Multispectral sensor and electronic device

Abstract

Embodiments of the present application provide a multispectral sensor and an electronic device. The multispectral sensor includes a sensor device array. The sensor device array includes at least three rows of photosensors. The at least three rows of photosensors are divided into a middle sensor group and an edge sensor group. The middle sensor group includes first photosensors. The edge sensor group includes second photosensors. In a row direction of the sensor device array, one row of the first photosensors includes N first photosensors and N-1 first gaps. The first gaps are formed between two adjacent first photosensors. A number of second photosensors in a row adjacent to the one row of the first photosensors is N-1. In a column direction, the second photosensors are arranged corresponding to the first gaps.

Description

[0001] This application is a divisional application. The original application, application number 202111584863.4, was filed on December 22, 2021. The entire contents of the original application are incorporated herein by reference. Technical Field

[0002] This application relates to the field of terminal technology, and in particular to a multispectral sensor and electronic device. Background Technology

[0003] Multispectral imaging technology differs from full-spectrum imaging or white light imaging. It involves separating different spectra and imaging multiple times. By exploiting the varying degrees of absorption and reflection of an object across different spectra, a multispectral image of the same object is acquired. Then, algorithms for detail enhancement and feature extraction can be applied to these multispectral images to identify different details. Multispectral imaging technology is a type of optoelectronic imaging technology and an application of machine vision.

[0004] With the explosive growth of electronic devices such as smartphones and tablets, their functions are becoming increasingly diverse. As imaging technology in these devices continues to advance, the demand for accurate color reproduction when taking photos under various conditions is also rising. Especially under different ambient lighting, color distortion can easily occur, affecting image quality. Electronic devices equipped with multispectral sensors can improve color reproduction accuracy by providing spectral measurements during photo capture. However, multispectral sensors in electronic devices often suffer from low signal-to-noise ratios and low sensitivity, impacting their spectral detection performance. Summary of the Invention

[0005] This application provides a multispectral sensor and electronic device that can improve the low signal-to-noise ratio and sensitivity of multispectral sensors.

[0006] This application provides a multispectral sensor, which includes at least a sensor array. The sensor array includes at least three rows of photoelectric sensors. The at least three rows of photoelectric sensors are divided into a middle sensor group and an edge sensor group. Along the column direction of the sensor array, the middle sensor group is located between two edge sensor groups. The middle sensor group includes first photoelectric sensors. The edge sensor groups include second photoelectric sensors. Along the row direction of the sensor array, a row of first photoelectric sensors includes N first photoelectric sensors and N-1 first gaps. A first gap is formed between two adjacent first photoelectric sensors. The number of second photoelectric sensors in a row adjacent to the aforementioned row of first photoelectric sensors is N-1. Along the column direction, the second photoelectric sensors are arranged corresponding to the first gaps.

[0007] The multispectral sensor of this application embodiment includes a sensor array comprising a central sensor group and an edge sensor group. The edge sensor group is disposed on one side of the central sensor group. The first and second photoelectric sensors in the sensor array are staggered. The first and second photoelectric sensors are located in different regions. The number of second photoelectric sensors in a row is less than the number of first photoelectric sensors in each row of the central sensor group. Therefore, a separate, complete second photoelectric sensor is not separately disposed in the corner areas of the sensor array. This allows the sensor array to better preserve the field of view and the number of light-receiving areas, eliminating the need for independently disposed photoelectric sensors in corner areas with poor detection performance. Therefore, the multispectral sensor of this application embodiment helps to improve the situation where the signal-to-noise ratio and sensitivity of the photoelectric sensor decrease due to the low illuminance received by the photoelectric sensor separately disposed in the corner areas. This helps to ensure that the multispectral sensor has good detection sensitivity and high light energy utilization, achieving a better overall spectral detection effect.

[0008] In one possible implementation, the first photoelectric sensor has a first center. The intermediate sensor group includes two or more rows of first photoelectric sensors. The first centers of each column of first photoelectric sensors are located on the same straight line, so that the individual first photoelectric sensors are arranged neatly in the column direction.

[0009] In one possible implementation, the shape and size of the first photoelectric sensor are the same as those of the second photoelectric sensor, so that the photosensitive areas of the first and second photoelectric sensors are the same, and the angle ranges received by the first and second photoelectric sensors are the same, which is beneficial to improving the accuracy of the sensor array in regional detection of the target scene.

[0010] In one possible implementation, the second photoelectric sensor has a second center. The line connecting the second center to the two adjacent first centers forms an isosceles triangle.

[0011] In one possible implementation, the second photoelectric sensor has a second center. The line connecting the second center and the two adjacent first centers forms an equilateral triangle. Therefore, in the edge sensor group, a second photoelectric sensor is not separately installed on a portion of the area corresponding to the outermost first photoelectric sensor. As a result, the sensor array does not receive light in this area, which helps to reduce the possibility of a decrease in signal-to-noise ratio and sensitivity due to low illuminance received by the second photoelectric sensor separately installed in this area, thus affecting the spectral detection performance.

[0012] In one possible implementation, the number of second photoelectric sensors in a row is three or more. Among the two outermost second photoelectric sensors along the row direction, at least one has a larger photosensitive area than the first photoelectric sensor. Therefore, at least one of the two outermost second photoelectric sensors can compensate for the lower illuminance in the corner areas by increasing its photosensitive area. This allows the sensor array to retain a larger field of view and a greater number of light-receiving areas without requiring a separate second photoelectric sensor in the corner areas. This is beneficial for ensuring that the multispectral sensor has good detection sensitivity and high light energy utilization, achieving better overall spectral detection performance.

[0013] In one possible implementation, along the row direction, at least one of the two outermost second photoelectric sensors has a larger photosensitive area than the second photoelectric sensor located in the middle region.

[0014] In one possible implementation, along the row direction, the shape and size of the second photoelectric sensor located in the middle region are the same as those of the first photoelectric sensor.

[0015] In one possible implementation, a second gap is provided between two adjacent second photoelectric sensors along the row direction, which helps to reduce the possibility of light crosstalk between two adjacent second photoelectric sensors and ensures that the sensor array has good detection accuracy.

[0016] In one possible implementation, the first gap and the second gap are not on the same straight line along the column direction.

[0017] In one possible implementation, a third gap is provided between the first photoelectric sensor and the second photoelectric sensor along the column direction, which helps to reduce the possibility of light crosstalk between adjacent first and second photoelectric sensors and ensures that the sensor array has good detection accuracy.

[0018] In one possible implementation, the intermediate sensor group includes two or more rows of first photoelectric sensors. Along the column direction, there is a fourth gap between two adjacent first photoelectric sensors, which helps to reduce the possibility of light crosstalk between adjacent first and second photoelectric sensors and ensures that the sensor array has good detection accuracy.

[0019] In one possible implementation, the first photoelectric sensor has a first center. Along the row direction, the first centers of the first photoelectric sensors in each row are located on the same straight line, so that the first photoelectric sensors are arranged in a relatively regular and orderly manner in the row direction.

[0020] In one possible implementation, the second photoelectric sensor has a second center. Along the row direction, the second centers of the second photoelectric sensors in each row are located on the same straight line, thus the arrangement of the individual second photoelectric sensors is relatively regular and orderly.

[0021] In one possible implementation, each first photoelectric sensor in the intermediate sensor group is rectangular.

[0022] In one possible implementation, the multispectral sensor includes a light channel. The light channel includes a light-inlet portion and an optical lens. The light-inlet portion is configured to allow external light to enter the light channel. The optical lens is configured to change the transmission path of the light to reach a sensor array. Along the axial direction of the light-inlet portion, the orthographic projection of the sensor array lies within the orthographic projection of the optical lens.

[0023] In one possible implementation, the multispectral sensor includes two or more rows of optical channels. Each optical channel has a channel center. In each row of optical channels, there is a fifth gap between two adjacent optical channels. Specifically, in adjacent rows of optical channels, the optical channels in one row correspond to the fifth gap in the other row, and the lines connecting the centers of two adjacent optical channels in one row to the corresponding optical channel in the other row form a triangle. Therefore, in the column direction, the length of the perpendicular line between the line connecting the centers of two adjacent optical channels in one row and the center of one optical channel in the other row is less than the length of the line connecting any two of the three channel centers. Thus, the spacing between adjacent rows of optical channels is small along the column direction, thereby reducing the overall area occupied by the sensor array while ensuring high detection performance of the multispectral sensor, improving space utilization, and facilitating the miniaturization design of the multispectral sensor, enabling its integration into a compact electronic device.

[0024] In one possible implementation, the lines connecting the centers of two adjacent light channels in one row to the center of a corresponding light channel in another row form an equilateral triangle, thus ensuring that the distance between any two of the three channel centers is equal. Therefore, equal spacing between the three light channels helps reduce the likelihood of crosstalk between adjacent light channels due to small spacing, thereby guaranteeing the detection accuracy and performance of the multispectral sensor.

[0025] In one possible implementation, along the row direction, the center of each light channel in each row is located on the same straight line, so that the light channels are arranged in a regular and orderly manner, which helps to ensure the overall size of the multispectral sensor is regular.

[0026] In one possible implementation, the projected area of ​​each optical lens is the same. The shape and size of each light-entry section are identical, which helps to ensure the consistency of the field of view of each light channel and to guarantee the detection accuracy of the multispectral sensor.

[0027] In one possible implementation, among two or more light channels, at least one light channel is a color channel for visible light, thereby enabling the reception of detected visible light.

[0028] A second aspect of this application provides an electronic device that includes at least a multispectral sensor. The multispectral sensor includes at least a sensor array. The sensor array includes at least three rows of photoelectric sensors. The at least three rows of photoelectric sensors are divided into a middle sensor group and an edge sensor group. Along the column direction of the sensor array, the middle sensor group is located between two edge sensor groups. The middle sensor group includes first photoelectric sensors. The edge sensor groups include second photoelectric sensors. Along the row direction of the sensor array, a row of first photoelectric sensors includes N first photoelectric sensors and N-1 first gaps. A first gap is formed between two adjacent first photoelectric sensors. The number of second photoelectric sensors in a row adjacent to the aforementioned row of first photoelectric sensors is N-1. Along the column direction, the second photoelectric sensors are arranged corresponding to the first gaps. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of an electronic device;

[0030] Figure 2 for Figure 1 A partially exploded view of the electronic device in the embodiment shown.

[0031] Figure 3 for Figure 1 A schematic diagram of the rear structure of the electronic device in the embodiment shown;

[0032] Figure 4 for Figure 1 A partial cross-sectional view of the multispectral sensor in the electronic device of the illustrated embodiment;

[0033] Figure 5 for Figure 4 The diagram illustrates the state of the multispectral sensor receiving light in the embodiment shown.

[0034] Figure 6 This is a schematic diagram showing the state of light receiving by one light channel in a multispectral sensor.

[0035] Figure 7 This is a top view schematic diagram of a sensor array in a related technology;

[0036] Figure 8This is a top view of a sensor array provided in an embodiment of this application.

[0037] Figure 9 A schematic diagram of the spectral responsivity of different light channels provided in an embodiment of this application;

[0038] Figure 10 This is a top view of a sensor array provided in another embodiment of this application;

[0039] Figure 11 This is a top view of a sensor array provided in another embodiment of the present application.

[0040] Figure 12 This is a top view of a multispectral sensor including multiple light channels, provided as an embodiment of this application.

[0041] Figure label:

[0042] 10. Electronic devices;

[0043] 20. Display components;

[0044] 30. Shell;

[0045] 40. Motherboard;

[0046] 50. Electronic components;

[0047] 60. Camera module;

[0048] 70. Spectral sensor; 701. First gap; 701a. Centerline; 702. Second gap; 703. Third gap; 704. Fourth gap; 705. Fifth gap;

[0049] 71. Light channel; 71a. Optical axis; 71b. Channel center;

[0050] 72. Light-receiving section;

[0051] 73. Substrate;

[0052] 74. Optical lenses;

[0053] 75. Filter section;

[0054] 76. Sensor array; 76a. Corner area; 76b. Middle sensor group; 76c. Edge sensor group;

[0055] 760. Photoelectric sensor;

[0056] 761, First photoelectric sensor; 761a, First center;

[0057] 762. Second photoelectric sensor; 762a. Second center; 7621. Rectangular region; 7622. Sector-shaped region;

[0058] 77. Outer shell;

[0059] X, row direction;

[0060] Y, column direction;

[0061] Z, Axial direction. Detailed Implementation

[0062] The electronic devices in this application embodiment can be referred to as user equipment (UE) or terminals, etc. For example, electronic devices can be portable Android devices (PADs), personal digital assistants (PDAs), handheld devices with wireless communication capabilities, computing devices, in-vehicle devices, wearable devices, virtual reality (VR) terminal devices, augmented reality (AR) terminal devices, wireless terminals in industrial control, wireless terminals in self-driving, wireless terminals in remote medical care, wireless terminals in smart grids, wireless terminals in transportation safety, wireless terminals in smart cities, wireless terminals in smart homes, and other mobile or fixed terminals. This application embodiment does not specifically limit the form of the terminal device.

[0063] In the embodiments of this application, Figure 1 The structure of an electronic device 10 according to one embodiment is shown schematically. See also Figure 1 As shown, the example described is a handheld device with wireless communication capabilities, specifically electronic device 10. A handheld device with wireless communication capabilities could be, for example, a mobile phone.

[0064] Figure 2 The partial exploded structure of the electronic device 10 is schematically shown. See also Figure 2As shown, the electronic device 10 of this application embodiment includes a display component 20, a housing 30, a motherboard 40, and an electronic device 50. The display component 20 has a display area for displaying image information. The display component 20 is mounted on the housing 30, and the display area of ​​the display component 20 is exposed to facilitate the presentation of image information to the user. The motherboard 40 is connected to the housing 30 and is located inside the display component 20, so that the motherboard 40 is not easily observed by the user from the outside of the electronic device 10. The electronic device 50 is disposed on the motherboard 40. The motherboard 40 may be a printed circuit board (PCB). For example, the electronic device 50 is soldered to the motherboard 40 by a soldering process. The electronic device 50 includes, but is not limited to, a central processing unit (CPU), an intelligent algorithm chip, or a power management IC (PMIC).

[0065] Figure 3 The rear structure of the electronic device 10 is shown schematically. See also Figure 2 and Figure 3 As shown, the electronic device 10 also includes a camera module 60 and a multispectral sensor 70. Both the camera module 60 and the multispectral sensor 70 are electrically connected to the motherboard 40. In the electronic device 10, the multispectral sensor 70 and the camera module 60 are offset from each other and mounted on the housing 30. The camera module 60 is configured to capture images of the target scene. The camera module 60 may include multiple lenses, such as, but not limited to, wide-angle lenses or periscope telephoto lenses. When using the electronic device 10 to capture images of a target, the multispectral sensor 70 can collect ambient light and process and analyze it to obtain a multispectral image or a reconstructed multispectral image. The collected multispectral image or the reconstructed multispectral image can be used for qualitative analysis of the composition of the photographed object. For example, the multispectral sensor 70 can obtain a more accurate ambient color temperature, and based on this ambient color temperature, the color of the photographed object can be restored, thereby reducing the possibility of color distortion affecting image quality under different environments and mixed lighting sources. Alternatively, the multispectral sensor 70 can be used for material composition identification. Alternatively, the multispectral sensor 70 can detect the frequency of the light source and adjust the exposure time based on the frequency information, thereby more accurately eliminating flicker in the image. Therefore, multispectral image data acquired by the multispectral sensor 70 can be applied to a variety of different application scenarios.

[0066] Figure 4 A partial cross-sectional view of the multispectral sensor 70 is schematically shown. Figure 5 The diagram schematically illustrates the state of light reception by the multispectral sensor 70. See also... Figure 4 and Figure 5As shown, the multispectral sensor 70 includes a light channel 71 with an optical axis 71a. It should be noted that the angle between the light rays incident on the light channel 71 along the optical axis 71a and the optical axis 71a is 0°. The light channel 71 includes a light-entry section 72, an optical lens 74, a filter section 75, and a sensor array 76. The shape and size of the light-entry section 72 are configured to define the field of view at the focal plane of the optical lens 74. The sensor array 76 includes multiple photoelectric sensors 760. Each photoelectric sensor 760 can receive light from a portion of the target scene. External light rays can enter the multispectral sensor 70 through the light-entry section 72, then change their transmission path after passing through the optical lens 74 before illuminating the filter section 75. Light rays at different angles to the optical axis 71a then pass through the filter section 75 and reach different photoelectric sensors 760 in the sensor array 76. It should be noted that external light can be light directly from light sources in the external environment (e.g., the sun or lighting equipment) or light reflected or scattered by objects in the external environment (e.g., light reflected from trees, walls, roads, the subject being photographed).

[0067] In related technologies, Figure 6 The schematic diagram shows the state of light reception in one of the light channels 71 of the multispectral sensor 70. Figure 7 The schematic top view of the sensor array 76 is shown. See also Figure 6 and Figure 7As shown, the multiple photoelectric sensors 760 in the sensor array 76 are arranged in a row-column rectangular alignment, meaning that the number of photoelectric sensors 760 in each row is the same, thus the sensor array 76 has four corner regions 76a. Each photoelectric sensor 760 has the same size. Light from different angles passes through the optical lens 74 and the filter 75 before reaching the photoelectric sensors 760 at different positions. The illuminance received by each photoelectric sensor 760 is different. It should be noted that illuminance refers to light intensity, that is, the luminous flux received per unit area. Among the multiple photoelectric sensors 760, the photoelectric sensor 760 closer to the optical axis 71a receives higher illuminance, while the photoelectric sensor 760 farther from the optical axis 71a receives lower illuminance. Therefore, the photoelectric sensor 760 individually located in the corner region 76a of the sensor array 76 receives lower illuminance, which can easily lead to a decrease in signal-to-noise ratio and sensitivity, thereby affecting the overall spectral detection performance of the multispectral sensor 70. The larger the field of view of the multispectral sensor 70, the lower the illumination received by the photoelectric sensor 760 located in the corner region 76a. Field of view refers to the maximum observable range, usually expressed in angles. The larger the field of view of the multispectral sensor 70, the larger its observation range. In scenes with a large field of view, light rays incident on the multispectral sensor 70 are at a certain angle. Simultaneously, less light enters the light-receiving part 72 from the direction farther from the optical axis 71a (closer to the edge of the maximum field of view). Therefore, the illumination of light rays farther from the optical axis 71a in the corner region 76a is lower. Thus, the larger the field of view, the lower the illumination received by the photoelectric sensor 760 in the corner region 76a, which is far from the optical axis 71a, and the worse its spectral detection performance.

[0068] The multispectral sensor 70 provided in this application embodiment, with sensor array 76, can improve the situation where the signal-to-noise ratio and sensitivity of the photoelectric sensor decrease due to the low illuminance received by the photoelectric sensor in the corner region 76a, thereby helping to ensure that the multispectral sensor 70 has good detection sensitivity and achieves better overall spectral detection.

[0069] The implementation of the multispectral sensor 70 provided in the embodiments of this application will be described below.

[0070] Figure 8 A top view schematically shows the structure of a sensor array 76 according to one embodiment. See also Figure 5 and Figure 8As shown, the multispectral sensor 70 of this application embodiment includes one or more light channels 71. Each light channel 71 includes a light-entry section 72, an optical lens 74, a filter section 75, and a sensor array 76. The light-entry section 72, optical lens 74, filter section 75, and sensor array 76 are arranged along the axial direction Z of the light-entry section 72. The light channel 71 has an optical axis 71a. The optical axis 71a of the light channel 71 may coincide with the axis of the light-entry section 72. The light-entry section 72 is configured to allow external light to enter the light channel 71. Exemplarily, each light channel 71 may include one light-entry section 72. The optical lens 74 is configured to change the transmission path of light to reach the sensor array 76. Exemplarily, the optical lens 74 is configured to change the transmission path of light to be incident on the filter section 75. The filter section 75 is configured to allow light of a specific wavelength range to pass through and reach the sensor array 76. After receiving light of a specific wavelength range, the sensor array 76 detects and collects the corresponding spectral information.

[0071] In the multispectral sensor 70 of this application embodiment, along the axial direction Z of the light-receiving portion 72, the orthogonal projection of the sensor array 76 is located within the orthogonal projection of the optical lens 74. Figure 8 The circular dashed line around the sensor array 76 is used to indicate the outer contour of the orthographic projection of the optical lens 74. Exemplarily, the bottom surface of the optical lens 74 can be a flat surface, while the top surface can be curved. The outer contour of the orthographic projection of the optical lens 74 can be circular. The sensor array 76 includes at least three rows of photoelectric sensors. Exemplarily, the at least three rows of photoelectric sensors can be arranged in an array. The at least three rows of photoelectric sensors are divided into a middle sensor group 76b and an edge sensor group 76c. Along the column direction Y of the sensor array 76, the middle sensor group 76b is located between the two edge sensor groups 76c. The middle sensor group 76b includes a first photoelectric sensor 761. The edge sensor group 76c includes a second photoelectric sensor 762.

[0072] Along the row direction X of the sensor array 76, a row of first photoelectric sensors 761 includes N first photoelectric sensors 761 and N-1 first gaps 701, where N is an integer greater than or equal to two. For the intermediate sensor group 76b, a first gap 701 is formed between two adjacent first photoelectric sensors 761 in each row, which helps to reduce the possibility of light crosstalk between adjacent first photoelectric sensors 761. It should be noted that the row direction X and the column direction Y can be perpendicular to each other. The number of second photoelectric sensors 762 adjacent to the above-mentioned row of first photoelectric sensors 761 is N-1, so the number of second photoelectric sensors 762 in a row is equal to the number of first gaps 701 in a row. The second photoelectric sensors 762 are set corresponding to the first gaps 701.

[0073] It should be noted that the setting of the second photoelectric sensor 762 corresponding to the first gap 701 can mean that the second photoelectric sensor 762 and the first gap 701 are distributed along the column direction Y. Along the row direction X, a second gap 702 is formed between two adjacent second photoelectric sensors 762. The setting of the second photoelectric sensor 762 corresponding to the first gap 701 can also mean that along the column direction Y, the first gap 701 and the second gap 702 are not on the same straight line, so that the first gap 701 can be opposite to one side of the second photoelectric sensor 762. For example, the first gap 701 can be opposite to the middle part of one side of the second photoelectric sensor 762.

[0074] In this embodiment of the multispectral sensor 70, external light can enter the multispectral sensor 70 through the light-inlet section 72, then pass through the optical lens 74 and illuminate the filter section 75. Light rays at different angles to the optical axis 71a then reach the first photoelectric sensor 761 and the second photoelectric sensor 762 at different positions in the sensor array 76 after passing through the filter section 75. External light cannot enter the multispectral sensor 70 from areas outside the light-inlet section 72, reducing the possibility of stray light being received by the first photoelectric sensor 761 and the second photoelectric sensor 762 and affecting detection accuracy. In the sensor array 76, the first photoelectric sensor 761 and the second photoelectric sensor 762 at different positions are configured to receive light from different areas of the target scene. That is, each first photoelectric sensor 761 and the second photoelectric sensor 762 is configured to receive light within a predetermined angle range, rather than receiving light from all angles. This enables regional detection of the target scene, allowing for accurate color perception and spectral analysis, especially in scenes where different areas of the target scene have significantly different color temperatures. It should be noted that the target scene can be, but is not limited to, people, objects, scenery, or light sources that can emit light. For example, in the sensor array 76, the first photoelectric sensor 761 and the second photoelectric sensor 762, which are farther away from the optical axis 71a, are used to receive light from the target scene closer to the edge area, while the first photoelectric sensor 761, which is closer to the optical axis 71a, is used to receive light from the target scene farther away from the edge area.

[0075] For example, the light-gathering portion 72 can be a circular hole. For instance, a hole can be drilled in a substrate 73 formed from an opaque material to form the light-gathering portion 72. Alternatively, an opaque region and a transparent region can be provided on the substrate 73. The transparent region forms the light-gathering portion 72. A transparent region refers to an area that allows light of most or all wavelengths to pass through.

[0076] The central axis of the optical lens 74 coincides with the axis of the light-entry section 72. The optical lens 74 has a collimating function, causing the light rays exiting the optical lens 74 to be closer to the optical axis 71a of the light channel 71 relative to the light rays incident on the optical lens 74. Exemplarily, the optical lens 74 can be a wafer-level optical element (WLO). A wafer-level optical element refers to a micro / nano optical element fabricated using semiconductor processes to create micro / nano structures on a substrate wafer. See, for example... Figure 4 As shown, the optical lens 74 may include two layers of wafer-level optical elements. Alternatively, the optical lens 74 may also include three or more layers of wafer-level optical elements. There is no specific limitation on the number of wafer-level optical elements.

[0077] The filter 75 is configured to allow light of a specific wavelength range to pass through and reach the sensor array 76. See, for example... Figure 9 As shown, when the light channel 71 serves as different sensing channels, the filter 75 allows light of a corresponding wavelength range in the spectrum to pass through. Figure 9 In this design, channels one through eight, the full-spectrum (Clear) channel, the near-infrared (NIR) channel, and the flicker-proof channel are all different light channels 71, and each light channel 71 corresponds to light within a specific wavelength range. The wavelength range detected by each light channel 71 is not limited to... Figure 9 The wavelength range shown can also be flexibly adjusted according to actual product requirements. Figure 9 The diagram schematically shows a predetermined number of light channels 71, but it is not intended to limit the number of light channels 71 in the multispectral sensor 70. Any number of light channels 71 can be set according to actual product requirements.

[0078] Understandably, the light channel 71 can serve as a visible light sensing channel; for example, the first to eighth channels are visible light sensing channels. The light channel 71 can also serve as an invisible light sensing channel; for example, invisible light can include, but is not limited to, ultraviolet light, near-infrared (NIR), short-wave infrared (SWIR), infrared (IR), or long-wave infrared (LWIR).

[0079] For example, the filter section 75 may be a filter.

[0080] In this embodiment, the edge sensor group 76c is located to one side of the middle sensor group 76b in the column direction Y. However, the specific arrangement of the middle sensor group 76b and the edge sensor group 76c is not limited. For example, in some examples, the edge sensor group 76c may also be located to one side of the middle sensor group 76b in the row direction X.

[0081] In some possible implementations, the multispectral sensor 70 includes an opaque housing 77. An optical lens 74, a filter, and a sensor array 76 are disposed within the housing 77.

[0082] The multispectral sensor 70 of this embodiment includes a sensor array 76 comprising a central sensor group 76b and an edge sensor group 76c. The edge sensor group 76c is disposed on one side of the central sensor group 76b. The first photoelectric sensor 761 and the second photoelectric sensor 762 in the sensor array 76 are staggered. The first photoelectric sensor 761 and the second photoelectric sensor 762 are located in different regions. The number of second photoelectric sensors 762 in a row is less than the number of first photoelectric sensors 761 in a row. Therefore, a separate, complete second photoelectric sensor 762 is not separately disposed in the corner region 76a of the sensor array 76. This allows the sensor array 76 to better preserve the field of view and the number of light-receiving areas, eliminating the need for a separately disposed photoelectric sensor in the corner region 76a, which has poor detection performance. Therefore, the multispectral sensor 70 of this application embodiment is beneficial to improving the situation where the signal-to-noise ratio and sensitivity of the photoelectric sensor decrease due to the low light illuminance received by the photoelectric sensor separately set in the corner area 76a. This helps to ensure that the multispectral sensor 70 has good detection sensitivity and high light energy utilization, and achieves better overall spectral detection.

[0083] In some implementations, the intermediate sensor group 76b includes one or two or more rows of first photoelectric sensors 761. Each of the two edge sensor groups 76c includes one or two or more rows of second photoelectric sensors 762. Exemplarily, the number of first photoelectric sensors 761 in each row of the intermediate sensor group 76b is equal. The number of second photoelectric sensors 762 in each row of the edge sensor group 76c is less than the number of first photoelectric sensors 761 in each row of the intermediate sensor group 76b.

[0084] See also some of the possible implementation methods. Figure 8 As shown, the sensor array 76 may include four rows of photoelectric sensors. The middle sensor group 76b includes two rows of first photoelectric sensors 761. For example, the number of first photoelectric sensors 761 in each row may be, but is not limited to, four, i.e., N is four. Each of the two edge sensor groups 76c includes one row of second photoelectric sensors 762. Exemplarily, the two edge sensor groups 76c include the same number of second photoelectric sensors 762. The number of second photoelectric sensors 762 in one row is one less than the number of first photoelectric sensors 761 in one row. For example, the number of second photoelectric sensors 762 in one row may be, but is not limited to, three.

[0085] In some possible implementations, the first photoelectric sensor 761 and the second photoelectric sensor 762 are configured to convert optical signals into electrical signals (e.g., digital or analog electrical signals). The first photoelectric sensor 761 and the second photoelectric sensor 762 can be photodiodes. A photodiode can be a semiconductor device consisting of a PN junction, exhibiting unidirectional conductivity.

[0086] See also some of the possible implementation methods. Figure 8 As shown, each of the first photoelectric sensors 761 in the intermediate sensor group 76b has a first center 761a. The first center 761a refers to the illumination center on the photosensitive plane of the first photoelectric sensor 761 after light passes through the optical lens 74 and the filter 75. Figure 8 The first center 761a shown in the diagram does not represent an actual physical structure. The intermediate sensor group 76b includes two or more rows of first photoelectric sensors 761. The first centers 761a of each column of first photoelectric sensors 761 are located on the same straight line, so that the individual first photoelectric sensors 761 are arranged regularly in the column direction Y. In some examples, the shape of the first photoelectric sensor 761 can be rectangular, such as a rectangle or a square. The shape of the first photoelectric sensor 761 can also be circular, elliptical, or a regular polygon with more than 4 sides. When the first photoelectric sensor 761 is a regular shape, the first center 761a can be the geometric center of the first photoelectric sensor 761.

[0087] In some feasible implementations, the shape and size of the first photoelectric sensor 761 are identical to those of the second photoelectric sensor 762, thereby ensuring that the photosensitive areas of the first photoelectric sensor 761 and the second photoelectric sensor 762 are the same. This also ensures that the angle ranges received by the first photoelectric sensor 761 and the second photoelectric sensor 762 are the same, which is beneficial for improving the accuracy of the sensor array 76 in performing localized detection of the target scene. The photosensitive area refers to the surface facing the optical lens 74 that can be used to receive light. In some examples, the shapes of the first photoelectric sensor 761 and the second photoelectric sensor 762 can be rectangular, such as a rectangle or a square. The shapes of the first photoelectric sensor 761 and the second photoelectric sensor 762 can also be circular, elliptical, or regular polygons with more than 4 sides. The specific shape and size of the first photoelectric sensor 761 and the second photoelectric sensor 762 are not limited here.

[0088] See in some examples Figure 8 As shown, each of the second photoelectric sensors 762 in the edge sensor group 76c has a second center 762a. The second center 762a refers to the illumination center on the photosensitive plane of the second photoelectric sensor 762 after light passes through the optical lens 74 and the filter 75. Figure 8 The second center 762a shown in the diagram does not represent an actual physical structure. For example, when the second photoelectric sensor 762 has a regular shape, the second center 762a can be the geometric center of the second photoelectric sensor 762.

[0089] In some examples, in the sensor array 76, the line connecting the second center 762a of a second photoelectric sensor 762 to the first center 761a of two adjacent first photoelectric sensors 761 forms an isosceles triangle. The distance between the second center 762a of one second photoelectric sensor 762 and the first center 761a of one first photoelectric sensor 761 is P, and the distance between the second center 762a of one second photoelectric sensor 762 and the first center 761a of the other first photoelectric sensor 761 is also P.

[0090] In some examples, in the sensor array 76, the line connecting the second center 762a of a second photoelectric sensor 762 to the first center 761a of two adjacent first photoelectric sensors 761 forms an equilateral triangle. In the edge sensor group 76c, the vertical distance between the second centers 762a of two adjacent second photoelectric sensors 762 along the row direction X is P. In the middle sensor group 76b, the vertical distance between the first centers 761a of two adjacent first photoelectric sensors 761 in each row along the row direction X is P. The vertical distance between the second center 762a of the second photoelectric sensor 762 and the first center 761a of the first photoelectric sensor 761 along the row direction X is P / 2. Therefore, in the edge sensor group 76c, a second photoelectric sensor 762 is not individually provided in a certain area corresponding to the outermost first photoelectric sensor 761, so the sensor array 76 does not receive light in this area. This helps to reduce the possibility of a decrease in signal-to-noise ratio and sensitivity due to low illumination received by the second photoelectric sensor 762 individually provided in this area, thus affecting the spectral detection performance. In addition, the number of second photoelectric sensors 762 is one less than the number of first photoelectric sensors 761 in each adjacent row. At the same time, along the column direction Y, a portion of the outermost second photoelectric sensor 762 is correspondingly arranged with a portion of the outermost first photoelectric sensor 761. This allows the sensor array 76 to retain a larger field of view and a larger area for receiving light, which is beneficial to ensure that the multispectral sensor 70 has good detection sensitivity and high light energy utilization, and achieves better overall spectral detection.

[0091] In some examples, the first photoelectric sensor 761 and the second photoelectric sensor 762 are of regular shapes, such as regular polygons, circles, or ellipses. In the edge sensor group 76c, the second photoelectric sensor 762 is not individually disposed on a portion of the area corresponding to the outermost first photoelectric sensor 761. Furthermore, the number of second photoelectric sensors 762 is one less than the number of first photoelectric sensors 761 in each adjacent row, and along the column direction Y, a portion of the outermost second photoelectric sensor 762 is disposed corresponding to a portion of the outermost first photoelectric sensor 761.

[0092] In some feasible ways, Figure 10 A top view schematically shows the structure of a sensor array 76 according to one embodiment. See also Figure 10 As shown, along the row direction X, there is a second gap 702 between two adjacent second photoelectric sensors 762, which helps to reduce the possibility of light crosstalk between adjacent second photoelectric sensors 762 and ensures that the sensor array 76 has good detection accuracy. The second photoelectric sensors 762 are correspondingly arranged with the first gap 701, such that along the column direction Y, the first gap 701 and the second gap 702 are not on the same straight line. Exemplarily, the second center 762a of the second photoelectric sensor 762 is located on the center line 701a of the first gap 701. The center line 701a of the first gap 701 extends along the column direction Y. The center line 701a of the first gap 701 refers to the axis of symmetry of the first gap 701 itself. Exemplarily, the shape of the first gap 701 is the same as the shape of the second gap 702. For example, when the first photoelectric sensor 761 and the second photoelectric sensor 762 are both squares of the same size, the first gap 701 and the second gap 702 are both elongated, and the widths of the first gap 701 and the second gap 702 are equal along the row direction X.

[0093] In some feasible implementations, a third gap 703 is provided between the first photoelectric sensor 761 and the second photoelectric sensor 762 along the column direction Y. This helps to reduce the possibility of light crosstalk between adjacent first photoelectric sensors 761 and second photoelectric sensors 762, ensuring that the sensor array 76 has good detection accuracy. Exemplarily, the shape of the first gap 701 is the same as the shape of the third gap 703. For example, when both the first photoelectric sensor 761 and the second photoelectric sensor 762 are squares of the same size, both the first gap 701 and the third gap 703 are elongated, and their widths are equal.

[0094] In some implementations, the intermediate sensor group 76b includes two or more rows of first photoelectric sensors 761. Along the column direction Y, a fourth gap 704 exists between adjacent first photoelectric sensors 761, thereby reducing the possibility of light crosstalk between adjacent first photoelectric sensors 761 and second photoelectric sensors 762, ensuring good detection accuracy of the sensor array 76. Exemplarily, the shape of the first gap 701 is the same as the shape of the fourth gap 704. For example, when the first photoelectric sensor 761 is square, both the first gap 701 and the fourth gap 704 are elongated, and their widths are equal.

[0095] In some feasible implementations, the number of first photoelectric sensors 761 arranged in each row of the intermediate sensor group 76b is equal. Along the row direction X, the first center 761a of each row of first photoelectric sensors 761 is located on the same straight line, so that the first photoelectric sensors 761 are arranged in a relatively regular and orderly manner in the row direction X.

[0096] In some examples, the first center 761a of each column of first photoelectric sensors 761 is located on the same straight line, so that the first photoelectric sensors 761 are arranged in a relatively regular and orderly manner in the column direction Y, so that the first photoelectric sensors 761 in the intermediate sensor group 76b are arranged in a row and column manner. Further, the first photoelectric sensors 761 are evenly spaced in both the row direction X and the column direction Y. Along the row direction X, the vertical distance between the first centers 761a of two adjacent first photoelectric sensors 761 in each row is P. Along the column direction Y, the vertical distance between the first centers 761a of two adjacent first photoelectric sensors 761 in each column is P. For example, the shape of the first photoelectric sensor 761 may be, but is not limited to, a square or a circle, so that the shape and width of the first gap 701 are the same as the shape and width of the fourth gap 704.

[0097] In some feasible implementations, within the edge sensor group 76c, the second centers 762a of each second photoelectric sensor 762 are located on the same straight line along the row direction X, resulting in a relatively regular and orderly arrangement of the second photoelectric sensors 762. Exemplarily, the vertical distance between the second centers 762a of two adjacent second photoelectric sensors 762 along the row direction X is P. The shape of the second photoelectric sensor 762 may be, but is not limited to, a square or a circle.

[0098] In some feasible ways, Figure 11 A top view schematically shows the structure of a sensor array 76 according to one embodiment. See also Figure 11As shown, the number of second photoelectric sensors 762 in a row can be three, i.e., N is four. Understandably, the number of second photoelectric sensors 762 in a row can also be four or more, i.e., N is an integer greater than or equal to five. Specifically, along the row direction X, at least one of the two outermost second photoelectric sensors 762 in a row has a larger photosensitive area than the first photoelectric sensor 761. At least one of the two outermost second photoelectric sensors 762 can receive light over a wider angular range by increasing its photosensitive area. Therefore, at least one of the two outermost second photoelectric sensors 762 can compensate for the low illuminance of the corner region 76a by increasing its photosensitive area. Thus, without needing a separate second photoelectric sensor 762 for the corner region 76a, the sensor array 76 can retain a larger field of view and a greater number of light-receiving areas, which is beneficial for ensuring that the multispectral sensor 70 has good detection sensitivity and high light energy utilization, achieving a better overall spectral detection effect. At the same time, since the photosensitive area of ​​at least one of the two outermost second photoelectric sensors 762 is increased, the angle range of received light can be further increased, thereby increasing the detection range.

[0099] For example, in the edge sensor group 76c, along the row direction X, the photosensitive areas of the two outermost second photoelectric sensors 762 are both larger than the photosensitive area of ​​the first photoelectric sensor 761. For example, the photosensitive areas of the two outermost second photoelectric sensors 762 can be equal.

[0100] In some examples, the first photoelectric sensor 761 is square in shape. The outermost second photoelectric sensor 762 includes a rectangular region 7621 and a fan-shaped region 7622. The fan-shaped region 7622 of the second photoelectric sensor 762 is located outside the rectangular region 7621. The arc-shaped edge of the fan-shaped region 7622 of the second photoelectric sensor 762 can serve as the boundary at the corner of the sensor array 76. Exemplarily, the rectangular region 7621 of the second photoelectric sensor 762 is rectangular. The photosensitive area of ​​the rectangular region 7621 of the second photoelectric sensor 762 can be smaller than the photosensitive area of ​​the first photoelectric sensor 761.

[0101] In some examples, in the edge sensor group 76c, the area between the two outermost second photoelectric sensors 762 is the middle region. In the edge sensor group 76c, along the row direction X, at least one of the two outermost second photoelectric sensors 762 has a larger photosensitive area than the second photoelectric sensor 762 located in the middle region. It should be noted that the second photoelectric sensors 762 in the middle region refer to all the remaining second photoelectric sensors 762 except for the two outermost second photoelectric sensors 762. Exemplarily, the photosensitive area of ​​the second photoelectric sensor 762 in the middle region can be equal to the photosensitive area of ​​the first photoelectric sensor 761. Exemplarily, the shape and size of the second photoelectric sensor 762 located in the middle region are the same as the shape and size of the first photoelectric sensor 761, respectively. For example, both the first photoelectric sensor 761 and the second photoelectric sensor 762 are square or circular.

[0102] In some feasible ways, Figure 12 The diagram schematically shows a top view of a multispectral sensor 70 including multiple light channels 71 according to one embodiment. See also... Figure 12 As shown, the multispectral sensor 70 includes two or more rows of light channels 71. In this embodiment, the two or more rows of light channels 71 can simultaneously acquire multiple light signals of different wavelength ranges, and then synthesize a multispectral image. This enables real-time acquisition of different light channels 71 in the multispectral image information, which is beneficial for improving the accuracy of the multispectral image and the efficiency of signal acquisition. Exemplarily, each light channel 71 may include a light-inlet section 72, a filter section 75, and a sensor array 76.

[0103] In some possible implementations, at least one of the two or more light channels 71 is a visible light color channel. The inclusion of visible light color channels in the two or more light channels 71 allows for the reception and detection of visible light. In some examples, all two or more light channels 71 may be visible light color channels. Alternatively, the two or more light channels 71 may include both visible light color channels and invisible light sensing channels. By selecting appropriate filters 75, the light channels 71 can be configured to receive channels within a corresponding wavelength range.

[0104] For example, the multispectral sensor 70 includes the same light channel 71, such as two or more light channels 71 having the same filter 75, so that the two or more light channels 71 having the same filter 75 can receive the same wavelength range.

[0105] For example, one of the two or more light channels 71 can serve as a flicker channel. The flicker channel can sample ambient light to detect the frequency of the light source and adjust the exposure time according to the frequency information of the light source, thereby more accurately eliminating flicker in the image and obtaining a higher-resolution image.

[0106] For example, the multispectral sensor 70 may include eight or ten light channels 71.

[0107] In some possible implementations, the light channel 71 has a channel center 71b. The channel center 71b is located on the axis of the light-entry section 72. Figure 12 The channel center 71b shown in the diagram does not represent an actual physical structure. There are two or more light channels 71 in each row. In adjacent rows of light channels 71, along the column direction Y, the light channels 71 in one row are staggered from those in the other row. In adjacent rows of light channels 71, there is a line connecting one channel center 71b in one row to an adjacent channel center 71b in another row, and the angle between this line and the column direction Y is not zero. In each row of light channels 71, there is a fifth gap 705 between adjacent light channels 71. Specifically, in adjacent rows of light channels 71, the light channels 71 in one row correspond to the fifth gap 705 in the other row.

[0108] It should be noted that the setting of one row of light channels 71 corresponding to the fifth gap 705 of another row can refer to the light channels 71 and the fifth gap 705 being distributed along the column direction Y. Alternatively, the setting of one row of light channels 71 corresponding to the fifth gap 705 of another row can also refer to the fact that, along the column direction Y, two adjacent fifth gaps 705 are not on the same straight line, so that the fifth gap 705 can be opposite to the edge of the light channel 71.

[0109] The lines connecting the channel centers 71b of two adjacent light channels 71 in one row to the corresponding channel center 71b of a light channel 71 in another row form a triangle. Therefore, in the column direction Y, the perpendicular length between the line connecting the channel centers 71b of two adjacent light channels 71 in one row and the channel center 71b of a light channel 71 in another row is less than the length of the line connecting any two of the three channel centers 71b. Consequently, the spacing between adjacent rows of light channels 71 is smaller along the column direction Y. This allows for a reduction in the overall area occupied by the sensor array 76 while maintaining high detection performance of the multispectral sensor 70, improving space utilization and facilitating the miniaturization design of the multispectral sensor 70. This enables the multispectral sensor 70 to be integrated into a compact electronic device 10.

[0110] In some examples, the lines connecting the center 71b of two adjacent light channels 71 in one row to the center 71b of a corresponding light channel 71 in another row form an equilateral triangle, thus ensuring that the distance D between any two of the three channel centers 71b is equal. Therefore, equal spacing between the three light channels 71 helps reduce the likelihood of crosstalk between adjacent light channels 71 due to small spacing, thereby guaranteeing the detection accuracy and performance of the multispectral sensor 70.

[0111] In some feasible implementations, the center 71b of each light channel 71 in each row of light channels 71 is located on the same straight line, so that the light channels 71 are arranged in a regular and orderly manner, which helps to ensure the overall size of the multispectral sensor 70 is regular. For example, the light channels 71 are set at equal intervals.

[0112] In some feasible implementations, the projected areas of each optical lens 74 are identical, and the shapes and sizes of each light-entry portion 72 are the same. This helps to ensure the consistency of the field of view of each light channel 71 and to guarantee the detection accuracy of the multispectral sensor 70. For example, the outer contour of the projected area of ​​each optical lens 74 is circular. The light-entry portion 72 can be a circular aperture or a conical aperture.

[0113] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, an indirect connection through an intermediate medium, or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.

[0114] The embodiments described in this application are not intended to indicate or imply that the devices or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the embodiments of this application. In the description of the embodiments of this application, "a plurality of" means two or more, unless otherwise precisely specified.

[0115] The terms "first," "second," "third," "fourth," etc. (if present) in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, systems, products, or apparatus.

[0116] The term "multiple" in this article refers to two or more. The term "and / or" in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. Furthermore, the character " / " in this article generally indicates an "or" relationship between the preceding and following related objects; in formulas, the character " / " indicates a "division" relationship between the preceding and following related objects.

[0117] It is understood that the various numerical designations used in the embodiments of this application are merely for descriptive convenience and are not intended to limit the scope of the embodiments of this application.

[0118] It is understood that, in the embodiments of this application, the order of the above-mentioned process numbers does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

Claims

1. A multispectral sensor (70), characterized in that, At least including: Sensor array (76); The sensor array (76) includes at least three rows of photoelectric sensors, which are divided into an intermediate sensor group (76b) and an edge sensor group (76c). Along the column direction (Y) of the sensor array (76), the intermediate sensor group (76b) is located between two edge sensor groups (76c). The intermediate sensor group (76b) includes a first photoelectric sensor (761), and the edge sensor group (76c) includes a second photoelectric sensor (762). Along the row direction (X) of the sensor array (76), a row of first photoelectric sensors (761) includes N first photoelectric sensors (761) and N-1 first gaps (701), where N is an integer greater than or equal to two. The first gaps (701) are formed between two adjacent first photoelectric sensors (761). The number of second photoelectric sensors (762) in a row adjacent to the row of first photoelectric sensors (761) is N-1. The second photoelectric sensors (762) and the first gaps (701) are distributed along the column direction (Y).

2. The multispectral sensor (70) according to claim 1, characterized in that, The first photoelectric sensor (761) has a first center (761a), and the intermediate sensor group (76b) includes two or more rows of the first photoelectric sensors (761), with the first center (761a) of each column of the first photoelectric sensors (761) located on the same straight line.

3. The multispectral sensor (70) according to claim 2, characterized in that, The shape and size of the first photoelectric sensor (761) are the same as those of the second photoelectric sensor (762).

4. The multispectral sensor (70) according to claim 3, characterized in that, The second photoelectric sensor (762) has a second center (762a), and the line connecting one second center (762a) and the two adjacent first centers (761a) forms an isosceles triangle.

5. The multispectral sensor (70) according to claim 4, characterized in that, The second photoelectric sensor (762) has a second center (762a), and the line connecting one second center (762a) and two adjacent first centers (761a) forms an equilateral triangle.

6. The multispectral sensor (70) according to claim 2, characterized in that, The number of second photoelectric sensors (762) in a row is three or more, wherein, along the row direction (X), at least one of the two outermost second photoelectric sensors (762) has a photosensitive area greater than that of the first photoelectric sensor (761).

7. The multispectral sensor (70) according to claim 6, characterized in that, Along the row direction (X), at least one of the two outermost second photoelectric sensors (762) has a photosensitive area greater than that of the second photoelectric sensor (762) located in the middle region.

8. The multispectral sensor (70) according to claim 7, characterized in that, Along the row direction (X), the shape and size of the second photoelectric sensor (762) located in the middle region are the same as those of the first photoelectric sensor (761).

9. The multispectral sensor (70) according to any one of claims 2 to 8, characterized in that, Along the row direction (X), there is a second gap (702) between two adjacent second photoelectric sensors (762); or, along the column direction (Y), there is a third gap (703) between the first photoelectric sensor (761) and the second photoelectric sensor (762).

10. The multispectral sensor (70) according to claim 9, characterized in that, Along the column direction (Y), the first gap (701) and the second gap (702) are not on the same straight line.

11. The multispectral sensor (70) according to any one of claims 1 to 8, 10, characterized in that, The intermediate sensor group (76b) includes two or more rows of the first photoelectric sensors (761), and along the column direction (Y), there is a fourth gap (704) between two adjacent first photoelectric sensors (761).

12. The multispectral sensor (70) according to any one of claims 1 to 8 and 10, characterized in that, The first photoelectric sensor (761) has a first center (761a), and along the row direction (X), the first centers (761a) of each row of the first photoelectric sensor (761) are located on the same straight line.

13. The multispectral sensor (70) according to any one of claims 1 to 8, 10, characterized in that, The second photoelectric sensor (762) has a second center (762a), and along the row direction (X), the second centers (762a) of each row of the second photoelectric sensor (762) are located on the same straight line.

14. The multispectral sensor (70) according to any one of claims 1 to 7, characterized in that, In the intermediate sensor group (76b), each of the first photoelectric sensors (761) is rectangular.

15. The multispectral sensor (70) according to any one of claims 1 to 8, 10, characterized in that, The multispectral sensor (70) includes a light channel (71); The light channel (71) includes a light-inlet section (72) and an optical lens (74). The light-inlet section (72) is configured to allow external light to enter the light channel (71), and the optical lens (74) is configured to change the transmission path of the light to reach the sensor array (76). Along the axial direction of the light-inlet section (72), the orthographic projection of the sensor array (76) is located within the orthographic projection of the optical lens (74).

16. The multispectral sensor (70) according to claim 15, characterized in that, The multispectral sensor (70) includes two or more rows of light channels (71), each light channel (71) having a channel center (71b). In each row of light channels (71), there is a fifth gap (705) between two adjacent light channels (71). In two adjacent rows of light channels (71), the light channels (71) in one row are set to correspond to the fifth gap (705) in the other row, and the line connecting two adjacent light channels (71) in one row with the channel center (71b) of one corresponding light channel (71) in the other row forms a triangle.

17. The multispectral sensor (70) according to claim 16, characterized in that, The line connecting two adjacent light channels (71) in one row to the channel center (71b) of a corresponding light channel (71) in another row forms an equilateral triangle.

18. The multispectral sensor (70) according to claim 16 or 17, characterized in that, Along the row direction (X), in each row of the light channels (71), the center (71b) of each light channel (71) is located on the same straight line.

19. The multispectral sensor (70) according to claim 16 or 17, characterized in that, Each of the optical lenses (74) has the same projected area, and each of the light-inlet portions (72) has the same shape and size.

20. The multispectral sensor (70) according to claim 16 or 17, characterized in that, In two or more rows of light channels (71), at least one of the light channels (71) is a color channel for visible light.

21. An electronic device, characterized in that, It includes at least the multispectral sensor (70) as described in any one of claims 1 to 20.

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