38results about How to "Adjust size" patented technology

The invention belongs to the technical field of high polymer material, relating to a method for preparing nanofiber containing a polymer pore structure, wherein the pore structure is formed on the fiber by a chemical reaction foaming method. The method comprises the following steps of: dispersing the inorganic salt, capable of discharging gas by reaction, in polymer solution, preparing super fine nanofiber by a high pressure static spinning method, immerging the obtained fiber in reaction solution, reacting the inorganic salt in the fiber, discharging the gas, and forming the pore structure on the fiber. The method has the advantages of obtaining the pore structure-containing nanofiber with controllable aperture number and uniform distribution, greatly increasing the specific surface area of the nanofiber and widening the application range of the nanofiber prepared by the electric spinning method. The prepared fiber has high application value in releasing medicine, carrier of catalyst, filtering absorbing material and the like. The method of the invention is wide in application range and can be directly applied to preparing the pore structure-containing nanofiber of a plurality of materials such as PS (polystyrene), PMMA (polymethyl methacrylate), PU (polyurethane), etc.

The invention provides a rotary braiding machine, comprising a drive assembly, a reversing assembly and a yarn-carrying seat, the drive assembly comprises yarn-carrying disks which are arranged in lines and rows and are rotated simultaneously, the yarn-carrying seat is connected with a yarn-braiding spindle and moves ahead under the drive of the yarn-carrying disks, the reversing assembly comprises moveable partition plates arranged among the lines and rows of the yarn-carrying disks and fixed partition plates arranged on the peripheries of the lines and rows of yarn-carrying disks, at least two rail edges are formed on each moveable partition plate, each moveable partition plate rotates intermittently to form the inner movement locus of the yarn-carrying seat, and fixed rails are arranged on the fixed partition plates to form the automatic retracing movement locus of the yarn-carrying seat on an edge. Therefore, the movement path of a yarn-carrying device can be reliably controlled on a predetermined path so as to reduce the failure rate of the braiding machine, and simultaneously, being matched with special external assemblies, the rotary braiding machine can realize the continuous braiding of a preformed assembly with a needed section shape, thereby increasing the working efficiency and reducing the cost.

The invention discloses a high-speed terahertz modulator and a production method thereof. The terahertz high-speed modulator comprises a substrate layer, a buffer layer growing on the substrate layer, a strained quantum well structure growing on the buffer layer and a metal meta-material structure, wherein the metal meta-material structure is prepared on the upper surface of the strained quantum well structure and consists of a periodical array of metal resonant units. Besides, the buffer layer and the substrate layer are made of the same materials, the band gap of a potential well layer is smaller than that of a potential barrier layer, and the difference between the lattice constants of the potential barrier layer and the substrate layer is controlled within 0.5%. A strong piezoelectric field generated from strain is formed in strained quantum well structure, and accordingly recombination lifetime of photon-generated carriers is prolonged and concentration thereof is increased evidently, and requirements for power of a modulated laser are lowered greatly. By changing the In component and quantum well width in the InGaAs / GaAs strained quantum well structure, the strength of the piezoelectric field inside and charge spatial isolation degree can be regulated flexibly, and accordingly the modulation rate of the high-speed terahertz modulator can be regulated conveniently.

The invention discloses a wear-resistant antifouling glazed brick glaze and a preparation method thereof. The wear-resistant antifouling glazed brick glaze comprises raw glaze powder, No.1 frit powderand No.2 frit powder, wherein the raw glaze powder comprises the following raw materials in percentage by weight: 8-12% of kaolin, 10-18% of calcined kaolin, 12-20% of quartz, 12-20% of dolomite, 8-15% of calcined talc, 1-5% of wollastonite, 8-15% of nepheline, 5-10% of zinc oxide, 0-5% of calcite and 6-12% of strontium carbonate, wherein the No.1 frit powder is prepared from kaolin, calcined talc and fluorite, and the No.2 frit powder is prepared from zinc oxide, strontium carbonate and borax. The wear-resistant antifouling glazed brick glaze contains a large number of cordierite microcrystals, and the cordierite microcrystals have the characteristics of transparency, high hardness and the like, so that the wear resistance and the antiskid effect of a glaze layer can be enhanced, and thecontradiction between the transparency and the wear resistance of the glaze layer can be solved.

The invention discloses a device for regulating the size of a head of a head lamp. The device comprises ropes or belts and a lamp cap. Rotating wheels are placed on two side edges of the lamp cap, and a groove is formed on the circumference of each rotating wheel. After the ropes or the belts are wound around the grooves in the rotating wheels, two tail ends respectively penetrate through a hole of a regulator. The regulator structurally comprises a first connection part and a second connection part, wherein the second connection part can move opposite to the first connection part, the first connection part and the second connection part are respectively provided with a through hole through which the ropes or the belts can penetrate, and a spring is placed between the first connection part and the second connection part. When the first connection part is pressed down, the through hole in the first connection part and the through hole in the second through hole are aligned, and the ropes or the belts can move freely in the holes. When a hand loosens the first connection part, the first connection part is bounded, and the ropes or the belts are clamped.

The invention discloses a dynamic kinematic acquisition system for a human body bone joint. The system comprises first brackets and a second bracket which are movably connected, and a data storage device recording position data of a first plane X-ray dynamic acquisition device and a second plane X-ray dynamic acquisition device, wherein a first X-ray bulb tube and a second X-ray bulb tube used for emitting X-rays, X-ray receivers and a plurality of motional somatosensory camera shooting devices used for capturing body surface motion and position information of the targeted bone joint are arranged on the second bracket at intervals; the two X-ray bulb tubes and the X-ray receiver group can slip on an annular arm of the second bracket in a linkage manner, so that an angle between the two projection X-rays is adjusted, and the shape and the size of a detecting area are adjusted; and with the assistance of the body surface motion information of a targeted limb, in-vivo motion of the bone joint is reconstructed through registration between a pre-established three-dimensional model of the bone joint and an acquired bi-plane two-dimensional image. The system is simple in structure and low in cost, and can acquire an in-vivo motion image of the human body bone joint accurately and quickly.

The invention discloses a method and device for preparing metal powder in an electro-deposition manner, and belongs to the field of an electrochemical technology and equipment. According to the method and device, electrolyte is electrolyzed by adopting graphite felt or carbon felt as anode materials; and the form and the size of the metal powder deposited at cathodes can be adjusted by adjusting working currents. According to the method and device for preparing metal powder in an electro-deposition manner, the graphite felt or the carbon felt, which has an extremely large specific surface area, is adopted as an anode, so that the anode can obtain great working currents under the condition that the electric current density is extremely small, and phenomena of"air curtain" and electrolytic corrosion of conventional dense anode materials can be avoided; and besides, the graphite felt or the carbon felt is easy to cut and can be spliced, so that the anode is extremely convenient to make; additionally, the electric current density of the cathode is increased, so that a cathode product is changed from compact into loose, the shape of the cathode product is changed from blocks or tablets into particles or powder, and in terms of form, the cathode product is changed from big to small, and a metal powder collecting mechanism is facilitated to continuously and automatically collect cathode metal powder.

The invention discloses a liquid crystal lens, a stereo display method and a stereo display device. The stereo display method is applied to the stereo display device comprising the liquid display lens. The liquid display lens comprises a plurality of parallel first electrodes, a plurality of second electrodes which are arranged in parallel and different from the first electrodes in terms of extending direction, and liquid crystals filled between the first electrodes and the second electrodes. The method comprises the steps that at least one set of voltage distributed in the shaped of V in the preset direction or at least one set of voltage distributed in the shape of reversed V in the preset direction is exerted between the first electrodes and the second electrodes covering a three-dimensional display area, and the voltage which is distributed in the shape of V or distributed in the shape of reversed V is wholly or partially larger than the threshold voltage of the liquid crystals. Threshold voltage which is smaller than that of the liquid crystals or voltage which is larger than the saturation voltage of the liquid crystals is exerted between the first electrodes and the second electrodes covering a two-dimensional display area. The stereo display device can achieve the three-dimensional display effect and the two-dimensional display effect in a blended mode.

The invention discloses an aggregate storage bin for a dry-mixed mortar. The aggregate storage bin comprises a separator (14) arranged between adjacent chambers of the aggregate storage bin, and a discharge gate (15) which is arranged on the separator (14). The aggregate storage bin provided by the invention realizes communication and isolation among chambers by selectively opening and closing the discharge gate (15) on the separator (14) between adjacent chambers so as to adjust the size and the number of relatively independent chambers of the aggregate storage bin. When working, the aggregate storage bin is always in a state of maximum usage to meet the requirement of processing different types of mortar products so as to improve the utilization of the aggregate storage bin and increase the universality of the aggregate storage bin. Furthermore, the aggregate storage bin is easy to operate, and can improve the production efficiency of the dry-mixed mortar.

The invention discloses a modular cabinet with variable storage spaces. The modular cabinet comprises a cabinet frame, longitudinal partition plates and transverse partition plates. The longitudinal partition plates, a left side frame body and a right side frame body are arranged in parallel, the upper end and the lower end of each longitudinal partition plate are clamped in locating clamps, and each longitudinal partition plate is limited by limiting clamps on the two sides of the corresponding locating clamps; the transverse partition plates, an upper top frame body and a lower bottom frame body are arranged in parallel, the left end and the right side of each transverse partition plate are clamped in locating clamps, and each transverse partition plate is limited by limiting clamps on the two sides of the corresponding locating clamps. In the modular cabinet, the longitudinal partition plates can be horizontally moved in the cabinet frame, the transverse partition plates can be longitudinally moved between the cabinet frame and the longitudinal partition plates, positions of the storage spaces in the transverse dimension direction can be adjusted through horizontal motion, the longitudinal dimensions of the storage spaces can be adjusted through longitudinal motion, and accordingly the dimensions and the positions of the storage spaces can be conveniently adjusted so that diversified needs of practical application can be met.

The invention discloses an aluminum scrap regeneration smelting device. According to the aluminum scrap regeneration smelting device, two impellers are applied into a stirring device inside a molten aluminum holding furnace, and air supply holes are formed between the two impellers; when the upper impeller and the lower impeller rotate in the same direction, negative pressure is generated betweenthe two impellers, and gas is promoted to be blended in molten aluminum; and when the two impellers rotate reversely, bubbles are dispersed into the whole molten aluminum better. Further, the size anddispersion degree of the bubbles in the molten aluminum can be adjusted by regulating the rotating speed of a motor and the reverse rotating time of the two impellers, and accordingly, impurity elements in the molten aluminum can be better removed.

An embodiment of the invention provides a foldable display panel and display device. The display panel comprises a non-folding area and a folding area. The non-folding area comprises first pixels, first grid lines extending along a first direction and arranged along a second direction, first data lines extending along the second direction and arranged in the first direction and first grid drivingunits arranged in the second direction. The folding area comprises second pixels, second grid lines extending along the second direction and arranged in the first direction, second data lines extending along the first direction and arranged along the second direction and second grid driving units arranged along the first direction. According to the foldable display panel and display device, the grid driving units in driving arrays of the non-folding and folding areas are designed independently, the driving capability of the intermediate folding area can be improved effectively, and the displayperformance and reliability of the foldable display device are improved.

The invention discloses a porous silicon material and its preparation method. The preparation method of the porous silicon material includes: letting a transition metal salt precursor and raw material silicon undergo an in situ catalytic reaction in an organic solvent under certain temperature and pressure and the action of a mineralizing agent, and carrying out pickling and other post-treatment impurity removal processes, thus obtaining the porous silicon material. By adjusting the variety and concentration of the transition metal salt precursor, the organic solvent variety and reaction condition parameters, the pore size, distribution and porosity of the silicon material can be regulated. By means of the method provided by the invention, the porous silicon material that is difficult to obtain by the prior art can be obtained. The porous silicon material prepared by the method has the characteristics of low production cost and simple process, can be prepared in large scale, is suitable for industrial production, and has wide application prospects.

The invention relates to a carbon-free toy car with a track shaped like an Arabic number eight. The carbon-free toy car is characterized by comprising a thread rope with a hanging object, a transmission thread rope, a base plate, a sleeve, a mounting rack, a duplex wheel, a winding shaft, a winding shaft gear, a duplex winding shaft gear, supporting seats, a rear axle, rear wheels, a differential, a steering mechanism and a front wheel. According to the carbon-free toy car with the track shaped like the Arabic number eight, gravitational potential energy is utilized for driving, the gravitational potential energy obtained when a heavy object falls is converted into kinetic energy for driving the front wheel to steer and driving the rear wheels to move forwards, the carbon-free toy car is environmentally friendly, free of carbon, compact in structure, low in cost, small in dependence on a site, strong in interestingness and competitive property and beneficial for teenagers to increase knowledge and widen horizons, the ability of the teenagers for using the hands and the brains is cultivated, and the comprehensive diathesis of the teenagers is improved.

The invention relates to the technical field of safety air bags, in particular to a safety air bag used in a helmet. The safety air bag comprises air pockets, a connecting pipe, a valve body and an inflating ball, wherein an air discharging hole of the ball and an air sucking hole of the ball are formed on the inflating ball; an air inlet of a valve, an air outlet of the valve and an air bleeding hole of the valve are formed on the valve body; an air inlet of the pipe and air outlets of the pipe are formed on the connecting pipe; air inlets of the pockets are formed on the air pockets; the air discharging hole of the ball is connected with the air inlet of the valve; the air outlet of the valve is connected with the air inlet of the pipe; the air outlets of the pipe are connected with the air inlets of the pockets; an air bleeding device is arranged in the air bleeding hole of the valve; and an air sucking device is arranged in the air sucking hole of the ball. The safety air bag has the advantages of simple structure, reasonable design and low manufacturing cost.

The invention belongs to the technical field of woven bags and particularly relates to a plastic woven bag with a BOPP film for food packaging. The plastic woven bag comprises a base, a support spring, a spiral cloth bag, a clamping unit, a bottom closing unit and a lifting unit, wherein the base is in a shape of a disc, the spiral cloth bag is arranged at the upper part of the base, the support spring is arranged at the inner side of the spiral cloth bag, the support spring is used for opening the spiral cloth bag, the clamping unit is arranged between the spiral cloth bag and the support spring, the bottom closing unit is arranged between the base and the support spring, the lifting unit is arranged at the upper part of the base, and the lifting unit is used for lifting or lowering the support spring. Through the cooperation of the base, the support spring, the spiral cloth bag, the clamping unit, the bottom closing unit and the lifting unit, the height and the size of the woven bagcan be adjusted according to the amount of rice left in the woven bag, so that the rice can be conveniently and rapidly acquired.

The invention discloses an optical microscope. The optical microscope comprises a base, a light source, an object stage, object lenses and an eye lens; universal wheels are installed at the bottom ofthe base, a containing cavity is formed in the base, a support is installed on the top of one side of the base, a connecting mechanism is installed on the top of a connecting rod, the eye lens is installed on the top of the connecting mechanism, an object lens converter is installed at the bottom of the connecting mechanism, the object lenses are installed on the two sides of the bottom of the object lens converter, fine adjustment is installed on the surface of the connecting mechanism, coarse adjustment is installed on the surface of the connecting mechanism at one side of the fine adjustment, the object stage is installed on one side of the support, a condenser is installed at the bottom of the object stage, and the light source is installed on the top of the base at one side of the support. Accordingly, by arranging a series of structures, the optical microscope has the moving function, is convenient to maintain and has the adjusting effect.

The invention discloses a method for preparing a carbon nano-tube supported palladium nano-composite material by utilizing phase transfer and self-assembly technology. The method of the invention comprises the following steps: dissolving dodecyl sulfide and palladium acetate in absolute ethyl alcohol, and heating and stirring to obtain a Pd nano-particle ethanol solution; adding the prepared Pd nano-particle ethanol solution into an organic solvent containing benzyl mercaptan, extracting the ethanol through distilled water, and transferring Pd nano-particles into the organic solvent through phase transfer; and adding the organic solvent containing the Pd nano-particles into CNTs in the corresponding suspension of the organic solvent, and carrying out conventional treatment to obtain a Pd / CNTs nano-composite material. The analysis result shows that the Pd nano-particles of the material synthesized by the method are uniformly distributed on the surfaces of the CNTs.

The invention discloses an automatic control grabbing device of an industrial robot, solves the problem that an existing grabbing device of the industrial robot is poor in adaptability, and belongs to the technical field of robots. Two clamping parts of the manipulator are each provided with an air bag device and an air inflation device, each air bag device comprises a plurality of small air bags arranged at the ends of the corresponding clamping part, each small air bag is provided with an air inflation valve, and an air outlet of each air inflation device communicates with the corresponding small air bag through the corresponding air inflation valve; the image acquisition device acquires an image of a to-be-grabbed article below, and the control module determines the outer contour of the article according to the acquired image and determines the surrounding range of the clamping part of the manipulator and the inflation time of the inflation valves of the small air bags according to the outer contour and the distribution positions of the small air bags. The air bags of the clamping part of the manipulator are made to adapt to the shape of the to-be-grabbed object and can tightly clamp the to-be-grabbed object, the clamping part of the manipulator is controlled to surround the to-be-grabbed object, the inflation valves of the small air bags are controlled to be opened and closed according to the determined inflation time, and grabbing is completed.

The invention discloses an intelligent bone traction tool, traction system and traction method, belongs to the field of medical equipment, and is used for intelligently monitoring traction force. The intelligent bone traction tool comprises a traction arm mounting frame, two traction arms and two traction thimbles, wherein the two traction arms are distributed in a bilateral symmetry mode, one ends of the traction arms are connected with the traction arm mounting frame, the traction ejector pins are mounted at the other ends of the traction arms, and the traction ejector pins mounted on the two traction arms are oppositely arranged. A bone clamping area is formed between the two traction ejector pins, and each traction ejector pin is provided with a pressure sensor capable of monitoring the traction force. According to the intelligent bone traction tool, the pressure sensors capable of monitoring the traction force are arranged on the traction ejector pins, then traction force data can be monitored through the pressure sensors, the situation that the traction force is too large in change and the like can be fed back to medical staff in time so that adjustment can be performed in time, and the traction effect is guaranteed.

The invention discloses an intelligent facsimile table with a displaying function. The intelligent facsimile table comprises a table body, a rotatable display screen is mounted on the table body in anembedding manner, and a lifting locating device corresponding to the display screen is arranged inside the table body; a power device and a controller are mounted in the table body, the controller isconnected with the power supply and the display screen; the control device comprises a control chip and a WiFi module, and a calligraphy and painting electronic copybook facsimile system is loaded inthe control chip; and the control chip is connected with an external interface and a power switch arranged on the table body. The intelligent facsimile table is reasonable in design, the display screen is embedded in the table body and can rotate, so that teaching video can be watched, the angle also can be adjusted for facilitating facsimile, meanwhile, a system developed aiming at calligraphy lovers can be well matched with facsimile, various fonts are shown for selection of the lovers, therefore, the facsimile practice is facilitated, and finally, the facsimile quality is improved.

The invention discloses a quick pharmaceutical tabletting device. The quick pharmaceutical tabletting device comprises a bottom plate. One side of the top of the bottom plate is fixedly provided witha support plate, one side of the support plate is fixedly provided with a first telescopic rod, and one end of the first telescopic rod is fixedly connected with one side of a moving plate. Accordingto the quick pharmaceutical tabletting device, the sizes and thicknesses of tablets can be adjusted through the actions of a second telescopic rod and a third telescopic rod, and then a turntable drives the first connecting rod and the second connecting rod to move through the work of the motor, so that raw materials in a raw material box can be extruded into the tablets by an extruding cylinder,the moving plate can drive the extruding cylinder to move through the work of the first telescopic rod, and then the tablets extruded in the extruding cylinder are conveyed to a collecting table through the actions of the second telescopic rod and the third telescopic rod. The overall structure is relatively simple, relative convenience of the whole structure is achieved, the sizes and thicknessesof the tablets can be adjusted, and the extruding cylinder can move up and down for a plurality of times, so that the tablets can be extruded evenly, and the quality of the tablets can be improved.

The invention belongs to the technical field of preparation of stem cell gel particles. The invention discloses a stem cell gel particle generating instrument. The flow rate of feed liquid is controlled through a control module and a driving module; stem cell gel particles are formed on the basis of the control of a micro-fluidic chip; the preparation processes are integrated; rapid and large-fluxmanufacturing can be realized, the preparation speed is about one hundred million / time; the high requirements of a biological 3D printing technology in the future medical industry on stem cell particle raw materials are met; the structure design is simplified while the production efficiency is improved, and the instrument manufacturing cost is reduced. According to the stem cell gel particle generating instrument, one end of the driving module can be controlled by the control module to extend into the communicating opening of a raw material box, the feed liquid in the raw material box is pushed into a feeding channel; the speed of pushing the driving module into the feeding channel is controlled, so that the feeding speed is controlled; and the size and shape of generated stem cell gel particles can be adjusted, so that the preparation of stem cell gel particles under different cell growth conditions can be realized.

The invention belongs to the technical field of hand drawing material manufacturing related to character typesetting, and the method comprises the steps: obtaining character contents, and reading theparameters of the character contents; performing dynamic attribute setting on the character contents according to the parameters of the character contents; and combining the character contents after dynamic attribute setting with animation to generate a hand drawing material file. Therefore, the hand drawing material manufacturing method based on text typesetting and the device adopting the methodare realized; static parameters such as word sizes, fonts and sizes of the texts in the word cloud can be adjusted and the dynamic character effect generated by the characters in the materials can beadjusted; format conversion is achieved, and the animation display and editable effects are good.

The invention is suitable for the technical field of automation, and provides a machining track adjusting method and device, terminal equipment and a storage medium. The machining track adjusting method comprises the steps that a first end point of a first machining track is obtained; acquiring a first circle center of the first processing track; acquiring a second starting point of a second processing track, wherein the first processing track and the second processing track are arc tracks; determining a third circle center of the second starting point according to the first end point, the first circle center and the second starting point, so that the distance from the third circle center to the first circle center meets a circle center distance condition, and enabling the difference between the distance from the third circle center to the first end point and the distance from the third circle center to the second starting point to meet a radius deviation condition. The processing track adjusting method provided by the embodiment of the invention can ensure normal processing of the processing system.

The invention relates to a spraying gun water spot adjusting device. The spraying gun water spot adjusting device comprises an inner casing pipe installed at the end portion of a spraying gun water pipe, a dabber connected with the interior of the inner casing pipe and a shell with one end arranged on the outer wall of the inner casing pipe in a sleeved mode; the dabber and the inner casing pipe are parallel in the axial direction, and a gap is reserved between the dabber and the inner wall of the inner casing pipe; one end of the dabber is connected with the inner wall of the inner casing pipe through a dabber frame with a through hole; the other end of the dabber is a free end; the free end extends out of the inner casing pipe; a horn-shaped water dispersing device is arranged at the free end of the dabber; the diameter of the horn-shaped outer edge of the water dispersing device is greater than the diameter of the dabber; the shell and the inner casing pipe are in sliding connection; when the shell gets close to one side of the spraying gun water pipe, the water dispersing device is located outside the shell; and when the shell slides to be away from the spraying gun water pipe,the water dispersing device is completely located inside the shell, and an electric push rod device controls the shell to slide. The size and shape of water spots of a spraying gun can be electrically controlled and adjusted in a cab, the working efficiency is improved, and the working environment is improved.

The invention discloses an intelligent spraying robot for trees, and relates to a full-automatic spraying robot. The functions of Beidou positioning, visual identification and the like are utilized, and full-automatic spraying of fruit trees is achieved; solar clean energy is used for supplying energy, and the problem that a large amount of manpower and material resources are consumed when trees are whitewashed is solved; a high-precision Beidou positioning system and an internet-of-things module are used for intelligently planning a spraying range; a six-degree-of-freedom mechanical arm and visual identification are used for achieving all-directional spraying of trees, and meanwhile the information is fed back to a control end; the solar panel and the solar panel box are utilized to convert solar energy into electric energy, so that the effects of energy conservation and environmental protection are realized; the crawler belt is used for walking, so that wheel blockage caused by muddy land is avoided; the machine body is provided with an infrared sensor and an ultrasonic sensor, so that the functions of automatic tracking and automatic obstacle avoidance are realized. The device can get rid of a lot of dependence of whitewashing on manpower and material resources, and can utilize clean energy such as solar energy to achieve the purposes of energy conservation and environmental protection.

Disclosed is an ultra-large-caliber stray light testing light source and a control method thereof. The ultra-large-caliber stray light testing light source is realized through a truss type curved surface support, a light source and a control system. The truss type curved surface support is integrally presented as a spherical or secondary curved surface shape; a transverse and transverse network isformed by adopting a truss type structure, and a universal adjusting device is placed on each network node. Two light sources are placed on each universal adjusting device, wherein one of the light sources is a parallel light source, and the other is a scattered light source with a certain scattering angle. When a collimating light source is used, the emergent light of all the light sources formsan approximately parallel light beam; when a scattered light source is used, the emergent light of all the light sources forms an approximate Lamb light source. When the stray light test is carried out, the control system can control each universal adjusting device, and the light beams with different emergent angles can be adjusted; the control system can control the on and off and the intensityof each light source at the same time, so that the size and the intensity of the light beams can be adjusted. The novel stray light testing light source is small in scale and convenient to machine andmanufacture, can be applied to stray light testing of an optical system, and is particularly suitable for ultra-large-caliber stray light testing.