53 results about "Illumination angle" patented technology

This invention discloses a fishway illumination-based fish-attracting experimental device, belonging to the field of fish-attracting experimental technology. It includes: an experimental water tank, positioned above a reservoir, divided into an upstream, midstream, and downstream section, with an adaptation zone in the downstream section; a support frame erected above the midstream section, covered with a black cloth; and an illumination mechanism located on the upper wall of the midstream section, comprising LED lights and connecting components. Through the structural design of the connecting components, this invention allows for multi-dimensional flexible adjustment of the LED lights' horizontal position, illumination angle, and vertical height, breaking the limitations of fixed illumination modes in traditional experimental devices. The position and angle of the illumination can be adjusted according to experimental needs, and the adjustment operation is simple and convenient. It enables multi-parameter illumination research, allowing for quantitative study of the impact of different illumination conditions on fish migration behavior, meeting the needs of different experimental scenarios, and providing support for personalized fish-attracting research.

This utility model discloses an intelligent lamp base with adjustable height and illumination angle, comprising a base plate, a plurality of support rods fixedly connected to the upper surface of the base plate, a bearing plate fixedly connected to the upper surface of the support rods, a connecting column fixedly connected to the upper surface of the bearing plate, a threaded screw rotatably connected to the inner surface of the connecting column, a slider threadedly connected to the outer surface of the threaded screw, a rotating block fixedly connected to the top end of the threaded screw, and two connecting shafts fixedly connected to the slider. Through the arrangement of the threaded screw, slider, and rotating block, when the threaded screw is released, the slider and its components can be moved by operating the rotating block, thereby enabling adjustment of the height of the intelligent lamp connected to the overall structure. This allows the height of the lamp to be changed according to the user's needs, increasing the overall practicality of the structure.

The utility model discloses a kind of split reading wall lamps, including decorative shell, the lateral outside of decorative shell is fixedly connected with cross bar, cross bar is fixedly connected with vertical pole, the top of vertical pole is fixedly connected with mounting seat, the lateral outside of mounting seat is fixedly connected with connecting ring, the lateral outside of connecting ring is equidistantly fixedly connected with connecting rod, the lateral outside of connecting rod is fixedly connected with lampshade, controller is integrated in the inside of mounting seat, horizontal groove is set in the inside of cross bar, vertical groove is set in the inside of vertical pole, the inside of horizontal groove and vertical groove is provided with wire, one end of wire is electrically connected with mounting seat. The utility model is provided with mounting bracket structure with U-shaped slot and waist hole, to realize the angle fine adjustment after installation conveniently, accurately ensure that lamp body and desktop are perpendicular projection, compared with traditional fixed support lamp, it has high installation fault tolerance, adjustment is convenient without secondary disassembly, ensure optimal illumination angle.

This utility model relates to the field of outdoor spotlight technology and discloses a multi-angle adjustable outdoor spotlight, including a spotlight body and a spotlight support frame. The spotlight body is provided with a first connecting part, and the spotlight support frame is provided with a second connecting part corresponding to the first connecting part. The first connecting part is provided with a first connecting tooth on the side facing the second connecting part, and the second connecting part is provided with a second connecting tooth corresponding to the first connecting tooth on the side facing the first connecting part. A locking member is provided on the second connecting part. By providing a first connecting part on the spotlight body and a second connecting part on the spotlight support frame, the first connecting part and the second connecting part are connected to each other through the first connecting tooth and the second connecting tooth, thereby realizing multi-level adjustment of the spotlight body, which facilitates the adjustment of the illumination angle of the spotlight body. At the same time, the locking member locks the spotlight body after adjustment, thereby realizing multi-angle adjustment of the spotlight body.

The present application relates to the technical field of computer vision, and particularly relates to an alloy cutter wear prediction method and system based on machine vision. The alloy cutter wear prediction method based on machine vision comprises the following steps: setting two groups of light sources with different illumination angles, defining the two groups of light sources as reference light sources and distinguishing light sources respectively, and making the illumination directions of the two groups of light sources form a preset included angle; before each new alloy cutter is put into use, controlling the reference light source to irradiate the alloy cutter alone, collecting a reference image of the alloy cutter in a non-worn state as an individual initial baseline image of the alloy cutter and storing the individual initial baseline image in association with an alloy cutter identifier. Through the machine vision technology, individual initial baseline comparison and double-source differential imaging, the present application realizes separation of a wear area and an interference area and online closed-loop monitoring, thereby improving the accuracy of alloy cutter wear identification.

The invention relates to a camera (130) for detecting objects (192), the camera (130) comprising (a) an illumination device (240) for illuminating an object (192) which is located in an object plane (230a) of the camera (130); and (b) a camera sensor (285) for capturing an image of the object (192) illuminated by the illumination device (240). The illumination device (240) has (a1) a first illumination structure (350) with a plurality of first light sources (351) for illuminating the object (192) with a first illumination light (352) at a first illumination angle; (a2) a second illumination structure (360) having a plurality of second light sources (361) for illuminating the object (192) with a second illumination light (362) at a second illumination angle that is different from the first illumination angle; and (a3) an optical lens array (354) with a plurality of individual lenses (355) for collimating the first illumination light (352) and for collimating the second illumination light (362). Each individual lens (355) is assigned at least a first light source (351) and each individual lens (355) is assigned at least two second light sources (361). The invention further relates to a camera system (125) with two such cameras (130) and an automated placement machine having at least one such camera (130).

The utility model discloses a rotatable grid lamp including base and lamp body component, and the both ends of base are provided with connecting seat respectively, the lamp body component is long type structure, and the both ends of lamp body component are provided with lamp body plug respectively, and the lamp body component can be loaded to between two connecting seats, and the lamp body plug can rotate with connecting seat, the end face recess of connecting seat and lamp body component is provided with the circular groove of cross section is circular, and the lamp body plug extends to the inner wall cooperation of circular groove and is provided with the sliding fit structure of cooperation with the inner wall of circular groove, and the extension length of sliding fit structure is less than the depth of circular groove relative to the side of lamp body plug, so that sliding fit structure can be completely put into circular groove, through above -mentioned structure, make lamp body component can rotate relative to connecting seat, satisfy the requirement of illumination angle adjustment, and the rotating cooperation mechanism of connecting seat and lamp body component hides between connecting seat and lamp body plug, is not easy to gather dust, and the mechanism is simple, and the reliability is high.

A spatial image simulation method includes the following steps: constructing a DMD-based optical system simulation model; uniformly sampling the angle and intensity of illumination light within the illumination numerical aperture, and selecting a simulation area; for each illumination angle, simulating the complex amplitude distribution of the micromirror in the open state and the complex amplitude distribution of the micromirror in the closed state; obtaining the interference data of the micromirror at the entrance pupil plane for each illumination angle; obtaining the spatial frequency spectrum at the exit pupil plane for each illumination angle; simulating the corresponding light intensity distribution based on the complex amplitude distribution for each illumination angle, and superimposing the light intensities corresponding to all illumination samples to obtain the final light spot result. Based on the actual working scenario of the DMD, and considering that the tilt angle of the DMD micromirrors has a significant impact on its diffraction, the introduction of various tilt-induced phase differences and tilt factors results in more accurate simulation effects.

This invention discloses a cockpit lighting dimming test method and system based on multi-sensor fusion, belonging to the field of aircraft lighting testing technology. This invention solves the problem that existing methods cannot meet the dimming test requirements of aircraft cockpit lighting. By constructing a test scenario, it uses brightness acquisition equipment and multiple sensors to collect lighting and physiological data within the aircraft cockpit. A decision tree model is used to perform cluster analysis on the data to obtain the pilot's corresponding reaction label. Based on the pilot's physiological reaction, it determines whether the current lighting conditions meet the pilot's requirements, thereby determining whether the dimming test requirements are met. Compared to observing light intensity or illumination angle with the naked eye, the above operation not only ensures the effectiveness of the cockpit lighting dimming test method but also improves its accuracy, thus helping to make better dimming decisions based on current lighting conditions.

The utility model discloses a kind of panoramic lighting lamps with flexible anti-falling bionical lamp petals, including lamp pole, the upper and lower sides of the lamp pole are respectively provided with lamp body and base;The lamp body includes: fixed seat fixed in the top of lamp pole, the lower of the fixed seat is equipped with the sliding base along the sliding of lamp pole;Bionical lamp pet device, the bionical lamp pet device includes at least two adjustable lamp petals, the end of each lamp pet is connected with the outer periphery of the sliding base by hinged member, adjusting assembly is equipped between the inner side middle section of the lamp pet and the outer wall of lamp holder, for supporting the opening angle of lamp pet;Light source module, be in lamp pet, for providing illumination.The utility model belongs to the technical field of lighting lamp, specifically provides a kind of for solving the defect that lighting angle is fixed in prior art, cannot be flexibly adjusted according to scene light domain.

This invention relates to an adjustment device for facilitating the rotation of a stage light, comprising a bracket and a connecting rod. The main body of the light fixture is rotatably mounted on the bracket, and the connecting rod extends from the head to the bottom of the main body of the light fixture, surrounding a portion of its periphery. A gap exists between the main body of the light fixture and the connecting rod to facilitate the operator's grip and operation. When it is necessary to adjust the illumination angle of the stage light, the main body of the light fixture can be rotated relative to the bracket by operating the connecting rod, greatly reducing the adjustment effort and effectively increasing the flexibility and efficiency of operation.

This utility model discloses a 180-degree upward illumination light source for a lamp, comprising: an upper lamp plate, with multiple upper light-emitting groups installed above the upper lamp plate; each upper light-emitting group includes a first mounting profile fixed above the upper lamp plate, multiple first LED light sources mounted on the first mounting profile, multiple 180-degree diffusing lenses spaced apart above the first mounting profile, and a fixing mechanism on the first mounting profile for fixing the 180-degree diffusing lenses to the upper lamp plate. Compared with the prior art, this invention can form a 180-degree range for the upward illumination angle of the lamp.

This invention provides an image inspection system and method for improving inspection accuracy. One embodiment of the image inspection system includes an illumination condition determination unit, an optical system, and a determination unit. The illumination condition determination unit determines illumination conditions, including the wavelength spectrum of light illuminating the object and the illumination angle, based on the object to be inspected. The optical system is configured to irradiate the object with light having a wavelength spectrum corresponding to the illumination conditions at an angle corresponding to the illumination conditions. The determination unit determines whether the shape of the object is acceptable based on image data of the object captured using light irradiated by the optical system.

This invention discloses a wafer surface defect detection system and method based on a high-speed line scan camera, belonging to the field of wafer defect detection technology. It includes: an illumination system for providing adjustable bright-field illumination and illumination angle, and forming adjustable-size line spots on the wafer surface through a line spot generation device; a wafer scanning assembly including a stage for supporting the wafer and a displacement control assembly for driving the stage movement; an imaging system including a bright-field imaging assembly; a high-speed line scan camera for high-speed scanning and imaging of the signals collected by the imaging system, and balancing the signal-to-noise ratio, dynamic range, and detection resolution through a programmable pixel merging function; and a control system for coordinating and controlling the various system components and achieving parameter optimization and online adaptive calibration. This invention can achieve high-resolution, high-sensitivity wafer surface micro / nano defect detection while ensuring high detection speed.

This invention relates to the field of power plant negative meter layer lighting technology and discloses a lighting device, including a base, a lighting lamp, and an adjustment component. The lighting lamp is mounted on the base. The adjustment component includes a guide groove, a sliding rod, a connecting rod, and a locking element. The guide groove is formed on the side of the base. The sliding rod is slidably disposed in the guide groove. One end of the connecting rod is fixedly sleeved on the sliding rod, and the other end of the connecting rod is hinged to the lighting lamp via a damping hinge. The locking element is used to lock the relative position of the sliding rod and the guide groove. When the sliding rod slides along the guide groove, it drives the lighting lamp to move through the connecting rod to adjust the height of the lighting lamp. The lighting lamp also rotates relative to the connecting rod through the damping hinge to adjust the illumination angle of the lighting lamp, realizing dual adjustment of the lighting lamp height and illumination angle, overcoming the defect that the illumination angle of existing fixed lighting lamps is difficult to adjust after installation.

Ceramic body defect detection device (1000, 2000) configured to detect the presence of a defect on the outer surface of a ceramic body (1), the device comprising: a table (T) designed to accommodate a ceramic body (1) as the target for inspection; an image acquisition unit (110) configured to capture an image of a target area as at least a part of a target surface of the ceramic body (1) placed on the table (T) in a normal direction to the target area and to generate image acquisition data; one or more illumination units (115, 120, 130) comprising four or more illumination elements (116, 121, 131) configured toto illuminate the target area with light at an identical angle of illumination in different directions arranged at equal angular intervals around the image acquisition unit (110); an image generation unit (230) configured to generate image data for determining the presence of a defect in the target area based on the image data generated by the image acquisition unit (110); and a defect detection unit (240) configured to determine the presence of a defect in the target area based on the image data, wherein an illumination control unit (220) is configured to switch the plurality of illumination elements (116, 121, 131) on and off sequentially, and the image acquisition unit (110) is configured to take an image of the target area.when each of the multiple lighting elements (116, 121, 131) is switched on, to generate multiple pieces of image data and the determination image generation part (230) is configured to generate minimum luminance image data in which a minimum value of luminance values ​​of the multiple pieces of image data at an identical pixel position of each of the multiple pieces of image data is set as a luminance value at the identical pixel position, and then to generate the determination image data based on the minimum luminance image data; or the determination image generation part (230) is configured to generate maximum luminance image data in which a maximum value of luminance values ​​of the multiple pieces of image data at an identical pixel position of each of the multiple pieces of image data is set as a luminance value at the identical pixel position,and then to generate the investigation image data based on the maximum luminance image data.

The utility model discloses a sighting photography support which comprises a carrying table, a threaded column vertically installed on the upper surface of the carrying table, a bottom support fixedly connected to the bottom of the carrying table and self-locking type telescopic supporting legs installed at the bottom of the bottom support at equal intervals in the circumferential direction, and a warning assembly is installed at the bottom of the carrying table. The threaded groove is formed in the lower surface of the carrying table, a photographer attaches the supporting ring to the bottom of the carrying table, the locking piece penetrates through the mounting base to be fixed to the bottom of the carrying table, and the assembling process is simple; a sleeve is movably arranged outside the self-locking shaft bracket at the bottom of the supporting ring, a strip-shaped laser lamp is fixedly connected to the surface of the sleeve, the sleeve is rotated relative to the self-locking shaft bracket according to the working requirement of a photographer, the sleeve at the designated position drives the strip-shaped laser lamp to change the illumination angle, and emitted laser beams irradiate the ground of the working area of the photographer. The device has good isolation and warning effects, irrelevant personnel on site cannot touch photographers by mistake, and the shooting effect is improved.

This utility model relates to a lighting fixture fixing mechanism for a production workshop, including a workshop platform, a lighting lamp, and a lighting angle adjusting component. The lighting angle adjusting component is installed on the top of the workshop platform, and the lighting lamp is installed on the surface of the lighting angle adjusting component to achieve lighting lamp angle adjustment. The lighting angle adjusting component includes a fixing ring, a ring platform, and a positioning component. The positioning component fixes the ring platform. Specifically, rotating the handrail can drive the connecting rod to swing, which can pull the slider to move on the sliding rod and compress the spring. At this time, the push plate at the top of the slider is not in contact with the ring platform, and the ring platform can be rotated and adjusted. After adjusting the position, releasing the handrail causes the arc surface of the push plate to press against the surface of the ring platform under the action of the spring. The surface of the ring platform is provided with a wear-resistant ring layer to enhance friction, and a protective plate is provided to guide the movement of the slider and protect the spring. The cooperation between the handrail and the connecting rod achieves a labor-saving effect.

The present application belongs to the technical field of food microorganism detection, and discloses a food microorganism colony intelligent identification and counting system based on deep learning; image data of different illumination angles of a culture dish is acquired, a meniscus transition zone is accurately identified, and the culture surface is divided into a central flat area and an edge meniscus area. A three-dimensional meniscus surface model is constructed based on photometric stereo method, a refraction offset is calculated to realize distortion correction, and brightness normalization is realized through Fresnel reflection analysis. An adaptive segmentation strategy is adopted for different areas, a position-aware attention mechanism based on radial distance coding is introduced, and the recognition effect is optimized by dynamically adjusting the lighting parameters to accurately process the cross-area colonies. The present application realizes high-precision colony identification and counting in the whole area of the culture dish, and improves the integrity and reliability of microorganism detection.

This invention discloses a detection method and system for detecting tire defects, comprising the following steps: acquiring original image sequences of the tire under four different illumination angles; calculating the normal vector data N and albedo data ρ of the target surface based on the original image sequence using a photometric stereo algorithm and a preset light source direction matrix L; constructing a feature image containing three independent physical dimensions based on the normal vector data N and albedo data ρ: a first feature map representing macroscopic geometric deformation, a second feature map representing the spectral properties of the material, and a third feature map representing microscopic texture deviation; merging the first, second, and third feature maps into multi-channel image data, and using it as input data for training or inference of a deep learning model to output whether the tire has defects and the type of defects; this invention constructs high signal-to-noise ratio input data to determine whether the tire has defects.

The utility model relates to building component accessory technical field especially with light self -regulating photovoltaic curtain wall, the utility model provides a with light self -regulating photovoltaic curtain wall, solved the inconvenient angle adjustment of photovoltaic curtain wall in the prior art, and the technical problem that photovoltaic board is easy to damage. With light self -regulating photovoltaic curtain wall, including the fixed frame of installation in building, the fixed frame is provided with curtain wall subassembly, the curtain wall subassembly includes photovoltaic board, through setting up sensor and controller, and sensor can detect the illumination angle, and the parameter detected by sensor is received after controller, and the controller controls the drive mechanism work according to the parameter detected by sensor, makes photovoltaic board directly opposite sunlight, thereby make photovoltaic board have better light -receiving effect. The angle of photovoltaic board is automatically regulated, and manual operation is not needed, and the labor intensity of operating personnel is reduced.

The utility model discloses a kind of light regulation devices for Dendrobium huoshanense, applied in Dendrobium planting field, including fixed column, the surface of fixed column is fixed with lampshade, the inner wall cover of lampshade is equipped with glass plate, the surface of fixed column is rotatably connected with rotating ring;The utility model makes gear ring drive first gear to rotate by rotating rotating ring, first gear rotation drives second gear to make screw rod rotate, screw rod rotation makes telescopic link drive lamp head to move, cooperate lampshade, to reach the purpose of adjusting illumination range, reduce use cost, improve practicality and applicability, the utility model is by moving pull block and makes the clamping rod and adjusting hole disengage clamping, after adjusting lamp head to the angle required, loosen pull block, clamping rod is clamped with adjusting hole under the action of spring, its fixed mode, it can reach the purpose of facilitating the adjustment of illumination angle, reduce workload, improve the efficiency of adjustment.

This invention discloses an online multi-angle colorimeter, belonging to the field of colorimeter technology. Its key technical features include: a light source module containing multiple LED light sources arranged at preset angles towards the measurement area; a receiver module positioned at a fixed angle to receive reflected light signals; an optical system connecting the light sources and the receiver module, guiding the light path and filtering out non-measured light; a data processing unit electrically connected to the receiver module, used to convert light signals and calculate color difference values; a housing for fixing the modules and providing a non-contact measurement gap; preferably, the illumination angle includes multiple specific angles, and the receiver module is configured to receive light at a single angle; a height compensation device is provided inside the housing; the optical system includes a beam splitter prism and a filter group; a communication module is included; the LED light sources employ a uniformly distributed LED array; an automatic calibration module is included; and the housing uses a NEMA 4 protection rating enclosure. This invention enables non-contact online measurement, improving measurement efficiency and automation.

The application discloses a physical-based Fourier ptychographic light source pose correction method. The low-resolution image obtained through the Fourier ptychographic light path is affected by the pose deviation of the LED lamp plate in the system, thereby affecting the reconstruction quality. The application firstly constructs a physical model of the bright field to dark field boundary of the captured image for the microscope used, collects a group of low-resolution images of empty slides, screens out transition images with bright-dark boundaries, and calculates the bright-dark field boundary information of the transition images and the unbiased transition images generated by the model to solve the full pose parameters (including the distance from the sample, two orthogonal lateral displacements, the in-plane rotation angle and two tilt angles) of the misaligned LED array. The illumination angle can be accurately corrected, thereby ensuring the accuracy and uniformity of the illumination effect. It is verified through experiments that the application achieves good correction effect in practical application and enhances the robustness of the Fourier ptychographic reconstruction system to the light source position deviation.

A lighting system includes a plurality of lights, each light coupled to an actuator configured to orientate the corresponding light to an area of interest ("AoI"). At least one camera module selectively captures image data of a region that includes the AoI. A control system is configured to identify the AoI and instruct the actuators to orient the plurality of lights toward the AoI. The control system is further configured to assign each of the plurality of lights as either prioritized lights or deprioritized lights based, at least in part, on at least one of a caregiver location relative to the AoI or an angle between the prioritized light and the AoI.

This application provides a method, system, device, and medium for visual inspection of workpiece surface scratch recognition, belonging to the field of visual inspection technology. It involves acquiring multiple original images with different polarization directions, determining the Stokes vector under different illumination angles, and extracting the total intensity image, polarization degree image, and polarization angle image. These images are then normalized and channel-overlayed to obtain a multimodal feature image under the same illumination angle. A deep feature fusion network is constructed, using each multimodal feature image as input, and a convolutional neural network is used to extract spatial feature maps for each illumination angle. A spatial attention mechanism is used to enhance the response of scratch edges in each spatial feature map. Adaptive weighted fusion is then performed on all enhanced spatial feature maps to generate a fused feature map, which is used to identify and mark the weak scratch areas on the workpiece surface. Using the scheme of this application, high-sensitivity detection of weak scratches on highly reflective workpiece surfaces can be achieved.

Method for operating a lighting device (10) for a vehicle (1) comprising at least one headlight with a plurality of lighting elements (11, 36), wherein the light intensity of the individual lighting elements is individually controllable, the method comprising the following steps: - Detecting a switched-on state of at least one headlight (21), - Detection of a body to be de-glared (3) (22), - Determining a glare reduction angle range (14) based on a determined extent and position of the detected body (3) and determining at least one transition angle range (19) adjacent to the glare reduction angle range (14) to a fully illuminated angle range (17), - Controlling the light intensity of the illuminating elements illuminating the glare-reducing angle range (14) to a light intensity below a specified limit value, - Controlling the light intensity of the illuminating elements illuminating the transition angle range (19) to a light intensity which depends on the distance (15) of the beam angle of the individual illuminating element from the glare-reducing angle range (14), wherein the light intensity increases with increasing distance (15) and wherein the size of the at least one transition angle range (19) is adjusted based on the angular velocity of a change in the position and / or size of the glare-reducing angle range (14).

A beam-steering projection system includes a light source configured to emit a light in response to image signal, a phase light modulator, and a spatial light modulator. The phase light modulator is configured to receive the light from the light source and to apply a spatially-varying phase modulation on the light, thereby to steer the light at an illumination angle and generate a first steered light. The spatial light modulator is configured to receive the first steered light, to apply a spatially-varying amplitude modulation on the light, to steer the light towards a projection optics system and to generate a second steered light. A plane of a secondary image constructed after the phase light modulator and before the spatial light modulator is parallel with the phase light modulator.

This utility model discloses a dual-angle adjustable multi-light source lamp, including a lighting module. The lighting module includes a support rod, limiting members, rotating members, and light sources. The limiting members and rotating members are both sleeved on the support rod, and the rotating members are rotatably arranged relative to the support rod. The light sources are rotatably connected to the rotating members. There are multiple limiting members, rotating members, and light sources. Multiple rotating members and multiple limiting members are spaced apart along the extension direction of the support rod, and multiple limiting members are respectively located between each rotating member. Each light source is connected to each rotating member in a one-to-one correspondence. The light sources can rotate around the support rod with the rotating members and also rotate on their own axis, greatly improving the flexibility of the light sources. Furthermore, the light sources do not affect each other, and the illumination angle of each light source can be adjusted independently to form the lighting effect required by the user, thereby improving the user experience.