Two-shaft rotary motor architecture for improving optical quality

Abstract

The utility model relates to a two-shaft rotating motor framework for improving optical quality. The two-shaft rotating motor framework comprises a base, a first prism support, a first driving part, a second prism support and a second driving part, the first prism support is matched with the first fulcrum element through the first supporting groove so that the first prism can be rapidly installed and positioned, and meanwhile the rotation precision and stability of the first prism support are guaranteed. Through the arrangement of the first plane, the installation distance between the first plane and the third magnet is closer, so that the stronger suction force between the first fulcrum element and the third magnet is ensured, and the degree of freedom of the prism in the non-required movement direction is favorably limited; furthermore, the space occupation of the prism module formed by the first prism support and the second prism support in the Y direction can be reduced, and miniaturization of the voice coil motor is facilitated.

Description

Technical Field

[0001] The utility model relates to the field of optical imaging, and in particular to a two-axis rotary motor structure for improving optical quality. Background Art

[0002] The periscope lens structure usually includes two parts, namely the lens part and the prism part, wherein the prism part is arranged at the front end of the periscope part, and the imaging chip is arranged at the rear end of the lens part. The light is reflected by the prism part and enters the lens part.

[0003] The camera functions of existing electronic devices are becoming more and more powerful. Conventional camera lenses can only capture close-up images (1 to 2 meters). To clearly capture distant scenes (10 to 20 meters), the lens must have a telephoto or zoom function. However, such lenses often require a long travel to achieve zoom, resulting in a relatively long total lens length. The lens height exceeds the thickness of the electronic device, making it difficult to meet the requirements of lightweight or thin mobile terminal devices. To this end, the following are usually adopted: Figure 1 The periscope design shown here lies flat on the optical path and adds a prism to rotate the optical path 90 degrees. At this time, the prism bracket on the mechanism needs to be fine-tuned at small angles of θx and θy to perform OIS hand shake compensation, allowing the entire optical system to lie flat to reduce the overall height, and cooperate with the focus motor to complete the Z-axis focus or zoom.

[0004] However, the traditional periscope optical system will produce eccentricity in the zero field of view spot position during the anti-shake process, resulting in a decrease in resolution. In 2020, Huawei proposed a new optical system (CN115917401A) that changed θy to θz, such as Figure 2 , which can effectively improve the quality of optical imaging, and the design of the optical machine also needs to be changed accordingly. Utility Model Content

[0005] In order to solve the above problems in the prior art, the present invention provides a two-axis rotary motor structure with improved optical quality.

[0006] In order to achieve the above-mentioned purpose, the main technical solutions adopted by this utility model include:

[0007] A two-axis rotary motor architecture with improved optical quality, comprising:

[0008] base;

[0009] a first prism bracket, configured to be fixedly connected to a prism, wherein the prism is configured to adjust light incident along the second direction to be transmitted along a third direction, the third direction being perpendicular to the second direction;

[0010] a first driving unit, configured to drive the first prism bracket to rotate relative to the base around a first direction, wherein the first direction is perpendicular to the second direction and perpendicular to the third direction;

[0011] A second prism bracket, used to support the first prism bracket;

[0012] a second driving unit, configured to drive the second prism bracket to rotate relative to the base around the third direction;

[0013] The first prism bracket is provided with a first supporting groove; the second prism bracket is provided with a first fulcrum element, the first fulcrum element including a first arc surface; the first prism bracket abuts against the first arc surface through the inner wall of the first supporting groove; when the first driving unit drives the first prism bracket, the first supporting groove rotates around the first direction;

[0014] The base is provided with a second supporting groove; the second prism bracket is provided with a second fulcrum element, and the second fulcrum element includes a second curved surface; the second prism bracket abuts against the inner wall of the second supporting groove through the second curved surface; when the second driving part drives the second prism bracket, the second fulcrum element rotates around a third direction in the second supporting groove.

[0015] Furthermore, the first supporting groove is a V-shaped groove or an arc-shaped groove; the second supporting groove is a V-shaped groove or an arc-shaped groove.

[0016] Furthermore, two first supporting grooves are provided; the notches of the first supporting grooves are provided downward;

[0017] The first prism bracket includes a first side wall and a second side wall opposite to each other in the first direction, and the second prism bracket includes a first supporting portion and a second supporting portion opposite to each other in the first direction, the first supporting portion is located on a side of the first side wall away from the second side wall, and the second supporting portion is located on a side of the second side wall away from the first side wall;

[0018] One of the two first supporting grooves is provided on a side of the first side wall facing the first supporting portion, and the first supporting portion is provided with the first fulcrum element on a side facing the first side wall, and the first supporting groove on the first side wall abuts against the first fulcrum element on the first supporting portion;

[0019] The other of the two first supporting grooves is provided on the side of the second side wall facing the second supporting portion, and the first fulcrum element is provided on the side of the second supporting portion facing the second side wall. The first supporting groove on the second side wall bears against the first fulcrum element on the second supporting portion.

[0020] Furthermore, a protrusion is formed on a side of the first side wall facing the first supporting portion, and a first supporting groove is formed on the protrusion;

[0021] Another protrusion is formed on a side of the second side wall facing the second supporting portion, and the other of the two first supporting grooves is formed on the protrusion.

[0022] Furthermore, a third magnet is fixedly provided on the top of the first supporting groove; and the first fulcrum element is made of magnetic conductive metal.

[0023] Furthermore, the length direction of the second support groove is parallel to the third direction; the length direction of the second fulcrum element is parallel to the third direction; the notch of the second support groove is set upward; a fourth magnet is fixed to the bottom of the second support groove; and the second fulcrum element is a magnetic metal.

[0024] Furthermore, the first driving unit includes a first coil and a first magnet arranged opposite to each other in the third direction; the first coil is arranged on the base; and the first magnet is arranged on the first prism bracket.

[0025] Furthermore, the second driving part includes a second coil and a second magnet arranged opposite to each other in the first direction; the second coil is arranged on the base; and the second magnet is arranged on the second prism bracket.

[0026] Furthermore, the second prism bracket is embedded with a magnetic metal frame to form a first fulcrum element and a second fulcrum element.

[0027] Furthermore, the top of the first fulcrum element is set as a first plane, and a first arc surface is connected to each side of the first plane, and the axes of the two first arc surfaces are coaxial; the bottom of the second fulcrum element is set as a second plane, and a second arc surface is connected to each side of the second plane, and the axes of the two second arc surfaces are coaxial.

[0028] The beneficial effects of the present invention are as follows: the first prism holder cooperates with the first fulcrum element through the first supporting groove to achieve rapid installation and positioning of the first prism, while ensuring the rotation accuracy and stability of the first prism holder and improving the optical quality; the second prism holder cooperates with the second supporting groove to achieve rapid installation and positioning of the second prism holder, while ensuring the rotation accuracy and stability of the second prism holder; the provision of the first plane enables the first plane and the third magnet to have a closer installation distance, thereby ensuring a stronger suction force between the first fulcrum element and the third magnet, which is beneficial to limiting the degree of freedom of the prism in non-required movement directions, and further reduces the space occupied by the prism module formed by the first prism holder and the second prism holder in the Y direction, which is beneficial to the miniaturization of the voice coil motor; the provision of the second plane enables the second plane and the fourth magnet to have a closer installation distance, thereby ensuring a stronger suction force between the second fulcrum element and the fourth magnet, which is beneficial to limiting the degree of freedom of the prism in non-required movement directions, and further reduces the space occupied by the second prism holder in the Y direction, which is beneficial to the miniaturization of the voice coil motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0030] Figure 1 This is a schematic diagram of the optical path of a prism module in the prior art;

[0031] Figure 2 This is a schematic diagram of the improved optical path of the prism module;

[0032] Figure 3 This utility model has a structural explosion Figure 1 ;

[0033] Figure 4 This utility model has a structural explosion Figure 2 ;

[0034] Figure 5 This is a top view of the structure of the utility model;

[0035] Figure 6 This is the AA cross-sectional view of the utility model;

[0036] Figure 7 This is a BB cross-sectional view of the utility model;

[0037] Figure 8This is a schematic diagram of the structure of the magnetic conductive metal frame of the utility model;

[0038] Description of reference numerals:

[0039] 100. Base; 101. Accommodating space; 110. Second supporting groove; 120. Fourth magnet; 130. Top cover; 131. Light inlet; 200. First prism bracket; 201. First side wall; 202. Second side wall; 203. Protrusion; 210. Prism; 220. First supporting groove; 230. Third magnet; 300. First driving part; 310. First coil; 320. First magnet; 400. Second prism bracket; 401. First supporting part; 402. Second supporting part; 410. First fulcrum element; 411. First arc surface; 412. First plane; 420. Second fulcrum element; 421. Second arc surface; 422. Second plane; 430. Magnetic metal frame; 500. Second driving part; 510. Second coil; 520. Second magnet; 600. Lens module. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the utility model for which protection is sought, but merely represents the selected embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0041] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," "the other end," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0042] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "connected," etc., should be understood in a broad sense. For example, "connected" may refer to a fixed connection, a detachable connection, or an integral connection; it may refer to a mechanical connection or an electrical connection; it may refer to a direct connection or an indirect connection through an intermediate medium; it may refer to internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model in specific circumstances.

[0043] Example:

[0044] like Figure 3-4 As shown, the first direction is parallel to the X direction, the second direction is parallel to the Y direction, and the third direction is parallel to the Z direction; for the convenience of description, the first direction may also be referred to as the X direction, the second direction may also be referred to as the Y direction, and the third direction may also be referred to as the Z direction;

[0045] A two-axis rotary motor structure for improving optical quality includes a base 100, a first prism bracket 200, a first driving unit 300, a second prism bracket 400, and a second driving unit 500; the base 100 is formed with a accommodating space 101 for placing the first prism bracket 200 and the second prism bracket 400 and operating the first prism bracket 200 and the second prism bracket 400; the first prism bracket 200 is fixedly connected to a prism 210; the prism 210 is used to adjust the light incident along the Y direction to Transmitted along the Z direction; the Z direction is also commonly referred to as the optical axis direction; the first driving unit 300 is used to drive the first prism holder 200 to rotate about the X direction; the second driving unit 500 is used to drive the second prism holder 400 to rotate about the Z direction; the first prism holder 200 is disposed on the second prism holder 400, so when the second prism holder 400 rotates about the Z direction, it can also drive the first prism holder 200 to rotate about the Z direction, that is, the first prism holder 200 can complete the rotation in the X and Z directions;

[0046] The first driving unit 300 includes a first coil 310 and a first magnet 320 arranged opposite to each other in the Z direction; the first coil 310 is arranged on the base 100; the first magnet 320 is arranged on the first prism bracket 200;

[0047] The second driving unit 500 includes a second coil 510 and a second magnet 520 disposed opposite to each other in the X direction; the second coil 510 is disposed on the base 100; the second magnet 520 is disposed on the second prism holder 400; two second driving units 500 are usually disposed opposite to each other;

[0048] The first prism bracket 200 is provided with a first supporting groove 220; the second prism bracket 400 is provided with a first fulcrum element 410, and the first fulcrum element 410 includes a first curved surface 411; the first prism bracket 200 abuts against the first curved surface 411 through the inner wall of the first supporting groove 220; when the first driving part 300 drives the first prism bracket 200, the first supporting groove 220 rotates around the first direction; there are two first supporting grooves 220; the notch of the first supporting groove 220 is set downward; the first prism bracket 200 includes a first side wall 201 and a second side wall 202 arranged opposite to each other in the X direction, and the second prism bracket 400 includes a first supporting portion 401 and a second supporting portion 402 arranged opposite to each other in the X direction, the first supporting portion 401 is located on the side of the first side wall 201 away from the second side wall 202, and the second supporting portion 402 is located on the side of the second side wall 202 away from the first side wall 201; the first side wall 201 is facing One of the two first supporting grooves 220 is provided on one side of the first supporting portion 401, and the first fulcrum element 410 is provided on the side of the first supporting portion 401 facing the first side wall 201, and the first supporting groove 220 on the first side wall 201 abuts against the first fulcrum element 410 on the first supporting portion 401; the other of the two first supporting grooves 220 is provided on the side of the second side wall 202 facing the second supporting portion 402, and the first fulcrum element 410 is provided on the side of the second supporting portion 402 facing the second side wall 202, and the first supporting groove 220 on the second side wall 202 abuts against the first fulcrum element 410 on the second supporting portion 402; in one embodiment, the first supporting groove 220 is a V-shaped groove or an arc-shaped groove; the second supporting groove 110 is a V-shaped groove or an arc-shaped groove; the first prism bracket 200 can achieve rapid installation and positioning of the first prism 210 through the cooperation of the first supporting groove 220 and the first fulcrum element 410;

[0049] In one embodiment, the base 100 is provided with a second supporting groove 110; the second prism bracket 400 is provided with a second fulcrum element 420, and the second fulcrum element 420 includes a second curved surface 421; the second prism bracket 400 abuts against the inner wall of the second supporting groove 110 through the second curved surface 421; when the second driving part 500 drives the second prism bracket 400, the second fulcrum element 420 rotates around the Z direction in the second supporting groove 110; the length direction of the second supporting groove 110 is parallel to the Z direction; the length direction of the second fulcrum element 420 is parallel to the Z direction; the notch of the second supporting groove 110 is set upward.

[0050] In one embodiment, a protrusion 203 is formed on the side of the first side wall 201 facing the first supporting portion 401, and a first supporting groove 220 is formed on the protrusion 203; another protrusion 203 is formed on the side of the second side wall 202 facing the second supporting portion 402, and the other of the two first supporting grooves 220 is formed on the protrusion 203; the first supporting portion 401 and the second supporting portion 402 are respectively provided with a groove that cooperates with the protrusion 203. The cooperation between the protrusion 203 and the groove can limit the rotatable angle of the first prism holder 200, and it is also more convenient to observe the installation position during installation;

[0051] Generally, shaking will move the electronic device in six degrees of freedom, including three translational degrees of freedom and three rotational degrees of freedom. Specifically, the three translational degrees of freedom include movement along the X-axis, movement along the Y-axis, and movement along the Z-axis. The three rotational degrees of freedom include rotation around the X-axis, rotation around the Y-axis, and rotation around the Z-axis. The rotation of the prism 210 around the X-axis and the rotation around the Z-axis can be understood as the degrees of freedom in the required movement direction;

[0052] In existing periscope camera modules, due to limitations in the voice coil motor's structural design, when the voice coil motor drives the prism 210 to rotate about the X-axis and Z-axis for shake compensation, the prism 210 also has degrees of freedom in undesired motion directions, such as at least one of movement along the X-axis, movement along the Y-axis, movement along the Z-axis, and rotation about the Y-axis. As a result, the voice coil motor's shake compensation process is disrupted by these degrees of freedom in undesired motion directions, resulting in poor anti-shake performance, which in turn affects the image quality and leads to unsatisfactory photography results.

[0053] Therefore, in the embodiment of the present application, by limiting the degree of freedom of the prism 210 in non-required movement directions, the anti-interference capability of the voice coil motor is improved, thereby enhancing the optical image stabilization effect and improving the imaging quality;

[0054] In one embodiment, a third magnet 230 is fixedly provided at the top of the first supporting groove 220; the first fulcrum element 410 is made of a magnetically conductive metal. The attraction between the third magnet 230 and the first fulcrum element 410 effectively restricts the freedom of the first prism holder 200 in non-desired movement directions, so that the first prism holder 200 can only rotate about the X direction.

[0055] In one embodiment, a fourth magnet 120 is fixedly provided at the bottom of the second supporting groove 110; the second fulcrum element 420 is made of a magnetically conductive metal. The attraction between the fourth magnet 120 and the second fulcrum element 420 effectively limits the freedom of the second prism holder 400 in non-desired movement directions, so that the second prism holder 400 can only rotate in the Z direction.

[0056] In one embodiment, the first fulcrum element 410 may be a cylinder or a semi-cylinder, so that the first arc surface 411 is a continuous arc surface; the second fulcrum element 420 may also be a cylinder or a semi-cylinder, so that the second arc surface 421 is a continuous arc surface;

[0057] In one embodiment, if Figure 5-7 As shown, the top of the first fulcrum element 410 is set as a first plane 412, and a first arc surface 411 is connected to each side of the first plane 412. The axes of the two first arc surfaces 411 are coaxial. It can be understood that the first fulcrum element 410 in this embodiment is formed by milling a semi-cylinder with the top removed to form the first plane 412; the provision of the first plane 412 can make the first plane 412 and the third magnet 230 have a closer installation distance, thereby ensuring a stronger suction force between the first fulcrum element 410 and the third magnet 230, which is conducive to limiting the freedom of the prism 210 in non-required movement directions and improving optical quality; further, it can also reduce the space occupied by the prism 210 module composed of the first prism bracket 200 and the second prism bracket 400 in the Y direction, which is conducive to the miniaturization of the voice coil motor;

[0058] Similarly, the bottom of the second fulcrum element 420 is configured as a second plane 422. A second arc surface 421 is connected to each side of the second plane 422. The axes of the two second arc surfaces 421 are coaxial. It can be understood that the second fulcrum element 420 in this embodiment is formed by milling a semi-cylinder with the bottom removed to form the second plane 422. The provision of the second plane 422 allows the second plane 422 to be installed closer to the fourth magnet 120, thereby ensuring a stronger suction force between the second fulcrum element 420 and the fourth magnet 120, which is beneficial for limiting the freedom of the prism 210 in non-desired movement directions and improving optical quality. Furthermore, it can also reduce the space occupied by the second prism bracket 400 in the Y direction, which is beneficial for miniaturization of the voice coil motor.

[0059] In one embodiment, if Figure 8 As shown, the second prism bracket 400 is embedded with a magnetic metal frame 430 to form a first fulcrum element 410 and a second fulcrum element 420. The magnetic metal frame 430 is used to set the first fulcrum element 410 and the second fulcrum element 420 on a single component, which can more effectively ensure the coaxiality between the two first fulcrum elements 410 and the positional relationship between the first fulcrum element 410 and the second fulcrum element 420, thereby improving the accuracy.

[0060] In one embodiment, when the two-axis rotary motor structure for improving optical quality is used in a periscope camera module, a lens module 600 is also provided in the accommodating space 101 of the base 100; a top cover 130 is provided on the top of the base 100 to form a complete periscope camera module; a light inlet 131 opposite to the prism 210 is provided on the top cover 130, and light enters the prism 210 through the light inlet 131, is reflected by the prism 210, and then enters the lens module 600 along the Z direction.

[0061] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent transformations made using the contents of the description and drawings of the present invention, or directly or indirectly applied in the relevant technical field, are also included in the patent protection scope of the present invention.

Claims

1. A two-axis rotary motor architecture for improving optical quality, characterized in that: include: Base (100); a first prism bracket (200) for fixedly connecting to a prism (210), wherein the prism (210) is used to adjust light incident along a second direction to be transmitted along a third direction, the third direction being perpendicular to the second direction; a first driving unit (300) for driving the first prism bracket (200) to rotate relative to the base (100) about a first direction, the first direction being perpendicular to the second direction and perpendicular to the third direction; A second prism support (400), used for supporting the first prism support (200); a second driving unit (500) for driving the second prism bracket (400) to rotate relative to the base (100) around the third direction; The first prism bracket (200) is provided with a first supporting groove (220); the second prism bracket (400) is provided with a first fulcrum element (410), and the first fulcrum element (410) includes a first arc surface (411); the first prism bracket (200) abuts against the first arc surface (411) through the inner wall of the first supporting groove (220); when the first driving part (300) drives the first prism bracket (200), the first supporting groove (220) rotates around the first direction; The base (100) is provided with a second supporting groove (110); the second prism bracket (400) is provided with a second fulcrum element (420), and the second fulcrum element (420) includes a second arc surface (421); the second prism bracket (400) abuts against the inner wall of the second supporting groove (110) through the second arc surface (421); when the second driving part (500) drives the second prism bracket (400), the second fulcrum element (420) rotates around a third direction in the second supporting groove (110).

2. The dual-axis rotary motor architecture for improving optical quality according to claim 1, wherein: The first supporting groove (220) is a V-shaped groove or an arc-shaped groove; the second supporting groove (110) is a V-shaped groove or an arc-shaped groove.

3. The dual-axis rotary motor architecture for improving optical quality according to claim 1, wherein: Two first supporting grooves (220) are provided; the notches of the first supporting grooves (220) are provided downward; The first prism bracket (200) comprises a first side wall (201) and a second side wall (202) arranged opposite to each other in the first direction; the second prism bracket (400) comprises a first supporting portion (401) and a second supporting portion (402) arranged opposite to each other in the first direction; the first supporting portion (401) is located on a side of the first side wall (201) away from the second side wall (202); and the second supporting portion (402) is located on a side of the second side wall (202) away from the first side wall (201); One of the two first supporting grooves (220) is provided on a side of the first side wall (201) facing the first supporting portion (401), and the first supporting portion (401) is provided with a first fulcrum element (410) on a side of the first side wall (201), and the first supporting groove (220) on the first side wall (201) abuts against the first fulcrum element (410) on the first supporting portion (401); The other of the two first supporting grooves (220) is provided on the side of the second side wall (202) facing the second supporting portion (402), and the first fulcrum element (410) is provided on the side of the second supporting portion (402) facing the second side wall (202), and the first supporting groove (220) on the second side wall (202) bears against the first fulcrum element (410) on the second supporting portion (402).

4. The dual-axis rotary motor architecture for improving optical quality according to claim 3, wherein: A protrusion (203) is formed on one side of the first side wall (201) facing the first supporting portion (401), and a first supporting groove (220) is formed on the protrusion (203); Another protrusion (203) is formed on one side of the second side wall (202) facing the second supporting portion (402), and the other of the two first supporting grooves (220) is formed on the protrusion (203).

5. The dual-axis rotary motor architecture for improving optical quality according to claim 3 or 4, characterized in that: A third magnet (230) is fixedly provided on the top of the first supporting groove (220); and the first fulcrum element (410) is made of magnetic conductive metal.

6. The dual-axis rotary motor architecture for improving optical quality according to claim 2, wherein: The length direction of the second supporting groove (110) is parallel to the third direction; the length direction of the second fulcrum element (420) is parallel to the third direction; the notch of the second supporting groove (110) is arranged upward; a fourth magnet (120) is fixedly provided at the bottom of the second supporting groove (110); and the second fulcrum element (420) is a magnetic conductive metal.

7. The dual-axis rotary motor architecture for improving optical quality according to claim 1, wherein: The first driving unit (300) comprises a first coil (310) and a first magnet (320) arranged relative to each other in a third direction; the first coil (310) is arranged on a base (100); and the first magnet (320) is arranged on a first prism bracket (200).

8. The dual-axis rotary motor architecture for improving optical quality according to claim 1, wherein: The second driving unit (500) comprises a second coil (510) and a second magnet (520) arranged opposite to each other in a first direction; the second coil (510) is arranged on the base (100); and the second magnet (520) is arranged on the second prism bracket (400).

9. The dual-axis rotary motor architecture for improving optical quality according to claim 1, wherein: The second prism bracket (400) is embedded with a magnetic conductive metal frame (430) to form a first supporting point element (410) and a second supporting point element (420).

10. The dual-axis rotary motor architecture for improving optical quality according to claim 1, wherein: The top of the first fulcrum element (410) is set as a first plane (412), and the two sides of the first plane (412) are respectively connected to a first arc surface (411), and the axes of the two first arc surfaces (411) are coaxial; the bottom of the second fulcrum element (420) is set as a second plane (422), and the two sides of the second plane (422) are respectively connected to a second arc surface (421), and the axes of the two second arc surfaces (421) are coaxial.

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