Optical element driving mechanism

Abstract

The present disclosure provides an optical element driving mechanism. The optical element driving mechanism includes a first movable part, a fixed assembly, a first driving assembly, a second movable part, a second driving assembly, and a locking assembly. The first movable part is configured to connect an optical element. The first movable part is movable relative to the fixed assembly. The first driving assembly is configured to drive the first movable part to move relative to the fixed assembly. The second driving assembly is configured to drive the second movable part to move relative to the first movable part and the fixed assembly. The locking assembly is configured to fix the first movable part relative to the fixed assembly at a first position.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to an optical element driving mechanism, and more particularly to an optical element driving mechanism with a shutter structure. BACKGROUND

[0002] With the development of technology, nowadays many electronic devices (e.g. smart phones or digital cameras) have the function of taking pictures or recording videos. These electronic devices are increasingly popular and are developing towards convenient and thin designs to provide users with more choices. SUMMARY

[0003] The present disclosure aims to provide an optical element driving mechanism to solve at least one of the above problems.

[0004] The present disclosure provides an optical element driving mechanism, comprising a first movable part, a fixed assembly, a first driving assembly, a second movable part, a second driving assembly, and a locking assembly. The first movable part is configured to connect an optical element. The first movable part is movable relative to the fixed assembly. The first driving assembly is configured to drive the first movable part to move relative to the fixed assembly. The second driving assembly is configured to drive the second movable part to move relative to the first movable part and the fixed assembly. The locking assembly is configured to fix the first movable part relative to the fixed assembly at a first position.

[0005] According to some embodiments of the present disclosure, the optical element driving mechanism further comprises a first opening configured to pass an external light along a first axis. The first driving assembly is located between the second driving assembly and the first opening when viewed along the first axis. The optical element driving mechanism has an elongated structure extending along a second axis when viewed along the first axis, and the first opening, the first driving assembly, and the second driving assembly are arranged along the second axis. The first axis is not parallel to the second axis. The second axis is perpendicular to the first axis. The optical element does not overlap at least a portion of the first opening when viewed along the first axis and when the first movable part is at the first position. The optical element overlaps at least a portion of the first opening when viewed along the first axis and when the first movable part is at a second position. The first driving assembly overlaps at least a portion of the second driving assembly when viewed along the second axis.

[0006] According to some embodiments of the present disclosure, the first driving assembly includes a first coil, a first magnetic element corresponding to the first coil, and a first magnetic conductive element having a magnetic conductive material and having a long strip shape. A first winding axis of the first coil is parallel to an extension direction of the first magnetic conductive element. The first driving assembly is configured to drive the first movable part to move relative to the fixed assembly along a second axis. The second driving assembly includes a second coil, a second magnetic element corresponding to the second coil, and a second magnetic conductive element having a magnetic conductive material and having a long strip shape. A second winding axis of the second coil is not parallel to an extension direction of the second magnetic conductive element. In the second axis, a maximum dimension of the second magnetic conductive element is smaller than a maximum dimension of the second magnetic element. In the second axis, a maximum dimension of the second magnetic conductive element is smaller than a maximum dimension of the second coil. The first winding axis is not parallel to the second winding axis. An arrangement direction of the first coil and the first magnetic element is parallel to an arrangement direction of the second coil and the second magnetic element. The extension direction of the first magnetic conductive element is not parallel to the extension direction of the second magnetic conductive element.

[0007] According to some embodiments of the present disclosure, the optical element driving mechanism further includes a guiding assembly configured to guide the second movable part to move along a third axis. The guiding assembly includes a first guiding element having a long strip shape and extending along the third axis, a second guiding element having a long strip shape and extending along the third axis, a first guiding structure fixedly arranged with the second movable part and configured to correspond to the first guiding element, and a second guiding structure fixedly arranged with the second movable part and configured to correspond to the second guiding element. When viewed along the second axis, the second magnetic element overlaps at least a portion of the first guiding element. When viewed along the second axis, the second magnetic element overlaps at least a portion of the second guiding element. When viewed along the second axis, the second coil does not overlap the first guiding element. When viewed along the second axis, the second coil does not overlap the second guiding element. The first guiding structure has a closed perforated structure. When viewed along the third axis, the second guiding structure has a recessed structure extending along the second axis. The guiding assembly further includes a first elastic element configured to apply a first pre-pressing force to the second movable part. A direction of the first pre-pressing force is parallel to the third axis. The first elastic element is arranged at the first guiding element.

[0008] According to some embodiments of the present disclosure, the optical element driving mechanism further comprises a second elastic element disposed between the first movable part and the fixed assembly. The second elastic element comprises: a first portion having an elongated structure. A second portion having an elongated structure, and the second portion is parallel and separated from the first portion. A first connecting portion, the first portion connects the second portion via the first connecting portion. A second connecting portion, the first portion connects the second portion via the second connecting portion. And a contact portion protruding from the second portion. The first portion, the second portion, the first connecting portion and the second connecting portion form a ring-shaped closed structure. On the second axis, the maximum size of the first portion is smaller than the maximum size of the second portion. The second elastic element is configured to limit the movement range of the first movable part relative to the second movable part. The second elastic element has a different material from the first elastic element. The second elastic element has a non-metal material. The first elastic element has a metal material. The shortest distance between the first portion and the first movable part is smaller than the shortest distance between the second portion and the first movable part. When the first movable part is located at a first limit position relative to the fixed assembly, the first portion directly contacts the second portion.

[0009] According to some embodiments of the present disclosure, the locking assembly comprises: a first locking element having a first hook structure. And a second locking element having a second hook structure corresponding to the first hook structure. The second locking element further comprises a third hook structure corresponding to a fourth hook structure of the first locking element. When the first movable part is located at the first position, the shortest distance between the first locking element and the second hook structure is smaller than the shortest distance between the first locking element and the third hook structure. When the first movable part is located at the second position, the shortest distance between the first locking element and the second hook structure is greater than the shortest distance between the first locking element and the third hook structure. The first hook structure comprises a first surface having a planar structure, parallel to the first axis. The first surface is not parallel to the second axis. The first surface is not parallel to the third axis. The second hook structure comprises a second surface having a planar structure, parallel to the first axis. The second surface is not parallel to the second axis. The second surface is not parallel to the third axis. The third hook structure comprises a third surface having a planar structure, parallel to the first axis. The third surface is not parallel to the second axis. The third surface is not parallel to the third axis. The fourth hook structure comprises a fourth surface having a planar structure, parallel to the first axis. The fourth surface is not parallel to the second axis. The fourth surface is not parallel to the third axis. The first locking element is fixedly disposed on the first movable part. The first locking element has an integrated structure with the optical element. The second locking element is fixedly disposed on the second movable part. The second locking element has an integrated structure with a second body of the second movable part. The second locking element protrudes from the second body along the first axis.

[0010] According to some embodiments of the present disclosure, the second movable part is movable relative to the fixed assembly within a second range of motion. The fixed assembly includes a housing and a base. The base is configured to accommodate the second drive assembly. The housing has a plate structure and is perpendicular to the first axis. The housing has an accommodation opening configured to accommodate a portion of the second locking element. The housing has a first housing surface facing the optical element. The housing has a second housing surface facing in an opposite direction from the first housing surface. The second locking element overlaps at least a portion of the first housing surface when the second movable part is at any position within the second range of motion and when viewed along the second axis or the third axis. The second locking element does not overlap the second housing surface when the second movable part is at any position within the second range of motion and when viewed along the second axis or the third axis.

[0011] According to some embodiments of the present disclosure, the first locking element cannot disengage from the second locking element when the first movable part does not contact the second elastic element.

[0012] According to some embodiments of the present disclosure, the housing further includes a first sidewall extending along the first axis, a second sidewall extending along the first axis, and a third sidewall extending along the first axis. The first sidewall having a plate structure is parallel to the second sidewall having a plate structure. The second sidewall having a plate structure is parallel to the third sidewall having a plate structure. The optical element driving mechanism is disposed on a substrate with an optical module. The optical module has a lens. The optical module is electrically connected to the substrate. The optical element driving mechanism is electrically connected to the substrate. The first sidewall directly contacts the substrate. The second sidewall directly contacts the substrate. The third sidewall directly contacts the substrate. The first sidewall is located on both sides of the first opening with the first drive assembly when viewed along the first axis.

[0013] According to some embodiments of the present disclosure, the housing further includes a first sidewall extending along the first axis, a second sidewall extending along the first axis, and a third sidewall extending along the first axis. The first sidewall having a plate structure is parallel to the second sidewall having a plate structure. The second sidewall having a plate structure is parallel to the third sidewall having a plate structure. The optical element driving mechanism is disposed on a substrate with an optical module. The optical module has a lens. The optical module is electrically connected to the substrate. The optical element driving mechanism is electrically connected to the substrate. The first sidewall has a gap with the substrate. The second sidewall has a gap with the substrate. The third sidewall has a gap with the substrate. The shortest distance between the first sidewall and the substrate is less than the shortest distance between the second sidewall and the substrate. The shortest distance between the second sidewall and the substrate is equal to the shortest distance between the third sidewall and the substrate. The shortest distance between the first sidewall and the substrate is less than the shortest distance between the housing and the optical module. The first sidewall is located on both sides of the first opening with the first drive assembly when viewed along the first axis.

[0014] The present disclosure provides an optical element driving mechanism, which includes a first movable part, a fixed assembly, a first driving assembly, a second movable part, a second driving assembly, and a locking assembly. The first movable part is movable relative to the fixed assembly. The first driving assembly is configured to drive the first movable part to move relative to the fixed assembly. The second driving assembly is configured to drive the second movable part to move relative to the first movable part and the fixed assembly. The locking assembly is configured to position the first movable part relative to the fixed assembly at a first position or a second position.

[0015] The locking assembly includes a first locking element and a second locking element, which are configured to engage with each other to lock the optical element. In some embodiments, a first hook structure of the first locking element is configured to engage with a second hook structure of the second locking element, and a fourth hook structure of the first locking element is configured to engage with a third hook structure of the second locking element. Based on the design of these hook structures, the optical element can be securely locked. When the optical element driving mechanism is impacted, the second locking element can be effectively prevented from disengaging from the first locking element on the optical element.

[0016] The locking assembly includes a first locking element and a second locking element, which are configured to engage with each other to lock the optical element. In some embodiments, a first hook structure of the first locking element is configured to engage with a second hook structure of the second locking element, and a fourth hook structure of the first locking element is configured to engage with a third hook structure of the second locking element. Based on the design of these hook structures, the optical element can be securely locked. When the optical element driving mechanism is impacted, the second locking element can be effectively prevented from disengaging from the first locking element on the optical element. BRIEF DESCRIPTION OF DRAWINGS

[0017] The present disclosure can be understood more fully by following the detailed description in conjunction with the accompanying drawings. It is noted that the various features are not drawn to scale and are intended for illustrative purposes only. In fact, the dimensions of the various features can be arbitrarily increased or decreased for the sake of clarity.

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

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

[0020] Figure 3 A top view of a partial structure of an optical element driving mechanism according to an embodiment of the present disclosure.

[0021] Figure 4 A top view of a first opening being shielded according to an embodiment of the present disclosure.

[0022] Figure 5 A side view of a partial structure of an optical element driving mechanism according to an embodiment of the present disclosure.

[0023] Figure 6 A front view of a partial structure of an optical element driving mechanism according to an embodiment of the present disclosure.

[0024] Figure 7 A plan view of a partial structure of an optical element driving mechanism according to an embodiment of the present disclosure.

[0025] Figure 8 A sectional view of an optical element driving mechanism according to an embodiment of the present disclosure along a line segment A-A. Figure 1

[0026] Figure 9 A plan view of a first locking element disengaging a second locking element according to an embodiment of the present disclosure.

[0027] Figure 10 A plan view of a first locking element abutting a second locking element and moving along a second axis AX2 according to an embodiment of the present disclosure.

[0028] Figure 11 A plan view of a fourth surface abutting a third surface according to an embodiment of the present disclosure.

[0029] Figure 12 A perspective view of an optical element driving mechanism according to another embodiment of the present disclosure.

[0030] Figure 13 A front view of an optical element driving mechanism according to another embodiment of the present disclosure.

[0031] Figure 14 A side view of an optical element driving mechanism according to another embodiment of the present disclosure.

[0032] Reference signs are as follows:

[0033] 15: substrate

[0034] 100, 100A: optical element driving mechanism

[0035] 102: outer frame

[0036] 1021: first opening

[0037] 1023: first outer frame surface

[0038] 1024: second outer frame surface

[0039] 102R: accommodation opening ​

[0040] 105: first elastic element

[0041] 106: second elastic element

[0042] 1061: first portion

[0043] 1062: second portion

[0044] 1063: first connecting portion

[0045] 1064: second connecting portion

[0046] 1065: contact portion

[0047] 107: third elastic element

[0048] 108: first movable portion

[0049] 1081: bearing seat

[0050] 1082: optical element

[0051] 1083: first locking element

[0052] 110: second movable portion

[0053] 1101: second locking element

[0054] 110B: second body

[0055] 112: base

[0056] 131: first guide element

[0057] 132: second guide element

[0058] 150: optical module

[0059] AS: accommodation space

[0060] AX1: first axis

[0061] AX2: second axis

[0062] AX3: third axis

[0063] CL1: first coil

[0064] CL2: second coil

[0065] CM1: first magnetically conductive element

[0066] CM2: second magnetically conductive element

[0067] DA1: first drive assembly

[0068] DA2: second drive assembly

[0069] DF1: first driving force

[0070] DF2: second driving force

[0071] DF3: third driving force

[0072] DF4: fourth driving force

[0073] DM: driving module

[0074] DS1: shortest distance

[0075] DS2: shortest distance

[0076] FA: fixing assembly

[0077] GA: guiding assembly

[0078] GS1: first guiding structure

[0079] GS2: second guiding structure

[0080] HK1: first hook structure

[0081] HK2: second hook structure

[0082] HK3: third hook structure

[0083] HK4: fourth hook structure

[0084] KS1: first surface

[0085] KS2: second surface

[0086] KS3: third surface

[0087] KS4: fourth surface

[0088] LA: locking assembly

[0089] MA: moving assembly

[0090] MG1: first magnetic element

[0091] MG2: second magnetic element

[0092] MR2: second movement range

[0093] PF1: first pre-force

[0094] SW1: first side wall

[0095] SW2: second side wall

[0096] SW3: third side wall

[0097] TW: top wall

[0098] WX1: first bobbin

[0099] WX2: second bobbin

[0100] X: X-axis

[0101] Y: Y-axis

[0102] Z: Z-axis DETAILED DESCRIPTION

[0103] Many different arrangements can be used for the elements described above and shown in the drawings. For example, the various elements could be re-arranged or otherwise configured. Also, the various methods or processes can be implemented in either hardware or software in different systems and methodologies. Furthermore, different embodiments of the disclosure can be implemented either currently existing computer processors, or as one or more specially designed computer processors. Also, the various different elements can be used in any combination. For example, the various features of the different embodiments can be used either individually or in any combination. The disclosure is not limited to the embodiments described above, but rather the scope of the disclosure is limited only by the claims. For example, the features of one embodiment can be used in other embodiments. Also, the features of the different embodiments can be used in any combination. For example, the features of one embodiment can be used in other embodiments. Also, the features of the different embodiments can be used in any combination.

[0104] Furthermore, repeated use of reference characters in the drawings does not necessarily indicate the same element. Single integrated circuits or packaged or non-packaged devices can contain multiple elements. In the drawings, the depiction of one number of items does not mean only that particular number of items. The drawings show an example of one embodiment of the disclosure, and the disclosure is not limited to the embodiment shown in the drawings. In the drawings: like reference numerals can represent like parts throughout the several views of the drawing; and

[0105] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and the present disclosure, and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

[0106] Furthermore, the use of ordinal numbers such as "first" and "second" in the specification and claims to modify the elements of the claims does not imply or represent any prior ordinal number of the claimed element, nor does it represent the order of one claimed element with another, or the order of manufacturing methods. The use of ordinal numbers is only to enable a claimed element with a certain name to be clearly distinguished from another claimed element with the same name.

[0107] Furthermore, in some embodiments of this disclosure, terms such as "connection" and "interconnection," unless specifically defined, may refer to two structures in direct contact, or they may refer to two structures that are not in direct contact, with other structures disposed between them. Moreover, these terms regarding joining and connection may also include cases where both structures are movable or both structures are fixed.

[0108] Please refer to Figures 1 to 3 , Figure 1 This is a perspective view of an optical element driving mechanism 100 according to an embodiment of the present disclosure. Figure 2 This is an exploded view of an optical element driving mechanism 100 according to an embodiment of the present disclosure, and Figure 3 This is a top view of a partial structure of an optical element driving mechanism 100 according to an embodiment of the present disclosure. The optical element driving mechanism 100 may be an optical camera module configured to carry and drive an optical element. The optical element driving mechanism 100 can be installed in various electronic devices or portable electronic devices, such as smartphones, to allow users to perform image extraction functions.

[0109] In this embodiment, the optical element driving mechanism 100 may include a fixed component FA, a movable component MA, and a driving module DM. The movable component MA is movably connected to the fixed component FA. The driving module DM is configured to drive the movable component MA to move relative to the fixed component FA.

[0110] In this embodiment, as Figure 2 As shown, the fixed component FA includes an outer frame 102 and a base 112, and the movable component MA may include a first movable part 108 and a second movable part 110. The first movable part 108 may include a support 1081 and an optical element 1082. In this embodiment, the optical element 1082 may serve as a light shield or a shutter, but is not limited thereto. In other embodiments, the optical element 1082 may also serve as a filter or an aperture, etc.

[0111] In this embodiment, the carrier 1081 is detachably connected to the optical element 1082, but is not limited thereto. For example, in other embodiments, the optical element 1082 can be connected to the carrier 1081 using insert molding. For example, the carrier 1081 can have a non-metallic material, such as being made of a plastic material, and the optical element 1082 can have a metallic material.

[0112] The outer frame 102 is fixedly disposed on the base 112, and the outer frame 102 can be combined with the base 112 to collectively accommodate the movable assembly MA and the driving module DM, and the first movable part 108 can move relative to the fixed assembly FA.

[0113] As shown in Figure 2 , the aforementioned outer frame 102 has a first opening 1021, and the base 112 accommodates an optical module 150 (such as a photosensitive module). The first opening 1021 is configured to allow an external light ray traveling along a first axis AX1 to pass through and be received by the aforementioned optical module 150 to generate a digital image signal.

[0114] In this embodiment, the outer frame 102 includes a top wall TW, a first side wall SW1, a second side wall SW2, and a third side wall SW3. The first side wall SW1, the second side wall SW2, and the third side wall SW3 extend from the top wall TW along the first axis AX1.

[0115] The first side wall SW1 having a plate structure is parallel to the second side wall SW2 having a plate structure. The second side wall SW2 having a plate structure is parallel to the third side wall SW3 having a plate structure.

[0116] As shown in Figure 2 , the optical element driving mechanism 100 and the optical module 150 are disposed on a substrate 15. The substrate 15 is, for example, a main circuit board in an electronic device, but is not limited thereto. The optical module 150 can have, for example, a lens, and the optical module 150 is electrically connected to the substrate 15. Similarly, the optical element driving mechanism 100 is also electrically connected to the substrate 15.

[0117] It is noted that in this embodiment, the first side wall SW1 directly contacts the substrate 15, the second side wall SW2 directly contacts the substrate 15, and the third side wall SW3 directly contacts the substrate 15. Therefore, when the optical element driving mechanism 100 is subjected to a force along the first axis AX1, this force can be dispersed onto the substrate 15 through the first side wall SW1, the second side wall SW2, and the third side wall SW3, so that the optical element driving mechanism 100 can be prevented from being crushed.

[0118] Please refer to Figures 1 to 4 , and Figure 4This is a top view showing the first opening 1021 being obscured according to an embodiment of the present disclosure. In this embodiment, the optical element driving mechanism 100 may further include a locking assembly LA, configured to fix the first movable portion 108 relative to the fixed assembly FA in a first position. Figure 3 (position) or a second position ( Figure 4 (Position). The locking assembly LA may include a first locking element 1083 and a second locking element 1101, and the first locking element 1083 may engage with the second locking element 1101 so that the first movable part 108 is fixed relative to the fixed assembly FA in a first position or a second position.

[0119] In this embodiment, the drive module DM may include a first drive component DA1 configured to drive the first movable part 108 to move relative to the fixed component FA along a second axis AX2, so that the optical element 1082 may selectively overlap with the first opening 1021. The drive module DM may further include a second drive component DA2, and the second drive component DA2 is configured to drive the second movable part 110 to move relative to the fixed component FA.

[0120] like Figure 4 As shown, when viewed along the first axis AX1 (Z-axis), the first drive assembly DA1 is located between the second drive assembly DA2 and the first opening 1021. When viewed along the first axis AX1, the first sidewall SW1 and the first drive assembly DA1 are located on opposite sides of the first opening 1021.

[0121] When viewed along the first axis AX1, the optical element drive mechanism 100 has an elongated structure extending along the second axis AX2, and the first opening 1021, the first drive component DA1, and the second drive component DA2 are arranged along the second axis AX2.

[0122] Specifically, the first axis AX1 is not parallel to the second axis AX2. More specifically, the second axis AX2 is perpendicular to the first axis AX1. When viewed along the first axis AX1, and when the first movable part 108 is located... Figure 3 In the first position, the optical element 1082 does not overlap with at least a portion of the first opening 1021. When viewed along the first axis AX1, and when the first movable part 108 is in the second position, the optical element 1082 overlaps with at least a portion of the first opening 1021.

[0123] Please refer to Figures 2 to 6 , Figure 5 This is a side view of a portion of the structure of an optical element driving mechanism 100 according to an embodiment of the present disclosure, and Figure 6This is a front view of a portion of the structure of an optical element driving mechanism 100 according to an embodiment of the present disclosure. When viewed along the second axis AX2 (Y-axis), the first driving component DA1 overlaps at least a portion of the second driving component DA2.

[0124] The first driving component DA1 includes a first coil CL1, a first magnetically conductive element CM1, and a first magnetic element MG1. The first magnetic element MG1 corresponds to the first coil CL1, and the first magnetically conductive element CM1 corresponds to the first coil CL1; for example, the first coil CL1 is wound around the first magnetically conductive element CM1. The first magnetically conductive element CM1 is made of a magnetically conductive material and has an elongated structure, and a first winding axis WX1 of the first coil CL1 is parallel to the extending direction of the first magnetically conductive element CM1.

[0125] The second drive assembly DA2 includes a second coil CL2, a second magnetic element MG2, and a second magnetically conductive element CM2. The second magnetic element MG2 corresponds to the second coil CL2, and the second magnetically conductive element CM2 corresponds to the second coil CL2; for example, the second coil CL2 is wrapped around the second magnetically conductive element CM2. The second magnetically conductive element CM2 has a magnetically conductive material and an elongated structure.

[0126] A second winding axis WX2 of the second coil CL2 is not parallel to the extension direction of the second magnetic element CM2. For example, the second winding axis WX2 is perpendicular to the extension direction of the second magnetic element CM2.

[0127] like Figure 5 As shown, on the second axis AX2, the maximum size of the second magnetic element CM2 is smaller than the maximum size of the second magnetic element MG2. On the second axis AX2, the maximum size of the second magnetic element CM2 is smaller than the maximum size of the second coil CL2.

[0128] The first winding axis WX1 is not parallel to the second winding axis WX2. For example, the first winding axis WX1 can be perpendicular to the second winding axis WX2. The arrangement direction of the first coil CL1 and the first magnetic element MG1 is parallel to the arrangement direction (Z-axis direction) of the second coil CL2 and the second magnetic element MG2. The extension direction (Y-axis) of the first magnetically conductive element CM1 is not parallel to the extension direction (X-axis) of the second magnetically conductive element CM2.

[0129] In addition, in this embodiment, the optical element driving mechanism 100 may further include a guide assembly GA, configured to guide the second movable part 110 to move along a third axis AX3. The guide assembly GA may include a first guide element 131, a second guide element 132, a first guide structure GS1, and a second guide structure GS2.

[0130] The first guide element 131 has an elongated structure extending along the third axis AX3, and the second guide element 132 also has an elongated structure extending along the third axis AX3. The first guide structure GS1 has a second movable portion 110 fixedly disposed and configured to correspond to the first guide element 131. The second guide structure GS2 has a second movable portion 110 fixedly disposed and configured to correspond to the second guide element 132.

[0131] When viewed along the second axis AX2 (Y-axis), the second magnetic element MG2 overlaps with at least a portion of the first guide element 131. When viewed along the second axis AX2, the second magnetic element MG2 overlaps with at least a portion of the second guide element 132.

[0132] When viewed along the second axis AX2, the second coil CL2 does not overlap with the first guide element 131. When viewed along the second axis AX2, the second coil CL2 does not overlap with the second guide element 132.

[0133] like Figure 5 As shown, the first guide structure GS1 can be a closed perforated structure to fit onto the first guide element 131. Furthermore, when viewed along the third axis AX3 (X-axis), the second guide structure GS2 has a recessed structure (formed on the second movable portion 110), and the recessed structure extends along the second axis AX2. Figure 5 As shown, the recessed structure can be U-shaped. Additionally, in this embodiment, the second guide structure GS2 can also prevent the second movable part 110 from rotating relative to the base 112 of the fixed component FA around the third axis AX3 (X-axis).

[0134] In addition, such as Figure 3 As shown, the guide assembly GA also includes a first elastic element 105 configured to apply a first preload PF1 to the second movable part 110. The pressure element 105 may be, for example, a spring, and the first preload PF1 may be an elastic force, but is not limited thereto.

[0135] The first preload PF1 is parallel to the third axis AX3, and the first elastic element 105 is disposed on the first guide element 131. Specifically, the first elastic element 105 is sleeved on the first guide element 131.

[0136] Please refer to Figure 7 , Figure 7 This is a top view of a partial structure of an optical element driving mechanism 100 according to an embodiment of the present disclosure. The optical element driving mechanism 100 further includes a second elastic element 106 and a third elastic element 107, disposed between the first movable part 108 and the base 112 of the fixed assembly FA. The second elastic element 106 and the third elastic element 107 are configured to limit the range of motion of the first movable part 108 relative to the second movable part 110.

[0137] The second elastic element 106 can include a first portion 1061, a second portion 1062, a first connecting portion 1063, a second connecting portion 1064, and a contact portion 1065. The first portion 1061 has an elongated structure, and the second portion 1062 has an elongated structure and is parallel and separated from the first portion 1061.

[0138] The first portion 1061 connects the second portion 1062 via the first connecting portion 1063, and the first portion 1061 connects the second portion 1062 via the second connecting portion 1064. The contact portion 1065 is protruded from the second portion 1062. That is, the contact portion 1065 can be a part of the second portion 1062.

[0139] As shown in Figure 7 , the first portion 1061, the second portion 1062, the first connecting portion 1063, and the second connecting portion 1064 form a ring-shaped closed structure. In the second axis AX2, the maximum dimension of the first portion 1061 is smaller than the maximum dimension of the second portion 1062.

[0140] The second elastic element 106 has a different material from the first elastic element 105. The second elastic element 106 has a non-metallic material, and the first elastic element 105 has a metallic material. For example, the second elastic element 106 is made of rubber or plastic, but is not limited thereto. The third elastic element 107 is disposed on the base 112 in a symmetrical manner with the second elastic element 106, and the third elastic element 107 is the same element as the second elastic element 106, and thus will not be described herein.

[0141] Please refer back to Figure 3 and Figure 4 . In this embodiment, the first locking element 1083 has a first hook structure HK1, and the second locking element 1101 has a second hook structure HK2 corresponding to the first hook structure HK1. The second locking element 1101 can further include a third hook structure HK3 corresponding to a fourth hook structure HK4 of the first locking element 1083.

[0142] As shown in Figure 3 , when the first movable portion 108 is located at the first position, the shortest distance between the first locking element 1083 and the second hook structure HK2 is smaller than the shortest distance between the first locking element 1083 and the third hook structure HK3. In addition, as shown in Figure 4 , when the first movable portion 108 is located at the second position, the shortest distance between the first locking element 1083 and the second hook structure HK2 is greater than the shortest distance between the first locking element 1083 and the third hook structure HK3.

[0143] The first hook structure HK1 includes a first surface KS1 with a planar structure, parallel to the first axis AX1. The first surface KS1 is not parallel to the second axis AX2, and the first surface KS1 is not parallel to the third axis AX3. The second hook structure HK2 includes a second surface KS2 with a planar structure, parallel to the first axis AX1. The second surface KS2 is not parallel to the second axis AX2, and the second surface KS2 is not parallel to the third axis AX3.

[0144] The third hook structure HK3 includes a third surface KS3 with a planar structure, parallel to the first axis AX1. The third surface KS3 is not parallel to the second axis AX2, and the third surface KS3 is not parallel to the third axis AX3. The fourth hook structure HK4 includes a fourth surface KS4 with a planar structure, parallel to the first axis AX1. The fourth surface KS4 is not parallel to the second axis AX2, and the fourth surface KS4 is not parallel to the third axis AX3.

[0145] In this embodiment, the first locking element 1083 is fixedly disposed on the first movable part 108. For example, the first locking element 1083 and the optical element 1082 have an integrated structure.

[0146] The second locking element 1101 is fixedly disposed on the second movable part 110. The second locking element 1101 and a second body 110B of the second movable part 110 have an integrated structure, and the second locking element 1101 protrudes from the second body 110B along the first axis AX1. Figure 2 ).

[0147] Please refer to Figure 7 and Figure 8 , Figure 8 For an optical element driving mechanism 100 according to an embodiment of the present disclosure along Figure 1 A cross-sectional view of line segment AA. (See diagram below.) Figure 7 As shown, the second movable part 110 can move relative to the fixed component FA within a second motion range MR2.

[0148] like Figure 8 As shown, the base 112 has a receiving space AS configured to receive the second drive assembly DA2. Furthermore, the top wall TW of the outer frame 102 has a plate-like structure perpendicular to the first shaft AX1. The top wall TW of the outer frame 102 has a receiving opening 102R configured to receive a portion of the second locking element 1101.

[0149] Specifically, the top wall TW of the outer frame 102 has a first outer frame surface 1023 facing the optical element 1082. The top wall TW of the outer frame 102 has a second outer frame surface 1024 facing in the opposite direction to the first outer frame surface 1023.

[0150] When the second movable part 110 is located at any position of the second movement range MR2, and when viewed along the second axis AX2 or the third axis AX3, the second locking element 1101 overlaps at least a portion of the first outer frame surface 1023.

[0151] Furthermore, when the second movable part 110 is located at any position of the second movement range MR2, and when viewed along the second axis AX2 or the third axis AX3, the second locking element 1101 does not overlap the second outer frame surface 1024. That is, the second locking element 1101 does not protrude out of the housing 102 for the purpose of miniaturization.

[0152] Please refer to Figure 3 , Figure 9 , Figure 10 , Figure 11 and Figure 4 , Figure 9 is a top view of the first locking element 1083 according to an embodiment of the present disclosure disengaging from the second locking element 1101, Figure 10 is a top view of the first locking element 1083 according to an embodiment of the present disclosure abutting against the second locking element 1101 and moving along the second axis AX2, and Figure 11 is a top view of the fourth surface KS4 according to an embodiment of the present disclosure abutting against the third surface KS3.

[0153] The optical element driving mechanism 100 of the present disclosure can serve as a shutter to adjust the light entering the optical module 150. When it is necessary to close the first opening 1021 to prevent light from entering the optical module 150, the first coil CL1 is energized to generate a first driving force DF1 to drive the carrier 1081 to move from the Figure 3 to a first limit position in Figure 9 .

[0154] At this time, the carrier 1081 pushes the second elastic element 106, and the shortest distance between the first part 1061 and the first movable part 108 is less than the shortest distance between the second part 1062 and the first movable part 108. When the first movable part 108 is located at the first limit position relative to the fixed assembly FA, the first part 1061 directly contacts the contact part 1065 of the second part 1062.

[0155] Furthermore, when the carrier 1081 is located at the first limit position, the first locking element 1083 disengages from the second locking element 1101. Then, the second coil CL2 is energized to generate a second driving force DF2 with the second magnetic element MG2 to drive the second movable part 110 to move downward along the third axis AX3 from the Figure 9 to the Figure 10 position.

[0156] After that, the first coil CL1 is energized to generate a third driving force DF3 to drive the first movable part 108 to move along the second axis AX2 from the position of Figure 9 to the position of Figure 10 During this movement, the first pre-pressure PF1 is applied to the second movable part 110 to make the second locking element 1101 abut against the first locking element 1083.

[0157] Next, the third driving force DF3 continues to drive the first movable part 108 to move along the second axis AX2 from the position of Figure 11 to the position of At this time, the second coil CL2 is energized to generate a fourth driving force DF4 to drive the second movable part 110 to move upwardly along with the first pre-pressure PF1, so that the third surface KS3 abuts against the fourth surface KS4. Thus, the second locking element 1101 moves upwardly along the fourth surface KS4, and the bearing seat 1081 pushes the third elastic element 107.

[0158] Figure 4 Finally, the second movable part 110 moves to the second position in Figure 11 , and the elastic force of the third elastic element 107 pushes the first movable part 108 to the right, so that the first movable part 108 moves from the position of Figure 4 to the second position in , so that the third hook structure HK3 stably engages with the fourth hook structure HK4. Thus, the second locking element 1101 again locks the first locking element 1083 to achieve the purpose of closing the first opening 1021. The steps of opening the first opening 1021 are similar to those of closing, and thus are not described herein.

[0159] It is worth noting that in this embodiment, when the first movable part 108 moves to the first limit position without contacting the second elastic element 106, the first locking element 1083 cannot be disengaged from the second locking element 1101. Based on this design, the second locking element 1101 can be further ensured to stably engage with the first locking element 1083, thereby avoiding the problem that the optical element 1082 is disengaged from the second locking element 1101 when the optical element driving mechanism 100 is impacted.

[0160] Figures 12 to 14 , Figure 12 is a perspective view of an optical element driving mechanism 100A according to another embodiment of the present disclosure, Figure 13 is a front view of the optical element driving mechanism 100A according to another embodiment of the present disclosure, and Figure 14 is a side view of the optical element driving mechanism 100A according to another embodiment of the present disclosure.

[0161] The optical element driving mechanism 100A of this embodiment has similar elements as the optical element driving mechanism 100. Similarly, the outer frame 102 has a top wall TW, a first side wall SW1, a second side wall SW2, and a third side wall SW3. The first side wall SW1, the second side wall SW2, and the third side wall SW3 are extended from the top wall TW along the first axis AX1.

[0162] When viewed along the first axis AX1, the first side wall SW1 and the first driving assembly DA1 are located on two sides of the first opening 1021. Similarly, the optical element driving mechanism 100A is disposed on the substrate 15, the optical module 150 is electrically connected to the substrate 15, and the optical element driving mechanism 100A is electrically connected to the substrate 15.

[0163] The difference is that when the outer frame 102 is combined with the base 112, the first side wall SW1 having a plate structure is not parallel to the second side wall SW2 having a plate structure, and the second side wall SW2 having a plate structure is not parallel to the third side wall SW3 having a plate structure.

[0164] Furthermore, there is a gap between the first side wall SW1 and the substrate 15, a gap between the second side wall SW2 and the substrate 15, and a gap between the third side wall SW3 and the substrate 15. Among them, the shortest distance between the first side wall SW1 and the substrate 15 is less than the shortest distance between the second side wall SW2 and the substrate 15, and the shortest distance between the second side wall SW2 and the substrate 15 is equal to the shortest distance between the third side wall SW3 and the substrate 15.

[0165] It is worth noting that the shortest distance DS1 between the first side wall SW1 and the substrate 15 is less than the shortest distance DS2 between the outer frame 102 and the optical module 150. Based on this structure design, it can be ensured that when the outer frame 102 is deflected by the force of the Z-axis, the first side wall SW1 can be deflected first and resist the substrate 15, so that the optical module 150 will not be damaged by the outer frame 102.

[0166] The present disclosure provides an optical element driving mechanism, comprising a first movable part, a fixed assembly, a first driving assembly, a second movable part, a second driving assembly, and a locking assembly. The first movable part is movable relative to the fixed assembly. The first driving assembly is configured to drive the first movable part to move relative to the fixed assembly. The second driving assembly is configured to drive the second movable part to move relative to the first movable part and the fixed assembly. The locking assembly is configured to allow the first movable part to be located at a first position or a second position relative to the fixed assembly.

[0167] The locking assembly LA includes a first locking element 1083 and a second locking element 1101 configured to engage with each other to lock the optical element 1082. In some embodiments, the first hook structure HK1 of the first locking element 1083 is configured to engage with the second hook structure HK2 of the second locking element 1101, and the fourth hook structure HK4 of the first locking element 1083 is configured to engage with the third hook structure HK3 of the second locking element 1101. Based on the design of these hook structures, the optical element 1082 can be securely locked. When the optical element driving mechanism is impacted, the second locking element 1101 can be effectively prevented from disengaging from the first locking element 1083 on the optical element 1082.

[0168] While the embodiments of the disclosure and the advantages thereof have been disclosed, it should be understood that modifications, substitutions, and alternatives can be made hereto without departing from the spirit and scope of the disclosure. In addition, the scope of protection of the present disclosure is not limited to the specific embodiments described in the specification, and any person skilled in the art can understand the current or future developed processes, machines, manufactures, compositions of matter, means, methods, and steps that can be used according to the disclosure, as long as they can substantially the same function or achieve substantially the same results as the embodiments described herein. Therefore, the scope of protection of the present disclosure includes the above-mentioned processes, machines, manufactures, compositions of matter, means, methods, and steps. In addition, each claim constitutes a separate embodiment, and the scope of protection of the present disclosure also includes the combination of each claim and embodiment.

Claims

1. An optical element driving mechanism, comprising: a first movable part configured to connect an optical element; a fixed part, wherein the first movable part is movable relative to the fixed part; a first driving part configured to drive the first movable part to move relative to the fixed part; a second movable part; a second driving part configured to drive the second movable part to move relative to the first movable part and the fixed part; a first opening configured to allow an external light ray traveling along a first axis to pass through; and a locking part configured to fix the first movable part relative to the fixed part at a first position; when viewed along the first axis, the first driving part is located between the second driving part and the first opening; when viewed along the first axis, the optical element driving mechanism has an elongated structure extending along a second axis, and the first opening, the first driving part and the second driving part are arranged along the second axis; the second axis is perpendicular to the first axis; the first driving part comprises a first coil, a first magnetic element and a first magnetic conductive element; the first magnetic conductive element has magnetic conductive material and has an elongated structure; a first winding axis of the first coil is parallel to the extending direction of the first magnetic conductive element; the first driving part is configured to drive the first movable part to move along the second axis relative to the fixed part; the second driving part is configured to drive the second movable part to move along a third axis relative to the first movable part and the fixed part, wherein the third axis is perpendicular to the first axis and the second axis, and the second driving part comprises a second coil, a second magnetic element and a second magnetic conductive element; the second magnetic conductive element has magnetic conductive material and has an elongated structure; a second winding axis of the second coil is perpendicular to the extending direction of the second magnetic conductive element; on the second axis, the maximum dimension of the second magnetic conductive element is smaller than the maximum dimension of the second magnetic element; on the second axis, the maximum dimension of the second magnetic conductive element is smaller than the maximum dimension of the second coil; the first winding axis is not parallel to the second winding axis; the arrangement direction of the first coil and the first magnetic element is parallel to the arrangement direction of the second coil and the second magnetic element; the extending direction of the first magnetic conductive element is not parallel to the extending direction of the second magnetic conductive element.

2. The optical element driving mechanism of claim 1, wherein the first axis is not parallel to the second axis; when viewed along the first axis, and when the first movable part is at the first position, the optical element does not overlap at least a portion of the first opening; when viewed along the first axis, and when the first movable part is at a second position, the optical element overlaps at least a portion of the first opening; when viewed along the second axis, the first driving part overlaps at least a portion of the second driving part; the extending direction of the first magnetic conductive element is not parallel to the extending direction of the second magnetic conductive element.

3. The optical element driving mechanism of claim 2, wherein the optical element driving mechanism further comprises a guiding assembly configured to guide the second movable part to move along a third axis, the guiding assembly comprising: a first guiding element having an elongated structure extending along the third axis; a second guiding element having an elongated structure extending along the third axis; a first guiding structure fixedly arranged with the second movable part and configured to correspond to the first guiding element; and a second guiding structure fixedly arranged with the second movable part and configured to correspond to the second guiding element; the second magnetic element overlaps at least a portion of the first guiding element when viewed along the second axis; the second magnetic element overlaps at least a portion of the second guiding element when viewed along the second axis; the second coil does not overlap the first guiding element when viewed along the second axis; the second coil does not overlap the second guiding element when viewed along the second axis; the first guiding structure has a closed perforated structure; the second guiding structure has a recessed structure when viewed along the third axis, and the recessed structure extends along the second axis; the guiding assembly further comprises a first elastic element configured to apply a first pre-pressing force to the second movable part; a direction of the first pre-pressing force is parallel to the third axis; and the first elastic element is arranged on the first guiding element.

4. The optical element driving mechanism of claim 3, wherein the optical element driving mechanism further comprises a second elastic element arranged between the first movable part and the fixed assembly; the second elastic element comprises: a first portion having an elongated structure; a second portion having an elongated structure, and the second portion is parallel and separated from the first portion; a first connecting portion, wherein the first portion connects the second portion via the first connecting portion; a second connecting portion, wherein the first portion connects the second portion via the second connecting portion; and a contact portion protruding from the second portion; the first portion, the second portion, the first connecting portion, and the second connecting portion form a ring-shaped closed structure; a maximum dimension of the first portion is smaller than a maximum dimension of the second portion on the second axis; the second elastic element is configured to limit a range of motion of the first movable part relative to the second movable part; the second elastic element has a different material from the first elastic element; the second elastic element has a non-metallic material; the first elastic element has a metallic material; a shortest distance between the first portion and the first movable part is smaller than a shortest distance between the second portion and the first movable part; and the first portion directly contacts the second portion when the first movable part is located at a first extreme position relative to the fixed assembly.

5. The optical element driving mechanism of claim 4, wherein the locking assembly comprises: a first locking element having a first hook structure; and a second locking element having a second hook structure corresponding to the first hook structure; the second locking element further comprises a third hook structure corresponding to a fourth hook structure of the first locking element. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ a shortest distance between the first locking element and the second hook structure is smaller than a shortest distance between the first locking element and the third hook structure when the first movable part is located at the first position; a shortest distance between the first locking element and the second hook structure is larger than a shortest distance between the first locking element and the third hook structure when the first movable part is located at the second position; the first hook structure comprises a first surface having a planar structure, parallel to the first axis; the first surface is not parallel to the second axis; the first surface is not parallel to the third axis; the second hook structure comprises a second surface having a planar structure, parallel to the first axis; the second surface is not parallel to the second axis; the second surface is not parallel to the third axis; the third hook structure comprises a third surface having a planar structure, parallel to the first axis; the third surface is not parallel to the second axis; the third surface is not parallel to the third axis; the fourth hook structure comprises a fourth surface having a planar structure, parallel to the first axis; the fourth surface is not parallel to the second axis; the fourth surface is not parallel to the third axis; the first locking element is fixedly disposed on the first movable part; the first locking element has an integrated structure with the optical element; the second locking element is fixedly disposed on the second movable part; the second locking element has an integrated structure with a second body of the second movable part; the second locking element protrudes from the second body along the first axis.

6. The optical element driving mechanism of claim 5, wherein the second movable part is movable relative to the fixed assembly within a second movement range; the fixed assembly comprises an outer frame and a base; the base is configured to accommodate the second driving assembly; the outer frame has a plate structure, perpendicular to the first axis; the outer frame has an accommodation opening configured to accommodate a portion of the second locking element; the outer frame has a first outer frame surface facing the optical element; the outer frame has a second outer frame surface facing in a direction opposite to the first outer frame surface; when the second movable part is located at any position within the second movement range, and when viewed along the second axis or the third axis, the second locking element overlaps at least a portion of the first outer frame surface; when the second movable part is located at any position within the second movement range, and when viewed along the second axis or the third axis, the second locking element does not overlap the second outer frame surface.

7. The optical element driving mechanism of claim 6, wherein when the first movable part does not contact the second elastic element, the first locking element cannot be disengaged from the second locking element.

8. The optical element driving mechanism of claim 6, wherein the outer frame further comprises: a first sidewall extending along the first axis; a second sidewall extending along the first axis; and a third sidewall extending along the first axis; the first sidewall having a plate structure is parallel to the second sidewall having a plate structure; the second sidewall having a plate structure is parallel to the third sidewall having a plate structure; the optical element driving mechanism is disposed on a substrate with an optical module; the optical module has a lens; the optical module is electrically connected to the substrate; ​ The optical element driving mechanism is electrically connected to the substrate; The first sidewall directly contacts the substrate; The second sidewall directly contacts the substrate; The third sidewall directly contacts the substrate; When viewed along the first axis, the first sidewall and the first driving assembly are located on both sides of the first opening.

9. The optical element driving mechanism of claim 6, wherein the outer frame further comprises: a first sidewall extending along the first axis; a second sidewall extending along the first axis; and a third sidewall extending along the first axis; When the outer frame is combined with the base, the first sidewall having a plate structure is not parallel to the second sidewall having a plate structure; When the outer frame is combined with the base, the second sidewall having a plate structure is not parallel to the third sidewall having a plate structure; The optical element driving mechanism and an optical module are disposed on a substrate; The optical module has a lens; The optical module is electrically connected to the substrate; The optical element driving mechanism is electrically connected to the substrate; There is a gap between the first sidewall and the substrate; There is a gap between the second sidewall and the substrate; There is a gap between the third sidewall and the substrate; The shortest distance between the first sidewall and the substrate is less than the shortest distance between the second sidewall and the substrate; The shortest distance between the second sidewall and the substrate is equal to the shortest distance between the third sidewall and the substrate; The shortest distance between the first sidewall and the substrate is less than the shortest distance between the outer frame and the optical module; When viewed along the first axis, the first sidewall and the first driving assembly are located on both sides of the first opening. ​

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