Imager and imaging system

Abstract

The disclosed embodiments provide an imager and an imaging system, wherein the imager comprises a base, wherein a spherical groove is formed on the base; a rotating ball, wherein a portion of the rotating ball is disposed in the spherical groove, and wherein a receiving cavity is disposed in the rotating ball; a lens, wherein the lens is fixed on the rotating ball and is located outside the spherical groove; a magnet, wherein the magnet is fixed in the receiving cavity; a plurality of first electromagnets, wherein the plurality of first electromagnets are distributed on an inner wall of the spherical groove; and a controller, wherein the controller is configured to control any one or more of the first electromagnets to generate a magnetic force that attracts the magnetic poles of the magnet, so as to drive the rotating ball to rotate by the magnetic force.

Description

Technical Field

[0001] The present disclosure relates to the field of display technology, and in particular to an imager and an imaging system. Background Art

[0002] Micromirror imagers are widely used in optical sensing, laser radar, 3D cameras, barcode scanning, laser printers, medical imaging, etc. In addition, micromirror imagers can also be applied to digital displays, such as high-definition televisions, laser micro-projections, digital cinemas, automotive head-up displays (HUDs), laser keyboards, augmented reality (AR), etc.

[0003] In the related art, a micromirror imager includes a micromirror assembly with a size in the micrometer or nanometer range. A mechanical force or an electric field force is applied to the micromirror assembly by MEMS (Micro-Electro-Mechanical System) to rotate the lens in the micromirror assembly, thereby adjusting the laser incident on the lens for imaging. The lens of the micromirror assembly in the micromirror imager is connected to one end of the rotating shaft, and the lens rotates relative to the rotating shaft under the action of the mechanical force or the electric field force, which makes the lens supported only by the rotating shaft, resulting in poor stability of the micromirror assembly, and further poor stability of the imager. Summary of the invention

[0004] The purpose of the embodiments of the present disclosure is to provide an imager and an imaging system to improve the stability of the imager. The specific technical solution is as follows:

[0005] An aspect of an embodiment of the present disclosure provides an imager, the imager comprising:

[0006] A base, wherein a spherical groove is formed on the base;

[0007] A rotating ball, a portion of which is placed in the spherical groove, and a receiving cavity is provided in the rotating ball;

[0008] A lens, wherein the lens is fixed on the rotating ball and is located outside the spherical groove;

[0009] A magnet, wherein the magnet is fixed in the accommodating cavity;

[0010] A plurality of first electromagnets, wherein the plurality of first electromagnets are distributed on the inner wall of the spherical groove;

[0011] A controller is configured to control any one or more first electromagnets to generate a magnetic force that attracts the magnetic poles of the magnet, so as to drive the rotating ball to rotate through the magnetic force.

[0012] In some embodiments, the magnet is an electromagnet.

[0013] In some embodiments, the first electromagnet includes an iron core and a coil sleeved on the iron core, the iron core is located at the center of the rotating ball, and the axis of the iron core is perpendicular to the lens.

[0014] In some embodiments, the outer surface of the rotating ball has at least two conductive areas, an insulating area is provided between the at least two conductive areas, and the magnet is electrically connected to the controller via the at least two conductive areas.

[0015] In some embodiments, the imager further comprises at least two conductive structures, each conductive structure comprising:

[0016] a conductive ball, the conductive ball being in contact with a conductive area;

[0017] A conductive rod, one end of which is fixedly connected to the base, and the other end of which is connected to the conductive ball. The conductive ball can rotate around the axis of the conductive rod, and the conductive rod is electrically connected to the controller.

[0018] In some embodiments, the imager includes four conductive structures, which are fixed on the base and evenly arranged around the notch of the spherical groove;

[0019] The outer surface of the rotating ball has four conductive areas, each of which has the insulating area between two adjacent conductive areas, and each conductive ball of the conductive structure is in contact with one conductive area.

[0020] In some embodiments, at least one insulating ball is further included, and the at least one insulating ball is located between the rotating ball and the inner wall of the spherical groove, and the diameter of the insulating ball is greater than the distance between the side of the multiple first electromagnets close to the rotating ball and the inner wall of the spherical groove.

[0021] In some embodiments, the imager also includes an organic film layer, which covers other areas of the inner wall of the spherical groove except the multiple first electromagnets, and the thickness of the organic film layer is equal to the distance between the side of the multiple first electromagnets close to the rotating ball and the inner wall of the spherical groove.

[0022] In some embodiments, the imager further comprises a support rod, the support rod being located outside the spherical groove, one end of the support rod being fixedly connected to the rotating ball, and the other end of the support rod being fixedly connected to the center of the lens; or

[0023] The plane shape of the lens is circular.

[0024] Another aspect of an embodiment of the present disclosure provides an imaging system, the imaging system comprising at least one imager as described above, the imaging system further comprising a control unit connected to controllers of the plurality of imagers.

[0025] Beneficial effects of the embodiments of the present disclosure:

[0026] An imager and an imaging system provided by the embodiment of the present disclosure include a base, a rotating ball, a lens, a magnet, a plurality of first electromagnets and a controller. Part of the rotating ball is placed in a spherical groove on the base, and the rotating ball can rotate relative to the spherical groove. In the imager provided by the embodiment of the present disclosure, the controller can control one or more first electromagnets to be energized so that the first electromagnets generate a magnetic field, and the magnetic pole of the magnet away from the lens is opposite to the polarity of the magnetic pole of the first electromagnet close to the rotating ball. Based on this, the side of the magnet away from the lens moves toward the first electromagnet under the action of the adsorption force generated by the magnetic field, thereby driving the rotating ball to rotate in the spherical groove, and then driving the lens fixedly connected to the rotating ball to rotate, so as to adjust the light incident on the lens surface, and the light is reflected by the lens and mapped to the imaging surface to achieve imaging. In the imager provided by the embodiment of the present disclosure, part of the rotating ball is placed in the spherical groove on the base, and when it is necessary to adjust the light incident on the lens surface, the rotating ball rotates relative to the spherical groove under the action of the magnetic field, and the base can support and limit the rotating ball, thereby improving the stability of the imager.

[0027] Of course, it is not necessary to achieve all the advantages described above at the same time to implement any product or method of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other embodiments can also be obtained based on these drawings.

[0029] Figure 1 A structural schematic diagram of an imager according to some embodiments of the present disclosure;

[0030] Figure 2 A top view of an imager according to some embodiments of the present disclosure;

[0031] Figure 3 is another structural schematic diagram of an imager according to some embodiments of the present disclosure;

[0032] Figure 4 A schematic structural diagram of an imaging system according to some embodiments of the present disclosure. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present disclosure to clearly and completely describe the technical solutions in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in this field based on this application belong to the scope of protection of the present disclosure.

[0034] In order to improve the stability of the imager, the embodiments of the present disclosure provide an imager and an imaging system. The imager and the imaging system provided by the embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings.

[0035] like Figure 1 As shown, the imager 100 provided in the embodiment of the present disclosure includes:

[0036] A base 1, wherein a spherical groove 11 is formed on the base 1;

[0037] A rotating ball 2, a part of which is placed in the spherical groove 11, and a receiving cavity is provided in the rotating ball 2;

[0038] The lens 3 is fixed on the rotating ball 2, and the lens 3 is located outside the spherical groove 11;

[0039] Magnet 4, which is fixed in the accommodating cavity;

[0040] A plurality of first electromagnets 5, wherein the plurality of first electromagnets 5 are distributed on the inner wall of the spherical groove 11;

[0041] The controller is configured to control any one or more first electromagnets 5 to generate a magnetic force that attracts the magnetic poles of the magnet 4, so as to drive the rotating ball 2 to rotate through the magnetic force.

[0042] In the disclosed embodiment, the rotating ball 2 is placed in the spherical groove 11, the base 1 is used to support the rotating ball 2, and the rotating ball 2 can rotate relative to the spherical groove 11 under the action of magnetic field force, electric field force, etc. In order to improve the stability of the rotating ball 2 when rotating relative to the spherical groove 11, the rotating ball 2 is made to substantially fill the entire spherical groove 11, that is, the volume of the portion of the rotating ball 2 placed in the spherical groove 11 is substantially the same as the volume of the spherical groove 11.

[0043] In some embodiments, the inner wall of the spherical groove 11 is a spherical surface, and the shape of the spherical surface is a hemisphere. When the shape of the spherical surface is a hemisphere, the volume that the spherical groove 11 can accommodate is larger, so that the volume of the portion of the rotating ball 2 placed in the spherical groove 11 is larger, so that the stability of the rotating ball 2 when rotating relative to the spherical groove 11 is higher. In addition, the shape of the spherical surface formed by the inner wall of the spherical groove 11 needs to be less than or equal to a hemisphere, so that the rotating ball 2 is easy to place in the spherical groove 11 and easy to take out of the spherical groove 11.

[0044] The lens 3 is fixedly connected to the rotating ball 2, and the lens 3 is located outside the spherical groove 11, that is, when the rotating ball 2 rotates relative to the spherical groove 11, the lens 3 is still located outside the spherical groove 11. Figure 1 As shown, the lens 3 is used to reflect the light 200 irradiated onto the lens 3 onto the imaging surface 300 to realize imaging on the imaging surface 300 .

[0045] In some embodiments, such as Figure 1 and Figure 2 As shown, the imager 100 further includes a support rod 6 , which is located outside the spherical groove 11 , one end of the support rod 6 is fixedly connected to the rotating ball 2 , and the other end of the support rod 6 is fixedly connected to the center of the lens 3 .

[0046] In the disclosed embodiment, the support rod 6 is used to connect the lens 3 and the rotating ball 2. The lens 3 is fixed to the rotating ball 2 by the support rod 6, so that there is a certain distance between the lens 3 and the rotating ball 2, so that when the rotating ball 2 rotates under the action of an external force, the lens 3 rotating synchronously with the rotating ball 2 is not easy to collide with the base 1, thereby causing damage to the lens 3.

[0047] Among them, the support rod 6 can be directly connected to the lens 3 and the rotating ball 2, such as welding, or the support rod 6 can be indirectly connected to the lens 3 and the rotating ball 2 through intermediate components such as bolts and screws. The embodiment of the present disclosure does not make specific limitations on this, and it is only necessary to ensure that the lens 3 and the rotating ball 2 are firmly connected.

[0048] In some embodiments, the plane shape of the lens 3 is circular.

[0049] In addition, the plane shape of the lens 3 is the shape of the upper and lower surfaces of the lens 3. When the upper and lower surfaces of the lens 3 are both circular, the peripheral side of the lens 3 has no edges and is relatively smooth, so that the lens 3 is less likely to collide with the base 1 when rotating. The upper and lower surfaces of the lens 3 can also be other shapes, such as rectangular, hexagonal, etc., which are not specifically limited in the embodiments of the present disclosure.

[0050] In the disclosed embodiment, the plurality of first electromagnets 5 generate a magnetic field when powered on. The controller is electrically connected to the plurality of first electromagnets 5, and is used to control a certain first electromagnet 5 among the plurality of first electromagnets 5 to be powered on, so that the first electromagnet 5 generates a magnetic field, and the polarity of the magnetic field on the side of the first electromagnet 5 close to the rotating ball 2 is opposite to the polarity of the side of the magnet 4 away from the lens 3, so that an adsorption force is generated between the magnet 4 and the first electromagnet 5, so that the magnet 4 approaches the first electromagnet 5 under the action of the magnetic force, thereby driving the rotating ball 2 and the lens 3 fixedly connected thereto to rotate, and adjusting the angle of the lens 3. Among them, the lens 3 can be a micromirror with a size of micrometer or nanometer, and the controller can also be a MEMS system capable of controlling components with a size of micrometer or nanometer.

[0051] The magnet 4 may be a permanent magnet that can maintain magnetism for a long time. The magnet 4 may also be an electromagnet. When the magnet 4 is an electromagnet, the magnet 4 generates a magnetic field when powered and thus has magnetism, and the magnet 4 may not have magnetism when not powered.

[0052] In addition, in order to prevent the magnet 4 from rotating in the rotating ball 2 under the action of the magnetic field, so that the magnet 4 cannot drive the rotating ball 2 to rotate, the magnet 4 can be fixed in the receiving cavity in the rotating ball 2. There are many ways to fix the magnet 4 in the rotating ball 2, and the embodiments of the present disclosure do not specifically limit this. In one example, the shape and volume of the magnet 4 can be made substantially the same as the shape and volume of the receiving cavity in the rotating ball 2. In another example, a groove can be set on the inner wall of the rotating ball 2, and the magnet 4 can be fixed in the groove.

[0053] The number of the first electromagnets 5 can be set according to actual needs. When the number of the first electromagnets 5 increases, the rotatable angle range of the rotating ball 2 increases, and the corresponding angle adjustment range of the lens 3 also increases. In addition, the first electromagnets 5 can be evenly distributed on the inner wall of the spherical groove 11, so as to facilitate the calculation of the rotation angle of the rotating ball 2 and the lens 3.

[0054] In some embodiments, the magnet 4 is an electromagnet.

[0055] In the disclosed embodiment, the magnet 4 may be an electromagnet, based on which the controller is electrically connected to the magnet 4 and the plurality of first electromagnets 5. The controller is used not only to control the power on of one or more first electromagnets 5, but also to control the power on of the magnet 4, so that the one or more first electromagnets 5 and the magnet 4 generate a magnetic field. The controller makes the polarity of the magnetic field generated by the side of the magnet 4 close to the inner wall of the spherical groove 11 opposite to the polarity of the magnetic field generated by the side of the first electromagnet 5 close to the rotating ball 2, thereby driving the rotating ball 2 to rotate.

[0056] In addition, the controller is also used to receive the target rotation angle of the lens 3, determine the target electromagnet among the multiple first electromagnets 5 according to the target rotation angle, and control the magnet 4 and the target electromagnet to be energized so that the rotating ball 2 rotates under the magnetic force of the target electromagnet and the magnet 4. The target rotation angle can be set in advance or obtained after calculation and processing based on the target image on the imaging surface 300, and the disclosed embodiment does not specifically limit this. In order to enable the controller to determine the target electromagnet more accurately and reduce the calculation complexity and amount of the controller, the center of gravity of the rotating ball 2 and the magnet 4 can be the same, and the center of gravity of the lens 3, the magnet 4 and the rotating ball 2 can be located at the center point of the rotating ball 2.

[0057] In some embodiments, the magnet 4 is a permanent magnet. When the magnet 4 is a permanent magnet, the magnet 4 is magnetic, and the magnet 4 is magnetically fixed on one side close to the inner wall of the spherical groove 11, and the magnet 4 does not need to be electrically connected to the controller.

[0058] In some embodiments, such as Figure 1 As shown, the magnet 4 includes an iron core and a coil sleeved on the iron core. The iron core is located at the center of the rotating ball 2, and the axis of the iron core is perpendicular to the lens 3.

[0059] In the disclosed embodiment, each first electromagnet 5 may also include an iron core and a coil sleeved on the outside of the iron core, and in order to save the internal space of the spherical groove 11, the ends of the multiple first electromagnets 5 away from the rotating ball 2 may be buried in the base 1. When the magnet 4 and the first electromagnet 5 are energized, in order to generate an adsorption force between the magnet 4 and the first electromagnet 5, the polarities of the two ends of the magnet 4 and the first electromagnet 5 that are close to each other are opposite. Specifically, the polarities of the two ends of the magnet 4 and the multiple first electromagnets 5 can be controlled by the direction of the current in the magnet 4 and the multiple first electromagnets 5. For example, the lower end of the magnet 4 can be an S pole, and the upper end of the first electromagnet 5 can be an N pole; or the lower end of the magnet 4 can be an N pole, and the upper end of the first electromagnet 5 can be an S pole.

[0060] In the imager 100 provided by the embodiment of the present disclosure, the controller can control the target electromagnet among the multiple first electromagnets 5 to be energized, so that the target electromagnet generates a magnetic field, and the magnetic pole of the magnetic field on the side of the magnet 4 away from the lens 3 is opposite to the polarity of the magnetic pole of the magnetic field on the side of the target electromagnet close to the rotating ball 2. Based on this, the magnet 4 moves toward the target electromagnet generating the magnetic field under the action of the adsorption force generated by the magnetic field, thereby driving the rotating ball 2 to rotate in the spherical groove 11, and then the lens 3 fixedly connected to the rotating ball 2 rotates, so as to adjust the light 200 incident on the surface of the lens 3, and the light 200 is reflected by the lens 3 and mapped to the imaging surface 300 to achieve imaging. Among them, since a part of the rotating ball 2 is placed in the spherical groove 11, when the rotating ball 2 rotates relative to the spherical groove 11 under the action of the magnetic field, the base 1 can support and limit the rotating ball 2, thereby improving the stability of the imager 100.

[0061] In addition, since a portion of the rotating ball 2 is located in the spherical groove 11, the overall structure of the imager 100 is relatively closed, reducing the interference of dust particles and the like on the imager 100, so that the imager 100 can be applied in more environments.

[0062] In some embodiments, such as Figure 3 As shown, the outer surface of the rotating ball 2 has at least two conductive areas 21 , an insulating area 22 is provided between the at least two conductive areas 21 , and the magnet 4 is electrically connected to the controller via the at least two conductive areas 21 .

[0063] In the present disclosure, Figure 1 As shown, when the magnet 4 is an electromagnet, the positive and negative poles of the magnet 4 are respectively connected to a conductive area 21 through a wire, and then connected to a power supply and a controller located outside the rotating ball 2 through the two conductive areas 21. Among them, the insulating area 22 is used to separate the two conductive areas 21 to prevent a short circuit between the positive and negative poles of the magnet 4. Forming two conductive areas 21 on the rotating ball 2 means using conductive materials at the two conductive areas 21 on the rotating ball 2. Forming an insulating area 22 between the two conductive areas 21 means using insulating materials to make the other parts of the rotating ball 2 except the two conductive areas 21. Among them, the embodiment of the present disclosure does not specifically limit the shape and area of ​​the two conductive areas 21. In an example, as Figure 3 As shown, the two conductive areas 21 are circular in shape.

[0064] In some embodiments, the imager 100 further includes at least two conductive structures 7, each conductive structure 7 including: a conductive ball 71, the conductive ball 71 contacts a conductive area 21; a conductive rod 72, one end of the conductive rod 72 is fixedly connected to the base 1, and the other end is connected to the conductive ball 71, the conductive ball 71 can rotate around the axis of the conductive rod 72, and the conductive rod 72 is electrically connected to the controller.

[0065] In the disclosed embodiment, when the magnet 4 is an electromagnet and the imager 100 includes two conductive structures 7, the two conductive structures 7 are respectively connected to the positive and negative electrodes of the magnet 4 through the two conductive areas 21, and the two conductive structures 7 are also connected to an external power supply and a controller, so that the magnet 4 is connected to the external power supply and the controller. Among them, a wire circuit can be set in the base 1, and one end of the conductive rod 72 can be inserted and fixed on the base 1 to connect with the wire circuit in the base 1, so as to connect to an external power supply or a controller. A conductive ball 71 contacts a conductive area 21, and the conductive ball 71 can rotate around the axis of the conductive rod 72, so that the conductive ball 71 will not cause resistance to the rotating ball 2 when the rotating ball 2 rotates.

[0066] In addition, the conductive ball 71 is fixed in the height direction, so when the rotating ball 2 rotates, the contact position of the conductive ball 71 with the rotating ball 2 changes. In order to enable the magnet 4 to connect to the external power supply and the controller through the conductive ball 71, the moving range of the conductive ball 71 needs to be within the conductive area 21 in contact with it. Based on this, in order to make the rotating ball 2 have a larger rotation angle range, the area of ​​the conductive area 21 in contact with the conductive ball 71 can be increased accordingly.

[0067] Since the conductive ball 71 is fixed in the height direction, at least two support structures 7 can also be used together to support the rotating ball 2, thereby further improving the stability of the imager 100. In addition, in the height direction, the center of the conductive ball 71 in each support structure 7 can be higher than the center of the rotating ball 2, so as to limit the rotating ball 2 and prevent the rotating ball 2 from moving in the direction away from the spherical groove 11.

[0068] In the disclosed embodiment, the magnet 4 may also be directly electrically connected to the controller through the two conductive areas 21 and the wires outside the rotating ball 2 .

[0069] In some embodiments, the imager 100 includes four conductive structures 7, which are fixed on the base 1 and evenly arranged around the notch of the spherical groove 11;

[0070] The outer surface of the rotating ball 2 has four conductive areas 21 , and an insulating area 22 is provided between every two adjacent conductive areas 21 . The conductive ball 71 of each conductive structure 7 contacts one conductive area 21 .

[0071] In the present disclosure, Figure 2 As shown, four conductive structures 7 are evenly distributed around the notch of the spherical groove 11, and the four conductive structures 7 jointly support the rotating ball 2, and each conductive structure 7 is subjected to substantially the same force, further increasing the stability of the rotating ball 2. The number of conductive structures 7 included in the imager 100 can also be set according to actual conditions, such as six, eight, etc., and the embodiment of the present disclosure does not specifically limit this.

[0072] In some embodiments, the imager 100 also includes at least one insulating ball 8, which is located between the rotating ball 2 and the inner wall of the spherical groove 11, and the diameter of the insulating ball 8 is greater than the distance between the side of the first electromagnet 5 close to the rotating ball 2 and the inner wall of the spherical groove 11.

[0073] In the disclosed embodiment, at least one insulating ball 8 is located between the inner wall of the spherical groove 11 and the outer surface of the rotating ball 2, and the insulating ball 8 contacts the area of ​​the inner wall of the spherical groove 11 that does not have the first electromagnet 5. The diameter of the insulating ball 8 is greater than the thickness of the portion of each first electromagnet 5 located in the spherical groove 11, so that the insulating ball 8 can support the rotating ball 2, prevent the rotating ball 2 from contacting the multiple first electromagnets 5 and prevent the rotating ball 2 from squeezing the multiple first electromagnets 5. In addition, at least one insulating ball 8 is also used to assist the rotating ball 2 in rotating. When the rotating ball 2 rotates relative to the spherical groove 11, at least one insulating ball 8 also rotates to lubricate the rotating ball 2 and the inner wall of the spherical groove 11.

[0074] In addition, in order to enable the at least one insulating ball 8 to better assist the rotating ball 2 in rotating, the outer surface of the at least one insulating ball 8 can be set to a smooth structure. The number of the at least one insulating ball 8 can be determined according to actual needs, such as two or three, and the embodiment of the present disclosure does not specifically limit this.

[0075] In some embodiments, the imager 100 further includes an organic film layer, which covers the inner wall of the spherical groove 11 except for the plurality of first electromagnets 5, and the thickness of the organic film layer is equal to the distance between the inner wall and the side of the plurality of first electromagnets 5 close to the rotating ball 2. The organic film layer fills the gaps between the plurality of first electromagnets 5, making the inner wall of the spherical groove 11 smoother and reducing the resistance encountered by the rotating ball 2 during rotation. The material of the organic film layer includes, but is not limited to, polyimide, polyethylene, and the like.

[0076] The embodiment of the present disclosure further provides an imaging system, which includes a plurality of the above-mentioned imagers 100 . The imaging system also includes a control unit, which is connected to the controllers of the plurality of imagers 100 .

[0077] In the present disclosure, Figure 4As shown, multiple imagers 100 can be arranged in an array, and the controllers of the multiple imagers 100 are respectively connected to the control unit of the imaging system through wires 400, so that the control unit can control the multiple imagers 100 through the controllers, so that the lenses 3 of the multiple imagers 100 can present different angles, and the light 200 reflected by the multiple lenses 3 is projected onto the imaging surface 300 to achieve imaging together, thereby improving the refresh rate of the imaging surface 300. Among them, the imaging system can be applied to technical fields such as 3D imaging, laser micro-projection, digital cinema, and laser radar.

[0078] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" 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, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0079] The above description is only a preferred embodiment of the present disclosure and is not intended to limit the protection scope of the present disclosure. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present disclosure are included in the protection scope of the present disclosure.

Claims

1. An imaging system, characterized in that: The imaging system comprises a plurality of imagers, and the plurality of imagers are arranged in an array; the imaging system further comprises a control unit, and the control unit is connected to the controllers of the plurality of imagers; The imager comprises: A base, wherein a spherical groove is formed on the base; A rotating ball, a portion of which is placed in the spherical groove, and a receiving cavity is provided in the rotating ball; A lens, wherein the lens is fixed on the rotating ball and is located outside the spherical groove; A magnet, wherein the magnet is fixed in the accommodating cavity; A plurality of first electromagnets, wherein the plurality of first electromagnets are distributed on the inner wall of the spherical groove; A controller, the controller being configured to control any one or more first electromagnets to generate a magnetic force that attracts the magnetic poles of the magnet, so as to drive the rotating ball to rotate through the magnetic force; At least two conductive structures, each conductive structure includes a conductive ball, and the conductive ball contacts a conductive area located on the outer surface of the rotating ball.

2. The imaging system according to claim 1, characterized in that The magnet is an electromagnet.

3. The imaging system according to claim 2, characterized in that The magnet comprises an iron core and a coil sleeved on the iron core. The iron core is located at the center of the rotating ball, and the axis of the iron core is perpendicular to the lens.

4. The imaging system according to claim 2, characterized in that: The outer surface of the rotating ball has at least two conductive areas, an insulating area is provided between the at least two conductive areas, and the magnet is electrically connected to the controller through the at least two conductive areas.

5. The imaging system according to claim 4, characterized in that: Each of the conductive structures further comprises: A conductive rod, one end of which is fixedly connected to the base, and the other end of which is connected to the conductive ball. The conductive ball can rotate around the axis of the conductive rod, and the conductive rod is electrically connected to the controller.

6. The imaging system according to claim 5, characterized in that: The imager comprises four conductive structures, which are fixed on the base and evenly arranged around the notch of the spherical groove; The outer surface of the rotating ball has four conductive areas, each of which has the insulating area between two adjacent conductive areas, and each conductive ball of the conductive structure is in contact with one conductive area.

7. The imaging system according to claim 1, characterized in that: The imager also includes at least one insulating ball, which is located between the rotating ball and the inner wall of the spherical groove, and the diameter of the insulating ball is greater than the distance between the side of the multiple first electromagnets close to the rotating ball and the inner wall of the spherical groove.

8. The imaging system according to claim 1, characterized in that: The imager also includes an organic film layer, which covers other areas of the inner wall of the spherical groove except the multiple first electromagnets, and the thickness of the organic film layer is equal to the distance between the side of the multiple first electromagnets close to the rotating ball and the inner wall of the spherical groove.

9. The imaging system according to claim 1, characterized in that: The imager also includes: A support rod, wherein the support rod is located outside the spherical groove, one end of the support rod is fixedly connected to the rotating ball, and the other end of the support rod is fixedly connected to the center of the lens; or The plane shape of the lens is circular.

Images