26results about How to "Avoid reflections" patented technology

The utility model relates to the technical field of film detection, in particular to a film defect detection device. The device comprises a film viewing cavity arranged in a darkroom, the film viewing cavity comprises a main cavity defined by baffles and a middle platform layer arranged in the main cavity, a light through hole is formed in the middle platform layer, a xenon lamp is installed at the top of an upper cavity so that light can irradiate a to-be-detected film at the light through hole, and a defect imaging curtain is laid at the bottom of a lower cavity so that the to-be-detected film can be detected. The shadow left by the thin film at the light through hole is received; light penetrates through the thin film, shadow is projected on the defect imaging curtain laid at the bottom of the lower cavity, due to the fact that the xenon lamp with higher light penetrating power is selected, slight deformation type defects of the thin film can be seen on the defect imaging curtain, the defects of an existing thin film defect observation mode are overcome, and the tiny and slight deformation type defects of the thin film can be seen.

The invention relates to the technical field of metal product processing quality detection, in particular to a surface defect visual detection method and system for metal product processing, and the method comprises the following steps: step 1, arranging a plurality of linear light sources above the surface of a metal product; 2, acquiring a multispectral image from a position directly facing the surface of the metal product by using a color industrial camera; 3, performing weighted average fusion to generate a fused image; step 4, carrying out adaptive histogram equalization enhancement on the fusion image after reflection suppression and carrying out noise filtering by applying Gaussian filtering; 5, extracting texture features from the enhanced image; step 6, dividing the image into a defect area and a normal area by using an adaptive threshold segmentation method; and step 7, classifying the segmented defect areas. And the support vector machine classifier is adopted to accurately classify the defects, so that reliable output of defect types and position information is ensured, and metal surface defect detection is more accurate and real-time.

The utility model relates to cleaning equipment technical field, concretely relates to a kind of positionable display screen support, including support column and display screen main body, adjustable inner support is slidably sleeved in the support column, the inner support top is fixed in display screen main body bottom surface by bolt, support column bottom rotatably sleeve joint is limit seat, the limit seat fixed sleeve is set on support cross bar, the support column of limit seat both sides rotatably sleeve is set on support cross bar, by positionable rotating support structure, after the operation of display screen main body is completed, by the way of pressing control button, after support column rotates to with two locking grooves alignment, control locking insertion rod is inserted into locking groove and is locked, and locking and canceling operation are more labor-saving and convenient, in the operation after meeting the display screen main body adjustable to backlight, avoid display screen main body reflection, also ensure the firmness of display screen locking when cleaning robot is cleaned.

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.

The application discloses a light guide assembly and an electronic device. The light guide assembly is used for the electronic device, and comprises a first light guide section, a second light guide section and a third light guide section. The first light guide section, the second light guide section and the third light guide section are sequentially connected. The first light guide section has an incident light side, and the third light guide section has an outgoing light side. In the thickness direction of the light guide assembly, the third light guide section has a height difference with the first light guide section. A reflective film is arranged on the opposite sides of the second light guide section in the thickness direction of the second light guide section. Or the reflective film covers at least the connection between the second light guide section and the first light guide section and the connection between the second light guide section and the third light guide section.

The application relates to a stacked packaging structure and a computing system, the stacked packaging structure comprising: a first substrate comprising a first surface and a second surface facing away from each other, the first surface being provided with first pads, the second surface being provided with second pads, and the first substrate being provided with first wirings; a plurality of first chips being welded to the first pads, the first chips being interconnected through the corresponding first pads and the first wirings; a second substrate comprising a third surface and a fourth surface, the third surface being provided with third pads, the fourth surface being provided with fourth pads, and the second substrate being provided with second wirings; a plurality of second chips being welded to the fourth pads, the second chips being interconnected through the corresponding fourth pads and the second wirings; and a ring-shaped interposer being arranged between the first substrate and the second substrate, and interconnecting the first substrate and the second substrate through the ring-shaped interposer. The signal integrity is improved, and the power consumption and warping are reduced.

This invention discloses a patterned substrate and its fabrication method, as well as an epitaxial wafer for a light-emitting diode (LED), relating to the field of semiconductor optoelectronic devices. The patterned substrate includes a substrate body, a metal reflective layer, and multiple pyramidal protrusions. The substrate body has a first surface and a second surface disposed opposite to each other; the metal reflective layer covers the first surface; the multiple pyramidal protrusions are uniformly distributed on the metal reflective layer; each pyramidal protrusion includes a first AlN layer and a SiO2 layer sequentially stacked on the metal reflective layer. Implementing this invention can improve the luminous efficiency of the LED.

The utility model discloses a double-sided packaged low-glare photovoltaic module, which comprises a substrate (1), and a current-conducting plate (2) and anti-glare glass (13) are sequentially arranged on the front surface of the substrate (1); grooves (3) which are uniformly distributed are formed in the front surface of the current-conducting plate (2), crystalline silicon battery pieces (4) are arranged in the grooves (3), and the crystalline silicon battery pieces (4) are electrically connected through the current-conducting plate (2); the side edge of the groove (3) protrudes out of the front face of the crystalline silicon battery piece (4), in the side edge of the groove (3) of the protruding part, the front face of the left side edge and the front face of the right side edge are each provided with a first light guide inclined face (5) inclining upwards, and the inner groove face of the upper side edge is provided with a second light guide inclined face (14) facing the front face of the crystalline silicon battery piece (4). According to the utility model, the reflection is reduced by hiding the electric connection parts of the crystalline silicon cells, and the light in the gaps of the crystalline silicon cells is reflected and utilized by utilizing the light guide inclined planes, so that the practicability is good.

The utility model discloses a lamp shade, car light and vehicle, the lamp shade of vehicle includes base piece and transparent piece, is provided with the light transmission hole on the base piece, is equipped with the shelter step on the base piece, the transparent piece sets up on the light transmission hole, the rim of transparent piece abuts on the shelter step, the transparent piece has the body part and the convex part of interconnection, and the convex part extends along from the center to the edge of transparent piece, the body part passes through the light transmission hole, and the light of the lamp pearl in the lamp shade transmits through the body part and base piece and irradiates to the outside, and the convex part abuts on the shelter step. The light directly irradiates on the shelter step after transmitting through the transparent piece, owing to the rim of shelter step and transparent piece abut, make the color of transparent piece and shelter step blend into one, avoid the light irradiation to the inner wall of base piece and leave the mark on the transparent piece, and then avoid the surface of lamp shade appears the phenomenon of reflection or bright strip, so that the user judges whether the car light is opened.

The invention relates to a camera support. The camera support comprises a support body and a light capturing structure, the support body is used for installing a camera, the support body is provided with an inwards-concave area used for avoiding the view field of the camera, and when the support body is installed on a windshield, the inwards-concave area is provided with a reflecting face facing the windshield; the light capturing structure is arranged on the reflecting surface, and the glossiness of the light capturing structure is smaller than 0.1 gloss unit under the 20-degree incident light test condition. Through the arrangement, the light capturing structure has extremely low glossiness, belongs to a low-reflection even non-reflection structure, and can effectively absorb light rays irradiated on the surface of the light capturing structure, greatly reduce the reflectivity of the light rays and prevent the light rays from being reflected back to a windshield from a reflecting surface; therefore, the condition that the reflected light is reflected to the lens of the camera again through the windshield is avoided, and the definition and accuracy of the image collected by the camera are improved.

This invention discloses a cement concrete pavement structure for use in vehicular roads, relating to the field of road construction technology. The cement concrete pavement structure includes: a subbase layer composed of graded steel slag; an intermediate base layer composed of cement-stabilized steel slag; a sand cushion layer composed of sand; and a surface layer composed of cement concrete. The subbase layer, intermediate base layer, sand cushion layer, and surface layer are laid from bottom to top. The subbase layer is laid on the roadbed, the intermediate base layer is laid on top of the subbase layer, the sand cushion layer is laid on top of the intermediate base layer, and the surface layer is laid on top of the sand cushion layer. This invention provides a cement concrete pavement structure that can improve the strength of the pavement structure and environmentally treat waste steel slag, thereby improving resource utilization.

This utility model relates to the field of cartoning machine technology, and more particularly to a medicine box positioning and error prevention device for a cartoning machine. The medicine box positioning and error prevention device for a cartoning machine includes a support frame, a control panel, a warning light, a connecting frame, and a vision sensor. Each of the two support frames has symmetrically distributed mounting holes on one side. The control panel is fixedly connected to the left side of one support frame, and a warning light is fixedly connected to the top of the control panel. A connecting frame is fixedly connected between the tops of the two support frames, and a vision sensor is fixedly connected through the middle of the connecting frame. The vision sensor is electrically connected to the control panel. This utility model uses a vision sensor combined with an image recognition algorithm to accurately determine whether a medicine box exists, whether its orientation is correct, and whether it is damaged, tilted, or overlapped. A laser scanner non-contactly detects the height, width, and position of the medicine box to ensure size matching.

The application provides an integrated quantum bit output link and relates to the technical field of input / output device links. The application aims to solve the problem that the space is limited during quantum bit transmission, and efficient heat treatment is difficult to achieve. The integrated quantum bit output link comprises three circulators, a load, a Josephson parametric amplifier and a connector. The load is arranged on the three circulators and is used for absorbing reverse transmission signals. The Josephson parametric amplifier is internally provided with the connector, and the Josephson parametric amplifier is connected with the three circulators through the connector. The integrated quantum bit output link can maintain good performance in a super low temperature environment, achieves the effects of high integration, high heat conduction and magnetic shielding, is easy to assemble and mass-produced, and effectively reduces the volume of the integrated quantum bit output link.

This invention discloses a path planning method for a three-pin impedance tuner, belonging to the field of impedance matching technology in microwave energy applications. The method involves calculating the optimal depth of the three pins based on the measured reflection coefficient at the port when the load changes; then, based on the calculated optimal pin depth, implementing a low-reflection adjustment strategy to adjust the pin depth, avoiding large reflections during the adjustment process. This method achieves good matching by adjusting two pins, while avoiding large reflections that could damage the microwave source and affect system stability. It requires no complex parameter measurements, is fast and accurate, and is applicable to three-pin rectangular waveguides of various specifications. This invention effectively solves the problems of existing three-pin impedance tuners that do not consider reflection changes during pin adjustment and have complex calculation processes.

A power generation and injection lock-in combining system and adjustment method are disclosed, belonging to the field of radio frequency and microwave power technology. The power generation and injection lock-in combining system includes an external signal source, N power units, a power combining network, and a dynamic adjustment module. The external signal source is connected to the output terminals of the N power units, providing a unified reference signal and injecting the reference signal into each power unit. The power combining network is connected to the output terminals of the N power units, superimposing the output signals of the N power units into a single signal. One part of this signal is used as a high-power output, and the other part is sent to the dynamic adjustment module through a directional coupler. The dynamic adjustment module performs real-time detection of the output of the power combining network through the directional coupler and the outputs of the N power units through the directional coupler, and adjusts the power and phase of each power unit according to the real-time detected power and phase to ensure that the power and phase of each power unit are consistent.

The utility model discloses a kind of tensile, wear-resistant, anti-winding reel cable for mobile equipment, including the insulating wire core (2) of flat outer sheath (1) and its inside, it is characterized by: from cross section, anti-tensile steel wire (10) is sequentially arranged in outer sheath (1) from left to right, four insulating wire cores (2), signal wire core (3) and anti-tensile steel wire (10), wherein four insulating wire cores (2) and signal wire core (3) have certain bending in longitudinal direction, two anti-tensile steel wires (10) are straightened in longitudinal direction. Insulating wire core (2) and signal wire core (3) adopt bending design, when cable is subjected to tension, insulating wire core (2) and signal wire core (3) will only use bending deformation to offset tensile deformation, all tensile stress is borne by steel wire. Signal wire can bear the role of signal transmission, data transmission, when cable laying, signal wire does not need to be additionally designed.

This invention relates to the field of wafer inspection technology, specifically to a semiconductor wafer surface defect inspection device and method, comprising an inspection shell and a transport shell; a stage is disposed within the transport shell, and a pick-up device, a camera, a spotlight, a first rotating ring, a support, and a first driving unit are disposed within the inspection shell; the pick-up device is disposed within the inspection shell and is used to remove the semiconductor wafer from the stage, rotating around the axis of rotation of the stage's movement direction, with each rotation angle being 180 degrees; the camera is disposed on one side of the pick-up device; the spotlight has a ring structure and is sleeved around the camera; the first rotating ring is rotatably disposed within the inspection shell along the axis of rotation; the support is fixedly disposed on the first rotating ring, and the camera is disposed on the support; the first driving unit is disposed on one side of the first rotating ring. This invention improves the accuracy and reliability of double-sided inspection of semiconductor wafers.

This utility model relates to a dust sensor that reduces stray light. The dust sensor includes a housing, a light-emitting element, a light-receiving element, and a circuit board. The housing has a partition wall dividing it into a circuit board area and a detection area. A dust passage is located within the detection area. The circuit board is mounted in the circuit board area. The partition wall has light-emitting holes and light-receiving holes corresponding to the light-emitting element and the light-receiving element, respectively. A gap is maintained between the light-emitting element and the light-emitting hole. The circuit board area also has a light-shielding plate extending vertically downward from the housing, corresponding to the light-emitting element. The light-receiving element is embedded in the light-receiving hole. Within the detection area, vertically penetrating light-shielding walls are provided on both sides of the light-receiving element, connecting to the partition wall. The ends of the light-shielding walls extend towards the dust passage. The gap prevents stray light inclined to the optical axis of the light-emitting element from entering the detection area. The light-shielding walls also protect the light-receiving element. This utility model can reduce stray light without the need for a lens, thus reducing assembly costs and difficulty, and improving assembly efficiency.

This utility model discloses a crack-resistant cold recycled pavement structure, belonging to the field of recycled pavement technology. Key technical features include a supporting base course, a cold recycled base course on top of the supporting base course, a crack-resistant transition layer on top of the cold recycled base course, a drainage bonding layer on top of the crack-resistant transition layer, and a functional surface layer on top of the drainage bonding layer. Through the combined design of the crack-resistant transition layer, fiberglass grid, and emulsified asphalt bonding layer, the pavement's crack resistance is significantly improved. The crack-resistant transition layer has good flexibility, buffering temperature stress and vehicle load impact. Furthermore, the fiberglass grid, embedded in the center of the crack-resistant transition layer, utilizes its high strength to disperse stress at the crack tip, preventing upward reflection of base course cracks. Combined with the emulsified asphalt bonding layer, it enhances the bonding force between structural layers, preventing interlayer slippage and the generation of new cracks, thus reducing the overall occurrence of reflective and longitudinal cracks.

The present application belongs to the technical field of wave-absorbing materials, and particularly relates to a composite sheet electromagnetic wave-absorbing material, a preparation method and application thereof. The composite sheet electromagnetic wave-absorbing material comprises, from inside to outside, a high-dielectric two-dimensional layered material, a low-dielectric sheet material and a magnetic sheet material. The high-dielectric two-dimensional layered material is a MXene material, and the low-dielectric sheet material is aluminum fluoride. The present application uses sheet structure materials to build an electromagnetic wave-absorbing wall, and the composite sheet structure has better absorption performance for the forward electromagnetic wave. At the same time, the low-dielectric sheet material wraps the high-dielectric two-dimensional layered material to build an electromagnetic wave-absorbing wall, which can prevent electromagnetic wave reflection and enhance impedance matching. In addition, combined with the outermost magnetic sheet material, the magnetic loss can be enhanced, and the wave-absorbing capacity of the material can be greatly improved.

The utility model discloses a composite printing machine capable of positioning printing, which belongs to the technical field of composite printing machines and is characterized by comprising a composite printing machine body, detection mechanisms are welded on two sides of the top of the composite printing machine body, and stretching mechanisms are welded on the front side and the rear side of the composite printing machine body. The detection mechanism captures a pattern or a mark point on a printing material in real time through a detection camera, in combination with an image processing algorithm of a special vision controller, accurate positioning of the pattern is achieved, an illuminating lamp provides uniform illumination, light reflection or shadow interference is avoided, it is ensured that the camera can still perform clear imaging in the high-speed movement process, and the detection efficiency is improved. An unwinding roller and a winding roller in the stretching mechanism are independently driven by a first motor and a second motor, the speed difference is adjusted by combining a gear transmission speed reducer, and when the detection mechanism finds that the pattern spacing is small, the material is stretched by increasing the speed of the winding roller, so that the spacing is recovered to a standard value.

The application discloses a kind of fair-faced concrete wall crack repair methods, comprising: preparation bonding slurry, the bonding slurry includes epoxy resin base fluid, curing agent and nano calcium powder filler;The bonding slurry is full irrigation in the crack of fair-faced concrete wall;Along the length direction of the crack, the accommodation groove is opened in the outer side of the fair-faced concrete wall, the position of the accommodation groove corresponds to the position of the crack;Lay anti-cracking mesh on the groove bottom of the accommodation groove, the opposite sides of the anti-cracking mesh are overlapped on the opposite sides of the crack;Fill the fine aggregate concrete layer in the accommodation groove, anti-cracking agent and anti-cracking fiber are mixed in the fine aggregate concrete layer;Coat elastic protective layer on the outer side of the fine aggregate concrete layer.The application solves the existing repair method of fair-faced concrete wall surface, and the problems that the repair effect is not durable and secondary cracking is prone to occur.

The utility model relates to the technical field of photovoltaic cell pieces, in particular to a photovoltaic cell piece with a multilayer anti-ultraviolet protection structure, which comprises a cell piece main body, a multilayer anti-ultraviolet protection film is arranged on the upper surface of the cell piece main body, and an anti-reflection layer is arranged on the lower surface of the cell piece main body. A sealing frame is arranged around the battery piece body, and a blocking layer is arranged on the inner side of the sealing frame. The multi-layer anti-ultraviolet protection film comprises a base material layer, an ultraviolet absorption layer and an ultraviolet reflection layer, the anti-reflection layer is a nanoscale titanium dioxide coating, and the blocking layer on the inner side of the sealing frame is made of a high-molecular polymer material. The solar cell can effectively absorb and reflect ultraviolet rays, prevent the ultraviolet rays from directly irradiating the surface of the cell, delay the aging of the surface material of the cell, prolong the service life of the cell, improve the power generation efficiency, prevent the damage of dust, water vapor and the like to the cell, and improve the weather resistance and reliability of the cell.

The application discloses a sunshade curtain assembly, a glass assembly and a vehicle. The sunshade curtain assembly comprises a first curtain cloth, a second curtain cloth and a light-emitting component. The second curtain cloth is arranged in a laminated manner with the first curtain cloth. The light-emitting component is fixed between the first curtain cloth and the second curtain cloth, and the light rays emitted by the light-emitting component are emitted to the interior of the vehicle through the second curtain cloth. A light-emitting delay structure is arranged on the emission path of the light rays. The light-emitting delay structure can emit light after being excited by the light rays emitted by the light-emitting component, and can still emit light for a period of time after the light-emitting component stops working, thereby prolonging the light-emitting time of the sunshade curtain assembly, shortening the working time of the light-emitting component under the condition that the total light-emitting time is determined, prolonging the service life of the light-emitting component, avoiding light ray mutation, creating a soft light transition, and meeting the use scene requirements of extreme environments such as high temperature and high humidity.

The application provides a display panel and a display device. The display panel comprises a substrate, a display function layer arranged on one side of the substrate, and a light extraction layer located on the side of the display function layer away from the substrate. The light extraction layer comprises a first light extraction layer, a second light extraction layer and a third light extraction layer arranged in sequence in the direction away from the substrate. The refractive index of the second light extraction layer is greater than the refractive index of the first light extraction layer and the refractive index of the third light extraction layer. The display panel provided by the application has a high refractive index of the second light extraction layer, which is beneficial to improving the microcavity effect and the light extraction efficiency. The refractive index of the first light extraction layer and the third light extraction layer is low, which is beneficial to reducing the refractive index difference between the display panel and other film layers, avoiding total reflection caused by the mismatch of the refractive index, improving the light extraction efficiency and power consumption, and improving the performance of the display panel.

The utility model discloses a display device capable of switching transmission and reflection. The display device comprises a self-luminous display panel, a quarter-wave plate and a liquid crystal display panel which are sequentially arranged, the liquid crystal display panel comprises an opposed substrate, an array substrate and a liquid crystal layer, first-color bistable liquid crystal molecules and first-color dye liquid crystal molecules are arranged in the liquid crystal layer, a metal wire grid polaroid and a plurality of pixel electrodes are arranged on the array substrate, a 45-degree angle is formed between the light-transmitting axis of the metal wire grid polaroid and the fast and slow axis of a quarter-wave plate, and a 45-degree angle is formed between the light-transmitting axis of the metal wire grid polaroid and the fast and slow axis of the quarter-wave plate. A common electrode matched with the pixel electrode is arranged on the opposite substrate; the liquid crystal display panel is provided with a plurality of first pixel units, the first pixel units are provided with first color pixel units, the opposite substrate is provided with an electrochromic layer and a color changing driving electrode in the area corresponding to the first color pixel units, and the electrochromic layer can be switched between a black state and a transparent state. Switching between transmission and reflection can be realized, and the self-luminous display panel is prevented from reflecting ambient light.