Optical element driving mechanism

Abstract

An optical element driving mechanism comprises a first movable part, a fixed part and a first driving assembly. The first movable part is used for connecting an optical element. The first movable part can move in a first movement range relative to the fixed part. The first driving assembly is used for driving the first movable part to move relative to the fixed part.

Description

Technical Field

[0001] This utility model relates to an optical element driving mechanism, and more particularly to an optical element driving mechanism having a connecting component. Background Technology

[0002] With the advancement of technology, many electronic devices today (such as smartphones and tablets) are equipped with camera or video recording functions. The demand for these electronic devices is increasing, and they are developing towards thinner, lighter, and higher-performance designs to provide users with more convenient and diverse choices.

[0003] However, with the development of Optical Image Stabilization (OIS) technology, ensuring the stability of the OIS mechanism and avoiding structural abnormalities while meeting the requirements of high performance and miniaturization remains an important issue. The OIS spring itself acts as a support structure, responsible for maintaining the natural center of the component and also functioning as a circuit. However, during the movement of the OIS, the spring may buckle due to compression, affecting the mechanism's operation. Buckling can occur in different directions. If the spring buckles upwards and contacts the housing, it may cause a short circuit, affecting not only system stability but also a sudden decrease in spring rigidity, impacting structural stability. If the spring buckles downwards, it may rub against the plastic parts, increasing the OIS's moving resistance and affecting the driving effect of the drive components. Therefore, designing an OIS mechanism that avoids buckling of the OIS spring, improves stability, and ensures normal operation has become an important direction for current technological development. Utility Model Content

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

[0005] This disclosure provides an optical element driving mechanism, which includes a first movable part, a fixed part, and a first driving assembly. The first movable part is used to connect to an optical element. The first movable part can move relative to the fixed part within a first range of motion. The first driving assembly is used to drive the first movable part to move relative to the fixed part.

[0006] According to some embodiments of this disclosure, the optical element driving mechanism further includes a connecting component, wherein the first movable part is movable relative to the fixed part via the connecting component.

[0007] According to some embodiments of this disclosure, the connecting assembly includes a first connecting element, the first connecting element comprising: a first connecting end, at least partially fixedly connected to the fixed portion; a second connecting end, at least partially fixedly connected to the first movable portion; and a flexible portion, wherein the second connecting end is movably connected to the first connecting end via the flexible portion; wherein, when the first connecting element is not affected by external force, the first connecting end and the second connecting end have a minimum first distance, and when the first movable portion is located at any position within the first range of motion, the distance between the first connecting end and the second connecting end is greater than the first distance.

[0008] According to some embodiments of the present disclosure, the optical element driving mechanism has a first side; wherein, when viewed along an optical axis, the first connecting end and the second connecting end are located on the first side of the optical element driving mechanism; wherein, when viewed along the optical axis, the first distance is less than half the length of the first side.

[0009] According to some embodiments of this disclosure, the first driving assembly is used to drive the first movable part to move relative to the fixed part along a first direction, which is not parallel to the thickness direction of the first connecting element having a plate-like structure.

[0010] According to some embodiments of this disclosure, the first connecting end includes a first surface, the second connecting end includes a second surface, and the first surface and the second surface face the same direction; wherein, the fixing part includes a first connecting part, the first movable part includes a second connecting part, the first surface of the first connecting end faces the first connecting part of the fixing part, and the second surface of the second connecting end faces the second connecting part of the first movable part.

[0011] According to some embodiments of this disclosure, the first movable portion further includes a protrusion, and the second surface of the second connecting end is disposed on the protrusion. When viewed along a direction parallel to the second surface, the protrusion at least partially overlaps with the first connecting portion.

[0012] According to some embodiments of this disclosure, the connecting assembly further includes a second connecting element, the first connecting element and the second connecting element being located diagonally opposite to the optical element driving mechanism, the optical element having an optical axis; wherein the fixing portion further includes a recessed portion, the height of which is lower than the height of the first connecting portion of the fixing portion when viewed along a direction perpendicular to the optical axis; wherein the height of the recessed portion is lower than the height of the second connecting portion when viewed along a direction perpendicular to the optical axis;

[0013] When viewed along a direction perpendicular to the optical axis, the height of the first connecting part is lower than the height of the second connecting part.

[0014] According to some embodiments of this disclosure, the first surface of the first connecting end is located on a first imaginary plane, and the second surface of the second connecting end does not overlap with the first imaginary plane in a direction parallel to the first surface.

[0015] According to some embodiments of this disclosure, the first surface of the first connecting end is located on a first imaginary plane, and the second surface of the second connecting end overlaps with the first imaginary plane.

[0016] The beneficial effect of this disclosure is that the optical anti-shake spring sheet itself serves as both a support structure and a circuit function, responsible for maintaining the equilibrium position of the component when it is static. However, during the movement of the optical anti-shake mechanism, the spring sheet may buckle due to compressive stress, thereby affecting the operation of the mechanism.

[0017] The solution disclosed herein applies pre-stress to the connecting components through a specific structural configuration, significantly reducing the risk of buckling due to compressive stress during the optical anti-shake motion stroke. Attached Figure Description

[0018] The embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. It should be noted that, in accordance with industry standard practice, many features are not shown to scale and are for illustrative purposes only. In fact, the dimensions of the components may be arbitrarily enlarged or reduced to clearly demonstrate the features of this disclosure.

[0019] Figure 1 A perspective view of an optical element driving mechanism according to some embodiments of the present disclosure is shown.

[0020] Figure 2 A perspective view of an optical element driving mechanism according to some embodiments of the present disclosure is shown.

[0021] Figure 3 Showing a bottom view of an optical element driving mechanism according to some embodiments of the present disclosure.

[0022] Figure 4 A perspective view of a portion of an optical element driving mechanism according to some embodiments of the present disclosure is shown, wherein the housing of the fixing part is not shown for illustrative purposes.

[0023] Figure 5 Showing a top view of a portion of an optical element drive mechanism according to some embodiments of the present disclosure, wherein the housing and top cover are not shown for illustrative purposes.

[0024] Figure 6 This is a perspective view showing the base, second movable part, and elastic element according to some embodiments of the present disclosure, viewed from below.

[0025] Figure 7A perspective view showing a second movable part, a driving magnet, a guiding component, and an elastic element according to some embodiments of the present disclosure.

[0026] Figure 8 A side view showing a first embodiment of a first connecting element connected to a fixed portion and a first movable portion according to some embodiments of the present disclosure.

[0027] Figure 9 This is a side view showing a first embodiment of a first connecting element connected to a fixed part and a first movable part according to some embodiments of the present disclosure during assembly.

[0028] Figure 10 A side view showing a second embodiment of a first connecting element connected to a fixed portion and a first movable portion according to some embodiments of the present disclosure.

[0029] The attached figures are labeled as follows:

[0030] 1000: Optical element drive mechanism

[0031] 1000-1: First side

[0032] 1000-2: Second side

[0033] 1000-3: Third side

[0034] 1000-4: Fourth side

[0035] 1100: Fixing part

[0036] 1110: Outer shell

[0037] 1120: Base

[0038] 1121: Top Cover

[0039] 1121-1: Opening

[0040] 1122:Ontology

[0041] 1122-1: First connecting part

[0042] 1122-2: Depression

[0043] 1122-3: Platform Structure

[0044] 1200: First Activities Department

[0045] 1210: Protrusion

[0046] 1220: Second connecting part

[0047] 1300: Second Activities Department

[0048] 1300-1: Contact element

[0049] 1310: Ring structure

[0050] 1320: Plate-like structure

[0051] 1330: Emphasize Structure

[0052] 1340: Retaining structure

[0053] 1341: Supporting Surface

[0054] 1410: First drive component

[0055] 1411: Bias element

[0056] 1412: Fixed-end component

[0057] 1413: Active end component

[0058] 1420: Second drive component

[0059] 1421, 1422: Driving magnets

[0060] 1423, 1424: Drive coils

[0061] 1425, 1426: Circuit elements

[0062] 1500: Bootstrap Component

[0063] 1510: Guiding element

[0064] 1520: Magnetic element

[0065] 1530: Support element

[0066] 1540: Magnetic components

[0067] 1600: Circuit components

[0068] 1700: Elastic element

[0069] 1710: Actuator

[0070] 1720: Fixed end

[0071] 1730: Connecting part

[0072] 1800: Connecting Components

[0073] 1810: First connecting element

[0074] 1811: First connection end

[0075] 1811-1: First Surface

[0076] 1812: Second connection end

[0077] 1812-1: Second Surface

[0078] 1813: Flexible part

[0079] 1820: Second connecting element

[0080] 1900: Sensing Components

[0081] 1910: Sensing Magnet

[0082] 1920: Magnetic elements

[0083] 1930: Sensing element

[0084] O: Optical axis

[0085] P1: First Imaginary Plane

[0086] P2: Second Imaginary Plane Detailed Implementation

[0087] Unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by those skilled in the art. It is understood that these terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning consistent with the relevant art and the background or context of this disclosure, and should not be interpreted in an idealized or overly formal manner, unless specifically defined herein.

[0088] 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 element with another element, or the order of manufacturing methods. The use of multiple ordinal numbers is only to make it clear that an element with a certain name can be distinguished from another element with the same name.

[0089] 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.

[0090] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this disclosure. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0091] Figure 1 A perspective view of an optical element driving mechanism 1000 according to some embodiments of the present disclosure is shown. Figure 1 As shown, the optical element driving mechanism 1000 includes a first side 1000-1, a second side 1000-2, a third side 1000-3, and a fourth side 1000-4.

[0092] like Figure 1 As shown, the first side 1000-1 and the third side 1000-3 are opposite sides of the optical element driving mechanism 1000. The second side 1000-2 and the fourth side 1000-4 are opposite sides of the optical element driving mechanism 1000. The first side 1000-1 is perpendicular to the second side 1000-2. The third side 1000-3 is perpendicular to the fourth side 1000-4.

[0093] Figure 2 A perspective view of an optical element driving mechanism 1000 according to some embodiments of the present disclosure is shown. According to some embodiments of the present disclosure, the optical element driving mechanism 1000 includes a fixing part 1100, a first movable part 1200, a second movable part 1300, a contact element 1300-1, a first driving assembly 1410, a second driving assembly 1420, a guiding assembly 1500, a circuit component 1600, an elastic element 1700, a connecting assembly 1800, and a sensing assembly 1900.

[0094] According to some embodiments of this disclosure, the fixing part 1100 includes a housing 1110 and a base 1120. The housing 1110 is fixedly connected to the base 1120 to form a space for accommodating other components of the optical element driving mechanism 1000.

[0095] According to some embodiments of this disclosure, the first movable part 1200 is used to connect to an optical element (e.g., a photosensitive element) having an optical axis O. The first movable part 1200 can move relative to the fixed part 1100 in the X-axis and / or Y-axis directions to achieve optical effects such as optical image stabilization (OIS).

[0096] According to some embodiments of this disclosure, the second movable part 1300 is used to connect an optical element (e.g., a lens), and the second movable part 1300 can move relative to the fixed part 1100 on the optical axis O to achieve optical effects such as autofocus.

[0097] According to some embodiments of this disclosure, the second movable portion 1300 is used to connect an optical element (not shown), such as a lens. A contact element 1300-1 is disposed on the second movable portion 1300. The contact element 1300-1 may be a spring sheet electrically connected to an aperture mechanism (not shown).

[0098] According to some embodiments of this disclosure, the first drive assembly 1410 is used to drive the first movable part 1200 to move relative to the fixed part 1100 within a first range of motion. The first drive assembly 1410 is connected to the base 1120 of the fixed part 1100 and the first movable part 1200 respectively.

[0099] According to some embodiments of this disclosure, the second drive assembly 1420 is used to drive the second movable part 1300 to move relative to the fixed part 1100. The second drive assembly 1420 includes two drive magnets 1421 and 1422, two drive coils 1423 and 1424, and two circuit elements 1425 and 1426.

[0100] According to some embodiments of this disclosure, drive magnets 1421 and 1422 are respectively disposed on both sides of the second movable part 1300. Drive coils 1423 and 1424 are respectively disposed on both sides of the base 1120. It should be noted that drive magnets 1421 and 1422 can each be magnetic elements arranged in a Halbach array. Drive coils 1423 and 1424 can each be planar coils.

[0101] According to some embodiments of this disclosure, drive coil 1423 corresponds to drive magnet 1421. Drive coil 1424 corresponds to drive magnet 1422. Specifically, when a drive signal (e.g., applying current through an external power source) is applied to drive coils 1423 and 1424, an electromagnetic induction force is generated between drive magnet 1421 and drive coil 1423, and between drive magnet 1422 and drive coil 1424, respectively. This force drives the second movable part 1300 to move along the optical axis O, thereby achieving an autofocus optical effect.

[0102] According to some embodiments of this disclosure, the guide assembly 1500 includes a pair of guide elements 1510, a pair of magnetic elements 1520, three sets of support elements 1530, and three magnetic elements 1540. The guide elements 1510 are disposed between the base 1120 and the second movable part 1300 to guide the movement of the second movable part 1300 relative to the base 1120.

[0103] According to some embodiments of this disclosure, a magnetic attraction element 1520 is disposed on the second movable part 1300. There is a magnetic attraction between the magnetic attraction element 1520 and the guide element 1510, causing the second movable part 1300 to rest against the guide element 1510, thereby improving the smoothness of the movement of the second movable part 1300 and preventing the second movable part 1300 from tipping over relative to the base 1120 during movement.

[0104] According to some embodiments of this disclosure, a set of support elements 1530 may include three balls. The support elements 1530 are disposed between the base 1120 and the first movable portion 1200 to provide low-friction support, allowing smooth relative movement between the base 1120 and the first movable portion 1200, and ensuring a stable gap height between them.

[0105] According to some embodiments of this disclosure, a magnetic element 1540 is disposed in a base 1120. The magnetic element 1540 corresponds to a terminal embedded in the first movable portion 1200, and there is a magnetic attraction between them, so that the first movable portion 1200 rests against the base 1120.

[0106] According to some embodiments of this disclosure, the circuit component 1600 may be a flexible printed circuit (FPC). The circuit component 1600 is electrically connected to the second drive assembly 1420. The two ends of the circuit component 1600 are respectively disposed on the base 1120 and the first movable part 1200.

[0107] According to some embodiments of this disclosure, the elastic element 1700 may be a pair of spring sheets. The elastic element 1700 is disposed on the base 1120 to restrict or guide the movement of the second movable part 1300, details of which will relate to... Figures 6 to 7 Detailed explanation.

[0108] According to some embodiments of this disclosure, the connecting assembly 1800 may be a pair of spring sheets. The first movable part 1200 can move relative to the fixed part 1100 via the connecting assembly 1800. The connecting assembly 1800 also has an electrical conduction function, and is electrically connected to a terminal embedded in the base 1120 and the first drive assembly 1410. The connecting assembly 1800 is movably connected to the base 1120 and the first movable part 1200 to support the movement of the first movable part 1200 relative to the base 1120.

[0109] According to some embodiments of this disclosure, the sensing component 1900 is used to sense the movement of the second movable part 1300 relative to the fixed part 1100. The sensing component 1900 includes a sensing magnet 1910, a magnetic conductive element 1920, and a sensing element 1930.

[0110] According to some embodiments of this disclosure, a sensing magnet 1910 and a magnetic conductive element 1920 are disposed on the second movable part 1300. A sensing element 1930 is disposed on the base 1120 and corresponds to the sensing magnet 1910 to detect changes in its magnetic field and convert them into changes in output voltage, thereby measuring the movement of the second movable part 1300.

[0111] According to some embodiments of this disclosure, the magnetically conductive element 1920 may be made of a highly permeable magnetic material. The magnetically conductive element 1920 is disposed around the sensing magnet 1910 to guide or shield the magnetic field, thereby reducing interference from the external magnetic field (drive coil 1423) on the sensing magnet 1910.

[0112] Figure 3 A bottom view of an optical element driving mechanism 1000 according to some embodiments of the present disclosure is shown. Figure 3 As shown, the first drive assembly 1410 includes four bias elements 1411, two fixed-end elements 1412, and two movable-end elements 1413.

[0113] The first driving assembly 1410 adjusts the position of the photosensitive element (not shown) using the thermal driving characteristics of shape memory alloy (SMA) wire (i.e., bias element 1411). One end of the bias element 1411 is fixed to the fixed end element 1412, and the other end is connected to the movable end element 1413. The fixed end element 1412 is disposed on the base 1120. The movable end element 1413 is disposed on the first movable part 1200.

[0114] When current is applied to the bias element 1411, the bias element 1411 contracts upon heating, generating tension and moving the first movable part 1200 toward the base 1120. When the current stops, the bias element 1411 cools and returns to its original length. In this way, the first drive assembly 1410 can be used to precisely adjust the position of the photosensitive element (not shown), achieving an efficient and compact drive mechanism design.

[0115] Figure 4 A perspective view of a portion of an optical element drive mechanism 1000 according to some embodiments of the present disclosure is shown, wherein the housing 1110 of the fixing part 1100 is not shown for illustrative purposes. Figure 4 As shown, the base 1120 includes a top cover 1121 and a body 1122. The top cover 1121 is disposed on the upper end of the body 1122. The top cover 1121 may be made of metal.

[0116] According to some embodiments of this disclosure, the top cover 1121 includes a pair of openings 1121-1, the openings 1121-1 corresponding to the guide element 1510. Figure 2 The guide element 1510 can be welded together. Figure 2 It is fixed together with the opening 1121-1 to prevent the guide element 1510 from falling off during the reliability test of the optical element drive mechanism 1000, thereby increasing the structural stability.

[0117] It should be understood that the first drive component 1410 ( Figure 2 This is used to drive the first movable part 1200 to move relative to the base 1120 of the fixed part 1100 along a first direction (e.g., ±X-axis direction, ±Y-axis direction). This first direction is not parallel to the thickness direction of the first connecting element 1810, which has a plate-like structure (this thickness direction is parallel to the Z-axis and optical axis).

[0118] Figure 5 Showing a top view of a portion of an optical element drive mechanism 1000 according to some embodiments of the present disclosure, wherein the housing 1110 and the top cover 1121 are not shown for illustrative purposes. Figure 6 A perspective view showing the base 1120, the second movable part 1300, and the elastic element 1700 according to some embodiments of the present disclosure, viewed from below.

[0119] Please refer to the reference. Figures 4 to 6 The connection assembly 1800 includes a first connection element 1810. Figure 4 ) and a second connecting element 1820 ( Figure 5 ).like Figure 4 As shown, the first connecting element 1810 includes two first connecting ends 1811, a second connecting end 1812, and two flexible portions 1813.

[0120] According to some embodiments of this disclosure, a first connecting end 1811 is at least partially fixedly connected to the base 1120 of the fixing part 1100. A second connecting end 1812 is at least partially fixedly connected to the first movable part 1200. The second connecting end 1812 is movably connected to the first connecting end 1811 via a flexible part 1813.

[0121] For the sake of brevity, only the first connecting element 1810 is used as an example here. It should be understood that the second connecting element 1820 also similarly includes two first connecting ends, one second connecting end, and two flexible portions, which will not be described in detail here.

[0122] According to some embodiments of this disclosure, the body 1122 of the base 1120 includes two pairs of first connecting portions 1122-1 ( Figure 4 ), two pairs of recessed parts 1122-2 ( Figure 4 ) and four platform structures 1122-3 ( Figure 6 The first active part 1200 includes a pair of protrusions 1210. Figure 4 ) and a pair of second connecting parts 1220 Figure 4 ).

[0123] like Figure 4 As shown, the first connecting end 1811 of the first connecting element 1810 is disposed on the first connecting portion 1122-1. The second connecting end 1812 of the first connecting element 1810 is disposed on the second connecting portion 1220. The second connecting portion 1220 is located on the upper surface of the protrusion 1210.

[0124] like Figure 4 As shown, when viewed along the direction perpendicular to the optical axis, the height of the recess 1122-2 is lower than that of the first connecting portion 1122-1. Similarly, when viewed along the direction perpendicular to the optical axis, the height of the recess 1122-2 is lower than that of the second connecting portion 1220. In this way, when the first connecting element 1810 is bent due to the movement of the first movable portion 1200, the flexible portion 1813 can avoid contacting the recess 1122-2, thereby improving the driving effect of the driving assembly.

[0125] like Figure 5 As shown, since the second connection end 1812 of the first connecting element 1810 is located at a corner of the optical element driving mechanism 1000, when viewed along the optical axis O, one of the first connection ends 1811 and the second connection end 1812 of the first connecting element 1810 are located on the first side 1000-1 of the optical element driving mechanism, and the other first connection end 1811 and the second connection end 1812 of the first connecting element 1810 are located on the second side 1000-2 of the optical element driving mechanism.

[0126] like Figure 5 As shown, the first connecting element 1810 and the second connecting element 1820 are located diagonally opposite each other in the optical element driving mechanism. Figure 6 As shown, the platform structure 1122-3 of the body 1122 of the base 1120 has a downward (e.g., towards the first movable part 1200) orientation. Figure 2 The surface of the direction of the elastic element 1700 is provided on the platform structure 1122-3.

[0127] Figure 7 A perspective view showing a second movable part 1300, a driving magnet 1422, a guide assembly 1500, and an elastic element 1700 according to some embodiments of the present disclosure, as follows: Figure 7 As shown, the second active part 1300 includes a ring structure 1310, a pair of plate structures 1320, a pair of protruding structures 1330 and a pair of receiving structures 1340.

[0128] According to some embodiments of this disclosure, the annular structure 1310 is the portion of the second movable portion 1300 used to connect an optical element (not shown). A pair of plate-like structures 1320 are respectively located on both sides of the annular structure 1310. The extending direction of the plate-like structures 1320 is perpendicular to the annular structure 1310.

[0129] According to some embodiments of this disclosure, a drive magnet 1422 is disposed on a plate-like structure 1320. A protruding structure 1330 extends downward from the annular structure 1310 (e.g., towards...). Figure 2 The first active part 1200 protrudes (in the direction of). The housing structure 1340 is located on one side of the plate structure 1320.

[0130] According to some embodiments of this disclosure, the receiving structure 1340 accommodates the magnetic element 1520. When viewed along the optical axis O, the magnetic element 1520 is not parallel to the driving magnet 1422; therefore, there is space in the receiving structure 1340 available for applying an adhesive. The receiving structure 1340 includes a bearing surface 1341. The guiding element 1510 rests against the bearing surface 1341.

[0131] According to some embodiments of this disclosure, the elastic element 1700 includes an actuating portion 1710, two fixed ends 1720, and two connecting portions 1730. The fixed ends 1720 are connected to the actuating portion 1710 via the connecting portions 1730. The fixed ends 1720 are disposed on the platform structure 1122-3 of the base 1120 (e.g., ...). Figure 6 (As shown).

[0132] According to some embodiments of this disclosure, when the second movable part 1300 is in the pressed position, the protruding structure 1330 of the second movable part 1300 contacts the actuating part 1710 of the elastic element 1700. When the second movable part 1300 moves to the pressed position, the actuating part 1710 of the elastic element 1700 deforms to provide elastic support force. When the second movable part 1300 is in the released position, the second movable part 1300 does not contact the actuating part 1710 of the elastic element 1700.

[0133] In detail, to provide a longer optical distance, large lenses need to be moved to a usable release position during shooting. However, to prevent the lens from protruding and affecting portability when not in use, it is designed to be stored inside the mechanism and only popped out when needed. The aforementioned ejector lens mechanism does not change the autofocus travel range, but rather adjusts the initial position to maintain an appropriate distance between the lens and the sensor when activated, thereby optimizing optical performance and improving image quality.

[0134] When the ejector lens of this disclosure is not driven, the second movable part 1300 will press down to a certain depth. When the pressure is released, the second movable part 1300 will pop out by the elastic support force of the elastic element 1700, that is, it will enter the usable or autofocus state, and its popping height will not exceed the outer shell 1110. Figure 2 It should be understood that the optical element driving mechanism 1000 itself does not include a mechanism for pressing down the second movable part 1300, but rather the second movable part 1300 is pushed by an additional mechanism.

[0135] Figure 8 This is a side view of a first embodiment showing a first connecting element 1810 connected to the fixed portion 1100 and the first movable portion 1200 according to some embodiments of the present disclosure. (See also...) Figure 8 As shown, the first connecting end 1811 includes a first surface 1811-1, and the second connecting end 1812 includes a second surface 1812-1. The first surface 1811-1 and the second surface 1812-1 face the same direction.

[0136] like Figure 8 As shown, the first surface 1811-1 of the first connecting end 1811 faces the first connecting portion 1122-1 of the fixed portion 1100, and the second surface 1812-1 of the second connecting end 1812 faces the second connecting portion 1220 of the first movable portion 1200. Specifically, the first surface 1811-1 of the first connecting end 1811 is provided at the first connecting portion 1122-1 of the fixed portion 1100. The second surface 1812-1 of the second connecting end 1812 is provided at the second connecting portion 1220 of the first movable portion 1200.

[0137] In other words, the second surface 1812-1 of the second connecting end 1812 is disposed on the upper surface of the protrusion 1210 of the first movable part 1200. When viewed along a direction parallel to the second surface 1812-1 (e.g., from the second connecting end 1812 to the first connecting end 1811), the protrusion 1210 at least partially overlaps with the first connecting part 1122-1.

[0138] Figure 9 This is a side view showing a first embodiment of a first connecting element 1810 connected to the fixed part 1100 and the first movable part 1200 according to some embodiments of the present disclosure during assembly. In the first embodiment of the present disclosure, in order to avoid the connecting component 1800 from buckling during the optical anti-shake movement stroke, a pre-pressure is applied to the connecting component 1800 during assembly to reduce the risk of buckling during the optical anti-shake movement stroke.

[0139] In detail, in the first embodiment of this utility model, before the two ends of the first connecting element 1810 are respectively assembled to the fixed part 1100 and the first movable part 1200, the first movable part 1200 will be moved closer to the fixed part 1100. After the two ends of the first connecting element 1810 are respectively set to the fixed part 1100 and the first movable part 1200, the first movable part 1200 will be moved away from the fixed part 1100 to an initial position where the first movable part 1200 is not driven.

[0140] like Figure 9 As shown, when assembling the connecting assembly 1800, the distance between the first connecting portion 1122-1 of the fixing portion 1100 and the second connecting portion 1220 of the first movable portion 1200 is less than [missing information]. Figure 8 The distance between the first connecting part 1122-1 and the second connecting part 1220 in the middle.

[0141] exist Figure 9 During the assembly process shown, the first connecting element 1810 is not yet subjected to external force. When the first connecting element 1810 is not affected by external force, there is a minimum first distance D1 between the first connecting end 1811 and the second connecting end 1812.

[0142] According to some embodiments of this disclosure, after the first connecting end 1811 and the second connecting end 1812 are respectively disposed on the first connecting portion 1122-1 of the fixed portion 1100 and the second connecting portion 1220 of the first movable portion 1200, the first movable portion 1200 will move away from the fixed portion 1100, causing the first movable portion 1200 to return to its original position. Figure 8 The initial position, at which point the first connecting end 1811 and the second connecting end 1812 have the shortest second distance D2. Figure 8 ).

[0143] According to some embodiments of this disclosure, the aforementioned second distance D2 ( Figure 8 ) is greater than the aforementioned first distance D1 ( Figure 9 When the first movable part 1200 is located at any position within the first range of motion, the distance between the first connecting end 1811 and the second connecting end 1812 is greater than the first distance D1.

[0144] According to some embodiments of this disclosure, when viewed along the optical axis O, the first distance D1 ( Figure 9 ) and the second distance D2 ( Figure 8 All are less than half the length of the first side 1000-1 of the optical element drive mechanism 1000 (e.g.) Figure 5 (As shown).

[0145] Figure 10 This is a side view of a second embodiment showing a first connecting element 1810 connected to the fixed portion 1100 and the first movable portion 1200 according to some embodiments of the present disclosure. In the second embodiment of the present disclosure, the first connecting portion 1122-1 and the second connecting portion 1220 have different heights on the optical axis O (Z-axis). For example, Figure 10 The example shown is an embodiment in which the height of the second connecting part 1220 on the optical axis O (Z axis) is greater than the height of the first connecting part 1122-12 on the optical axis O (Z axis).

[0146] like Figure 10 As shown, the first surface 1811-1 of the first connecting end 1811 is located on the first imaginary plane P1, and the second surface 1812-1 of the second connecting end 1812 does not overlap with the first imaginary plane P1 in a direction parallel to the first surface 1811-1 (the direction of ±X-axis). In other words, the second surface 1812-1 of the second connecting end 1812 is located on the second imaginary plane P2, and there is a distance between the first imaginary plane P1 and the second imaginary plane P2 on the Z-axis.

[0147] The height difference between the first connecting part 1122-1 and the second connecting part 1220 causes the first connecting element 1810 disposed thereon to deform, thereby generating internal stress. This stress can serve as preload, thereby reducing the risk of the first connecting element 1810 buckling during the optical anti-shake stroke of the first movable part 1200.

[0148] In comparison, Figure 8In the embodiment, the first surface 1811-1 of the first connecting end 1811 is located on the first imaginary plane, and the second surface 1812-1 of the second connecting end 1812 overlaps with the first imaginary plane. That is, the first connecting portion 1122-1 and the second connecting portion 1220 have the same height on the optical axis O.

[0149] like Figure 10 As shown, the shortest third distance D3 exists between the first connecting end 1811 and the second connecting end 1812. The third distance D3 is greater than the first distance D1. Figure 9 When viewed along the direction perpendicular to the optical axis (e.g., the Y direction), the height of the first connecting portion 1122-1 is lower than the height of the second connecting portion 1220.

[0150] It should be understood that, despite Figures 8 to 10 Taking the first connecting element 1810 as an example, the second connecting element 1820 of this disclosure ( Figure 5 It also has the same features as described above; however, in order to keep the specification concise and clear, the second connecting element 1820 will not be described in detail here.

[0151] In summary, the optical anti-shake spring plate serves both as a support structure and a circuit, responsible for maintaining the component's balanced position when stationary. However, during the optical anti-shake motion, the spring plate may buckle due to compressive stress, thus affecting the mechanism's operation.

[0152] The solution provided in this disclosure applies pre-stress to the connecting components through a specific structural configuration, which significantly reduces the risk of buckling due to compressive stress during the optical anti-shake motion stroke.

[0153] While the embodiments and advantages of this disclosure have been disclosed above, it should be understood that those skilled in the art can make modifications, substitutions, and refinements without departing from the spirit and scope of this disclosure. Furthermore, the scope of protection of this disclosure is not limited to the processes, machines, manufacturing methods, material compositions, apparatuses, methods, and steps described in the specific embodiments within the specification. Those skilled in the art can understand from the disclosure of this disclosure that current or future developed processes, machines, manufacturing methods, material compositions, apparatuses, methods, and steps can be used according to this disclosure as long as they can perform substantially the same function or obtain substantially the same results in the embodiments described herein. Therefore, the scope of protection of this disclosure includes the aforementioned processes, machines, manufacturing methods, material compositions, apparatuses, methods, and steps. Additionally, each claim constitutes an individual embodiment, and the scope of protection of this disclosure also includes combinations of the various claims and embodiments.

Claims

1. An optical element driving mechanism, characterized in that, include: A first movable part, used to connect an optical element; A fixed part, wherein the first movable part is movable relative to the fixed part within a first range of motion; as well as A first drive assembly for driving the first movable part to move relative to the fixed part; and A connecting component, wherein the first movable part is movable relative to the fixed part via the connecting component; The connection assembly includes a first connection element, which includes: A first connecting end is at least partially and fixedly connected to the fixing part; A second connecting end, at least partially fixedly connected to the first movable part; and A flexible portion, wherein the second connecting end is movably connected to the first connecting end via the flexible portion; When the first connecting element is not affected by external force, the first connecting end and the second connecting end have the shortest first distance. When the first movable part is located at any position within the first range of motion, the distance between the first connecting end and the second connecting end is greater than the first distance.

2. The optical element driving mechanism as described in claim 1, characterized in that, The optical element drive mechanism has a first side; When viewed along an optical axis, the first connection end and the second connection end are located on the first side of the optical element driving mechanism; When viewed along the optical axis, the first distance is less than half the length of the first side.

3. The optical element driving mechanism as described in claim 1, characterized in that, The first drive assembly is used to drive the first movable part to move relative to the fixed part along a first direction, which is not parallel to the thickness direction of the first connecting element having a plate-like structure.

4. The optical element driving mechanism as described in claim 1, characterized in that, The first connecting end includes a first surface, and the second connecting end includes a second surface, with the first surface and the second surface facing the same direction; The fixed part includes a first connecting part, the first movable part includes a second connecting part, the first surface of the first connecting end faces the first connecting part of the fixed part, and the second surface of the second connecting end faces the second connecting part of the first movable part.

5. The optical element driving mechanism as described in claim 4, characterized in that, The first movable part also includes a protrusion, and the second surface of the second connecting end is disposed on the protrusion. When viewed along a direction parallel to the second surface, the protrusion at least partially overlaps with the first connecting part.

6. The optical element driving mechanism as described in claim 4, characterized in that, The connection assembly further includes a second connection element, the first connection element and the second connection element being located diagonally opposite to the optical element drive mechanism, the optical element having an optical axis; The fixing part also includes a recessed part, and when viewed along a direction perpendicular to the optical axis, the height of the recessed part is lower than the height of the first connecting part of the fixing part; When viewed along a direction perpendicular to the optical axis, the height of the recess is lower than the height of the second connecting portion; When viewed along a direction perpendicular to the optical axis, the height of the first connecting part is lower than the height of the second connecting part.

7. The optical element driving mechanism as described in claim 4, characterized in that, The first surface of the first connecting end is located on a first imaginary plane, and the second surface of the second connecting end does not overlap with the first imaginary plane in a direction parallel to the first surface.

8. The optical element driving mechanism as described in claim 4, characterized in that, The first surface of the first connecting end is located on a first imaginary plane, and the second surface of the second connecting end overlaps with the first imaginary plane.

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