Optical element driving mechanism

Abstract

The utility model provides an optical element driving mechanism. The 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 a first optical element. The fixed part has a main shaft. The first movable part can move 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] The utility model relates to an optical element driving mechanism, and particularly to an optical element driving mechanism with a driving component. Background Art

[0002] With the development of technology, many current electronic devices (such as smart phones) have functions of taking pictures or videos. The use of these electronic devices is becoming more and more common, and they are developing towards a convenient and miniaturized design direction to provide users with more choices.

[0003] The aforementioned electronic devices with functions of taking pictures or videos usually are provided with an optical element driving mechanism, and light can pass through optical elements (such as shutter blades, filters, lenses, etc.) to form an image on a photosensitive element. The current trend of mobile devices is miniaturization and light weight. Therefore, how to effectively miniaturize the optical element driving mechanism has become an important issue. Summary of the Utility Model

[0004] In view of this, the utility model provides an optical element driving mechanism to solve the above problems.

[0005] The utility model provides an optical element driving mechanism. The optical element driving mechanism includes a first movable part, a fixed part, and a first driving component. The first movable part is used for connecting a first optical element. The fixed part has a main shaft. The first movable part can move relative to the fixed part. The first driving component is used for driving the first movable part to move relative to the fixed part.

[0006] According to some embodiments of the utility model, when observing along the main shaft, the geometric center of the fixed part does not overlap with the geometric center of the first optical element. When observing along the main shaft, the first optical element has a polygonal structure. When observing along the main shaft, the geometric center of the first movable part does not overlap with the geometric center of the first optical element.

[0007] According to some embodiments of the utility model, it further includes a first circuit component. The first circuit component includes an opening, and the opening corresponds to the first optical element. The fixed part has a first side and a second side. Wherein, when observing along the main shaft, the opening has a polygonal structure, and the geometric center of the opening does not overlap with the geometric center of the first movable part. Wherein, when observing along the main shaft, the opening includes a first boundary and a second boundary, and the length of the first boundary is greater than the length of the second boundary. Wherein, when observing along the main shaft, the first boundary is adjacent to the first side of the fixed part. Wherein, when observing along the main shaft, the second boundary is adjacent to the second side of the fixed part.

[0008] According to some embodiments of the present utility model, the first driving assembly includes a first driving portion and a second driving portion. When observing along the main shaft, the first driving portion is located on the first side; when observing along the main shaft, the second driving portion is located on the second side; when observing along the main shaft, the shortest distance between the first boundary and the first side is different from the shortest distance between the second boundary and the second side; when observing along the main shaft, the first boundary is parallel to the first side, and the second boundary is parallel to the second side; when observing along the main shaft, the shortest distance between the first boundary and the first side is greater than the shortest distance between the second boundary and the second side; wherein, the first driving portion includes a first magnetic element, a first coil and a second coil, the second driving portion includes a second magnetic element and a third coil, when observing along the main shaft, the area of the first magnetic element is different from the area of the second magnetic element; when observing along the main shaft, the area of the first magnetic element is greater than the area of the second magnetic element; when observing along the main shaft, the first coil and the second coil are located on the first side; when observing along the main shaft, in the extending direction of the first side, the maximum dimension of the first coil is different from the maximum dimension of the second coil; when observing along the main shaft, in the extending direction of the first side, the maximum dimension of the first coil is less than the maximum dimension of the second coil; when observing along the main shaft, the third coil is located on the second side; when observing along the main shaft, the shortest distance between the first coil and the third coil is different from the shortest distance between the second coil and the third coil; when observing along the main shaft, the shortest distance between the first coil and the third coil is greater than the shortest distance between the second coil and the third coil.

[0009] According to some embodiments of the present utility model, it further includes a first supporting assembly. The first movable portion can move relative to the fixed portion via the first supporting assembly. The first supporting assembly includes: an intermediate element; a corresponding element corresponding to the intermediate element and capable of moving relative to the intermediate element; a force applying element for applying a first stabilizing force to the first movable portion to make the intermediate element contact the corresponding element; wherein, the force applying element corresponds to the second magnetic element to generate the first stabilizing force, the force applying element has a magnetic conductive material, and the third coil is located between the force applying element and the second magnetic element; when observing along the main shaft, at least part of the intermediate element overlaps the space surrounded by the third coil; when observing along the direction perpendicular to the main shaft, at least part of the intermediate element overlaps with the third coil.

[0010] According to some embodiments of the present utility model, the second magnetic element includes a first magnetic portion and a second magnetic portion, and the corresponding element is disposed on the first magnetic portion; the corresponding element has a metallic material; when viewed along the main axis, the corresponding element is located between the first magnetic portion and the second magnetic portion; the magnetic pole arrangement direction of the first magnetic portion is opposite to the magnetic pole arrangement direction of the second magnetic portion; a corresponding surface of the corresponding element faces the intermediate element, and the corresponding surface is not parallel to the magnetic pole arrangement direction of the first magnetic portion; in the magnetic pole arrangement direction of the first magnetic portion, the maximum dimension of the first magnetic portion is different from the maximum dimension of the corresponding element.

[0011] According to some embodiments of the present utility model, in the magnetic pole arrangement direction of the first magnetic portion, the maximum dimension of the first magnetic portion is greater than the maximum dimension of the corresponding element; wherein, the first magnetic portion includes a first magnetic surface and a second magnetic surface, the first magnetic surface faces the third coil, and the second magnetic surface faces the opposite direction to the first magnetic surface; wherein, the second magnetic portion includes a third magnetic surface and a fourth magnetic surface, the third magnetic surface faces the third coil, and the fourth magnetic surface faces the opposite direction to the third magnetic surface; wherein, the shortest distance between the first magnetic surface and the third magnetic surface is different from the shortest distance between the second magnetic surface and the fourth magnetic surface, and the shortest distance between the first magnetic surface and the third magnetic surface is less than the shortest distance between the second magnetic surface and the fourth magnetic surface.

[0012] According to some embodiments of the present utility model, it further includes a first circuit component for electrically connecting to an external circuit. The first circuit component includes a first circuit part, and the first circuit part includes an external circuit. The fixing part includes: a housing having a top surface and a receiving space, the top surface including an external interface and being made of a metal material; a frame disposed in the receiving space of the housing, the frame including a frame surface, a first support part, and a second support part. Wherein, at least a part of the first circuit part is located between the housing and the frame, at least a part of the external circuit is exposed at the external interface of the top surface, the first circuit part has a plate-like structure, the frame is made of a resin material, the frame surface of the frame faces the top surface of the housing, the first support part of the frame directly contacts the top surface and protrudes from the frame surface, the second support part of the frame corresponds to the first circuit part, the shortest distance between the first support part and the top surface is less than the shortest distance between the second support part and the top surface; when observing along a direction parallel to the frame surface, at least a part of the first circuit part overlaps with the first support part; when observing along a direction parallel to the frame surface, the first circuit part does not overlap with the second support part; when observing along a direction perpendicular to the frame surface, at least a part of the second support part overlaps with the external interface; the shortest distance between the first circuit part and the top surface is different from the shortest distance between the first circuit part and the second support part; the shortest distance between the first circuit part and the top surface is greater than the shortest distance between the first circuit part and the second support part.

[0013] According to some embodiments of the present utility model, it further includes a second movable part, a second circuit component, and a third circuit component. The second circuit component is disposed on the second movable part, the third circuit component is movably connected to the frame and the second movable part, and the third circuit component is used for electrically connecting to an optical module, and at least a part of the third circuit component is located between the first circuit part and the frame.

[0014] According to some embodiments of the present utility model, it further includes a second movable part, a second circuit component, and a third circuit component. The second circuit component is disposed on the second movable part, the third circuit component is used for electrically connecting to an optical module, and at least a part of the top surface is located between the first circuit part and the third circuit component. Description of the Drawings

[0015] The embodiments of the present utility model will be described in detail below in conjunction with the accompanying drawings. It should be noted that, in accordance with the standard practice in the industry, various features are not drawn to scale and are only used for illustration. In fact, the dimensions of the elements may be arbitrarily enlarged or reduced to clearly show the features of the present utility model.

[0016] Figure 1 Is a perspective view of an optical element driving mechanism according to some embodiments of the present utility model.

[0017] Figure 2 Is an exploded view of an optical element driving mechanism according to some embodiments of the present utility model.

[0018] Figure 3 Is a perspective view of an optical element driving mechanism without showing the housing.

[0019] Figure 4 Is a perspective view of a first circuit member of a part according to some embodiments of the present utility model.

[0020] Figure 5 Is a perspective view of a part of an optical element driving mechanism according to some embodiments of the present utility model.

[0021] Figure 6 Shows along Figure 1 A partial cross-sectional view of the optical element driving mechanism taken along line A-A'.

[0022] Figure 7 Shows an exploded schematic view of a first optical element corresponding to the opening of the first circuit member.

[0023] Figure 8 Shows a bottom view of an optical element driving mechanism according to some embodiments of the present utility model.

[0024] Figure 9 Is along Figure 1 A cross-sectional view of the optical element driving mechanism taken along line B-B' in

[0025] Figure 10 Shows a top view of a part of an optical element driving mechanism according to some embodiments of the present utility model.

[0026] Figure 11 Is along Figure 1 A cross-sectional view of the optical element driving mechanism taken along line C-C' in

[0027] Figure 12A Shows a schematic side view of a second driving part and corresponding elements according to an embodiment of the present utility model.

[0028] Figure 12B Shows a schematic side view of a second driving part and corresponding elements according to another embodiment of the present utility model.

[0029] Figure 13 Shows a block diagram of an optical element driving mechanism according to some embodiments of the present utility model.

[0030] Figure 14It is a perspective view of an optical element driving mechanism according to another embodiment of the present utility model.

[0031] The reference numerals are explained as follows:

[0032] 1000, 1000B: Optical element driving mechanism

[0033] 1100: Fixed part

[0034] 1101: First side

[0035] 1102: Second side

[0036] 1103: Third side

[0037] 1104: Fourth side

[0038] 1110: Housing

[0039] 1111: Top surface

[0040] 1112: External interface

[0041] 1113: Accommodating space

[0042] 1120, 1120B: Frame

[0043] 1121: First support part

[0044] 1122: Second support part

[0045] 1122-1: Frame surface

[0046] 1200: First movable part

[0047] 1300: Second movable part

[0048] 1400: First driving component

[0049] 1410: First driving part

[0050] 1411: First magnetic element

[0051] 1412: First coil

[0052] 1413: Second coil

[0053] 1420, 1420A: Second driving part

[0054] 1421: Second magnetic element

[0055] 1421-1, 1421-1A: First magnetic part

[0056] 1421-11A: First magnetic surface

[0057] 1421-12A: Second magnetic surface

[0058] 1421-2, 1421-2A: Second magnetic part

[0059] 1421-21A: Third magnetic surface

[0060] 1421-22A: Fourth magnetic surface

[0061] 1422, 1422A: Third coil

[0062] 1500: First circuit component

[0063] 1510, 1510B: First circuit part

[0064] 1511: Opening

[0065] 1512: External circuit

[0066] 1520: Second circuit part

[0067] 1530: Opening

[0068] 1531: First boundary

[0069] 1532: Second boundary

[0070] 1540: Flexible part

[0071] 1600: Second driving component

[0072] 1610: Magnetic element

[0073] 1620: Coil

[0074] 1630: Magnetic conduction element

[0075] 1700: Second circuit component

[0076] 1810: First support component

[0077] 1811: Intermediate element

[0078] 1812: Force-applying element

[0079] 1813, 1813A: Corresponding element

[0080] 1813-1: Corresponding surface

[0081] 1820: Second support component

[0082] 1830, 1830B: Third support component

[0083] 1910, 1920, 1930, 1940: Sensing element

[0084] 2000: First optical element

[0085] 3000: Second optical element

[0086] 4000: Optical module

[0087] C: Spindle

[0088] C1, C2: Geometric center

[0089] D1, D2: Shortest distance

[0090] X, Y, Z: Axes Detailed implementation manners

[0091] 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 is understood that these terms, such as those defined in a commonly used dictionary, should be interpreted as having a meaning consistent with the context of the related art and the background or context of the present invention, and should not be interpreted in an idealized or overly formal manner, unless specifically defined herein.

[0092] Furthermore, the ordinal numbers such as "first", "second", etc. used in the specification and claims are used to modify the elements of the claims, and do not themselves imply or represent that the claimed element has any previous ordinal number, nor do they represent the order of one claimed element and another claimed element, or the order in the manufacturing method. The use of these ordinal numbers is only to clearly distinguish one claimed element with a certain name from another claimed element with the same name.

[0093] In addition, in some embodiments of the present invention, terms related to joining and connecting, such as "connect" and "interconnect", unless specifically defined, may refer to two structures in direct contact, or may also refer to two structures not in direct contact, with other structures disposed therebetween. And these terms related to joining and connecting may also include the cases where both structures are movable, or both structures are fixed.

[0094] Figure 1 is a perspective view of the optical element driving mechanism 1000 according to some embodiments of the present invention. Figure 2 is an exploded view of the optical element driving mechanism 1000 according to some embodiments of the present invention. Please first refer to Figure 1 and Figure 2 .

[0095] As Figure 1 and Figure 2As shown, the optical element driving mechanism 1000 includes a fixed part 1100, a first movable part 1200, a second movable part 1300, a first driving component 1400, a first circuit member 1500, a second driving component 1600, a second circuit member 1700, a first support component 1810, a second support component 1820, a third support component 1830, and four sensing elements 1910, 1920, 1930, 1940.

[0096] As Figure 1 shown, according to some embodiments of the present invention, the fixed part 1100 has a main shaft C, a first side 1101, a second side 1102, a third side 1103, and a fourth side 1104. The main shaft C can be regarded as a geometric central axis passing through the optical element driving mechanism 1000.

[0097] According to some embodiments of the present invention, the first side 1101 is adjacent to the second side 1102. The third side 1103 is adjacent to the fourth side 1104. The first side 1101 and the third side 1103 are opposite sides of the fixed part 1100. The second side 1102 and the fourth side 1104 are opposite sides of the fixed part 1100.

[0098] As Figure 2 shown, according to some embodiments of the present invention, the fixed part 1100 includes a housing 1110 and a frame 1120. The housing 1110 is fixedly connected to the frame 1120 to form a space for accommodating other elements of the optical element driving mechanism 1000.

[0099] According to some embodiments of the present invention, the first movable part 1200 is used to connect the first optical element 2000 ( Figure 7 , Figure 13 ). In this embodiment, the first optical element 2000 is a photosensitive element. The first movable part 1200 can rotate and translate relative to the fixed part 1100 to achieve the optical effect of optical image stabilization (OIS).

[0100] According to some embodiments of the present invention, the second movable part 1300 is used to connect the second optical element 3000 ( Figure 13 ). In this embodiment, the second optical element 3000 is a lens assembly. The second movable part 1300 can move relative to the fixed part 1100 on the Z-axis to achieve the optical effect of auto focus (AF).

[0101] According to some embodiments of the present utility model, a first driving assembly 1400 is used to drive a first movable part 1200 to move relative to a fixed part 1100. The first driving assembly 1400 includes a first driving part 1410 and a second driving part 1420. A first circuit member 1500 movably connects the first movable part 1200 to a frame 1120 of the fixed part 1100. The first circuit member 1500 corresponds to a first optical element 2000( Figure 7 ).

[0102] As Figure 2 shown, the first driving part 1410 includes a first magnetic element 1411, a first coil 1412, and a second coil 1413. The second driving part 1420 includes a second magnetic element 1421 and a third coil 1422.

[0103] According to some embodiments of the present utility model, the first magnetic element 1411 and the second magnetic element 1421 are disposed on the frame 1120 of the fixed part 1100. The first coil 1412, the second coil 1413, and the third coil 1422 are disposed on the first circuit member 1500. The first coil 1412, the second coil 1413, and the third coil 1422 are independently controlled.

[0104] In this way, when a driving signal is applied to the first driving assembly 1400 (for example, current is applied through an external power source), the first driving part 1410 and the second driving part 1420 respectively generate electromagnetic induction acting forces, and drive the first movable part 1200 to move relative to the fixed part 1100, so as to achieve the required optical effect.

[0105] For example, the electromagnetic induction acting forces generated between the first coil 1412, the second coil 1413 and the first magnetic element 1411, and between the third coil 1422 and the second magnetic element 1421 can drive the first movable part 1200 to rotate counterclockwise or clockwise relative to the fixed part 1100.

[0106] Alternatively, the electromagnetic induction acting forces generated between the second coil 1413 and the first magnetic element 1411, and between the third coil 1422 and the second magnetic element 1421 can drive the first movable part 1200 to translate in the XY plane relative to the fixed part 1100.

[0107] According to some embodiments of the present utility model, the second driving assembly 1600 is used to drive the second movable part 1300 to move relative to the fixed part 1100. The second driving assembly 1600 includes a magnetic element 1610, a coil 1620, and a magnetic conductive element 1630. The magnetic element 1610 is disposed on the second movable part 1300. The coil 1620 and the magnetic conductive element 1630 are disposed on two opposite surfaces of the second circuit member 1700.

[0108] In this way, when a driving signal is applied to the second driving assembly 1600 (for example, current is applied through an external power source), an electromagnetic induction force is generated between the coil 1620 and the magnetic element 1610, and the second movable part 1300 is driven to move relative to the fixed part 1100 in the Z-axis direction to achieve the required optical effect.

[0109] According to some embodiments of the present utility model, the second circuit member 1700 is disposed on the frame 1120 of the fixed part 1100. The coil 1620 is electrically connected to the second circuit member 1700.

[0110] According to some embodiments of the present utility model, the first support assembly 1810 supports the first movable part 1200 to move relative to the fixed part 1100. That is to say, the first movable part 1200 can move relative to the fixed part 1100 via the first support assembly 1810. The first support assembly 1810 includes an intermediate element 1811, a force applying element 1812, and a corresponding element 1813, and the details will be described later with reference to Figure 11 Detailed description.

[0111] According to some embodiments of the present utility model, the second support assembly 1820 supports the second movable part 1300 to move relative to the fixed part 1100. In this embodiment, the second support assembly 1820 can be a pair of guide rods. The second support assembly 1820 is disposed on the frame 1120 on the side corresponding to the magnetic element 1610.

[0112] In this way, an attractive force is generated between the magnetic element 1610 disposed on the second movable part 1300 and the magnetic conductive element 1630 disposed on the frame 1120 (the magnetic conductive element 1630 is indirectly disposed on the frame 1120 through the second circuit member 1700), so that the second movable part 1300 abuts against the second support assembly 1820, making the movement of the second movable part 1300 relative to the fixed part 1100 smoother and less likely to shake, overturn, etc., thereby improving the accuracy of autofocus. According to some embodiments of the present utility model, the third support assembly 1830 is a reed that is movably connected to the frame 1120 and the second movable part 1300.

[0113] According to some embodiments of the present invention, the sensing elements 1910, 1920, and 1930 are all disposed on the first circuit member 1500, wherein the sensing element 1910 is positioned in the hollow position of the annular structure of the first coil 1412, the sensing element 1920 is positioned in the hollow position of the annular structure of the second coil 1413, and the sensing element 1930 is positioned in the hollow position of the annular structure of the third coil 1422.

[0114] According to some embodiments of the present invention, the sensing elements 1910, 1920 correspond to the first magnetic element 1411. The sensing element 1930 corresponds to the second magnetic element 1421. In detail, the sensing elements 1910, 1920 can sense the magnetic field change of the first magnetic element 1411, the sensing element 1930 can sense the magnetic field change of the second magnetic element 1421, and a control element (not shown) is used to determine the position of the first moving part 1200 relative to the fixed part 1100.

[0115] According to some embodiments of the present invention, the sensing element 1910 can sense the rotational movement of the first moving part 1200 relative to the fixed part 1100. The sensing elements 1920, 1930 can sense the translational movement of the first moving part 1200 relative to the fixed part 1100 in the XY plane.

[0116] According to some embodiments of the present invention, the sensing element 1940 is disposed on the second circuit member 1700, wherein the sensing element 1940 is positioned in the hollow position of the annular structure of the coil 1620. The sensing element 1940 can be an all-in-one integrated circuit (All-in-one IC) that encapsulates the sensing integrated circuit and the control integrated circuit in the same package, and the sensing element 1940 determines the position of the second moving part 1300 by sensing the magnetic field change of the magnetic element 1610, and then controls the second moving part 1300 to move to the desired position to achieve closed-loop control.

[0117] Figure 3 A perspective view of the optical element driving mechanism 1000 without showing the housing 1110. Figure 4 A perspective view of a part of the first circuit member 1500 according to some embodiments of the present invention. Figure 5 A perspective view of a part of the optical element driving mechanism 1000 according to some embodiments of the present invention. Please refer to the following in combination Figures 3 to 5 .

[0118] As Figures 3 through 5 shown in, the frame 1120 includes a first support portion 1121 and a second support portion 1122. The first circuit member 1500 includes two first circuit portions 1510, a second circuit portion 1520, an opening 1530, and two flexible portions 1540.

[0119] According to some embodiments of the present utility model, the first circuit member 1500 is used for electrically connecting to an external circuit (not shown). The first circuit portion 1510 is the portion of the first circuit member 1500 disposed on the second support portion 1122 of the frame 1120.

[0120] Each of the two first circuit portions 1510 includes an opening 1511 and a pair of external circuits 1512 ( Figure 1 ). The first support portion 1121 protrudes from the second support portion 1122, and the first support portion 1121 passes through the opening 1511 of the first circuit portion 1510 to position the first circuit portion 1510 on the second support portion 1122.

[0121] According to some embodiments of the present utility model, the second circuit portion 1520 of the first circuit member 1500 is connected to the first movable portion 1200. The second circuit portion 1520 is parallel to the first circuit portion 1510. The opening 1530 of the first circuit member 1500 is positioned on the second circuit portion 1520 and corresponds to the first optical element 2000 ( Figure 7 ).

[0122] According to some embodiments of the present utility model, both ends of the flexible portion 1540 of the first circuit member 1500 are respectively movably connected to the first circuit portion 1510 and the second circuit portion 1520, so that the first movable portion 1200 can move relative to the frame 1120. The flexible portion 1540 is not parallel to the first circuit portion 1510 and the second circuit portion 1520.

[0123] Please temporarily refer back to Figure 1 . The housing 1110 includes a top surface 1111. The top surface 1111 includes two external interfaces 1112. The top surface 1111 can be made of a metallic material. From Figure 1 it is also possible to see the external circuits 1512 of the first circuit portion 1510. When observed along the -Z axis direction, the external circuits 1512 are at least partially exposed at the external interfaces 1112 of the top surface 1111.

[0124] Figure 6 Shows a partial cross-sectional view of the optical element driving mechanism 1000 taken along the line A - A' of Figure 1 . As shown in Figure 6 , the housing 1110 further includes a receiving space 1113. The frame 1120 is disposed in the receiving space 1113 of the housing 1110. The second support portion includes a frame surface 1122-1. The frame surface 1122-1 faces the top surface 1111 of the housing 1110.

[0125] According to some embodiments of the present utility model, the frame 1120 can be made of materials such as resin. AsFigure 6 As shown, the first circuit portion 1510 has a plate-like structure. The first circuit portion 1510 is at least partially located between the housing 1110 and the frame 1120. The first support portion 1121 of the frame 1120 directly contacts the top surface 1111 of the housing 1110.

[0126] As Figure 6 shown, the first support portion 1121 of the frame 1120 protrudes from the frame surface 1122-1. The second support portion 1122 of the frame 1120 corresponds to the first circuit portion 1510. The shortest distance between the first support portion 1121 and the top surface 1111 is less than the shortest distance between the second support portion 1122 and the top surface 1111.

[0127] As Figure 6 shown, since the first support portion 1121 passes through the opening 1511 of the first circuit portion 1510 ( Figure 4 ), when viewed in the direction parallel to the frame surface 1122-1 (e.g., the direction of the X-axis), the first circuit portion 1510 and the first support portion 1121 at least partially overlap.

[0128] As Figure 6 shown, since the first circuit portion 1510 is disposed above the second support portion 1122, when viewed in the direction parallel to the frame surface 1122-1 (e.g., the direction of the X-axis), the first circuit portion 1510 and the second support portion 1122 do not overlap.

[0129] As Figure 6 shown, since the second support portion 1122 is designed to provide support during welding of the first circuit portion 1510, the shortest distance between the first circuit portion 1510 and the top surface 1111 is different from the shortest distance between the first circuit portion 1510 and the second support portion 1122. Specifically, the shortest distance between the first circuit portion 1510 and the top surface 1111 is greater than the shortest distance between the first circuit portion 1510 and the second support portion 1122.

[0130] Please temporarily refer to Figure 1 and Figure 5 , when viewed in the direction perpendicular to Figure 6 the frame surface 1122-1 (e.g., the direction of the -Z axis), the second support portion 1122 and the external interface 1112 of the housing 1110 at least partially overlap.

[0131] Figure 7 An exploded schematic diagram of the first optical element 2000 corresponding to the opening 1530 of the first circuit member 1500 is shown. As Figure 7As shown, the geometry of the first optical element 2000 corresponds to the geometry of the opening 1530 of the first circuit member 1500.

[0132] As Figure 7 shown, when viewed along the main axis C (Z-axis), both the opening 1530 of the first circuit member 1500 and the first optical element 2000 have a polygonal structure. More specifically, in this embodiment, both the opening 1530 of the first circuit member 1500 and the first optical element 2000 are quadrilateral structures.

[0133] Figure 8 Showing a bottom view of the optical element driving mechanism 1000 according to some embodiments of the present invention. As Figure 7 stated, since the geometry of the first optical element 2000 corresponds to the geometry of the opening 1530 of the first circuit member 1500, the geometry of the opening 1530 can be regarded as the geometry of the first optical element 2000 ( Figure 7 ).

[0134] As Figure 8 shown, when viewed along the main axis C ( Figure 1 ), the geometric center C1 of the fixing portion 1100 does not overlap with the geometric center C2 of the opening 1530 of the first circuit member 1500. Since the geometry of the first optical element 2000 ( Figure 7 ) corresponds to the geometry of the opening 1530 of the first circuit member 1500, it can be understood that when viewed along the main axis C ( Figure 1 ), the geometric center of the fixing portion 1100 also does not overlap with the geometric center of the first optical element 2000.

[0135] As Figure 8 shown, when viewed along the main axis C ( Figure 1 ), the geometric centers of both the fixing portion 1100 and the first movable portion 1200 are generally located at the position of the geometric center C1. When viewed along the main axis C ( Figure 1 ), the geometric center C2 of the opening 1530 does not overlap with the geometric center C1 of the first movable portion 1200.

[0136] Since the geometry of the first optical element 2000 ( Figure 7 ) corresponds to the geometry of the opening 1530 of the first circuit member 1500, it can be understood that when viewed along the main axis C ( Figure 1 ), the geometric center C1 of the first movable portion 1200 also does not overlap with the geometric center of the first optical element 2000.

[0137] Figure 9 To be along Figure 1Cross-sectional view of the optical element driving mechanism 1000 taken along line B-B' in []. As Figure 9 As shown in [], the opening 1530 includes a first boundary 1531 and a second boundary 1532. When viewed along the main axis C (Z-axis), the length of the first boundary 1531 is greater than the length of the second boundary 1532.

[0138] As Figure 9 shown in [], when viewed along the main axis C (Z-axis), the first boundary 1531 is adjacent to the first side 1101 of the fixing portion 1100. When viewed along the main axis C, the second boundary 1532 is adjacent to the second side 1102 of the fixing portion 1100.

[0139] As Figure 9 shown in [], when viewed along the main axis C (Z-axis), the first coil 1412 and the second coil 1413 of the first driving portion 1410 are located on the first side 1101. When viewed along the main axis C, the second driving portion 1420 is located on the second side 1102. When viewed along the main axis C, the shortest distance between the first boundary 1531 and the first side 1101 is different from the shortest distance between the second boundary 1532 and the second side 1102.

[0140] As Figure 9 shown in [], when viewed along the main axis C (Z-axis), in the extending direction of the first side 1101 (the direction of the X-axis), the maximum dimension of the first coil 1412 is different from the maximum dimension of the second coil 1413. Specifically, when viewed along the main axis C, in the extending direction of the first side 1101, the maximum dimension of the first coil 1412 is smaller than the maximum dimension of the second coil 1413.

[0141] As Figure 9 shown in [], when viewed along the main axis C (Z-axis), the third coil 1422 is located on the second side 1102. When viewed along the main axis C, the shortest distance between the first coil 1412 and the third coil 1422 is different from the shortest distance between the second coil 1413 and the third coil 1422. When viewed along the main axis C, the shortest distance between the first coil 1412 and the third coil 1422 is greater than the shortest distance between the second coil 1413 and the third coil 1422.

[0142] As Figure 9 shown in [], when viewed along the main axis C, the first boundary 1531 is parallel to the first side 1101, and the second boundary 1532 is parallel to the second side 1102. When viewed along the main axis C, the shortest distance between the first boundary 1531 and the first side 1101 is greater than the shortest distance between the second boundary 1532 and the second side 1102.

[0143] In this way, although the first coil 1412 and the second coil 1413 on the same side generate more heat on the first side 1101, since they are at a relatively large distance from the first optical element 2000( Figure 7 ) in the Y-axis direction, the thermal influence on the first optical element 2000( Figure 7 ) is reduced, and it also helps to dissipate the heat of the first optical element 2000( Figure 7 ).

[0144] In addition, although the first coil 1412 and the second coil 1413 on the same side generate more interference on the first side 1101, due to their relatively large distance from the first optical element 2000( Figure 7 ) in the Y-axis direction, the signal interference problem is effectively improved.

[0145] Figure 10 The upper view of the optical element driving mechanism 1000 showing a part according to some embodiments of the present invention is presented. When observed along the main axis C (Z-axis), the area of the first magnetic element 1411 is different from the area of the second magnetic element 1421. When observed along the main axis C, the area of the first magnetic element 1411 is larger than the area of the second magnetic element 1421.

[0146] Figure 11 FIG. Figure 1 is a cross-sectional view of the optical element driving mechanism 1000 taken along the line C-C' in Figure 11 . As shown in Figure 11 , the intermediate element 1811 can be a ball. The force-applying element 1812 can be a magnetic-conductive element made of a magnetic-conductive material (for example, an alloy including elements such as iron, nickel, etc.). The force-applying element 1812 corresponds to the second magnetic element 1421 to generate a first stable force. The force-applying element 1812 is used to apply a first stable force to the first movable part 1200 to make the intermediate element 1811 contact the corresponding element 1813.

[0147] As shown in Figure 11 , the second magnetic element 1421 includes a first magnetic part 1421-1 and a second magnetic part 1421-2. The corresponding element 1813 is disposed on the first magnetic part 1421-1. When observed along the main axis C( Figure 1 ) or the Y-axis, the corresponding element 1813 is located between the first magnetic part 1421-1 and the second magnetic part 1421-2.

[0148] According to some embodiments of the present utility model, since a non-magnetic region is required between the first magnetic part 1421-1 and the second magnetic part 1421-2, the corresponding element 1813 is provided between the first magnetic part 1421-1 and the second magnetic part 1421-2. The corresponding element 1813 can be made of a metallic material. The corresponding element 1813 corresponds to the intermediate element 1811. The corresponding element 1813 can move relative to the intermediate element 1811.

[0149] In addition, since the lengths of the first magnetic part 1421-1 and the second magnetic part 1421-2 are too long and prone to breakage, by arranging the corresponding element 1813 between the first magnetic part 1421-1 and the second magnetic part 1421-2, the overall structure of the second magnetic element 1421 can be strengthened.

[0150] As Figure 11 shown, the third coil 1422 is located between the force-applying element 1812 and the second magnetic element 1421. When observing along the main axis C (Z-axis), the intermediate element 1811 at least partially overlaps the space surrounded by the third coil 1422. When observing along a direction perpendicular to the main axis (e.g., the X-axis), the intermediate element 1811 and the third coil 1422 at least partially overlap. As Figure 11 shown, the corresponding element 1813 includes a corresponding surface 1813-1. The corresponding surface 1813-1 faces the intermediate element 1811.

[0151] Figure 12A Schematic side view showing the second driving part 1420 and the corresponding element 1813 according to an embodiment of the present utility model. As Figure 12A shown, the magnetic pole arrangement direction of the first magnetic part 1421-1 is opposite to the magnetic pole arrangement direction of the second magnetic part 1421-2. It should be understood that the magnetic pole arrangement direction described herein is defined as the direction in which the S pole faces the N pole.

[0152] As Figure 12A shown, the corresponding surface 1813-1 is not parallel to the magnetic pole arrangement direction of the first magnetic part 1421-1. Although not clearly shown in Figure 11 it should be understood that in the magnetic pole arrangement direction of the first magnetic part 1421-1, the maximum dimension of the first magnetic part 1421-1 is different from the maximum dimension of the corresponding element 1813. In detail, as Figure 12A shown, in the magnetic pole arrangement direction of the first magnetic part 1421-1, the maximum dimension of the first magnetic part 1421-1 is greater than the maximum dimension of the corresponding element 1813.

[0153] Figure 12B Schematic side view showing the second driving part 1420A and the corresponding element 1813A according to another embodiment of the present utility model. AsFigure 12B As shown, the first magnetic part 1421-1A includes a first magnetic surface 1421-11A and a second magnetic surface 1421-12A. The first magnetic surface 1421-11A faces the third coil 1422A, while the second magnetic surface 1421-12A faces in the opposite direction to the first magnetic surface 1421-11A.

[0154] As Figure 12B shown, the second magnetic part 1421-2A includes a third magnetic surface 1421-21A and a fourth magnetic surface 1421-22A. The third magnetic surface 1421-21A faces the third coil 1422A, and the fourth magnetic surface 1421-22A faces in the opposite direction to the third magnetic surface 1421-21A.

[0155] In Figure 12B the embodiment shown, the shortest distance D1 between the first magnetic surface 1421-11A and the third magnetic surface 1421-21A is different from the shortest distance D2 between the second magnetic surface 1421-12A and the fourth magnetic surface 1421-22A. More specifically, the shortest distance D1 between the first magnetic surface 1421-11A and the third magnetic surface 1421-21A is less than the shortest distance D2 between the second magnetic surface 1421-12A and the fourth magnetic surface 1421-22A.

[0156] Figure 13 A block diagram showing an optical element driving mechanism 1000 according to some embodiments of the present invention. As Figure 13 shown, the first movable part 1200 is connected to the first optical element 2000. The second movable part 1300 is connected to the second optical element 3000, and an optical module 4000 as an aperture module is disposed on the second movable part 1300 to control the amount of incident light entering the optical element driving mechanism 1000.

[0157] Please temporarily refer back to Figure 1 . In Figure 1 the embodiment shown, the optical element driving mechanism 1000 further includes a third circuit member (not shown), and this third circuit member is used for electrically connecting with the optical module 4000 ( Figure 13 ). In this embodiment, the optical module 4000 is electrically connected to the external circuit 1512 of the first circuit part 1510 through the third circuit member from above the housing 1110 through the external interface 1112. Therefore, it can be understood that when observing along the direction of the vertical main axis C (for example, the X-axis or the Y-axis), the top surface 1111 of the housing 1110 will be at least partially located between the first circuit part 1510 and the aforementioned third circuit member.

[0158] Figure 14is a perspective view of an optical element driving mechanism 1000B according to another embodiment of the present utility model. In Figure 14 the shown embodiment, the third support assembly 1830B will serve as a third circuit member for electrically connecting to the optical module 4000 ( Figure 13 ). As shown in Figure 14 , when observed along the direction perpendicular to the main axis (e.g., the X-axis or Y-axis), the third support assembly 1830B (the third circuit member) is at least partially located between the first circuit portion 1510B and the frame 1120B.

[0159] In summary, the driving assembly of the present utility model adopts an asymmetric setting, and the photosensitive element is arranged eccentrically relative to the fixed portion. Such a design enables the driving assembly of the present utility model to move the movable portion relative to the fixed portion with a relatively large driving force. Although the two coils (the first coil and the second coil) of the first driving portion are located on the same side and generate more heat, since they are far from the eccentric photosensitive element, the thermal influence on the photosensitive element is reduced, and it also helps the heat dissipation of the photosensitive element. Moreover, although there will be more signal interference between the two coils due to the electromagnetic field, since they are at a relatively large distance from the photosensitive element, the signal interference problem is effectively improved. In addition, the eccentric design of the photosensitive element enables more effective utilization of the internal space of electronic devices such as mobile phones, thereby increasing the screen-to-body ratio, making the display area of the mobile phone larger and bringing a better visual effect.

[0160] Although the embodiments of the present utility model and their advantages have been disclosed above, it should be understood that any person of ordinary skill in the art can make changes, substitutions, and modifications without departing from the spirit and scope of the present utility model. In addition, each claim constitutes an individual embodiment, and the protection scope of the present utility model also includes the combination of each claim and embodiment.

Claims

1. An optical element driving mechanism, characterized in that, Comprising: A first movable part for connecting a first optical element; A fixed part having a main axis, wherein the first movable part can move relative to the fixed part; And A first driving component for driving the first movable part to move relative to the fixed part; Wherein, when observed along the main axis, the geometric center of the fixed part does not overlap with the geometric center of the first optical element; when observed along the main axis, the first optical element has a polygonal structure; when observed along the main axis, the geometric center of the first movable part does not overlap with the geometric center of the first optical element.

2. The optical element driving mechanism according to claim 1, characterized in that, Further comprising a first circuit member, the first circuit member including an opening corresponding to the first optical element, the fixed part having a first side and a second side; Wherein, when observed along the main axis, the opening has a polygonal structure, and the geometric center of the opening does not overlap with the geometric center of the first movable part; Wherein, when observed along the main axis, the opening includes a first boundary and a second boundary, and the length of the first boundary is greater than the length of the second boundary; Wherein, when observed along the main axis, the first boundary is adjacent to the first side of the fixed part; Wherein, when observed along the main axis, the second boundary is adjacent to the second side of the fixed part.

3. The optical element driving mechanism according to claim 2, wherein, The first driving component includes a first driving part and a second driving part. When observed along the main axis, the first driving part is located on the first side; when observed along the main axis, the second driving part is located on the second side; when observed along the main axis, the shortest distance between the first boundary and the first side is different from the shortest distance between the second boundary and the second side; when observed along the main axis, the first boundary is parallel to the first side, and the second boundary is parallel to the second side; when observed along the main axis, the shortest distance between the first boundary and the first side is greater than the shortest distance between the second boundary and the second side. Wherein, the first driving part includes a first magnetic element, a first coil and a second coil, the second driving part includes a second magnetic element and a third coil. When observed along the main axis, the area of the first magnetic element is different from the area of the second magnetic element; when observed along the main axis, the area of the first magnetic element is greater than the area of the second magnetic element; when observed along the main axis, the first coil and the second coil are located on the first side; when observed along the main axis, in the extending direction of the first side, the maximum dimension of the first coil is different from the maximum dimension of the second coil; when observed along the main axis, in the extending direction of the first side, the maximum dimension of the first coil is less than the maximum dimension of the second coil; when observed along the main axis, the third coil is located on the second side; when observed along the main axis, the shortest distance between the first coil and the third coil is different from the shortest distance between the second coil and the third coil; when observed along the main axis, the shortest distance between the first coil and the third coil is greater than the shortest distance between the second coil and the third coil.

4. The optical element driving mechanism according to claim 3, wherein Further included is a first support assembly. The first movable part can move relative to the fixed part via the first support assembly. The first support assembly includes: An intermediate element; A corresponding element corresponding to the intermediate element and movable relative to the intermediate element; and A force - applying element for applying a first stabilizing force to the first movable part to make the intermediate element contact the corresponding element; Wherein, the force - applying element corresponds to the second magnetic element to generate the first stabilizing force. The force - applying element has a magnetic - conductive material, and the third coil is located between the force - applying element and the second magnetic element; when observed along the main axis, at least part of the intermediate element overlaps the space surrounded by the third coil; when observed along the direction perpendicular to the main axis, at least part of the intermediate element overlaps with the third coil.

5. The optical element driving mechanism according to claim 4, wherein, The second magnetic element includes a first magnetic part and a second magnetic part. The corresponding element is arranged on the first magnetic part; the corresponding element has a metal material; when observed along the main axis, the corresponding element is located between the first magnetic part and the second magnetic part; the magnetic - pole arrangement direction of the first magnetic part is opposite to the magnetic - pole arrangement direction of the second magnetic part; a corresponding surface of the corresponding element faces the intermediate element, and the corresponding surface is not parallel to the magnetic - pole arrangement direction of the first magnetic part; in the magnetic - pole arrangement direction of the first magnetic part, the maximum dimension of the first magnetic part is different from the maximum dimension of the corresponding element.

6. The optical element driving mechanism according to claim 5, wherein, In the magnetic - pole arrangement direction of the first magnetic part, the maximum dimension of the first magnetic part is greater than the maximum dimension of the corresponding element; Wherein, the first magnetic part includes a first magnetic surface and a second magnetic surface. The first magnetic surface faces the third coil, and the second magnetic surface faces the opposite direction to the first magnetic surface; Wherein, the second magnetic part includes a third magnetic surface and a fourth magnetic surface. The third magnetic surface faces the third coil, and the fourth magnetic surface faces the opposite direction to the third magnetic surface; Wherein, the shortest distance between the first magnetic surface and the third magnetic surface is different from the shortest distance between the second magnetic surface and the fourth magnetic surface, and the shortest distance between the first magnetic surface and the third magnetic surface is less than the shortest distance between the second magnetic surface and the fourth magnetic surface.

7. The optical element driving mechanism according to claim 1, characterized in that, Further included is a first circuit component for electrically connecting to an external circuit. The first circuit component includes a first circuit part. The first circuit part includes an external circuit. Wherein, the fixed part includes: A housing having a top surface and a receiving space. The top surface includes an external interface and the top surface has a metal material; and A frame arranged in the receiving space of the housing. The frame includes a frame surface, a first support part and a second support part; Among them, at least a part of the first circuit portion is located between the housing and the frame, the external circuit is at least partially exposed at the external interface on the top surface, the first circuit portion has a plate-like structure, the frame is made of a resin material, the frame surface of the frame faces the top surface of the housing, the first support portion of the frame directly contacts the top surface, the first support portion protrudes from the frame surface, the second support portion of the frame corresponds to the first circuit portion, the shortest distance between the first support portion and the top surface is less than the shortest distance between the second support portion and the top surface; when observed along a direction parallel to the frame surface, at least a part of the first circuit portion overlaps with the first support portion; when observed along a direction parallel to the frame surface, the first circuit portion does not overlap with the second support portion; when observed along a direction perpendicular to the frame surface, the second support portion at least partially overlaps with the external interface; the shortest distance between the first circuit portion and the top surface is different from the shortest distance between the first circuit portion and the second support portion; the shortest distance between the first circuit portion and the top surface is greater than the shortest distance between the first circuit portion and the second support portion.

8. The optical element driving mechanism according to claim 7, wherein, It further includes a second movable portion, a second circuit member, and a third circuit member. The second circuit member is disposed on the second movable portion. The third circuit member is movably connected to the frame and the second movable portion. The third circuit member is used for electrically connecting to an optical module, and at least a part of the third circuit member is located between the first circuit portion and the frame.

9. The optical element driving mechanism according to claim 7, characterized in that, It further includes a second movable portion, a second circuit member, and a third circuit member. The second circuit member is disposed on the second movable portion. The third circuit member is used for electrically connecting to an optical module, and at least a part of the top surface is located between the first circuit portion and the third circuit member.

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