically distributed are arranged at the bottom of the second mounting plate, a first rectangular hole is formed in the outer wall of one side of the second mounting plate, and two centrosymmetric movable blocks are inserted into the first rectangular hole; a circular hole is formed in the outer wall of the top of the movable block, a third adjusting screw rod is inserted into the circular hole, a spring is arranged at the bottom of the third adjusting screw rod, and a second pulley is arranged at the bottom of the spring. The adjustable crane cross beam camber detection device provided by the utility model has the technical effects that the automatic recording and analysis of the measurement process are realized, the measurement efficiency and accuracy are improved, the operation is simple, and the accurate measurement of the camber of the cross beam body can be realized.
Owner:GUANGDONG SPECIAL EQUIP TESTING INST FOSHAN TESTING INST

Directional dodging sheet

The utility model provides a directional dodging sheet which comprises a thin film structure layer, the thin film structure layer is arranged on the surface of one side far away from a thin film layer body, and a plurality of rectangular holes are formed in the top of the thin film structure layer. The light equalizing plate is reasonable in design, the substrate provides a setting basis for the thin film layer body and the thin film structure layer, the use reliability of the thin film structure layer is improved, meanwhile, the structural stability of the light equalizing plate is guaranteed, light is diffused to a required angle after passing through the thin film structure layer and then is emitted, and the light equalizing effect is improved. Uniform light spots are obtained on a light field receiving surface, and the uniformity of final imaging is ensured.
Owner:WUHU TOKEN SCI

An equidistant dividing device for POF heat shrink film

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.
Owner:LANXI FENGSHENG PACKAGING CO LTD

UV glue curing device

The utility model belongs to the field of UV (ultraviolet) glue, particularly relates to a UV glue curing device, and aims to solve the problems of poor curing effect and influence on the quality and the performance of the device due to non-uniform curing, inconvenience in operation and difficulty in meeting all-directional curing requirements by a fixed light source in the conventional curing mode. A first rectangular hole and a second rectangular hole are formed in the workbench, the second rectangular hole is located in one side of the first rectangular hole and communicated with the first rectangular hole, and the same fixing plate is fixedly connected between the inner walls of the two sides of the second rectangular hole. By means of the structure, a user can easily push a to-be-cured device into the upper protective shell, the sealing performance in the curing process is ensured through cooperation of the blocking plate and the notch, and the user can change the curing degree of UV glue in the device according to actual use requirements by adjusting the pushing frequency and position of the blocking plate.
Owner:GUANGDONG DUOBAISI NEW CHEM MATERIALS CO LTD

Microscope focus control system

Microscope focus control system comprising: an illuminating source 70; elongate rectangular aperture 72 that constrains the parallel (P) and perpendicular (S) polarisations of the illuminating light i
Owner:CAIRN RES

Optical lens assembly structure

The utility model relates to the technical field of optical lenses, in particular to an optical lens assembling structure which comprises an external lens, an assembling plate and a clamping mechanism, a rectangular hole is formed in the side wall of the assembling plate, the clamping mechanism is arranged in the rectangular hole, and the clamping mechanism comprises a fixed clamping plate and a movable clamping plate; the fixed clamping plate is fixedly arranged on one side of the assembling plate, and the movable clamping plate is fixedly arranged on the other side of the assembling plate through the clamping mechanism and used for rapidly fixing the external lens and the assembling plate to the back face of a mobile phone. The peripheral lens is slidably arranged in the rectangular hole, the positioning mechanism comprises a locking mechanism and a limiting mechanism, and a strip-shaped hole is formed in the hole wall of the lower side of the rectangular hole; the locking mechanism is arranged between the external lens and the strip-shaped hole, and the limiting mechanism is arranged on the side, away from the strip-shaped hole, of the external lens. According to the utility model, the assembling efficiency is greatly improved, the adjustable range is large, and the mobile phone lens assembling device can adapt to various mobile phones with different lens positions and is wide in application range.
Owner:SHENZHEN WEIRUI JINGKE ELECTRONICS

Laser ammonia escape online monitoring equipment convenient to install

The invention discloses laser ammonia escape online monitoring equipment convenient to install, and relates to the technical field of laser ammonia escape online monitoring equipment.The laser ammonia escape online monitoring equipment comprises a supporting mechanism, an adjusting mechanism is fixedly connected to the interior of the supporting mechanism, and an isolation mechanism is fixedly connected to the top of the supporting mechanism; according to the laser ammonia escape online monitoring equipment convenient to install, a top main connecting rod and a top auxiliary connecting rod which are connected to the tops of a left connecting plate and a right connecting plate are lifted, so that a top transverse rod and a top vertical rod move up and down in a side rectangular hole, and a monitoring equipment body on an outer movable disc can be lifted; in this way, the monitoring equipment body is convenient to install, people do not need to climb high, meanwhile, during maintenance, the bottom rotating disc can be rotated, the outer movable disc can be lowered, maintenance and replacement of the monitoring equipment body are facilitated, due to the design, the equipment is convenient to install, and the working efficiency during maintenance is improved.
Owner:NANJING LONGXUAN LINGSHENG TECH CO LTD

Metasurface structure, preparation method thereof and metasurface device

The invention relates to the technical field of metasurface biosensing, in particular to a metasurface structure, a preparation method thereof and a metasurface device.The metasurface structure comprises a plurality of basic unit structures which are periodically arranged in the length direction and the width direction of the metasurface structure; at least one group of hole array is etched on the basic unit structure substrate, each group of hole array comprises two nanoimprint rectangular holes, and the two nanoimprint rectangular holes form opposite rotation angles in the width direction and are arranged in an axial symmetry manner in the length direction; and the metal layer covers the surface of the substrate and the bottom of the nanoimprint rectangular hole to form two layers of metal films so as to form a plasma resonance structure. Through the combination of the nanoimprint process and the rotational symmetry breaking design, a low-cost and tunable BIC metasurface device is realized, the limitation of traditional high-cost processing and a single resonant mode is solved, and the BIC metasurface device has a wide prospect in the fields of biosensing, spectrum detection, terahertz application and the like.
Owner:NAT INNOVATION INST OF DEFENSE TECH PLA ACAD OF MILITARY SCI

Prefabricated column mounting device

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.
Owner:SHANGHAI ERSHIYE CONSTR CO LTD +1

Clamping device for circular optical lens edge grinding machine

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.
Owner:XIANGYANG QIAO JINCHENG OPTICAL INSTRUMENT CO LTD

A kind of dry granulator sight glass mounting device

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.
Owner:ZHEJIANG CANAAN TECH

Filtering differential tube, gas filtering pool and beam suppression method

The invention discloses a filtering differential tube, a gas filtering pool and a beam suppression method, and belongs to the technical field of high-energy photon and particle beam regulation and control. Each filtering differential tube comprises a round tube, an end plate and a differential hole consisting of a front-end rectangular hole and a rear-end reducing hole, and the divergence of gas molecules is enhanced by the design of a reducing angle of 3 degrees; the gas filtering tank is connected in series through 12 stages of vacuum cavities and is configured with a graded pumping system, so that the higher harmonic absorption efficiency is optimized; and the beam effect is weakened by replacing the differential tube, so that the vacuum degree of the No.11 vacuum cavity is improved by 9.8%. The problem that a traditional gas filtering pool is remarkable in beam effect is solved, the vacuum degree of the 11 # vacuum cavity is improved, and the gas filtering pool can be widely applied to scenes such as synchrotron radiation light sources and particle accelerators.
Owner:UNIV OF SCI & TECH OF CHINA

Fiber optic cable assembly incorporating rigid sleeve, and method for splicing multiple optical fibers

Perimeter external surfaces of arrays of hard polymer coated optical fibers with precise concentricity are used as datum surfaces for aligning (with an inter-core misalignment tolerance of less than 1 μm) mechanically spliced optical fiber arrays received within a rectangular bore of a rigid sleeve that is devoid of fiber alignment grooves. A method for splicing arrays hard polymer coated optical fibers involves forming ribbonized segments of the arrayed optical fibers, and receiving non-ribbonized segments of the arrays in contact with one another and with walls defining a rectangular cross-section bore of a rigid sleeve. A rigid sleeve for mechanically splicing arrayed optical fibers includes a unitary body structure having a medial portion with a rectangular cross-section bore arranged between first and second extension portions each having a U-shaped channel, with continuous bottom and side walls between the medial and extension portions, and with the sleeve being devoid of fiber alignment grooves.
Owner:CORNING RES & DEV CORP

Spin coating chamber structure for improving edge effect defect of rectangular substrate

The invention discloses a spin-coating chamber structure for improving edge effect defects of a rectangular substrate. The spin-coating chamber structure comprises a chamber side wall, a rounding plate, a spin-coating bottom plate and a chamber top cover, a rectangular hole, a pressure relief groove and a drainage channel are formed in the rounding plate. Due to the fact that the drainage channels composed of the contraction sections, the throats and the diffusion sections are arranged outside the four corners of the rectangular hole of the rounding plate, spin-coating external tangential airflow is accelerated in the drainage channels, negative pressure areas are formed at the four corners of the base plate, liquid accumulated at the corners is promoted to be discharged outwards, and the volume of edge effect accumulated liquid is reduced. Due to the fact that the pressure relief groove is formed outside the drainage channel, a low-resistance relief channel is provided for airflow passing through the throat in the rotating process. Meanwhile, air at the outer edge flows at a high linear speed to form high dynamic pressure driving in the pressure relief groove, the venturi suction flow field characteristic is shown in the drainage channel, and the liquid at the angular point of the base plate is further promoted to flow out in the radial direction under the pressure effect.
Owner:DALIAN UNIV OF TECH

Laser profile detection device and detection method

The embodiment of the present invention discloses a laser profile detection device and detection method. The laser profile detection device includes a rectangular aperture module, an energy detector, a moving module, and a processing module; the rectangular aperture module is arranged at the light output end of the light beam generating module, and the rectangular aperture module includes a rectangular light-through hole; the energy detector is arranged on the light-outlet side of the rectangular light-through hole, and is used to detect the light intensity of the light transmitted by the rectangular light-through hole; the moving module is connected to the light beam generating module and / or the rectangular aperture module, and is used to drive the light beam generating module and / or the rectangular aperture module to move, so that the rectangular light-through hole sequentially passes the light at each position of the laser beam; the processing module is electrically connected to the energy detector, and is used to obtain the two-dimensional profile distribution of the laser beam according to the signal received by the energy detector. The technical solution of the embodiment of the present invention can realize the spot profile measurement compatible with large size, mid-to-far infrared, and large aspect ratio.
Owner:SHANGHAI MICRO ELECTRONICS EQUIP (GRP) CO LTD

Glasses pendant

The invention provides a glasses pendant, and relates to the technical field of pendant structures, the glasses pendant comprises a pendant main body, the pendant main body is provided with a through hole of a strip-shaped hole-shaped structure, the pendant main body is also provided with a suspension hole of a rectangular hole-shaped structure, the suspension hole is communicated with the through hole, the width of the suspension hole is smaller than that of the through hole, and a pile head is suspended at the suspension hole; a rotating shaft is in threaded connection with the hanging piece body, and a limiting plate is rotationally arranged on the rotating shaft and located in the penetrating hole. Through the design of the through holes and the hanging holes, the glasses frame can adapt to glasses legs with different thicknesses and is suitable for hanging glasses of different types. Meanwhile, through the design of a limiting plate, the combination of a locking ball and a spiral spring and the design of a clamping groove, the stability of the limiting plate during closing is ensured, the through hole can be closed during limiting closing, and the glasses are prevented from shaking too much in the wide through hole.
Owner:YIWU MICROSECA TECHNOLOGY CO LTD

Large aperture space remote sensing camera recoverable unlocking support

The application relates to a large-diameter space remote sensing camera recoverable unlocking support, in a locking state, two explosive bolts are respectively connected with upper and lower sections of a threaded connecting cylinder after penetrating through central holes of an upper pressing block and a conical block, four wedge blocks are uniformly distributed along the circumference of the threaded connecting cylinder, two wedge grooves on the wedge blocks are matched with a first conical boss of an upper support and a second conical boss of a lower support respectively, a rectangular groove is used for installing and placing an annular spring, a leaf spring is hung on a lower support annular groove through a through hole of the wedge block and a rectangular hole of the upper pressing block, and the upper end of the leaf spring is fixed with the upper pressing block; the explosive bolts are exploded and unlocked, the wedge grooves are separated from the conical bosses, the conical block is withdrawn, and the four wedge blocks are recovered together and clamped on the threaded connecting cylinder. After unlocking, all free structural members in the support are constrained and recovered, the risk that the free structural members are irregularly moved to cause the support to be stuck or the free structural members are moved to the outside of the support to become redundant objects is eliminated, and the requirement of a large movement distance after the support is unlocked can be met.
Owner:CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI

Perforating device for low-noise optical glass processing

The invention relates to a low-noise punching device for optical glass processing, and belongs to the technical field of glass processing. Comprising a workbench, optical glass, a clamping mechanism and a detection mechanism, a supporting frame is fixedly arranged at the top of the workbench, a first rectangular hole is formed in one side of the supporting frame, a first lifting strip is slidably arranged in the first rectangular hole, and a first electric push rod is fixedly arranged at the top of the supporting frame in a penetrating mode; by means of the synergistic effect of the electric push rods and the motor, stable lifting and accurate positioning punching of the laser head are achieved, meanwhile, the clamping mechanism drives a clamping block to be tightly attached to optical glass through a spring, the stability in the machining process is ensured, and the machining efficiency is improved. Through cooperation of the adjusting mechanism and the limiting assembly, the material table can flexibly rotate and be accurately positioned, the complex punching requirement is met, the intelligent detection mechanism drives a detection rod through air pressure, accurate detection of the direction and the size of a hole is achieved, and the machining quality is ensured.
Owner:OPTICAL TECHNOLOGY (JIANGSU) CO LTD

A foolproof device for testing crystal head

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.
Owner:LIANOLOGY CO LTD