Camera components and electronics

Abstract

The present disclosure discloses a camera assembly and an electronic device, which relate to the technical field of electronic products. The camera assembly comprises: a lens, a photosensitive chip and a photosensitive component; the photosensitive chip is arranged relative to the lens to obtain image information; the photosensitive component is arranged relative to the lens to detect the position of the lens relative to the photosensitive chip.

Description

Technical Field

[0001] The present disclosure relates to the technical field of electronic products, and in particular to a camera assembly and an electronic device. Background Art

[0002] In the current mobile phone industry, the ability to take photos has become one of the core selling points of smartphones. Among them, how to improve the focus and anti-shake performance of the camera is a research direction that all mobile phone companies are competing to research. For anti-shake and focus, the relevant technology mainly connects the lens to the camera motor, and drives the lens movement through the camera motor to complete the focus and anti-shake functions.

[0003] In order to achieve precise control of the lens position, the prior art proposes that a Hall element can be set inside the camera motor, and the Hall element can sense the position of the magnet in the camera motor in real time to determine the real-time position of the lens. Due to the limitation of the Hall element, the camera motor must be designed in the form of a moving magnet. During the focusing and anti-shake process, the magnet inside the camera motor moves, which may cause magnetic interference. It can be seen that the existing optical anti-shake device is prone to magnetic interference. Summary of the invention

[0004] The present disclosure provides a camera assembly and an electronic device, which can avoid the problem of magnetic interference during focusing and anti-shake.

[0005] In a first aspect, an embodiment of the present disclosure provides a camera assembly, including: a lens, a photosensitive chip, and a photosensitive assembly;

[0006] The photosensitive chip is arranged opposite to the lens to obtain image information;

[0007] The photosensitive component is arranged opposite to the lens to detect the position of the lens relative to the photosensitive chip.

[0008] In a second aspect, an embodiment of the present disclosure provides an electronic device, comprising the camera assembly described in the first aspect.

[0009] The camera assembly provided by the embodiment of the present disclosure can use a photosensitive assembly to detect status information of light emitted by a lens during the process of focusing and anti-shake, and determine the position of the lens relative to the photosensitive chip based on the status information. In this way, compared with using a Hall element to detect the position of the lens, detecting the position of the lens by using a photosensitive assembly can avoid the problem of magnetic interference during the process of focusing and anti-shake. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is one of the structural schematic diagrams of the camera assembly provided in the embodiment of the present disclosure;

[0011] Figure 2 is one of the structural schematic diagrams within the target plane in the embodiment of the present disclosure;

[0012] Figure 3 yes Figure 2 A partial enlarged view of the junction between the first photosensitive unit and the light spot;

[0013] Figure 4 This is the second structural schematic diagram within the target plane in the embodiment of the present disclosure;

[0014] Figure 5 yes Figure 4 A partial enlarged view of the junction between the middle photosensitive component and the light spot;

[0015] Figure 6 This is the third structural schematic diagram within the target plane in the embodiment of the present disclosure;

[0016] Figure 7 is a schematic diagram of the internal structure of the pinhole imaging assembly in an embodiment of the present disclosure;

[0017] Figure 8 This is the second structural schematic diagram of the camera assembly provided by the embodiment of the present disclosure;

[0018] Fig. 9 This is the third structural schematic diagram of the camera assembly provided in the embodiment of the present disclosure;

[0019] Fig.10 is one of the schematic diagrams of light propagation in the embodiment of the present disclosure;

[0020] Fig.11 This is the second schematic diagram of light propagation in the embodiment of the present disclosure. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present disclosure to clearly describe the technical solutions in the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present disclosure are within the scope of protection of the present disclosure.

[0022] The terms "first", "second", etc. in the specification and claims of the present disclosure are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable when appropriate, so that the embodiments of the present disclosure can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second", etc. are generally of the same type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0023] The camera assembly and the electronic device provided by the embodiments of the present disclosure are described in detail below through specific embodiments and their application scenarios in conjunction with the accompanying drawings.

[0024] See also Figures 1 to 9 , is a structural schematic diagram of a camera assembly provided in an embodiment of the present disclosure, wherein the camera assembly includes: a lens 100, a photosensitive chip 200 and a photosensitive assembly 400;

[0025] The photosensitive chip 200 is arranged opposite to the lens 100 to obtain image information;

[0026] The photosensitive component 400 is disposed opposite to the lens 100 to detect the position of the lens 100 relative to the photosensitive chip 200 .

[0027] The photosensitive chip 200 may be a common image sensor in a camera, and the shooting function of the camera assembly is realized through the photosensitive chip 200. When the camera assembly is applied to an electronic device, the photosensitive chip 200 may be electrically connected to a processor of the electronic device.

[0028] The above-mentioned photosensitive component 400 may include a photosensitive device for identifying whether there is light, wherein the photosensitive device may be a photosensitive device such as a charge coupled device (CCD) or a complementary metal oxide semiconductor (CMOS). For example, a large number of photosensitive devices may be arranged in the target plane, and the state of the light spot in the target plane may be determined by detecting whether there is light at each position in the target plane through each photosensitive device, and the target plane is the plane where the photosensitive component 400 is located. Since the state such as the size or position of the light spot in the target plane will also change accordingly during the movement of the lens 100, and the change state of the light spot is usually associated with the movement state of the lens 100. Therefore, the association between the change state of the light spot and the movement state of the lens 100 can be predetermined through a limited number of experiments, that is, the displacement of the lens 100 can be determined according to the change state of the detected light spot, and the initial position of the lens 100 is known, therefore, the real-time position of the lens 100 can be determined according to the initial position of the lens 100 and the displacement of the lens 100.

[0029] In this implementation, during the focusing and anti-shake process, the photosensitive component 400 can be used to detect the status information of the light emitted by the lens 100, and the position of the lens 100 relative to the photosensitive chip 200 can be determined based on the status information. In this way, compared with the use of Hall elements to detect the position of the lens 100, the camera motor can use a non-magnetic motor, thereby avoiding the problem of magnetic interference during the focusing and anti-shake process.

[0030] Optionally, after the incident light passes through the lens 100 , a light spot area 500 is formed, the photosensitive chip 200 is located in the light spot area 500 , and the photosensitive component 400 is at least partially located in the light spot area 500 .

[0031] The photosensitive chip 200 and the photosensitive component 400 may be located in the same plane or in different planes. Figure 1 In one embodiment of the present disclosure, the photosensitive chip 200 and the photosensitive component 400 are respectively located in the same target plane, the light emitted by the lens 100 forms a light spot area 500 in the target plane, and the photosensitive chip 200 is located inside the light spot area 500 to achieve the shooting function of the camera component. Correspondingly, at least part of the photosensitive component 400 is also located within the coverage range of the light emitted by the lens 100, so as to detect the position of the lens 100 relative to the photosensitive chip 200 according to the change of light.

[0032] When the lens 100 moves in a plane parallel to the target plane, the light spot area 500 formed in the target plane by the light transmitted from the lens 100 to the target plane will move in the target plane, and the displacement of the light spot area 500 is associated with the displacement of the lens 100. At the same time, the movement direction of the light spot area 500 is consistent with the movement direction of the lens 100. For example, see Fig.10 , where (a) is the initial state of the lens 100, and (b) is the state after the lens 100 is shifted upward. It can be seen that after the lens 100 is shifted upward, the position of the light spot area 500 formed on the plane where the photosensitive chip 200 is located will also shift upward. (c) is the state after the lens 100 is shifted downward. It can be seen that after the lens 100 is shifted downward, the position of the light spot area 500 formed on the plane where the photosensitive chip 200 is located will also shift downward.

[0033] Specifically, the photosensitive component 400 can be used to detect position change information such as the displacement and movement direction of the light spot area 500. After the photosensitive component 400 detects the position change information of the light spot area 500, the position change information of the lens 100 can be determined based on the correlation between the displacement of the light spot area 500 and the displacement of the lens 100. Since the initial position of the lens 100 is usually known, the real-time position of the lens 100 can be determined based on the initial position and the position change information of the lens 100.

[0034] Accordingly, when the lens 100 moves in a direction perpendicular to the target plane, that is, when the lens 100 moves toward or away from the target plane, the size of the light spot area 500 will change. For example, see Fig.11 , (d) is the initial state of the lens 100. (e) is the state after the lens 100 moves in a direction away from the photosensitive chip 200. At this time, the size of the light spot area 500 formed on the plane where the photosensitive chip 200 is located will be reduced. (f) is the state after the lens 100 moves in a direction toward the photosensitive chip 200. At this time, the size of the light spot area 500 formed on the plane where the photosensitive chip 200 is located will be enlarged. It can be seen that the scaling amount of the light spot area 500 is associated with the distance that the lens 100 moves in a direction perpendicular to the target plane.

[0035] The photosensitive component 400 can also be used to detect the zoom amount of the light spot area 500. In this way, based on the correlation between the zoom amount of the light spot area 500 and the distance that the lens 100 moves in the direction perpendicular to the target plane, the distance that the lens 100 moves in the direction perpendicular to the target plane can be determined, which is beneficial to determine the real-time position of the lens 100.

[0036] Among them, the above-mentioned "correlation between the displacement of the spot area 500 and the displacement of the lens 100" and "correlation between the zoom amount of the spot area 500 and the distance moved by the lens 100 in the direction perpendicular to the target plane" can be obtained through a limited number of experiments.

[0037] In this embodiment, during the focusing and anti-shake process, the photosensitive component 400 can be used to detect the state information of the light spot formed by the light emitted by the lens 100 in the target plane, and the position of the lens 100 relative to the photosensitive chip 200 can be determined based on the state information of the light spot. In this way, compared with the use of Hall elements to detect the position of the lens 100, the camera motor can use a non-magnetic motor, thereby avoiding the problem of magnetic interference during the focusing and anti-shake process.

[0038] Optionally, the photosensitive component 400 includes a plurality of photosensitive pixels arranged in an array, and the photosensitive pixels are used to generate a photosensitive signal after receiving incident light;

[0039] The light spot formed by the incident light falls on the photosensitive surface of the photosensitive component 400 to form a detection light spot 412;

[0040] The area of ​​the detection light spot 412 or the length along a preset direction is obtained through the photosensitive pixel to obtain the position of the lens 100 relative to the photosensitive chip 200.

[0041] The photosensitive component 400 may include a conventional photosensitive device in the related art, for example, the photosensitive device may be a conventional photosensitive chip, because the conventional photosensitive device usually includes a large number of photosensitive pixels arranged in an array. Therefore, the shape of the detection spot 412 and the position change state of the detection spot 412 can be determined according to the detection results of the photosensitive pixels at different positions in the photosensitive device, and then the position of the lens 100 relative to the photosensitive device can be determined according to the shape and / or position change state of the detection spot 412.

[0042] The photosensitive surface may be arranged at the edge of the light spot area 500. Specifically, a portion of the photosensitive surface may be located within the light spot area 500, and another portion of the photosensitive surface may be located outside the light spot area 500. The portion of the photosensitive surface located within the light spot area 500 may form the area where the detection light spot 412 is located. When the position of the lens 100 changes, since the shape and / or position of the light spot area 500 will also change accordingly, the "area and position" of the detection light spot 412 will also change accordingly. Therefore, the correlation between the "area and position" of the detection light spot 412 and the position of the lens 100 may be predetermined, and then the real-time position of the lens 100 may be determined based on the detected "area and position" of the detection light spot 412.

[0043] For example, see Figures 4 to 5 When the photosensitive surface of the photosensitive component 400 is rectangular, the area of ​​the detection light spot 412 can be determined according to the photosensitive pixels to determine the relative position between the lens 100 and the photosensitive chip 200. Figures 2 to 3 When the photosensitive surface of the photosensitive component 400 is in a strip shape, the length of the detection spot 412 along the length direction of the photosensitive surface can be determined according to the photosensitive pixels to determine the relative position between the lens 100 and the photosensitive chip 200.

[0044] In this embodiment, by utilizing the feature that photosensitive pixels in conventional photosensitive devices are arranged in an array, the area of ​​the detection spot 412 or the length along a preset direction is determined according to the detection result of each photosensitive pixel, and then the position of the lens 100 relative to the photosensitive chip 200 is determined according to the area of ​​the detection spot 412 or the length along the preset direction.

[0045] Optionally, the photosensitive component 400 includes a plurality of photosensitive units 411 arranged in an array, each of the photosensitive units 411 is provided with a plurality of photosensitive pixels arranged in an array, and the photosensitive pixels are used to generate a photosensitive signal after receiving incident light;

[0046] The light spot formed by the incident light falls on the photosensitive surface of the photosensitive component 400 to form a detection light spot 412;

[0047] According to the coverage information of the detection light spot 412 on the photosensitive unit 411 , the position of the lens 100 relative to the photosensitive chip 200 is obtained.

[0048] The photosensitive component 400 may include a plurality of photosensitive elements, and one photosensitive element forms a photosensitive unit 411 .

[0049] The above-mentioned coverage information may include coverage information of which photosensitive units 411 among the multiple photosensitive units 411 are covered by the detection light spot 412. Wherein, whether the photosensitive unit 411 is covered can be determined according to the detection result of the photosensitive pixel in the photosensitive unit 411. In this way, the position of the detection light spot 412 can be determined according to the coverage information, and then the position of the lens 100 relative to the photosensitive chip 200 can be determined according to the position of the detection light spot 412.

[0050] In this embodiment, since the photosensitive component 400 includes a plurality of photosensitive units 411 arranged in an array, the position of the detection light spot 412 can be determined by determining the coverage information of which photosensitive units 411 among the plurality of photosensitive units 411 are covered by the detection light spot 412, and then the position of the lens 100 relative to the photosensitive chip 200 can be determined based on the position of the detection light spot 412.

[0051] Optionally, the photosensitive unit 411 covered by the detection light spot 412 includes a first photosensitive element 410 that is completely covered and a second photosensitive element 420 that is only partially covered;

[0052] The position of the lens 100 relative to the photosensitive chip 200 is obtained according to the number of the first photosensitive elements 410 and / or the number of the second photosensitive elements 420 .

[0053] See also Figure 5 , the multiple photosensitive units 411 are 1.1 to 10.10 respectively, and the multiple photosensitive units 411 are arranged in a rectangular array. It can be understood that the first photosensitive element 410 is a photosensitive unit 411 completely located inside the detection light spot 412. For example, the first photosensitive element 410 may include photosensitive units 411 such as 6.1, 7.2, and 9.4. Correspondingly, the second photosensitive element 420 may be a photosensitive unit 411 located at the edge of the detection light spot 412, and only a part of the area is located inside the detection light spot 412. For example, the first photosensitive element 410 may include photosensitive units 411 such as 5.1, 5.2, and 6.4.

[0054] It is understandable that the type of the photosensitive unit 411 can be determined based on whether all the photosensitive pixels in the photosensitive unit 411 sense the light. For example, when all the photosensitive pixels in a photosensitive unit 411 sense the light, the photosensitive unit 411 is determined to be the first photosensitive element 410. Correspondingly, when only some of the photosensitive pixels in a photosensitive unit 411 sense the light, the photosensitive unit 411 is determined to be the second photosensitive element 420. In addition, when no photosensitive pixel in a photosensitive unit 411 senses the light, it is determined that the photosensitive unit 411 is located outside the detection light spot 412, for example, photosensitive units 411 such as 1.1 and 1.2.

[0055] In this embodiment, the inner area of ​​the detection spot 412 can be determined according to the number of the first photosensitive elements 410, and the edge area of ​​the detection spot 412 can be determined according to the number of the second photosensitive elements 420. That is, the position of the detection spot 412 can be determined according to the number of the first photosensitive elements 410 and / or the number of the second photosensitive elements 420, and then the position of the lens 100 relative to the photosensitive chip 200 can be determined according to the position of the detection spot 412, and then the lens 100 can be focused or anti-shake can be performed according to the position of the lens 100 relative to the photosensitive chip 200. In addition, since it is not necessary to count the number of covered photosensitive pixels in each photosensitive unit 411 in the process of determining the first photosensitive element 410, and the number of the photosensitive units 411 is relatively small, the number of the first photosensitive elements 410 and the second photosensitive elements 420 can be quickly counted, thereby reducing the time required for focusing or anti-shake.

[0056] Optionally, the photosensitive unit 411 covered by the detection light spot 412 includes a first photosensitive element 410 that is completely covered and a second photosensitive element 420 that is only partially covered;

[0057] Acquire the number of the first photosensitive elements 410 , and acquire the number of the photosensitive pixels in each of the second photosensitive elements 420 that are completely covered by the detection light spot 412 ;

[0058] The position of the lens 100 relative to the photosensitive chip 200 is obtained according to the number of the first photosensitive elements 410 and the number of the photosensitive pixels in the second photosensitive element 420 that are completely covered by the detection light spot 412 .

[0059] In this embodiment, since only part of the photosensitive pixels in the second photosensitive element 420 are covered by the detection light spot 412, the precise position of the edge of the detection light spot 412 can be determined by counting the number of photosensitive pixels in the second photosensitive element 420 that are covered by the detection light spot 412. In this way, the embodiment of the present disclosure can achieve precise positioning of the detection light spot 412 by counting the number of the first photosensitive elements 410 and the number of photosensitive pixels in each of the second photosensitive elements 420 that are completely covered by the detection light spot 412, and then can achieve precise focusing of the lens 100 or precise anti-shake of the lens 100 according to the precise positioning result.

[0060] Optionally, the displacement between the lens 100 and the photosensitive chip 200 is acquired according to the change of the area covered by the detection light spot 412 of the photosensitive unit 411 or the change of the length or position of the detection light spot 412 in a preset direction.

[0061] Specifically, it can be known from the above discussion that the real-time position of the detection spot 412 can be determined according to the area of ​​the detection spot 412 covering the photosensitive unit 411 or the length or position of the detection spot 412 in a preset direction. In this way, during the movement of the lens 100, the position change of the detection spot 412 can be determined by the change in the area of ​​the detection spot 412 covering the photosensitive unit 411 or the change in the length or position of the detection spot 412 in a preset direction between the start and end of the movement of the lens 100, and then the displacement between the lens 100 and the photosensitive chip 200 can be determined according to the position change of the detection spot 412. In the focusing process, after obtaining the displacement between the lens 100 and the photosensitive chip 200, the focusing amount can be determined according to the displacement. Correspondingly, in the anti-shake process, after obtaining the displacement between the lens 100 and the photosensitive chip 200, the position of the lens 100 or the photosensitive chip 200 can be compensated according to the displacement to achieve anti-shake.

[0062] Optionally, the light spot area 500 includes an imaging area and a detection area, and the photosensitive surface of the photosensitive chip 200 is located in the imaging area;

[0063] The photosensitive component 400 includes a pinhole imaging component and a photosensitive element, wherein the pinhole imaging component is disposed between the photosensitive element and the lens 100, and the photosensitive element is located within the detection area;

[0064] The incident light passes through the pinhole imaging assembly and falls on the photosensitive surface of the photosensitive element to form a detection light spot 412;

[0065] According to the size of the detection light spot 412 , the distance between the lens 100 and the photosensitive chip 200 is adjusted.

[0066] See also Figures 8 to 9 The pinhole imaging assembly may include a light shield 443 , the photosensitive element is arranged in a target plane, the light shield 443 is buckled on the target plane, and the photosensitive element is located in the light shield 443 .

[0067] The light shield 443 includes a baffle 442 opposite to the photosensitive element, and a light-transmitting hole 44211 is formed on the baffle 442. The light entering the light shield 443 from the light-transmitting hole 44211 divides the photosensitive element into a first area 4 and a second area, wherein the first area 4 is an area irradiated with light, and the second area is an area not irradiated with light. The first area 4 forms the area where the detection light spot 412 is located.

[0068] The photosensitive element may be a photosensitive element such as a charge coupled device (CCD) or a complementary metal oxide semiconductor (CMOS). The photosensitive element may include a plurality of pixels arranged in an array, or the photosensitive element may include a plurality of photosensitive units 411 arranged in an array, and the photosensitive unit 411 includes a plurality of pixels arranged in an array. In this way, the size of the detection spot 412 may be determined by the photosensitive element, and the specific determination process is similar to that of the above embodiment, and will not be described here to avoid repetition.

[0069] Specifically, due to the shielding of the light shield 443, the light entering from the light-transmitting hole 44211 can only cover a partial area of ​​the photosensitive element. Fig.11 , (d) is the initial state of the lens 100. (e) is the state after the lens 100 moves in a direction away from the baffle 442. At this time, the size of the detection spot 412 formed in the photosensitive element by the light entering from the light-transmitting hole 44211 will be reduced. (f) is the state after the lens 100 moves in a direction toward the baffle 442. At this time, the size of the detection spot 412 formed in the photosensitive element by the light entering from the light-transmitting hole 44211 will be enlarged. It can be seen that the scaling amount of the spot formed in the photosensitive element by the light entering from the light-transmitting hole 44211 is correlated with the distance that the lens 100 moves in a direction perpendicular to the photosensitive element, wherein the scaling amount of the detection spot 412 formed in the photosensitive element is the scaling amount of the first area 4 mentioned above.

[0070] It is understandable that during the movement of the lens 100, the photosensitive element is always located inside the light spot area 500, thereby avoiding the problem that after the lens 100 moves in a plane parallel to the target plane, the position between the lens 100 and the photosensitive chip 200 cannot be detected by the pinhole imaging component because the photosensitive element moves outside the light spot area 500. In addition, the light-transmitting hole 44211 can be a circular hole. The baffle 442 can be a square plate.

[0071] Optionally, the pinhole imaging assembly includes a concave lens 444, and the baffle 442 is located between the photosensitive element and the concave lens 444. The incident light passes through the concave lens 444 and the light-transmitting hole 4421 in sequence and then falls on the photosensitive surface of the photosensitive element to form the detection spot 412.

[0072] See also Fig. 9 In the embodiment of the present disclosure, a concave lens 444 is added to the pinhole imaging assembly. Thus, before light enters the light-transmitting hole 44211, it needs to pass through the concave lens 444 for signal amplification processing, which is beneficial to improving the detection accuracy of the photosensitive element for detecting the scaling amount of the detection spot 412.

[0073] Optionally, the light spot area 500 includes an imaging area and a detection area, and the photosensitive surface of the photosensitive chip 200 is located in the imaging area;

[0074] A portion of the photosensitive component 400 is located within the detection area, and another portion of the photosensitive component 400 is located outside the light spot area 500 .

[0075] See also Figure 4 , the imaging area is located inside the light spot area 500, and during the movement of the lens 100, the imaging area is always located inside the light spot area 500, so that it can be ensured that the photosensitive chip 200 can always receive the light incident from the lens 100, and further ensure that the photosensitive chip 200 can normally complete the imaging process of the camera assembly. Accordingly, the detection area can be other areas in the light spot area 500 except the imaging area, or the detection area can also be a part of other areas in the light spot area 500 except the imaging area.

[0076] See also Figure 2-Figure 5, since a part of the photosensitive element is located in the detection area, and another part of the photosensitive element is located outside the light spot area 500, and during the movement of the lens 100, the light spot area 500 will also move accordingly, thereby causing the position of the photosensitive element falling into the detection area to change. Therefore, the corresponding relationship between the position of the lens 100 and the position of the photosensitive element falling into the detection area can be predetermined. In this way, the position of the photosensitive element falling into the detection area can be determined through the detection result of the photosensitive element, and then the position of the lens 100 can be determined based on the corresponding relationship.

[0077] Optionally, the distance between the lens 100 and the photosensitive chip 200 is correspondingly obtained according to the length of the detection light spot 412 in the first direction; or

[0078] According to the length change of the detection light spot 412 in the first direction, the distance change between the lens 100 and the photosensitive chip 200 is correspondingly obtained.

[0079] Specifically, Figure 2-3 As shown, when the photosensitive element is in the shape of a strip, the detection light spot 412 is also in the shape of a strip. From the above discussion, it can be seen that during the movement of the lens 100, the light spot area 500 will also move accordingly, thereby causing the position of the photosensitive element falling into the detection area to change. Therefore, the correspondence between the position of the lens 100 and the length of the detection light spot 412 can be predetermined, wherein the first direction is the length direction of the photosensitive element. In this way, the distance between the lens 100 and the photosensitive chip 200 can be obtained according to the length of the detection light spot 412 in the first direction. Accordingly, the change in the distance between the lens 100 and the photosensitive chip 200 can also be obtained according to the change in the length of the detection light spot 412 in the first direction.

[0080] Optionally, the light spot area 500 includes an imaging area and a detection area, and the photosensitive surface of the photosensitive chip 200 is located in the imaging area;

[0081] The photosensitive component 400 includes a first photosensitive element and a second photosensitive element.

[0082] A portion of the first photosensitive element is located within the detection area, and another portion of the first photosensitive element is located outside the light spot area 500; a portion of the second photosensitive element is located within the detection area, and another portion of the second photosensitive element is located outside the light spot area 500;

[0083] The first photosensitive element includes a plurality of photosensitive units 411 arranged along a first direction, and the second photosensitive element 420 includes a plurality of photosensitive units 411 arranged along a second direction, and the first direction and the second direction are arranged at an angle.

[0084] See also Figure 2 In one embodiment of the present disclosure, the first photosensitive element and the second photosensitive element are strip-shaped, and the first photosensitive element is arranged along the first direction, and the second photosensitive element is arranged along the second direction. In this way, during the movement of the lens 100, the first photosensitive element and the second photosensitive element can respectively detect the real-time position of the detection light spot 412 along the first direction and the second direction. In this way, the real-time position of the detection light spot 412 in the first direction and the second direction is integrated to determine the accurate positioning of the detection light spot 412. For example, see Figure 3 In the embodiment of the present disclosure, the first photosensitive element includes 10 photosensitive units 411, wherein the first to fifth photosensitive units 411 are located outside the light spot area 500, and the sixth to tenth photosensitive units 411 are located inside the light spot area 500. Figure 3 In the state shown in FIG. 1 , when moving to the left, the photosensitive unit 411 located outside the light spot area 500 will gradually enter the light spot area 500. Figure 3 In the state shown, when moving to the right, the photosensitive unit 411 located in the light spot area 500 will gradually move outside the light spot area 500. The detection signals output by the photosensitive unit 411 located in the light spot area 500 and outside the light spot area 500 are different. Therefore, it is possible to determine which photosensitive units 411 are located in the light spot area 500 through the signals output by the multiple photosensitive units 411, and the position of each photosensitive unit 411 is known, so the real-time position of the light spot area 500 can be determined.

[0085] In this embodiment, two identification areas arranged in different directions are formed in the edge area of ​​the light spot area 500. Thus, the displacement of the light spot area 500 in different directions can be identified by the two identification areas in different directions, thereby facilitating improving the accuracy of identifying the position change of the light spot area 500.

[0086] Optionally, the first direction is perpendicular to the second direction, and the displacement of the lens 100 relative to the photosensitive chip 200 is obtained according to the length change of the detection light spot 412 in the first direction and the length change in the second direction.

[0087] See also Figure 2The light spot area 500 is a circular area, and the first photosensitive element and the second photosensitive element are arranged along the radial direction of the circular area. In this way, when the recognition ranges of the first photosensitive element and the second photosensitive element are the same, the number of photosensitive elements to be arranged can be reduced.

[0088] In this embodiment, since the first direction is perpendicular to the second direction, the displacement of the light spot area 500 in various directions can be identified based on the recognition results of the first photosensitive element and the second photosensitive element.

[0089] Optionally, the camera assembly further includes a control chip and a driving assembly 300 , wherein the control chip is connected to the photosensitive assembly 400 , and the control chip drives the lens 100 or the photosensitive chip 200 to move via the driving assembly 300 .

[0090] The above-mentioned driving assembly 300 can adopt a conventional driving motor, and specifically a non-magnetic driving motor can be adopted. The above-mentioned target plane can be parallel to the light-emitting end face of the lens 100, and the driving assembly 300 can drive the lens 100 to move toward or away from the target plane, and at the same time, the driving assembly 300 can also drive the lens 100 to move in a plane parallel to the target plane. In addition, the driving assembly 300 can also drive the movement of the photosensitive chip 200 in the target plane, or drive the photosensitive chip 200 to move in a direction perpendicular to the target plane. Specifically, the driving assembly 300 may include a first driving motor and a second driving motor, the first driving motor is used to drive the lens 100 to move toward or away from the target plane, and the second driving motor is used to drive the lens 100 to move in a plane parallel to the target plane. Among them, the first driving motor and the second driving motor are similar to the motors used to drive the camera movement in the related art.

[0091] The above-mentioned control chip can be a conventional control chip. When the camera component is applied to electronic devices such as mobile phones, during the anti-shake process, the amount of shaking of the electronic device caused by hand shaking can be detected by the gyroscope of the whole device, and then the amount of shaking is sent to the control chip. The control chip controls the driving component 300 to drive the lens 100 to move to compensate for the amount of shaking. At the same time, the control chip receives the status information fed back by the photosensitive component 400, and determines the real-time position of the lens 100 based on the status information to control the precise movement of the lens 100, thereby realizing closed-loop control of the lens 100 during the anti-shake process.

[0092] Specifically, when the light spot formed by the incident light falls on the photosensitive surface of the photosensitive component 400 to form the above-mentioned detection spot 412, the control chip obtains the position of the lens 100 relative to the photosensitive chip 200 according to the area of ​​the detection spot 412 or the length in a preset direction. The control chip drives the driving component 300 to drive the lens 100 or the photosensitive chip 200 to move according to the position of the lens 100 relative to the photosensitive chip 200, so as to realize the anti-shake or focusing process.

[0093] In addition, the above-mentioned camera component may also include a circuit board, wherein the photosensitive component 400, the control chip and the photosensitive chip 200 are arranged on the circuit board, and the circuit board is electrically connected to the driving component 300.

[0094] Optionally, the position of the orthographic projection of the photosensitive component 400 on the light-emitting end surface is relatively staggered with the position of the orthographic projection of the photosensitive chip 200 on the light-emitting end surface.

[0095] Since the above-mentioned target plane is parallel to the light-emitting end face, the position of the orthographic projection of the photosensitive component 400 on the light-emitting end face is relatively staggered with the position of the orthographic projection of the photosensitive chip 200 on the light-emitting end face, that is, the position of the orthographic projection of the photosensitive component 400 on the target plane is relatively staggered with the position of the orthographic projection of the photosensitive chip 200 on the target plane.

[0096] In one embodiment of the present disclosure, the photosensitive component 400 and the photosensitive chip 200 are respectively disposed in the target plane. Figure 2 and Figure 4 , is a schematic diagram of the positional relationship between the first photosensitive module and the photosensitive chip 200. Figure 6 , is a schematic diagram of the positional relationship between the second photosensitive module 440 and the photosensitive chip 200.

[0097] In this embodiment, since the position of the orthographic projection of the photosensitive component 400 on the light-emitting end surface is relatively staggered with the position of the orthographic projection of the photosensitive chip 200 on the light-emitting end surface, the problem of the photosensitive component 400 blocking the light incident on the photosensitive chip 200 due to the setting of the photosensitive component 400 can be avoided, thereby ensuring that the camera component can perform the shooting action normally.

[0098] Another embodiment of the present disclosure further provides an electronic device, wherein the electronic device includes the camera assembly described in the above embodiment.

[0099] In this implementation, since the electronic device includes the camera assembly described in the above embodiments, the electronic device can implement each process of the camera assembly in the above embodiments and has the same beneficial effects, which will not be described again to avoid repetition.

[0100] It should be noted that, in this article, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises one..." does not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the method and device in the embodiments of the present disclosure is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0101] The embodiments of the present disclosure are described above in conjunction with the accompanying drawings, but the present disclosure is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present disclosure, ordinary technicians in this field can also make many forms without departing from the scope of protection of the purpose of the present disclosure and the claims, all of which are within the protection of the present disclosure.

Claims

1. A camera assembly, characterized in that: include: Lenses, photosensitive chips and photosensitive components; The photosensitive chip is arranged opposite to the lens to obtain image information; The photosensitive component is arranged relative to the lens to detect the position of the lens relative to the photosensitive chip; After the incident light passes through the lens, a light spot area is formed, the photosensitive chip is located in the light spot area, and the photosensitive component is at least partially located in the light spot area; the light spot area includes an imaging area and a detection area, and the photosensitive surface of the photosensitive chip is located in the imaging area; Wherein, the photosensitive component includes a pinhole imaging component and a photosensitive element, the pinhole imaging component is arranged between the photosensitive element and the lens, and the photosensitive element is located in the detection area; after the incident light passes through the pinhole imaging component, it falls on the photosensitive surface of the photosensitive element to form a detection spot; according to the size of the detection spot, the distance between the lens and the photosensitive chip is adjusted; or, The photosensitive component includes a first photosensitive element and a second photosensitive element; a portion of the first photosensitive element is located within the detection area, and another portion of the first photosensitive element is located outside the light spot area; a portion of the second photosensitive element is located within the detection area, and another portion of the second photosensitive element is located outside the light spot area; the first photosensitive element includes a plurality of photosensitive units arranged along a first direction, and the second photosensitive element includes a plurality of photosensitive units arranged along a second direction, and the first direction is set at an angle to the second direction.

2. The camera assembly according to claim 1, characterized in that: The photosensitive component includes a plurality of photosensitive pixels arranged in an array, and the photosensitive pixels are used to generate a photosensitive signal after receiving incident light; The light spot formed by the incident light falls on the photosensitive surface of the photosensitive component to form a detection light spot; The area of ​​the detection light spot or the length along a preset direction is obtained through the photosensitive pixel to obtain the position of the lens relative to the photosensitive chip.

3. The camera assembly according to claim 1, characterized in that: The photosensitive component includes a plurality of photosensitive units arranged in an array, each of the photosensitive units is provided with a plurality of photosensitive pixels arranged in an array, and the photosensitive pixels are used to generate a photosensitive signal after receiving incident light; The light spot formed by the incident light falls on the photosensitive surface of the photosensitive component to form a detection light spot; The position of the lens relative to the photosensitive chip is obtained according to the coverage information of the detection light spot on the photosensitive unit.

4. The camera assembly according to claim 3, characterized in that: The photosensitive unit covered by the detection light spot includes a first photosensitive element that is completely covered and a second photosensitive element that is only partially covered; The position of the lens relative to the photosensitive chip is obtained according to the number of the first photosensitive elements and / or the number of the second photosensitive elements.

5. The camera assembly according to claim 3, characterized in that: The photosensitive unit covered by the detection light spot includes a first photosensitive element that is completely covered and a second photosensitive element that is only partially covered; Acquire the number of the first photosensitive elements, and acquire the number of the photosensitive pixels in each of the second photosensitive elements that are completely covered by the detection light spot; The position of the lens relative to the photosensitive chip is obtained according to the number of the first photosensitive elements and the number of the photosensitive pixels in the second photosensitive element that are completely covered by the detection light spot.

6. The camera assembly according to claim 3, characterized in that: The displacement between the lens and the photosensitive chip is obtained according to the change of the area covered by the detection light spot of the photosensitive unit or the change of the length or position of the detection light spot in a preset direction.

7. The camera assembly according to claim 1, characterized in that: The pinhole imaging assembly includes a concave lens and a baffle, wherein the baffle is located between the photosensitive element and the concave lens, and the baffle is provided with a light-transmitting hole. The incident light passes through the concave lens and the light-transmitting hole in sequence and then falls on the photosensitive surface of the photosensitive element to form the detection spot.

8. The camera assembly according to claim 1, characterized in that: The light spot area includes an imaging area and a detection area, and the photosensitive surface of the photosensitive chip is located in the imaging area; A portion of the photosensitive component is located within the detection area, and another portion of the photosensitive component is located outside the light spot area.

9. The camera assembly according to claim 8, characterized in that: According to the length of the detection light spot in the first direction, the distance between the lens and the photosensitive chip is correspondingly obtained; or According to the length change of the detection light spot in the first direction, the distance change between the lens and the photosensitive chip is correspondingly obtained.

10. The camera assembly according to claim 1, characterized in that: The first direction is perpendicular to the second direction, and the displacement of the lens relative to the photosensitive chip is obtained according to the length change of the detection light spot in the first direction and the length change in the second direction.

11. The camera assembly according to claim 1, characterized in that: It also includes a control chip and a driving component. The control chip is connected to the photosensitive component. The control chip drives the lens or the photosensitive chip to move through the driving component.

12. An electronic device, characterized in that: The camera assembly comprises the camera assembly according to any one of claims 1 to 11.

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