29results about How to "Clear vision" patented technology

The invention belongs to the technical field of image restoration and computer vision, and particularly relates to a multi-mode face restoration and expression recognition system and method based on semantic guidance of a facial action unit. According to the system, multi-scale features are extracted through visual coding, and an AU activation probability is detected by using a graph neural network; the semantic conversion module converts the numerical probability into an interpretable biomechanical structured text; the multi-modal reasoning module fuses vision and text information, introduces the common sense reasoning ability of a multi-modal large language model, and improves the student network performance through knowledge distillation; and finally, the conditional generation module realizes image restoration by taking the semantic features as guidance. The facial action unit is used as a biomechanical medium, the multi-modal reasoning ability is converted into restoration constraint, the defects that in the prior art, restoration of physiology is distorted, recognition depends on image quality, and two tasks are isolated are overcome, collaborative enhancement of face restoration and expression recognition is achieved, and it is ensured that the restoration result is clear in vision and conforms to the physiological law of facial muscles.

The invention relates to the technical field of biopsy picking devices, and particularly discloses a gastrointestinal endoscope biopsy picking device which comprises a flexible outer tube. The fixing base is fixedly connected with the end part of the flexible outer pipe; the number of the clamp flaps is two, and meshing teeth are arranged on the sides, close to each other, of the two clamp flaps; the opening and closing mechanism penetrates through the flexible outer tube and is connected with the two clamp flaps; according to the gastrointestinal endoscope biopsy extraction device, the expansion mechanism expands through the trigger type air bag, so that the root of a deep plica is expanded outwards, a dead angle area which cannot be expanded through conventional air injection is fully exposed, a doctor does not need to manually control an endoscope to push the plica or adjust the angle, semi-blind operation is not needed, missed diagnosis of a hidden focus is avoided, and the operation efficiency is improved. After the plica is unfolded, the clamp flaps can be vertically attached to a focus mucous membrane, the staggered design of the meshing teeth ensures that a tissue sample is firmly fixed, the focus is automatically exposed through the expansion mechanism, the endoscope view is clear, the operation process is simplified, and the sampling failure rate is reduced.

The utility model belongs to the technical field of roadway dust removal, and relates to an air flow purification device of a fully-mechanized face air return crossheading, which comprises a frame type component, a lifting component, a lower rotating component, an upper rotating component and a spraying component, the frame type component is used for allowing an operation vehicle to pass through, and the lifting components are arranged on the two sides of the frame type component and used for achieving lifting of an upper structure in the frame type component; a spraying component is arranged in the middle of the upper structure of the frame type component and used for treating dust in an area where a vehicle passes through. The rotating lower part is hinged with one side of the lower structure of the frame type part, and the spraying part is arranged at the upper part of the rotating lower part; the rotating upper part is hinged to the side, close to the rotating lower part, of the upper structure in the frame type part, and a dust catching net is arranged between the rotating upper part and the frame type part. Sufficient passing space is provided for vehicles, obstruction of a traditional dust catching net to traffic is avoided, different roadway heights and environment conditions can be flexibly adapted, and the stability of the treatment effect is ensured.

The utility model relates to the technical field of optical lenses, in particular to a miniature dot matrix contrast-reducing lens, which comprises a lens, the lens comprises a central optical area and a miniature dot matrix area, the miniature dot matrix area comprises two dot matrix structures, namely a large dot matrix with the diameter of 0.18 mm and a small dot matrix with the diameter of 20-30 microns, the number ratio of the large dot matrix to the small dot matrix is 1: 3-1: 8, and the number ratio of the large dot matrix to the small dot matrix is 1: 3-1: 8. The covering density of the dot matrix areas is 10-45%, the dot matrix spacing is 0.2-0.65 mm, the depth of the dot matrix is 2-8 microns, the edge of the dot matrix is provided with a smooth transition area of 0.05-0.1 mm, the lens further comprises micro-lens areas, and the micro-dot matrix areas and the micro-lens areas are alternately distributed. The central optical area of the lens is not covered by the dot matrix, so that clear view is guaranteed; the contrast of the dot matrix area is accurately regulated and controlled, full-view blurring is avoided, micro-lens defocusing and dot matrix contrast reduction are combined, eye axis growth is doubly inhibited, dot matrix size and interval optimization is achieved, and glare and visual interference are reduced.

The application relates to the technical field of spent fuel electrolytic reduction, and provides an electrolysis device, which comprises an operation chamber, a reaction container, an electrode assembly, a cooling device, a purification circulating device and an auxiliary device, the operation chamber is formed with an operation cavity and a visual window; the reaction container comprises a body and a cover, the body is formed with a reaction cavity and a mounting port, the reaction cavity is used for placing a molten salt electrolyte, the cover is arranged at the mounting port, and the part of the body, where the cover is arranged, is arranged in the operation cavity; the electrode assembly comprises an anode part and a cathode part, the anode part is used for placing a reducing agent, and the cathode part is used for placing oxide spent fuel; the cooling device is arranged at the connection between the body and the operation chamber and is located outside the operation cavity; the purification circulating device is communicated with the reaction cavity and is used for removing impurities from the molten salt electrolyte; and the auxiliary device comprises a heating assembly and a trapping assembly, the trapping assembly is used for collecting gaseous molten salt electrolyte, and the heating assembly is used for heating the reaction cavity. The electrolysis device provided by the application can safely treat oxide spent fuel through multiple passive safety designs.

The utility model discloses a ureteral flexible mirror belongs to medical instrument technical field, including handle shell, one end of handle shell is rotatively connected with joint, the outside fixed connection of joint has mirror body sleeve, the other end fixed connection of handle shell has first channel pipe, the end of first channel pipe is communicated with first sheath pipe channel, first sheath pipe channel sets up inside handle shell, the inside fixed connection of handle shell has connecting block, and one end of first sheath pipe channel is inserted in the inside of connecting block, the utility model discloses a first channel pipe and second channel pipe are set up, better satisfy clinical treatment demand, when perfusion physiological saline maintains clear vision and operation space, another channel carries out operation, guarantees operation visual field clear, avoids the tissue damage because of visual field fuzzy, improves the operation convenience, solved the single problem of existing ureteral flexible mirror working channel.

This utility model relates to the field of automotive window tinting tools, specifically an auxiliary tool for automotive window tinting with positioning and supplemental lighting functions. It includes an outer moving part and an inner moving part. The outer moving part is located on the outer side of the automotive window glass, and the inner moving part is located on the inner side. The outer and inner moving parts are magnetically attracted to each other across the window glass. A light guide plate is detachably installed on one side of the inner moving part, and a light source is installed inside the inner moving part near the light guide plate. The light from the light source is guided by the light guide plate to illuminate the edge of the window. In this auxiliary tool for automotive window tinting with positioning and supplemental lighting functions, the outer and inner moving parts cooperate with each other through the window glass via magnetic attraction, enabling quick and accurate positioning, cutting, and application of the window tinting film. Compared to traditional positioning methods that rely on experience and simple measuring tools, this structure effectively avoids problems such as film misalignment.

The utility model relates to the field of medical instruments, and discloses a visual auxiliary aspirator and a surgical robot system.The aspirator comprises a suction tube, an imaging assembly, a handle and an auxiliary displayer, the suction tube comprises a suction channel arranged in the axial direction in a penetrating mode, and the imaging assembly and the handle are arranged at the far end and the near end of the suction tube respectively; the handle comprises a suction connector used for being connected with a negative pressure device, the suction channel penetrates through the handle and is communicated with the suction connector, and the auxiliary displayer is movably arranged on the handle, is in communication connection with the imaging assembly and is used for displaying auxiliary images collected by the imaging assembly. By arranging the imaging assembly and the auxiliary display on the aspirator, an assistant can observe an auxiliary image displayed by the auxiliary display and can see an operation view for auxiliary operation without lowering the head in a narrow operation view space, so that the operation is easier, and the aspirator can be accurately matched with a surgeon; and operation tool pollution caused by assistant head lowering can be avoided.

The utility model relates to the technical field of fire-fighting equipment, in particular to a fire-fighting lance with hydraulic lighting, which comprises a lance body, the lance body comprises a water outlet pipe, a lighting device arranged on one side of the water outlet pipe and a hydroelectric generation device arranged between the water outlet pipe and the lighting device, and the lighting device is electrically connected with the hydroelectric generation device. The lighting device is rotatably arranged on the outer side of the water outlet pipe; the lighting device is rotatably arranged on one side of the water outlet pipe, namely, the lighting device is arranged in the fire-fighting lance, so that the burden of a firefighter is relieved, and the firefighter can manually adjust the lighting direction of the lighting device, so that the firefighter can better observe a fire scene and a fire extinguishing condition; according to the fire-fighting lance, the hydraulic power generation device is arranged in the fire-fighting lance, the hydraulic power generation device can be triggered by impact force of water flow to convert mechanical energy of the water flow into electric energy when water flows out, stable power supply is provided for the lighting device, water resources can be efficiently utilized, the lighting effect is improved, and the safety of the lighting device is further improved.

This invention relates to an embedded, transparent protective structure resistant to repeated impacts. It comprises a transparent ceramic curved armor plate, a transparent fiber-reinforced skeleton, a polycarbonate curved backplate, an epoxy resin coating, and an STF shear-thickening coating. The polycarbonate curved backplate has a central groove with a concave bottom. Each polygonal unit of the transparent fiber-reinforced skeleton contains a transparent ceramic curved armor plate. The gaps between the transparent ceramic curved armor plates and the transparent fiber-reinforced skeleton are filled with the STF shear-thickening coating. The bottom of the overall structure formed by the transparent ceramic curved armor plates, the transparent fiber-reinforced skeleton, and the STF shear-thickening coating is a convex curved surface, and the upper part of the overall structure is also a convex curved surface coated with an epoxy resin coating. This invention uses segmented, interlocking fibers in the armor plates to inhibit the propagation of crack damage, ensuring that the protective capabilities and visibility of other areas are not affected after an impact. Combined with the function of the curved structure, the overall structure is embedded in the curved backplate, forming an embedded structure.

The utility model relates to a multi-gear support hinge locating block, including top, spectrum frame and support hinge, top's upper end face front part rotationally installed with spectrum frame, spectrum frame upper end rear part rotationally installed with support hinge, top upper end face middle part embedded installation has the locating block, locating block upper end face upper and lower front and rear side by side is provided with not less than three locating recesses, support hinge lower extreme can insert into locating recess, top's upper end face front end place installs the spectrum frame crosspiece that presents transverse arrangement. The utility model is suitable for the person of not high height to play the music to carry out the spectrum, improves the comfortable degree when looking the spectrum and the characteristics such as the convenient and fast adjustment music score placement angle.

The utility model discloses a side chip removal structure of an electric chain saw, which comprises a main machine internally provided with an engine or a motor, a guide plate mounted on one side of the main machine, a saw chain mounted on the guide plate and capable of being driven by the engine or the motor to work, and a side cover mounted on one side of the main machine and covering partial guide plate and the saw chain, the side of the chip removal opening is opened, a rear blocking part and a bottom blocking part which are connected are arranged on one side of the side cover or the main machine, an included angle smaller than 180 degrees is formed between the rear blocking part and the bottom blocking part, the rear blocking part and the bottom blocking part are arranged on the side cover in a protruding mode, and the chip removal opening is located in the included angle. Compared with the prior art, the wood chip removing device has the advantages that the protruding rear blocking part and the protruding bottom blocking part are arranged on one side of the side cover or one side of the main machine, and the chip removing opening is formed in the inner side, smaller than 180 degrees, between the rear blocking part and the bottom blocking part, so that wood chips falling from the position between the rear blocking part and the bottom blocking part can effectively deviate from the hands or the faces of operators; and the influence on the sight line and the working efficiency of falling wood chips is reduced, and the use experience of the electric chain saw is improved.

This utility model discloses an S-shaped defrosting and defogging duct structure for vehicles, comprising: a central duct, a left-side duct, and a right-side duct. The central duct has an air inlet and an air outlet; the air inlet is for intake, and the air outlet is for exhausting air towards the windshield. The left-side and right-side ducts are respectively installed on opposite sides of the central duct and connected to it to exhaust air towards the left and right windows, respectively. A left air chamber and a right air chamber are formed within the central duct. A left diverter assembly is formed within the left air chamber to create multiple left air ducts; a right diverter assembly is formed within the right air chamber to create multiple right air ducts. The multiple left and right air ducts allow the airflow towards the windshield to exit from multiple different directions, expanding the defrosting and defogging area of ​​the windshield and improving airflow utilization. Simultaneously, it prevents mutual interference of airflow within the central duct during exhaust, ensuring orderly airflow onto the windshield and improving defrosting and defogging efficiency.

The utility model discloses a high beam light guide piece, installation structure and car lamp, including light guide piece body, light guide piece body is made of silica gel material integral injection moulding, light guide piece body includes the light entrance portion that is provided at one end, light guide piece body other end is provided with the light exit portion, light guide portion is provided between light entrance portion and light exit portion, light guide portion is columnar silica gel rod, the silica gel rod is cylindrical silica gel rod, the silica gel rod is cylindrical silica gel rod, the silica gel rod is cylindrical silica gel rod, and the silica gel rod is cylindrical silica gel rod. The light inlet portion comprises a funnel-shaped cavity located at one end of the light guide portion, the cavity bottom of the funnel-shaped cavity is fixedly connected with a protruding light inlet protrusion, the light guide piece body of the high-distance light guide piece is integrally formed by the silica gel material in an injection molding mode, the silica gel material has good flexibility and formability, the light guide piece has a proper refractive index, and therefore the light guide piece body is not prone to falling off. Light rays can be effectively guided to be transmitted inside, light loss is reduced, yellowing or aging is avoided, meanwhile, the silica gel can be rapidly made into a light guide piece of a proper size through injection molding, ejection and other forming methods, large-scale production can be achieved, efficiency is improved, and cost is reduced.

The utility model provides a kind of color master batch vacuum drying equipment, belong to color master batch production technical field, to solve the problem that lack of intuitive monitoring and abnormal situation's timely processing ability to color master batch material state in the drying process of existing double-cone rotary vacuum dryer, including support, observation window, pass through pipe orifice, real-time observation component and convenient sampling component;The observation window is set inside before rotary vessel;The pass through pipe orifice is fixedly connected at rotary vessel bottom;The real-time observation component is set behind observation window;The convenient sampling component is set inside pass through pipe orifice.The utility model sets up observation window before rotary vessel and configures real-time observation component, realizes drying state real-time clear monitoring, through the convenient sampling component in pipe orifice, without stopping machine can be sampled under vacuum environment quickly, reduce the material quality fluctuation and production capacity waste caused by observation lag or sampling shutdown.

The utility model provides a kind of beam shaping lens, sequentially arrange including: first lens along optical axis direction from light source to object side surface: the first light source surface of first lens is concave, and the first object side surface of first lens is convex;Second lens, the first light source surface of second lens is plane, and the first object side surface of second lens is convex;Third lens, the first light source surface and the first object side surface of third lens are all plane;Fourth lens, the first light source surface of fourth lens is convex, and the first object side surface of fourth lens is plane;Wherein, first lens is high refractive lens.The beam shaping lens provided by the utility model is placed one by one by using multiple groups of lenses according to appropriate spacing, so that light is refracted to object side surface by first lens, second lens, third lens and fourth lens in turn, the angle of light is expanded, and the uniformity of illumination after shaping is improved, so that the field of view is more clear.

The invention discloses an automobile, an electronic rearview mirror with a cleaning function and a control method of the electronic rearview mirror, and relates to the technical field of electronic rearview mirrors. The control method comprises the following steps: acquiring an image frame shot by the electronic rearview mirror and vehicle driving state data; and judging the current illumination scene according to the illumination condition and the gain parameter, pre-judging a tunnel or basement entrance, and generating a scene flag bit. And carrying out region-of-interest identification processing and brightness normalization processing on the image frame. And calculating a multi-dimensional characteristic index based on the preprocessed data and the vehicle driving state data. And performing interference locking judgment. If the vehicle is not locked, the fogging state or the dirty state is distinguished according to the scene flag bit and the multi-dimensional feature index, and a control instruction is generated in combination with the vehicle driving state. And executing a corresponding heating demisting or blowing cleaning action according to the control instruction. After the action is executed, the image is collected again, the image quality score and improvement amount are calculated, whether the action is stopped or not is determined according to the acceptance check result, and the execution dosage is adjusted or the reference parameters are updated.

The utility model discloses an explosion-proof box for battery test protection, which comprises a battery test explosion-proof box body and a front turnover door, and a transparent toughened glass window is arranged in the door. An exhaust fan body is arranged on the side face of the box body, a fan assembly in the exhaust fan body is connected with a plug-in filter box containing a side face intercepting filter screen and middle activated carbon, gas in the box can be exhausted after being extracted and filtered after testing is completed, influences of peculiar smell and smoke dust on the environment and personnel are reduced, and the working progress is accelerated. A cleaning cotton wiper is arranged on the inner side face of the glass window and controlled through a movable strip block, a longitudinal connecting guide column, a transverse connecting guide column and a connecting metal wire rope, and smoke dust can be wiped to facilitate observation. The box body is provided with an operating console, a state display lamp, a bottom universal wheel body, a side-mounted sealing plate, a breathable screen frame and the like. The explosion-proof box has various functions, is convenient to operate, can effectively guarantee the safety of battery testing, improves the working efficiency and observation convenience, and has good practicability and popularization value.

The utility model relates to a camera protection cover used for image acquisition, a protection cover body comprises a cover ring and a transparent lens arranged on one side of the cover ring, a transparent cover plate is installed on the other side of the cover ring so as to form a cavity in the protection cover body, the cavity is filled with transparent liquid, one side, provided with the transparent cover plate, of the cover ring is coated with fixing glue, and the fixing glue is filled with transparent liquid. The protective cover body is mounted on the automobile camera; the automobile camera is protected through the transparent lens, and the cavity is filled with the transparent liquid, so that the cleanliness of the transparent lens is improved, the visual field of the automobile camera is clearer, and the imaging quality is prevented from being influenced.

The utility model provides burr sand blasting and collecting equipment for aluminum alloy workpieces, belongs to the technical field of sand blasting equipment, and aims to solve the problems that a large amount of dust generated during sand blasting treatment of existing workpieces in a sand blasting cabinet can be attached to the inner surface of an observation window and is troublesome to wipe and clean, and the burr sand blasting and collecting equipment comprises a sand blasting cabinet main body, the two guide rails are dispersedly and fixedly connected to the top of the sand blasting cabinet main body; the left end of the transmission rack is fixedly connected to the bottom of the connecting rod; the clear watching assembly is arranged at the top of the sand blasting cabinet main body; and the sand removing assembly is arranged in the sand blasting cabinet main body. The wiping piece can be driven to clean the observation window only by pulling the plugging piece, the clear view field is ensured, the plugging piece moves to be matched with the sand removing assembly, the placing mesh and the aluminum alloy workpiece vibrate up and down, blasted sand attached to the surface is shaken off to the collecting hopper, and follow-up collection is facilitated.

This application proposes a pull-out patch panel and cabinet. The pull-out patch panel includes a housing, a guide rail structure, and a tray assembly. The housing has a wiring cavity. The guide rail structure is located inside the wiring cavity and connected to the inner wall of the wiring cavity. The guide rail structure has a guide groove extending along a first direction, and the groove wall of the guide groove has a snap-fit ​​groove. The tray assembly is located inside the wiring cavity and includes a multi-layered tray structure arranged in a stacked manner. The tray structure portion passes through the guide groove, and each tray structure has a mounting position. A module box is installed in the mounting position. The side of the tray structure facing the snap-fit ​​groove has a snap-fit ​​part, which is placed in the snap-fit ​​groove, and a part of the snap-fit ​​part is exposed outside the guide groove. The snap-fit ​​part is configured to be able to elastically deform under drive to avoid the guide rail structure, so that the tray structure can pass into or out of the guide rail structure along the first direction. The pull-out patch panel and cabinet of this application can effectively simplify cabling while increasing the capacity of fiber optic connectors.

The invention discloses an unmanned aerial vehicle with a camera assembly convenient to replace, and relates to the technical field of unmanned aerial vehicles, and the unmanned aerial vehicle comprises foot stools which are installed on the two sides of the lower portion of an unmanned aerial vehicle body and used for supporting. According to the unmanned aerial vehicle with the camera assembly convenient to replace, a bolt dismounting opening in the bottom faces the front of the unmanned aerial vehicle body through an electric push rod and a bearing frame, an operator can make direct contact with the dismounting opening from the front face conveniently, the sight of the operator is clearer through the position, the operation space is more sufficient, and the operator does not need to wind around other angles for dismounting; and meanwhile, the auxiliary mechanism and the traction mechanism operate at the same time, the supporting wings are adjusted to be in a downwards-inclined state from the horizontal position, the two sides of the unmanned aerial vehicle body are supported, the overturning risk caused by the unstable gravity center in the disassembling process is prevented, and the safety of the unmanned aerial vehicle is improved. Workers can conveniently and quickly disassemble and replace the camera assembly, and the replacement time is shortened.

The utility model relates to the technical field of paraffin section, concretely is a kind of paraffin section machine, including section machine main body, the front of section machine main body is provided with processing mechanism, the both sides of section machine main body top are fixedly installed with longitudinal guide rail, the inside rotation of longitudinal guide rail is installed with threaded rod, the outer wall of threaded rod is equipped with adjusting block. This kind of paraffin section machine, by the cooperation of section machine main body, processing mechanism, longitudinal guide rail, threaded rod, adjusting block, vertical rod, transverse plate, electric telescopic rod, visual protective cover, fixing bracket, transmission mechanism and servo motor, section machine main body is not used, visual protective cover can be automatically adjusted to the outside of processing mechanism, it is sealed and covered, effectively avoid external dust impurity interference, play good protection function, guarantee section machine stable operation.

The utility model discloses a multi-angle adjustable electromechanical maintenance platform, which belongs to the field of electromechanical maintenance and comprises a workbench, the upper surface of the workbench is fixedly connected with a fixing frame, an inner cavity of the fixing frame is slidably connected with a sliding frame, and an adjusting mechanism is arranged above the sliding frame; the adjusting mechanism comprises a rack, mounting side plates are fixedly connected to the two sides of the upper surface of the fixing frame, a rotating rod is arranged above the fixing frame, the outer ring of the rotating rod is sleeved with a half gear, and the half gear is meshed with the rack through clamping teeth; through the cooperative use of the devices, the operation comfort and the working efficiency are improved, particularly when the maintenance task of precise electronic elements or complex mechanical structures is carried out, it can be ensured that maintenance personnel obtain a clear visual field and a sufficient operation space, the misoperation risk caused by sight blocking or operation space limitation is avoided, and the service life of the maintenance personnel is prolonged. And therefore, the maintenance quality and safety are improved.

The invention discloses an intelligent visual sorting device for solid waste treatment, and relates to the technical field of sorting devices. The device comprises a conveying structure which comprises a rack and a conveying belt located in the rack; a material homogenizing structure, comprising a material conveying box, a transfer bin communicating with the upper end of the material conveying box, a feeding hopper communicating with the upper end of a loading bin, a second motor located at the front end of the transfer bin, a first motor located at the front end of the material conveying box, a beating roller located at the output end of the first motor, a dispersing block on the outer wall of the beating roller, a rotating shaft at the output end of the second motor, a material distributing plate on the outer wall of the rotating shaft and a mounting shaft in a support. A rotating arm at one end of the mounting shaft rotates a shifting block on one side of the lower end; an intelligent visual sorting mechanism; and a sorting structure. By arranging the multi-stage material uniformizing structure, the multi-dimensional intelligent vision mechanism and the differentiated sorting structure, uniform dispersion, accurate recognition and efficient sorting of solid waste are achieved, stacking shielding and cross contamination are avoided, the resource recovery rate is increased, and the environmental protection risk and labor intensity are reduced.

The utility model relates to the technical field of automobile parts, especially a precision shape correcting mechanism of automobile brake shoe assembly, including base, be provided with the shape correcting mechanism on the base and be used for brake shoe shape correction, shape correcting mechanism includes: main component, including fixed in the four corners of base top riser, four risers between sliding mounting have movable plate, both sides of movable plate front end all are fixed with shaft lug, the shaft lug is hinged with connecting rod, and both sides of base top front end all are fixed with riser; protection subassembly, including the support of hinge connection in connecting rod lower extreme, and support upper extreme with riser upper extreme hinge connection, both sides support between be provided with baffle; realize protection automatic opening and closing through linkage, with shape correcting procedure synchronous action, baffle automatic in place form comprehensive protection barrier, reliable blocking operation splatter, operation end automatic reset convenient operation, realize the perfect combination of safety protection and efficient operation.

The application discloses a kind of high transparent photochromic polyester film and preparation method thereof, the film is composed of photochromic polyester layer, the photochromic polyester layer contains in-situ polymerized, surface-modified inorganic photochromic nanoparticles, the haze of the film is ≤3%, color change occurs within 5 seconds under sunlight irradiation.The high transparent photochromic polyester film provided by the application has high transparency, fast color change, excellent stability and green environmental protection, etc., can meet the stringent requirements of intelligent window film, high-end anti-counterfeiting, optical devices and other fields, and has extremely high application value and market prospect.

The utility model relates to the technical field of medical instruments, and discloses a water exchange device for digestive endoscopic surgery, which comprises an endoscope, a water storage bottle, an aspirator bottle and a water pump, the middle position of the inner cavity of the water storage bottle is fixedly connected with a partition plate, and the partition plate divides the water storage bottle into a turbid water bottle and a clean water bottle. The top of the turbid water bottle is fixedly communicated with a suction leather hose, the other end of the suction leather hose is fixedly connected with two rubber rings, a side hole is formed in the end, away from the turbid water bottle, of the suction leather hose and located between the two rubber rings, and the top of the clean water bottle is in threaded connection with a screwing cover. A water supply pipe fixedly penetrates through the top of the screwing cover, the water outlet end of the water pump fixedly communicates with a water conveying pipe, the top end of the aspirator bottle is in threaded connection with a bottle cap, and the top of the bottle cap fixedly communicates with a first water suction pipe and a second water suction pipe through a three-way pipe. According to the utility model, exchange between clean water and turbid water can be realized, and clear view can be ensured.

The invention relates to the technical field of green husk walnut picking, and discloses an intelligent air suction type walnut picking device based on machine vision, the intelligent air suction type walnut picking device comprises a mobile chassis, the top of the mobile chassis is provided with a positioning mechanism used for positioning and picking green husk walnuts on the ground, and the top of the mobile chassis is fixedly connected with a device shell. A motor of the picking mechanism is started to drive a cyclone separator to rotate at a high speed to enable a collecting pipeline to generate vacuum negative pressure, a visual camera of the positioning mechanism is used for positioning green-husk walnuts, so that the positioning mechanism moves the collecting pipeline to the tops of the green-husk walnuts, and the green-husk walnuts can be picked conveniently; dust is adsorbed by the filtering mechanism, so that dust-free operation in the walnut collecting process is ensured, the visual field of the visual camera is not influenced, the range of a picked walnut garden is determined through the intelligent navigation system, walnut trees are identified by the positioning camera, avoidance and path planning are performed, and autonomous walking of the equipment in the walnut garden is realized.