34 results about "Annular beam" patented technology

The invention relates to the technical field of heat dissipation devices, in particular to an annular beam heat dissipation device based on an MEMS device, and the device comprises an air inlet grid port which is located at the uppermost end of the heat dissipation device and is used for enabling external air to enter the heat dissipation device and filtering impurities in the air at the same time; the piezoelectric vibrator is used for driving airflow and providing a reliable power source for each structure at the same time; the flexible FPC is used for providing stable electric energy supply and signal transmission for the piezoelectric vibrator; and the impact platform is used for receiving the heat of the equipment needing to be cooled, taking away the heat through air beam heat exchange and discharging the air flow after heat exchange at the same time. Air flow driving force is formed through vibration of the piezoelectric ceramic piece in an electric field, external cold air is driven into the heat dissipation device, efficient heat dissipation is achieved, and the heat dissipation problem that the performance of a CPU is limited in a narrow space is solved.

The application discloses a three-piece Bessel beam shaping system with a diffraction ring, and belongs to the technical field of laser processing, comprising: a beam shaping mirror, a first collimating mirror and a focusing mirror; the incident surface and the exit surface of the beam shaping mirror are annular planes and annular aspheric surfaces respectively, and are used for shaping a collimated Gaussian beam into a point annular beam with energy gradually decreasing from inside to outside; the incident surface and the exit surface of the first collimating mirror are annular aspheric surfaces and annular planes respectively, and are used for collimating the point annular beam; the incident surface of the focusing mirror is a combination of an axicon surface and a spherical surface, and the exit surface is a plane; the focusing mirror is used for focusing the collimated point annular beam into a Bessel beam with a diffraction ring. The application can significantly improve the focal depth of the Bessel beam in laser processing, and can also effectively remove processing materials such as ink. In addition, the focal depth of the Bessel beam in the application is adjustable, and the adjustment mode is more, the flexibility is higher, and is suitable for different laser processing scenes.

The invention provides a hollow laser processing optical system based on a beam splitting reflector, which belongs to the technical field of laser processing and comprises a collimating lens, a conical lens, a beam splitting reflector, a first plane reflector, a second plane reflector, a third plane reflector, a fourth plane reflector, a beam combining reflector and a focusing lens which are sequentially arranged along a light path. The collimating lens collimates a laser beam, the conical lens converts a circular beam into an annular beam, the beam splitting reflector splits the annular beam into two semi-annular beams, the two semi-annular beams are combined into a complete annular beam by the beam combining reflector after being reflected by the plane reflector, and the complete annular beam is focused by the focusing lens to process a material. The reflector is used for achieving beam splitting instead of a beam splitting lens, the laser processing power and the system stability are improved while light beam shielding is avoided, and the requirements of coaxial wire feeding laser processing and laser-arc coaxial processing can be met.

The invention discloses an annular light generating device based on a diffuser, which is applied to the technical field of optical equipment, and aims to solve the problems that the annular light generating device is complicated in structure and inconvenient to use and influences the performance of an annular light beam, the annular light generating device comprises the diffuser and a driving mechanism, and the diffuser is connected with the driving mechanism; a first side surface of the diffuser is provided with a micro-lens unit array for diffusing and homogenizing light beams, and a second side surface of the diffuser is provided with a grating for deflecting incident light beams; the first side surface is opposite to the second side surface; the driving mechanism is used for driving the diffuser to rotate around the axis; the diffuser is used for performing scattering and dodging shaping on vertically incident laser beams through the micro-lens unit array on the first side surface in the rotating process, outputting light beams with inclination angles through the grating on the second side surface, and rotating at a high speed under the driving of the driving mechanism to form annular light beams; the device is simple in structure, small in size, low in manufacturing and machining difficulty, convenient to use and capable of improving the annular beam performance.

This invention discloses a flat plate lens and device for multi-angle annular uniform illumination in the terahertz band, relating to the field of terahertz active imaging. By setting multiple annular grooves or constructing a randomly rough surface on the exit surface of a flat plate lens with an air hole array and a center point defect, this invention can convert a Gaussian-distributed terahertz beam irradiated by a terahertz source into a multi-angle annular uniform illumination beam. This allows the terahertz wave to illuminate the target from different angles, increasing the reflected wave signal entering the detection system. This has significant application value for terahertz waves in non-destructive testing and human security inspection. Furthermore, in a reflective terahertz active imaging system, compared to a circular beam, the annular beam can convert small-angle incident light with low imaging utilization in the central part into large-angle incident light with higher imaging utilization, thus improving energy utilization while providing multi-angle illumination.

The invention relates to the field of steam curing, and discloses an informatization management intelligent annular beam factory steam curing system which comprises a steam curing bin and a plurality of steam pipe fittings, a steam curing cavity is formed in the steam curing bin, and the steam pipe fittings are arranged at the top of the steam curing cavity in a sliding mode. A plurality of bearing assemblies distributed in the length direction of each steam pipe fitting are correspondingly arranged below each steam pipe fitting, the bearing assemblies are arranged at the bottom of the steam curing cavity, the bearing assemblies are used for bearing arc-shaped assemblies of an annular beam, and based on the number of the bearing assemblies triggered by the arc-shaped prefabricated beam sections, the number of the arc-shaped prefabricated beam sections is larger than that of the arc-shaped prefabricated beam sections. The position of each section of the arc-shaped precast beam section can be identified by identifying the position of each section of the arc-shaped precast beam section, so that the steam pipe fitting can be driven to automatically slide to the corresponding section, and a spray hole of the steam pipe fitting directly faces an actually-borne arc-shaped beam section area, so that accurate steam coverage is realized, the steam pipe fitting dynamically slides along with the position of a bearing assembly, and the spray center is always aligned with the curvature center of a component; personalized steam path planning is achieved, and the problem that a traditional spray pipe is fixed is solved.

The utility model relates to reinforcing device technical field discloses a kind of annular beam wood formwork reinforcing devices, including first cross bar, second cross bar and vertical pole, several second cross bars are connected between two vertical poles vertically to constitute a support frame, two support frames are vertically arranged side by side, and two second cross bars of the same height on two support frames are connected with two first cross bars side by side from front to back, and the space of the annular beam wood formwork limiting is enclosed by several first cross bars and several second cross bars in two support frames;The connecting height of second cross bar on vertical pole is adjustable, and the connecting position of first cross bar on second cross bar is also adjustable;The outer side of the opposite side of two support frames is equipped with support mechanism;Bottom between two support frames is also equipped with fixed mechanism.The utility model has realized the effective reinforcement to annular beam formwork, and the mounting frame with reinforcing effect also has the advantages of simple installation, easy adjustment, not easy to dump when using.

Disclosed in the present invention are a reflective scanning super-resolution optical microscopy system and method based on annular illumination. The system comprises a sample displacement module, an optical microscopy imaging module, an annular beam generation module, a beam scanning module, a super-resolution focusing illumination and collection module, a super-resolution optical imaging module and a computer. The advantages of annular beam illumination, high focusing efficiency of conventional lenses and fast beam scanning speed are utilized to achieve high-efficiency super-resolution focusing illumination, so as to further achieve fast super-resolution optical microscopic imaging by using conventional optical lenses; two-dimensional beam scanning is used to achieve non-labeled far-field super-resolution two-dimensional microscopic rapid imaging; and non-labeled far-field super-resolution two-dimensional microscopic imaging is performed on samples at different axial positions to acquire super-resolution two-dimensional microscopic imaging of different cross sections of the samples, so as to achieve three-dimensional tomography. The present invention can be applied to non-labeled super-resolution microscopic rapid imaging of biological samples, and can also be applied to industrial-related super-resolution microscopic detection and other fields.

The utility model relates to the technical field of subway construction, in particular to a connector structure of a newly-built channel of an existing underground station. Comprising a connector ring beam arranged on the outer side of the side wall of the existing underground station, the connector ring beam is arranged along the annular connecting face of the side wall of the existing underground station and a newly-built channel concrete structure, the connector ring beam is in an integrally-closed annular beam shape, and the contact face between the connector ring beam and the side wall of the existing underground station is arranged in the vertical direction; the connector ring beam steel bars are fixedly connected with the side wall of the existing underground station through embedded steel bars arranged in the horizontal direction. The connector ring beam located on the outer side of the side wall of the existing underground station can be poured at a time, the number of construction joints is reduced, and a closed reinforcing ring frame structure is rapidly formed around the holing part, so that the side wall of the existing underground structure can still keep good stability and resist various external forces after holing, and the service life of the side wall is prolonged. And then the existing structure in the interface range is chiseled away at a time, so that the construction is more convenient.

Disclosed are a multifocal point-ring spot generation system and a laser welding method in the technical field of laser processing. The system includes an annular light source, a first collimating lens, an annular beam generation module, and a first reflector arranged sequentially at intervals along a first straight-line direction, and a point light source, a second collimating lens, a first focusing lens, a multi-curvature hollow reflector, and a second focusing lens arranged sequentially at intervals along a second straight-line direction, where the multi-curvature hollow reflector and the second focusing lens are each provided with a through hole at their centers for allowing a beam emitted by the point light source to pass therethrough, and the multi-curvature hollow reflector has an adjustable mirror surface curvature. The system can solve the technical problems of high processing cost and poor stability in deep welding caused by structural constraints of point-ring lasers in the prior art.

The application discloses a kind of orthogonal formula cable net air film support structures for shallow round warehouse construction, including orthogonal formula cable structure, lower air bag type membrane structure, upper air bag type membrane structure and connecting cooperation assembly;The orthogonal formula cable structure is fixed on the shallow round warehouse concrete ring beam.Greatly improve construction safety, reduce operation risk, reduce high-altitude dangerous operation: core components (such as main cable, secondary cable, membrane body) are prefabricated in factory, only need to assemble and hoist on site, avoid traditional full frame a lot of high-altitude erection operation, reduce the hidden trouble of high formwork collapse, high-altitude falling object from source, main cable and secondary cable are realized rigid fixation by metal connecting buckle, avoid cable net dislocation.Optimize load conduction, improve structural bearing reliability, orthogonal cable net balanced stress, main cable and secondary cable are perpendicular and cross and adhere to each other, form mesh stress system, the load of conical shell formwork is evenly transmitted to shallow round warehouse concrete ring beam, avoid local stress concentration.

Reduces malfunctions in optical modules caused by collisions. [Solution] The optical probe 10 comprises an optical module 11 configured to irradiate the inner surface of an object to be inspected with an annular beam 20, an imaging device 12 positioned to receive the light reflected from the inner surface of the object to be inspected, and a cover member 32 configured to cover the optical module 11.

The utility model discloses a kind of laser processing assembly and laser processing equipment, the laser processing assembly includes: along laser transmission direction common optical axis is sequentially arranged flat concave lens, flat convex lens, cone lens, aspherical condenser lens and focusing lens;Laser beam emitted by laser, form annular beam after being diffused by flat concave lens, the diffraction angle is reduced by flat convex lens and cone lens in turn, annular beam is modulated to form annular parallel light beam by aspherical condenser lens, annular parallel light beam is focused to the processing position of object to be processed by focusing lens.Can the laser beam emitted by laser is shaped focus, then induce modified glass.

This invention provides a multi-focal point ring spot generation system and a laser welding method. [Solution] The system comprises annular light sources 11, a first collimator lens 12, an annular beam generation module 13, and a first reflector 14, arranged sequentially at intervals along a first linear direction; and point light sources 21, a second collimator lens 22, a first focusing lens 23, a multi-curvature hollow reflector 24, and a second focusing lens 25, arranged sequentially at intervals along a second linear direction. Through holes are provided in the centers of the multi-curvature hollow reflector and the second focusing lens through which the light beam emitted from the point light source passes, and the curvature of the mirror surface of the multi-curvature hollow reflector is adjustable. This solves the technical problems of conventional point-ring laser devices, such as soaring processing costs and reduced stability in deep welding, which are caused by structural constraints.

The invention relates to a method for forming a non-pneumatic tire constructed from a thermoplastic elastomer that is pre-tensioned during the process of its formation. The pre-tensioning is provided by thermal means that are naturally available in the forming process. This creates an efficient manufacturing process without the complexity of adding pre-tensioning by mechanical means. The method for forming a non-pneumatic tire includes: injecting a tread portion (101) and an annular beam (102) having circumferential reinforcements into a mold that only supports a tread pattern on the outer diameter limits of the tread pattern; injecting a rim (104) extending radially inward from the annular beam (102); and forming an annular support (103) comprised of a thermoplastic elastomer extending radially inward from the annular beam (102). The thermoplastic elastomer is hardened, and the tire is removed from the mold.

A method for laser keyhole welding is disclosed to weld two pieces made of a metal alloy together. The method independently adjusts the power of a focused central beam and the power of a concentrically focused annular beam. At the end of the weld, the power of the annular beam (PA) is decreased, the motion of the focused beam is stopped, the power of the central beam (Pc) is increased, and the power of both beams is initially ramped down quickly and then ramped down slowly. Increasing the power of the central beam equalizes the temperature of the two pieces before solidification and cooling at the termination of the weld. Additional power pulses can be applied to prevent the formation of defects or to eliminate any defects.

According to the beam shaping device and the harmonic generation device provided by the invention, the annular beam is generated through the reflection cone mirror group, and the power loss and the heat effect influence on the incident high-power femtosecond laser are reduced to the greatest extent. The light beam shaping device comprises a plane mirror which is provided with a through hole for a laser beam to pass through and is obliquely arranged relative to the optical axis of the laser beam; the conical reflecting mirror group is used for reflecting a laser beam entering through the through hole to a reflecting area, located around the through hole, of the plane reflecting mirror and outputting an annular light beam, and the conical reflecting mirror group comprises a convex conical reflecting mirror of which the convex conical surface faces the direction of the plane reflecting mirror; the concave conical surface reflecting mirror is connected and fixed with the convex conical reflecting mirror, the concave conical surface faces the plane reflecting mirror and surrounds the convex conical surface of the convex conical reflecting mirror, and the concave conical surface reflects the laser beam reflected by the convex conical surface to the reflecting area of the plane reflecting mirror; the vertex of the convex conical surface of the convex conical reflector and the vertex of the concave conical surface of the concave conical reflector are located on the optical axis of the laser beam.

The application provides a kind of multi-focal point ring light spot generation system and laser welding method, belongs to laser processing technical field.The system includes ring light source, first collimating lens, annular beam generation module and first reflector arranged in turn along first linear direction with interval, point light source, second collimating lens, first focusing mirror, multi-curvature hollow mirror and second focusing mirror arranged in turn along second linear direction with interval, multi-curvature hollow mirror and second focusing mirror center are provided with the through hole for the light beam emitted by point light source to pass through, the mirror surface curvature of multi-curvature hollow mirror is adjustable.The technical problem of high processing cost and poor deep layer welding stability caused by the structure limitation of point ring laser in prior art can be solved.

The utility model discloses a carbon dioxide laser annular beam optical fiber tapering machine which comprises a laser light source box, one side of the laser light source box is fixedly connected with a light source carbon dioxide laser, and the light source end of the light source carbon dioxide laser emits laser beams. The laser beam is turned to the position above the laser light source box through a refraction mechanism, a red light mechanism is arranged at the top of the laser light source box, the laser beam and the red light mechanism form laser and red light rays, the laser beam and the red light mechanism form light spots, and how the annular light beam is generated is not elaborated. According to the carbon dioxide laser annular light beam optical fiber tapering machine, the annular light beam can be reflected to the reflecting mirror and then is emitted to the concave mirror through the reflecting mirror and the aperture, so that the annular light beam can be regathered into a light spot to be emitted to the workbench, laser and red light act at the same time for tapering machining, and therefore external interference factors can be greatly reduced; the temperature fluctuation range is small, and the effect of guaranteeing the product performance consistency and the high yield is achieved.

The application discloses a kind of plane hollow vortex light field lasers, including fiber-coupled output semiconductor laser array (1), plano-convex lens (2), axicon lens (3), laser gain medium (4) and axicon lens (5). Fiber-coupled output semiconductor laser array (1) is the pump source of laser;Pump beam coupling system is composed of plano-convex lens (2) and axicon lens (3), generates focusing annular beam for exciting vortex phase laser to run in resonant cavity;Axicon lens (3) conical surface and axicon lens (5) cylindrical surface constitute the resonant cavity of laser, for obtaining the center as circular hollow plane vortex light field laser. Plane hollow vortex light field laser can be used for the inside processing and cutting of cylindrical material, high-precision plane scanning or plane polishing and the like.

The utility model relates to a door hook device for an oven door cleaning test, which belongs to the technical field of vertical coke ovens and particularly comprises a base and a fixed upright post mounted on the base, a transverse moving frame is mounted on the base in a sliding manner and positioned on one side of the fixed upright post, and an annular beam is mounted at the top of the transverse moving frame and positioned on one side of the fixed upright post. The door hook device for the furnace door cleaning test is characterized in that the door hook device comprises an annular beam and a transverse moving frame, the annular beam is sleeved on a fixed stand column, the transverse moving frame is provided with a door hook structure, and the door hook structure is used for installing a test furnace door.

The invention provides a giant supporting structure used for the bottom of a tall tower, the giant supporting structure used for the bottom of the tall tower comprises a foundation, a core tube, an annular steel beam structure, a supporting steel beam structure and six rectangular steel column structures, each rectangular steel column structure is composed of a first rectangular steel column buried underground and a second rectangular steel column with variable inclination on the ground, the annular steel beam structure is composed of four layers of horizontal annular steel beams, all the rectangular steel columns are connected into a whole, the supporting steel beam structure is composed of three layers of radial supporting steel beams, the annular steel beams and the outer wall of the core tube are connected, gaps are reserved between the annular steel beams and the outer wall of the core tube, and the foundation, the core tube, all the steel columns, the annular beams, the supporting beams, connecting joints of the annular beams and the supporting beams and an aluminum plate coating layer are installed. Through the structure, the core tube and the peripheral giant supporting system are combined into a cooperatively stressed space combined giant column, and through a clear force flow path of annular beam distribution, supporting beam transmission and inclined steel column conversion, a huge horizontal load is efficiently converted into an anti-overturning moment which is transmitted to a foundation.

The invention discloses a Bessel beam and Gaussian beam complementary quantum cascade laser beam combination method and device, and relates to the laser technology, and the device comprises a first laser source which is used for generating a fundamental transverse mode / quasi-fundamental transverse mode Gaussian beam, and outputting the beam to an annular beam combiner; the second laser source is used for generating a fundamental transverse mode / quasi fundamental transverse mode Gaussian beam and outputting the fundamental transverse mode / quasi fundamental transverse mode Gaussian beam to the beam shaping system; the light beam shaping system is arranged on a light emitting path of the second laser source and is used for shaping a light beam output by the second laser source into a required high-order Bessel light beam; the annular beam combiner is a reflecting mirror with a central through hole and an annular reflecting area, the fundamental transverse mode / quasi fundamental transverse mode Gaussian beam output by the first laser source penetrates through the central through hole, the shaped high-order Bessel beam enters the annular reflecting area and is reflected, and the two beams are coaxially combined through the annular beam combiner. The invention provides a quantum cascade laser beam combining scheme capable of improving output power and brightness at the same time.

This application provides a lifting device for lifting or tilting an object to be lifted. The lifting device includes: a main lifting ring capable of 360° rotation; a ring beam assembly including at least one ring beam and multiple slings, wherein at least one ring beam is connected to the main lifting ring, the ring beams are connected to the object to be lifted via slings, and the ring beams are interconnected; and a traction assembly including a traction rope and a positioning device; one end of the traction rope is connected to the ring beam or the object to be lifted, and the other end is fixed to the ground via the positioning device. This design solves the problems of lifting, tilting, and positioning ring-shaped or irregularly shaped structures that are difficult to address in the prior art, while also enhancing the safety of lifting operations.

The invention provides a light generating system (1000) comprising a first light generating device (110), a luminescent body (1200), a thermally conductive element (500), and an axicon-like optical element (400); wherein: (A) the first light generating device (110) is configured to generate first device light (111); the first light generating device (110) comprises one or more of a superluminescent diode and a solid state laser; (B) the luminescent body (1200) comprises a luminescent material (200) configured to convert at least part of the first device light (111) into luminescent material light (201); the luminescent body (1200) has an annular shape; (C) the thermally conductive element (500) (a) is configured in thermal contact with at least part of the luminescent body (1200), and (b) is reflective for one or more of the first device light (111) and the luminescent material light (201); (D) the axicon-like optical element (400) comprises a first part (410) and a second part (420), and has an optical element length (L); the first part (410) has a conical shape, a first length (L1), and comprises a first end window (411); the second part (420) has a cylindrical shape, a second length (L2), and comprises a second end window (422); wherein 0.7≤L2 / L<1; and (E) the axicon-like optical element (400) is configured to: (a) receive at least part of the first device light (111) via the first part (410) and provide an annular beam of first device light (111) via the second part (420) to the luminescent body (1200), and (b) collect at least part of the luminescent material light (201) via the second part (420) and provide a beam of luminescent material light (201) via the first part (410).

A rear vehicle body structure and a vehicle. The rear vehicle body structure comprises a rear floor (1), a first side panel (2), a roof beam (3) and a second side panel (4) which are connected in sequence and form an annular structure. The rear floor (1) is provided with a first cross beam (5) and a second cross beam (7), the first side panel (2) and the second side panel (4) are each provided with a first vertical beam (6) and a second vertical beam (8), and the first cross beam (5), the first vertical beam (6) of the first side panel (2), the roof beam (3) and the first vertical beam (6) of the second side panel (4) are connected in sequence to form a first annular beam structure. The rear floor (1) is provided with the second cross beam (7), the first side panel (2) and the second side panel (4) are each provided with the second vertical beam (8), the second vertical beam (8) is connected to the first vertical beam (6) via a first connecting frame (9), and the second cross beam (7), the second vertical beam (8) and the first vertical beam (6) of the first side panel (2), the roof beam (3), and the first vertical beam (6) and the second vertical beam (8) of the second side panel (4) are connected in sequence to form a second annular beam structure.

The invention discloses a detachable manual hole digging open caisson system for deeply buried pipeline detection and a construction method, and relates to the technical field of geotechnical engineering. The recoverable supporting structure comprises a top cover section cylindrical structure, a standard section cylindrical structure and a blade foot section cylindrical structure which are detachably arranged in sequence from top to bottom; the reaction frame stand columns are symmetrically distributed on the periphery of the recoverable supporting structure, and a reaction frame annular platform, a well mouth stabilizing annular beam and a well mouth hoisting beam are sequentially arranged on the reaction frame stand columns from bottom to top at intervals. According to the method, the recyclable manual hole digging assembly type open caisson and the integrated ground penetrating radar array are comprehensively utilized for detecting the underground deeply-buried pipeline, and the method has the advantages that the temporary road occupation area is small, traffic interference is small, the protective detection requirement is met, and the detection result is visual and clear; basic data are provided for formulating an existing important underground pipeline protective construction scheme, and safety guarantee is provided for construction of underground new subway tunnel engineering and the like.

According to the invention, deviation of the coating amount or the coating range of an adhesive caused by different operators is inhibited, and the construction quality of mounting operation in a solar cell panel bracket is ensured. A coating aid for coating an adhesive for mounting a solar panel holder, the coating aid comprising: an outer frame part; and an opening forming portion provided with a plurality of openings through which the adhesive passes, the opening forming portion having a plurality of annular beam portions provided in an insert shape and a plurality of intersecting beam portions connected to the outer frame portion and intersecting the annular beam portions, the plurality of openings being configured from through-holes in the thickness direction surrounded by the annular beam portions and the intersecting beam portions.

This helps to suppress variations in the amount and area of ​​adhesive applied by different workers, thereby guaranteeing the quality of installation work on solar panel mounting structures. [Solution] The adhesive application aid used for mounting solar panel frames comprises an outer frame and a section with multiple openings through which the adhesive passes. The opening section has multiple nested annular beam sections and multiple intersecting beam sections connected to the outer frame and intersecting each annular beam section. The multiple openings are formed by through holes in the thickness direction surrounded by the annular beam sections and intersecting beam sections.

The invention discloses a beam combining method and device for a quantum cascade laser of an aberration-induced annular light spot, and relates to the laser technology, and the device comprises a first laser source which is used for generating a fundamental transverse mode / quasi-fundamental transverse mode Gaussian beam; the second laser source is used for generating a fundamental transverse mode / quasi fundamental transverse mode Gaussian beam; the aberration induction optical system is positioned on a light emitting path of the second laser source and is used for introducing controllable spherical aberration or other aberrations, so that an annular light spot with a low-energy dark area in the center is formed on a specified focal plane, and a light beam emitted from the aberration induction optical system enters the annular beam combiner; the annular beam combiner is provided with a central through hole and an annular reflecting area, the central through hole is matched with the inner diameter and the outer diameter of the annular light spot, the fundamental transverse mode / quasi-fundamental transverse mode Gaussian beam output by the second laser source penetrates through the central through hole, the annular light spot is reflected by the annular reflecting area, and beam combination is achieved. According to the quantum cascade laser beam combination scheme, annular light spots can be generated by using a mature optical lens, and efficient beam combination is carried out.