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79results about How to "Achieve irradiation" patented technology

Automobile lamp LED high-low beam integrated PES unit with ADB function

The invention relates to an automobile lamp LED high-low beam integrated PES unit with an ADB function. A high-beam LED circuit board small assembly, a low-beam LED circuit board small assembly and a reflector are arranged in an optical module. A condenser is fixedly arranged right in front of the high-beam LED circuit board small assembly. When the low-beam LED circuit board small assembly works, light rays are reflected to a second focus by the reflector; most light rays are directly emitted into a lens, and small part of the light rays are refracted to enter the condenser and are then subjected to total reflection and refraction again on the front end face and the lower surface of the condenser correspondingly, so that the small part of the light rays do not enter the lens; thus a shading function is achieved, and in this way, the light emitted from the lens can form a low beam shape with a cut-off line. When the high-beam LED circuit board small assembly works, after being focused at the second focus by the condenser, part of light rays are directly emitted and then emitted into the lens; part of the light rays are subjected to total reflection when meeting the upper surface of the condenser, are emitted from the front end face of the condenser, and then emitted out after being emitted into the lens; thus a high-beam function is achieved.
Owner:HASCO VISION TECHNOLOGY CO LTD

Lens system suitable for LED road lamp

ActiveCN101487579AConvergence requirements are lowCentral light intensity value is smallMechanical apparatusPoint-like light sourceIlluminanceCurve shape
The invention relates to a lens system which is applicable to an LED street lamp and is matched with an LED illuminant for use to form light distribution with multiple Light beam angles and light intensities. A plane of light incidence of a lens in the system being close to the LED illuminant is a compound curved surface of an aspherical concave surface, and a light-emitting surface is a compound curved surface of an aspherical convex surface; the shapes of the incident surface and the emitting surface are determined by the luminescent properties of the LED illuminant and the requirement of the emergent ray; after the light ray emitted by the LED illuminant is refracted by the lens, facula formed on the irradiation surface within a certain distance has the characteristics of being comparatively long in the distance covered by the facula along one direction being vertical to the axes of the LED illuminant, being comparatively shorter in the distance covered by the facula along another direction being vertical to the direction, being symmetrical in the shapes of the faculas correspondingly to the axes of the LED illuminant, and taking on the distribution which is similar to rectangle. Similar plane isolux distribution curve shape as well as completely different maximum light intensity values of the light beam and half peak value light intensity light beam wrap angles can be obtained by the LED illuminant through different lenses, so that the lens system is especially suitable for the LED light fittings having the requirement of rectangle illumination scope.
Owner:NINGBO LIAOYUAN IND

Degradable foaming material and preparation method thereof

The invention relates to the technical field of foaming materials, and discloses a degradable foaming material and a preparation method thereof. The degradable foaming material is prepared from, by mass, 30-80 parts of poly(butylene adipate-co-terephthalate); 10-40 parts of polylactic acid; 10-40 parts of modified starch; 1-2 parts of a chain extender; 0.1-2 parts of a plasticizer; 1-4 parts of an assistant crosslinker; 0.1-1.5 parts of an antioxidant; 0.1-1.5 parts of a lubricant and 3-20 parts of a foaming agent. By blending and modifying PLA through PBAT, on one hand, the melting point of PLA can be remarkably reduced, the melt extrusion temperature during subsequent coiled material extrusion is further reduced, decomposition of a chemical foaming agent is inhibited, and decomposition of the foaming agent is completely controlled in the foaming stage of a high-temperature foaming furnace; and on the other hand, the advantages and disadvantages of PBAT and PLA materials are combined, and the degradable foaming material with excellent ductility, tensile strength and comprehensive performance is obtained.
Owner:ZHEJIANG UNIV OF TECH

Modularized scanning probe microscope

The present invention relates to a modular scanning probe microscope combined with inverted fluorescence microscope. It is formed from five modules, in which the first module is inverted fluorescence microscope, second module is three-jaw approaching device, third module is scanning head, fourth module includes transparent sample table and X, Y and Z three-dimensional scanner and fifth module is laser microscopic extension module. Said invention also provides its working principle and concrete operation method.
Owner:SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI

Laser packaging method and equipment

A laser packaging method includes the steps of generating dotted laser beams, shaping the dotted laser beams into linear laser beams, arranging a mask plate on a packaging material, forming a light transmitting zone of which the shape is matched with the shape of the packaging material on the mask plate, aligning the mask plate to the light transmitting zone and the packaging material, and utilizing the linear laser beams to scan the mask plate. By the adoption of the laser packaging method, after the mask plate and sealing patterns are aligned, the linear laser beams scan and irradiate the mask plate, irradiation and hot melting of the whole sealing patterns can be achieved, and the packaging efficiency is improved. After the mask plate and sealing patterns are aligned, laser can accurately irradiate a packaging zone, and the requirement for aligning accuracy of the laser beams is reduced.
Owner:SHANGHAI UNIV

Portable mobile lamp

A portable mobile lamp comprises an electrical cabinet, a lifting rod, two L-shaped supports and two lamp holders, wherein a long and narrow first accommodating groove and a second accommodating groove which is located in one end of the first accommodating groove and communicated with the first accommodating groove are formed in the top of the electrical cabinet, and a positioning sleeve is arranged on the side wall of the electrical cabinet; a fixing ring and a fixing seat are arranged at one end of the lifting rod, and one end part of the lifting rod glidingly penetrates through the fixing ring and is accommodated in the positioning sleeve; the fixing seat and the fixing ring are rotationally connected and fixed in the second accommodating groove; one end of each L-shaped support is rotationally connected with the other end of the lifting rod; and the two lamp holders are rotationally connected with the other ends of the two L-shaped supports respectively. The lifting rod is lifted and separated from the positioning sleeve, so that the fixing ring can freely rotate relative to the fixing seat until the lifting rod is mounted in the first accommodating groove; and the portable mobile lamp can realize irradiation in multiple directions, at multiple angles and in different heights and has the functions of easiness in retraction, small size and portability.
Owner:OCEANKING DONGGUAN LIGHTING TECH +2

Light curing 3D printing device and printing method

The invention discloses a light curing 3D printing device and printing method using light curing materials as raw materials. The printing device comprises a container groove, a developing module, a working bearing table, a screw rod, a lifting machine and a light source; the developing module is arranged at the bottom of the container groove, and the developing module and the container groove are fixedly arranged together. The printing method comprises the following steps that firstly, liquid-state photosensitive resin is injected into the container groove; secondly, a shape required to be printed is input to the developing module through a computer; thirdly, according to the thickness required to be printed, the position of the working bearing table is adjusted through a screw rod; fourthly, light emitted by the light source passes through the developing module, at the moment, the developing module carries out local blocking on the light projected by the light source, the unblocked photosensitive resin is in contact with the light, and the resin is converted into the solid state from the liquid state; fifthly, the screw rod on the working bearing table obtains power through a lifting motor to move upwards; and sixthly, the step two to the step four are repeated until a printing layer face is manufactured.
Owner:李家萌 +2

UV delay-cured conductive silver adhesive and preparation method thereof

The invention relates to UV delay-cured conductive silver adhesive and a preparation method thereof. Assembly of components can be performed after irradiation of UV light is conducted, and the conductive silver adhesive can be self-cured after assembly is conducted. The UV delay-cured conductive silver adhesive mainly comprises cycloaliphatic epoxy resin, a toughening agent, epoxy reactive diluent, cationic photoinitiator, self-made photosensitizer, a coupling agent, dispersant and conductive particles, and the preparation method comprises the steps of: mixing the materials, and performing stirring, grinding and dispersing so as to obtain the UV delay-cured conductive silver adhesive. Compared with an existing technology, the curing rate of the conductive adhesive can be delayed by 40-50 minutes, and the obtain conductive adhesive after curing has good adhesion, solvent resistance, low electrical resistivity and good adhesion to metal materials; the conduction adhesive is mainly applied to flexible solar thin film, and is a new electronic connection material.
Owner:YANTAI DARBOND TECH

Rectal suppository LED (Light Emitting Diode) light source for photodynamic therapy of rectal cancers

The invention discloses a rectal suppository irradiation light source for photodynamic therapy of rectal cancers, and belongs to a device for photodynamic therapy. A 635nm LED (Light Emitting Diode) light source, a lithium battery, a constant current control circuit and relevant circuits are packaged in a bullet-type rectal suppository having the length of about 3cm, the diameter of about 1cm and the front end slightly acute, wherein the packaging material is transparent epoxy resin adhesive. By such design, the overall light source can be placed in the rectum of a patient for photodynamic therapy, and is suitable for long-time and low-energy continuous irradiation. The photodynamic therapy process of rectal cancers is simplified, the compliance of patients is improved, the labor intensity of medical staffs is relieved, the cost of photodynamic therapy is reduced, the limitation of the photodynamic therapy space is broken, and patients can accept the therapy in clinics or at home. The light source involves in a scientific research experiment method as clinical reference data of rectal cancers.
Owner:INST OF BIOMEDICAL ENG CHINESE ACAD OF MEDICAL SCI

Color collection device for reagent strip

The invention relates to a color collection device for a reagent strip. The device comprises a display device, a contact image sensor, and an objective table support, wherein the display device, the contact image sensor, and the objective table support are installed on a main body. The contact image sensor includes a sensor rack body; a sensor circuit board is arranged on the top of the sensor rack body; a photodiode array is installed below the sensor circuit board; a filter film is arranged below the photodiode array; a linear focusing lens is arranged below the filter film; and a light-emitting diode array is arranged on at least one side surface of the linear focusing lens. A piece of protection glass is installed at the lower surface of the sensor rack body; and a predetermined included angle is formed between the plane where the light-emitting diode array is located and the protection glass plane. The objective table support is arranged under the contact image sensor and is provided with an objective table sliding slot; an objective table guide rail is arranged in the objective table sliding slot; an objective table is installed in the objective table sliding slot in a sliding mode; and an object groove is formed in the objective table. With the color collection device, measurement on a dry-chemical-method reagent strip and a colloidal gold reagent strip can be realized.
Owner:WEIKAN HEALTH TECH SHANGHAI CO LTD

Oral cavity lamp

The invention discloses an oral cavity lamp comprising an installation rod, a connection rod, an arc-shaped plate and a reflection disc. The connection rod is arranged on the lower end of the installation rod; the connection rod is hinged with the installation rod; the arc-shaped plate is mounted on one side of the connection rod; one end of the arc-shaped plate is fixedly connected with the connection rod; the reflection disc bottom is provided with a heat radiating block and a main light source; the arc-shaped plate is fixedly connected with the heat radiating block; a transverse rod is mounted on the middle part of the reflection disc; a light hole is formed in the middle of the transverse rod; a camera is mounted on the bottom of the transverse rod; two ends of the transverse rod are provided with handles; each handle is T-shaped; and a lateral light source is disposed in each handle. The oral cavity lamp can be conveniently installed and easy to adjust, and can meet various observation demands.
Owner:CHENGDU XUNDE SCI & TECH

Vertical rotating fluorescent molecule tomography imaging system

The invention discloses a vertical rotating fluorescent molecule tomography imaging system. The imaging system comprises a light source excitation device, an optical fiber switching device, a winding reel, a fluorescence excitation device, a fluorescence detection device, a rotating table, an examination table, a horizontal moving table and a computer. The optical fiber switching device and the winding reel solve the problems of electrical connection, optical transmission and data transmission in the rotating process of an imaging platform, and meanwhile two imaging modes can be switched freely; the design of an optical path of a plane mirror is adopted in an imaging part, the rotation radius of the system is reduced, and therefore the system can be simple and compact; reflecting type two-dimensional fluorescent molecule imaging and transmission-type three-dimensional fluorescent molecule tomography imaging of 360 degrees can be achieved at the same time, the two imaging modes are integrated on the same device, and the amount of information capable of being obtained is increased; the light source excitation device, the optical fiber switching device, the fluorescence detection device and the like are designed in a modular mode, and therefore the portability and the universality are good.
Owner:PEKING UNIV

Lens system suitable for LED road lamp

The invention relates to a lens system which is applicable to an LED street lamp and is matched with an LED illuminant for use to form light distribution with multiple Light beam angles and light intensities. A plane of light incidence of a lens in the system being close to the LED illuminant is a compound curved surface of an aspherical concave surface, and a light-emitting surface is a compoundcurved surface of an aspherical convex surface; the shapes of the incident surface and the emitting surface are determined by the luminescent properties of the LED illuminant and the requirement of the emergent ray; after the light ray emitted by the LED illuminant is refracted by the lens, facula formed on the irradiation surface within a certain distance has the characteristics of being comparatively long in the distance covered by the facula along one direction being vertical to the axes of the LED illuminant, being comparatively shorter in the distance covered by the facula along another direction being vertical to the direction, being symmetrical in the shapes of the faculas correspondingly to the axes of the LED illuminant, and taking on the distribution which is similar to rectangle. Similar plane isolux distribution curve shape as well as completely different maximum light intensity values of the light beam and half peak value light intensity light beam wrap angles can be obtained by the LED illuminant through different lenses, so that the lens system is especially suitable for the LED light fittings having the requirement of rectangle illumination scope.
Owner:NINGBO LIAOYUAN IND

External thermal insulation device

The invention relates to the technical field of agricultural engineering, and provides an external thermal insulation device. The external thermal insulation device is used for conducting thermal insulation on a glass greenhouse. The device comprises a thermal insulation piece, a winding mechanism and a drawing mechanism, wherein the thermal insulation piece is used for being laid on a glass boardof the glass greenhouse; the winding mechanism is arranged at the bottom of the glass board and connected with a first side edge of the thermal insulation piece, and the winding mechanism is used forwinding the thermal insulation piece up; the drawing mechanism is arranged at the top of the glass board; a second side edge of the thermal insulation piece is connected with the drawing mechanism, and the drawing mechanism is used for drawing the thermal insulation piece and making the thermal insulation piece spread and laid on the glass board. By installing the external thermal insulation device on the outer side of the top of the glass greenhouse, the winding mechanism winds the thermal insulation piece up, it is achieved that the glass greenhouse is exposed to the sunlight, the glass greenhouse absorbs heat, the drawing mechanism draws the thermal insulation piece out of the winding mechanism, and it is achieved that the glass greenhouse is covered with the thermal insulation piece.The glass greenhouse dissipates less heat, and thermal insulation is achieved. The heat storage capacity of the glass greenhouse is improved, the structure is simple and compact, and the thermal insulation effect is good.
Owner:BEIJING RES CENT OF INTELLIGENT EQUIP FOR AGRI

Nuclear fuel irradiation test method

The invention discloses a nuclear fuel irradiation test method, and belongs to the technical field of research on reactor fuel irradiation. The nuclear fuel irradiation test method comprises the following steps: packaging fuel, wherein filling the fuel into pre-processed and installed and welded fuel assemblies each with a one-way opening, arranging each a pair of the assemblies to be one group between clamping block assemblies side by side; conveying a test section into a reactor, wherein hoisting the test section in the reactor from the reactor top, irradiating the test section to be at a reactor core active section, and connecting a irradiation device section with the reactor top through a flange in sealed connection; carrying out in-reactor test, wherein testing and monitoring relatedparameters after the fuel enters the reactor along with the irradiation device; and discharging the test section out of the reactor, wherein discharging the fuel after a irradiation neutron fluence specified by the test is reached through irradiation. The nuclear fuel irradiation test method is invented aiming at the irradiation requirement of novel nuclear fuel in reactors; the nuclear fuel irradiation test method is more economical and reliable, can reflect the irradiation condition of the nuclear fuel in the reactor in real time, and accurately obtain related irradiation parameters.
Owner:NUCLEAR POWER INSTITUTE OF CHINA

Testing system and method used for simulating sunlight focusing

The invention relates to a testing system used for simulating sunlight focusing. The testing system comprise a sunlight simulating device, an angle regulating device and a reflector which a lined up at certain intervals and is characterized in that the angle regulating device is provided with a rotary shaft, and the rotary shaft is vertical to a platform and fixedly connected with the same; the rotary shaft can be driven by a first power mechanism to rotate and driven by a second power mechanism to rotate in a vertical plane so as to drive the platform to rotate, and the platform is used for placing and fixing a to-be-test object; the reflector is provided with a reflecting mirror surface, the reflecting mirror surface is provided with an angle meter, the reflecting mirror surface receivesthe light of the sunlight simulating device and reflects the light to the to-be-tested object, and the to-be-tested object is provided with a lens structure. The testing system has the advantages that sunlight irradiation of various incidence angles can be precisely and reliably simulated, and the testing results are allowed to have high repeatability; the system's requirements on testing sites are lowered; the rotation and movement of the angle regulating device are controlled automatically, and the testing process is allowed to be simple and efficient.
Owner:HASCO VISION TECHNOLOGY CO LTD

Integrated omnidirectionally-adjustable all-angle-illumination solar LED street lamp

The invention relates to an integrated omnidirectionally-adjustable all-angle-illumination solar LED street lamp which comprises a lamp body, wherein a solar cell panel is arranged on the upper end surface of the lamp body; an LED lamp is arranged on the lower end surface of the lamp body; the rear end of the lamp body is connected with a rotary mounting tube through a rotary control box; the front end surface of the rotary control box is correspondingly connected to two sections of rotary arc grooves symmetrically arranged in the same circumference in the rear end surface of the lamp body in a penetrating manner through two fixing bolts and is fixedly connected to the lamp body; a cylindrical shell joint is arranged on the rear part of the rotary control box; a rotary cylinder joint is arranged at the front end of the rotary mounting tube; a cylindrical surface of the rotary cylinder joint is correspondingly inserted into the cylindrical surface of the cylindrical shell joint; one shell fixing hole or one group of bilaterally symmetric shell fixing holes is formed in the cylindrical surface of the cylindrical shell joint; one or two circles of two or more joint fixing holes uniformly distributed are formed in the cylindrical surface of the rotary cylinder joint; the shell fixing holes correspondingly penetrate into and are fixedly connected to the joint fixing holes through two fixing bolts; a circle of two or more rotary mounting holes uniformly distributed are formed in the cylindrical surface of the rear part of the rotary mounting tube.
Owner:奚华

Focusing illumination lamp

The invention relates to a focusing illumination lamp which comprises a lamp seat, wherein the lamp seat is provided with an illuminant body, a lamp groove is formed in the center of the front end of the lamp seat, the illuminant body is arranged in the lamp groove, a first lens is arranged at the front end of the lamp groove, a first lamp shell is arranged on the outer side of the lamp groove, a second lamp shell is arranged on the outer side of the first lamp shell, the first lamp shell is sleeved with the rear end of the second lamp shell, a lamp tube is arranged in the second lamp shell, the lamp tube is in moving fit with the second lamp shell through a screw joint structure, a second lens is arranged at the front end of the lamp tube, a cavity of the first lamp shell and a cavity of the second lamp shell together form a light beam channel of the illuminant body, and the first lens and the second lens are both arranged on the light beam channel. The focusing illumination lamp can achieve zoom, the spot size can be continuously adjusted, emergent spots are even and soft and have no obvious edges, illumination from different angles on cultural relics of different sizes can be achieved, and the three-dimensional illumination effect of the cultural relics can be achieved.
Owner:ZHENZHOU FENGHUA INDAL

Long-afterglow nanoparticle with fluorescence encryption anti-counterfeiting characteristics, and preparation method thereof

The invention provides a long-afterglow nanoparticle with fluorescence encryption anti-counterfeiting characteristics, and a preparation method thereof. The long-afterglow nanoparticle is composed oftwo nanoparticles, namely a ZnAlxGeyO(2+3x+4y) / 2 nanoparticle serving as interference information and a ZnAlx-zCrzGeyO(2+3x+4y) / 2 nanoparticle serving as anti-counterfeiting information, wherein x isgreater than 0 and less than or equal to 2, y is greater than 0 and less than or equal to 1, z is greater than 0 and less than or equal to 0.3, and z is less than x; the ZnAlx-zCrzGeyO(2+3x+4y) / 2 nanoparticle emits visible light under the excitation of ultraviolet light, and emits near-infrared light under the stop of the excitation of the ultraviolet light; and the ZnAlxGeyO(2+3x+4y) / 2 nanoparticle emits visible light under the excitation of ultraviolet light, and does not emit light when the excitation of the ultraviolet light is stopped. A fluorescent anti-counterfeiting ink can be preparedby utilizing different optical characteristics of the two nanoparticles, digital anti-counterfeiting and two-dimensional code anti-counterfeiting application of fluorescent encryption is realized, the encryption and anti-counterfeiting processes are easy to operate, the encryption degree is high, the encryption stability is high, the anti-counterfeiting concealment is strong, and the identification degree is high.
Owner:HANSHAN NORMAL UNIV

Headlight led far and near light integrated pes unit with adb function

The invention relates to an automobile lamp LED high-low beam integrated PES unit with an ADB function. A high-beam LED circuit board small assembly, a low-beam LED circuit board small assembly and a reflector are arranged in an optical module. A condenser is fixedly arranged right in front of the high-beam LED circuit board small assembly. When the low-beam LED circuit board small assembly works, light rays are reflected to a second focus by the reflector; most light rays are directly emitted into a lens, and small part of the light rays are refracted to enter the condenser and are then subjected to total reflection and refraction again on the front end face and the lower surface of the condenser correspondingly, so that the small part of the light rays do not enter the lens; thus a shading function is achieved, and in this way, the light emitted from the lens can form a low beam shape with a cut-off line. When the high-beam LED circuit board small assembly works, after being focused at the second focus by the condenser, part of light rays are directly emitted and then emitted into the lens; part of the light rays are subjected to total reflection when meeting the upper surface of the condenser, are emitted from the front end face of the condenser, and then emitted out after being emitted into the lens; thus a high-beam function is achieved.
Owner:HASCO VISION TECHNOLOGY CO LTD

Agricultural cultivation device

The invention provides an agricultural cultivation device. The agricultural cultivation device is characterized in that a support body is of a structure with the cross section in the shape of a right triangle, arranging frames are uniformly arranged on an oblique plane of the support body, irrigation pipelines are arranged above the arranging frames, drip irrigation heads are uniformly arranged on the irrigation pipelines, drain pipelines are arranged below the arranging frames, a plant growth lamp is arranged on the top of the oblique plane of the support body, arranging conveying tracks are arranged on the arranging frames, one end of each arranging conveying track is connected with an arranging lifting track, the arranging lifting track is arranged on a side of the oblique plane of the support body, a mounting plate is arranged on the top of the oblique plane of the support body, red-light lamps and blue-light lamps are arranged at the bottom of the mounting plate, light sensing devices are arranged on the top of the mounting plate, lamp covers are arranged on the mounting plate and are arranged on the tops of waterproof lampshades, circuit substrates are arranged in the waterproof lampshades, growth lamps are arranged at the lower ends of the circuit substrates, wires are arranged at the upper ends of the circuit substrates, and sealing components are arranged on the outer sides of the wires. The agricultural cultivation device has the advantage that damage to the plant growth lamps due to water which flows into the red-light lamps and the blue-light lamps can be prevented.
Owner:TIANJIN CHANGJIU TECH DEV

Night external light lamp irradiation range adjusting frame based on sewage treatment photocatalysis principle

The invention relates to sewage treatment equipment, in particular to a night external light lamp irradiation range adjusting frame based on a sewage treatment photocatalysis principle. The frame comprises a double-groove guide plate, a slide rail, a connecting rod and the like, the two slide rails are fixedly installed on the double-groove guide plate, the two connecting rods are installed in sliding grooves of the sliding rails in a sliding mode, an ultraviolet lamp holder left-right moving mechanism is installed on one sides of the connecting rods, and an ultraviolet lamp holder front-backmoving mechanism is installed on the double-groove guide plate and the ultraviolet lamp holder left-right moving mechanism. According to the ultraviolet lamp holder left-right moving mechanism, a connecting frame and a swing connecting shaft rod can be driven to swing through rotation of a swing rod, so that the ultraviolet lamp slides on a T-shaped guide rod, the ultraviolet lamp holder front-back moving mechanism works in cooperation to enable the ultraviolet lamp to move left and right in a sewage pool, and ultraviolet light irradiation on all positions of the sewage pool is achieved.
Owner:叶飞

Medical image observation lamp box

InactiveCN108845423AEasy to observeSolve the problem that the light and easy adjustment function cannot be achievedOptical elementsEngineeringLED lamp
The invention discloses a medical image observation lamp box which comprises a film pressing plate, a housing and a rotating shaft. One side of the housing is provided with a first bracket through therotating shaft, and the outer side of the housing is provided with a second bracket through the rotating shaft. The surface of the housing is provided with a glass window. The inner walls of the housing at two sides of the glass window are provided with LED lamps. The upper end and the lower end in the housing are provided with light supplementing lamps. A fixed plate is fixedly mounted in the housing. One side of the fixed plate is provided with the film pressing plate through an articulated shaft. The top end of the film pressing plate is provided with a second magnet. The top end of the fixed plate is provided with a first magnet. The top end in the housing is provided with a heat radiating fan. According to the medical image observation lamp box, through arranging the rotating shaft,the housing, a curtain, the light supplementing lamps, the LED lamps, the glass window, the heat radiating fan, the film pressing plate, the fixed plate, the first magnet and the second magnet, problems of incapability of realizing easy adjustment and low film pressing firmness are settled.
Owner:PEKING UNION MEDICAL COLLEGE HOSPITAL CHINESE ACAD OF MEDICAL SCI

Double-beam lower roller assembly cable irradiation self-shielding electron acceleration device

The invention provides a double-beam lower roller assembly cable irradiation self-shielding electron acceleration device. The device comprises an electron accelerator, a shielding body, a first shielding door, a second shielding door, a first beam lower roller assembly and a second beam lower roller assembly; a beam current lead-out hole of the electron accelerator penetrates through a first shielding plate of the shielding body to enter a first shielding chamber; the first shielding door and the second shielding door are arranged on the two sides of the first shielding chamber of the shielding body; the first beam lower roller assembly can drive the first shielding door and the first shielding chamber to be closed or opened; and the second beam lower roller assembly can drive the second shielding door and the first shielding chamber to be closed or opened. By the double shielding doors and double beam lower rollers, rays can be effectively shielded, and two kinds of cable irradiationwith different specifications and different doses can be realized.
Owner:CGN DASHENG ELECTRON ACCELERATOR TECH

Endoscopic measurement method for internal flow field of valve

The invention relates to an endoscopic measurement method for the internal flow field of a valve. A PIV (Particle Image Velocimetry) technology is combined with an endoscope to measure the internal flow field of the valve. A hole groove sealed and covered with transparent glass is formed in the surface of the valve, so that a laser sheet of a PIV system can irradiate the internal of the valve, andillumination of the internal area of the valve is realized; and an endoscope hole is arranged in the downstream of a valve outlet, so that the endoscope is extended into an outlet pipe, and connectedwith a PIV camera to measure the internal flow field.
Owner:CHINA SHIP SCIENTIFIC RESEARCH CENTER (THE 702 INSTITUTE OF CHINA SHIPBUILDING INDUSTRY CORPORATION)

Animal irradiation experiment device

The invention discloses an animal irradiation experiment device which comprises a box body, wherein a box cover is arranged on the box body, and the box cover covers the box body to form a closed environment; an animal fixing plate is arranged on the upper surface of a bottom plate of the box body, and a plurality of animal fixing beds are arranged on the animal fixing plate in parallel; and the box body, the box cover and the animal fixing beds are all made of polymethyl methacrylate materials which are light-permeable and can resist high-pressure disinfection and sterilization, and a ventilation window is made of airtight and breathable nuclear track membrane materials. The disclosed animal irradiation experiment device can be used for sufficiently fixing and positioning an experimental animal and ensuring that an experiment is smoothly carried out; and a closed and clean environment needed in experimental animal transfer is guaranteed, and the experimental device materials are guaranteed to have small influence on ray attenuation and can tolerate repeated high-pressure disinfection and sterilization.
Owner:INST OF MODERN PHYSICS CHINESE ACADEMY OF SCI

Ornamental fishpond

The invention relates to an ornamental fishpond. The ornamental fishpond comprises a water pond, a fishing mechanism and a purifying mechanism, wherein the fishing mechanism comprises a fishing net and fishing assemblies; and the purifying mechanism comprises a connecting pipe, a water tank, a water pump, a water inlet pipe, a water outlet pipe, a communicating pipe, a purifying tank and a purifying assembly. According to the ornamental fishpond, a sliding block is driven by pull ropes to move, so that the fishing net is driven to move, the fishes in the water pond are fished up, water pumping of the water pond is not needed, the time is saved, and the fishing efficiency is improved; water in the water pond is cleaned through the purifying mechanism, besides, oxygenation of the fishes in the water pond can be achieved, and the fishes become more active; after cleaning is completed, through the gravity of a balancing weight, a filter screen moves towards the communicating pipe, so that the filter screen is separated from the purifying tank, air drying and irradiation of the filter screen are realized, sterilization of the filter screen is realized, corrosion of water to the filter screen is reduced, and the service life of the filter screen is prolonged.
Owner:王国文
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