12results about How to "Avoid shadows" patented technology

The utility model discloses a zipper visual detection device capable of reducing detection errors, which relates to the technical field of zipper detection devices and comprises a detection table and a frame. According to the detection table, a supporting frame is arranged on the left side of the bottom face, conveying rollers are rotationally installed in the supporting frame, a guide roller frame is fixed to the top face of the detection table, the frame is installed on the right side of the top face of the detection table, machine bases are fixed to the upper side face and the lower side face in the frame, and defect detectors are placed in the machine bases; a detection unit is arranged on the left side face of the frame, and a light supplementing unit is arranged on the surface of the frame. According to the zipper visual detection device capable of reducing the detection errors, impurities such as dust on the surface of a zipper can be removed by adopting a matched dust sticking roller, so that the situation that the follow-up detection accuracy is affected due to impurity attachment is prevented, meanwhile, the angle of an illuminating lamp can be adjusted according to different detection conditions, and the detection error is reduced. And the accuracy of zipper detection can be improved by matching with a flaw detector.

The utility model discloses a display substrate and a display device. The display substrate comprises a substrate; the driving layer is positioned on one side of the substrate and is provided with a plurality of conductive bonding pads; the light absorption layer is located on the side, away from the substrate, of the driving layer, the orthographic projection of the light absorption layer on the substrate and the orthographic projection of the driving layer on the substrate are overlapped, the light absorption layer is provided with a plurality of first via holes corresponding to the plurality of conductive bonding pads, and the orthographic projection of the first via holes on the substrate and the orthographic projection of the corresponding conductive bonding pads on the substrate are overlapped; the light-emitting units are located on the side, away from the substrate, of the light absorption layer and electrically connected with at least part of the conductive bonding pads through the first via holes; the display substrate further comprises a light transmitting layer and a base material layer which are located on the side, away from the substrate, of the light absorbing layer and sequentially arranged in a stacked mode, the light transmitting layer and the base material layer are continuously distributed film layers, and the light transmitting layer is located between the adjacent light emitting units and located on the side, away from the substrate, of the light emitting units. The display substrate has low reflectivity and high transmittance at the same time, and the application scene is wider.

The application discloses a nano modification and high-density coating process for the surface of an enzyme-linked immunosorbent plate. The composition comprises an interface self-assembly bottom layer solution containing tannic acid and branched polyethyleneimine, and a dynamic gating functionalization buffer containing sodium tetraborate, D-mannitol and trehalose. The process first constructs a supramolecular bottom layer on a polystyrene surface, and then forms a boronic acid-mannitol gating interface without washing and drying. After the addition of an antibody, a competitive displacement reaction occurs between the Fc segment sugar chain and the boronic acid, the mannitol is displaced, and the directional high-density fixation of the antibody is realized. The application solves the problems of random direction and weak binding force of the antibody in the traditional physical adsorption, significantly improves the antibody loading capacity and detection sensitivity of the enzyme-labeled plate, and has good storage stability.

This utility model relates to the technical field of drainage devices for steel structure factory buildings, and particularly to a roof drainage system with a self-cleaning function, comprising: a gutter; a first filter plate installed in the gutter for intercepting debris; wherein the first filter plate divides the gutter vertically along the direction of gravity into: a receiving trough above the first filter plate and an external discharge chamber below the first filter plate; several filter holes opened on the first filter plate, one end connected to the receiving trough and the other end connected to the external discharge chamber; a first drain pipe, one end connected to the external discharge chamber and the other end extending towards the ground; a self-cleaning component for conveying debris in the receiving trough along the length of the gutter; a receiving box installed on the wall at one end of the gutter and connected to the receiving trough for receiving debris; by setting the first filter plate, debris and rainwater can be separated, preventing debris from clogging the first drain pipe, and debris on the first filter plate can be periodically removed to ensure the normal filtering operation of the first filter plate.

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 invention discloses a lens and a lamp. The lens is used for the lamp. The lamp comprises a light-emitting part, and the lens comprises a lens body. The lens body is arranged on the side, facing the ceiling, of the light-emitting part and is opposite to the ceiling in the first direction. In the first direction, the lens body comprises a first side wall face facing the light-emitting part and a second side wall face deviating from the light-emitting part. The second side wall surface is provided with a first light guide structure and a second light guide structure. The first side wall face is configured to refract light emitted by the light emitting part to the second side wall face, the first light guide structure can refract part of the light to the side, facing a ceiling in the first direction, of the lens body, and the second light guide structure can reflect part of the light to the peripheral side, in the second direction, of the lens body. The light intensity of the peripheral side of the lens body is larger than the light intensity of the side, facing the ceiling, of the lens body. According to the scheme, the shadow and overexposure phenomena of the ceiling above the lamp can be effectively avoided, and the light illumination efficiency and the illumination effect are improved.

The invention discloses an antimony-gold concentrate flotation antimony removal process, belongs to the technical field of ore flotation, and aims to solve the technical problem that the gold enrichment performance and antimony removal performance of antimony-gold concentrate flotation need to be further improved in the prior art. According to the method, a step-by-step interface regulation and control system composed of an arsenic directional collecting agent, an antimony selective collecting agent and a lead chelating dispersing agent is constructed, and interface substrate reforming, target phase interface recognition strengthening and terminal interface convergence are sequentially achieved in ore pulp, so that a flotation layering environment with gradient selectivity is formed; according to the technical scheme, the interface stability of associated impurities such as arsenic, antimony and lead can be weakened step by step while interface activation of gold particles is kept, and efficient purification of refractory gold concentrate is achieved.

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 relates to the technical field of vehicle accessories, and provides a lighting device, a seat and a vehicle. The lighting device comprises a main body, a light guide and a light source; a mounting cavity is formed in the main body, and the light source is mounted in the mounting cavity; the light guide is mounted on one side of the main body, the light guide comprises a first section and a second section connected with each other, and a guide channel is formed between the first section and the second section; the first section is located between the second section and the mounting cavity, light emitted by the light source is irradiated on the first section, and the light is conducted to the second section to provide illumination; one side of the main body away from the light guide is used for being mounted on the seat, and the guide channel is used for penetrating a corresponding safety belt of the seat. The light emitted by the light source is conducted to the second section away from a shielding area of the safety belt through the first section, so that the safety belt is prevented from shielding an illumination light path; the lighting device is mounted on the side of the seat, and the light emitting position of the light guide is lower than that of a conventional ceiling illuminating lamp, so that glare caused by direct light irradiation on the eyes is effectively avoided, and user experience is improved.

The utility model provides a three-dimensional imaging elder nursing accompanying elder, which comprises the following structures: a base, the top of the base is detachably clamped with a transparent spherical cover, and the base and the transparent spherical cover are combined to form a sphere structure; pins are welded to the left side and the right side of the bottom of each handle frame, torsional springs are clamped to the outer sides of the pins, and compared with the situation that a user holds a base of a spherical structure or a transparent spherical cover by hand and is inconvenient to slide off, the user can conveniently carry the product through the design of the handle frames; meanwhile, palm print smudginess caused when a user touches the transparent spherical cover is avoided.

This utility model relates to the field of LED linear light technology, and more particularly to an LED linear light that solves the problems of glare and shadow formation in existing LED linear lights, resulting in poor performance. An LED linear light includes a light board with several bulbs electrically connected to its bottom. The surface of the light board has a housing, inside which two U-shaped clamping plates are fixedly connected. The light board is slidably connected between the two clamping plates. Inside the housing, several vertically distributed anti-drop blocks are fixedly connected. Two support plates are slidably connected between the tops of two anti-drop blocks at the same height. Several diffuser blocks are fixedly connected between the two support plates. This utility model prevents glare and shadows, ensuring performance. Heat is conducted to the housing and heat sink via a thermal pad for heat dissipation, ensuring stable operation of the light board.

This invention provides a pixel array that can be illuminated by backlighting from a backlight source. The backlight source may include a two-dimensional array of light-emitting diodes (LEDs), with each LED placed in a corresponding cell. Different LEDs may have unique brightness levels based on the content of a given display frame. A driver integrated circuit (IC) can control one or more associated LEDs to have a desired brightness level. The driver IC may be formed in the active region of the backlight source. The driver IC may be arranged together in a daisy-chain group. Digital signals (including information such as addressing information) can be propagated through this group of driver ICs. To manage the thermal performance of the backlight source, the backlight source may include a thermally conductive layer and / or a heat sink structure. To improve the efficiency of the backlight source, the backlight source may include one or more reflective layers.