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 an optical element. The movable part can move relative to the fixed part. The driving assembly drives the optical element to move relative to the fixing part.

Description

Technical Field

[0001] The present invention relates to an optical element driving mechanism, and in particular to an optical element driving mechanism having a driving component, wherein the driving component comprises a plurality of magnetic elements and a coil. 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, an optical element driving mechanism is needed that allows the optical photography focal length to be adjusted to meet different external photography requirements. At the same time, it can reduce operational errors caused by interference with magnetic elements during operation, stabilize the internal structure, and provide more stable and better optical quality. Summary of the invention

[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 this content. This 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 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 present invention, any or all drawings, and each claim.

[0005] According to certain features of the present disclosure, an optical element driving mechanism is provided, including a movable part, a fixed part and a driving assembly, wherein the movable part is used to connect an optical element and can move relative to the fixed part, and the driving assembly is used to drive the optical element to move relative to the fixed part.

[0006] According to certain features of the present disclosure, the driving component includes a first coil and a first magnetic element. The first coil includes a first section and a second section, and has a long strip structure, wherein the second section is parallel to the first section. The first magnetic element has a first magnetic element surface, and the first magnetic element surface faces the first coil. The first coil and the first magnetic element are used to drive the movable part to move along a first axis, and the first axis is perpendicular to the surface of the first magnetic element. When observed along a direction perpendicular to the surface of the first magnetic element, the shortest distance between the first section and the center of the first magnetic element is different from the shortest distance between the second section and the center of the first magnetic element.

[0007] According to certain features of the present disclosure, the drive assembly further includes a second coil and a second magnetic element. The second coil includes a third section and a fourth section, and has a long strip structure, wherein the third section is parallel to the fourth section. The second magnetic element has a second magnetic element surface, and the second magnetic element surface faces the second coil. When observed in a direction perpendicular to the second magnetic element surface, the shortest distance between the third section and the center of the second magnetic element is different from the shortest distance between the fourth section and the center of the second magnetic element.

[0008] According to certain features of the present disclosure, the first magnetic element and the second magnetic element are arranged along a second axis, the second axis is perpendicular to the first axis, the surface of the first magnetic element and the surface of the second magnetic element face the same direction, and the first section is parallel to the third section.

[0009] According to certain features of the present disclosure, when observed in a direction perpendicular to the surface of the first magnetic element, the second section is located between the first section and the third section, the shortest distance between the first section and the center of the first magnetic element is greater than the shortest distance between the second section and the center of the first magnetic element, and the shortest distance between the third section and the center of the second magnetic element is less than the shortest distance between the fourth section and the center of the second magnetic element.

[0010] According to certain features of the present disclosure, the driving assembly further includes a third coil and a third magnetic element, the third magnetic element having a third magnetic element surface, the third magnetic element surface facing the third coil. The third coil and the third magnetic element are used to drive the movable part to move along a third axis, the third axis is parallel to the third magnetic element surface. The first axis and the third axis are perpendicular to each other. The first axis is parallel to the third magnetic element surface. The third axis is parallel to the first magnetic element surface.

[0011] According to certain features of the present disclosure, the drive assembly further includes a fourth coil corresponding to the first magnetic element and the second magnetic element. When viewed in a direction perpendicular to the surface of the first magnetic element, the fourth coil and the first magnetic element at least partially overlap. The fourth coil and the first magnetic element are used to drive the optical element to move along a fourth axis.

[0012] According to certain features of the present disclosure, when viewed in a direction perpendicular to the surface of the first magnetic element, the first coil at least partially overlaps with the fourth coil, and the second coil at least partially overlaps with the fourth coil.

[0013] According to certain features of the present disclosure, the optical element driving mechanism further includes a position sensing component for sensing the movement of the optical element. The position sensing component has a first position sensing element for sensing the movement of the optical element along a fourth axis. The first position sensing element calculates the movement of the optical element by sensing the magnetic field of the third magnetic element.

[0014] According to certain features of the present disclosure, the position sensing assembly further includes a second position sensing element and a third position sensing element. The second position sensing element corresponds to the second magnetic element and is used to sense the movement of the optical element on the first axis. The third position sensing element corresponds to the third magnetic element and is used to sense the movement of the optical element on the third axis.

[0015] The beneficial effect of the present invention is that the present invention provides an optical element driving mechanism, which includes a movable part, a fixed part, a driving component, a position sensing component and an electronic component. The movement of the driving component drives the movable part to move relative to the fixed part. Thus, the position of the optical element can be adjusted to meet different external photography requirements. At the same time, the multiple sets of coils and magnetic elements of the driving component can also effectively provide sufficient driving force, bear the weight of the movable part, stabilize the internal structure, reduce the operating errors of the driving component during operation, and provide more stable and better optical quality.

[0016] The above summary of the invention is not intended to present every embodiment or every feature of the present invention. Rather, the foregoing summary of the invention merely provides examples of some of the novel features and characteristics set forth herein. The above features and advantages and other features and advantages of the present invention will become apparent from the following detailed description of representative embodiments and modes for carrying out the present invention when taken in conjunction with the accompanying drawings and the appended claims. Additional features of the present invention will be apparent to those skilled in the art in view of the detailed description of various embodiments provided below with reference to the accompanying drawings, symbolically briefly illustrated. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention and its advantages will be better understood from the following description of exemplary embodiments in conjunction with reference to the accompanying drawings, which illustrate exemplary embodiments only and therefore should not be considered as limiting the various embodiments or the claims.

[0018] Figure 1 A front perspective view of an optical element driving mechanism and an optical element according to certain features of the present disclosure.

[0019] Figure 2An exploded perspective view of an optical element driving mechanism and an optical element according to certain features of the present disclosure.

[0020] Figure 3 According to certain features of the present disclosure, the optical element driving mechanism and the optical element along Figure 1 Sectional view along line AA.

[0021] Figure 4 A bottom view of an optical element driving mechanism and an optical element according to certain features of the present disclosure, with fixed portions removed and movable portions shown in phantom for illustrative purposes.

[0022] The reference numerals are as follows:

[0023] 1: Optical element drive mechanism

[0024] 10: Optical components

[0025] 100: Activities Department

[0026] 110: First Activity Department

[0027] 120: Second Activity Department

[0028] 130: Guide rod

[0029] 140:Frame

[0030] 150, 160: Magnetic plate

[0031] 200:Fixed part

[0032] 210: Shell

[0033] 220: Base

[0034] 300: Drive components

[0035] 305: Tablet

[0036] 310: First coil

[0037] 311: The first section

[0038] 312: The second section

[0039] 320: first magnetic element

[0040] 321: Surface of first magnetic element

[0041] 330: Second coil

[0042] 331: The third section

[0043] 332: The fourth section

[0044] 340: Second magnetic element

[0045] 341: second magnetic element surface

[0046] 350: The third coil

[0047] 360: The third magnetic element

[0048] 361: Surface of the third magnetic element

[0049] 370: Fourth coil

[0050] 400: Position sensing component

[0051] 410: first position sensing element

[0052] 420: second position sensing element

[0053] 430: third position sensing element

[0054] 500: Circuit components

[0055] 510: Elastic element

[0056] 520: Connecting element

[0057] 530: Circuit components

[0058] 540: Control circuit

[0059] O1: First axis

[0060] O2: Second axis

[0061] O3: The Third Axis

[0062] O4: The Fourth Axis

[0063] d1: The shortest distance between the first section and the center of the first magnetic element

[0064] d2: the shortest distance between the second section and the center of the first magnetic element

[0065] d3: The shortest distance between the third section and the center of the second magnetic element

[0066] d4: the shortest distance between the fourth section and the center of the second magnetic element DETAILED DESCRIPTION

[0067] 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 present disclosure. It should be understood that many specific details, relationships and methods are set forth to provide a comprehensive understanding. However, it will be easily appreciated by those skilled in the art 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 order in which actions or events are displayed, 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 present disclosure.

[0068] 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.

[0069] It is understood that although the terms "first", "second", etc. may be used herein to describe various elements, layers and / or parts, these elements, layers and / or parts should not be limited by these terms, and these terms are only used to distinguish different elements, layers and / or parts. Therefore, a first element, layer and / or part discussed below may be referred to as a second element, layer and / or part without departing from the teachings of some embodiments of the present disclosure. In addition, for the sake of brevity, the terms "first", "second", etc. may not be used in the specification to distinguish different elements. Without violating the scope defined by the attached claims, the first element and / or second element recorded in the claims may be interpreted as any element that conforms to the description in the specification.

[0070] It should be noted that the technical solutions provided in the following different embodiments can be replaced, combined or mixed with each other to form another embodiment without violating the spirit of the present disclosure.

[0071] The present disclosure relates to an optical element driving mechanism, wherein a driving component thereof has a multiple array coil and a magnetic element, which drives a movable part and an optical element to flexibly move in various directions, thereby adjusting the photographic imaging of the optical element driving mechanism to meet different photographic requirements.

[0072] First please see Figure 1 , Figure 1 The present invention is a front perspective view of an optical element driving mechanism 1 and an optical element 10 according to certain features of the present invention.

[0073] See also Figure 2 . Figure 2 The present invention is an exploded perspective view of an optical element driving mechanism 1 and an optical element 10 according to certain features of the present invention. The optical element driving mechanism 1 includes a movable portion 100, a fixed portion 200, a driving component 300, a position sensing component 400, and a circuit component 500. The movable portion 100 is connected to the optical element 10, and the optical element 10 can be, for example, an optical lens. The movable portion 100 can move relative to the fixed portion 200, and the driving component 300 drives the optical element 10 to move relative to the fixed portion 200. The position sensing component 400 is used to sense the movement of the optical element 10.

[0074] The movable portion 100 includes a first movable portion 110 , a second movable portion 120 , two guide rods 130 , a frame 140 , and two magnetic conductive plates 150 and 160 .

[0075] The movable part 100 accommodates the optical element 10. A circuit element 530 of the circuit assembly 500 is embedded between the first movable part 110 and the second movable part 120. The first movable part 110 contacts the frame 140 through two guide rods 130, so that the first movable part 110, the second movable part 120, and the optical element 10 can move relative to the frame 140 (as described in detail below with respect to the driving assembly 300). Two magnetic conductive plates 150 and 160 are respectively located above a first magnetic element 320 and a third magnetic element 360 of the driving assembly 300 to prevent magnetic field interference between multiple sets of magnetic elements.

[0076] The fixing portion 200 includes a housing 210 and a base 220 . The housing 210 and the base 220 are fixedly connected to accommodate other components of the optical element driving mechanism 1 and the optical element 10 .

[0077] The driving assembly 300 includes two plates 305, two first coils 310, two first magnetic elements 320, two second coils 330, two second magnetic elements 340, a third coil 350, a third magnetic element 360 and two fourth coils 370. The first coil 310 and the second coil 330 are embedded in the plate 305 to form a set of plate coils.

[0078] A first coil 310, a first magnetic element 320, a second coil 330, a second magnetic element 340 and a fourth coil 370 are formed as a group and are respectively disposed on two opposite sides of the movable part 100. The following only describes the arrangement of one side of the movable part 100, and the arrangement of the coils and magnetic elements on the other side is the same.

[0079] The first coil 310 is disposed on the base 220 of the fixing portion 200 , and includes a first section 311 and a second section 312 . The first section 311 and the second section 312 have a long strip structure, and the second section 312 is parallel to the first section 311 .

[0080] The first magnetic element 320 is disposed on the frame 140 and has a first magnetic element surface 321 . The first magnetic element surface 321 faces the first coil 310 .

[0081] Through the electromagnetic driving force generated between the first magnetic element 320 and the first coil 310, the first magnetic element 320 moves relative to the first coil 310, thereby driving the frame 140 to move relative to the base 220, and the frame 140 drives the first movable part 110, the second movable part 120 and the optical element 10 to move. Therefore, through the electromagnetic driving force generated between the first magnetic element 320 and the first coil 310, the movable part 100 can be driven to move relative to the fixed part 200.

[0082] The first coil 310 and the first magnetic element 320 drive the movable part 100 to move along a first axis O1 . The first axis O1 is perpendicular to the first magnetic element surface 321 .

[0083] The second coil 330 is disposed on the base 220 of the fixing portion 200 , and includes a third section 331 and a fourth section 332 . The third section 331 and the fourth section 332 have a long strip structure, and the third section 331 is parallel to the fourth section 332 .

[0084] The second magnetic element 340 is disposed on the frame 140 and has a second magnetic element surface 341 . The second magnetic element surface 341 faces the second coil 330 .

[0085] The first magnetic element 320 and the second magnetic element 340 are arranged along a second axis O2 . The second axis O2 is perpendicular to the first axis. The first magnetic element surface 321 and the second magnetic element surface 341 face the same direction. The first section 311 is parallel to the third section 331 .

[0086] The electromagnetic driving force generated between the second magnetic element 340 and the second coil 330 causes the second magnetic element 340 to move relative to the second coil 330, thereby driving the frame 140 to move relative to the base 220, and the frame 140 drives the first movable part 110, the second movable part 120 and the optical element 10 to move. Therefore, the electromagnetic driving force generated between the second magnetic element 340 and the second coil 330 can drive the movable part 100 to move relative to the fixed part 200 along the first axis O1.

[0087] The third coil 350 is disposed on the base 220 of the fixing portion 200 .

[0088] The third magnetic element 360 is disposed on the frame 140 and has a third magnetic element surface 361 . The third magnetic element surface 361 faces the third coil 350 .

[0089] The electromagnetic driving force generated between the third magnetic element 360 and the third coil 350 causes the third magnetic element 360 to move relative to the third coil 350, thereby driving the frame 140 to move relative to the base 220, and the frame 140 drives the first movable part 110, the second movable part 120 and the optical element 10 to move. Therefore, the electromagnetic driving force generated between the third magnetic element 360 and the third coil 350 can drive the movable part 100 to move relative to the fixed part 200.

[0090] The third coil 350 and the third magnetic element 360 drive the movable portion 100 to move along a third axis O3 . The third axis O3 is parallel to the third magnetic element surface 361 .

[0091] The first axis O1 and the third axis O3 are perpendicular to each other. The first axis O1 is parallel to the third magnetic element surface 361 . The third axis O3 is parallel to the first magnetic element surface 321 .

[0092] The fourth coil 370 is disposed on the first movable portion 110 of the movable portion 100 , corresponding to the first magnetic element 320 and the second magnetic element 340 .

[0093] Through the electromagnetic driving force generated between the first magnetic element 320 and the fourth coil 370, the first magnetic element 320 moves relative to the fourth coil 370, thereby driving the frame 140 to move relative to the base 220, and the frame 140 drives the first movable part 110, the second movable part 120 and the optical element 10 to move. Therefore, through the electromagnetic driving force generated between the first magnetic element 320 and the fourth coil 370, the movable part 100 can be driven to move relative to the fixed part 200.

[0094] The fourth coil 370 and the first magnetic element 320 drive the optical element 10 and the movable part 100 to move along a fourth axis O4. The first movable part 110 contacts the frame 140 through two guide rods 130, so the first movable part 110, the second movable part 120 and the optical element 10 can move relative to the frame 140 along the fourth axis O4.

[0095] See you next Figure 3 . Figure 3 According to certain features of the present disclosure, the optical element driving mechanism and the optical element along Figure 1 Sectional view along line AA.

[0096] When viewed along the first magnetic element surface 321 (ie, when viewed along the second magnetic element surface 341 ), the shortest distance d1 between the first segment 311 and the center of the first magnetic element 320 is different from the shortest distance d2 between the second segment 312 and the center of the first magnetic element 320 .

[0097] When viewed along the first magnetic element surface 321 (ie, viewed along the second magnetic element surface 341 ), the shortest distance d3 between the third section 331 and the center of the second magnetic element 340 is different from the shortest distance d4 between the fourth section 332 and the center of the second magnetic element 340 .

[0098] When viewed along the direction of the first magnetic element surface 321 (that is, when viewed along the direction of the second magnetic element surface 341), the second segment 312 is located between the first segment 311 and the third segment 331, and the shortest distance d1 between the first segment 311 and the center of the first magnetic element 320 is greater than the shortest distance d2 between the second segment 312 and the center of the first magnetic element 320. The shortest distance d3 between the third segment 331 and the center of the second magnetic element 340 is less than the shortest distance d4 between the fourth segment 332 and the center of the second magnetic element 340.

[0099] When viewed along the normal vector direction of the first magnetic element surface 321 or the second magnetic element surface 341, the fourth coil 370 at least partially overlaps the first magnetic element 320. The first coil 310 at least partially overlaps the fourth coil 370, and the second coil 330 at least partially overlaps the fourth coil 370.

[0100] Please continue to refer to Figure 2 as well as Figure 4 . Figure 4 The bottom view of the optical element driving mechanism 1 and the optical element 10 according to certain features of the present disclosure, wherein the fixed portion 200 is removed for illustrative purposes and the movable portion 100 is indicated by dashed lines.

[0101] The position sensing assembly 400 includes a first position sensing element 410 , a second position sensing element 420 and a third position sensing element 430 .

[0102] The first position sensing element 410 is disposed on the second movable portion 120 to sense the movement of the optical element 10 on the fourth axis O4 . The first position sensing element 410 calculates the movement of the optical element 10 by sensing the magnetic field of the third magnetic element 360 .

[0103] The second position sensing element 420 is disposed on the first movable portion 110. Figure 4 As shown, the second position sensing element 420 is embedded in the first movable portion 110 , corresponding to the second magnetic element 340 , and is used to sense the movement of the optical element 10 on the first axis O1 .

[0104] The third position sensing element 430 is disposed on the first movable portion 110. Figure 4 As shown, the third position sensing element 430 is embedded in the first movable portion 110 , corresponding to the third magnetic element 360 , and is used to sense the movement of the optical element 10 on the third axis O3 .

[0105] Please continue to refer to Figure 2 The circuit assembly 500 includes four elastic elements 510 , four connecting elements 520 , a circuit element 530 and a control circuit 540 .

[0106] The position signal sensed by the position sensing component 400 can be transmitted to the control circuit 540 through the circuit element 530 and the elastic element 510 , and the control signal can be transmitted from the control circuit 540 to the driving component 300 through the circuit element 530 , the elastic element 510 and the connecting element 520 .

[0107] In summary, the present invention provides an optical element driving mechanism, which includes a movable part, a fixed part, a driving component, a position sensing component and an electronic component. The movement of the driving component drives the movable part to move relative to the fixed part. Thus, the position of the optical element can be adjusted to meet different external photography requirements. At the same time, the multiple sets of coils and magnetic elements of the driving component can also effectively provide sufficient driving force, bear the weight of the movable part, stabilize the internal structure, reduce the operating errors of the driving component during operation, and provide more stable and better optical quality.

[0108] Although embodiments of the present invention have been shown and described with respect to one or more implementations, equivalents and modifications will occur to those skilled in the art upon reading and understanding this specification and the accompanying drawings. In addition, although a particular feature of the present invention may have been invented with respect to only one of several implementations, for any given or particular application, such feature may be combined with one or more other features of other implementations as may be required and advantageous.

[0109] Although various embodiments of the present invention have been described above, it should be understood that they are presented in an exemplary and non-limiting manner only. Various changes can be made according to the embodiments invented 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-described embodiments. On the contrary, the scope of the present invention should be defined according to the following claims and their equivalents.

[0110] The terms used herein are for the purpose of describing specific embodiments only and are not intended to limit the present invention. As used herein, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. In addition, the terms "including, includes," "having, has, with," or variations thereof 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, comprising: A movable portion, used to connect an optical element; a fixed portion, the movable portion being movable relative to the fixed portion; as well as A driving assembly is used to drive the optical element to move relative to the fixing portion.

2. The optical element driving mechanism as claimed in claim 1, wherein the driving assembly comprises: A first coil, comprising a first section and a second section, and having a long strip structure, wherein the second section is parallel to the first section; as well as A first magnetic element having a first magnetic element surface, the first magnetic element surface facing the first coil; The first coil and the first magnetic element are used to drive the movable part to move along a first axis, and the first axis is perpendicular to the surface of the first magnetic element; When viewed along a direction perpendicular to the surface of the first magnetic element, the shortest distance between the first section and the center of the first magnetic element is different from the shortest distance between the second section and the center of the first magnetic element.

3. The optical element driving mechanism as claimed in claim 2, wherein the driving assembly further comprises: a second coil, comprising a third section and a fourth section, and having a long strip structure, wherein the third section is parallel to the fourth section; as well as A second magnetic element having a second magnetic element surface, the second magnetic element surface facing the second coil; When observed along a direction perpendicular to the surface of the second magnetic element, the shortest distance between the third section and the center of the second magnetic element is different from the shortest distance between the fourth section and the center of the second magnetic element.

4. The optical element driving mechanism according to claim 3, wherein: The first magnetic element and the second magnetic element are arranged along a second axis, and the second axis is perpendicular to the first axis; The first magnetic element surface and the second magnetic element surface face the same direction; The first section is parallel to the third section.

5. The optical element driving mechanism as claimed in claim 3, wherein when viewed along a direction perpendicular to the surface of the first magnetic element: The second section is located between the first section and the third section; The shortest distance between the first section and the center of the first magnetic element is greater than the shortest distance between the second section and the center of the first magnetic element; The shortest distance between the third section and the center of the second magnetic element is smaller than the shortest distance between the fourth section and the center of the second magnetic element.

6. The optical element driving mechanism as claimed in claim 3, wherein the driving assembly further comprises: a third coil; as well as a third magnetic element having a third magnetic element surface, the third magnetic element surface facing the third coil; The third coil and the third magnetic element are used to drive the movable part to move along a third axis, and the third axis is parallel to the surface of the third magnetic element; The first axis and the third axis are perpendicular to each other; The first axis is parallel to the surface of the third magnetic element; The third axis is parallel to the surface of the first magnetic element.

7. The optical element driving mechanism as claimed in claim 6, wherein the driving assembly further comprises: a fourth coil corresponding to the first magnetic element and the second magnetic element; wherein when viewed along a direction perpendicular to the surface of the first magnetic element, the fourth coil at least partially overlaps with the first magnetic element; The fourth coil and the first magnetic element are used to drive the optical element to move along a fourth axis.

8. The optical element driving mechanism as described in claim 7, wherein when viewed along a direction perpendicular to the surface of the first magnetic element, the first coil at least partially overlaps with the fourth coil, and the second coil at least partially overlaps with the fourth coil.

9. The optical element driving mechanism as claimed in claim 7, further comprising a position sensing component for sensing the movement of the optical element; The position sensing assembly has a first position sensing element for sensing the movement of the optical element along the fourth axis; The first position sensing element calculates the movement of the optical element by sensing the magnetic field of the third magnetic element.

10. The optical element driving mechanism as claimed in claim 9, wherein the position sensing component further comprises: a second position sensing element, corresponding to the second magnetic element, for sensing the movement of the optical element along the first axis; as well as A third position sensing element corresponds to the third magnetic element and is used to sense the movement of the optical element along the third axis.

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