Optical element driving mechanism

Abstract

An optical element driving mechanism comprises a fixed part, a movable part and a first driving assembly. The movable part is connected with an optical element with an optical axis. The movable part can move relative to the fixed part. The first driving assembly is configured to drive the movable part to move relative to the fixed part.

Description

Technical Field

[0001] The present invention relates to an optical element driving mechanism, and in particular to an optical element driving mechanism with a driving component. Background Art

[0002] With the development of technology, many electronic devices (such as smart phones or digital cameras) now have the function of taking photos or recording videos. These electronic devices are becoming more and more popular and are developing in the direction of convenient and thinner designs to provide users with more choices.

[0003] The aforementioned electronic devices with camera or video recording functions are usually equipped with an optical element driving mechanism, and light can pass through the optical elements (e.g., shutter blades, filters, lenses, etc.) to form an image on the photosensitive element. The current trend of mobile devices is miniaturization and lightness, so how to effectively miniaturize and lighten the optical element driving mechanism has become an important issue. Summary of the invention

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

[0005] The present disclosure provides an optical element driving mechanism. The optical element driving mechanism includes a fixed part, a movable part and a first driving component. The movable part is connected to an optical element having an optical axis. The movable part can move relative to the fixed part. The first driving component is configured to drive the movable part to move relative to the fixed part.

[0006] According to some embodiments of the present disclosure, the first driving component includes a first magnetic element, a first coil and a second coil. The first coil and the second coil correspond to the first magnetic element. The winding axes of the first coil and the second coil are not parallel to each other, and when observed along the optical axis, the first coil and the second coil at least partially overlap.

[0007] According to some embodiments of the present disclosure, the shortest distance between the first coil and the first magnetic element is different from the shortest distance between the second coil and the first magnetic element.

[0008] According to some embodiments of the present disclosure, the first magnetic element includes a first surface and a second surface. The first surface faces the first coil, the second surface faces the second coil, and the first surface and the second surface face different directions.

[0009] According to some embodiments of the present disclosure, the first coil and the second coil are respectively used to generate a driving force to enable the movable portion to move relative to the fixed portion in a first dimension.

[0010] According to some embodiments of the present disclosure, the optical element driving mechanism further includes a position sensing element for sensing the movement of the movable portion. The first surface of the first magnetic element faces the position sensing element.

[0011] According to some embodiments of the present disclosure, when the movable portion moves in the first dimension, the shortest distance between the first surface of the first magnetic element and the first coil changes. When the movable portion moves in the first dimension, the shortest distance between the second surface of the first magnetic element and the second coil does not change.

[0012] According to some embodiments of the present disclosure, the first coil and the second coil have different structures. The thickness of the first coil and the second coil are different. When viewed along the optical axis, the first coil and the position sensing element at least partially overlap, and the first coil and the second coil are electrically connected in series.

[0013] According to some embodiments of the present disclosure, the first drive component further includes a second magnetic element, a third coil and a fourth coil. The third coil and the fourth coil correspond to the second magnetic element. The first magnetic element is parallel to the second magnetic element. The winding axes of the third coil and the fourth coil are not parallel to each other, and the first coil, the second coil, the third coil and the fourth coil are electrically connected in series. When observed along the optical axis, the first magnetic element and the second magnetic element are located on both sides of the optical axis.

[0014] According to some embodiments of the present disclosure, the first drive assembly further includes a third magnetic element, a fifth coil, and a sixth coil. The third magnetic element is not parallel to the first magnetic element and the second magnetic element. The fifth coil and the sixth coil correspond to the third magnetic element, so that the movable part moves in a second dimension, and the second dimensional movement is different from the first dimensional movement.

[0015] The beneficial effect of the present invention is that the special configuration of the driving assembly of the present invention enables the optical element driving mechanism of the present invention to drive the large-mass movable part with a small and lightweight driving assembly. In addition, through the optimization of the structural design, the present invention reduces multiple complex components and reduces the difficulty of assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The following will be described in detail with reference to the accompanying drawings. It should be noted that, in accordance with standard practice in the industry, various features are not shown in proportion and are only used for illustration. In fact, the size of the elements may be arbitrarily enlarged or reduced to clearly show the features of the present disclosure.

[0017] Figure 1 is a stereoscopic diagram of an optical element driving mechanism according to some embodiments of the present disclosure.

[0018] Figure 2 is an exploded view of an optical element driving mechanism according to some embodiments of the present disclosure.

[0019] Figure 3AA three-dimensional view showing a portion of a first driving assembly, a first circuit element, a second circuit element, and a position sensing element disposed on a base.

[0020] Figure 3B An exploded view showing a first driving assembly, a first circuit element, a second circuit element, and a position sensing element that are partially disposed on a base.

[0021] Figure 4 A schematic side view of the first driving assembly of the display portion.

[0022] Figure 5 A three-dimensional view showing the first movable portion and the second movable portion viewed from bottom to top is shown.

[0023] Fig. 6A A three-dimensional diagram showing a first movable portion and a first magnetic conductive element, a second magnetic conductive element, a third magnetic conductive element, a magnetic conductive element, and a connecting element embedded in the first movable portion, wherein the first movable portion is shown in dotted lines for illustrative purposes.

[0024] Figure 6B A perspective view showing a portion of an optical element driving mechanism according to some embodiments of the present disclosure.

[0025] Figure 6C An exploded view showing the second movable portion, the position sensing element, the magnetic element, the coil, the magnetic conductive element and the circuit element.

[0026] Figure 7 A block diagram of an optical element driving mechanism according to some embodiments of the present disclosure is shown.

[0027] The reference numerals are as follows:

[0028] 1000: Optical element drive mechanism

[0029] 1100:Fixed part

[0030] 1110: Upper cover

[0031] 1120: Base

[0032] 1121: Side wall

[0033] 1122,1123: retaining wall

[0034] 1124:Terminal

[0035] 1200: Activities Department

[0036] 1210: First Activity Department

[0037] 1211: Groove

[0038] 1212: Receiving Department

[0039] 1213: Opening

[0040] 1214: First stopper

[0041] 1215: Second stopper

[0042] 1220: Second Activity Department

[0043] 1221:Contact Department

[0044] 1222: Accommodation

[0045] 1300: Guiding element

[0046] 1400: first drive assembly

[0047] 1411: first magnetic element

[0048] 1411-1: First Surface

[0049] 1411-2: Second Surface

[0050] 1412: First coil

[0051] 1413: Second coil

[0052] 1414: first magnetic conductive element

[0053] 1421: Second magnetic element

[0054] 1422: The third coil

[0055] 1423: The fourth coil

[0056] 1424: Second magnetic conductive element

[0057] 1431: Third magnetic element

[0058] 1432: Fifth coil

[0059] 1433: Sixth coil

[0060] 1434: The third magnetic conductive element

[0061] 1500: first circuit component

[0062] 1510: First circuit element

[0063] 1520: Second circuit element

[0064] 1610,1620,1630: Position sensing element

[0065] 1700: Second drive assembly

[0066] 1710:Magnetic components

[0067] 1720: Coil

[0068] 1730,1740: Magnetic element

[0069] 1800: Second circuit component

[0070] 1811:Welding Department

[0071] 1810:Circuit Components

[0072] 1820: Connecting elements

[0073] 1830: Elastic element

[0074] 1831: First connection point

[0075] 1832: Second connection point

[0076] 1833:Connecting wire

[0077] 1834: Extension

[0078] 1840:Supporting element

[0079] 1910,1920: Suppressor elements

[0080] 2000: Aperture mechanism

[0081] W1,W2,W3,W4,W5,W6: Winding axis

[0082] X,Y,Z: axis

[0083] O: Optical axis DETAILED DESCRIPTION

[0084] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meanings as commonly understood by those skilled in the art to which this disclosure belongs. It is understood that these terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning consistent with the background or context of the relevant technology and the present disclosure, and should not be interpreted in an idealized or overly formal manner unless specifically defined herein.

[0085] Furthermore, the ordinal numbers used in the specification and claims, such as "first", "second", etc., to modify the elements of the claims, do not themselves imply or represent any previous ordinal number of the requested element, nor do they represent the order of one requested element and another requested element, or the order in the manufacturing method. The use of multiple ordinals is only used to clearly distinguish a requested element with a certain name from another requested element with the same name.

[0086] In addition, in some embodiments of the present disclosure, terms such as "connection" and "interconnection" may refer to two structures being in direct contact with each other, or two structures not being in direct contact with each other, and other structures being disposed between the two structures, unless otherwise specified. Such terms may also include situations where both structures are movable or both structures are fixed.

[0087] Figure 1 is a stereoscopic diagram of an optical element driving mechanism 1000 according to some embodiments of the present disclosure.

[0088] Figure 2 FIG. 1 is an exploded view of an optical element driving mechanism 1000 according to some embodiments of the present disclosure. Figure 1 as well as Figure 2 .

[0089] like Figure 1 as well as Figure 2 As shown in FIG. 1 , the optical element driving mechanism 1000 includes a fixed portion 1100, a movable portion 1200, a pair of guiding elements 1300, a first driving component 1400, a first circuit component 1500, three position sensing components 1610, 1620, 1630, a second driving component 1700, a second circuit component 1800, and an inhibiting component 1910 ( Figure 6C )、1920( Figure 6B ).

[0090] According to some embodiments of the present disclosure, the fixing portion 1100 includes an upper cover 1110 and a base 1120. The upper cover 1110 is fixedly connected to the base 1120 to form a space for accommodating other elements of the optical element driving mechanism 1000.

[0091] According to some embodiments of the present disclosure, the movable portion 1200 can move relative to the fixed portion 1100. The movable portion 1200 includes a first movable portion 1210 and a second movable portion 1220. The second movable portion 1220 can move relative to the first movable portion 1210. The second movable portion 1220 can be a carrier connected to an optical element (not shown) having an optical axis O.

[0092] Specifically, the first movable portion 1210 can move relative to the fixed portion 1100 to achieve an optical image stabilization (OIS) optical effect. The second movable portion 1220 can move relative to the first movable portion 1210 and the fixed portion 1100 to achieve an auto focus (AF) optical effect.

[0093] According to some embodiments of the present disclosure, the guide element 1300 may be a guide rod. The guide element 1300 is fixedly disposed on the first movable portion 1210. The guide element 1300 may guide the movement of the second movable portion 1220 relative to the first movable portion 1210.

[0094] According to some embodiments of the present disclosure, the first driving assembly 1400 is used to drive the first movable portion 1210 (which will also drive the second movable portion 1220 carrying the optical element (not shown)) to move relative to the fixed portion 1100 .

[0095] According to some embodiments of the present disclosure, the first driving component 1400 is electrically connected to the first circuit component 1500. The first circuit component 1500 includes a first circuit element 1510 and a second circuit element 1520. The position sensing element 1610 and the position sensing element 1620 are configured to sense the position of the first movable portion 1210 relative to the fixed portion 1100, and the details thereof will be described in detail below.

[0096] According to some embodiments of the present disclosure, the first driving assembly 1400 includes a first magnetic element 1411 ( Figure 2 ), two first coils 1412 ( Figure 3A ), two second coils 1413 ( Figure 3A )、a first magnetic conductive element 1414 ( Fig. 6A )、a second magnetic element 1421 ( Figure 5 ), two third coils 1422 ( Figure 3A ), two fourth coils 1423 ( Figure 3A )、a second magnetic conductive element 1424 ( Fig. 6A ), a third magnetic element 1431 ( Figure 2 ), two fifth coils 1432 ( Figure 3A )、Two sixth coils 1433( Figure 3A ) and a third magnetic conductive element 1434 ( Fig. 6A ).

[0097] like Figure 2 As shown in FIG. 1 , the first magnetic element 1411 and the third magnetic element 1431 are disposed on the first movable portion 1210. In addition, although the second magnetic element 1421 is Figure 2 The view in is blocked, but can be Figure 5 It can be seen in the figure that the second magnetic element 1421 is also disposed on the first movable portion 1210 , and the second magnetic element 1421 is disposed on a side of the first movable portion 1210 opposite to the first magnetic element 1411 . The first magnetic element 1411 is parallel to the second magnetic element 1421 .

[0098] Please refer to Figure 2 as well as Figure 3A , the third magnetic element 1431 is not parallel to the first magnetic element 1411 and the second magnetic element 1421. The first coil 1412 and the second coil 1413 correspond to the first magnetic element 1411. The third coil 1422 and the fourth coil 1423 correspond to the second magnetic element 1421. The fifth coil 1432 and the sixth coil 1433 correspond to the third magnetic element 1431.

[0099] According to some embodiments of the present disclosure, the first circuit element 1510 is perpendicular to the second circuit element 1520. The first coil 1412, the third coil 1422, and the fifth coil 1432 are arranged on the first circuit element 1510 facing the optical axis O( Figure 2 The second circuit element 1520 is located on a plane perpendicular to the optical axis O.

[0100] For example, the first coil 1412 is located on a surface of the first circuit element 1510 opposite to the third coil 1422 , and the fifth coil 1432 is located on a surface of the first circuit element 1510 perpendicular to the first coil 1412 and the third coil 1422 .

[0101] Similarly, the second coil 1413 is located on a side of the second circuit element 1520 opposite to the fourth coil 1423 , and the sixth coil 1433 is located on a side of the second circuit element 1520 adjacent to the second coil 1413 and the fourth coil 1423 .

[0102] Please refer to the reply Figure 2 The position sensing elements 1610 and 1620 are respectively disposed on different sides of the first circuit element 1510 , and are used to sense the movement of the first movable portion 1210 relative to the fixed portion 1100 . The position sensing element 1610 corresponds to the first magnetic element 1411 . The position sensing element 1620 corresponds to the third magnetic element 1431 .

[0103] Specifically, the position sensing element 1610 can sense the magnetic field change of the first magnetic element 1411, and determine the position of the first movable portion 1210 on the X axis through a control element (not shown). The position sensing element 1620 can sense the magnetic field change of the third magnetic element 1431, and determine the position of the first movable portion 1210 on the Y axis through a control element (not shown).

[0104] According to some embodiments of the present disclosure, the second driving component 1700 is configured to drive the second movable portion 1220 to move relative to the fixed portion 1100 and the first movable portion 1210. The second driving component 1700 includes a magnetic element 1710, a coil 1720, and two magnetic conductive elements 1730 ( Figure 6C )、1740( Figure 6C).

[0105] like Figure 2 As shown in FIG. 1 , the magnetic element 1710 is disposed on the second movable portion 1220, and the coil 1720 is disposed on the first movable portion 1210. Thus, when a driving signal is applied to the second driving component 1700 (for example, a current is applied by an external power source), an electromagnetic induction force is generated between the coil 1720 and the magnetic element 1710, and the second movable portion 1220 is driven to move relative to the first movable portion 1210, and then relative to the fixed portion 1100, so as to achieve the desired optical effect.

[0106] According to some embodiments of the present disclosure, the second driving component 1700 is electrically connected to an external circuit (not shown) via a second circuit component 1800. The second circuit component 1800 includes a circuit element 1810, a connecting element 1820 ( Fig. 6A ), four elastic elements 1830 and four supporting elements 1840.

[0107] like Figure 2 As shown in FIG. 1 , the circuit element 1810 is disposed on a side of the first movable portion 1210 opposite to the third magnetic element 1431. The position sensing element 1630 and the coil 1720 are disposed on the circuit element 1810. The position sensing element 1630 is used to sense the movement of the second movable portion 1220 relative to the first movable portion 1210.

[0108] In detail, the position sensing element 1630 corresponds to the magnetic element 1710 disposed on the second movable portion 1220. The position sensing element 1630 may be an all-in-one IC that packages a sensing integrated circuit and a control integrated circuit in the same package, so that the position sensing element 1630 determines the position of the second movable portion 1220 by sensing the magnetic field change of the magnetic element 1710, and then controls the second movable portion 1220 to move to a desired position, so as to achieve closed-loop control.

[0109] According to some embodiments of the present disclosure, the elastic element 1830 may be a spring sheet. The elastic element 1830 may movably connect the first movable part 1210 and the second movable part 1220. The supporting element 1840 may be a suspension wire. The supporting element 1840 supports the movement of the movable part 1200 relative to the fixed part 1100. The supporting element 1840 is substantially parallel to the optical axis O. The upper end of the supporting element 1840 is connected to the elastic element 1830 by soldering. The lower end of the supporting element 1840 is fixed to the base 1120.

[0110] Figure 3AA three-dimensional view showing a portion of the first driving assembly 1400 , the first circuit element 1510 , the second circuit element 1520 , and the position sensing elements 1610 , 1620 disposed on the base 1120 . Figure 3B An exploded view of a portion of the first driving assembly 1400 , the first circuit element 1510 , the second circuit element 1520 , and the position sensing elements 1610 , 1620 disposed on the base 1120 is shown.

[0111] like Figure 3A As shown in FIG. 1 , when viewed along the optical axis O (Z axis), the first coil 1412 and the second coil 1413 at least partially overlap. Figure 3B As shown in FIG. 1 , the winding axis W1 of the first coil 1412 and the winding axis W2 of the second coil 1413 are not parallel to each other. Specifically, the winding axis W1 of the first coil 1412 and the winding axis W2 of the second coil 1413 are perpendicular to each other. For example, the winding axis W1 of the first coil 1412 is parallel to the X-axis, and the winding axis W2 of the second coil 1413 is parallel to the Z-axis.

[0112] Similarly, the winding axis W3 of the third coil 1422 and the winding axis W4 of the fourth coil 1423 are not parallel to each other but perpendicular to each other, and when viewed along the optical axis O, the third coil 1422 and the fourth coil 1423 at least partially overlap. The winding axis W5 of the fifth coil 1432 and the winding axis W6 of the sixth coil 1433 are not parallel to each other but perpendicular to each other, and when viewed along the optical axis O, the fifth coil 1432 and the sixth coil 1433 at least partially overlap.

[0113] like Figure 3A as well as Figure 3B As shown in FIG. 1 , the position sensing element 1610 is disposed in the hollow position of the annular structure of the first coil 1412, and the position sensing element 1620 is disposed in the hollow position of the annular structure of the fifth coil 1432. When viewed along the optical axis O, the first coil 1412 at least partially overlaps the position sensing element 1610. When viewed along the optical axis O, the fifth coil 1432 at least partially overlaps the position sensing element 1620.

[0114] It should be noted that the position sensing elements 1610 and 1620 are disposed on the side of the optical element driving mechanism 1000 (e.g., on the first circuit element 1510) rather than the bottom (e.g., on the second circuit element 1520). This has the following effects: even if the movable portion 1200 ( Figure 2 ) is flipped, it does not affect the position determination of the position sensing elements 1610 and 1620 on the X-axis and the Y-axis, and can sense more accurate position information compared to being set at the bottom.

[0115] According to some embodiments of the present disclosure, the first coil 1412 and the second coil 1413 are respectively used to generate a driving force to enable the movable part 1200 ( Figure 2 ) relative to the fixing portion 1100 ( Figure 2 ) moves in the first dimension. The first dimension movement in this embodiment refers to movement on the X-axis.

[0116] Similarly, the third coil 1422 and the fourth coil 1423 are also used to generate a driving force to move the movable part 1200 ( Figure 2 ) relative to the fixing portion 1100 ( Figure 2 ) moves in the first dimension. The first dimensional movement in this embodiment refers to the movement on the X axis. The first coil 1412, the second coil 1413, the third coil 1422 and the fourth coil 1423 are electrically connected in series. In this way, the first coil 1412, the second coil 1413, the third coil 1422 and the fourth coil 1423 can be driven and controlled at the same time.

[0117] In addition, the fifth coil 1432 and the sixth coil 1433 are used to generate a driving force to enable the movable part 1200 ( Figure 2 ) relative to the fixing portion 1100 ( Figure 2 ) in the second dimension. The second dimension movement is different from the first dimension movement. The second dimension movement in this embodiment refers to the movement on the Y axis.

[0118] like Figure 3A as well as Figure 3B As shown in FIG. 1 , the base 1120 includes a side wall 1121, two retaining walls 1122, 1123, and a terminal 1124. The side wall 1121 is located on a side opposite to the fifth coil 1432. The retaining walls 1122, 1123 are respectively located at two adjacent corners of the base 1120. The terminal 1124 can electrically connect the first circuit element 1510 and the second circuit element 1520 to an external circuit (not shown).

[0119] According to some embodiments of the present disclosure, the first coil 1412 is positioned between one end of the side wall 1121 and one end of the retaining wall 1122. The third coil 1422 is positioned between one end of the side wall 1121 and one end of the retaining wall 1123. The fifth coil 1432 is positioned between one end of the retaining wall 1122 and one end of the retaining wall 1123.

[0120] Figure 4A side view of the first driving assembly 1400 of the display portion. For illustrative purposes, the first magnetic element 1411 can be considered to include a first surface 1411-1 and a second surface 1411-2. The first surface 1411-1 and the second surface 1411-2 face different directions. The first surface 1411-1 faces the first coil 1412, and the second surface 1411-2 faces the second coil 1413.

[0121] like Figure 4 As shown in FIG. 1 , the first surface 1411 - 1 of the first magnetic element 1411 faces the position sensing element 1610 ( Figure 3B ). The shortest distance between the first coil 1412 and the first magnetic element 1411 is different from the shortest distance between the second coil 1413 and the first magnetic element 1411 .

[0122] It should be noted that when the active portion 1200 ( Figure 2 ) moves in the first dimension (movement on the X-axis), the shortest distance between the first surface 1411-1 of the first magnetic element 1411 and the first coil 1412 changes accordingly. When the movable portion 1200 moves in the first dimension (movement on the X-axis), the shortest distance between the second surface 1411-2 of the first magnetic element 1411 and the second coil 1413 does not change accordingly.

[0123] According to some embodiments of the present disclosure, the first coil 1412 and the second coil 1413 have different structures, and the thickness of the first coil 1412 is different from the thickness of the second coil 1413. For example, in some embodiments, the first coil 1412 may be a flat coil (FPCoil), and the second coil 1413 may be a well-known wound coil.

[0124] It should be noted that under the aforementioned coil configuration of the present invention, one magnetic element (e.g., the first magnetic element 1411) will correspond to two coils (e.g., the first coil 1412 and the second coil 1413) that are arranged perpendicular to each other. In conventional technology, the coil is usually only arranged on the side or bottom of the magnetic element (i.e., on a single side of the magnetic element). To achieve the driving force achieved by the configuration of the present invention, conventional technology requires the use of thicker magnets and larger coils. Therefore, the configuration of the first drive component 1400 of the present invention can achieve miniaturization and lightweight of the optical element drive mechanism 1000 that brings a large driving force.

[0125] Figure 5 The first movable part 1210 and the second movable part 1220 are shown in a three-dimensional view viewed from bottom to top. Figure 5 As shown, when viewed along the optical axis O (Z axis), the first magnetic element 1411 and the second magnetic element 1421 are located on both sides of the optical axis.

[0126] Fig. 6A A three-dimensional diagram showing the first movable portion 1210 and the first magnetic conductive element 1414 , the second magnetic conductive element 1424 , the third magnetic conductive element 1434 , the magnetic conductive element 1730 , and the connecting element 1820 embedded in the first movable portion 1210 , wherein the first movable portion 1210 is shown in dotted lines for illustrative purposes.

[0127] Figure 6B A perspective view showing a portion of an optical element driving mechanism 1000 according to some embodiments of the present disclosure. Figure 6C An exploded view is shown of the second movable portion 1220 , the position sensing element 1630 , the magnetic element 1710 , the coil 1720 , the magnetic conductive elements 1730 , 1740 , and the circuit element 1810 .

[0128] Please refer to Figure 6B Each of the elastic elements 1830 includes a first connection point 1831, a second connection point 1832, a connection line 1833, and an extension portion 1834. The first connection point 1831 and the second connection point 1832 are respectively at two ends of the connection line 1833. The first connection point 1831 is disposed on the second movable portion 1220, and the second connection point 1832 is disposed on the first movable portion 1210.

[0129] It can be noted that the first connection point 1831 is disposed on a side of the second movable portion 1220 closer to the guide element 1300, and the second connection point 1832 is disposed on a side of the first movable portion 1210 farther from the guide element 1300. The connection line 1833 and the extension portion 1834 are connected by the second connection point 1832. The support element 1840 is connected to the extension portion 1834.

[0130] Please refer to Fig. 6A as well as Figure 6B The first movable portion 1210 includes a pair of grooves 1211 ( Figure 6B )、a receiving unit 1212 ( Fig. 6A )、a pair of openings 1213 ( Figure 6B )、a first stopper 1214 ( Fig. 6A ) and a second stopper 1215 ( Fig. 6A ).

[0131] According to some embodiments of the present disclosure, the groove 1211 of the first movable portion 1210 can accommodate the guide element 1300 to fix the guide element 1300 on the first movable portion 1210. The groove 1211 is located on the first stopper 1214 of the first movable portion 1210.

[0132] According to some embodiments of the present disclosure, the receiving portion 1212 of the first movable portion 1210 receives the circuit element 1810 ( Figure 6C ).like Fig. 6A As shown in FIG. 1 , the magnetic conductive element 1730 is partially embedded in the receiving portion 1212 of the first movable portion 1210. It should be noted that Fig. 6A Only a portion of the magnetic conductive element 1730 is shown in FIG. Figure 6C middle.

[0133] like Figure 6C As shown in FIG. 1 , the position sensing element 1630 and the coil 1720 are disposed on the circuit element 1810 and are electrically connected to the circuit element 1810. The circuit element 1810 is disposed on the receiving portion 1212 ( Fig. 6A ). The circuit element 1810 includes four soldering portions 1811 .

[0134] like Figure 6B As shown in FIG. 1 , the soldering portion 1811 of the circuit element 1810 and the connecting element 1820 connected thereto can be seen from the opening 1213 of the first movable portion 1210. Thus, during the assembly of the optical element driving mechanism 1000, the circuit element 1810 can be electrically connected to the connecting element 1820 by soldering the soldering portion 1811 of the circuit element 1810 and the connecting element 1820 through the opening 1213 of the first movable portion 1210.

[0135] According to some embodiments of the present disclosure, when the second movable portion 1220 moves to a first limit position along the optical axis O, the inhibiting element 1910 ( Figure 6C ) will first contact the first stopper 1214 ( Figure 6B Similarly, when the second movable portion 1220 moves to a second limit position along the optical axis O, the inhibiting element (not shown) disposed on the second movable portion 1220 first contacts the upper surface ( Fig. 6A ).

[0136] like Figure 6C As shown in FIG. 1 , the second movable portion 1220 includes a pair of contact portions 1221 and a receiving portion 1222. The two contact portions 1221 are respectively located on both sides of the receiving portion 1222. The contact portion 1221 contacts the guide element 1300 ( Figure 2 ), so that the second movable portion 1220 is supported by the guide element 1300 and moves relative to the first movable portion 1210 ( Figure 2 ) movement is smoother.

[0137] According to some embodiments of the present disclosure, the magnetic element 1740 is embedded in the receiving portion 1222 of the second movable portion 1220. The magnetic element 1710 is located in the receiving portion 1222 of the second movable portion 1220. The magnetic element 1730 is partially embedded in the first movable portion 1210 ( Fig. 6A ), and the circuit element 1810 is connected to the magnetic conductive element 1730.

[0138] In this way, an attraction is generated between the magnetic element 1710 disposed on the second movable portion 1220 and the magnetic conductive element 1730 disposed on the first movable portion 1210, so that the second movable portion 1220 moves toward the guiding element 1300 ( Figure 6B ) direction, so that the second movable part 1220 can move more smoothly relative to the first movable part 1210, and it is not easy to shake or overturn.

[0139] like Figure 6B As shown in FIG. 1 , a suppressing element 1920 is disposed on one side of the opening 1213 of the first movable portion 1210 to buffer the first movable portion 1210 and the fixed portion 1100 ( Figure 2 ) between the two. In detail, the suppression element 1910 ( Figure 6C ), 1920 has a hollow structure and is made of rubber and other materials, which can be used to suppress noise and cushion impact.

[0140] like Fig. 6A as well as Figure 6C As shown, the first magnetic conductive element 1414 , the second magnetic conductive element 1424 , the third magnetic conductive element 1434 and the magnetic conductive element 1740 can enhance the magnetic force of the corresponding first magnetic element 1411 , the second magnetic element 1421 , the third magnetic element 1431 and the magnetic element 1710 .

[0141] It should be understood that the coil 1720 ( Figure 6C ) in sequence through circuit element 1810 ( Figure 6C )、Connecting element 1820( Fig. 6A )、Elastic element 1830( Figure 6B ) and support element 1840 ( Figure 6B ) is electrically connected to an external circuit (not shown).

[0142] Figure 7 A block diagram of an optical element driving mechanism 1000 according to some embodiments of the present disclosure is shown, wherein an aperture mechanism 2000 is mounted on the second movable portion 1220. That is, the aperture mechanism 2000 is disposed on the second movable portion 1220 to control the amount of light entering the second movable portion 1220 to achieve a desired optical effect.

[0143] It should be noted that the aperture mechanism 2000 is connected to the first connection point 1831 ( Figure 6B ) is electrically connected to the elastic element 1830. The circuit element 1810 ( Figure 6B ) via connecting element 1820 ( Figure 6B ) is electrically connected to the second connection point 1832 of the elastic element 1830 ( Figure 6B ).

[0144] In summary, the special configuration of the driving assembly of the present invention enables the optical element driving mechanism of the present invention to drive the large moving part with a small and lightweight driving assembly. In addition, through the optimization of the structural design, the present invention reduces multiple complex components and reduces the difficulty of assembly.

[0145] Although the embodiments and advantages of the present invention have been disclosed above, it should be understood that those skilled in the art may make changes, substitutions and modifications without departing from the spirit and scope of the present disclosure. In addition, each claim constitutes a separate embodiment, and the scope of protection of the present disclosure also includes the combination of each claim and the embodiment.

Claims

1. An optical element driving mechanism, comprising: a fixing portion; a movable portion connected to an optical element having an optical axis, and the movable portion is movable relative to the fixed portion; as well as A first driving assembly is used to drive the movable part to move relative to the fixed part.

2. The optical element driving mechanism as claimed in claim 1, wherein the first driving component comprises: a first magnetic element; and A first coil and a second coil corresponding to the first magnetic element; The winding axes of the first coil and the second coil are not parallel to each other, and when observed along the optical axis, the first coil and the second coil at least partially overlap.

3. The optical element driving mechanism as described in claim 2, wherein the shortest distance between the first coil and the first magnetic element is different from the shortest distance between the second coil and the first magnetic element.

4. The optical element driving mechanism as described in claim 2, wherein the first magnetic element includes a first surface and a second surface, the first surface faces the first coil, the second surface faces the second coil, and the first surface and the second surface face different directions. 5 . The optical element driving mechanism as claimed in claim 4 , wherein the first coil and the second coil are respectively used to generate a driving force to make the movable part move relative to the fixed part in a first dimension. 6 . The optical element driving mechanism as claimed in claim 5 , further comprising a position sensing element for sensing the movement of the movable portion, wherein the first surface of the first magnetic element faces the position sensing element.

7. The optical element driving mechanism according to claim 6, wherein: When the movable portion moves in the first dimension, the shortest distance between the first surface of the first magnetic element and the first coil changes accordingly; When the movable portion moves in the first dimension, the shortest distance between the second surface of the first magnetic element and the second coil does not change.

8. An optical element driving mechanism as described in claim 6, wherein the first coil has a different structure from the second coil, the thickness of the first coil is different from the thickness of the second coil, when observed along the optical axis, the first coil and the position sensing element at least partially overlap, and the first coil and the second coil are electrically connected in series.

9. The optical element driving mechanism as claimed in claim 5, wherein the first driving component further comprises: a second magnetic element; as well as a third coil and a fourth coil corresponding to the second magnetic element; The first magnetic element is parallel to the second magnetic element, the winding axes of the third coil and the fourth coil are not parallel to each other, and the first coil, the second coil, the third coil and the fourth coil are electrically connected in series; When observed along the optical axis, the first magnetic element and the second magnetic element are located on two sides of the optical axis.

10. The optical element driving mechanism as claimed in claim 9, wherein the first driving component further comprises: a third magnetic element, which is not parallel to the first magnetic element and the second magnetic element; as well as A fifth coil and a sixth coil correspond to the third magnetic element so as to make the movable part move in a second dimension, and the second dimensional movement is different from the first dimensional movement.

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