Optical element driving mechanism

Abstract

The invention provides an optical element driving mechanism. The optical element driving mechanism comprises a fixed assembly, a movable assembly and a driving assembly. The movable assembly is configured to be connected with an optical element, and the movable assembly can move relative to the fixed assembly. The driving assembly is configured to drive the movable assembly to move relative to the fixed assembly. The fixing assembly includes an accommodating space configured to accommodate the optical element.

Description

Technical Field

[0001] The present invention relates to an optical element driving mechanism, and more particularly to an optical element driving mechanism having a long focal length and an anti-shake function. Background Art

[0002] With the development of technology, many current electronic devices (such as smart phones) have the function of taking pictures or videos. Through the camera module provided on the electronic device, users can operate the electronic device to capture various photos.

[0003] The current design of electronic devices is constantly moving towards the trend of miniaturization, so that various components or their structures of the camera module must also be continuously reduced to achieve the purpose of miniaturization. Generally speaking, the driving mechanism in the camera module may have a lens carrier configured to carry a lens, and the driving mechanism may have functions of auto focusing or optical image stabilization. However, although the existing driving mechanisms can achieve the aforementioned functions of taking pictures or videos, they still cannot meet all requirements.

[0004] Therefore, how to design a camera module that can simultaneously perform auto focusing, optical image stabilization and achieve miniaturization is a topic worthy of discussion and solution today. Summary of the Invention

[0005] In view of this, an object of the present invention is to provide an optical element driving mechanism to solve the above problems.

[0006] The present invention provides an optical element driving mechanism, including a fixed component, a movable component, and a driving component. The movable component is configured to connect an optical element, and the movable component can move relative to the fixed component. The driving component is configured to drive the movable component to move relative to the fixed component. The fixed component includes a receiving space configured to accommodate the optical element.

[0007] According to some embodiments of the present invention, the fixing component includes a housing and a base. The housing is fixedly connected to the base along a main axis. The housing has a first opening, and when viewed along the main axis, the optical element is exposed through the first opening. The housing also has a second opening, and when viewed along a first axial direction, the optical element is exposed through the second opening. The first opening communicates with the second opening. An external light ray enters the first opening along an optical axis and then enters the optical element, and then exits from the optical element and the second opening along the first axial direction. The movable component includes a first movable part and a second movable part. The first movable part is movably connected to the second movable part. The second movable part is movably connected to the base. The driving component includes a first driving element and a first coil. The first driving element is disposed on the first movable part. The optical element driving mechanism further includes a circuit component, and the first coil is disposed on the circuit component. The first driving element is configured to induce with the first coil to generate a first electromagnetic driving force to drive the first movable part to rotate relative to the second movable part about a first rotation axis. The driving component further includes a second driving element, a third driving element, a second coil, and a third coil. The second driving element and the third driving element are disposed on the second movable part. The second coil is disposed on the base. The third coil is disposed on the circuit component. The second driving element is configured to induce with the second coil to generate a second electromagnetic driving force, and the third driving element is configured to induce with the third coil to generate a third electromagnetic driving force, so that the second electromagnetic driving force and the third electromagnetic driving force jointly drive the first movable part and the second movable part of the base to rotate relative to a second rotation axis. The first rotation axis is perpendicular to the second rotation axis. The first rotation axis is perpendicular to the first axial direction. The second rotation axis is parallel to the main axis. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] The present invention can be clearly understood through the following detailed description in conjunction with the drawings. It should be emphasized that, in accordance with the standard practice in the industry, the various features are not drawn to scale and are for illustrative purposes only. In fact, for the sake of clear illustration, the dimensions of the various features may be arbitrarily enlarged or reduced.

[0009] Figure 1 FIG. 9 is a perspective view of an optical element driving mechanism according to an embodiment of the present invention.

[0010] Figure 2 FIG. 13 is an exploded view of an optical element driving mechanism according to an embodiment of the present invention.

[0011] Figure 3 FIG. 17 is a perspective view of a partial structure of an optical element driving mechanism according to an embodiment of the present invention from another perspective.

[0012] Figure 4 FIG. 21 is a perspective view of a partial structure of an optical element driving mechanism according to an embodiment of the present invention.

[0013] Figure 5 A perspective view of a partial structure of an optical element driving mechanism according to an embodiment of the present invention from another perspective.

[0014] Figure 6 is a perspective sectional view of the optical element driving mechanism according to an embodiment of the present invention along Figure 1 section line A - A in

[0015] Figure 7 A perspective view of a partial structure of an optical element driving mechanism according to an embodiment of the present invention.

[0016] Figure 8 is a sectional view of the optical element driving mechanism according to an embodiment of the present invention along Figure 1 section line B - B in

[0017] Figure 9 is a perspective sectional view of the optical element driving mechanism according to an embodiment of the present invention along Figure 1 section line C - C in

[0018] Figure 10 is a sectional view of the optical element driving mechanism according to an embodiment of the present invention along Figure 1 section line D - D in

[0019] Reference numerals are as follows:

[0020] 100: Optical element driving mechanism

[0021] 102: Housing

[0022] 1023: Accommodating space

[0023] 106: First elastic element

[0024] 1061: First connection end

[0025] 1062: Second connection end

[0026] 1063: First flexible portion

[0027] 107: First strengthening member

[0028] 108: First movable portion

[0029] 109: Second movable portion

[0030] 109S: Support surface

[0031] 110: Second elastic element

[0032] 1101: Third connection end

[0033] 1102: Fourth connection end

[0034] 1103: Second flexible part

[0035] 111: Second reinforcement component

[0036] 112: Base

[0037] 112BP: Back panel

[0038] 112C: Protrusion

[0039] 114: Circuit assembly

[0040] 1141: First circuit part

[0041] 1142: Second circuit part

[0042] ACE1: First attracting element

[0043] ACE2: Second attracting element

[0044] ACE3: Third attracting element

[0045] ACF1: First magnetic attraction force

[0046] ACF2: Second magnetic attraction force

[0047] AD1: First connecting element

[0048] AS1: First accommodating space

[0049] AX1: First axial direction

[0050] AX2: Second axial direction

[0051] BG1: First guiding element

[0052] BG2: Second guiding element

[0053] CL1: First coil

[0054] CL2: Second coil

[0055] CL3: Third coil

[0056] DA: Driving assembly

[0057] DS1: First distance

[0058] DS2: Second distance

[0059] FA: Fixing assembly

[0060] GEL1: Bonding element

[0061] GTY: Center of gravity

[0062] GV1: First groove

[0063] GV2: Second groove

[0064] GV3: Third groove

[0065] HP1: Side opening

[0066] LT: External light

[0067] MA: Moving component

[0068] MD1: First shortest distance

[0069] MD2: Second shortest distance

[0070] MF1: First electromagnetic driving force

[0071] MF2: Second electromagnetic driving force

[0072] MF3: Third electromagnetic driving force

[0073] MG1: First driving element

[0074] MG2: Second driving element

[0075] MG3: Third driving element

[0076] MP1: First plate

[0077] MP11: First notch

[0078] MP2: Second plate

[0079] MP21: Second notch

[0080] MP22: Third notch

[0081] MX: Main shaft

[0082] OE: Optical element

[0083] OES: Reflective surface

[0084] OP1: First opening

[0085] OP2: Second opening

[0086] OX: Optical axis

[0087] RS: Rear side

[0088] RX1: First rotating shaft

[0089] RX2: Second rotating shaft

[0090] STP1: First reinforcement plate

[0091] STP2: Second Reinforcing Plate Body

[0092] YK0: Reinforcing Base

[0093] YK1: First Reinforcing Structure

[0094] YK11: First Side

[0095] YK12: Second Side

[0096] YK13: Third Side

[0097] YK2: Second Reinforcing Structure

[0098] YK21: First Contact Portion

[0099] YK3: Third Reinforcing Structure

[0100] YK31: Fourth Side

[0101] YK32: Fifth Side

[0102] YK4: Fourth Reinforcing Structure

[0103] YK41: Sixth Side

[0104] YK42: Seventh Side

[0105] YK5: Fifth Reinforcing Structure

[0106] YK51: Second Contact Portion

[0107] YK52: Third Contact Portion

[0108] YK53: Bending Structure

[0109] X: X-axis

[0110] Y: Y-axis

[0111] Z: Z-axis Detailed Implementation Manner

[0112] Many different implementation methods or examples are disclosed below to implement the different features provided. The following describes embodiments of specific components and their arrangements to illustrate the present invention. Of course, these embodiments are only for illustration and should not limit the scope of the present invention. For example, when it is mentioned in the specification that the first feature component is formed on the second feature component, it may include embodiments where the first feature component and the second feature component are in direct contact, and there may also be embodiments where there are other features between the first feature component and the second feature component. In other words, the first feature component and the second feature component are not in direct contact.

[0113] In addition, in different embodiments, repeated reference numerals or labels may be used. These repetitions are only for the purpose of simply and clearly describing the present invention and do not represent a specific relationship between the different embodiments and / or structures being discussed. Further, forming, connecting to, and / or coupling to another feature component in the present invention may include embodiments where the feature components are formed in direct contact, and may also include embodiments where additional feature components may be formed between the above-mentioned feature components such that the above-mentioned feature components may not be in direct contact. Further, spatial-related terms such as "vertical", "above", "on", "under", "bottom" and similar terms (such as "downwardly", "upwardly", etc.) may be used. These spatial-related terms are for the purpose of facilitating the description of the relationship between one (or more) element or feature and another (or more) element or feature in the drawings. These spatial-related terms are intended to cover different orientations of the device including the features.

[0114] Unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. It is understood that these terms, such as those defined in a commonly used dictionary, should be interpreted to have a meaning consistent with the context of the related art and the background of the present invention, and should not be interpreted in an idealized or overly formal manner, unless specifically defined herein.

[0115] Furthermore, ordinal terms such as "first", "second", etc. used in the specification and claims are used to modify elements of the claims and do not themselves imply or represent any prior ordinal of the claimed element, nor do they represent the order of one claimed element with respect to another or the order in a manufacturing method. The use of multiple such ordinal terms is only to clearly distinguish one claimed element having a certain name from another claimed element having the same name.

[0116] In addition, in some embodiments of the present invention, terms related to joining and connecting such as "connect", "interconnect", etc., unless specifically defined, may refer to two structures in direct contact, or may also refer to two structures not in direct contact with other structures disposed therebetween. And such terms related to joining and connecting may also include cases where both structures are movable or both structures are fixed.

[0117] Please refer to Figures 1 to 3 , Figure 1 a perspective view of an optical element driving mechanism 100 according to an embodiment of the present invention, Figure 2 an exploded view of the optical element driving mechanism 100 according to an embodiment of the present invention, and Figure 3FIG. 0 is a perspective view of a partial structure of an optical element driving mechanism 100 according to an embodiment of the present invention from another perspective. The optical element driving mechanism 100 may be an optical imaging module configured to carry and drive an optical element OE.

[0118] The optical element driving mechanism 100 can be installed in various electronic devices or portable electronic devices, such as a smartphone, for a user to perform an image extraction function. In this embodiment, the optical element driving mechanism 100 may be a voice coil motor (VCM) with an autofocus (AF) function, but the present invention is not limited thereto. In other embodiments, the optical element driving mechanism 100 may also have autofocus (AF) and optical image stabilization (OIS) functions.

[0119] As Figure 2 shown, the optical element driving mechanism 100 may include a fixed component FA, a movable component MA, and a driving component DA. The movable component MA is configured to connect to the aforementioned optical element OE, and the movable component MA can move relative to the fixed component FA. The driving component DA is configured to drive the movable component MA to move relative to the fixed component FA.

[0120] In this embodiment, the fixed component FA includes a housing 102 and a base 112, and the housing 102 is fixedly connected to the base 112 along a main axis MX to form an accommodation space 1023 for accommodating the optical element OE. The housing 102 may have a first opening OP1, and when viewed along the main axis MX, the optical element OE is exposed from the first opening OP1. Among them, the optical element OE may be a reflecting prism, but is not limited thereto.

[0121] As Figure 1 and Figure 2 shown, the housing 102 also has a second opening OP2, and when viewed along a first axial direction AX1, the optical element OE is exposed from the second opening OP2. The first opening OP1 communicates with the second opening OP2, and an external light ray LT enters the first opening OP1 along an optical axis OX and then enters the optical element OE. After being reflected by a reflecting surface OES of the optical element OE, it is then emitted from the optical element OE and the second opening OP2 along the first axial direction AX1.

[0122] In this embodiment, the movable component MA may include a first movable portion 108 and a second movable portion 109. The first movable portion 108 is movably connected to the second movable portion 109, and the second movable portion 109 is movably connected to the base 112.

[0123] Specifically, as Figure 2 and Figure 3As shown, the optical element driving mechanism 100 may further include two first elastic elements 106, which are connected between the first movable part 108 and the second movable part 109. Each first elastic element 106 may have a first connection end 1061, a second connection end 1062, and a first flexible part 1063.

[0124] The first connection end 1061 is fixedly connected to the first movable part 108, the second connection end 1062 is fixedly connected to the second movable part 109, and the first flexible part 1063 is connected between the first connection end 1061 and the second connection end 1062.

[0125] Similarly, the optical element driving mechanism 100 further includes two second elastic elements 110, which are connected between the second movable part 109 and the base 112. Each second elastic element 110 has a third connection end 1101, a fourth connection end 1102, and a second flexible part 1103.

[0126] The third connection end 1101 is fixedly connected to the second movable part 109, the fourth connection end 1102 is fixedly connected to the base 112, and the second flexible part 1103 is connected between the third connection end 1101 and the fourth connection end 1102.

[0127] The first elastic element 106 and the second elastic element 110 may be metal elastic reeds, but are not limited thereto. In addition, the number of the first elastic element 106 and the second elastic element 110 is not limited to this embodiment. It should be noted that both the first elastic element 106 and the second elastic element 110 are located on a rear side surface RS of the movable assembly MA.

[0128] Among them, as Figure 3 shown, the second connection end 1062 has a plate-like structure and is located in a first plane, and the third connection end 1101 has a plate-like structure and is located in a second plane. In this embodiment, the first plane is parallel to the second plane. In addition, the first plane may also overlap with the second plane, but is not limited thereto.

[0129] In addition, it should be noted that in Figure 3 , in order to clearly show the configuration of the first elastic element 106 and the second elastic element 110, the base 112 is represented by a dotted line, but it does not mean that the base 112 does not exist.

[0130] Next, please refer to Figure 2 、 Figure 4 and Figure 5 . Figure 4 is a perspective view of a partial structure of the optical element driving mechanism 100 according to an embodiment of the present invention, and Figure 5A perspective view of a partial structure of the optical element driving mechanism 100 according to an embodiment of the present invention from another perspective. As Figure 2 shown, the optical element driving mechanism 100 further includes a first strengthening member 107, which is partially embedded in the first moving part 108.

[0131] As Figure 4 shown, the first strengthening member 107 may have a strengthening base YK0 and a first strengthening structure YK1. The first strengthening structure YK1 is fixedly connected to the strengthening base YK0, and at least a part of the strengthening base YK0 and the first strengthening structure YK1 is disposed within the first moving part 108.

[0132] As Figure 4 shown, when observed along the first axial direction AX1, the strengthening base YK0 is a rectangular frame structure and is embedded in the first moving part 108. Since the first strengthening member 107 can be made of a metal material, the strengthening base YK0 can enhance the overall structural strength of the first moving part 108.

[0133] Furthermore, as Figure 2 and Figure 4 shown, the driving assembly DA may include a first driving element MG1 and a first coil CL1. The first driving element MG1 is fixedly disposed at the bottom of the first moving part 108.

[0134] Correspondingly, the optical element driving mechanism 100 may further include a circuit assembly 114, and the first coil CL1 is disposed on the circuit assembly 114. The circuit assembly 114 is, for example, a flexible circuit board (FPC board), but is not limited thereto.

[0135] In this embodiment, the first driving element MG1 is configured to induce with the first coil CL1 to generate a first electromagnetic driving force MF1 to drive the first moving part 108 to rotate relative to the second moving part 109 about a first rotation axis RX1. For example, the first moving part 108 can perform a pitch action relative to the second moving part 109 and the base 112.

[0136] As Figure 4 and Figure 5 shown, the first driving element MG1 is disposed on the first strengthening structure YK1, and a part of the first strengthening structure YK1 is located between the first driving element MG1 and the first moving part 108.

[0137] It should be noted that, as Figure 5As shown, the first reinforcement structure YK1 may have a first side YK11, a second side YK12, and a third side YK13, which are disposed on three sides of the first driving element MG1. Among them, the first side YK11 is adjacent to the second side YK12, and the second side YK12 is adjacent to the third side YK13.

[0138] Since the first reinforcement member 107 may have magnetic permeability, based on the configuration of the first side YK11 to the third side YK13, the magnetic field strength of the first driving element MG1 can be increased, and a magnetic attraction force can be generated between the first driving element MG1 and the first reinforcement structure YK1, so as to increase the convenience of installing the first driving element MG1 on the first reinforcement structure YK1 and the positioning accuracy.

[0139] Furthermore, as Figure 2 shown in Figure 4 , the optical element driving mechanism 100 may further include two first guiding elements BG1, which are disposed between the first moving part 108 and the second moving part 109 and are configured to guide the first moving part 108 to rotate around the first rotation axis RX1. Specifically, the first rotation axis RX1 is defined by the two first guiding elements BG1, and the first rotation axis RX1 passes through the two first guiding elements BG1.

[0140] Next, please refer to Figure 2 , Figure 4 and Figure 6 . Figure 6 FIG. is a three-dimensional sectional view of the optical element driving mechanism 100 according to an embodiment of the present invention along the line A-A in Figure 1 . In this embodiment, the optical element driving mechanism 100 further includes two first plate bodies MP1, which are fixedly disposed on the second moving part 109. The first plate body MP1 is, for example, a metal sheet, but is not limited thereto.

[0141] Each of the two first plate bodies MP1 has a first notch MP11, which is configured to accommodate a part of the corresponding first guiding element BG1. As Figure 6 shown in

[0142] , a part of the first guiding element BG1 is accommodated in the first notch MP11. Figure 4 Furthermore, as Figure 6 shown in

[0143] In this embodiment, the reinforcement base YK0, the first reinforcement structure YK1, and the second reinforcement structure YK2 may be integrally formed, but are not limited thereto. Furthermore, the first reinforcement member 107 may be a yoke, but is not limited thereto.

[0144] As Figure 4 shown and Figure 6 shown, each of the second reinforcement structures YK2 may have a first contact portion YK21 configured to abut against a corresponding first guiding element BG1. Accordingly, each of the two first guiding elements BG1 is clamped by the corresponding first contact portion YK21 and the first plate body MP1.

[0145] In this embodiment, the first plate body MP1 may be made of a metallic material, and the first guiding element BG1 may be made of a ceramic material, but is not limited thereto. In this embodiment, the hardness of the first guiding element BG1 may be greater than the hardness of the first contact portion YK21 or the first plate body MP1. Based on such a configuration, the problem of particles generated by friction between the first guiding element BG1 and the first plate body MP1 can be avoided.

[0146] In addition, since the first movable portion 108 and the second movable portion 109 may be made of a plastic material, the configuration of the first contact portion YK21 and the first plate body MP1 can also enhance the structural strength of the first movable portion 108 and the second movable portion 109 to prevent the first guiding element BG1 from damaging the first movable portion 108 or the second movable portion 109.

[0147] In this embodiment, as Figure 4 shown and Figure 6 shown, the optical element driving mechanism 100 may further include two first attracting elements ACE1 fixedly disposed on the first movable portion 108. The first movable portion 108 may have two first grooves GV1 configured to respectively receive the two first attracting elements ACE1.

[0148] Correspondingly, the optical element driving mechanism 100 further includes two second attracting elements ACE2 fixedly disposed on the second movable portion 109 and respectively corresponding to the first attracting elements ACE1. The second movable portion 109 may have two second grooves GV2 configured to respectively receive the two second attracting elements ACE2.

[0149] The two first attracting elements ACE1 and the two second attracting elements ACE2 may be made of a magnetic material. For example, the first attracting elements ACE1 and the second attracting elements ACE2 may be magnets, but are not limited thereto. For example, one of the first attracting element ACE1 and the second attracting element ACE2 may be a magnet, and the other may be a magnetic sheet.

[0150] The first attracting element ACE1 is configured to generate a first magnetic attraction force ACF1 with a corresponding second attracting element ACE2, and the first magnetic attraction force ACF1 can be parallel to the main axis MX (Z-axis), but is not limited thereto.

[0151] The two aforementioned first magnetic attraction forces ACF1 are configured to drive the first movable part 108 to closely adjoin the second movable part 109, so as to ensure that the first movable part 108 does not separate from the second movable part 109 when rotating around the first rotation axis RX1 relative to the second movable part 109.

[0152] As Figure 6 shown, the first movable part 108 further has two third grooves GV3, which are configured to accommodate two first guiding elements BG1 and two first contact parts YK21, and the third grooves GV3 communicate with the corresponding first grooves GV1.

[0153] It should be noted that the first attracting element ACE1 is adjacent to the corresponding first contact part YK21. Therefore, an adsorption force (such as a magnetic attraction force) can be generated between the first attracting element ACE1 and the corresponding first contact part YK21, so that the first attracting element ACE1 can be easily installed in the first groove GV1.

[0154] As Figure 4 shown, when observing along the first axial direction AX1, the two first guiding elements BG1 are located between the two first attracting elements ACE1, and when observing along the first axial direction AX1, the two first guiding elements BG1 are located between the two second attracting elements ACE2. The first attracting element ACE1 and the second attracting element ACE2 are adjacent to the corresponding first guiding elements BG1.

[0155] Next, please refer to Figure 2 、 Figure 7 and Figure 8 . Figure 7 is a perspective view of a partial structure of the optical element driving mechanism 100 according to an embodiment of the present invention, and Figure 8 is a cross-sectional view of the optical element driving mechanism 100 according to an embodiment of the present invention along the line B-B in Figure 1 . It should be noted that in Figure 7 , in order to clearly show the internal structure, the second movable part 109 is represented by a dotted line, but it does not mean that the second movable part 109 does not exist.

[0156] In this embodiment, the driving assembly DA may further include a second driving element MG2, a third driving element MG3, a second coil CL2, and a third coil CL3. The second driving element MG2 and the third driving element MG3 are disposed on the second movable part 109. The second coil CL2 is disposed on the base 112. The second coil CL2 may be electrically connected to the circuit component 114 through a circuit structure (such as a metal wire, not shown in the figure) embedded and molded in the base 112, and the third coil CL3 is disposed on the circuit component 114.

[0157] Among them, the first driving element MG1, the second driving element MG2, and the third driving element MG3 may be magnets, such as multi-pole magnets, but are not limited thereto.

[0158] As Figure 7 shown, the optical element driving mechanism 100 may further include a second reinforcing member 111 disposed on the second movable part 109. The second reinforcing member 111 may include a third reinforcing structure YK3 and a fourth reinforcing structure YK4, which are partially disposed in the second movable part 109. The second driving element MG2 is disposed on the third reinforcing structure YK3, and a part of the third reinforcing structure YK3 is located between the second driving element MG2 and the second movable part 109.

[0159] Specifically, the third reinforcing structure YK3 has a fourth side portion YK31 and a fifth side portion YK32 disposed on both sides of the second driving element MG2, and the fourth side portion YK31 is adjacent to the fifth side portion YK32. The third reinforcing structure YK3 may be made of a metal material and has magnetic permeability, so that the second driving element MG2 can be accurately positioned on the second movable part 109.

[0160] Similarly, the third driving element MG3 is disposed on the fourth reinforcing structure YK4, and a part of the fourth reinforcing structure YK4 is located between the third driving element MG3 and the second movable part 109. The fourth reinforcing structure YK4 has a sixth side portion YK41 and a seventh side portion YK42 disposed on both sides of the third driving element MG3.

[0161] Among them, the sixth side portion YK41 is adjacent to the seventh side portion YK42. Similarly, since the fourth reinforcing structure YK4 can be made of a metal material and has magnetic permeability, the third driving element MG3 can be accurately positioned on the second movable part 109.

[0162] Furthermore, the second strengthening member 111 of the optical element driving mechanism 100 may further include a fifth strengthening structure YK5, which is partially disposed in the second movable portion 109, and the third strengthening structure YK3 and the fourth strengthening structure YK4 are fixedly connected to the fifth strengthening structure YK5. In this embodiment, the fifth strengthening structure YK5 may be made of a metal material, and the third strengthening structure YK3, the fourth strengthening structure YK4, and the fifth strengthening structure YK5 may be integrally formed, but not limited thereto.

[0163] It should be noted that, as Figure 8 shown, when viewed along the main axis MX (Z-axis), the second movable portion 109 has a U-shaped structure. Based on the configuration of the fifth strengthening structure YK5, the overall structural strength of the second movable portion 109 can be increased, avoiding the problem that the middle part of the second movable portion 109 is damaged due to movement or impact.

[0164] As Figure 8 shown, the second driving element MG2 is configured to induce with the second coil CL2 to generate a second electromagnetic driving force MF2, and the third driving element MG3 is configured to induce with the third coil CL3 to generate a third electromagnetic driving force MF3, so that the second electromagnetic driving force MF2 and the third electromagnetic driving force MF3 can jointly drive the first movable portion 108 and the second movable portion 109 to rotate relative to the base 112 about a second rotation axis RX2.

[0165] Among them, the directions of the second electromagnetic driving force MF2 and the third electromagnetic driving force MF3 are opposite. For example, when the second electromagnetic driving force MF2 is toward the -Y axis, the third electromagnetic driving force MF3 is toward the +Y axis. Therefore, the second electromagnetic driving force MF2 and the third electromagnetic driving force MF3 can jointly drive the second movable portion 109 and the first movable portion 108 to rotate counterclockwise about the second rotation axis RX2.

[0166] Conversely, when the second electromagnetic driving force MF2 is toward the +Y axis, the third electromagnetic driving force MF3 is toward the -Y axis. Therefore, the second electromagnetic driving force MF2 and the third electromagnetic driving force MF3 can jointly drive the second movable portion 109 and the first movable portion 108 to rotate clockwise about the second rotation axis RX2.

[0167] Among them, as Figure 7 shown, the first rotation axis RX1 is perpendicular to the second rotation axis RX2, the first rotation axis RX1 is perpendicular to the first axial direction AX1, and the second rotation axis RX2 may be parallel to the main axis MX (Z-axis), but not limited thereto.

[0168] Please refer to Figure 2 、 Figures 7 to 9 。 Figure 9 For the optical element driving mechanism 100 according to an embodiment of the present invention along Figure 1A three-dimensional sectional view of the middle line segment C-C. In this embodiment, the optical element driving mechanism 100 further includes two second guiding elements BG2, which are disposed between the second moving part 109 and the base 112 and are configured to guide the second moving part 109 and the first moving part 108 to rotate around the second rotation axis RX2.

[0169] As Figure 7 shown in Figure 9 FIG. 7, the second rotation axis RX2 is defined by the two second guiding elements BG2, and the second rotation axis RX2 passes through the two second guiding elements BG2. Furthermore, the optical element driving mechanism 100 further includes a second plate body MP2, which is fixedly disposed on the base 112.

[0170] As Figure 9 shown in FIG. 14, when viewed along a second axial direction AX2, the two second guiding elements BG2 are located between the second moving part 109 and the second plate body MP2. Among them, the second axial direction AX2 is perpendicular to the first axial direction AX1.

[0171] As Figure 7 shown in FIG. 21, in the direction of the second axial direction AX2, there is a first distance DS1 between the two first guiding elements BG1, and in the direction of the main axis MX, there is a second distance DS2 between the two second guiding elements BG2, and the second distance DS2 is different from the first distance DS1. In this embodiment, the second distance DS2 is smaller than the first distance DS1.

[0172] As Figure 2 shown in FIG. 27, the second plate body MP2 has a second notch MP21 and a third notch MP22, which are configured to respectively accommodate a part of the two second guiding elements BG2. Correspondingly, the fifth strengthening structure YK5 may have a second contact part YK51 and a third contact part YK52, which are configured to respectively abut against the two second guiding elements BG2.

[0173] Therefore, one of the two second guiding elements BG2 ( Figure 9 the upper one in Figure 9 FIG. 34) is clamped by the second contact part YK51 and the second plate body MP2, and the other of the two second guiding elements BG2 ( Figure 9 the lower one in FIG. 38) is clamped by the third contact part YK52 and the second plate body MP2.

[0174] Furthermore, as Figure 9 shown in FIG. 45, the first moving part 108 has a first accommodation space AS1, and a part (such as the middle part) of the second moving part 109 is located in the first accommodation space AS1. In addition, the base 112 has a back plate 112BP and a convex part 112C, and the convex part 112C protrudes from the back plate 112BP along the first axial direction AX1 towards the second moving part 109.

[0175] Similarly, a part of the convex portion 112C is also located in the first accommodation space AS1. Thus, such a configuration enables the optical element driving mechanism 100 to achieve miniaturization.

[0176] In this embodiment, the optical element driving mechanism 100 may further include a third attracting element ACE3 fixedly disposed on the convex portion 112C. The third attracting element ACE3 is made of a magnetic material, and the third attracting element ACE3 is, for example, a magnet. Correspondingly, the fifth reinforcing structure YK5 may be made of a magnetically permeable material.

[0177] Specifically, as Figure 7 shown in Figure 9 connection with

[0178] the fifth reinforcing structure YK5 may further have a bent structure YK53 located between the second contact portion YK51 and the third contact portion YK52, and the bent structure YK53 is bent toward the convex portion 112C. When viewed along the second axis AX2, a part of the bent structure YK53 does not overlap with the second contact portion YK51 or the third contact portion YK52.

[0179] In addition, it is worth noting that, as Figure 9 shown in Figure 9 the first moving part 108 and the optical element OE may jointly have a center of gravity GTY, and when viewed along the second axis AX2, the center of gravity GTY and the first rotation axis RX1 are on the same side of the reflection surface OES (

[0180] the upper left side in

[0181] ). Since the center of gravity GTY is closer to the first rotation axis RX1, the torque generated by the center of gravity GTY with respect to the first rotation axis RX1 is smaller, so that the first moving part 108 can rotate more stably around the first rotation axis RX1. Figure 3To ensure the stability of the first movable part 108 and the second movable part 109 during movement, and to prevent the first movable part 108 or the second movable part 109 from hitting the base 112 when the optical element driving mechanism 100 is impacted, the optical element driving mechanism 100 may further include two bonding elements GEL1 disposed between the first movable part 108 and the base 112.

[0182] In this embodiment, the bonding element GEL1 may be made of an elastic material. The bonding element GEL1 is, for example, a gel, but is not limited thereto. It should be noted that the bonding element GEL1 is not disposed between the first movable part 108 and the second movable part 109.

[0183] In addition, as Figure 3 shown, the two bonding elements GEL1 in this embodiment are symmetrically arranged left and right, for example, symmetric with respect to the first axis AX1 (central axis), and the optical element OE is located between the two bonding elements GEL1. Based on such an arrangement, the stability of the first movable part 108 and the second movable part 109 during movement can be increased.

[0184] Next, please refer to Figure 2 and Figure 10 . Figure 10 is a cross-sectional view of the optical element driving mechanism 100 according to an embodiment of the present invention along the Figure 1 line segment D-D in. In this embodiment, the circuit assembly 114 may have a first circuit portion 1141 and a second circuit portion 1142, and the first circuit portion 1141 is connected to the second circuit portion 1142.

[0185] The first circuit portion 1141 extends along the second axis AX2, the second circuit portion 1142 is bent from the first circuit portion 1141 and extends along the main axis MX, and the first coil CL1 and the third coil CL3 are respectively disposed on the first circuit portion 1141 and the second circuit portion 1142.

[0186] Furthermore, as Figure 2 shown, the base 112 has a side opening HP1, and when viewed along the second axis AX2, the third coil CL3 can be exposed from the side opening HP1. That is to say, the third coil CL3 is disposed in the side opening HP1.

[0187] In addition, the optical element driving mechanism 100 may further include a first reinforcing plate STP1 disposed in the side opening HP1 and fixedly connected to the second circuit portion 1142. The first reinforcing plate STP1 may be made of a metal material and is configured to strengthen the structural strength of the second circuit portion 1142. Based on the configuration of the first reinforcing plate STP1, the problem that the second circuit portion 1142 falls towards the housing 102 due to gravity and causes damage can be avoided.

[0188] It should be noted that, as Figure 10 shown, when observed along the first axis AX1, there is a first shortest distance MD1 between the first reinforcing plate body STP1 and the housing 102, there is a support surface 109S within the side opening HP1, and there is a second shortest distance MD2 between the support surface 109S and the housing 102. Among them, the support surface 109S is configured to support the second circuit portion 1142.

[0189] Among them, the first shortest distance MD1 is less than the second shortest distance MD2. Based on such a configuration, it is possible to avoid the problem that the second circuit portion 1142 collides with the first reinforcing plate body STP1 and the housing 102, causing damage.

[0190] In addition, it should be noted that in this embodiment, the first reinforcing plate body STP1 is made of a non-magnetic material to avoid interfering with the magnetic field of the third driving element MG3.

[0191] In some embodiments, the housing 102 can be made of a metal material, and the optical element driving mechanism 100 can further include a first connecting element AD1, which is disposed between the first reinforcing plate body STP1 and the housing 102.

[0192] The first connecting element AD1 is, for example, glue, but is not limited thereto. Since a part of the first connecting element AD1 contacts the base 112, the base 112 can be fixedly connected to the housing 102.

[0193] Furthermore, as Figure 2 and Figure 10 shown, the optical element driving mechanism 100 can further include a second reinforcing plate body STP2, which is disposed at the bottom of the base 112, and the first circuit portion 1141 is disposed on the second reinforcing plate body STP2.

[0194] The second reinforcing plate body STP2 can be made of a metal material, and the second reinforcing plate body STP2 can be fixedly connected to the housing 102 by welding to more firmly fix other elements of the optical element driving mechanism 100 within the housing 102.

[0195] The present invention provides an optical element driving mechanism 100, which can be a periscope lens mechanism, including a fixed component FA, a movable component MA, and a driving component DA. The movable component MA includes a first movable portion 108 and a second movable portion 109. The first movable portion 108 can be movably connected to the second movable portion 109 through a first elastic element 106, and the second movable portion 109 can be movably connected to the base 112 of the fixed component FA through a second elastic element 110.

[0196] The optical element driving mechanism 100 further includes two first guiding elements BG1 disposed between the first movable part 108 and the second movable part 109, and the two first guiding elements BG1 can form a first rotating shaft RX1, so that the first movable part 108 can rotate relative to the second movable part 109 around the first rotating shaft RX1. Similarly, the optical element driving mechanism 100 further includes two second guiding elements BG2 disposed between the second movable part 109 and the base 112, and the two second guiding elements BG2 can form a second rotating shaft RX2, so that the second movable part 109 can rotate relative to the base 112 around the second rotating shaft RX2.

[0197] It should be noted that since the movable assembly MA is divided into the first movable part 108 and the second movable part 109 and is supported by the first elastic element 106 and the second elastic element 110 respectively, such a configuration can disperse the weight of the lens (optical element OE) to the first movable part 108, the first elastic element 106, the second movable part 109, and the second elastic element 110, enabling the optical element driving mechanism 100 to carry a heavier lens. Moreover, such a configuration can also improve the accuracy of the first movable part 108 and the second movable part 109 during movement to achieve a better imaging effect.

[0198] Although the embodiments of the present invention and their advantages have been disclosed above, it should be understood that those skilled in the art can make changes, substitutions, and modifications without departing from the spirit and scope of the present invention. In addition, the protection scope of the present invention is not limited to the processes, machines, manufactures, compositions of matter, devices, methods, and steps in the specific embodiments described in the specification. Any person skilled in the art can understand the processes, machines, manufactures, compositions of matter, devices, methods, and steps developed currently or in the future from the disclosed content of the present invention. As long as they can implement substantially the same functions or obtain substantially the same results in the embodiments described herein, they can be used according to the present invention. Therefore, the protection scope of the present invention includes the above-mentioned processes, machines, manufactures, compositions of matter, devices, methods, and steps. Additionally, each claim constitutes an individual embodiment, and the protection scope of the present invention also includes the combination of each claim and embodiment.

Claims

1. An optical element driving mechanism, characterized in that: include: a fixing component; a movable component configured to connect to an optical element and movable relative to the fixed component; and a driving assembly configured to drive the movable assembly to move relative to the fixed assembly; The fixing assembly includes a containing space configured to accommodate the optical element.

2. The optical element driving mechanism according to claim 1, wherein: The fixing assembly includes a housing and a base; The housing is fixedly connected to the base along a main axis; The housing has a first opening, and when viewed along the main axis, the optical element is exposed from the first opening; The housing also has a second opening, and when viewed along a first axial direction, the optical element is exposed from the second opening; The first opening is connected to the second opening; An external light is incident on the first opening along an optical axis and then enters the optical element, and then is emitted from the optical element and the second opening along the first axis; The movable assembly includes a first movable part and a second movable part; The first movable part is movably connected to the second movable part; The second movable portion is movably connected to the base; The driving assembly includes a first driving element and a first coil; The first driving element is disposed on the first movable portion; The optical element driving mechanism further comprises a circuit assembly, and the first coil is arranged on the circuit assembly; The first driving element is configured to induce the first coil to generate a first electromagnetic driving force to drive the first movable part to rotate around a first rotation axis relative to the second movable part; The driving assembly also includes a second driving element, a third driving element, a second coil and a third coil; The second driving element and the third driving element are disposed on the second movable portion; The second coil is disposed on the base; The third coil is disposed on the circuit component; The second driving element is configured to induce the second coil to generate a second electromagnetic driving force, and the third driving element is configured to induce the third coil to generate a third electromagnetic driving force, so that the second electromagnetic driving force and the third electromagnetic driving force jointly drive the first movable part and the second movable part to rotate relative to the base around a second rotation axis; The first rotation axis is perpendicular to the second rotation axis; The first rotation axis is perpendicular to the first axial direction; The second rotation axis is parallel to the main axis.

3. The optical element driving mechanism according to claim 2, wherein: The optical element driving mechanism further includes a first elastic element connected between the first movable portion and the second movable portion; The first elastic element has a first connecting end, a second connecting end and a first flexible portion; The first connection end is fixedly connected to the first movable portion, the second connection end is fixedly connected to the second movable portion, and the first flexible portion is connected between the first connection end and the second connection end; The optical element driving mechanism further includes a second elastic element connected between the second movable portion and the base; The second elastic element has a third connecting end, a fourth connecting end and a second flexible portion; The third connection end is fixedly connected to the second movable portion, the fourth connection end is fixedly connected to the base, and the second flexible portion is connected between the third connection end and the fourth connection end; The first elastic element and the second elastic element are both located on a rear side of the movable component; The second connecting end has a plate-like structure and is located on a first plane; The third connecting end has a plate-like structure and is located on a second plane; The first plane is parallel to the second plane.

4. The optical element driving mechanism according to claim 2, wherein: The optical element driving mechanism also includes a reinforcing base and a first reinforcing structure; The first reinforcement structure is fixedly connected to the reinforcement base; The reinforcement base and at least a portion of the first reinforcement structure are disposed within the first movable portion; The first driving element is disposed on the first reinforcing structure, and a portion of the first reinforcing structure is located between the first driving element and the first movable portion; The first reinforcing structure has a first side portion, a second side portion and a third side portion, and is disposed on three sides of the first driving element; The first side portion is adjacent to the second side portion, and the second side portion is adjacent to the third side portion; The optical element driving mechanism further includes two first guiding elements, disposed between the first movable portion and the second movable portion, and configured to guide the first movable portion to rotate around the first rotation axis; The first rotating shaft passes through the two first guiding elements; The optical element driving mechanism further includes two first plates fixedly disposed on the second movable portion; Each of the two first plates has a first recess configured to accommodate a portion of the corresponding first guide element; The optical element driving mechanism further includes two second reinforcing structures, which are partially disposed in the first movable portion; The reinforcement base is connected between the two second reinforcement structures; Each of the second reinforcement structures has a first contact portion configured to abut against the corresponding first guiding element; Each of the two first guiding elements is clamped by the corresponding first contact portion and the first plate.

5. The optical element driving mechanism according to claim 4, characterized in that: The optical element driving mechanism further includes two first attracting elements fixedly disposed on the first movable portion; The first movable portion has two first grooves configured to respectively accommodate the two first attracting elements; The optical element driving mechanism further includes two second attracting elements, which are fixedly disposed on the second movable portion and correspond to the first attracting elements respectively; The second movable portion has two second grooves configured to respectively accommodate the two second attracting elements; The two first attracting elements and the two second attracting elements are made of magnetic material; The two first attracting elements are configured to generate two first magnetic attraction forces with the two second attracting elements respectively, and the two first magnetic attraction forces are parallel to the main axis; The two first magnetic attraction forces are configured to drive the first movable portion to move toward the second movable portion; The first movable portion further has two third grooves configured to accommodate the two first guiding elements; Each of the two third grooves is connected to the corresponding first groove; The first attraction element is adjacent to the corresponding first contact portion, and an adsorption force is generated between the first attraction element and the corresponding first contact portion to position the first attraction element; When viewed along the first axial direction, the two first guiding elements are located between the two first attracting elements; When viewed along the first axial direction, the two first guiding elements are located between the two second attracting elements; The first attracting element and the second attracting element are adjacent to the corresponding first guiding element.

6. The optical element driving mechanism according to claim 5, characterized in that: The optical element driving mechanism further includes a third strengthening structure and a fourth strengthening structure, which are partially disposed in the second movable portion; The second driving element is disposed on the third reinforcing structure, and a portion of the third reinforcing structure is located between the second driving element and the second movable portion; The third reinforcement structure has a fourth side portion and a fifth side portion, which are disposed on two sides of the second driving element; The fourth side portion is adjacent to the fifth side portion; The third driving element is disposed on the fourth reinforcing structure, and a portion of the fourth reinforcing structure is located between the third driving element and the second movable portion; The fourth reinforcement structure has a sixth side portion and a seventh side portion, which are disposed on two sides of the third driving element; The sixth side portion is adjacent to the seventh side portion.

7. The optical element driving mechanism according to claim 6, wherein: The optical element driving mechanism further includes two second guiding elements, which are disposed between the second movable portion and the base and are configured to guide the second movable portion and the first movable portion to rotate around the second rotation axis; The second rotating shaft passes through the two second guiding elements; The optical element driving mechanism also includes a second plate body fixedly disposed on the base; When viewed along a second axial direction, the two second guide elements are located between the second movable portion and the second plate; The second axial direction is perpendicular to the first axial direction; In the second axial direction, there is a first distance between the two first guide elements; In the direction of the main axis, there is a second distance between the two second guiding elements; The second distance is different from the first distance; The second distance is smaller than the first distance.

8. The optical element driving mechanism according to claim 7, wherein: The optical element driving mechanism further includes a fifth reinforcing structure partially disposed in the second movable portion; The third reinforcement structure and the fourth reinforcement structure are fixedly connected to the fifth reinforcement structure; The third reinforcement structure, the fourth reinforcement structure and the fifth reinforcement structure are integrally formed; The second plate has a second notch and a third notch, configured to respectively accommodate a portion of the two second guide elements; The fifth reinforcement structure has a second contact portion and a third contact portion, configured to abut against the two second guiding elements respectively; One of the two second guiding elements is clamped by the second contact portion and the second plate; The other of the two second guiding elements is clamped by the third contact portion and the second plate; The first movable part has a first accommodating space, and a part of the second movable part is located in the first accommodating space; The base has a back plate and a convex portion, and the convex portion protrudes from the back plate along the first axial direction toward the second movable portion; A portion of the protrusion is located in the first accommodating space; The optical element driving mechanism further includes a third attraction element fixedly disposed on the convex portion; The third attracting element is made of magnetic material; The fifth reinforcement structure is made of a magnetically conductive material; The fifth reinforcement structure further has a bending structure located between the second contact portion and the third contact portion; When viewed along the second axial direction, a portion of the bent structure does not overlap the second contact portion or the third contact portion; The third attracting element is configured to generate a second magnetic attraction force with the bending structure, and the second magnetic attraction force is parallel to the first axial direction; The second magnetic attraction force is configured to drive the fifth reinforcement structure to drive the second movable portion to move toward the base, so that the fifth reinforcement structure and the second plate body clamp the two second guiding elements together.

9. The optical element driving mechanism according to claim 8, wherein: The optical element driving mechanism further includes at least one adhesive element disposed between the first movable portion and the base; The bonding element has an elastic material; The adhesive element is not disposed between the first movable portion and the second movable portion; The optical element driving mechanism comprises two adhesive elements, and the optical element is located between the two adhesive elements.

10. The optical element driving mechanism according to claim 9, wherein: The circuit assembly has a first circuit portion and a second circuit portion, and the first circuit portion is connected to the second circuit portion; The first circuit portion extends along the second axial direction; The second circuit portion is bent from the first circuit portion and extends along the main axis; The first coil and the third coil are respectively disposed in the first circuit portion and the second circuit portion; The base has a side opening, and when viewed along the second axial direction, the third coil is exposed from the side opening; The optical element driving mechanism further includes a first reinforcing plate, which is disposed in the side opening and fixedly connected to the second circuit portion; The first reinforcing plate is configured to strengthen the structural strength of the second circuit portion; When viewed along the first axial direction, there is a first shortest distance between the first reinforcing plate and the housing. The side opening has a support surface; There is a second shortest distance between the support surface and the housing; The support surface is configured to support the second circuit portion; The first shortest distance is smaller than the second shortest distance; The first reinforcing plate is made of a non-magnetic material; The housing is made of metal; The optical element driving mechanism further includes a first connecting element, which is disposed between the first reinforcing plate and the housing; The optical element driving mechanism also includes a second reinforcing plate fixedly connected to the housing; The first circuit part is arranged on the second reinforcing plate.

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