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 optical element driving mechanism further includes a guiding element. The movable portion includes a first movable portion and a second movable portion. The second movable portion can move relative to the first movable portion. The guiding element guides the movement of the second movable portion relative to the first movable portion.

[0007] According to some embodiments of the present disclosure, the fixed portion includes a base. When viewed along the optical axis, the base at least partially overlaps with the guide element. During assembly of the optical element drive mechanism, the guide element is assembled to the first movable portion from a direction opposite to a direction in which light enters the optical element drive mechanism.

[0008] According to some embodiments of the present disclosure, the first movable part includes a first stopper, a second stopper, and a groove. When the second movable part moves along the optical axis to the first limit position, it contacts the first stopper, and when the second movable part moves along the optical axis to the second limit position, it contacts the second stopper. The groove can accommodate a guide element to fix the guide element to the first movable part. The groove is located on the first stopper of the first movable part.

[0009] According to some embodiments of the present disclosure, the optical element driving mechanism also includes a second driving component, a first circuit component and a second circuit component. The second driving component is configured to drive the second movable part to move relative to the fixed part and the first movable part. The first driving component is electrically connected to the first circuit component. The first circuit component includes a first circuit element and a second circuit element. The first circuit element and the second circuit element are perpendicular to each other. The second driving component is electrically connected to an external circuit via the second circuit component. The first driving component includes a first magnetic conductive element, a second magnetic conductive element and a third magnetic conductive element. The second driving component includes two magnetic conductive elements. The first magnetic conductive element and the second magnetic conductive element are arranged on the first movable part in parallel with each other. The third magnetic conductive element is arranged on the first movable part and is perpendicular to the first magnetic conductive element and the second magnetic conductive element. The magnetic conductive element is parallel to the third magnetic conductive element. One of the magnetic conductive elements is arranged on the first movable part, and the other of the magnetic conductive elements is arranged on the second movable part.

[0010] According to some embodiments of the present disclosure, the second circuit component includes a circuit element, a connecting element, an elastic element, and a supporting element. The second driving component is electrically connected to the external circuit via the circuit element, the connecting element, the elastic element, and the supporting element in sequence. The connecting element is embedded in the first movable part. The supporting element supports the movement of the movable part relative to the fixed part. The supporting element is roughly parallel to the optical axis, but the end of the supporting element closer to the elastic element is inclined toward the movable part at an angle of less than 1 degree. The supporting element has a wire diameter of approximately 0.06 mm.

[0011] According to some embodiments of the present disclosure, during assembly of the optical element driving mechanism, the circuit element is soldered from a side facing away from the optical axis, so that the circuit element is electrically connected to the connecting element.

[0012] According to some embodiments of the present disclosure, the elastic element includes a first connection point, a second connection point and a connection line. The first connection point and the second connection point are respectively at two ends of the connection line. The first connection point is arranged on the second movable part. The second connection point is arranged on the first movable part.

[0013] According to some embodiments of the present disclosure, the aperture mechanism is arranged on the second movable part. The aperture mechanism is electrically connected to the elastic element via the first connection point of the elastic element. The circuit element is electrically connected to the second connection point of the elastic element via the connection element. The first connection point is arranged on a side of the movable part closer to the guide element. The second connection point is arranged on a side of the movable part farther from the guide element.

[0014] According to some embodiments of the present disclosure, the optical element driving mechanism further includes two elastic elements and a plurality of inhibiting elements. The fixing portion includes a base. The base includes an opening. During assembly of the optical element driving mechanism, one of the inhibiting elements can be applied to the inside of the base from the outside of the base through the opening. One of the inhibiting elements is disposed between the elastic elements to prevent the elastic elements from colliding with each other and causing damage.

[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 movable part with a large mass by using a small and lightweight driving assembly. In addition, the aperture mechanism can be electrically connected to the movable part through the special structure of the miniaturized circuit assembly of the present invention, and the optical element driving mechanism of the present invention is provided with a suppression element with different functions, which makes the overall structure more stable. 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 3A A 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 5A A three-dimensional view showing the first movable portion and the second movable portion viewed from bottom to top is shown.

[0023] Figure 5B A bottom view of an optical element driving mechanism is shown according to some embodiments of the present disclosure.

[0024] Fig. 6AA 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.

[0025] Figure 6B A perspective view showing a portion of an optical element driving mechanism according to some embodiments of the present disclosure.

[0026] 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.

[0027] Figure 7 A block diagram of an optical element driving mechanism according to some embodiments of the present disclosure is shown.

[0028] Figure 8 for Figure 6B A partial enlarged view of the optical element driving mechanism.

[0029] Fig. 9 For along Figure 1 Partial cross-sectional view of the optical element driving mechanism taken along line AA'.

[0030] The reference numerals are as follows:

[0031] 1000: Optical element drive mechanism

[0032] 1100:Fixed part

[0033] 1110: Upper cover

[0034] 1120: Base

[0035] 1121: Side wall

[0036] 1121-1: Opening

[0037] 1122,1123: retaining wall

[0038] 1124:Terminal

[0039] 1200: Activities Department

[0040] 1210: First Activity Department

[0041] 1211: Groove

[0042] 1212: Receiving Department

[0043] 1213: Opening

[0044] 1214: First stopper

[0045] 1215: Second stopper

[0046] 1220: Second Activity Department

[0047] 1221:Contact Department

[0048] 1222: Accommodation

[0049] 1300: Guiding element

[0050] 1400: first drive assembly

[0051] 1411: first magnetic element

[0052] 1411-1: First Surface

[0053] 1411-2: Second Surface

[0054] 1412: First coil

[0055] 1413: Second coil

[0056] 1414: first magnetic conductive element

[0057] 1421: Second magnetic element

[0058] 1422: The third coil

[0059] 1423: The fourth coil

[0060] 1424: Second magnetic conductive element

[0061] 1431: Third magnetic element

[0062] 1432: Fifth coil

[0063] 1433: Sixth coil

[0064] 1434: The third magnetic conductive element

[0065] 1500: first circuit component

[0066] 1510: First circuit element

[0067] 1520: Second circuit element

[0068] 1610,1620,1630: Position sensing element

[0069] 1700: Second drive assembly

[0070] 1710:Magnetic components

[0071] 1720: Coil

[0072] 1730,1740: Magnetic element

[0073] 1800: Second circuit component

[0074] 1811:Welding Department

[0075] 1810:Circuit Components

[0076] 1820: Connecting elements

[0077] 1830: Elastic element

[0078] 1831: First connection point

[0079] 1832: Second connection point

[0080] 1833:Connecting wire

[0081] 1834: Extension

[0082] 1840:Supporting element

[0083] 1910,1920,1930,1940: inhibitory elements

[0084] 2000: Aperture mechanism

[0085] A-A':line

[0086] W1,W2,W3,W4,W5,W6: Winding axis

[0087] X,Y,Z: axis

[0088] O: Optical axis DETAILED DESCRIPTION

[0089] 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.

[0090] 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.

[0091] 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.

[0092] Figure 1 is a stereoscopic diagram of an optical element driving mechanism 1000 according to some embodiments of the present disclosure.

[0093] 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 .

[0094] 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 )、1930( Figure 8 )、1940( Fig. 9 ).

[0095] 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.

[0096] 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.

[0097] 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.

[0098] According to some embodiments of the present disclosure, the guide element 1300 may be a pair of guide rods. 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.

[0099] 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 .

[0100] 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.

[0101] 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 5A ), 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 ).

[0102] 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 5A 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 .

[0103] Please refer to Figure 2as 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.

[0104] 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.

[0105] 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 .

[0106] 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 .

[0107] 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 .

[0108] 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).

[0109] 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 ).

[0110] 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.

[0111] 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.

[0112] 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.

[0113] 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.

[0114] 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 portion 1210 and the second movable portion 1220. The supporting element 1840 may be a set of suspension wires. The supporting element 1840 supports the movement of the movable portion 1200 relative to the fixed portion 1100. The supporting element 1840 has a wire diameter of approximately 0.06 mm.

[0115] It should be noted that, although the support element 1840 is substantially parallel to the optical axis O, the “substantially parallel” mentioned herein includes a deviation within less than 5 degrees. Specifically, the end of the support element 1840 closer to the elastic element 1830 is inclined toward the movable portion 1200 at an angle of less than 1 degree to provide a more stable support for the movable portion 1200. The upper end of the support element 1840 is connected to the elastic element 1830 by soldering. The lower end of the support element 1840 is fixed to the base 1120.

[0116] Figure 3A A 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.

[0117] 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.

[0118] 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.

[0119] 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.

[0120] 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.

[0121] 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.

[0122] 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.

[0123] 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.

[0124] 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).

[0125] 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.

[0126] Figure 4 A 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.

[0127] 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 .

[0128] 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.

[0129] 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.

[0130] 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.

[0131] Figure 5A The first movable part 1210 and the second movable part 1220 are shown in a three-dimensional view viewed from bottom to top. Figure 5A 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. It should be noted that during the assembly of the optical element driving mechanism 1000, the guide element 1300 is assembled to the first movable portion 1210 from the direction (+Z direction) opposite to the direction (-Z direction) in which light enters the optical element driving mechanism 1000.

[0132] Figure 5B According to some embodiments of the present disclosure, a bottom view of the optical element driving mechanism 1000 is shown. Figure 5B As shown in FIG. 1 , when viewed along the optical axis O, the base 1120 at least partially overlaps the guide element 1300 .

[0133] 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.

[0134] like Fig. 6A As shown in FIG. 1 , the first magnetic conductive element 1414 and the second magnetic conductive element 1424 are disposed parallel to each other on the first movable portion 1210. The third magnetic conductive element 1434 is disposed on the first movable portion 1210 and is perpendicular to the first magnetic conductive element 1414 and the second magnetic conductive element 1424. The magnetic conductive element 1730 is parallel to the third magnetic conductive element 1434. The connecting element 1820 may be a terminal embedded in the first movable portion 1210.

[0135] Figure 6B A perspective view showing a portion of an optical element driving mechanism 1000 according to some embodiments of the present disclosure. Figure 6CAn 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 .

[0136] 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.

[0137] 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.

[0138] 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 ).

[0139] 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.

[0140] 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.

[0141] like Figure 6CAs 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 .

[0142] 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.

[0143] In other words, during the assembly of the optical element driving mechanism, the circuit element 1810 may be soldered from the side facing away from the optical axis O, so that the circuit element 1810 is electrically connected to the connecting element 1820 .

[0144] 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 second movable portion 1220 contacts the first stop portion 1214. In detail, before the second movable portion 1220 contacts the first stop portion 1214, the suppression element 1910 ( Figure 6C ) will first contact the first stopper 1214 ( Figure 6B ) to achieve a buffering effect. The suppression element 1910 described herein can be made of materials such as rubber.

[0145] Similarly, when the second movable portion 1220 moves to a second limit position along the optical axis O, the second movable portion 1220 contacts the second stop portion 1215. Specifically, before the second movable portion 1220 contacts the second stop portion 1215, the inhibiting element (not shown) disposed on the second movable portion 1220 contacts the upper surface of the second stop portion 1215 ( Fig. 6A ) to achieve a buffering effect. The suppression element described herein can be made of materials such as rubber.

[0146] 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.

[0147] 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.

[0148] 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.

[0149] 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.

[0150] 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 .

[0151] 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).

[0152] Figure 7A 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.

[0153] 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 ).

[0154] Figure 8 for Figure 6B A partial enlarged view of the optical element driving mechanism 1000. Figure 8 As shown in FIG. 1 , an inhibitor 1930 is disposed between the connection lines 1833 of the two elastic elements 1830 to prevent the connection lines 1833 of the elastic elements 1830 from colliding with each other and causing damage (for example, to prevent the elastic elements 1830 from short-circuiting due to collision). It should be noted that the inhibitor 1930 described herein may be gel. In some embodiments, the inhibitor 1930 may be a non-conductive material. The inhibitor 1930 may be disposed on the connection lines 1833 of the two elastic elements 1830 and may also contact at least one of the first movable portion 1210 and the second movable portion 1220.

[0155] Fig. 9 For along Figure 1 A partial cross-sectional view of the optical element driving mechanism 1000 taken along the line AA'. It should be noted that although Figure 3A as well as Figure 3B Although not shown, the side wall 1121 of the base 1120 may be Fig. 9 As shown, an opening 1121-1 is included. During assembly of the optical element drive mechanism 1000, the inhibiting element 1940 can be applied from the outside of the base 1120 through the opening 1121-1 to the inside of the base 1120. The inhibiting element 1940 described herein can be a gel.

[0156] It should be noted that the suppression element 1940 is applied through the opening 1121-1 near the corner of the base 1120, that is, near the support element 1840 ( Figure 2In this way, the suppression element 1940 can suppress the shaking or flipping of the supporting element 1840 caused by the aforementioned resonance frequency by absorbing the resonance frequency naturally generated in the optical element driving mechanism 1000, thereby achieving the effect of stabilizing the structure.

[0157] 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-mass movable part with a small and lightweight driving assembly. In addition, the aperture mechanism can be electrically connected to the movable part through the special structure of the miniaturized circuit assembly of the present invention, and the optical element driving mechanism of the present invention is provided with a suppression element with different functions, which makes the overall structure more stable.

[0158] 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 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 described in claim 1 further includes a guiding element, the movable part includes a first movable part and a second movable part, the second movable part can move relative to the first movable part, and the guiding element guides the movement of the second movable part relative to the first movable part.

3. The optical element driving mechanism according to claim 2, wherein: The fixing portion includes a base, and when viewed along the optical axis, the base at least partially overlaps the guide element; During assembly of the optical element driving mechanism, the guiding element is assembled to the first movable portion from a direction opposite to a direction in which light enters the optical element driving mechanism.

4. The optical element driving mechanism according to claim 2, wherein: The first movable part includes a first stop part, a second stop part and a groove. When the second movable part moves to a first extreme position along the optical axis, it contacts the first stop part, and when the second movable part moves to a second extreme position along the optical axis, it contacts the second stop part. The groove can accommodate the guide element to fix the guide element to the first movable part, and the groove is located on the first stop part of the first movable part.

5. The optical element driving mechanism as claimed in claim 2, further comprising a second driving component, a first circuit component and a second circuit component, the second driving component is configured to drive the second movable portion to move relative to the fixed portion and the first movable portion, the first driving component is electrically connected to the first circuit component, the first circuit component includes a first circuit element and a second circuit element, the first circuit element and the second circuit element are perpendicular to each other, and the second driving component is electrically connected to an external circuit via the second circuit component; in, The first driving component includes a first magnetic conductive element, a second magnetic conductive element and a third magnetic conductive element. The second driving component includes two magnetic conductive elements. The first magnetic conductive element and the second magnetic conductive element are arranged on the first movable part in parallel with each other. The third magnetic conductive element is arranged on the first movable part and is perpendicular to the first magnetic conductive element and the second magnetic conductive element. The two magnetic conductive elements are parallel to the third magnetic conductive element, and one of the two magnetic conductive elements is arranged on the first movable part, and the other of the two magnetic conductive elements is arranged on the second movable part.

6. An optical element driving mechanism as described in claim 5, wherein the second circuit component includes a circuit element, a connecting element, an elastic element and a supporting element, the second driving component is electrically connected to the external circuit via the circuit element, the connecting element, the elastic element and the supporting element in sequence, the connecting element is buried in the first movable part, the supporting element supports the movement of the movable part relative to the fixed part, the supporting element is roughly parallel to the optical axis, but the end of the supporting element closer to the elastic element is inclined toward the movable part at an angle of less than 1 degree, and the supporting element has a wire diameter of approximately 0.06 mm.

7. The optical element driving mechanism as claimed in claim 6, wherein during the assembly of the optical element driving mechanism, the circuit element is soldered from a side facing away from the optical axis so that the circuit element is electrically connected to the connecting element.

8. An optical element driving mechanism as described in claim 6, wherein the elastic element includes a first connection point, a second connection point and a connecting line, the first connection point and the second connection point are respectively at two ends of the connecting line, the first connection point is arranged on the second movable part, and the second connection point is arranged on the first movable part.

9. An optical element driving mechanism as described in claim 8, wherein an aperture mechanism is arranged on the second movable part, the aperture mechanism is electrically connected to the elastic element via the first connection point of the elastic element, the circuit element is electrically connected to the second connection point of the elastic element via the connecting element, the first connection point is arranged on a side of the movable part closer to the guiding element, and the second connection point is arranged on a side of the movable part farther away from the guiding element.

10. The optical element driving mechanism as described in claim 1 further includes two elastic elements and a plurality of inhibitory elements, the fixing portion includes a base, the base includes an opening, during the assembly of the optical element driving mechanism, one of the plurality of inhibitory elements can be applied to the inside of the base from the outside of the base through the opening, and one of the two inhibitory elements is arranged between two of the elastic elements.

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