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109results about How to "Reduce light transmittance" patented technology

Composite film material with lasting fragrance, preparation method and application of composite film material in sticky note

The invention discloses a composite film material with lasting fragrance, a preparation method and application of the composite film material in sticky notes, and belongs to the technical field of composite film materials. The composite film material is composed of a PET layer, a bonding layer and a CPP layer; the PET layer comprises PET resin, composite filler, a coupling agent, an antioxidant, an ultraviolet light absorber, a heat stabilizer and a light stabilizer; the bonding layer is composed of a solvent type polyurethane adhesive; the CPP layer comprises PP resin, a modified filler, microcapsule essential oil, a coupling agent, an antioxidant, an ultraviolet light absorber, a heat stabilizer and a light stabilizer; the composite film material prepared by the invention not only has lasting fragrance, but also has strong binding force with a writable coating, high strength, good dimensional stability and high transparency.
Owner:JIAXING HUASHAN STATIONERY MFG CORP LTD +1

Photovoltaic module gap synergistic film and preparation method and application thereof

The invention provides a photovoltaic module gap synergistic film and a preparation method and application thereof.The photovoltaic module gap synergistic film comprises a bonding layer, a functional layer and a composite base material layer are sequentially arranged on the bonding layer from bottom to top, the bonding layer is a pressure-sensitive adhesive layer containing an activatable material, and the functional layer is a functional layer containing an ethylene copolymer with the melting point ranging from 70 DEG C to 120 DEG C; therefore, not only are the positioning bonding performance and the reflectivity of the product improved, but also the overall performance of the photovoltaic module is ensured, and meanwhile, the gap synergistic film of the photovoltaic module is torn off from the battery in a lossless manner so as to repair or recycle the photovoltaic battery.
Owner:KOLESI TECHNOLOGY (WUXI) CO LTD

Intelligent window with spectrum regulation and control and phase change energy storage functions and preparation method of intelligent window

The invention provides an intelligent window with spectrum regulation and control and phase change energy storage functions and a preparation method of the intelligent window, and belongs to the field of door and window equipment. The intelligent window comprises a first high-light-transmittance film, temperature-sensitive gel, a second high-light-transmittance film and a phase change composite material which are sequentially stacked. According to the invention, the temperature-sensitive gel plays a role in spectrum adjustment, before and after phase change, the temperature-sensitive gel is converted from transparent to opaque, the sunlight transmittance is significantly reduced, the light transmittance is significantly reduced when the temperature rises to be close to the phase change temperature of the temperature-sensitive gel, and the entry of solar heat is reduced; the phase-change composite material can absorb heat on the surface of the window, increase thermal inertia of the window, slow down temperature rise of the surface of the window, reduce indoor thermal radiation and convection of the window, release heat at night, delay temperature drop of the window, change from opaque to transparent before and after phase change, and remarkably improve sunlight transmittance. The temperature is continuously reduced at night, high haze is presented, and the privacy protection effect is achieved.
Owner:INNOVATION CENTER OF YANGTZE RIVER DELTA ZHEJIANG UNIVERSITY

Film coating structure, film coating equipment and method for high-light-transmittance lens

The invention provides a high-light-transmittance lens coating structure which comprises a plurality of coating layers which are sequentially arranged towards the outer side along the surface of an optical lens, the thicknesses of the coating layers are sequentially reduced from the center position of the optical lens to the edge, and the coating layers are made of silicon oxide. The invention further provides coating equipment for preparing the high-light-transmittance lens coating structure. The invention further provides a film coating method for preparing the high-light-transmittance lens film coating structure. According to the invention, the reflection light leaving from the interface is easier to return to the lens direction through the coating film superposition arrangement of the plurality of layers of convex lens structures by utilizing the principles of light path reflection and refraction and matching with the shape of the coating film layer, so that the proportion of the reflection light is reduced, and the light transmittance is improved. According to the invention, the processing can be completed at one time, and multiple vacuum coating operations can be carried out without respectively using multiple evaporation sources, so that the workload is greatly reduced, and the processing efficiency is further improved.
Owner:HUBEI DOTI MICRO TECH CO LTD

Dye-series high-durability OLED polaroid for vehicle-mounted display and preparation method of dye-series high-durability OLED polaroid

The invention relates to the technical field of polaroids, and discloses a preparation method of a dye-based high-durability OLED (Organic Light Emitting Diode) polaroid for vehicle-mounted display, and the preparation process comprises the following steps: putting a PVA (Polyvinyl Alcohol) film into a swelling tank containing 1.0 wt%-2.5 wt% of boric acid for swelling pretreatment; dip dyeing: soaking the PVA film subjected to dip dyeing treatment in a solution tank containing boric acid, and stretching the PVA film; the concentration of boric acid is 1wt%-6wt%, drying, curing the original plate, gluing, coating a pressure-sensitive adhesive on the dye polarized original plate, and then compounding the compensation film A, the compensation film B and the like. The dye-series high-durability OLED polaroid prepared by the invention has a thinned structure and excellent weather resistance, and after a 105 DEG C * 1000h dry temperature test, a 85 DEG C * 85% RH * 1000h high-temperature and high-humidity test and a weather resistance test are met, the optical performance change rate of the polaroid is less than or equal to 5%, and the product is free from depolarization and layering.
Owner:FOSHAN WEIDA OPTOELECTRONIC MATERIALS CO LTD

Water-based high-covering quick-drying white ink and preparation method thereof

The invention belongs to the technical field of digital ink-jet printing, and particularly relates to water-based high-covering quick-drying white ink and a preparation method thereof, expensive nano-scale titanium dioxide is replaced by a mode of compounding organic and inorganic light diffusion powder, so that the production cost is reduced; wherein the composite high-coverage white powder comprises modified nano calcium carbonate, organic silicon light diffusion microspheres and polymethyl methacrylate (PMMA) light diffusion microspheres, the modified nano calcium carbonate and the light diffusion powder can play a good extinction effect, the haze of the ink is well improved, meanwhile, the light transmittance of the ink is greatly reduced, the appearance of a product is more uniform, and the product quality is improved. And the overall performance is improved. Nano calcium carbonate is modified, and the crystal form is controlled after modification, so that the affinity of the nano calcium carbonate and organic microspheres is increased, the dispersity and interface contact strength of the nano calcium carbonate in an aqueous medium are improved, a uniform dispersion system is formed, the uniformity and stability of the white ink are improved, and the product performance of the white ink is further improved.
Owner:ZHEJIANG KING LABLE TECH CO LTD

Automatic color changing protective lamp

The utility model discloses an automatic color changing protective lamp which comprises a lamp holder and a light source located in the lamp holder, the spectral wavelength of light emitted by the light source is larger than or equal to 400 nm, and a photochromic piece with photochromic materials is arranged on a light path of the light source. The photochromic material changes color to reduce the light transmittance under the irradiation of light with the spectral wavelength lower than 400 nm, and keeps a high-transmittance state under the irradiation of light with the spectral wavelength larger than or equal to 400 nm. According to the automatic color-changing protective lamp, the photochromic part made of the photochromic material is arranged and allows light rays with the spectral wavelength larger than or equal to 400 nm emitted by the light source to freely pass through, but the light rays with the spectral wavelength smaller than 400 nm in sunlight change color to reduce the light transmittance, so that the light beam energy intensity of the sunlight entering the lamp is reduced, and the light transmittance of the lamp is improved. Therefore, even if the focus of the light beam falls on a component which is not resistant to high temperature in the lamp, the temperature of the component is not increased too much to cause burning damage.
Owner:GUANGZHOU HAOYANG ELECTRONICS CO LTD +1

Metal duct pre-installation structure

This application discloses a prefabricated installation structure for metal ducts, belonging to the technical field of pipe connection structures. It provides a prefabricated installation structure for ducts with better connection flatness, including a bridging component connecting adjacent ducts. The bridging component includes an inner frame and an outer frame. A narrowing frame is provided between the outer wall of the inner frame and the inner wall of the outer frame. Embedded grooves are formed between the two end faces of the narrowing frame and the outer walls of the inner and outer frames. A pressing component is fixedly connected to a pair of opposing outer sides of the outer frame. The duct has an outwardly extending side plate on the side perpendicular to the pressing component. A snap-fit ​​component is fixedly connected to the outer frame on the side perpendicular to the pressing component. This invention, by providing a pressing component structure on opposing sides and applying pre-pressure, can better keep adjacent ducts in the same extension direction. Combined with the bridging component embedded in the duct end structure, the connection ends of the duct units can be kept flush, effectively reducing the light transmission probability at the connection point and effectively improving airtightness.
Owner:ZHONGKE SUNBROAD CONSTR GRP CO LTD

A non-contact method for rapid alcohol detection

The present invention discloses a method for non-contact rapid detection of alcohol. The method comprises the steps of: placing a polydimethylsiloxane film above a solution to be tested, obtaining the initial color of the polydimethylsiloxane film, the polydimethylsiloxane film comprising a polydimethylsiloxane base and a micro-nano structure layer arranged on the surface of the base; obtaining the current color of the polydimethylsiloxane film after a preset time; comparing the current color and the initial color of the polydimethylsiloxane film, when the current color is consistent with the initial color, the solution to be tested does not contain alcohol, and when the current color is inconsistent with the initial color, the solution to be tested contains alcohol. The present invention arranges a micro-nano structure on the surface of the polydimethylsiloxane film, and alcohol contacts the surface to change its light transmittance, making its color lighter, so as to detect the presence of alcohol. The method is simple to operate, does not need to contact the solution to be tested, has low cost, no energy consumption, and takes less time.
Owner:CENT SOUTH UNIV

Laminated composite curtain fabric

The laminated composite curtain cloth comprises a black base cloth layer, at least a white elastic laminated layer is arranged on the front side of the black base cloth layer, the gram weight of the black base cloth layer is 80-180g / m < 2 >, and a silver elastic laminated layer with antistatic capability is adhered to the back side of the black base cloth layer. The elastic lamination layers are directly bonded with the black base cloth layer, a padding adhesive can be omitted, the composite curtain cloth structure is simplified, meanwhile, the silver elastic lamination layers are arranged to reduce the light transmittance, the elastic lamination layers on the front face and the back face are both subjected to flexibility and antibacterial and mildew-proof modification, and the light transmittance is improved. The black base cloth layer is light in weight, environmentally friendly, good in shading performance, high in weather resistance, high in mechanical property, good in antibacterial and mildew-proof performance and long in service life, high-frequency embossing treatment is carried out on the edge of the laminated composite curtain cloth, the tensile strength and the bending resistance are improved, and the application range is wider.
Owner:JIANGSU NICE DIGITAL TECH INC LTD

A polishing pad endpoint inspection window and method of making and use

The application belongs to the technical field of polishing pads, and particularly relates to a polishing pad end point inspection window and a preparation method and application thereof. The preparation method comprises the following steps: reacting aliphatic isocyanate and polyester polyol to prepare a prepolymer, mixing the prepolymer with a curing agent, vacuum defoaming, and vulcanization. The polyester polyol is polycaprolactone diol obtained by taking polycarbonate diol as a starter and modifying caprolactone. The molecular weight of the polycarbonate diol is 200-400, and the molecular weight of the polyester polyol is 1000-3000. The curing agent comprises dihydric alcohol and alicyclic polyamine. The alicyclic polyamine has a branched chain with a carbon atom number of less than or equal to 4, and the functionality of the alicyclic polyamine is greater than or equal to 2. The polishing pad end point inspection window prepared by the preparation method has high light transmittance, and the light transmittance and hardness attenuation are reduced.
Owner:WANHUA CHEM GRP CO LTD

Three-dimensional dynamic optical detection module for gem cutting and polishing process

ActiveCN224416734Ugood polarization propertiesavoid damageErbium lasersMechanical engineering
The utility model relates to gem processing detection technical field more specifically, relate to a gem cutting and grinding process three -dimensional dynamic optical detection module, including mounting bracket, the mounting bracket includes upper roof, left side board, lower bottom plate and right side board, the upper roof, left side board, lower bottom plate and right side board combine and form the rectangular structure, wherein the middle part of upper roof is provided with fixed hole, the middle part of lower bottom plate is open, the right side and left side of lower bottom plate are provided with first off -axis parabolic mirror and second off -axis parabolic mirror respectively, the upside of first off -axis parabolic mirror and second off -axis parabolic mirror is provided with semiconductor laser and acquisition camera respectively. First off -axis parabolic mirror focuses laser to gem surface, second off -axis parabolic mirror captures the laser signal of gem surface reflection, and reflects it to acquisition camera, realizes the dynamic focusing of curved surface gem detection without aberration, and this detection mode adopts non -contact detection, avoids the damage of gem surface.
Owner:GUANGZHOU CITY UNIV OF TECH

Animal control device and animal control system including same

Provided are an animal control device and an animal control system including the same. The animal control device includes a a sensor configured to detect movement of an animal, and a visual field blocker disposed to block a visual field of the animal, and having a light transmittance which is controlled according to a signal detected by the sensor.
Owner:KIM DAE SUNG

Book scanning and copying all-in-one machine based on adaptive exposure control and method thereof

PendingCN122621688AExpand the linear illumination rangeFix blown highlights
The present application relates to the field of opto-mechatronics, specifically to a book scanning and copying all-in-one machine based on adaptive exposure control and a method thereof; the machine comprises a V-shaped book loading platform, a wide-spectrum LED array, a liquid crystal tunable polarization array, a CMOS image sensor and a photochromic adaptive microlens array; the system uses the wide-spectrum LED array to penetrate the book spine dark area to provide light, and uses the Brewster angle effect of the liquid crystal polarization array to peel off the mirror reflection photons; the core is that when the local reflected light intensity reaches a preset full well critical value, anisomerization reaction occurs in the microlens array to nonlinearly reduce the light transmittance, and the light intensity is adaptively flattened; the present application uses the bottom optical devices to work cooperatively, effectively solves the problems of high light overflow and dark area detail loss in single imaging, and expands the effective quantization interval of the image signal.
Owner:GUIZHOU HONGEN AUTOMATION TECH CO LTD +1

Anti-impact and anti-dazzle integrated laminated display screen

The invention relates to an anti-impact and anti-dazzle integrated laminated display screen, and relates to the technical field of touch display screens, the display screen comprises an anti-dazzle layer, a flexible energy absorption layer and a touch display layer which are stacked in sequence; anti-reflection textures are arranged on the side, away from the flexible energy absorption layer, of the anti-dazzle layer and comprise a plurality of bosses, the cross sectional areas of the bosses are gradually decreased in the direction away from the flexible energy absorption layer, the bosses are arranged in a matrix mode, and the distance between every two adjacent bosses is smaller than the wavelength of visible light. According to the invention, the display screen has more excellent impact resistance and anti-dazzling capability at the same time, so that the display screen can meet comprehensive use requirements in a complex environment.
Owner:YACHUANG OPTOELECTRONICS (GANZHOU) CO LTD

Domestic appliance door

ActiveCN224064218UImprove captured image qualityshoot accuratelyDomestic stoves or rangesLighting and heating apparatusInterior spaceLight reflection
The utility model relates to a door for a household appliance, which can comprise a door main body arranged in front of a storage space of the household appliance; and a door panel coupled to the door body. The door panel may include a plurality of panels. A camera assembly for acquiring an image of the storage space may be disposed in a door internal space surrounded by the door main body and the door panel. The plurality of panels may include: a front panel constituting the front of the door panel; and a rear surface panel disposed rearward at a distance from the front surface panel. The camera assembly may be disposed at a position other than a region where the front panel and the rear panel face each other. Since the camera device is located outside the path of light reflection between the panels, external light cannot reach the camera device. Accordingly, the camera device can accurately capture only an image of an object disposed inside the home appliance, and can obtain an effect of improving the quality of the captured image by the camera device.
Owner:LG ELECTRONICS INC

OCA optical film and preparation method thereof

The invention relates to the technical field of optical films, in particular to an OCA optical film and a preparation method thereof.The OCA optical film comprises a five-layer structure which sequentially comprises a fluorine-containing special-shaped film layer, a silicon-containing adhesive layer, a modified PET matrix, a silicon-containing adhesive layer and a fluorine-containing special-shaped film layer, and the raw material for preparing the silicon-containing adhesive layer is a silicon-containing adhesive. The OCA optical film provided by the invention has excellent aging and yellowing resistance, high temperature resistance and flexibility, and also has better light transmittance, transmittance and flame retardant property and low refractive index.
Owner:YELLOW RIVER YUAN CO LTD +4

Heat-insulating and anti-reflection functional film

The utility model discloses a heat-insulation anti-reflection functional film which comprises a base material layer, a titanium dioxide layer, an indium tin oxide layer, a base layer and an anti-reflection layer which are sequentially stacked, the refractive index of the indium tin oxide layer ranges from 1.8 to 2.0, and the refractive index of the antireflection layer ranges from 1.40 to 1.45. On one hand, the heat insulation and anti-reflection functional film can reduce external heat entering a vehicle and reduce the use energy consumption of the vehicle in daily life, the viewing of passengers to external natural landscapes can be greatly enhanced by matching with the anti-reflection coating, and due to the fact that the forbidden band width (band gap) of the ITO thin film is usually between 3.5 eV and 4.3 eV, the heat insulation and anti-reflection functional film has a good anti-reflection effect. The energy of photons in the ultraviolet light area is larger than the forbidden band width, so that photons are absorbed and electron transition is caused, the extremely low light penetration rate is shown, and therefore the skin of a user in the vehicle can be protected from being hurt by ultraviolet rays.
Owner:JIANGSU RIJIU OPTOELECTRONICS LTD

High-performance ITO conductive glass and preparation method thereof

The application relates to the technical field of conductive glass preparation, in particular to high-performance ITO conductive glass and a preparation method thereof. The high-performance ITO conductive glass comprises, from top to bottom, a porous ITO film, an ITO film, an aluminum oxide film I, a glass substrate, an aluminum oxide film II, a niobium oxide film and a silicon dioxide film. The application innovatively prepares a porous ITO film on the surface of the ITO film, the porous structure in the porous ITO film can greatly reduce the scattering of light, and the light transmittance of the conductive glass is improved. Meanwhile, the porous ITO film has conductivity, and the carriers in the ITO film can be transmitted to the surface of the porous ITO film, so that the low square resistance of the ITO conductive glass is ensured, and the problem that the high light transmittance and the low square resistance of the ITO conductive glass cannot be simultaneously achieved is solved.
Owner:LUOYANG INST OF SCI & TECH

Light absorption film, shooting module and electronic equipment

The invention relates to a light absorption film, a shooting module and electronic equipment. The light absorption film comprises a first titanium film layer and two anti-reflection film layers, the two anti-reflection film layers are arranged on the two sides of the first titanium film layer respectively, each anti-reflection film layer comprises a titanium dioxide layer and a silicon dioxide layer, and the silicon dioxide layer is arranged on the side, opposite to the first titanium film layer, of the titanium dioxide layer. The titanium dioxide layer and the silicon dioxide layer in the anti-reflection film layer are attached to each other. The light absorption film can effectively absorb light rays and reduce reflection of the light rays on the light absorption film, so that stray light and interference light in a light path are reduced, the phenomena of glare, halo and the like in light path imaging are reduced, and the imaging quality of the light rays passing through the light absorption film is improved.
Owner:GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP LTD

Polyetherimide-ultraviolet light absorber composite film as well as preparation method and application thereof

The invention discloses a polyetherimide-ultraviolet light absorber composite film and a preparation method and application thereof, and the method comprises the following steps: adding a hydroxyl-containing ultraviolet light absorber into a diamine dispersion liquid to obtain a composite solution; bisphenol A type diether dianhydride is added into the composite solution in batches, stirring reaction is carried out, and composite sol is prepared; and preparing a composite film by using the composite sol, and carrying out imidization treatment on the composite film to prepare the polyetherimide-ultraviolet light absorber composite film. According to the method, a hydroxyl-containing ultraviolet light absorber is introduced, and the hydroxyl-containing ultraviolet light absorber and polyetherimide can form hydrogen bonds, so that chain segments are combined more tightly, molecular chain segments are increased, and relative movement of the chain segments is not easy to generate at high temperature, so that the thermal stability is improved, meanwhile, the weather resistance of the composite material is improved, and the service life of the composite material is prolonged. The method is simple to operate and efficient in reaction, and has wide application value.
Owner:BINZHOU DATONG GONGJU TECH CO LTD

High-light-transmittance and high-concealment layered-structure intelligent surface based on composite micro-nano structure, preparation method of high-light-transmittance and high-concealment layered-structure intelligent surface and electronic equipment

The invention discloses a high-light-transmittance and high-concealment layered structure intelligent surface based on a composite micro-nano structure, a preparation method of the high-light-transmittance and high-concealment layered structure intelligent surface and electronic equipment, and belongs to the technical field of optical technologies, functional materials and man-machine interaction. A substrate layer; a polarization / angle selective metasurface layer; the customized narrowband filtering-multilayer film system layer is optically coupled with the polarization / angle selection type metasurface layer and is configured to have high transmittance for target wave band light emitted by the display element and have high reflectivity for visible light beyond the target wave band; and a display device layer. According to the technical scheme, in the non-working state, the light transmittance of visible light is extremely low, and perfect visual concealment is achieved. And in a working state, the system has extremely high overall transmissivity for a specific wave band of a display light source, so that bright and energy-saving display is realized. And the required optical power is obviously reduced, and the heat dissipation risk is reduced fundamentally.
Owner:GAC COMPONENT CO LTD

Bio-based polyamide film for aluminum-plastic film packaging and preparation method of bio-based polyamide film

The invention relates to the technical field of packaging materials, in particular to a bio-based polyamide film for aluminum-plastic film packaging and a preparation method of the bio-based polyamide film. The film comprises a coating layer and a bio-based polyamide base material layer, the coating layer is formed by coating the surface of the bio-based polyamide base material layer with acrylic acid coating liquid, and the acrylic acid coating liquid comprises organic silicon modified acrylic resin, polyurethane microspheres, an aziridine cross-linking agent and water; the bio-based polyamide base material layer is composed of three layers of biaxially oriented bio-based polyamide films, and bio-based PA56 and bio-based PA5X in each layer are formed according to a certain proportion. The bio-based PA56 and the bio-based PA5X are cooperatively used and are matched with the acrylic acid coating liquid, so that the stretching ratio of the thin film is reduced, the strength, the toughness and the wear resistance of the thin film are ensured, the electrolyte resistance is improved, and the high pit flushing property of a flat film method is realized.
Owner:XIAMEN CHANGSU IND CO LTD

A new type of bladeless fan

This utility model discloses a novel bladeless fan, including a shell assembly, a centrifugal impeller, a motor, and a base assembly. The shell assembly includes a rear shell, a main shell, and a front shell. One end of the main shell has an air inlet and is detachably connected to the rear shell, while the other end is connected to the front shell. The front end of the front shell has an annular air outlet. A motor connected to the centrifugal impeller is housed within the inner cavity of the front and main shells. A funnel-shaped guide ring is provided inside the air inlet. The larger end of the guide ring smoothly transitions to the air inlet, while the smaller end extends into the guide ring of the centrifugal impeller and is a radially outward-curved arc end. The air inlet end of the guide ring is a radially curved arc end near the back of the smaller end of the guide ring. This utility model ensures that all air from the axial air inlet enters the centrifugal impeller, solving the problem of pressure relief at the air inlet end of the centrifugal impeller. It features an air inlet structure that conceals the interior and prevents debris from entering, providing excellent protection and possessing both design aesthetics and functionality.
Owner:ZHONGSHAN QINGHUA WENWU ELECTRICAL APPLIANCES CO LTD

Combined LED street lamp

The invention relates to a combined LED street lamp which comprises a lamp pole, a lamp holder is arranged on the lamp pole, a lampshade is arranged on the lamp holder, a mounting frame is arranged on the lamp pole, a cleaning assembly is arranged on the mounting frame and comprises a connecting plate slidably connected to the mounting frame, and connecting columns are arranged at the two opposite ends of the connecting plate. A cleaning cylinder is jointly and rotationally connected between the two connecting columns, the cleaning cylinder is made of an elastic material and abuts against the outer surface of the lampshade, a driving assembly is arranged on the lamp post, the cleaning cylinder is driven by the driving assembly to reciprocate along the outer surface of the lampshade, and the cleaning cylinder generates multiple scraping force on dirt when moving, so that the dirt is scraped by the cleaning cylinder; dirt is finally cleaned out of the surface of the lampshade through the cleaning cylinder. The street lamp has the effects that the lampshade is automatically cleaned, and the lighting effect of the street lamp is improved.
Owner:JIANGSU HUAXIA LAMP IND MFG CO LTD

A lighting fixture that is easily adjustable

ActiveCN224743374Ureduce light transmittanceReduce direct luminous intensity
The utility model discloses a kind of lighting lamps and lanterns of being convenient for adjusting, including rotatably arranged lamp bead disc and lampshade disc, lampshade disc covers the luminous surface of lamp bead disc, lamp bead disc includes at least one group of annular distribution lamp bead body;At least one diffusing ring is correspondingly provided on lampshade disc, diffusing ring is arranged with multiple shading portion and light outlet portion of alternately setting along its circumferential direction, wherein, the light transmittance of light outlet portion is much greater than the light transmittance of shading portion;Rotating lampshade disc, to change the relative angle of shading portion relative to lamp bead body;By continuous rotation adjustment, reach the desired overall or local brightness distribution and glare control effect;The present lighting lamps and lanterns by making diffusing ring with alternately shading portion and light outlet portion can rotate around concentric lamp bead disc, realized in without changing light source and without complex electronic dimming condition, to luminous flux distribution and viewing direction glare is directly and reversibly adjusted, simple and easy to use.
Owner:GUANGDONG LANGSHENG ELECTRONICS CO LTD

A method for using film covering to prevent weeds in intensive flower production

This invention discloses a method for using mulching to prevent weeds in intensive flower production, relating to the field of agricultural flower technology. The mulching method includes a mulch film and a heat-insulating film. The mulch film consists of an inhibitory layer and a light-blocking layer, with the light-blocking layer adhered to the outer surface of the inhibitory layer. The heat-insulating film consists of a heat-insulating layer and a frost-proof layer, with the frost-proof layer adhered to the outer surface of the heat-insulating layer. The mulch film inhibits weed growth, ensuring that no weeds consume nutrients during the seedling and growth stages, reducing weeding costs and increasing the growth rate of flowers. The method of use involves first applying the mulch film, then flexibly cutting holes according to the plant spacing of the seedlings. This allows for flexible hole cutting based on the plant spacing, and then covering the roots with soil to prevent sunburn, reducing weeds throughout the growth period, lowering the cost of manual weeding or herbicides, and also providing warmth, moisture retention, pest control, and uniform growth.
Owner:GUIZHOU HORTICULTURAL INST (GUIZHOU HORTICULTURAL ENG TECH RES CENT)

Flood prevention buoy for water conservancy project

The utility model provides a flood prevention buoy for a water conservancy project and belongs to the technical field of flood prevention buoys. Comprising a floating body, the top of the floating body is provided with a plurality of inclined planes which are arranged in a circumferential mode, the middle of the top of the floating body is fixedly connected with a mounting frame, the mounting frame is a polyhedron, the number of the mounting frame is consistent with that of the inclined planes, each side face of the mounting frame is inclined, and a frame is fixedly connected to the upper portion of each side face. First sliding grooves are formed in the two sides of the frame correspondingly, photovoltaic panels parallel to the side faces of the mounting frame are arranged on the side faces of the mounting frame correspondingly, and a first cleaning mechanism used for cleaning the photovoltaic panels is mounted on the frame. According to the utility model, through the arrangement of the first cleaning mechanism, the cleaning roller can clean the outer surface of the photovoltaic panel in the sliding process, and the problems that the light transmittance and the heat dissipation efficiency of the photovoltaic panel are reduced, the generating capacity is reduced, the temperature of the photovoltaic panel is increased, and normal use is affected due to the fact that dust stays on the photovoltaic panel and shields the photovoltaic panel are solved.
Owner:ANHUI JINGYAO CONSTRUCTION CO LTD

High-value equipment damping system and method

The invention discloses a high-value equipment damping system and method, and relates to the technical field of damping systems.The high-value equipment damping system comprises a plurality of shells, the bottoms of the shells are slidably connected with adjusting threaded rods, the bottom ends of the adjusting threaded rods are rotatably connected with suction cups, and the positions, close to the bottoms of the shells, of one ends of the adjusting threaded rods are in threaded connection with adjusting nuts; two first sliding rails are fixedly connected to the inner wall of the top of the shell, and a first sliding plate is slidably connected to one side of each first sliding rail. According to the high-value equipment damping system and method, the second threaded rod and the first threaded rod are different in thread pitch, the thread pitch of the second threaded rod is large, the thread pitch of the first threaded rod is small, the first threaded rod can finely adjust the height of one corner of the mounting plate, and the height of one corner of the mounting plate is roughly adjusted through the second threaded rod; and the effect of adjusting the levelness of the damping system on the common ground is achieved.
Owner:ZHENHENG TECH CO LTD

Heat-resistant blister packaging box and preparation method thereof

The application belongs to the technical field of high polymer materials, and particularly relates to a heat-resistant blister packaging box and a preparation method thereof. According to weight parts, the heat-resistant blister packaging box comprises the following raw materials: 100 parts of polylactic acid, 4-8 parts of heat-resistant stabilizer, 1-3 parts of nucleating agent, 0.5-1 parts of chain-extending compatibilizer, 0.1-0.5 parts of antioxidant, and 0.1-0.3 parts of release agent. The application designs a multifunctional heat-resistant stabilizer with an aromatic imide-sulfone-siloxane structure, and constructs a synergistic crystallization system with a phenyl zinc phosphonate nucleating agent, and cooperates with a segmented temperature control rapid heat setting process. The heat distortion temperature of the obtained blister packaging box can reach 93.1 DEG C, the light transmittance is kept above 89.5%, the haze is below 3.5%, the forming cycle is shortened to 6-10 seconds, and there is no small molecule migration risk, so that the industrial production needs of the heat-resistant transparent packaging for food contact are met.
Owner:LUOYANG WEIMEI PACKAGING MATERIAL CO LTD