System, method and device for aligning polarizer array with photosensitive target surface of camera

Abstract

The present invention provides a system, method, and apparatus for aligning a polarizer array with a camera's photosensitive target surface, relating to the technical field of optical components. During precise alignment, a controller controls a first displacement automatic control platform and / or a second displacement automatic control platform to vertically adjust the distance between the polarizer array and the camera's photosensitive target surface based on the positions of the camera and the polarizer array, and controls a built-in track rotation clamp to adjust the horizontal rotation angle of the polarizer array until the distance is less than or equal to a first distance threshold, and the clarity corresponding to the polarizer array included in the adjusted real-time display image of the camera exceeds the first clarity threshold. The controller also controls the second displacement automatic control platform to adjust the camera's rotation angle and horizontal position based on the brightness of the camera's real-time display image, so that pixels in the adjusted real-time display image are aligned with polarization subunits in the polarizer array, thereby improving alignment accuracy.

Description

Technical Field

[0001] The present invention relates to the technical field of optical elements, and in particular to an alignment system, method and equipment for a polarizing plate array and a photosensitive target surface of a camera. Background Art

[0002] Compared to traditional images, polarization images can better supplement missing information in traditional images, such as the material and tissue properties, surface roughness, and structural composition of the target. Currently, a common method for obtaining polarization images is to encapsulate a polarizer on the camera's photosensitive target surface to form a pixel polarization camera, which can then capture polarization images.

[0003] However, when mounting the polarizer on the camera's photosensitive target, it is necessary to ensure that the camera's pixels are precisely aligned with the polarization units in the polarizer array. If this alignment is not accurate, moiré patterns will appear. Moiré patterns are a type of high-frequency interference that can cause crosstalk between adjacent pixel units in a polarization camera, resulting in poor image quality.

[0004] Therefore, how to control the precise alignment of the camera's pixels with the polarization units in the polarizer array is an urgent problem to be solved by those skilled in the art. Summary of the Invention

[0005] The present invention provides a system, method and device for aligning a polarizer array with a photosensitive target surface of a camera, which can better control the precise alignment of camera pixels with polarization units in the polarizer array, thereby improving the alignment accuracy.

[0006] The present invention provides an alignment system for a polarizing plate array and a photosensitive target surface of a camera, comprising: a controller, a first displacement automatic control platform, a built-in track rotation clamp, and a second displacement automatic control platform respectively connected to the controller, a polarizing plate array arranged below the built-in track rotation clamp, and a camera fixedly arranged on the second displacement automatic control platform; the polarizing plate array is located above the camera and connected to the built-in track rotation clamp, and the built-in track rotation clamp is mounted on the first displacement automatic control platform.

[0007] The controller is configured to control the first automatic displacement control platform and / or the second automatic displacement control platform to vertically adjust the distance between the polarizer array and the photosensitive target surface of the camera based on the positions of the camera and the polarizer array, and to control the built-in track rotation clamp to adjust the horizontal rotation angle of the polarizer array until the distance is less than or equal to a first distance threshold, and the real-time display image of the camera after adjustment includes the polarizer array, and the clarity corresponding to the polarizer array is greater than the first clarity threshold.

[0008] The controller is further used to control the second displacement automatic control platform to adjust the rotation angle and horizontal position of the camera based on the brightness of the real-time display image of the camera, so that after the adjustment, the pixels in the real-time display image of the camera are aligned with the polarization sub-units in the polarizer array.

[0009] According to the alignment system for a polarizer array and a photosensitive target surface of a camera provided by the present invention, the built-in track rotation clamp includes an external track rotation component and a built-in track fixing component.

[0010] In which, the built-in rail fixing part is coupled with the external rail rotating part through a coupling part, and the coupling part is fixedly arranged on the outer periphery of the external rail rotating part. The inner ring part of the built-in rail fixing part has a slide rail coupled with the external rail rotating part, and the built-in rail fixing part and the external rail rotating part can change their positions relative to the slide rail through the coupling part.

[0011] According to a system for aligning a polarizer array and a photosensitive target surface of a camera provided by the present invention, a fixing part is provided on the external orbital rotating part, and the fixing part is used to fix the relative position of the external orbital rotating part and the internal orbital fixing part. After fixation, the position of the external orbital rotating part and the position of the internal orbital fixing part are fixed.

[0012] According to a system for aligning a polarizer array with a photosensitive target surface of a camera provided by the present invention, the controller is specifically configured to, based on the positions of the camera and the polarizer array, control the first displacement automatic control platform and / or the second displacement automatic control platform to reduce the distance between the polarizer array and the photosensitive target surface of the camera in the vertical direction, so that the polarizer array gradually approaches the photosensitive target surface of the camera, and control the built-in track rotation clamp to adjust the horizontal rotation angle of the polarizer array, so that the edge of the polarizer array after adjustment is parallel to the corresponding edge of the real-time display image of the camera;

[0013] The controller is specifically used to continue controlling the first displacement automatic control platform and / or the second displacement automatic control platform to gradually reduce the distance between the polarizer array and the photosensitive target surface of the camera in the vertical direction until the distance is less than or equal to a first distance threshold.

[0014] According to a system for aligning a polarizer array with a photosensitive target surface of a camera provided by the present invention, the controller is specifically used to control the second displacement automatic control platform to execute, based on the brightness of the real-time display image of the camera: S1, adjusting the rotation angle of the camera, so that the brightness difference of the real-time display image of the camera after adjustment is less than a first brightness threshold; S2, adjusting the horizontal position of the camera, so that the brightness of the real-time display image of the camera after adjustment is greater than a second brightness threshold; S3, based on the gradually enlarged real-time display image of the camera, continuing to adjust the horizontal position of the camera until the pixels in the real-time display image of the camera after adjustment are aligned with the polarization subunits in the polarizer array.

[0015] According to the present invention, a polarizer array and a camera's photosensitive target surface alignment system is provided. The alignment system also includes an electronic device with a display screen larger than a preset threshold, and the electronic device is connected to the camera and the controller respectively.

[0016] The electronic device is configured to receive the real-time display image of the camera and display the real-time display image of the camera in a gradually enlarged manner.

[0017] The controller is specifically configured to control the second automatic displacement control platform to continue adjusting the horizontal position of the camera based on the gradually enlarged real-time display image displayed by the electronic device.

[0018] The controller is specifically configured to determine, based on the multiple images captured by the adjusted camera at different angles, the brightness corresponding to each of the multiple images and the extinction ratio corresponding to the adjusted camera; and determine, based on the brightness corresponding to each of the multiple images and the extinction ratio corresponding to the adjusted camera, whether to control the second displacement automatic control platform to repeatedly execute steps S1-S3 to adjust the rotation angle and horizontal position of the camera.

[0019] According to the present invention, a polarizer array and a camera's photosensitive target surface alignment system is provided, wherein the alignment system further comprises an electrically rotatable polarizer disposed above the built-in track rotation clamp.

[0020] The camera is further configured to capture multiple images at different angles when the electrically rotatable polarizer is rotated to different angles.

[0021] The controller is specifically configured to determine, based on the multiple images captured by the adjusted camera at different angles, the brightness corresponding to each of the multiple images and the extinction ratio corresponding to the adjusted camera; and, based on the brightness corresponding to each of the multiple images, determine whether there are a preset number of images each having a brightness greater than a third brightness threshold, and a brightness difference between the preset images less than a fourth brightness threshold, and determine whether the extinction ratio corresponding to the adjusted camera is greater than or equal to the extinction ratio threshold.

[0022] The controller controls the second displacement automatic control platform to stop executing S1-S3 to adjust the rotation angle and horizontal position of the camera when it is determined that the brightness corresponding to each of the preset number of images is greater than the third brightness threshold, the brightness difference between the preset images is less than the fourth brightness threshold, and the extinction ratio is greater than or equal to the extinction ratio threshold.

[0023] The controller, specifically, when it is determined that none of the preset number of images have brightness corresponding to each image greater than the third brightness threshold, and the brightness difference between the preset images is less than the fourth brightness threshold, and / or the extinction ratio is less than the extinction ratio threshold, controls the second displacement automatic control platform to repeatedly execute S1-S3 to adjust the rotation angle and horizontal position of the camera until, among the preset number of images captured by the adjusted camera, there are images each corresponding to the preset number of images greater than the third brightness threshold, and the brightness difference between the preset images is less than the fourth brightness threshold, and the extinction ratio is greater than or equal to the extinction ratio threshold.

[0024] According to the present invention, a system for aligning a polarizer array with a photosensitive target surface of a camera is provided. The system further includes an automatic glue-dropping device connected to the controller.

[0025] In which, the controller adjusts the distance between the polarizer array and the photosensitive target surface of the camera in the vertical direction, and when the distance between the polarizer array and the camera is equal to a second distance threshold, controls the automatic glue dripping device to drip curing glue on the photosensitive target surface of the camera, the measurement of the curing glue is determined according to the area of the photosensitive target surface of the camera, and the second distance threshold is greater than the first distance threshold.

[0026] According to the present invention, a polarizer array and a camera's photosensitive target surface alignment system is provided, the polarizer array and the camera's photosensitive target surface alignment system also includes a light source and a filter switch connected to the controller, the light source is arranged above the built-in orbital rotating clamp, the filter switch is arranged between the light source and the built-in orbital rotating clamp, and the filter switch has bandpass filters of multiple bands.

[0027] The controller is further configured to control the filter switch to switch a bandpass filter of a certain wavelength band while controlling the light source to operate.

[0028] The present invention also provides a method for aligning a polarizer array with a photosensitive target surface of a camera, which is applied to the alignment system of the polarizer array with the photosensitive target surface of the camera, and the method comprises:

[0029] Based on the position of the camera and the polarizer array, the distance between the polarizer array and the photosensitive target surface of the camera is adjusted in the vertical direction, and the horizontal rotation angle of the polarizer array is adjusted until the distance is less than or equal to a first distance threshold. After the adjustment, the real-time display image of the camera includes the polarizer array, and the clarity corresponding to the polarizer array is greater than the first clarity threshold.

[0030] Based on the brightness of the real-time display image of the camera, the rotation angle and the horizontal position of the camera are adjusted, and after the adjustment, the pixels in the real-time display image of the camera are aligned with the polarization subunits in the polarizer array.

[0031] According to a method for aligning a polarizer array with a photosensitive target surface of a camera provided by the present invention, the method vertically adjusts the distance between the polarizer array and the photosensitive target surface of the camera based on the position of the camera and the polarizer array, and adjusts the horizontal rotation angle of the polarizer array, including:

[0032] Based on the positions of the camera and the polarizer array, the distance between the polarizer array and the photosensitive target surface of the camera is reduced in the vertical direction. As the polarizer array gradually approaches the photosensitive target surface of the camera, the horizontal rotation angle of the polarizer array is adjusted. After adjustment, the edge of the polarizer array is parallel to the corresponding edge of the real-time display image of the camera.

[0033] Continue to gradually reduce the distance between the polarizer array and the photosensitive target surface of the camera in the vertical direction until the distance is less than or equal to a first distance threshold.

[0034] According to a method for aligning a polarizer array with a photosensitive target surface of a camera provided by the present invention, the method comprises adjusting the rotation angle and horizontal position of the camera based on the brightness of the real-time display image of the camera, and aligning the pixels in the real-time display image of the camera with the polarization subunits in the polarizer array after the adjustment, including:

[0035] S1. Adjust the rotation angle of the camera, so that the brightness difference of the real-time display image of the camera after adjustment is less than a first brightness threshold.

[0036] S2. Adjust the horizontal position of the camera, so that the brightness of the real-time display image of the camera after adjustment is greater than a second brightness threshold.

[0037] S3. Based on the gradually enlarged real-time display image of the camera, continue to adjust the horizontal position of the camera until the pixels in the real-time display image of the camera after adjustment are aligned with the polarization subunits in the polarizer array.

[0038] According to a method for aligning a polarizer array with a photosensitive target surface of a camera provided by the present invention, the method further comprises: adjusting the horizontal position of the camera based on a gradually enlarged real-time display image of the camera until pixels in the real-time display image of the camera are aligned with polarization subunits in the polarizer array after adjustment; the method comprises:

[0039] Based on the gradually enlarged real-time display image of the camera, the horizontal position of the camera is continued to be adjusted, and based on the multiple images at different angles captured by the adjusted camera, the brightness corresponding to each of the multiple images and the extinction ratio corresponding to the adjusted camera are respectively determined.

[0040] According to the brightness corresponding to each of the multiple images and the adjusted extinction ratio corresponding to the camera, it is determined whether to repeat the above steps S1 to S3 to adjust the rotation angle and horizontal position of the camera.

[0041] According to a method for aligning a polarizer array with a photosensitive target surface of a camera provided by the present invention, determining whether to repeatedly perform steps S1-S3 to adjust the rotation angle and horizontal position of the camera based on the brightness corresponding to each of the multiple images and the adjusted extinction ratio corresponding to the camera includes:

[0042] Based on the brightness corresponding to each of the multiple images, it is determined whether there are a preset number of images whose corresponding brightness is greater than a third brightness threshold, and the brightness difference between the preset images is less than a fourth brightness threshold, and it is determined whether the extinction ratio corresponding to the adjusted camera is greater than or equal to the extinction ratio threshold.

[0043] When it is determined that the brightness corresponding to each of the preset number of images is greater than the third brightness threshold, the brightness difference between the preset images is less than the fourth brightness threshold, and the extinction ratio is greater than or equal to the extinction ratio threshold, stop executing the above S1-S3 to adjust the rotation angle and horizontal position of the camera.

[0044] When it is determined that none of the preset number of images have brightness corresponding to each image greater than the third brightness threshold, and the brightness difference between the preset images is less than the fourth brightness threshold, and / or the extinction ratio is less than the extinction ratio threshold, the above steps S1-S3 are repeatedly performed to adjust the rotation angle and horizontal position of the camera until, among the preset number of images captured by the adjusted camera, there are images each having brightness corresponding to the preset number of images greater than the third brightness threshold, and the brightness difference between the preset images is less than the fourth brightness threshold, and the extinction ratio is greater than or equal to the extinction ratio threshold.

[0045] The present invention also provides an electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the program, the method for aligning the polarizer array with the photosensitive target surface of the camera as described in any one of the above is implemented.

[0046] The present invention also provides a non-transitory computer-readable storage medium having a computer program stored thereon. When the computer program is executed by a processor, the method for aligning the polarizer array with the photosensitive target surface of a camera as described in any one of the above is implemented.

[0047] The present invention also provides a computer program product, comprising a computer program, wherein when the computer program is executed by a processor, the computer program implements any of the above-described methods for aligning a polarizer array with a photosensitive target surface of a camera.

[0048] The present invention provides a system, method and device for aligning a polarizer array with a photosensitive target surface of a camera. The system for aligning a polarizer array with a photosensitive target surface of a camera comprises: a controller, a first displacement automatic control platform connected to the controller, a built-in track rotating clamp and a second displacement automatic control platform, a polarizer array arranged below the built-in track rotating clamp, and a camera fixedly arranged on the second displacement automatic control platform. When precisely aligning pixels in the camera's real-time display image with polarization subunits in the polarizer array, the controller controls the first displacement automatic control platform and / or the second displacement automatic control platform to adjust the distance between the polarizer array and the camera's photosensitive target surface in the vertical direction based on the positions of the camera and the polarizer array, and controls the built-in track rotation clamp to adjust the horizontal rotation angle of the polarizer array until the distance is less than or equal to a first distance threshold, and the real-time display image of the camera after adjustment includes the polarizer array, and the clarity corresponding to the polarizer array is greater than the first clarity threshold; the controller controls the second displacement automatic control platform to adjust the rotation angle and horizontal position of the camera based on the brightness of the camera's real-time display image, so that the pixels in the camera's real-time display image after adjustment are aligned with the polarization subunits in the polarizer array. In this way, by adjusting the rotation angle and horizontal position of the camera based on the brightness of the camera's real-time display image, the pixels of the camera can be better controlled to be precisely aligned with the polarization subunits in the polarizer array, thereby effectively improving the alignment accuracy, effectively reducing signal crosstalk, and improving the extinction ratio and packaging yield. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction is given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0050] Figure 1 A schematic diagram of the structure of the alignment system between the polarizer array and the photosensitive target surface of a camera provided by an embodiment of the present invention;

[0051] Figure 2 A schematic diagram of the overall structure of a built-in track rotary clamp provided by an embodiment of the present invention being fixed by a fixing member;

[0052] Figure 3 A schematic structural diagram of an external track rotating member provided in an embodiment of the present invention;

[0053] Figure 4 A schematic diagram of the structure of the built-in rail fixing member provided in an embodiment of the present invention

[0054] Figure 5A schematic diagram of the overall structure of the built-in track rotary clamp provided by an embodiment of the present invention when not fixed by a fixing member;

[0055] Figure 6 A schematic diagram of a real-time display image of a camera provided by an embodiment of the present invention;

[0056] Figure 7 An image captured by the packaged polarization camera provided in an embodiment of the present invention;

[0057] Figure 8 An enlarged image of an image captured by the packaged polarization camera provided in an embodiment of the present invention;

[0058] Figure 9 A distribution diagram of the extinction ratio of the packaged polarization camera provided by an embodiment of the present invention;

[0059] Figure 10 A schematic flow chart of a method for aligning a polarizer array with a photosensitive target surface of a camera provided by an embodiment of the present invention;

[0060] Figure 11 The following is a schematic diagram of the physical structure of an electronic device.

[0061] Reference numerals:

[0062] 110: Controller; 120: First displacement automatic control platform; 130: Built-in track rotation clamp; 140: Second displacement automatic control platform; 150: Polarizer array; 160: Camera; 170: Electric rotating polarizer; 180: Light source; 190: Filter switcher; 210: Built-in track fixing part; 220: External track rotating part; 230: Fixing part; 240: Coupling part. DETAILED DESCRIPTION

[0063] To make the objectives, technical solutions, and advantages of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0064] In the embodiments of the present invention, "at least one" refers to one or more, and "more than one" refers to two or more. "And / or" describes the relationship between associated objects, indicating that three possible relationships exist. For example, "A and / or B" can mean: A exists alone, A and B exist simultaneously, or B exists alone. A and B can be singular or plural. In the text descriptions of the present invention, the character " / " generally indicates that the associated objects are in an "or" relationship.

[0065] Optical components are used in various optical instruments and systems, playing an indispensable role in all sectors of the national economy. Traditional optical components are based on the refraction, reflection, or diffraction of light. Changes in the amplitude, phase, and polarization state of incident light are gradually accumulated along the optical path. However, of the many characteristic quantities of light, only amplitude and wavelength can be used as information carriers. The information carried by phase and polarization state is lost in conventional imaging due to the physiological limitations of the human eye.

[0066] Compared to traditional commercial cameras, polarization cameras can better supplement information missing from conventional imaging, such as material and tissue properties, surface roughness, structural composition, and three-dimensional shape. Currently, a common method for acquiring polarization images using commercial charge-coupled device (CCD) or complementary metal oxide semiconductor (CMOS) camera sensors is time-spectroscopic polarization imaging, which involves rotating a polarizer placed in front of the camera. While this method is relatively simple in terms of system design and data reduction, it is time-consuming and can cause projection errors in the scene onto the camera. Another common method is focal plane spectroscopic polarization imaging measurement, known as a pixel polarization camera. This method aligns the polarization subunits in the polarizer array onto the camera's pixels. This pixel polarization camera has a simple structure, a small field of view error, can measure dynamic targets, and is time-efficient.

[0067] A key technical challenge in the production of pixel-based polarization cameras is achieving precise alignment between the camera's pixels and the polarization subunits in the polarizer array. If these are not precisely aligned, moiré patterns will appear. Moiré patterns are high-frequency interference that can cause crosstalk between adjacent pixel units in a polarization camera, resulting in poor image quality and an inability to clearly capture image detail.

[0068] Therefore, in order to avoid moiré patterns during the packaging of pixel polarization cameras, it is necessary to precisely align the camera's pixels with the polarization units in the polarizer array. To precisely align the camera's pixels with the polarization units in the polarizer array, thereby improving alignment accuracy, embodiments of the present invention provide an alignment system for a polarizer array and a camera's photosensitive target surface. The alignment system for a polarizer array and a camera's photosensitive target surface provided by the present invention will be described in detail below through specific embodiments. It is understood that the following specific embodiments may be combined with one another, and that the same or similar concepts or processes may not be described in detail in some embodiments.

[0069] Figure 1 This is a schematic diagram of the structure of the alignment system between the polarizer array and the photosensitive target surface of the camera provided in an embodiment of the present invention. For example, see Figure 1 As shown, the alignment system of the polarizer array and the photosensitive target surface of the camera may include: a controller 110, a first displacement automatic control platform 120 connected to the controller 110 respectively, a built-in orbital rotation clamp 130 and a second displacement automatic control platform 140, a polarizer array 150 arranged below the built-in orbital rotation clamp 130, and a camera 160 fixedly arranged on the second displacement automatic control platform 140; the polarizer array 150 is located above the camera 160 and is connected to the built-in orbital rotation clamp 130, and the built-in orbital rotation clamp 130 is installed on the first displacement automatic control platform 120.

[0070] The controller 110 is configured to control the first automatic displacement control platform 120 and / or the second automatic displacement control platform 140 to vertically adjust the distance between the polarizer array 150 and the photosensitive target surface of the camera 160 based on the positions of the camera 160 and the polarizer array 150, and to control the built-in track rotation clamp 130 to adjust the horizontal rotation angle of the polarizer array 150 until the distance is less than or equal to a first distance threshold. After the adjustment, the real-time display image of the camera 160 includes the polarizer array 150, and the clarity corresponding to the polarizer array 150 is greater than the first clarity threshold.

[0071] The controller 110 is also used to control the second displacement automatic control platform 140 to adjust the rotation angle and horizontal position of the camera 160 based on the brightness of the real-time display image of the camera 160, so that the pixels in the real-time display image of the camera 160 are aligned with the polarization sub-units in the polarizer array 150 after adjustment.

[0072] For example, the first automatic displacement control platform 120 can be a three-axis automatic displacement control platform with at least three axes, that is, it can be a three-axis automatic displacement control platform or a six-axis automatic displacement control platform; the second automatic displacement control platform 140 can be a six-axis automatic displacement control platform, or a multi-axis automatic displacement control platform, and can be configured according to actual needs. For example, in the embodiments of the present invention, the first automatic displacement control platform 120 is a three-axis automatic displacement control platform, and the second automatic displacement control platform 140 is a six-axis automatic displacement control platform. However, this does not mean that the embodiments of the present invention are limited to this example.

[0073] For example, the polarizer unit in the polarizer array 150 may be a 2×2 polarizer unit, and the polarization directions of the four polarizer subunits in the polarizer unit are different, namely 0, π / 4, π / 2, and 3π / 4.

[0074] For example, the alignment system of the polarizer array 150 and the camera 160 also includes a light source 180 and a filter switch 190 respectively connected to the controller 110; wherein, the light source 180 is arranged above the built-in orbital rotating clamp 130, and the filter switch 190 is arranged between the light source 180 and the built-in orbital rotating clamp 130, and the filter switch 190 has bandpass filters of multiple bands.

[0075] The controller 110 is further configured to control the filter switch 190 to switch a bandpass filter of a certain wavelength band when controlling the light source 180 to operate.

[0076] Along the light beam output from light source 180, a built-in orbital rotation holder 130, a polarizer array 150, a camera 160, and a second displacement automatic control platform 140 are sequentially arranged. Built-in orbital rotation holder 130 rotates in all directions in space and is mounted on first displacement automatic control platform 120, which can move in the X, Y, and Z directions. Camera 160 is mounted on second displacement automatic control platform 140, which can move in the X, Y, and Z directions and rotate within the XY, YZ, and XZ planes.

[0077] For example, in the embodiment of the present invention, the internal track rotating clamp 130 includes an external track rotating member 220 and an internal track fixing member 210. For example, see Figure 2 As shown, Figure 2 This is a schematic diagram of the overall structure of the internal track rotating clamp provided by the embodiment of the present invention, which is fixed by the fixing member 230. In particular, the internal track fixing member 210 is coupled with the external track rotating member 220 via a coupling member 240. The coupling member 240 is fixedly arranged on the outer periphery of the external track rotating member 220. The inner ring portion of the internal track fixing member 210 has a slide rail coupled with the external track rotating member 220. For example, see Figure 3 and Figure 4 As shown, Figure 3 This is a schematic diagram of the structure of the external track rotating member provided in an embodiment of the present invention. Figure 4 This is a schematic diagram of the structure of the internal track fixing member provided by an embodiment of the present invention. The internal track fixing member 210 and the external track rotating member 220 can change their positions relative to the slide rail via a coupling 240. Typically, the internal track fixing member 210 and the external track rotating member 220 rotate relative to each other, with the internal track fixing member 210 being stationary and the external track rotating member 220 being rotatable.

[0078] Combined with the above Figure 4As shown, for example, the coupling member 240 can be a retractable roller. During the process of coupling the external track rotating member 220 to the internal track fixing member 210, the roller can be subjected to an external force in the center direction of the external track rotating member 220 and pressed into the external track rotating member 220; after the external track rotating member 220 is pressed and coupled to the internal track fixing member 210, the roller can be subjected to an external force in the center direction of the external track rotating member 220 and pulled out and coupled into the track of the internal track fixing member 210. For example, see Figure 5 As shown, Figure 5 The schematic diagram of the overall structure of the built-in orbital rotating clamp provided in an embodiment of the present invention is not fixed by the fixing part. It can be seen that the external orbital rotating part 220 is configured with a coupling part 230, which can rotate along the radial direction of the built-in orbital rotating clamp to match and couple the external orbital rotating part 220 with the built-in orbital fixing part 210; for example, a fixing part 230 is provided on the built-in orbital fixing part 210, and the fixing part 230 is used to fix the relative position of the external orbital rotating part 220 and the built-in orbital fixing part 210. After fixation, the position of the external orbital rotating part 220 is fixed to the position of the built-in orbital fixing part 210, so that the two do not move relative to each other.

[0079] For example, the built-in track rotating clamp can be mounted on the first displacement automatic control platform via a connecting rod. The connecting rod can be used to construct various optical paths, not limited to the optical path configuration shown in the above figure. For example, the connecting rod can be a four-way adjustable connector, which can adjust the vertical and horizontal pitch of the track rotating clamp 130, thereby simplifying the optical path.

[0080] For example, when the controller 110 controls the first displacement automatic control platform 120 and / or the second displacement automatic control platform 140 to adjust the distance between the polarizer array 150 and the photosensitive target surface of the camera 160 in the vertical direction based on the positions of the camera 160 and the polarizer array 150, and controls the built-in orbital rotation clamp 130 to adjust the horizontal rotation angle of the polarizer array 150, the controller 110 can first control the first displacement automatic control platform 120 and / or the second displacement automatic control platform 140 to reduce the distance between the polarizer array 150 and the camera 160 in the vertical direction based on the positions of the camera 160 and the polarizer array 150, so that the polarizer array 150 gradually approaches the photosensitive target surface of the camera 160, and in the process of the polarizer array 150 gradually approaching the photosensitive target surface of the camera 160, control the built-in orbital rotation clamp 130 to adjust the horizontal rotation angle of the polarizer array 150 so that the edge of the adjusted polarizer array 150 is parallel to the corresponding edge of the real-time display image of the camera 160.

[0081] When the adjusted side of polarizer array 150 is parallel to the corresponding side of the real-time image displayed by camera 160, controller 110 continues to control first automatic displacement control platform 120 and / or second automatic displacement control platform 140 to gradually decrease the distance between polarizer array 150 and the photosensitive target surface of camera 160 in the vertical direction, so that polarizer array 150 gradually approaches the photosensitive target surface of camera 160, until the distance between the photosensitive target surface of camera 160 and polarizer array 150 is less than or equal to a first distance threshold, the adjusted real-time image displayed by camera 160 includes polarizer array 150, and the clarity corresponding to polarizer array 150 is greater than the first clarity threshold. The values of the first distance threshold and the first clarity threshold can be set according to actual needs, and the embodiments of the present invention do not impose specific limitations on the values of the first distance threshold and the first clarity threshold.

[0082] For example, see Figure 6 As shown, Figure 6 Schematic diagram of the real-time display image of the camera provided in an embodiment of the present invention, the pixel of the camera 160 is 640×480, and taking the example of controlling only the first displacement automatic control platform 120 to gradually lower the height of the polarizer array 150, after the optical path is set up, the controller 110 can only control the first displacement automatic control platform 120 to gradually lower the height of the polarizer array 150 in the vertical direction, so that the polarizer array 150 gradually approaches the photosensitive target surface of the camera 160; and in the process of the polarizer array 150 gradually approaching the photosensitive target surface of the camera 160, the built-in track rotation clamp 130 is controlled to adjust The polarizer array 150 is rotated horizontally at an angle such that the adjusted side of the polarizer array 150 is parallel to the corresponding side of the real-time display image of the camera 160. The first automatic displacement control platform 120 is continuously controlled to gradually lower the height of the polarizer array 150 in the vertical direction so that the polarizer array 150 gradually approaches the photosensitive target surface of the camera 160 until the distance between the photosensitive target surface of the camera 160 and the polarizer array 150 is less than or equal to the first distance threshold, and the adjusted real-time display image of the camera 160 includes the polarization subunits 320, 330, 340, and 350 of the polarizer array 150.

[0083] After adjusting the distance between the photosensitive target surface of the camera 160 and the polarizer array 150, as well as the horizontal rotation angle of the polarizer array 150, the controller 110 can control the second displacement automatic control platform 140 to adjust the rotation angle and horizontal position of the camera 160 based on the brightness of the real-time display image of the camera 160, so that the pixels in the real-time display image of the adjusted camera 160 are aligned with the polarization sub-units in the polarizer array 150.

[0084] For example, when the controller 110 controls the second displacement automatic control platform 140 to adjust the rotation angle and horizontal position of the camera 160 based on the brightness of the real-time display image of the camera 160, it is specifically used to control the second displacement automatic control platform 140 to perform: S1, adjust the rotation angle of the camera 160, and the brightness difference of the real-time display image of the camera 160 after adjustment is less than the first brightness threshold, that is, the brightness of the real-time display image of the camera 160 after adjustment is relatively uniform; S2, adjust the horizontal position of the camera 160, and the brightness of the real-time display image of the camera 160 after adjustment is greater than the second brightness threshold; wherein the second brightness threshold is greater than the first brightness threshold; S3, based on the gradually enlarged real-time display image of the camera 160, continue to adjust the horizontal position of the camera 160 until the pixels in the real-time display image of the camera 160 after adjustment are aligned with the polarization sub-units in the polarizer array 150.

[0085] The value of the first brightness threshold and the value of the second brightness threshold can be set according to actual needs. Here, the embodiment of the present invention does not impose any specific restrictions on the value of the first brightness threshold and the value of the second brightness threshold.

[0086] For example, in an embodiment of the present invention, when adjusting the rotation angle of the camera 160, the rotation angle of the camera 160 can be adjusted in three directions: X, Y, and Z. The specific setting can be made according to actual needs. Here, the embodiment of the present invention does not make any specific restrictions.

[0087] For example, when the controller 110 controls the second displacement automatic control platform 140 to adjust the horizontal position of the camera 160 based on the gradually enlarged real-time display image of the camera 160, the alignment system between the polarizer array 150 and the camera 160 also includes an electronic device whose display screen is larger than a preset threshold, and the electronic device is connected to the camera 160 and the controller 110 respectively.

[0088] The electronic device is configured to receive the real-time display image of the camera 160 and display the real-time display image of the camera 160 which is gradually magnified.

[0089] The controller 110 is specifically configured to control the second displacement automatic control platform 140 to continue adjusting the horizontal position of the camera 160 based on the gradually enlarged real-time display image displayed by the electronic device.

[0090] The controller 110 is specifically configured to determine, based on the multiple images captured at different angles by the adjusted camera 160, the brightness corresponding to each of the multiple images and the extinction ratio corresponding to the adjusted camera 160; and determine, based on the brightness corresponding to each of the multiple images and the extinction ratio corresponding to the adjusted camera 160, whether to control the second displacement automatic control platform 140 to repeatedly execute the above-mentioned S1-S3 to adjust the rotation angle and horizontal position of the camera 160.

[0091] For example, the controller 110 may be a controller 110 independently provided in the electronic device, or may be a controller 110 in the electronic device. The controller 110 may be specifically provided according to actual needs, and is not specifically limited in the embodiment of the present invention.

[0092] For example, when the controller 110 determines the brightness corresponding to each of the multiple images and the extinction ratio corresponding to the adjusted camera 160 based on the multiple images at different angles captured by the adjusted camera 160, for example, the alignment system of the polarizer array 150 and the camera 160 also includes an electrically rotating polarizer 170 arranged above the built-in track rotating clamp 130.

[0093] The camera 160 is further configured to capture multiple images at different angles when the electrically rotatable polarizer 170 is rotated to different angles.

[0094] The controller 110 is specifically configured to determine, based on the multiple images captured at different angles by the adjusted camera 160, the brightness corresponding to each of the multiple images and the extinction ratio corresponding to the adjusted camera 160; and, based on the brightness corresponding to each of the multiple images, determine whether there are a preset number of images each having a brightness greater than a third brightness threshold, and a brightness difference between the preset images less than a fourth brightness threshold, and determine whether the extinction ratio corresponding to the adjusted camera 160 is greater than or equal to the extinction ratio threshold.

[0095] Specifically, when the controller 110 determines that there are a preset number of images each having a brightness greater than a third brightness threshold, and the brightness difference between the preset images is less than a fourth brightness threshold, and the extinction ratio is greater than or equal to the extinction ratio threshold, it indicates that the pixels in the real-time display image of the camera 160 and the polarization sub-units in the polarizer array 150 are aligned, the controller 110 controls the second displacement automatic control platform 140 to stop executing the above-mentioned S1-S3 to adjust the rotation angle and horizontal position of the camera 160.

[0096] Specifically, when the controller 110 determines that there are no preset number of images each having a brightness greater than the third brightness threshold, and the brightness difference between the preset images is less than the fourth brightness threshold, and / or the extinction ratio is less than the extinction ratio threshold, it indicates that the pixels in the real-time display image of the camera 160 are not aligned with the polarization subunits in the polarizer array 150. The controller 110 then controls the second automatic displacement control platform 140 to repeatedly execute S1-S3 to adjust the rotation angle and horizontal position of the camera 160 until, among the preset number of images captured by the adjusted camera 160, there are a preset number of images each having a brightness greater than the third brightness threshold, and the brightness difference between the preset images is less than the fourth brightness threshold, and the extinction ratio is greater than or equal to the extinction ratio threshold.

[0097] Among them, the value of the third brightness threshold, the value of the fourth brightness threshold and the value of the extinction ratio threshold can be set according to actual needs. Here, the embodiment of the present invention does not impose specific restrictions on the value of the third brightness threshold, the value of the fourth brightness threshold and the value of the extinction ratio threshold.

[0098] Based on the above description, in the process of the controller 110 controlling the first displacement automatic control platform 120 and / or the second displacement automatic control platform 140 to reduce the distance between the polarizer array 150 and the photosensitive target surface of the camera 160 in the vertical direction, it is considered that in addition to aligning the pixels in the real-time display image of the camera 160 with the polarization sub-units in the polarizer array 150, the polarizer array 150 also needs to be movably adhered to the upper surface of the photosensitive target surface. For example, the alignment system of the polarizer array 150 and the camera 160 also includes an automatic glue-dropping device connected to the controller 110.

[0099] The controller 110 is configured to control the automatic glue-dropping device to drip curing glue onto the photosensitive target surface of the camera 160 when the distance between the polarizer array 150 and the camera 160 is equal to a second distance threshold, as the polarizer array 150 gradually approaches the photosensitive target surface of the camera 160. The curing glue, as displayed by the real-time image displayed by the camera 160, gradually spreads onto the photosensitive target surface, so that the polarizer array 150 is movably adhered to the upper surface of the photosensitive target surface by the spread curing glue. In this way, the polarizer array 150 can be encapsulated by the spread curing glue. The second distance threshold is greater than the first distance threshold.

[0100] The amount of curing glue is set according to the area of the photosensitive target surface of the camera 160. For example, the curing glue can be UV curing glue or other curing glue, and can be set according to actual needs.

[0101] After the polarizer array 150 is packaged by spreading the curing adhesive, a packaged polarization camera can be obtained. The brightness of the image captured by the packaged polarization camera is uniform and there is no obvious moiré pattern. For example, see Figure 7 As shown, Figure 7 Schematic diagram of an image captured by a packaged polarization camera according to an embodiment of the present invention. After the image captured by the packaged polarization camera is enlarged, the enlarged image can be seen in FIG. Figure 8 As shown, Figure 8 The image captured by the packaged polarization camera provided by the embodiment of the present invention is magnified, combined with Figure 8 The four polarization states of one unit of the packaged polarization camera can be clearly seen.

[0102] In addition, the extinction ratio of the packaged polarization camera is also greatly improved. For example, Figure 9The distribution diagram of the extinction ratio of the packaged polarization camera provided by the embodiment of the present invention, combined with Figure 9 As shown, Figure 9 The X-axis and Y-axis are the horizontal and vertical directions of the polarization microscopy image, respectively, and the Z-axis is the measured extinction ratio. In the embodiment of the present invention, the extinction ratio of the polarization camera is about 20. Figure 7 、 Figure 8 as well as Figure 9 It can be clearly seen that the alignment system for the polarizer array 150 and the camera 160 provided in the embodiment of the present invention can accurately align the pixels in the real-time display image of the camera 160 with the polarization sub-units in the polarizer array 150, effectively reducing signal crosstalk, and the extinction ratio can reach above 20. Moreover, packaging based on the precise alignment results in images captured by the polarization camera with uniform brightness and good imaging quality, which meets the needs of automated packaging and integration of polarization cameras, thereby satisfying the packaging requirements of polarization cameras.

[0103] It can be seen that in the embodiment of the present invention, the alignment system of the polarizer array 150 and the camera 160 includes: a controller 110, a first displacement automatic control platform 120 connected to the controller 110, a built-in track rotation clamp 130, and a second displacement automatic control platform 140, a polarizer array 150 disposed below the built-in track rotation clamp 130, and a camera 160 fixedly disposed on the second displacement automatic control platform 140. When accurately aligning the pixels in the real-time display image of the camera 160 with the polarization subunits in the polarizer array 150, the controller 110 controls the first displacement automatic control platform 120 and / or the second displacement automatic control platform 140 to adjust the distance between the polarizer array 150 and the photosensitive target surface of the camera 160 in the vertical direction based on the positions of the camera 160 and the polarizer array 150, and controls the built-in track rotation clamp 130 to adjust the horizontal rotation angle of the polarizer array 150 until the distance is less than or equal to a first distance threshold. After the adjustment, the real-time display image of the camera 160 includes the polarizer array 150. , and the clarity corresponding to the polarizer array 150 is greater than the first clarity threshold; the controller 110 controls the second automatic displacement control platform 140 to adjust the rotation angle and horizontal position of the camera 160 based on the brightness of the real-time display image of the camera 160, so that the pixels in the real-time display image of the camera 160 after adjustment are aligned with the polarization sub-units in the polarizer array 150. In this way, by adjusting the rotation angle and horizontal position of the camera 160 based on the brightness of the real-time display image of the camera 160, the pixels of the camera 160 can be better controlled to be precisely aligned with the polarization units in the polarizer array 150, thereby effectively improving the alignment accuracy.

[0104] Figure 10This is a flow chart of a method for aligning a polarizer array with a camera's photosensitive target surface provided by an embodiment of the present invention. This method for aligning a polarizer array with a camera's photosensitive target surface can be performed by the aforementioned alignment system for aligning a polarizer array with a camera's photosensitive target surface. For example, see Figure 10 As shown, the method for aligning the polarizer array with the photosensitive target surface of the camera may include:

[0105] S1001. Adjust the distance between the polarizer array and the photosensitive target surface of the camera in the vertical direction based on the position of the camera and the polarizer array, and adjust the horizontal rotation angle of the polarizer array until the distance is less than or equal to a first distance threshold. After the adjustment, the real-time display image of the camera includes the polarizer array, and the clarity corresponding to the polarizer array is greater than the first clarity threshold.

[0106] S1002 : Based on the brightness of the real-time display image of the camera, adjust the rotation angle and horizontal position of the camera, so that the pixels in the real-time display image of the camera are aligned with the polarization subunits in the polarizer array after the adjustment.

[0107] Optionally, adjusting the distance between the polarizer array and the photosensitive target surface of the camera in the vertical direction based on the position of the camera and the polarizer array, and adjusting the horizontal rotation angle of the polarizer array, includes:

[0108] Based on the position of the camera and the polarizer array, the distance between the polarizer array and the camera's photosensitive target surface is reduced in the vertical direction. As the polarizer array gradually approaches the camera's photosensitive target surface, the horizontal rotation angle of the polarizer array is adjusted. After adjustment, the edge of the polarizer array is parallel to the corresponding edge of the camera's real-time display image.

[0109] Continue to gradually reduce the distance between the polarizer array and the photosensitive target surface of the camera in the vertical direction until the distance is less than or equal to the first distance threshold.

[0110] Optionally, adjusting the rotation angle and horizontal position of the camera based on the brightness of the real-time display image of the camera, so that pixels in the real-time display image of the camera are aligned with polarization subunits in the polarizer array after the adjustment, includes:

[0111] S1. Adjust the rotation angle of the camera, and after the adjustment, the brightness difference of the real-time display image of the camera is less than a first brightness threshold.

[0112] S2. Adjust the horizontal position of the camera, so that the brightness of the real-time display image of the camera after adjustment is greater than a second brightness threshold.

[0113] S3. Based on the gradually enlarged real-time display image of the camera, continue to adjust the horizontal position of the camera until the pixels in the real-time display image of the camera after adjustment are aligned with the polarization subunits in the polarizer array.

[0114] Optionally, based on the gradually enlarged real-time display image of the camera, continuously adjusting the horizontal position of the camera until pixels in the adjusted real-time display image of the camera are aligned with polarization subunits in the polarizer array, comprising:

[0115] Based on the gradually enlarged real-time display image of the camera, the horizontal position of the camera is continuously adjusted, and based on the multiple images at different angles captured by the adjusted camera, the brightness corresponding to each of the multiple images and the extinction ratio corresponding to the adjusted camera are respectively determined.

[0116] According to the brightness corresponding to each of the multiple images and the extinction ratio corresponding to the adjusted camera, it is determined whether to repeat the above steps S1 to S3 to adjust the rotation angle and horizontal position of the camera.

[0117] Optionally, determining whether to repeatedly perform S1-S3 to adjust the rotation angle and horizontal position of the camera according to the brightness corresponding to each of the multiple images and the extinction ratio corresponding to the adjusted camera includes:

[0118] Based on the brightness corresponding to each of the multiple images, it is determined whether there are a preset number of images whose corresponding brightness is greater than a third brightness threshold, and the brightness difference between the preset images is less than a fourth brightness threshold, and whether the extinction ratio corresponding to the adjusted camera is greater than or equal to the extinction ratio threshold.

[0119] When it is determined that there are a preset number of images, each of which has a brightness greater than the third brightness threshold, and the brightness difference between the preset images is less than the fourth brightness threshold, and the extinction ratio is greater than or equal to the extinction ratio threshold, stop executing the above S1-S3 to adjust the rotation angle and horizontal position of the camera.

[0120] If it is determined that there are not a preset number of images each having a brightness greater than the third brightness threshold, and the brightness difference between the preset images is less than the fourth brightness threshold, and / or the extinction ratio is less than the extinction ratio threshold, the above steps S1-S3 are repeatedly performed to adjust the rotation angle and horizontal position of the camera until, among the preset number of images captured by the adjusted camera, there are a preset number of images each having a brightness greater than the third brightness threshold, and the brightness difference between the preset images is less than the fourth brightness threshold, and the extinction ratio is greater than or equal to the extinction ratio threshold.

[0121] The implementation principle and beneficial effects of the method for aligning the polarizer array and the photosensitive target surface of the camera provided in an embodiment of the present invention are similar to the implementation principle and beneficial effects of the alignment system of the polarizer array and the photosensitive target surface of the camera mentioned above. Please refer to the implementation principle and beneficial effects of the alignment system of the polarizer array and the photosensitive target surface of the camera, and no further details will be given here.

[0122] Figure 11 An example of a physical structure diagram of an electronic device is shown below. Figure 11 As shown, the electronic device may include: a processor 1110, a communication interface 1120, a memory 1130, and a communication bus 1140, wherein the processor 1110, the communication interface 1120, and the memory 1130 communicate with each other via the communication bus 1140. The processor 1110 may call logic instructions in the memory 1130 to execute a method for aligning a polarizer array with a photosensitive target surface of a camera. The method includes: adjusting the distance between the polarizer array and the photosensitive target surface of the camera in a vertical direction based on the position of the camera and the polarizer array, and adjusting the horizontal rotation angle of the polarizer array until the distance is less than or equal to a first distance threshold, and the polarizer array is included in the real-time display image of the camera after the adjustment, and the clarity corresponding to the polarizer array is greater than the first clarity threshold; and adjusting the rotation angle and horizontal position of the camera based on the brightness of the real-time display image of the camera, so that the pixels in the real-time display image of the camera after the adjustment are aligned with the polarization subunits in the polarizer array.

[0123] In addition, the logic instructions in the above-mentioned memory 1130 can be implemented in the form of a software functional unit and can be stored in a computer-readable storage medium when sold or used as an independent product. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0124] On the other hand, the present invention also provides a computer program product, which includes a computer program, which can be stored on a non-transitory computer-readable storage medium. When the computer program is executed by a processor, the computer can execute the alignment method of the polarizer array and the photosensitive target surface of the camera provided by the above methods, the method including: adjusting the distance between the polarizer array and the photosensitive target surface of the camera in the vertical direction based on the position of the camera and the polarizer array, and adjusting the horizontal rotation angle of the polarizer array until the distance is less than or equal to a first distance threshold, and the real-time display image of the camera after adjustment includes the polarizer array, and the clarity corresponding to the polarizer array is greater than the first clarity threshold; based on the brightness of the real-time display image of the camera, adjusting the rotation angle and horizontal position of the camera, and aligning the pixels in the real-time display image of the camera after adjustment with the polarization sub-units in the polarizer array.

[0125] On the other hand, the present invention also provides a non-transitory computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, is implemented to execute the alignment method of the polarizer array and the photosensitive target surface of the camera provided by the above-mentioned methods, the method comprising: adjusting the distance between the polarizer array and the photosensitive target surface of the camera in the vertical direction based on the position of the camera and the polarizer array, and adjusting the horizontal rotation angle of the polarizer array until the distance is less than or equal to a first distance threshold, and the real-time display image of the camera after adjustment includes the polarizer array, and the clarity corresponding to the polarizer array is greater than the first clarity threshold; based on the brightness of the real-time display image of the camera, adjusting the rotation angle and horizontal position of the camera, and aligning the pixels in the real-time display image of the camera after adjustment with the polarization sub-units in the polarizer array.

[0126] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, i.e., they may be located in one location or distributed across multiple network units. Some or all of the modules may be selected based on actual needs to achieve the objectives of the present embodiment. Persons of ordinary skill in the art will be able to understand and implement the present invention without inventive effort.

[0127] Through the description of the above embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus a necessary general hardware platform, or of course, by hardware. Based on this understanding, the essence of the above technical solution or the part that contributes to the existing technology can be embodied in the form of a software product. The computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, a magnetic disk, an optical disk, etc., and includes a number of instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each embodiment or certain parts of the embodiments.

[0128] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A system for aligning a polarizer array with a photosensitive target surface of a camera, characterized in that: include: A controller, a first displacement automatic control platform, a built-in track rotating clamp, and a second displacement automatic control platform respectively connected to the controller, a polarizer array disposed below the built-in track rotating clamp, and a camera fixedly disposed on the second displacement automatic control platform; the polarizer array is located above the camera and connected to the built-in track rotating clamp, and the built-in track rotating clamp is mounted on the first displacement automatic control platform via a connecting rod using a four-way adjustable connector. The controller is specifically configured to control the first displacement automatic control platform and / or the second displacement automatic control platform to reduce the distance between the polarizer array and the photosensitive target surface of the camera in the vertical direction based on the positions of the camera and the polarizer array, and control the built-in track rotation clamp to adjust the horizontal rotation angle of the polarizer array in the process of the polarizer array gradually approaching the photosensitive target surface of the camera, so that the edge of the polarizer array after adjustment is parallel to the corresponding edge of the real-time display image of the camera; The controller is specifically configured to continue controlling the first automatic displacement control platform and / or the second automatic displacement control platform to gradually decrease the distance between the polarizer array and the photosensitive target surface of the camera in a vertical direction until the distance is less than or equal to a first distance threshold, and the real-time display image of the camera after adjustment includes the polarizer array, and the clarity corresponding to the polarizer array is greater than the first clarity threshold; The controller is further used to control the second displacement automatic control platform to adjust the rotation angle and horizontal position of the camera based on the brightness of the real-time display image of the camera, so that after the adjustment, the pixels in the real-time display image of the camera are aligned with the polarization sub-units in the polarizer array.

2. The alignment system for a polarizer array and a photosensitive target surface of a camera according to claim 1, characterized in that: The built-in track rotating clamp includes an external track rotating part and a built-in track fixing part; In which, the built-in rail fixing part is coupled with the external rail rotating part through a coupling part, and the coupling part is fixedly arranged on the outer periphery of the external rail rotating part. The inner ring part of the built-in rail fixing part has a slide rail coupled with the external rail rotating part, and the built-in rail fixing part and the external rail rotating part can change their positions relative to the slide rail through the coupling part.

3. The alignment system for a polarizer array and a photosensitive target surface of a camera according to claim 2, characterized in that: The external track rotating member is provided with a fixing member, and the fixing member is used to fix the relative position of the external track rotating member and the internal track fixing member. After fixation, the position of the external track rotating member and the position of the internal track fixing member are fixed.

4. The alignment system for a polarizer array and a photosensitive target surface of a camera according to any one of claims 1 to 3, characterized in that: The controller is specifically used to control the second displacement automatic control platform to execute, based on the brightness of the real-time display image of the camera: S1, adjusting the rotation angle of the camera, so that the brightness difference of the real-time display image of the camera after adjustment is less than a first brightness threshold; S2, adjusting the horizontal position of the camera, so that the brightness of the real-time display image of the camera after adjustment is greater than a second brightness threshold; S3, based on the gradually enlarged real-time display image of the camera, continuing to adjust the horizontal position of the camera until the pixels in the real-time display image of the camera after adjustment are aligned with the polarization sub-units in the polarizer array.

5. The alignment system for a polarizer array and a photosensitive target surface of a camera according to claim 4, characterized in that: The alignment system further includes an electronic device having a display screen larger than a preset threshold, the electronic device being connected to the camera and the controller respectively; The electronic device is configured to receive the real-time display image of the camera and display the real-time display image of the camera in a gradually enlarged manner; The controller is specifically configured to control the second automatic displacement control platform to continue adjusting the horizontal position of the camera based on the gradually enlarged real-time display image displayed by the electronic device; The controller is specifically configured to determine, based on the multiple images captured by the adjusted camera at different angles, the brightness corresponding to each of the multiple images and the extinction ratio corresponding to the adjusted camera; and determine, based on the brightness corresponding to each of the multiple images and the extinction ratio corresponding to the adjusted camera, whether to control the second displacement automatic control platform to repeatedly execute steps S1-S3 to adjust the rotation angle and horizontal position of the camera.

6. The alignment system for a polarizer array and a photosensitive target surface of a camera according to claim 5, characterized in that: The alignment system further includes a motorized rotating polarizer disposed above the built-in orbital rotating holder; The camera is further configured to capture multiple images at different angles when the electrically rotatable polarizer is rotated to different angles; The controller is specifically configured to determine, based on the multiple images at different angles captured by the adjusted camera, the brightness corresponding to each of the multiple images and the extinction ratio corresponding to the adjusted camera; and determining, based on the brightness corresponding to each of the plurality of images, whether there are a preset number of images each having a brightness greater than a third brightness threshold, and a brightness difference between the preset images being less than a fourth brightness threshold, and determining whether the extinction ratio corresponding to the adjusted camera is greater than or equal to the extinction ratio threshold; The controller controls the second displacement automatic control platform to stop executing steps S1-S3 to adjust the rotation angle and horizontal position of the camera when it is determined that the brightness corresponding to each of the preset number of images is greater than a third brightness threshold, the brightness difference between the preset images is less than a fourth brightness threshold, and the extinction ratio is greater than or equal to the extinction ratio threshold; The controller, specifically, when it is determined that none of the preset number of images have brightness corresponding to each image greater than the third brightness threshold, and the brightness difference between the preset images is less than the fourth brightness threshold, and / or the extinction ratio is less than the extinction ratio threshold, controls the second displacement automatic control platform to repeatedly execute S1-S3 to adjust the rotation angle and horizontal position of the camera until, among the preset number of images captured by the adjusted camera, there are images each corresponding to the preset number of images greater than the third brightness threshold, and the brightness difference between the preset images is less than the fourth brightness threshold, and the extinction ratio is greater than or equal to the extinction ratio threshold.

7. The alignment system for a polarizer array and a photosensitive target surface of a camera according to any one of claims 1 to 3, characterized in that: The alignment system between the polarizer array and the photosensitive target surface of the camera further includes an automatic glue-dropping device connected to the controller; In which, the controller adjusts the distance between the polarizer array and the photosensitive target surface of the camera in the vertical direction, and when the distance between the polarizer array and the camera is equal to a second distance threshold, controls the automatic glue dripping device to drip curing glue on the photosensitive target surface of the camera, and the measurement of the curing glue is determined according to the area of the photosensitive target surface of the camera.

8. The alignment system for a polarizer array and a photosensitive target surface of a camera according to any one of claims 1 to 3, characterized in that: The alignment system of the polarizer array and the photosensitive target surface of the camera further includes a light source and a filter switch connected to the controller, wherein the light source is arranged above the built-in track rotating clamp, and the filter switch is arranged between the light source and the built-in track rotating clamp, and the filter switch is equipped with bandpass filters of multiple bands; The controller is further configured to control the filter switch to switch a bandpass filter of a certain wavelength band while controlling the light source to operate.

9. A method for aligning a polarizer array with a photosensitive target surface of a camera, characterized in that: A method for aligning a polarizer array and a photosensitive target surface of a camera according to any one of claims 1 to 8, comprising: Based on the positions of the camera and the polarizer array, the distance between the polarizer array and the photosensitive target surface of the camera is reduced in the vertical direction. As the polarizer array gradually approaches the photosensitive target surface of the camera, the horizontal rotation angle of the polarizer array is adjusted so that the side of the polarizer array after adjustment is parallel to the corresponding side of the real-time display image of the camera; Continue to gradually reduce the distance between the polarizer array and the photosensitive target surface of the camera in the vertical direction until the distance is less than or equal to a first distance threshold, the real-time display image of the camera after adjustment includes the polarizer array, and the clarity corresponding to the polarizer array is greater than the first clarity threshold; Based on the brightness of the real-time display image of the camera, the rotation angle and the horizontal position of the camera are adjusted, and after the adjustment, the pixels in the real-time display image of the camera are aligned with the polarization subunits in the polarizer array.

10. The method for aligning a polarizer array with a photosensitive target surface of a camera according to claim 9, wherein: The adjusting the rotation angle and horizontal position of the camera based on the brightness of the real-time display image of the camera, so that the pixels in the real-time display image of the camera are aligned with the polarization subunits in the polarizer array after the adjustment, comprises: S1. Adjusting the rotation angle of the camera so that the brightness difference of the real-time display image of the camera after adjustment is less than a first brightness threshold; S2. Adjust the horizontal position of the camera so that the brightness of the real-time display image of the camera after adjustment is greater than a second brightness threshold; S3. Based on the gradually enlarged real-time display image of the camera, continue to adjust the horizontal position of the camera until the pixels in the real-time display image of the camera after adjustment are aligned with the polarization subunits in the polarizer array.

11. The method for aligning a polarizer array with a photosensitive target surface of a camera according to claim 10, wherein: The step of continuously adjusting the horizontal position of the camera based on the gradually enlarged real-time display image of the camera until pixels in the adjusted real-time display image of the camera are aligned with polarization subunits in the polarizer array comprises: Based on the gradually enlarged real-time display image of the camera, continue to adjust the horizontal position of the camera, and based on the multiple images at different angles captured by the adjusted camera, respectively determine the brightness corresponding to each of the multiple images and the extinction ratio corresponding to the adjusted camera; According to the brightness corresponding to each of the multiple images and the adjusted extinction ratio corresponding to the camera, it is determined whether to repeat the above steps S1 to S3 to adjust the rotation angle and horizontal position of the camera.

12. The method for aligning a polarizer array with a photosensitive target surface of a camera according to claim 11, wherein: The step of determining whether to repeatedly perform steps S1 to S3 to adjust the rotation angle and horizontal position of the camera according to the brightness corresponding to each of the plurality of images and the adjusted extinction ratio corresponding to the camera includes: determining, based on the brightness corresponding to each of the plurality of images, whether there are a preset number of images each having a brightness greater than a third brightness threshold, and a brightness difference between the preset images being less than a fourth brightness threshold, and determining whether the extinction ratio corresponding to the adjusted camera is greater than or equal to the extinction ratio threshold; If it is determined that the brightness corresponding to each of the preset number of images is greater than the third brightness threshold, the brightness difference between the preset images is less than the fourth brightness threshold, and the extinction ratio is greater than or equal to the extinction ratio threshold, stopping executing S1-S3 above to adjust the rotation angle and horizontal position of the camera; When it is determined that none of the preset number of images have brightness corresponding to each image greater than the third brightness threshold, and the brightness difference between the preset images is less than the fourth brightness threshold, and / or the extinction ratio is less than the extinction ratio threshold, the above steps S1-S3 are repeatedly performed to adjust the rotation angle and horizontal position of the camera until, among the preset number of images captured by the adjusted camera, there are images each having brightness corresponding to the preset number of images greater than the third brightness threshold, and the brightness difference between the preset images is less than the fourth brightness threshold, and the extinction ratio is greater than or equal to the extinction ratio threshold.

13. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein: When the processor executes the program, the method for aligning the polarizer array and the photosensitive target surface of the camera as described in any one of claims 9 to 12 is implemented.

14. A non-transitory computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the method for aligning a polarizer array with a photosensitive target surface of a camera as claimed in any one of claims 9 to 12 is implemented.

15. A computer program product comprising a computer program, characterized in that When the computer program is executed by a processor, the method for aligning a polarizer array with a photosensitive target surface of a camera as claimed in any one of claims 9 to 12 is implemented.

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