91 results about "Mirror reflection" patented technology

This utility model discloses a square lampshade with a sealed, anti-overflow adhesive design, specifically relating to the field of square lampshades. It includes a mounting sealing plate with an overflow groove on its upper surface. A frame assembly is fixedly connected to the lower part of the mounting sealing plate. A mating assembly is tightly fitted to one side of the frame assembly. A lower front plate is fixedly connected to the lower inner side of the frame assembly, and a mirror reflector is fixedly connected to the reverse side of the lower front plate. This utility model connects the mounting sealing plate, overflow groove, frame assembly, mating assembly, mirror reflector, and lighting assembly. During operation, the internal lamp housing features a horizontal groove design, allowing the internal LED beads or tubes to be close to the housing wall, facilitating heat conduction. The internal mirror reflector provides clearer illumination, and the side sealing strip groove enhances the product's oil, dust, and water mist resistance, reducing damage to the lighting circuit board from contaminants.

The present application relates to the field of dam inspection, especially to a kind of image processing method and system for dam inspection, the present application is by controlling unmanned aerial vehicle to fly over detection area according to predetermined trajectory, when unmanned aerial vehicle is pre-entered detection area, continuously obtain image information and carry out multidimensional analysis, based on the result of multidimensional analysis and mirror surface reflection index, calculate to obtain spectral characteristic interference representation value, set interference label for detection area, subsequent interference label based on the control of unmanned aerial vehicle in detection area adaptively obtains spectral information in monitoring area, subsequent generation perspective adjustment instruction, by sampling determination selection confidence sampling position obtains spectral information, the present application is by image information in advance sensing interference situation of spectral information extraction in detection area, adaptively select spectral information capture mode, under the premise of guaranteeing inspection efficiency, improve the quality and reliability of the obtained spectral information, provide effective data support for subsequent analysis dam potential anomaly.

The application discloses a method for designing and optimizing a VLCP system assisted by light reflection RIS under low signal-to-noise ratio, wherein the VLCP system comprises an intelligent wall adopting a smart surface RIS with mirror reflection, a transmitter and a user terminal equipped with a receiver with a liquid crystal smart surface, communication and positioning signals are integrated into the transmitter, the transmitter comprises an LED, and the method comprises the following steps: under low signal-to-noise ratio, taking asymptotic capacity as a communication metric constraint condition, taking a Cramer-Rao lower bound of positioning error as a positioning metric constraint condition, combining a positioning constraint satisfaction process based on a two-stage greedy algorithm and a communication performance maximization process based on a greedy strategy convex relaxation algorithm, optimizing elements of an RIS allocation matrix to maximize the asymptotic capacity, obtaining an optimal RIS allocation matrix, and completing the design and optimization of the VLCP system. In a low signal-to-noise ratio scene, the VLCP system of the application can significantly improve system performance by applying RIS.

The present application relates to the technical field of satellite altimetry and ocean surveying and mapping, and in particular to a GNSS-R sea surface height measurement method based on variable step line segment intermediate frequency data processing, which can effectively improve the measurement accuracy and efficiency, comprising obtaining satellite-borne GNSS-R original intermediate frequency data, calculating mirror reflection points through a new variable step line segment (NVSLSM), generating a delay Doppler map (DDM), and performing sea surface height inversion. Compared with the prior art, the NVSLSM is used to process the mirror reflection points, the calculation time is increased by about 2.04 times and 1.47 times compared with the line segment bisection method and the QH method, and on the premise of ensuring the convergence accuracy, the stable solution can be reached through fewer iteration steps, thereby reducing the calculation cost per sample; in the delay Doppler map generation link, the overall calculation efficiency is increased by more than about 90%.

The utility model relates to solar water heater component technical field especially relates to an improved solar heat collecting pipe structure, including light -transmitting outer tube, the heat absorbing inner tube of setting in the middle part of light -transmitting outer tube inside, the selective absorption coating of coating in the heat absorbing inner tube outside and the heat pipe of detachable installation in the heat absorbing inner tube inside through fixed plug, the heat collecting part of setting between light -transmitting outer tube, heat absorbing inner tube and heat pipe has comprehensively promoted solar heat collecting pipe heat absorption and heat conducting effect. In the utility model, the heat conducting wire net and heat conducting support seat are arranged between the heat absorbing inner tube and the heat pipe, and a mirror surface reflecting layer is arranged on the light-transmitting outer tube, sunlight can be reflected to the lower side of the heat absorbing inner tube through the mirror surface, the contact area between sunlight and the heat absorbing inner tube is effectively increased, and the heat loss of heat transfer between the heat absorbing inner tube and the heat pipe is effectively reduced, so that the heat efficiency of the solar heat collector is comprehensively improved.

The application discloses an indoor parking lot vehicle positioning and reverse vehicle searching method based on visual semantic analysis, which comprises the following steps: dividing an image into a real physical surface and a mirror virtual image area, and calculating a ground reflection reference surface; establishing a virtual mirror camera symmetrical to the real main camera based on the reference surface, repairing the mirror virtual image feature to the effective observation of the virtual camera; introducing a symmetrical virtual observation factor in pose optimization, jointly optimizing the re-projection error of the real main camera and the virtual camera, converting the mirror interference into a geometric constraint for enhancing positioning, so as to solve the continuous vehicle pose, significantly improve the positioning accuracy and robustness in the mirror reflection scene such as the indoor parking lot, and realize reliable reverse vehicle searching application.

This invention discloses a video advertising projection device for exhibitions with multi-wide-angle lighting functions, including an exhibition video advertising projector, a dynamic attitude adjustment component, an intelligent color-tuning and soft light diffusion component, and a light path shaping and light-cutting component. The exhibition video advertising projector has a spotlight drive chamber installed inside, and the dynamic attitude adjustment component is installed inside the spotlight drive chamber. The intelligent color-tuning and soft light diffusion component is installed on the outer surface of the dynamic attitude adjustment component, and the light path shaping and light-cutting component is installed inside the intelligent color-tuning and soft light diffusion component. This invention constructs a dynamic adjustment mechanism for the spotlight attitude through the coordinated operation of an electric push rod, a telescopic rod, a micro servo motor, and a counterweight. This avoids the defects of mirror reflection, whitening, and blurring caused by the fixed-angle wide-angle direct illumination of the spotlight on the advertising screen. Through the mutual cooperation of a dimming plate, a drive motor, and gears one and two, intelligent switching between warm and cool colors and stepless adjustment of light intensity are achieved.

1. Name of the product in this design: Rearview Mirror (RM-19). 2. Purpose of this design: This design is used for rearview mirrors of motorcycles, electric vehicles, and bicycles, providing users with information about road conditions behind them through mirror reflection. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

The application discloses a high-precision anti-interference dew point measurement method of a cold mirror based on semiconductor refrigeration. The device used in the measurement method mainly comprises an optical measurement module, a temperature measurement module and a control processing unit. The method cools the mirror surface through a semiconductor refrigerator, and the control processing unit integrates a self-adaptive PID algorithm to dynamically adjust the refrigeration power. The light emitted by a collimated light source is reflected by the mirror surface and is received by a reflected photoelectric sensor. Through the change of reflectivity, the reflected light intensity is dynamically compensated based on a reference light signal to eliminate common-mode interference. The measurement method comprises the following steps: initializing and recording the baseline of multiple light signals; controlling the stepwise cooling of the mirror surface and synchronously monitoring; calculating and processing the light signal in real time, determining the dew starting based on a dynamic threshold; switching to PID control to finely balance the temperature near the dew point, and recording the stable value; correcting and outputting the final dew point value by using a compensation model; stopping the refrigeration and evaporating and resetting the mirror surface by using the residual heat, and entering the next cycle.

The utility model relates to a dining table technical field, concretely relates to a kind of embedded dining table with light and shadow effect, including base;Rectangular outer frame is installed on base;Top cover is installed at the top of outer frame, and top cover middle part is hollowed out and embedded single lens;Reflecting mirror is located at the top center of base;Pattern switching mechanism is installed in the inside of outer frame;Pattern switching mechanism includes: four vertical fixed posts are set on base, and the synergistic innovation of double-layer dynamic pattern switching mechanism and the inside light bar of vertical fixed post is realized in the real-time variability of abyss mirror effect in dining table limited space: eight-axis synchronous drive system ensures that four groups of pattern reel are accurately positioned when being retracted and switched, and simultaneously directional light bar continuously covers mechanical gap, so that the light and shadow depth of reflecting mirror reflection is always without fault surface;Combined with the space deformation ability of turnover table top, embedded dining table is endowed with unprecedented immersive variable scene experience.

The present application relates to the technical field of satellite altimetry and ocean surveying and mapping, and in particular to a GNSS-R sea surface height measurement method based on variable step line segment intermediate frequency data processing, which can effectively improve the measurement accuracy and efficiency, comprising obtaining satellite-borne GNSS-R original intermediate frequency data, calculating mirror reflection points through a new variable step line segment (NVSLSM), generating a delay Doppler map (DDM), and performing sea surface height inversion. Compared with the prior art, the NVSLSM is used to process the mirror reflection points, the calculation time is increased by about 2.04 times and 1.47 times compared with the line segment bisection method and the QH method, and on the premise of ensuring the convergence accuracy, the stable solution can be reached through fewer iteration steps, thereby reducing the calculation cost per sample; in the delay Doppler map generation link, the overall calculation efficiency is increased by more than about 90%.

The present application relates to the technical field of image detection, and more particularly to a weakly supervised intraoral photo detection and segmentation method for early caries. The method comprises the following steps: step 1: performing color standardization on an intraoral photo to obtain a color-standardized intraoral photo, and extracting an edge response map; step 2: in the tooth surface region mask, when the foreground and the background compete simultaneously, first comparing the average value of the edge response map sharing the edge, and then confirming by adjacency majority; traversing until there is no new attribution in the two queues, and outputting a pseudo-label mask; step 3: training a segmentation network jointly supervised by the pseudo-label mask and a small amount of pixel-level labeled samples, for detection and segmentation of white spot caries and hidden caries. The present application can effectively reduce the cost of manual labeling, reduce the false detection and missed detection caused by mirror reflection and noise, and improve the boundary fitting degree and cross-sample stability.

The application belongs to the technical field of image processing, and particularly relates to a UV ink curing degree detection method and system based on texture analysis, which comprises the following steps: collecting an original gray-scale image of a UV ink surface, constructing a local illumination saturation index positioning mirror reflection dominant area, and combining a texture optical masking coefficient to obtain an adaptive texture recovery gain; performing weighted processing on the gray-scale value and high-frequency component of the original gray-scale image by using the local illumination saturation index and the adaptive texture recovery gain respectively, extracting macroscopic statistics and microscopic structure features of a reconstructed image to construct a multi-dimensional texture feature vector; inputting the multi-dimensional texture feature vector into a support vector machine classifier to obtain a curing state, and generating a control signal according to the curing state. The application improves the extraction effect of weak texture features under strong light interference, and provides technical support for closed-loop control of the curing process.

The application provides a non-dispersive infrared gas sensing system and a manufacturing method thereof. The system comprises an infrared light source, an infrared detector and a reflective gas chamber. The reflective gas chamber comprises a plurality of planar sidewall components which are spliced with each other through a mortise and tenon structure to form a polyhedral reflective cavity structure; the infrared light source and the infrared detector are arranged on the same planar sidewall component, and another planar sidewall component is provided with a gas inlet and a gas outlet, the gas inlet is used for the target gas to enter the reflective gas chamber, and the gas outlet is used for the target gas to leave the reflective gas chamber. The inner surfaces of the planar sidewall components are all coated with a high reflection film, the incident light emitted by the infrared light source is subjected to multiple diffuse reflection and mirror reflection inside the reflective gas chamber to form a cavity light field, and the cavity light field is received by the infrared detector after being absorbed by the gas. The gas chamber is spliced through a modular mortise and tenon structure, the split processing and film coating of the sidewalls are realized, and the film coating dead angle and shadow effect are eliminated.

This application provides an optical pen, a positioning method, a display panel, and an interactive system. The optical pen includes a shell, a pen tip, a light source, an image acquisition unit, and a processing module. One end of the pen tip has a pen tip structure. The light source is used to alternately emit two different preset wavelengths of light when the pen tip structure is triggered, so as to alternately form light spot patterns with overlapping orthographic projections at the target position. The image acquisition unit is used to alternately acquire image frames of light spot patterns corresponding to the two preset wavelengths of light. The processing module can perform noise reduction and analysis processing on adjacent image frames to obtain a first pre-processed image frame and a second pre-processed image frame, and further generate a target image frame to determine the position of the pen tip structure. This application can reduce the interference of specular reflection light from the display panel, improve the contrast and image clarity of the pixel coding layer imaging, achieve precise positioning of the pen tip structure, and thus improve the performance and control accuracy of the optical pen.

The present disclosure relates to the technical field of holographic optical waveguide, and provides a holographic grating preparation system and a preparation method. The holographic grating preparation system comprises: a laser light source for generating a laser beam; a polarization light splitting component for splitting the laser beam into two beams and adjusting the light intensity and the beam polarization direction of the split laser beams, so that the polarization directions of the two split laser beams are perpendicular to the horizontal plane and parallel to the rotation axis of the mirror; a mirror group for mirror reflecting the split laser beams output by the polarization light splitting component to form two intersecting laser beams with a set angle, and the set angle is adjusted according to the rotation angle of the mirror group; and a recording medium for receiving the two intersecting laser beams, recording the interference fringes of the two intersecting laser beams through the refractive index and / or transmittance changes varying with the two intersecting laser beams, and forming a holographic grating.

The application discloses an aluminum plate strip surface defect detection device and method. The device comprises a placing table, driving mechanisms symmetrically arranged on both sides, a limiting mechanism, an image acquisition mechanism and a light source emitting mechanism. The driving mechanism adopts a belt circulating rotation with V-shaped groove protrusions to realize non-destructive locking driving of the edge of the aluminum plate strip; the placing table is provided with a trapezoidal guide table to assist the connection of the end of the plate. The core feature is that the light source emitting mechanism utilizes a lead screw transmission to drive the lighting lamp to reciprocate linearly along the advancing direction of the aluminum plate strip, thereby providing dynamic and multi-angle illumination, so that the mirror reflection feature produces physical displacement with the change of the light source position. The application effectively solves the environmental light misjudgment problem in the detection of high reflectivity materials by using the physical light and shadow displacement law, and significantly improves the accuracy, reliability and automation level of industrial online detection.

This application belongs to the field of heliostat technology, specifically relating to a multi-tower collaborative method for testing the reflectivity of a tower-type photothermal heliostat. By controlling the heliostat to accurately align the reflected light from the light source with a camera, and utilizing the light spot intensity information collected by the camera, combined with an established physical optical model, in-situ, non-contact testing of the mirror reflectivity is achieved. The core of the multi-tower collaborative testing method lies in modeling the selection problem of each batch of heliostats as a bipartite graph maximum flow problem with capacity constraints, and iteratively solving it to maximize the number of heliostats tested simultaneously in each batch. This allows for the simultaneous testing of dozens or even hundreds of heliostats, greatly improving testing efficiency. Furthermore, by using light spot intensity and the physical optical model, reflectivity can be tested more accurately, reducing errors.

This invention relates to the field of chip technology, specifically to a same-side electrode plant lighting chip and its fabrication method. The chip, from bottom to top, comprises an aluminum nitride substrate, a bonding layer, an oxide composite reflective layer, a graphene heat dissipation channel layer, an AZO transparent conductive layer, a P-side electrode, a GaP window layer, a P-type semiconductor layer, a light-emitting layer, an N-type semiconductor layer, a roughening layer, a passivation layer, a GaAs contact layer, and an N-side electrode. This invention rationally designs the chip structure and fabrication process, creating a nested P / N electrode structure, and simultaneously designs a composite material mirror reflective layer. The resulting LED chip exhibits extremely high thermal conductivity, good mechanical strength and high-temperature resistance, low cost, and improved optical performance, conversion efficiency, heat dissipation effect, and extended service life.

This invention discloses a calibration device and method for a non-common-line structured light sensor of track gauge inspection equipment based on dual-mirror reflection. The calibration device includes a first camera and a second camera to be calibrated, as well as a first target, a first plane mirror, a second plane mirror, a second target, and a third target. The calibration method includes calibrating the extrinsic parameters between the first and second virtual cameras; calibrating the extrinsic parameters between the first and second virtual cameras, and / or the extrinsic parameters between the second virtual camera and the first camera; establishing a conversion relationship between the extrinsic parameters of the first and second cameras, and converting to obtain the extrinsic parameters between the first and second cameras. This invention addresses the problem that existing technologies cannot meet the requirements of rapid and accurate calibration and long-term stable operation in the engineering application of track gauge inspection equipment, achieving the goal of rapid and accurate calibration of track gauge inspection equipment.

The application discloses a furniture special-shaped part detection method and system based on machine vision, and relates to the technical field of machine vision detection, which comprises the following steps: collecting original image data of a furniture special-shaped part and performing image registration, performing feature enhancement on the registered image data, and generating multi-modal image data; performing decomposition and enhancement processing on the multi-modal image data to obtain a final reflection image and an enhanced topographic image; inputting the final reflection image and the enhanced topographic image into a defect detection network based on an attention mechanism and contrast learning, performing cross-modal feature fusion, and outputting a defect detection result of the furniture special-shaped part; and the application realizes effective differentiation of surface texture and mirror reflection interference of the furniture special-shaped part through multi-modal image acquisition and feature enhancement, polarization light reflection correction, and a cross-modal defect detection network based on an attention mechanism and contrast learning, and solves the problems of difficulty in accurately identifying real defects and high false detection rate and missed detection rate.

The present application relates to the technical field of image detection, and discloses a card surface topography defect detection method and system based on a relief effect, which comprises the following steps: double-frequency structured light adaptive projection of a laminated card, relief three-dimensional height map reconstruction based on phase deflection, automatic segmentation of a relief area based on a variational level set, analysis of relief profile curvature continuity and defect detection, and relief depth statistical process control. The present application eliminates mirror reflection interference of a laminated layer through a double-frequency phase shift algorithm, and the measurement accuracy of the relief depth reaches ±5 microns, and the detection accuracy reaches 99.5%.

The utility model discloses a kind of photolysis activated carbon waste gas treatment equipment, including main casing, the inner bottom side of main casing is fixedly installed with UV lamp, the outside of UV lamp is equipped with transparent quartz glass, and transparent quartz glass is fixedly connected between main casing, the arc-shaped inner wall of main casing is fixedly embedded with mirror surface reflection board;The top of main casing is fixedly connected with cover plate, and cover plate is sealed and abuts between transparent quartz glass, mirror surface reflection board.The utility model in the present application, by integrating UV lamp, mirror surface reflection board and scraping component in main casing, effectively solve the problem of uneven waste gas flow, photolysis is not sufficient and low processing efficiency in traditional UV photolysis device.UV lamp cooperates transparent quartz glass and mirror surface reflection board of aluminium oxide coating, can enhance ultraviolet radiation intensity and coverage, make waste gas receive multi-angle, high-intensity photolysis effect in flowing process, significantly improve reaction efficiency.

To provide an iris recognition device and method for correcting pupillary deviation based on the dominant eye. [Solution] An iris recognition device for correcting pupil deviation using a dominant eye according to one embodiment of the present invention includes: an iris recognition unit that uses a camera module to recognize the user's face, the pupil positions of both eyes, and reflected light (SPECULAR) generated at the iris recognition position, and determines whether the pupil position and the position of the reflected light can be aligned; an indicator control unit that activates an IR-LED indicator for iris recognition to generate the reflected light at the iris recognition position and activates an additional indicator located on the eyeball side where the pupil position and the position of the reflected light were not aligned; and an iris image generation unit that captures the iris images of both eyes when the reflected light is aligned at the pupil positions of both eyes.

The utility model discloses a laser light splitting cutting device, aims at providing a kind of laser light splitting cutting device which is not only simple structure, easy to make, and can utilize single laser to simultaneously carry out continuous cutting to the cloth of two stations, to effectively reduce the production cost of a kind of laser light splitting cutting device. It includes: laser; Light splitter, including two mutually set angle mirror surface, and two mirror surfaces intersect;The laser emission of a laser is shot into the intersection of the two mirror surfaces of light splitter, and a part of laser in the laser emission of laser is reflected by one mirror surface, another part of laser is reflected by another mirror surface, to divide the laser emission of laser into two lasers.

The application discloses a kind of laser scanning detection method and system of glass surface defect, belong to optical intelligent detection technical field.This method establishes multi-angle laser scanning optical path, makes incident angle in 15° to 75° range continuously adjustable, and drives light beam to carry out two-dimensional scanning;Polarization light path system is configured, incident laser is converted into single polarization state linearly polarized light, and reflected light is divided into two ways by beam splitter at detection end, respectively for monitoring total light intensity and measuring light intensity after polarization analysis, and performing polarization state orthogonal alignment process, so that the transmission axis of polarization analysis element and the polarization direction of mirror reflection component are orthogonal;Double-mode scanning detection is executed, low-angle incidence mode is used to quickly establish overall topography profile, and high-angle incidence mode is used for fine detection of specific area.The application can effectively suppress the mirror reflection interference of high-reflectivity glass surface, avoid signal saturation, and realize high-precision and high-efficiency glass surface flatness detection.

The application provides a vehicle 3D model light rendering method, system, electronic equipment and medium, and belongs to the technical field of vehicles. The method comprises the following steps: acquiring an aerial panoramic image collected by a surround-view camera; processing the aerial panoramic image to obtain a binary mask for marking a shadow area of a vehicle; performing main light source parameter estimation based on a vehicle 3D model, the aerial panoramic image and the binary mask to obtain a main light source parameter set; determining an ambient light parameter based on the aerial panoramic image and the binary mask; and performing 3D vehicle model rendering based on the main light source parameter set, the ambient light parameter, the vehicle 3D model and the aerial panoramic image. The application uses the shadow projected by the vehicle itself as an information source for light perception, realizes closed-loop light perception and can adapt to complex scenes. Through accurate light source direction calculation and full parameter estimation, the application provides a mathematical basis for generating correct shadow projection and mirror reflection effects, and significantly improves the realism of rendering.

The application provides a machine vision-based defect detection method and system for the rear surface of an ultrathin optical device after coating, and relates to the technical field of ultrathin optical device detection.The method comprises the following steps: according to a forward model of a multilayer interference light field, performing reverse decoupling on an original interference superposition image sequence, separating and enhancing a front surface defect signal, integrating rear surface interference into a suppression image, and obtaining front and rear surface decoupling images; after extracting the front surface decoupling image, generating a contrast stretching mapping dynamically by using local gray histogram statistical analysis, suppressing nonlinear mirror reflection and gradient amplifying a weak undulation signal, and obtaining a weak topography high-contrast image; and performing polarization phase delay analysis on the weak topography high-contrast image, and obtaining a hidden defect polarization response map.The application can realize accurate identification and positioning of the rear surface defects of the ultrathin optical device after coating.

The application belongs to the technical field of photoelectric detection, and relates to a solution concentration servo detection device and method. The device comprises a light source, a scanning galvanometer, a trapezoidal prism and a linear array CCD. The scanning galvanometer is provided with a rotating part, so that the mirror surface of the scanning galvanometer can be axially rotated horizontally. The light emitted by the light source is directed to the mirror surface. The trapezoidal prism is horizontally arranged below the scanning galvanometer. Among two horizontal surfaces of the trapezoidal prism, one surface of the long side is a top surface close to the scanning galvanometer, and one surface of the short side is a bottom surface. The light is reflected by the mirror surface, passes through the top surface and reaches a first reflecting surface of the trapezoidal prism. The linear array CCD is arranged above the trapezoidal prism, and the light is reflected by a second reflecting surface of the trapezoidal prism and projected on an image surface of the linear array CCD. The application reduces the use of precision optical instruments, reduces the installation and calibration requirements of the equipment, and improves the production efficiency of the equipment.

The present disclosure provides a system for optical detection of an eye, comprising: a light emitting assembly configured to form an incident light ray array comprising a plurality of incident light rays parallel to a chief ray; a half mirror configured to reflect the incident light ray array at an angle to an optical axis of the system for forming a plurality of chief rays parallel to the optical axis of the system; a first objective lens having an optical axis coinciding with the optical axis of the system for converging the plurality of chief rays formed via the half mirror reflection onto a pupil plane of a measured eye so as to form a spot array on a retina of the measured eye; and a photodetector configured to acquire a spot array image corresponding to the spot array for detecting optical performance of the retina of the measured eye. The present disclosure can simultaneously measure optical imaging quality of a central field of view of the retina along an optical axis direction and optical imaging quality of a peripheral field of view of the retina to achieve fast detection of optical quality of the eye for a wide field of view on and off the optical axis.