Optical element driving mechanism

Abstract

The present disclosure provides an optical element driving mechanism. The optical element driving mechanism includes a fixed part, a first movable part, a second movable part, a first driving assembly, a second driving assembly, and a connecting element. The first movable part is configured to move relative to the fixed part. The second movable part is configured to carry an optical element including a main shaft and move relative to the first movable part. The first driving assembly is configured to drive the first movable part to move relative to the fixed part in a first dimension. The second driving assembly is configured to drive the second movable part to move relative to the first movable part in a second dimension. The connecting element connects the first movable part and the second movable part.

Description

Technical Field

[0001] This disclosure relates to an optical element driving mechanism. Background Technology

[0002] With the development of technology, many electronic devices today (such as smartphones or digital cameras) have the function of taking pictures or recording videos. The use of these electronic devices is becoming more and more common, and they are developing towards convenient and thinner designs to provide users with more choices.

[0003] The aforementioned electronic devices with photographic or video recording functions typically include an optical element driving mechanism to drive optical elements (such as a lens) to move along the optical axis, thereby achieving autofocus (AF) or optical image stabilization (OIS). Light can pass through the aforementioned optical elements and form an image on the photosensitive element. However, the current trend in mobile devices is to achieve smaller size and higher durability; therefore, effectively reducing the size of the optical element driving mechanism and improving its durability has become an important issue. Summary of the Invention

[0004] The purpose of this disclosure is to provide an optical element driving mechanism to solve at least one of the above-mentioned problems.

[0005] This disclosure provides an optical element driving mechanism, including a fixed portion, a first movable portion, a second movable portion, a first driving assembly, a second driving assembly, and a connecting element. The first movable portion is movable relative to the fixed portion. The second movable portion is used to carry an optical element including a spindle and is movable relative to the first movable portion. The first driving assembly drives the first movable portion to move relative to the fixed portion in a first dimension. The second driving assembly drives the second movable portion to move relative to the first movable portion in a second dimension. The connecting element connects the first movable portion and the second movable portion.

[0006] In some embodiments, the second drive assembly includes a transmission element disposed between the first movable portion and the second movable portion, for transmitting the second driving force generated by the second drive assembly to the second movable portion. The first dimension is different from the second dimension. The transmission element moves in a third dimension, which is different from both the first and second dimensions. The movement in the first dimension is a circular motion of the first movable portion relative to a first axis, which extends in a first direction. The movement in the second dimension is a rotational motion of the second movable portion relative to a second axis, which extends in a second direction. The first direction is different from the second direction. The second axis passes through the second movable portion. The main shaft is not parallel to the first direction. The main shaft is not parallel to the second direction. The optical element and the second movable portion are arranged on the main shaft.

[0007] In some embodiments, the second shaft is connected via a connecting element. The fixed portion includes a base, a first guide element is disposed on the base, and a second movable portion is movably connected to the base via the first guide element. The movable portion includes a support element for supporting an optical element. The support element includes a first groove and a second groove. The base includes a limiting portion, in which the first guide element is at least partially disposed. A greater than zero distance exists between the limiting portion and the support element. The support element has a first surface and a second surface. The first groove is located on the first surface of the support element. The second groove is located on the second surface of the support element. The first surface faces the base. The second surface faces the transmission element. The second surface faces the frame. The spindle passes through the first guide element.

[0008] In some embodiments, the first surface and the second surface face different directions. The first surface has a curved surface structure centered on a first axis. The first groove has an arcuate structure centered on the first axis. The second groove has an arcuate structure centered on the first axis. Viewed from a second direction, the first groove has a first radius of curvature. Viewed from a second direction, the second groove has a second radius of curvature. The first radius of curvature and the second radius of curvature are different.

[0009] In some embodiments, the support element further includes a support plane perpendicular to the main axis. When the support element moves relative to the first movable part in a second dimension, the support plane is always perpendicular to the main axis. The first movable part includes a frame. The frame includes a first side and a second side. A first guide groove and a second guide groove are formed on a first surface of the first side. A third guide groove is formed on a second surface of the second side. The first guide groove and the second guide groove extend in a third direction. The third direction is different from the first and second directions. The third guide groove has an arcuate structure centered on a second axis.

[0010] In some embodiments, the fixing part further includes a housing and a sidewall. A first movable part and a second movable part are disposed within the housing. The sidewall is disposed between the housing and the first movable part. In a first direction, the sidewall at least partially overlaps with the frame. The optical element driving mechanism further includes a second guiding element disposed in a third guide groove and a plurality of positioning elements disposed between the sidewall and the frame.

[0011] In some embodiments, the third direction is perpendicular to the first and second directions. A plurality of receiving portions are formed on the second side of the frame, and the sidewall has a plurality of positioning portions. In the first direction, the positioning portions at least partially overlap with the receiving portions. Positioning elements are at least partially disposed in the receiving portions and the positioning portions. The positioning elements have a spherical structure. The second guide element has a spherical structure. Viewed from the third direction, the second guide element is at least partially exposed outside the frame. Viewed from the third direction, the positioning elements are at least partially exposed outside the frame.

[0012] In some embodiments, the transmission element includes a third surface and a fourth surface. The third surface is opposite to the fourth surface. A fourth guide groove and a fifth guide groove are formed on the third surface. A sixth guide groove is formed on the fourth surface. The third surface of the transmission element faces the first surface of the frame. In a second direction, the second groove of the carrying element at least partially overlaps with the sixth guide groove of the transmission element. The second groove of the carrying element and the sixth guide groove of the transmission element have corresponding gear or rack structures. In the second direction, the fourth guide groove and the fifth guide groove of the transmission element at least partially overlap with the first guide groove and the second guide groove of the frame, respectively. Viewed from a third direction, the positioning element is at least partially exposed.

[0013] In some embodiments, the optical element driving mechanism further includes a stop element and a spacer. The stop element is disposed within the frame. The spacer is disposed between the connecting element and the frame. Viewed from a second direction, the stop element at least partially overlaps with the transmission element. Viewed from a third direction, the stop element at least partially overlaps with the transmission element. Viewed from a third direction, a first guide groove at least partially exposes the stop element. Viewed from a third direction, a fourth guide groove at least partially exposes the stop element. Viewed from a third direction, a second guide groove at least partially overlaps with the stop element. Viewed from a third direction, a fifth guide groove at least partially overlaps with the stop element.

[0014] In some embodiments, the optical element driving mechanism further includes a first circuit element, a second circuit element, a first reinforcing element, and a second reinforcing element, disposed on the fixing portion. In a first direction, the first circuit element at least partially overlaps with the frame. In a second direction, the first circuit element at least partially overlaps with the frame. In a first direction, the second circuit element at least partially overlaps with the frame. In a second direction, the first circuit element at least partially overlaps with the first reinforcing element. In a first direction, the second circuit element at least partially overlaps with the second reinforcing element.

[0015] The beneficial effects of this disclosure are that the special relative positions and size relationships of the components disclosed herein not only enable the optical system to achieve thinning in a specific direction and miniaturization of the whole, but also further improve the optical quality (such as shooting quality or depth sensing accuracy) by matching different optical modules, and further utilize each optical module to achieve a multi-stage anti-shake system to greatly improve the anti-shake effect. Attached Figure Description

[0016] Embodiments of this disclosure will now be described in detail with reference to the accompanying drawings. It should be noted that, in accordance with industry standard practice, many features are not shown to scale and are for illustrative purposes only. In fact, the dimensions of elements may be arbitrarily enlarged or reduced to clearly demonstrate the features of this disclosure.

[0017] Figure 1This is a schematic diagram of an optical element driving mechanism according to some embodiments of the present disclosure.

[0018] Figure 2 This is an exploded view of the optical element drive mechanism.

[0019] Figure 3 This is a top view of the optical element drive mechanism.

[0020] Figure 4A It is along Figure 3 The cross-sectional view shown by the center line segment AA.

[0021] Figure 4B It is along Figure 3 The cross-sectional view shown by the midline segment BB.

[0022] Figure 5 It is along Figure 3 The cross-sectional view shown by the center line segment CC.

[0023] Figure 6 , Figure 7 This is a schematic diagram of the frame viewed from different directions.

[0024] Figure 8 , Figure 9 This is a schematic diagram of the transmission element viewed from different directions.

[0025] Figure 10 This is a schematic diagram of the load-bearing element.

[0026] Figure 11 , Figure 12 This is a schematic diagram of some components of the optical element drive mechanism when viewed from different directions.

[0027] Figure 13 , Figure 14 This is a schematic diagram of other components of the optical element drive mechanism when viewed from different directions.

[0028] Figure 15 This is a schematic diagram of some components of the optical element drive mechanism.

[0029] Figure 16 This is a schematic diagram of the frame and transmission components.

[0030] The attached figures are labeled as follows:

[0031] 10: Shell

[0032] 12: Base

[0033] 14: Sidewall

[0034] 15: Positioning Section

[0035] 16: Stopping element

[0036] 20: Framework

[0037] 21A: First side

[0038] 21B: Second side

[0039] 22A: First surface

[0040] 22B: Second surface

[0041] 23: Connecting elements

[0042] 24A: First guide groove

[0043] 24B: Second guide groove

[0044] 25: Opening

[0045] 27: Third guide groove

[0046] 28,34: Groove

[0047] 29: Reception Department

[0048] 30: Transmission components

[0049] 31: Fourth guide groove

[0050] 32: Fifth guide groove

[0051] 33: Sixth guide groove

[0052] 35A: Third Surface

[0053] 35B: Fourth Surface

[0054] 40: Load-bearing element

[0055] 41: First Page

[0056] 42: Second page

[0057] 43: First Groove

[0058] 44: Second groove

[0059] 45: Connecting part

[0060] 46: Bearing plane

[0061] 52: First magnetic element

[0062] 54: Second magnetic element

[0063] 62: First coil

[0064] 64: Second coil

[0065] 72: First circuit element

[0066] 74: First Reinforcing Component

[0067] 76: Second circuit element

[0068] 78: Second reinforcing element

[0069] 82: First guiding element

[0070] 84: Second guiding element

[0071] 86: Positioning element

[0072] 90: Optical Components

[0073] 94: Gasket

[0074] 96, 98: Connecting elements

[0075] 100: Optical element drive mechanism

[0076] AX1: First axis

[0077] AX2: Second axis

[0078] AX3: Spindle

[0079] D1: First Drive Component

[0080] D2: Second drive component

[0081] F: Fixing part

[0082] M1: First Activities Department

[0083] M2: Second Activities Department

[0084] R1: First radius of curvature

[0085] R2: Second radius of curvature Detailed Implementation

[0086] The following discloses many different implementations or examples to carry out the different features provided. Specific embodiments of the elements and their arrangements are described below to illustrate this disclosure. Of course, these embodiments are merely illustrative and should not be construed as limiting the scope of this disclosure. For example, the specification mentions that a first feature is formed on a second feature. This may include embodiments where the first and second feature are in direct contact, or embodiments where there are other features between the first and second feature; in other words, the first and second feature are not in direct contact.

[0087] Furthermore, repeated reference numerals or designations may be used in different embodiments. These repetitions are merely for the purpose of clearly and simply describing this disclosure and do not represent a specific relationship between the different embodiments and / or structures discussed. Additionally, the formation, connection, and / or coupling to another feature component in this disclosure may include embodiments in which the feature components are formed in direct contact, and may also include embodiments in which additional feature components may be formed to insert into the aforementioned feature component, such that the aforementioned feature components may not be in direct contact. Furthermore, spatially related terms such as “vertical,” “above,” “up,” “below,” “bottom,” and similar terms (e.g., “downward,” “upward,” etc.) may be used to facilitate the description of the relationship between one element(s) or feature(s) in the illustrations and another element(s) or feature(s). These spatially related terms are intended to cover different orientations of the device including the feature.

[0088] Unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by those skilled in the art to which this disclosure pertains. It is understood that these terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning consistent with the relevant art and the background or context of this disclosure, and should not be interpreted in an idealized or overly formal manner, unless specifically defined herein.

[0089] Furthermore, the use of ordinal numbers such as "first" and "second" in the specification and claims to modify elements of the claims does not imply or represent any prior ordinal number for the claimed element, nor does it represent the order of one claimed element with another, or the order of manufacturing methods. The use of multiple ordinal numbers is only to enable a claimed element with a certain name to be clearly distinguished from another claimed element with the same name.

[0090] Furthermore, in some embodiments of this disclosure, terms such as "connection" and "interconnection," unless specifically defined, may refer to two structures in direct contact, or they may refer to two structures that are not in direct contact, with other structures disposed between them. Moreover, these terms regarding joining and connection may also include cases where both structures are movable or both structures are fixed.

[0091] Figure 1 This is a schematic diagram of an optical element driving mechanism 100 according to some embodiments of the present disclosure. Figure 2 This is an exploded view of the optical element drive mechanism 100. Figure 3 This is a top view of the optical element drive mechanism 100. Figure 4A It is along Figure 3 The cross-sectional view shown by the center line segment AA. Figure 4B It is along Figure 3The cross-sectional view shown by the midline segment BB. Figure 5 It is along Figure 3 The cross-sectional view shown by the center line segment CC.

[0092] In some embodiments, the optical element driving mechanism 100 may mainly include a housing 10, a base 12, a sidewall 14, a stop element 16, a frame 20, a transmission element 30, a load-bearing element 40, a first magnetic element 52, a second magnetic element 54, a first coil 62, a second coil 64, a first circuit element 72, a first reinforcing element 74, a second circuit element 76, a second reinforcing element 78, a first guiding element 82, a second guiding element 84, and a positioning element 86.

[0093] The optical element driving mechanism 100 can be used to drive the optical element 90 to move, or it can be used to drive various optical elements (such as lenses, mirrors, prisms, beam splitters, apertures, liquid lenses, image sensors, camera modules, ranging modules, etc.). It should be noted that the definition of optical elements here is not limited to elements related to visible light; elements related to invisible light (such as infrared light, ultraviolet light) can also be included in this invention.

[0094] In some embodiments, the housing 10 and sidewall 14 may be collectively referred to as the fixed portion F. The base 12 and frame 20 may be collectively referred to as the first movable portion M1, which is movable relative to the fixed portion F. The supporting element 40 may be referred to as the second movable portion M2, which is used to support the optical element 90 including the main shaft AX3 and is movable relative to the first movable portion M1. The first magnetic element 52 and the first coil 62 may be collectively referred to as the first drive assembly D1, which is used to drive the first movable portion M1 to move relative to the fixed portion F in a first dimension, such as a circular motion relative to the first axis AX1, wherein the first axis AX1 extends in a first direction (e.g., the Y direction) and the first axis AX1 does not pass through the optical element drive mechanism 100 itself.

[0095] In some embodiments, the transmission element 30, the second magnetic element 54, and the second coil 64 may be collectively referred to as the second drive assembly D2, used to drive the second movable part M2 to move relative to the first movable part M1 in a second dimension, such as a rotational movement relative to the second axis AX2, wherein the second axis AX2 extends in a second direction (e.g., the X direction). In some embodiments, the first dimension and the second dimension are different, and the first direction and the second direction are different. This achieves the function of optical image stabilization. In some embodiments, the aforementioned elements (e.g., the first movable part M1, the second movable part M2, the first drive assembly D1, the second drive assembly D2, etc.) may be disposed within the housing 10 to protect the aforementioned elements.

[0096] In some embodiments, the first movable part M1 and the second movable part M2 can be connected by a connecting element 23, such as connecting the frame 20 and the support element 40. For example, the connecting element 23 can be a shaft, and the second shaft AX2 passes through the connecting element 23, thereby allowing the second movable part M2 to rotate relative to the first movable part M1 along the second shaft AX2. In some embodiments, a shim 94 can be provided between the frame 20 and the connecting element 23 to fix the frame 20 and the connecting element 23.

[0097] In some embodiments, the first movable part M1 and the second movable part M2 can also be connected by the first guide element 82, for example, movably connecting the base 12 and the support element 40. In some embodiments, the first guide element 82 can be a ball that can roll or slide relative to the support element 40, thereby reducing the frictional force when the support element 40 (the second movable part M2) rotates relative to the base 12 (the first movable part M1) about the second axis AX2.

[0098] In some embodiments, the base 12 may have a limiting portion 13 protruding toward the support element 40, and the first guide element 82 may be at least partially disposed in the limiting portion 13, for example, fixed in the limiting portion 13 or rotatably disposed in the limiting portion 13, depending on design requirements. In some embodiments, the limiting portion 13 does not directly contact the support element 40; for example, the limiting portion 13 may have a distance greater than zero between it and the support element 40. Furthermore, the housing 10 and the base 12 can be movably connected by a connecting element 96, and the housing 10 and the sidewall 14 can be fixedly connected by a connecting element 98. The connecting element 96 may be, for example, a ball, a spring, or other element, thereby allowing the first movable portion M1 (e.g., the base 12) to be movably connected to the fixed portion (e.g., the housing 10) to achieve an optical anti-shake effect.

[0099] Figure 6 , Figure 7This is a schematic diagram of the frame 20 as viewed from different directions. The frame 20 may include a first side 21A and a second side 21B connected to each other. The first side 21A and the second side 21B may have a plate-like shape and may extend in different directions. For example, the first side 21A may have a first surface 22A, and the second side 21B may have a second surface 22B. The first surface 22A may be perpendicular to a second direction (X direction), while the second surface 22B may be perpendicular to a first direction (Y direction).

[0100] The connecting element 23 may be disposed on the first side 21A. Furthermore, a first guide groove 24A and a second guide groove 24B extending in a third direction (Z direction) may be formed on the first surface 22A, wherein the third direction is different from the first and second directions, for example, the third direction is perpendicular to the first and second directions. The first side 21A may also have an opening 25 for disposing of the second magnetic element 54.

[0101] The third guide groove 27 may be formed on the second surface 22B of the second side 21B, and may have an arcuate structure centered on the first axis AX1. The third guide groove 27 may be used to house the second guide element 84 with a spherical structure, so as to allow the frame 20 (the first movable part M1) to move relative to the fixed part F along the third guide groove 27 (circular movement centered on the first axis AX1). A groove 28 may also be formed on the second surface 22B for housing the second magnetic element 54.

[0102] In some embodiments, a sidewall 14 may be disposed between the housing 10 and the first movable part M1, and in the first direction (Y direction), the sidewall 14 at least partially overlaps with the frame 20. Furthermore, a plurality of receiving portions 29 may be formed on the second surface 22B, and a plurality of positioning portions 15 may be provided on the sidewall 14. The positioning portions 15 and the receiving portions 29 at least partially overlap in the first direction (Y direction) to provide a positioning element 86 with a spherical structure between the sidewall 14 and the frame 20. This restricts the movement of the first movable part M1 relative to the fixed part F. In some embodiments, viewed from the third direction (Z direction), the second guide element 84 and the positioning element 86 may at least partially expose the frame 20, and the positioning element 86 may at least partially expose the positioning portion 15. This reduces the required thickness of the positioning portion 15 and the frame 20, achieving miniaturization.

[0103] Figure 8 , Figure 9This is a schematic diagram of the transmission element 30 viewed from different directions. The transmission element 30 may include a third surface 35A and a fourth surface 35B that are opposite to each other. A fourth guide groove 31, a fifth guide groove 32, and a groove 34 are formed on the third surface 35A. A sixth guide groove 33 is formed on the fourth surface 35B. The fourth guide groove 31, the fifth guide groove 32, and the sixth guide groove 33 may extend in the same direction, for example, in the third direction (Z direction). Thus, the transmission element 30 can move in the third direction.

[0104] Figure 10 This is a schematic diagram of the support element 40. The support element 40 may include a first surface 41 and a second surface 42. A first groove 43 is located on the first surface 41 of the support element 40, and a second groove 44 is located on the second surface 42 of the support element 40. In some embodiments, the first surface 41 faces the base 12, while the second surface 42 faces the frame 20 or the transmission element 30. In other words, the first surface 41 and the second surface 42 may face different directions. In some embodiments, the first surface 41 may have a curved surface structure centered on the second axis AX2, that is, the first groove 43 has an arcuate structure centered on the second axis AX2. Furthermore, the second groove 44 may also have an arcuate structure centered on the second axis AX2. Thus, the support element 40 can be rotated about the second axis AX2.

[0105] For example, the carrier element 40 may also have a connecting portion 45 for housing the connecting element 23. That is, the second axis AX2 can pass through the connecting portion 45. Furthermore, the carrier element 40 may also have a carrier plane 46 for mounting the optical element 90, and the carrier plane 46 may be perpendicular to the main axis AX3 of the optical element 90. For example, the main axis AX3 may pass through the center of the optical element 90 and is not parallel to the first direction (Y direction) or the second direction (X direction). Thus, the optical element 90 and the second movable portion M2 can be arranged on the main axis AX3. It should be noted that when the carrier element 40 moves relative to the first movable portion M1 in the second dimension, the carrier plane 46 remains perpendicular to the main axis AX3 to ensure the stability of the reflected light direction. In some embodiments, the main axis AX3 may pass through the first guide element 82.

[0106] Figure 11 , Figure 12 This is a schematic diagram of some components of the optical element drive mechanism 100 when viewed from different directions. Figure 13 , Figure 14 This is a schematic diagram of some other components of the optical element drive mechanism 100 when viewed from different directions, wherein... Figure 13 , Figure 14 The side wall 14, the first coil 62, the second circuit element 76, and the second reinforcing element 78 are omitted.

[0107] In some embodiments, the first magnetic element 52 of the first driving assembly D1 may be disposed on the first movable part M1 (e.g., frame 20), and the first coil 62 of the first driving assembly D1 may be disposed on the fixed part F (e.g., sidewall 14). When the first coil 62 is energized, a first driving force is generated between the first magnetic element 52 and the first coil 62 to push the first movable part M1 to move relative to the fixed part F in a first dimension. The second guiding element 84 disposed in the third guide groove 27 can be used to define the direction of movement of the first movable part M1 relative to the fixed part F. For example, in some embodiments, the second guiding element 84 may be fixed to the sidewall 14 and movably connected to the frame 20. In addition, the second guiding element 84 having a spherical structure can also reduce the frictional force when the first movable part M1 moves relative to the fixed part F.

[0108] In some embodiments, the transmission element 30 of the second drive assembly D2 is disposed between the first movable part M1 and the second movable part M2 to transmit the second driving force generated by the second drive assembly D2 to the second movable part M2. For example, a second magnetic element 54 may be disposed on the transmission element 30, and a second coil 64 may be disposed on the frame 20. When the second coil 64 is energized, a second driving force is generated between the second magnetic element 54 and the second coil 64 to drive the second movable part M2 to move relative to the first movable part M1 in a second dimension. Specifically, the second driving force generated between the second magnetic element 54 and the second coil 64 can drive the transmission element 30 to move in a third dimension, such as a translational movement in the Z direction, and the third dimension is different from the first and second dimensions. In some embodiments, a gear or rack structure (not shown) may be provided between the transmission element 30 and the support element 40 to allow the transmission element 30, which moves in the third dimension, to drive the support element 40 to move in the second dimension.

[0109] In some embodiments, a stop element 16 may be provided on the frame 20 to limit the range of motion of the transmission element 30. For example, in the second direction and the third direction, the stop element 16 at least partially overlaps with the transmission element 30. Furthermore, as... Figure 3 As shown, viewed from the third direction (Z direction), the first guide groove 24A and the fourth guide groove 31 are at least partially exposed in the stop element 16, while the second guide groove 24B and the fifth guide groove 32 are not exposed in the stop element 16, that is, the second guide groove 24B and the fifth guide groove 32 at least partially overlap with the stop element 16. Therefore, the maximum range of motion of the transmission element 30 relative to the frame 20 in the Z direction can be limited, and the aforementioned guide grooves can also be protected.

[0110] The first circuit element 72, the first reinforcing element 74, the second circuit element 76, and the second reinforcing element 78 can be disposed in the fixing part F. The first circuit element 72 and the first reinforcing element 74 can be disposed on the first side 21A of the frame 20, while the second circuit element 76 and the second reinforcing element 78 can be disposed between the second side 21B of the frame 20 and the side wall 14. When viewed from the first direction (Y direction), the first circuit element 72 and the second circuit element 76 at least partially overlap with the frame 20, and the second circuit element 76 and the second reinforcing element 78 at least partially protrude from the side wall 14.

[0111] In some embodiments, in the second direction (X direction), the first circuit element 72 at least partially overlaps with the frame 20. Furthermore, in some embodiments, in the second direction, the first circuit element 72 at least partially overlaps with the first reinforcing element 74, and in the first direction, the second circuit element 76 at least partially overlaps with the second reinforcing element 78. This increases the overall structural strength to protect both the first circuit element 72 and the second circuit element 76.

[0112] In some embodiments, the first circuit element 72 and the second circuit element 76 are, for example, flexible printed circuit boards (FPCs), which can be fixed to the fixing part F by adhesive. In this embodiment, the first circuit element 72 and the second circuit element 76 are electrically connected to other electronic components disposed inside or outside the optical element driving mechanism 100. For example, the first circuit element 72 and the second circuit element 76 can transmit electrical signals to the first driving assembly D1 and the second driving assembly D2, thereby controlling the movement of the first movable part M1 and the second movable part M2 in various directions, thereby realizing the function of optical image stabilization.

[0113] Figure 15 This is a schematic diagram of some components of the optical element drive mechanism 100. (Example) Figure 15As shown, viewed from the second direction (X direction), the sixth guide groove 33 of the transmission element 30 and the second groove 44 of the support element 40 may at least partially overlap. In some embodiments, opposing gear or rack structures may be provided in the sixth guide groove 33 and the second groove 44 to allow the transmission element 30 to drive the support element 40 to move. Since the sixth guide groove 33 has a structure extending in the third direction (Z direction), and the second groove 44 has a structure centered on the second axis AX2, when the transmission element 30 moves in the Z direction, the support element 40 can be driven to move in the second dimension (rotational movement centered on the second axis AX2). In some embodiments, when viewed from the second direction (X direction), the first groove 43 has a first radius of curvature R1, the second groove 44 has a second radius of curvature R2, and the first radius of curvature R1 and the second radius of curvature R2 are different. For example, the first radius of curvature R1 may be smaller than the second radius of curvature R2 to allow for more flexible design of the dimensions of the optical element drive mechanism 100.

[0114] Figure 16 This is a schematic diagram of the frame 20 and the transmission element 30. (As shown) Figure 16 As shown, the third surface 35A of the transmission element 30 faces the first surface 22A of the frame 20. Furthermore, in the second direction (X direction), the fourth guide groove 31 and the fifth guide groove 32 of the transmission element 30 at least partially overlap with the first guide groove 24A and the second guide groove 24B of the frame 20, respectively. In some embodiments, additional connecting elements (not shown), such as spheres, may be provided in the aforementioned overlapping guide grooves to movably connect the frame 20 and the transmission element 30.

[0115] In summary, this disclosure provides an optical element driving mechanism, including a fixed portion, a first movable portion, a second movable portion, a first driving assembly, a second driving assembly, and a connecting element. The first movable portion is movable relative to the fixed portion. The second movable portion carries an optical element including a spindle and moves relative to the first movable portion. The first driving assembly drives the first movable portion to move relative to the fixed portion in a first dimension. The second driving assembly drives the second movable portion to move relative to the first movable portion in a second dimension. The connecting element connects the first movable portion and the second movable portion. Thus, the optical element can be driven in various directions to achieve optical image stabilization.

[0116] The specific relative positions and size relationships of the components disclosed in this disclosure not only enable the optical system to achieve thinning in a specific direction and miniaturization of the whole, but also further improve the optical quality (such as shooting quality or depth sensing accuracy) by matching different optical modules, and further utilize each optical module to achieve a multi-stage anti-shake system to greatly improve the anti-shake effect.

[0117] While the embodiments and advantages of this disclosure have been disclosed above, it should be understood that those skilled in the art can make modifications, substitutions, and refinements without departing from the spirit and scope of this disclosure. Furthermore, the scope of protection of this disclosure is not limited to the processes, machines, manufacturing methods, material compositions, apparatuses, methods, and steps described in the specific embodiments of the specification. Any processes, machines, manufacturing methods, material compositions, apparatuses, methods, and steps currently in use or to be developed in the future can be understood from the disclosure of this disclosure, and can be used according to this disclosure as long as they can perform substantially the same function or obtain substantially the same results in the embodiments described herein. Therefore, the scope of protection of this disclosure includes the aforementioned processes, machines, manufacturing methods, material compositions, apparatuses, methods, and steps. In addition, each claim constitutes an individual embodiment, and the scope of protection of this disclosure also includes combinations of the various claims and embodiments.

Claims

1. An optical element driving mechanism, comprising: A fixing part includes a side wall having a plurality of positioning parts; A first movable part for moving relative to the fixed part, the first movable part including a frame and a base, the base including a limiting part; A second movable part is used to carry an optical element including a main shaft and move relative to the first movable part. The second movable part includes a support element for carrying the optical element. A first drive component is used to drive the first movable part to move relative to the fixed part in a first dimension, the movement in the first dimension being a circular motion of the first movable part relative to a first axis, the first axis extending in a first direction; A second drive component is used to drive the second movable part to move relative to the first movable part in a second dimension. The movement in the second dimension is a rotational movement of the second movable part relative to a second axis, which extends in a second direction, and the first direction is different from the second direction. A connecting element connects the first movable part and the second movable part. The connecting element is an axis, and the second movable part rotates relative to the first movable part along the axis. A plurality of positioning elements are disposed between the side wall and the frame. When viewed from a third direction, the plurality of positioning elements are at least partially exposed in the frame and the plurality of positioning parts. The third direction is different from the first direction and the second direction. as well as A first guide element is disposed on the base, and the second movable part is movably connected to the base through the first guide element. The first guide element is at least partially disposed in the limiting part, and the limiting part has a distance greater than zero between it and the bearing element.

2. The optical element driving mechanism as described in claim 1, wherein: The second drive assembly includes a transmission element disposed between the first movable part and the second movable part, for transmitting the second driving force generated by the second drive assembly to the second movable part; in: The first dimension is different from the second dimension; The transmission element moves in a third dimension, which is different from the first and second dimensions; The second axis passes through the second movable part; The main axis is not parallel to the first direction; The main axis is not parallel to the second direction; The optical element and the second movable part are arranged on the main shaft.

3. The optical element driving mechanism as described in claim 2, wherein: The second shaft passes through this connecting element; The support element includes a first groove and a second groove; The load-bearing element has a first surface and a second surface; The first groove is located on the first surface of the supporting element; The second groove is located on the second surface of the supporting element; The first face faces the base; The second surface faces the transmission element; The second side faces the frame; The spindle passes through the first guide element.

4. The optical element driving mechanism as described in claim 3, wherein: The first face and the second face face different directions; The first surface has a curved surface structure centered on the first axis; The first groove has an arc-shaped structure with the first axis as its axis; The second groove has an arc-shaped structure with the first axis as its axis; Viewed from the second direction, the first groove has a first radius of curvature; Viewed from the second direction, the second groove has a second radius of curvature; The first radius of curvature is different from the second radius of curvature.

5. The optical element driving mechanism as described in claim 4, wherein: The bearing element also includes a bearing plane perpendicular to the main shaft; When the bearing element moves relative to the first movable part in the second dimension, the bearing plane is perpendicular to the main axis. The first activity section includes a framework; The frame includes a first side and a second side; A first guide groove and a second guide groove are formed on a first surface on the first side; A third guide groove is formed on a second surface on the second side; The first guide groove and the second guide groove extend upward on the third party; The third guide groove has an arc-shaped structure with the second axis as its axis.

6. The optical element driving mechanism as claimed in claim 5, wherein the fixing part further includes a housing; The first movable part and the second movable part are disposed in the housing; The sidewall is disposed between the housing and the first movable part; In this first direction, the sidewall at least partially overlaps with the frame; The optical element driving mechanism also includes: A second guiding element is disposed in the third guide groove.

7. The optical element driving mechanism as described in claim 6, wherein: The third direction is perpendicular to the first direction and the second direction; Multiple receiving portions are formed on the second side of the frame; In this first direction, the plurality of positioning portions and the plurality of receiving portions at least partially overlap; The plurality of positioning elements are at least partially disposed in the plurality of receiving portions and the plurality of positioning portions; The plurality of the positioning elements have a spherical structure; The second guiding element has a spherical structure; From the perspective of this third party, the second guiding element is at least partially exposed in the frame.

8. The optical element driving mechanism as claimed in claim 7, wherein the transmission element includes a third surface and a fourth surface; The third surface is opposite to the fourth surface; A fourth guide groove and a fifth guide groove are formed on the third surface; A sixth guide groove is formed on the fourth surface; The third surface of the transmission element faces the first surface of the frame; In this second direction, the second groove of the bearing element at least partially overlaps with the sixth guide groove of the transmission element; The second groove of the bearing element and the sixth guide groove of the transmission element have corresponding gear or rack structures; In this second direction, the fourth guide groove and the fifth guide groove of the transmission element at least partially overlap with the first guide groove and the second guide groove of the frame, respectively; From the perspective of this third party, at least partially, the multiple positioning elements are exposed in the positioning portion.

9. The optical element driving mechanism as described in claim 8, further comprising: A stop element is provided in this frame; as well as A gasket is disposed between the connecting element and the frame; in: Viewed from the second direction, the stopping element and the transmission element at least partially overlap; From this third-party perspective, the stopping element and the transmission element at least partially overlap; From the third-party perspective, the first guide groove is at least partially exposed in the stop element; From this third-party perspective, the fourth guide groove is at least partially exposed outside the stop element; From the perspective of this third party, the second guide groove at least partially overlaps with the stop element.

10. The optical element driving mechanism as claimed in claim 9, further comprising: A first circuit element is disposed on the fixed part; A second circuit element is disposed on the fixing part; A first reinforcing element is provided in the fixing part; as well as A second reinforcing element is provided in the fixing part; in: In this first direction, the first circuit element at least partially overlaps with the frame; In this second direction, the first circuit element at least partially overlaps with the frame; In this first direction, the second circuit element at least partially overlaps with the frame; In this second direction, the first circuit element and the first reinforcing element at least partially overlap; In this first direction, the second circuit element at least partially overlaps with the second reinforcing element.

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