99 results about "Point light source" patented technology

The invention relates to a structured light illumination confocal super-resolution measurement system and method, and relates to the technical field of optical measurement. The system comprises a digital micromirror device (DMD), a sample platform, an electric displacement platform, a microscopic imaging assembly, a complementary metal oxide semiconductor (CMOS) imaging assembly and computer equipment, and the DMD is used for adjusting the point light source array and the structured light field. According to the DMD-based confocal super-resolution measurement method, a structured light field and a signal-noise separation technology are combined, and high-precision and high-resolution three-dimensional surface reconstruction can be realized. By using the flexibility of the DMD and the advantages of the super-resolution technology, the spatial resolution and speed of confocal imaging are effectively improved, so that the measurement process is more accurate. In addition, low-rank decomposition and self-supervised deep learning methods are fused, the image reconstruction process is optimized, noise interference is suppressed, and the overall performance of the system is further improved.

The invention provides a visual tactile sensor, a geometric calibration method and computer equipment, and the visual tactile sensor comprises a base which is internally provided with an imaging unit; the light source module is arranged on the base and comprises 3N single-point light sources which are arranged around the imaging unit and can be independently controlled, and N is larger than or equal to 1; and the elastic housing is arranged on the base in a covering manner, and the imaging unit and the light source module are wrapped in the elastic housing. By constructing the novel curved surface visual tactile sensor and the matched geometric calibration method thereof, the problems that a traditional plane sensor is weak in multi-direction contact sensing capacity, difficult in curved surface calibration and the like are effectively solved, data generated by a physical model are used for training a lightweight neural network, and the accuracy of the curved surface visual tactile sensor is improved. Real-time surface normal prediction under single-frame three-color image input is realized, and the precision and reasoning speed of three-dimensional reconstruction are considered while hardware dependence and calibration cost are remarkably reduced.

The application provides a multi-channel imaging optical eccentricity correction method applied to a multi-channel camera, and the optical eccentricity correction method comprises the following steps: real-time shooting of the inside of an integrating sphere by the multi-channel camera; adjusting the position of each lens relative to the lens chip to make the brightness of the four corners of the video display page of the multi-channel camera consistent; simultaneously shooting an infinite faraway same point light source by N lenses of the multi-channel camera, so that the video display page of the multi-channel camera simultaneously displays N shooting pictures, and the point light source is displayed on each shooting picture; and taking the image plane position of the point light source in one of the shooting pictures as a reference, adjusting the image plane positions of the point light sources in other shooting pictures to be the same as the reference. The multi-channel imaging optical eccentricity correction method can reduce the relative eccentricity degree of the lens and the chip, improve the common field of view of the multi-channel camera, and improve the shooting efficiency.

The present application relates to computer vision and three-dimensional reconstruction technical field, disclose a kind of based on image recognition's building decoration component three-dimensional modeling method, method includes the following steps: receiving near-axis active illumination image sequence, solving camera pose and equivalent point light source trajectory;Inverse projection two-dimensional foreground mask generates maximum base envelope grid;Combining brightness gradient and texture high-frequency edge tensor field removes false shadow, extract effective sweep shadow mask;Tracking shadow residual optical flow displacement and combining light source trajectory analysis absolute depth, generate local three-dimensional point cloud;Surface reconstruction is executed to point cloud and opening plugging constructs negative space primitive entity grid;Extract the Laplace curvature energy of interface to generate normal shrinkage constraint, control entity grid after shrinkage and envelope grid execute Boolean difference set operation output model.The present application extracts absolute depth in featureless recessed area, and eliminates the boundary interference and distortion of grid Boolean operation.

This invention relates to the field of precision alignment technology, specifically to an astigmatic differential confocal alignment system and method capable of synchronous imaging. The astigmatic differential confocal alignment system includes: an astigmatic differential confocal optical path system and an imaging optical path system sharing the same objective lens; the astigmatic differential confocal optical path system includes a laser, a collimating and expanding beam system, a polarizing beam splitter cube, a quarter-wave plate, a long-pass filter, a short-pass dichroic mirror, an objective lens, a non-polarizing beam splitter cube, a plano-convex cylindrical lens, and two four-quadrant photodetectors connected in sequence; the imaging optical path system includes a visible light point source, a beam splitter, a short-pass dichroic mirror, an objective lens, a sleeve lens, and a camera connected in sequence; the two optical path systems are coaxial and synchronized. When the defocus error signal FES crosses zero, the camera synchronously acquires a clear morphological image of the surface of the sample under test, achieving synchronization of alignment and imaging.

To achieve a good visual effect. [Solution] An image forming apparatus 1 creates a decorative medium MC1 by sequentially superimposing and printing a lower color toner image PNL, a silver toner image PS having a background area AB and a decorative area AC, a transparent toner image PC, and an upper color toner image PNU on the surface of a blank medium M. As a result, the decorative medium MC1 can reduce the rate at which a portion of light transmits from the back side of the medium M compared to when the lower color toner image PNL is omitted, making the decorative area AC less visible. This allows the image forming apparatus 1 to create a good visual effect in which the decorative area AC appears and disappears on the surface of the decorative medium MC1 when the relative positions and angles of the observer's viewpoint VP, light source LS, and decorative medium MC1 are changed in various ways.

The application belongs to the technical field of positioning and measurement, and particularly relates to a target positioning method and device combining CSI coarse positioning and Y-type CCD fine correction, which comprises the following steps: S1, CSI acquisition equipment is arranged in a target area, and CSI data between a sending end and a receiving end is acquired; S2, a Y-type CCD sensor is geometrically calibrated and a coordinate system is corrected, and coordinate reconstruction is completed; S3, the CSI data is preprocessed, noise is removed, and input is normalized; S4, time domain features of the CSI are extracted by using a time domain branch; S5, frequency domain features of the CSI are extracted by using a frequency domain branch; S6, a gating fusion module is used to fuse the time domain and frequency domain features, and the approximate position coordinates of a target are output; S7, the Y-type CCD sensor is controlled to optically acquire a target area, and point light source coordinate information is acquired; and S8, error correction is performed on the data acquired by the Y-type CCD, and the accurate position coordinates of the target are output.

This invention discloses a closed-loop optical architecture for suppressing stray light at the source of a light source, relating to the field of lighting optics design technology. The invention includes a light-emitting source and a mounting substrate, with an enclosing structure matched to the outer periphery near the light source. A continuous light-absorbing surface is formed on the inner side of the enclosing structure, corresponding to the lateral stray light overflow path of the light source, used to constrain lateral diffuse light and stray light overflow. A forward light-emitting opening is reserved at the top of the enclosing structure to avoid obstruction of the main axial light path of the light source and maintain the integrity of the forward light-emitting path. The enclosing structure adopts a double-layer composite structure, realizing lateral light absorption and structural shaping functions respectively, and can adapt to various light source arrangements such as point light sources, linear strip light sources, and multi-light source combination modules. This invention, through the bottom-layer optical path structure design of near-end enclosing light control, achieves source suppression of stray light and glare without attenuating forward light emission.

The invention belongs to the technical field of optical lenses, and particularly relates to a discrete point source bus set envelope fitting and optimization design method for expanding a light source to realize uniform illumination. Dispersing the expansion source into point light sources, and obtaining a cluster bus set based on an accurate mathematical model of the point light sources; according to an envelope principle, selecting an outmost contour including all features as much as possible, and fitting the outmost contour by using a polynomial under a polar coordinate system to serve as an initial generatrix of the light distribution lens; a root mean square error of an irradiance distribution numerical value obtained by running a two-dimensional ray tracing program is used as an evaluation index to optimize and fit various coefficients of a polynomial, finally, the lens suitable for achieving uniform illumination through extended source light distribution is obtained, and the problem that mathematical modeling of an extended source light distribution light path is difficult is solved; through verification, the performance is good, the irradiation uniformity is gradually improved to 92.7% from 76.8% of an initial structure, the edge irradiance gradient is improved to 0.45 from the initial 0.27, and the edge dispersion problem is effectively weakened.

This invention provides a method for obstacle contour perception based on grating mesh in parking scenarios. A grating mesh is generated by a point light source and grating lenses and projected onto the area to be measured. Video data of the area to be measured is acquired using a monocular camera. The video data is preprocessed to obtain a grating map of the region of interest (ROI) of the obstacle. Grating picking is performed on the grating map of the ROI to extract grating mesh lines, and these lines are numbered. Feature points are then picked up, and 3D feature point reconstruction is completed. Based on the reconstructed 3D feature points, a normal-multiple clustering method is used to fit the facade, outlining the obstacle contour and achieving obstacle contour perception. Compared with existing technologies, this method can effectively improve the speed and accuracy of obstacle contour visual detection during parking, and enhance the adaptability of visual detection to the environment. It has the advantages of low cost, high accuracy, and ease of use.

The present application relates to a kind of based on periodic light-emitting plant and animal lighting system and method.The lighting system includes lighting board, image detection unit and control unit.Lighting board includes several adjacent spliced area light source and point light source arranged at the splicing node of area light source.Control unit is based on image analysis the growth state of the irradiated object, and sends the light-emitting instruction corresponding to growth state to lighting board.Lighting board is based on light-emitting instruction control the light-emitting mode of area light source and point light source.Area light source emits growth-promoting light that vertically irradiates the irradiated object in the manner of adapting the photoperiod of the current growth state of the irradiated object.Point light source can emit pest control light that obliquely irradiates the area near the irradiated object in rotatable manner.The present application can make the growth of seedling better while preventing pests, avoid the plant to grow obliquely due to the relative inclination of the location and light source, and thus improve the yield of seedling.

The invention relates to a focusing method and device, computer equipment, a chip and a chip module. The method comprises the following steps: carrying out image acquisition on a target scene at each lens position to obtain a first image of each lens position; for each first image, performing color space conversion on the first image to obtain a second image, and performing coding compression on the second image to obtain a coded image; the data volume of the coded image is used as a focusing value; and determining a target focusing numerical value meeting the focusing condition, and taking the lens position corresponding to the target focusing numerical value as the focusing position of the target scene. As the coding compression process is more sensitive to the compactness of global information included in the second image, and rich details included in the clearer second image can cause the coded image to have a higher data volume, the focusing value can more stably and accurately reflect the overall definition change trend of the second image, and the image quality is improved. Therefore, the stability and the success rate of automatic focusing in scenes of point light sources, high contrast and the like are remarkably improved.

Disclosed in the present application are an imaging method, an imaging apparatus (300), a head-mounted display (100), and a storage medium. The method comprises: by means of a mask, modulating the phases of spherical waves emitted by point light sources, so as to change propagation parameters of the spherical waves, the propagation parameters comprising at least one of the phases and the amplitudes, the parameters of the spherical waves at different depths modulated by the mask being different from each other, and a photographed scene containing a plurality of point light sources; on the basis of the spherical waves of which the propagation parameters have been changed, generating a grayscale image; and, on the basis of a preset high-dimensional reconstruction model, high-dimensionally reconstructing the grayscale image, so as to generate a high-dimensional image containing depth information.

The invention discloses a dispersion objective lens with a numerical aperture of 0.75. The dispersion objective lens comprises a triplet lens, three doublet lenses and three single lenses which are coaxially arranged, and after a continuous spectrum point light source passes through the dispersion objective lens, light with different wavelengths realizes differential convergence on an optical axis; a dispersion curve is fitted through a quadratic function, a small amount of dispersion linearity is sacrificed, better balance of an axial dispersion range and imaging quality is realized, and double targets of large dispersion range and high-quality imaging are achieved. The device has the advantage of long object distance, is convenient for front-end light path adjustment, and can be flexibly applied to various measurement systems.

The application belongs to the technical field of photoelectric displacement precision measurement, and particularly provides a cylindrical grating ruling error detection method and system; firstly, the positioning error of the cylindrical grating is calibrated through two angles, then the different-axis errors are calculated according to the gray data of the cylindrical grating collected by the point light source and the line array image sensor at different measurement angles, and finally the different-axis errors are eliminated from the positioning error to realize the detection of the ruling error; the application can effectively suppress the interference of the different-axis errors in the ruling error detection process, effectively improve the inherent precision of the cylindrical grating displacement measurement, and is suitable for high-precision industrial, aerospace and other scenes.

The invention discloses an atomic fluorescence detection device and method, and the device comprises an atomic gas chamber which is used for spontaneously radiating atomic fluorescence rays; the reflecting device is used for reflecting the fluorescent rays, so that the fluorescent rays reflected by the reflecting device are converged to the spherical lens; the spherical lens is used for receiving the reflected fluorescent rays and increasing the convergence degree of the fluorescent rays reflected by the reflecting device; and the fluorescence detector is used for receiving and detecting the fluorescence rays. The atomic gas chamber has the advantages that the principle is clear, the structure is simple, and by adjusting the distance between the rectangular reflecting mirror in the reflecting device and the point light source at the central position of the atomic gas chamber and the distance between the first prismatic right-angle reflecting mirror and the point light source and the distance between the second prismatic right-angle reflecting mirror and the point light source in the vertical direction, the atomic gas chamber can be reflected; reflected fluorescent rays are converged to the spherical lens to the maximum extent, and the fluorescent ray detection efficiency is improved.

Methods and apparatus for specular surface mapping in which a camera detects reflections of a light source from a specular surface. The detected light sources may be projected onto a celestial sphere as virtual point sources. True positive observations should be tightly clustered on the celestial sphere; thus, false positives may be identified and removed. Specular surface information may then be determined from clusters of the virtual point sources on the celestial sphere. The clusters of virtual point sources on the celestial sphere may be identified and used to identify a surface as a specular surface. The clusters may also be used to extract other information regarding the specular surface, including but not limited to distance to and extent of the specular surface.

The invention provides a data acquisition method and device and a near-infrared brain function imaging system, and relates to the technical field of functional near-infrared spectral imaging. The data acquisition method comprises the following steps: in response to an externally input data acquisition request, performing encoding operation on a target modulation matrix to generate a plurality of modulation signals, so as to modulate first amplitudes of optical signals output by a plurality of point light sources by using a plurality of modulation signal sequences respectively; receiving electric signals sent by the detector, and determining second amplitudes corresponding to respective return light signals of the plurality of point light sources according to the received electric signals under the condition that the number M of the received electric signals is greater than or equal to N; and obtaining a data acquisition result according to the first amplitudes and the second amplitudes corresponding to the plurality of target point light sources.

The application provides a security pattern generation method with an arbitrary image distance, comprising the following steps: S1, designing pattern data processing; S2, calculating a basic imaging microstructure; S3, obtaining an axis core coordinate according to an array rule; S4, calculating an anisotropic imaging microstructure; and S5, cyclically generating the anisotropic imaging microstructure array according to an arrangement rule, so that the security pattern is realized when a point light source irradiates on the anisotropic imaging microstructure array. The security pattern film with the arbitrary image distance prepared by the method can realize the effects of floating in the air at an arbitrary distance and sinking at the bottom of the film, is not inferior to the double-layer micro-lens imaging technology, and is single-layer in structure, so that the method is not different from the preparation of the traditional holographic security film in process, and thus is easy to realize industrialization and mass production.

This improves the practicality of depth estimation of subjects using encoded imaging. [Solution] In an imaging device that performs encoded imaging, the processor performs the following processes: storing the captured image in memory; decoding the captured image based on the point spread function (PSF) of the imaging system for multiple PSFs with different point light source depths, and storing multiple decoded images in memory; evaluation value calculation process applying an evaluation function to each partial image region of the multiple decoded images and storing multiple evaluation values ​​in memory; and calculation using memory based on the multiple evaluation values ​​to determine the depth estimate of the subject portion corresponding to each partial image region of the captured image. When the processor performs the decoding image generation process and the evaluation value calculation process, it first performs processing for a first group of point spread functions, then performs processing for a second group of point spread functions, and determines the final depth estimate for each subject portion based on the results of these executions.

The invention relates to the technical field of absolute response calculation of in-orbit optical remote sensing satellites, in particular to an in-orbit satellite response calculation method based on a point light source, which comprises the following steps of: calculating entrance pupil radiance and a response value of a remote sensing camera; calculating a spectral response function and a spectral response bandwidth of the remote sensing camera; equivalent entrance pupil radiance is calculated through wavelength infinitesimal elements; performing least square fitting calculation through the equivalent entrance pupil radiation brightness and the response value to obtain an absolute radiation calibration coefficient; calculating the absolute radiation brightness under the equivalent extended light source; the atmospheric upper bound absolute radiation brightness is calculated through the atmospheric transmittance and the absolute radiation brightness under the equivalent extended light source, and the equivalent radiation brightness is calculated through the spectral response bandwidth; and the output response value of the remote sensing camera is calculated according to the equivalent spectral radiation brightness. According to the method, on-orbit satellite response calculation based on the point light source is realized by utilizing a point source target radiation transmission principle and combining a basic principle of optical remote sensing camera radiation calibration.

The application provides a method for calibrating the inner parameters of a defocus camera based on a circular hole target, comprising the following steps: step one: according to a light ray tracing model, an inner parameter matrix model containing unknown image distance, focal length and camera center position coordinates is established; step two: the circular hole target is moved for multiple times, and the size of each element in the matrix is obtained by using Zhang Zhengyou's calibration method; step three: the value of a polynomial containing the image distance and the focal length is calculated by moving the position of a point light source; step four: the CCD camera is moved, and a nonlinear equation set is established according to the difference value information of different image distances and focal lengths and the parameters obtained in step two, and the image distance, the camera focal length, the camera center position coordinates and the position of the point light source are solved. The application can solve the focal length and the coordinates of the camera center point under the condition of unknown image distance, and solves the problem that most calibration methods assume that the image distance is equal to the focal length, and the calibration is not accurate enough in the case that the image plane deviates from the focal plane.

The invention discloses a terahertz light path calibration method based on visible light simulation, and belongs to the technical field of light path calibration, and the method comprises the following steps: S1, adjusting the height and the vertical angle of visible first point laser emitted by a first point laser instrument; s2, a first laser level meter and a second laser level meter are placed on the two sides of the first parabolic mirror; s3, a first point laser instrument is placed on the side where a second laser gradienter is located, and first point laser is emitted to the center position of a first parabolic mirror and is aligned with the laser line propagation path of the second laser gradienter; s4, debugging the first working lens group by means of visible first point laser; and S5, replacing the first point light source instrument with the first terahertz source. According to the invention, the required equipment is simple, the operation is convenient and fast, the efficiency is high, the effective calibration of the light path can be realized only by means of the visible light source and the laser level meter, and the signal quality and the measurement precision are obviously improved.

The invention relates to an image definition value processing method and device, computer equipment, a computer readable storage medium, a computer program product and a chip. The method comprises the following steps: acquiring an original image, and carrying out noise reduction processing on the original image to obtain an initial image; dividing a focusing area in the initial image into a plurality of sub-window areas, and calculating a definition value of each sub-window area; according to the area structure of each sub-window area and the incidence relation between each sub-window area and the point light source area, the definition value of each sub-window area is subjected to weighted processing, and the definition statistical value of each sub-window area is obtained; and performing focusing curve fitting based on the plurality of definition statistical values to obtain a definition value curve, and taking a position corresponding to a peak value of the definition value curve in the focusing area as a focusing position. By adopting the method, the clearest focusing position can be accurately positioned, and the image focusing accuracy is improved.

The invention discloses a method for measuring the refractive index and the Abbe number of a lens based on double-fiber point diffraction transverse interference, and belongs to the technical field of optical measurement. The method comprises the following steps: firstly, setting the center of a line-scan digital camera as a space original point, arranging a measuring optical fiber point light source and a reference optical fiber point light source in parallel at a preset distance right in front of the midpoint of the line-scan digital camera, and determining coordinate positions of the two optical fiber point light sources in a two-dimensional space according to a corresponding relation between a phase and an optical path by collecting and processing a phase-shifting interferogram; on the premise that surface type parameters and thickness of the lens are known, the possible range of the refractive index of the lens is set through simulation, an optical path difference formed by two optical fiber point light sources at a specific position of an image plane after passing through the lens of the glasses is deduced by using a ray tracing method, then a function relationship between the optical path difference and the refractive index is fitted, and a measurement model is constructed; during actual measurement, a to-be-measured lens sample is placed between the optical fiber point light source and the linear array camera, the actual optical path difference is measured, and the refractive index and Abbe number values can be accurately calculated by substituting the actual optical path difference into the model in combination with lens surface type, thickness parameters and optical path difference data. The measuring device is simple in structure, and high-precision and convenient measurement of the refractive index and the abbe number of the lens can be realized.

The invention discloses a rotatable multi-mode lighting composite light source device with synchronous upper and lower stations, which comprises a first support frame, a second support frame arranged opposite to the first support frame and a rotary mounting frame rotationally connected between the first support frame and the second support frame, and the upper side of the rotary mounting frame is provided with a first mounting cavity; a second mounting cavity is formed in the lower side of the rotary mounting frame, a first point light source is mounted on the first mounting cavity, a first annular light source is mounted at the upper end of the first point light source, an upper detection station is arranged above the first annular light source, a second point light source is mounted on the second mounting cavity, and a second detection station is arranged above the second point light source. A second annular light source is arranged at the lower end of the second point light source, and a lower detection station is arranged below the second annular light source; the rotatable composite light source device with synchronous upper and lower stations and multi-mode illumination is more compact in structure, more suitable for miniaturization design, higher in detection efficiency and more comprehensive.

The application relates to an edge enhancement imaging system, which comprises a point light source, an object-side polarization filter unit arranged on the light-emitting side of the point light source and used for modulating light into specific polarized light to irradiate on a sample, an imaging unit arranged on the light-emitting side of the object-side polarization filter unit and used for propagating an input light field to an imaging surface, a spatial variable polarization modulation element arranged on the conjugate surface of the point light source relative to the imaging unit and used for spatial variable polarization modulation to obtain a modulated light field, an image-side polarization filter unit arranged between the spatial variable polarization modulation element and the imaging surface and used for screening the modulated light field to obtain a specific polarization direction light field, and the specific polarization direction light field forms an edge enhancement imaging light field on the imaging surface. The application also relates to a preparation method of the edge enhancement imaging system. The beneficial effect is that the imaging effect of arbitrary direction or full direction edge enhancement is realized, the common microscope imaging system can be compatible, the phase modulation is realized through polarization state transformation, and the sensitivity to wavelength is reduced.

The application provides a 3D shape reconstruction system based on active light and shadow, which does not depend on the texture of an object. The system controls a small point light source at the end of a mechanical arm, moves on the surface of a target object and projects clear shadows or highlights. Another fixed camera captures the dynamic changes of the light and shadow features, and through a learning model, the surface normal and depth information of the object which is invisible to both the light source and the camera are inverted. Passive observation is changed to active detection, and the dynamic light and shadow are projected by the mechanical arm to analyze the three-dimensional geometry of the textureless or highly reflective object. Without relying on the texture of the object itself, the reconstruction problem of structured light and multi-view stereo vision on textureless objects is solved. The active movement of the mechanical arm driving the point light source increases the dimension of light and shadow information from 2D to 3D, provides more abundant constraint conditions and significantly improves the inversion accuracy of the normal and depth. The double-branch deep learning model based on the attention mechanism, combined with bilateral filtering and guided filtering post-processing, improves the reconstruction accuracy.

The application provides a spiral phase contrast filter microscopic imaging system for improving AI recognition rate of biological cells, which comprises a light source, a pinhole diaphragm, a microscopic imaging system, a spiral phase plate and a charge coupled device (CCD), wherein the microscopic imaging system comprises a first condenser, a second condenser, a sample stage, an objective lens, a first mirror, a second mirror and a third condenser; the light beam of the light source is gathered after passing through the first condenser and passes through the pinhole diaphragm; the pinhole diaphragm converts the light beam of the light source into a point light source; the light beam of the point light source is parallelly irradiated onto the sample stage after passing through the second condenser; the spiral phase plate is located on the conjugate plane of the point light source emitted by the pinhole diaphragm and is used for performing radial Hilbert transform processing on the image in the frequency domain; the application can obtain an edge-enhanced image in the final imaging, and the application of the image to an AI recognition algorithm can significantly improve the recognition rate; compared with a bright field image, the AI recognition success rate of the application is greatly improved.

The present application relates to the technical field of rearview mirror field of view calibration, and discloses a kind of automobile field of view calibration method, including left side field of view calibration method: obtaining left side rearview mirror area data;Extract left side door frame strip area curved surface;With driver eye point as point light source, obtain the reflection curve that the point on left side door frame strip area curved surface meets certain incidence angle is connected;The reflection curve obtained is reduced and enlarged, and first reflection curve and second reflection curve are obtained;Make the tangent plane of connecting first reflection curve and second reflection curve;The distance from tangent plane to left side rearview mirror mirror shell is measured, if distance is greater than preset value then meet left side man-machine field of view requirement.In addition, the present application also provides right side field of view calibration method.The present application can guarantee that there is obvious gap between A column and left side rearview mirror mirror shell for observing road conditions when turning, and right side rearview mirror lens is not completely blocked by A column and glass outer clamping strip, to improve automobile A column field of view visual comfort and driving safety.