Optical element driving mechanism

Abstract

An optical element driving mechanism comprises a movable part, a fixed part and a driving assembly. The movable part is used for connecting a plurality of optical elements and can move relative to the fixed part. The driving assembly drives the movable part to move relative to the fixed part.

Description

Technical Field

[0001] The utility model relates to an optical element driving mechanism, in particular to an optical element driving mechanism with a guiding component. Background Art

[0002] With the development of technology, many electronic devices (such as laptops, smart phones or digital cameras) now have the function of taking photos or recording videos. The use of these electronic devices is becoming more and more common. In addition to developing more stable and better optical quality, they are also moving towards convenient and lightweight designs to provide users with more choices.

[0003] In view of this, there is a need for an optical element driving mechanism that allows the photographing angle of the optical module to be adjusted to meet different external photographic requirements. Utility Model Content

[0004] The terms of embodiment and similar terms (e.g., implementation, configuration, features, examples, and options) are intended to broadly refer to all of the subject matter of the present invention and the following claims. Several statements containing these terms should be understood as not limiting the subject matter described herein or limiting the meaning or scope of the following claims. The embodiments of the present invention covered herein are defined by the following claims, rather than the present invention content. This utility model content is a high-level overview of the various features of the present invention, and introduces some of the concepts described in more detail in the following implementation paragraphs. This utility model content is not intended to identify the key or essential features of the subject matter of the claims, nor is it intended to be used independently to determine the scope of the subject matter of the claims. This subject matter should be understood by reference to appropriate portions of the complete specification of the utility model, any or all drawings, and each claim.

[0005] The purpose of the utility model is to provide an optical element driving mechanism to solve at least one of the above problems.

[0006] According to certain aspects of the present invention, an optical element driving mechanism is provided, which includes a movable part, a fixed part, and a driving assembly, wherein the movable part is used to connect an optical module and can move relative to the fixed part, and the driving assembly is used to drive the movable part to move relative to the fixed part.

[0007] According to certain features of the utility model, the optical element driving mechanism also includes a guiding assembly that can move relative to the movable part and the fixed part. The driving assembly drives the guiding assembly to move in a first dimension. The guiding assembly guides the movable part to move in a second dimension relative to the fixed part. The first dimension is different from the second dimension. The first dimension is movement on a first axis. The second dimension is rotation with a second axis as the axis center. The first axis and the second axis are perpendicular to each other. The first axis, the second axis and a third axis are perpendicular to each other. The optical element driving mechanism has a long strip structure extending along the first axis.

[0008] According to certain features of the utility model, the driving assembly includes a first driving part and a second driving part, the first driving part includes a first coil and a first magnetic element, the first magnetic element corresponds to the first coil, and the second driving part includes a second coil and a second magnetic element, the second magnetic element corresponds to the second coil. The first driving part and the second driving part are arranged along the first axis. When observed along the third axis, the optical module is located between the first driving part and the second driving part.

[0009] According to certain features of the utility model, the movable portion further includes a contact portion, the contact portion has a rounded corner, and a radius of the rounded corner is about 0.1 mm. The guide assembly includes a bump corresponding to the contact portion, and the contact portion contacts the bump. When viewed along the third axis, the bump at least partially overlaps with the first driving portion.

[0010] According to certain features of the utility model, the optical element driving mechanism further includes a sensing component and a pressure component, wherein the sensing component is used to sense the movement of the guide component relative to the fixed portion. The pressure component is used to generate a pressure to make the movable portion approach the guide component, and the pressure makes the contact portion contact the protrusion, and the pressure component has magnetic conductivity and corresponds to the first magnetic element. When observed along the third axis, the protrusion at least partially overlaps with the sensing component, and the pressure component at least partially overlaps with the first driving portion.

[0011] According to certain features of the present invention, a sensing signal output by the sensing component corresponds to the position of the movable portion relative to the fixed portion.

[0012] According to certain features of the utility model, the guide assembly has a bridge portion, the movable part has a rotation axis, and the bridge portion limits the movement of the movable part by blocking the rotation axis. When viewed along the third axis, the bridge portion overlaps the rotation axis.

[0013] According to certain features of the present invention, the fixing portion has a bottom plate, which is magnetically conductive and corresponds to the rotating shaft.

[0014] According to certain features of the present invention, a material of the movable portion and a material of the guide component have different Young's moduli.

[0015] According to certain features of the present invention, a material of the movable part and a material of the guide component have the same Young's modulus, and the material is plastic or ceramic.

[0016] The beneficial effect of the utility model is that the utility model provides an optical element driving mechanism, which includes a movable part, a fixed part, a guide component, a driving component, and a sensing component. The guide component contacts the movable part, and the movement of the guide component drives the movable part to move relative to the fixed part. Thus, the photographic angle of the optical module can be adjusted to adapt to different external photography needs, and miniaturization can also be achieved. At the same time, the structure in which the magnetically conductive elements attract each other can also effectively reduce operational errors caused by mutual interference during operation, stabilize the internal structure, and provide more stable and better optical quality.

[0017] The above utility model content is not intended to present every embodiment or every feature of the utility model. Rather, the foregoing utility model content only provides examples of some of the novel features and characteristics set forth herein. When combined with the accompanying drawings and the appended claims, the above features and advantages of the utility model and other features and advantages will become apparent from the following detailed description of representative embodiments and modes for implementing the utility model. In view of the detailed description of various embodiments with reference to the drawings, the symbols provided below simply illustrate the additional features of the utility model will be apparent to those skilled in the art. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention and its advantages will be better understood from the following description of exemplary embodiments in conjunction with the accompanying drawings, which illustrate exemplary embodiments only and should not be considered as limiting the various embodiments or claims.

[0019] Figure 1 It is a front stereoscopic diagram of an optical module and an optical element driving mechanism according to certain features of the utility model.

[0020] Figure 2 The present invention is a front perspective view of an optical module and an optical element driving mechanism according to certain features of the present invention, wherein the housing of the optical element driving mechanism is removed for illustrative purposes.

[0021] Figure 3 The exploded perspective view of the optical module and the optical element driving mechanism according to certain features of the utility model.

[0022] Figure 4 It is a front stereoscopic diagram of the movable part of the optical module and the optical element driving mechanism according to certain features of the utility model.

[0023] Figure 5A side view of an optical module and an optical element driving mechanism according to certain features of the present invention, wherein the housing of the optical element driving mechanism is removed for illustrative purposes.

[0024] Figure 6 According to certain features of the present invention, a side view of an optical module and an optical element driving mechanism in a first position, wherein the housing of the optical element driving mechanism is removed for illustrative purposes.

[0025] Figure 7 According to certain features of the present invention, a side view of an optical module and an optical element driving mechanism in a second position, wherein the housing of the optical element driving mechanism is removed for illustrative purposes.

[0026] Figure 8 The present invention is a front perspective view of an optical element driving mechanism according to certain features of the present invention.

[0027] Fig. 9 According to another feature of the present invention, the present invention is a front perspective view of another optical element driving mechanism, wherein the housing of the optical element driving mechanism is shown with transparent dotted lines for illustrative purposes.

[0028] The reference numerals are as follows:

[0029] 1: Optical element drive mechanism

[0030] 1': Optical element driving mechanism

[0031] 2: Optical module

[0032] 2': Optical module

[0033] 21: Circuit components

[0034] 21': Circuit components

[0035] 100: Activities Department

[0036] 110:Contact Department

[0037] 120: Rotation axis

[0038] 130:Rounded Corners

[0039] 200:Fixed part

[0040] 210: Shell

[0041] 220: Base

[0042] 222: Accommodation

[0043] 224: First slot

[0044] 226: Second slot

[0045] 230: Circuit assembly

[0046] 240: Bottom plate

[0047] 300: Drive components

[0048] 310: First driving unit

[0049] 312: first magnetic element

[0050] 314: First coil

[0051] 320: Second driving unit

[0052] 322: Second magnetic element

[0053] 324: Second coil

[0054] 400: Boot component

[0055] 410: Guiding the subject

[0056] 411: Bump

[0057] 412: Bridge section

[0058] 420: first sliding axis

[0059] 430: Second sliding shaft

[0060] 500:Sensing component

[0061] 600: Pressure components

[0062] L1: First axis

[0063] L2: Second axis

[0064] L3: The third axis

[0065] R1: Radius

[0066] D1: First Dimension

[0067] D2: The Second Dimension

[0068] θ1: first angle

[0069] θ2: Second angle

[0070] O: Center axis of the optical module

[0071] X,Y,Z: axis DETAILED DESCRIPTION

[0072] Various embodiments are described with reference to the accompanying drawings, and similar reference symbols are used to designate similar or equivalent elements throughout the accompanying drawings. The accompanying drawings are not drawn to scale, and the accompanying drawings are provided only to show the characteristics and features of the utility model. It should be understood that many specific details, relationships and methods are set forth to provide a comprehensive understanding. However, it will be easy for those skilled in the art to think that various embodiments can be practiced without one or more specific details or in other methods. In some cases, for illustrative purposes, known structures or operations are not shown in detail. Various embodiments are not limited to the display order of actions or events, as some actions can occur in different orders and / or simultaneously with other actions or events. In addition, not all of the actions or events shown are required for implementing certain features and characteristics of the utility model.

[0073] For purposes of this embodiment, the singular includes the plural and vice versa unless expressly stated otherwise. The term "including" means "including, but not limited to." In addition, approximate words such as "about," "almost," "substantially," and "approximately," and the like, may mean, for example, "at," "near," "nearly at," "within 3-5% of," "within acceptable manufacturing tolerances," or any logical combination thereof. Additionally, the terms "vertical" or "horizontal" are intended to further include "within 3-5%" of the vertical or horizontal direction, respectively. In addition, directional words such as "top," "bottom," "left," "right," "above," and "below" are intended to be relative to equivalent directions depicted in reference illustrations; to be understood from the context of the referenced object or element, such as from a common position of the object or element; or other descriptions thereof.

[0074] The utility model relates to an optical element driving mechanism, which has a guide component, and the guide component is driven by the driving component to drive the movable part and the optical module, so as to adjust the photographic angle of the optical module to meet different external photographic requirements. The optical element driving mechanism capable of adjusting the photographic angle of the optical module can be applied to the front lens of a notebook computer, for example.

[0075] Please refer to Figure 1 , Figure 2 ,as well as Figure 3 , Figure 1 According to certain features of the present invention, a front perspective view of an optical module 2 and an optical element driving mechanism 1 is shown. Figure 2This is a front perspective view of an optical module 2 and an optical element driving mechanism 1 according to certain features of the present invention, wherein the housing 210 of the optical element driving mechanism 1 is removed for illustrative purposes. Figure 3 It is an exploded perspective view of the optical module 2 and the optical element driving mechanism 1 according to certain features of the present utility model.

[0076] The optical element driving mechanism 1 includes a movable part 100, a fixed part 200, a driving assembly 300, a guiding assembly 400, a sensing assembly 500, and a pressure assembly 600. The optical element driving mechanism 1 has a long strip structure extending along a first axis L1. The movable part 100 is used to connect an optical module 2. The optical module 2 can be an optical imaging device such as a lens. The movable part 100 can move relative to the fixed part 200. The driving assembly 300 is used to drive the movable part 100 to move relative to the fixed part 200. The guiding assembly 400 can move relative to the movable part 100 and the fixed part 200. In detail, the guiding assembly 400 can perform translational movement relative to the fixed part 200, and the guiding assembly 400 can perform translational and rotational movement relative to the movable part 100. The relative movement of the guiding assembly 400, the movable part 100, and the fixed part 200 will be described in detail below. The sensing assembly 500 is used to sense the movement of the guiding assembly 400 relative to the fixed part 200.

[0077] Please refer to the following Figure 3 as well as Figure 4 . Figure 4 The present invention is a perspective view of an optical module 2 and a movable portion 100 of an optical element driving mechanism 1 according to certain features of the present invention. As shown in the figure, the movable portion 100 is fixedly connected to the optical module 2 (for example, by gluing). The movable portion 100 has a contact portion 110 and a rotation axis 120. The contact portion 110 has a rounded corner 130. The rounded corner 130 has a radius R1 (see Figure 4 as well as Figure 5 ) is about 0.1 mm. The contact portion 110 contacts the guide assembly 400, so that the guide assembly 400 guides the movement of the movable portion 100. The detailed movement process will be described below with respect to Figures 5 to 7 Description. The rotating shaft 120 is rotatably fixed to a base 220 of the fixed part 200, and the rotating shaft 120 can drive the movable part 100 to rotate around a second axis L2 of the rotating shaft 120. The rotating shaft 120 can have magnetic conductivity, and a bottom plate 240 of the fixed part 200 located below it can also have magnetic conductivity. The magnetic conductivity between the rotating shaft 120 and the bottom plate 240 makes them more tightly connected in structure, and has a more stable structure.

[0078] The pressure assembly 600 is located on the contact portion 110 of the movable portion 100. The pressure assembly 600 generates a pressure to make the movable portion 100 close to the guide assembly 400. The pressure makes the contact portion 110 contact a bump 411 of the guide assembly 400. The pressure assembly 600 may have magnetic conductivity, corresponding to the driving assembly 300.

[0079] Please refer to the following Figure 3 The fixing part 200 includes a housing 210, a base 220, a circuit assembly 230, and a bottom plate 240. The base 220 has a receiving portion 222, a first groove 224, and a second groove 226. The receiving portion 222 can receive the rotating shaft 120. The first groove 224 and the second groove 226 can respectively receive a first sliding shaft 420 and a second sliding shaft 430 of the guide assembly 400. The circuit assembly 230 has a circuit element 232 (see Figure 8 ), electrically connected to the optical module 2 and the driving assembly 300. The bottom plate 240 may have a magnetic conductive material, corresponding to the driving assembly 300 and the rotating shaft 120. The optical module 2 is not in direct contact with the fixing portion 200.

[0080] Please refer to the following Figure 3 as well as Figure 5 The driving component 300 includes a first driving part 310 and a second driving part 320. The first driving part 310 includes a first magnetic element 312 and a first coil 314, and the first magnetic element 312 corresponds to the first coil 314. The second driving part 320 includes a second magnetic element 322 and a second coil 324. The second magnetic element 322 corresponds to the second coil 324. The first magnetic element 312 and the second magnetic element 322 are fixedly disposed on the guide body 410 of the guide component 400, and the first coil 314 and the second coil 324 are fixedly disposed on the circuit component 230 of the fixed part 200.

[0081] The electromagnetic driving force generated between the first magnetic element 312 and the first coil 314 of the first driving part 310 and the second magnetic element 322 and the second coil 324 of the second driving part 320 can drive the guide component 400 to move relative to the fixing part 200. The pressure component 600 with magnetic conductivity and the bottom plate 240 of the fixing part 200 correspond to the first magnetic element 312. The first driving part 310 and the second driving part 320 are arranged along the first axis L1. Along a third axis L3 (see FIG. 2 ) perpendicular to the first axis L1 Figure 3 ) when observed, the optical module 2 is located between the first driving unit 310 and the second driving unit 320.

[0082] The guide assembly 400 includes a guide body 410, a first sliding shaft 420, and a second sliding shaft 430. The guide body 410 includes a protrusion 411 and a bridge portion 412. The protrusion 411 corresponds to the contact portion 110 of the movable portion 100, and the contact portion 110 contacts the protrusion 411. The pressure assembly 600 on the contact portion 110 is attracted by the magnetic attraction force of the first magnetic element 312 to maintain the contact between the contact portion 110 and the protrusion 411. The bridge portion 420 limits the movement of the movable portion 100 by blocking the rotating shaft 120 (which will be described below with respect to Figure 6 to Figure 7 Detailed description). The first sliding shaft 420 and the second sliding shaft 430 are respectively received in the first groove 224 and the second groove 226 of the base 220. When the guide assembly 400 is driven by the driving assembly 300 to move, the first sliding shaft 420 and the second sliding shaft 430 are driven to slide in the first groove 224 and the second groove 226 of the base 220 respectively.

[0083] The driving assembly 300 drives the guiding assembly 400 to move in a first dimension D1 . The guiding assembly 400 guides the movable portion 100 to move relative to the fixed portion 200 in a second dimension D2 .

[0084] The first dimension D1 is different from the second dimension D2. The first dimension D1 is the movement on the first axis L1. The second dimension D2 is the rotation around the second axis L2. The first axis L1 and the second axis L2 are perpendicular to each other. The first axis L1, the second axis L2 and the third axis L3 are perpendicular to each other.

[0085] When viewed along the third axis L3, the protrusion 411 at least partially overlaps with the first driving unit 310. When viewed along the third axis L3, the protrusion 411 at least partially overlaps with the sensing component 500, and the pressure component 600 at least partially overlaps with the first driving unit 310.

[0086] The sensing component 500 is disposed on the circuit component 230, and the sensing component 500 is surrounded by the first coil 314. This configuration can fully utilize the space, so that the volume of the entire optical element driving mechanism 1 can be miniaturized. A sensing signal output by the sensing component 500 corresponds to the position relationship of the movable part 100 relative to the fixed part 200. The sensing component 500 can share the first magnetic element 312 with the first coil 314. The sensing component 500 can convert the change of the magnetic field of the sensed first magnetic element 312 into the change of the output voltage.

[0087] In detail, the sensing component 500 can further convert the sensed change in the magnetic field of the first magnetic element 312 (the movement of the guide component 400) into the rotation angle of the movable part 100. For example, a preset information measured by an external device can be read, and the preset information includes the position relationship of the movable part 100 relative to the fixed part 200 corresponding to the sensing signal output by the sensing component 500, so as to perform rotation correction of the movable part 100.

[0088] Next, please refer to Figures 5 to 7 .exist Figure 5 In the embodiment, the optical element driving mechanism 1 is located at an initial position. Figure 6 According to certain features of the present invention, the optical module 2 and the optical element driving mechanism 1 are shown in a side view at a first position, wherein the housing 210 of the optical element driving mechanism 1 is removed for illustrative purposes. Figure 7 The side view of the optical module 2 and the optical element driving mechanism 1 in the second position according to certain features of the present invention, wherein the housing 210 of the optical element driving mechanism 1 is removed for illustrative purposes. The electromagnetic driving force generated between the first magnetic element 312 and the first coil 314 of the first driving part 310 and the second magnetic element 322 and the second coil 324 of the second driving part 320 can drive the guide assembly 400 to move in the first dimension D1 (along the first axis L1) relative to the fixed part 200, and the first sliding shaft 420 and the second sliding shaft 430 respectively move in the first groove 224 and the second groove 226 of the base 220 in the first dimension D1 (along the first axis L1). Due to the movement of the guide assembly 400 in the first dimension D1, the protrusion 411 pushes the contact portion 110 of the movable part 100 to move.

[0089] The first magnetic element 312 and the second magnetic element 322 on the guide assembly 400 are magnetically conductive with the bottom plate 240, so that the guide assembly 400 is fixedly adsorbed on the base 220, thereby limiting the movement of the guide assembly 400 along the first dimension D1 (first axis L1). The bridge portion 412 of the guide assembly 400 further limits the movement of the rotation axis 120 in the Z-axis direction, so when the protrusion 411 pushes the contact portion 110 of the movable part 100, the movable part 100 rotates around the second axis L2 of the rotation axis 120 (movement in the second dimension D2). When viewed along the third axis L3, the bridge portion 412 overlaps the rotation axis 120.

[0090] Please refer to the following Figure 6 , the optical module 2 and the optical element driving mechanism 1 are located at the first position. Figure 5Compared with the initial position, the guide assembly 400 moves toward the negative X-axis direction. After the projection 411 of the guide assembly 400 pushes the rotating shaft 120 of the movable part 100 to rotate, the movable part 100 and the optical module 2 are tilted, and a central axis O of the optical module 2 forms a first angle θ1 with the third axis L3.

[0091] Please refer to the following Figure 7 , the optical module 2 and the optical element driving mechanism 1 are located at the second position. Figure 5 Compared with the initial position, the guide assembly 400 moves toward the positive X-axis direction. After the projection 411 of the guide assembly 400 pushes the rotating shaft 120 of the movable part 100 to rotate, the movable part 100 and the optical module 2 are tilted, and a central axis O of the optical module 2 forms a second angle θ2 with the third axis L3.

[0092] In some embodiments, a material of the movable part 100 and a material of the guide component 400 may have different Young's moduli. In other embodiments, the material of the movable part 100 and the material of the guide component 400 have the same Young's moduli, which is smaller and is a softer material, such as plastic or ceramic.

[0093] Please refer to the following Figure 8 . Figure 8 1 is a front perspective view of an optical element driving mechanism 1 according to certain features of the present invention. A circuit element 21 of the optical module 2 is electrically connected to the optical module 2 and the driving assembly 300. In some embodiments, the circuit element 21 may extend from the optical module 2 to the circuit assembly 230 in a plane perpendicular to the second axis L2, such as Figure 8 The circuit element 21 extends from the long side of the optical module 2 to connect to the circuit assembly 230, so that the optical module 2 has a shorter design length, which can meet the needs of various mechanisms for shorter optical modules and achieve mechanism miniaturization.

[0094] Please refer to the following Fig. 9 . Fig. 9 1 is a front perspective view of another optical element driving mechanism 1' according to certain features of the present invention, wherein the housing 210 of the optical element driving mechanism 1' is shown in transparent dashed lines for illustrative purposes. Similar elements are represented by the same element symbols. In other embodiments, the circuit element 21' may extend from the optical module 2' to the circuit assembly 230 in a plane perpendicular to the third axis L3, such as Fig. 9 The circuit element 21 extends from the short side of the optical module 2' to connect to the circuit assembly 230, so that the optical module 2' can have a narrower design width, which can meet the needs of various mechanisms for narrower width optical modules and achieve mechanism miniaturization.

[0095] In summary, the utility model provides an optical element driving mechanism, which includes a movable part, a fixed part, a guide component, a driving component, and a sensing component. The guide component contacts the movable part, and the movement of the guide component drives the movable part to move relative to the fixed part. In this way, the photographic angle of the optical module can be adjusted to adapt to different external photographic requirements, and miniaturization can also be achieved. At the same time, the structure in which the magnetically conductive elements attract each other can also effectively reduce operational errors caused by mutual interference during operation, stabilize the internal structure, and provide more stable and better optical quality.

[0096] Although embodiments of the present invention have been shown and described with respect to one or more embodiments, equivalents and modifications will occur to those skilled in the art after reading and understanding this specification and the accompanying drawings. In addition, although a particular feature of the present invention may have been described with respect to only one embodiment of several embodiments, for any given or specific application, such feature may be combined with one or more other features of other embodiments as may be required and advantageous.

[0097] Although various embodiments of the present invention have been described above, it should be understood that they are presented only in an exemplary and non-limiting manner. Various changes can be made to the embodiments of the present invention described herein without departing from the spirit or scope of the present invention. Therefore, the breadth and scope of the present invention should not be limited by any of the above embodiments. On the contrary, the scope of the present invention should be defined according to the following claims and their equivalents.

[0098] The terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The singular forms "a, an", and "the" used herein are intended to include plural forms as well, unless the context clearly indicates otherwise. In addition, the terms "including, includes", "having, has, with" or their variations used in the embodiments and / or claims are intended to be included in a manner similar to the word "comprising".

Claims

1. An optical element driving mechanism, characterized in that: include: A movable part, used for connecting an optical module; a fixed portion, wherein the movable portion is movable relative to the fixed portion; a driving assembly for driving the movable portion to move relative to the fixed portion; as well as A guide assembly is movable relative to the movable portion and the fixed portion, wherein The driving component drives the guiding component to move in a first dimension; The guide assembly guides the movable portion to move relative to the fixed portion in a second dimension; The first dimension and the second dimension are different.

2. The optical element driving mechanism according to claim 1, wherein: in: The first dimension is movement on a first axis; The second dimension is a rotation around a second axis; The first axis and the second axis are perpendicular to each other; The first axis, the second axis and a third axis are perpendicular to each other; and The optical element driving mechanism has a long strip structure and extends along the first axis.

3. The optical element driving mechanism according to claim 2, wherein: The driving assembly includes a first driving part and a second driving part, and the first driving part includes: a first coil; and a first magnetic element corresponding to the first coil; The second driving unit includes: a second coil; and a second magnetic element corresponding to the second coil; The first driving part and the second driving part are arranged along the first axis; When viewed along the third axis, the optical module is located between the first driving part and the second driving part.

4. The optical element driving mechanism according to claim 3, wherein: The movable portion further comprises a contact portion, the contact portion having a rounded corner, and a radius of the rounded corner is 0.1 mm; The guide assembly includes a protrusion corresponding to the contact portion, and the contact portion contacts the protrusion; When viewed along the third axis, the protrusion at least partially overlaps with the first driving portion.

5. The optical element driving mechanism according to claim 4, characterized in that: It also includes a sensing component and a pressure component. The sensing component is used to sense the movement of the guiding component relative to the fixing portion; The pressure component is used to generate a pressure to make the movable part close to the guide component, and the pressure makes the contact part contact the protrusion. The pressure component has magnetic conductivity and corresponds to the first magnetic element. When viewed along the third axis, the protrusion at least partially overlaps with the sensing component, and the pressure component at least partially overlaps with the first driving portion.

6. The optical element driving mechanism according to claim 5, characterized in that: A sensing signal output by the sensing component corresponds to the position relationship of the movable part relative to the fixed part.

7. The optical element driving mechanism according to claim 2, wherein: The guide assembly has a bridge portion, the movable portion has a rotation axis, and the bridge portion limits the movement of the movable portion by blocking the rotation axis. When viewed along the third axis, the bridge portion overlaps the rotation axis.

8. The optical element driving mechanism according to claim 7, wherein: The fixing part has a bottom plate which is magnetically conductive and corresponds to the rotating shaft.

9. The optical element driving mechanism according to claim 2, wherein: A material of the movable portion and a material of the guide component have different Young's moduli.

10. The optical element driving mechanism according to claim 2, wherein: A material of the movable part and a material of the guide component have the same Young's modulus, and the materials are plastic or ceramic.

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