Optical element driving mechanism

Abstract

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

Description

Technical Field

[0001] The present disclosure relates to an optical element driving mechanism. Background Art

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

[0003] The aforementioned electronic devices with photo-taking or video-recording functions are usually provided with an optical element driving mechanism to drive an optical element (such as a lens) to move along the optical axis, so as to achieve functions such as autofocus (AF) or optical image stabilization (OIS). Light can pass through the aforementioned optical element and form an image on the photosensitive element. However, the current trend of mobile devices is to have a smaller volume and higher durability. Therefore, how to effectively reduce the size of the optical element driving mechanism and improve its durability 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] An embodiment of the present disclosure provides an optical element driving mechanism, including a first movable part, a fixed part, and a driving component. The first movable part is used to connect a first optical element. The first movable part can move relative to the fixed part. The driving component is used to drive the first movable part to move relative to the fixed part.

[0006] In some embodiments, the optical element driving mechanism further includes a support component. The first movable part can move relative to the fixed part via the support component. The support component includes: a first intermediate element, a first corresponding part corresponding to the first intermediate element, a first support part corresponding to the first intermediate element, a second intermediate element, a second corresponding part corresponding to the second intermediate element, and a second support part corresponding to the second intermediate element; the first intermediate element can move relative to at least one of the first corresponding part and the first support part; the second intermediate element can move relative to at least one of the second corresponding part and the second support part.

[0007] The beneficial effect of the present disclosure is that an embodiment of the present disclosure provides an optical element driving mechanism, including a first movable part, a fixed part, and a driving component. The movable part is used to connect the optical element. The movable part can move relative to the fixed part. The driving component is used to drive the first movable part to move relative to the fixed part. Thus, effects such as autofocus, optical image stabilization, and zoom can be achieved, and miniaturization can also be achieved. Brief Description of the Drawings

[0008] Embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. It should be noted that, in accordance with standard practices in the industry, various features are not shown to scale and are only for illustrative purposes. In fact, the dimensions of the elements may be arbitrarily enlarged or reduced to clearly show the features of the present disclosure.

[0009] Figure 1A It is a schematic diagram of an optical element driving mechanism.

[0010] Figure 1B It is an exploded view of the optical element driving mechanism.

[0011] Figure 1C It is a top view of the optical element driving mechanism.

[0012] Figure 2A It is a sectional view taken along line A-A of Figure 1C

[0013] Figure 2B It is a sectional view taken along line B-B of Figure 1C

[0014] Figure 2C It is a sectional view taken along line C-C of Figure 1C

[0015] Figure 3A , Figure 3B , Figure 3C They are schematic diagrams of some elements of the optical element driving mechanism when viewed from different directions,

[0016] Figure 4A , Figure 4B They are schematic diagrams of some elements of the optical element driving mechanism when viewed from different directions

[0017] Figure 5A , Figure 5B , Figure 5C They are schematic diagrams of some elements of the optical element driving mechanism when viewed from different directions

[0018] Figure 6 It is a top view of some elements of the optical element driving mechanism.

[0019] Figure 7 It is a schematic diagram of some elements of the optical element driving mechanism.

[0020] Figure 8 It is a schematic diagram of the base.

[0021] Figure 9A It is a schematic diagram of some elements of the optical element driving mechanism.

[0022] Figure 9B ​​​It is a schematic diagram of some components of an optical element driving mechanism.

[0023] The reference numerals are as follows:

[0024] 1000: Optical element driving mechanism

[0025] 1100: Fixed part

[0026] 1110: Outer frame

[0027] 1120: Base

[0028] 1121: Second body

[0029] 1122: Third metal component

[0030] 1131: First corner

[0031] 1132: Second corner

[0032] 1133: Third corner

[0033] 1134: Fourth corner

[0034] 1135: First side

[0035] 1141: First stop element

[0036] 1142: First groove

[0037] 1151: First shock-absorbing element

[0038] 1152: Second shock-absorbing element

[0039] 1161: First positioning part

[0040] 1162: Second positioning part

[0041] 1163: Third positioning part

[0042] 1171: First positioning element

[0043] 1172: Second positioning element

[0044] 1173: Third positioning element

[0045] 1174: Fourth positioning element

[0046] 1175: Fifth positioning element

[0047] 1176: Sixth positioning element

[0048] 1177: Connecting part

[0049] 1210: First movable part

[0050] 1220: Second movable part

[0051] 1221: First body

[0052] 1222: First metal component

[0053] 1223: First amplification element

[0054] 1224: First connection element

[0055] 1225: First accommodation part

[0056] 1226: Second metal component

[0057] 1227: First electrical connection element

[0058] 1228: First electrical contact point

[0059] 1229: Second groove

[0060] 1231: First groove

[0061] 1232: Second groove

[0062] 1300: Driving component

[0063] 1301: First coil

[0064] 1302: Second coil

[0065] 1303: Third coil

[0066] 1304: Fourth coil

[0067] 1311: First magnetic element

[0068] 1312: Second magnetic element

[0069] 1313: Third magnetic element

[0070] 1314: Fourth magnetic element

[0071] 1315: First electrical connection part

[0072] 1316: Second electrical connection part

[0073] 1321: First reinforcement element

[0074] 1322: Second reinforcement element

[0075] 1323: Third reinforcement element

[0076] 1331: First protection element

[0077] 1332: Second protection component

[0078] 1341: First electronic component

[0079] 1342: Second electronic component

[0080] 1343: Third electronic component

[0081] 1350: Third circuit component

[0082] 1400: Support component

[0083] 1410: First intermediate component

[0084] 1411: First starting end

[0085] 1412: First terminal

[0086] 1420: Second intermediate component

[0087] 1421: Second starting end

[0088] 1422: Second terminal

[0089] 1500: First circuit component

[0090] 1600: Second circuit component

[0091] 1610: First connection part

[0092] 1620: Second connection part

[0093] 1630: Third connection part

[0094] 1640: Fourth connection part

[0095] 1710: First support part

[0096] 1720: Second support part

[0097] 1730: First corresponding part

[0098] 1731: First contact surface

[0099] 1732: Second contact surface

[0100] 1733: Third contact surface

[0101] 1734: Fourth contact surface

[0102] 1735: First connection surface

[0103] 1736: Second connection surface

[0104] 1737: Third connection surface

[0105] 1740: Second corresponding part

[0106] 1741: First buffer surface

[0107] 1742: Second buffer surface

[0108] 1743: Protruding part

[0109] 1744: Fifth contact surface

[0110] 1900: Main shaft

[0111] 1901: First shaft

[0112] 1902: Second shaft

[0113] 1903: Third shaft

[0114] 1911,1912: Length

[0115] 1913,1914: Spacing

[0116] 1921,1922,1923,1924,1941,1942: Maximum dimension

[0117] 1931,1932: Shortest distance

[0118] X, Y, Z: Coordinates Detailed implementation manner

[0119] Many different implementation methods or examples are disclosed below to implement the different features provided. The following describes embodiments of specific components and their arrangements to illustrate the present disclosure. Of course, these embodiments are only for illustration and should not limit the scope of the present disclosure. For example, when it is mentioned in the specification that a first feature component is formed on a second feature component, it may include an embodiment where the first feature component and the second feature component are in direct contact, and may also include an embodiment where there are other features between the first feature component and the second feature component. In other words, the first feature component and the second feature component are not in direct contact.

[0120] In addition, repeated reference numerals or labels may be used in different embodiments. These repetitions are for the purpose of simply and clearly describing the present disclosure and do not represent a specific relationship between the different embodiments and / or structures being discussed. Further, forming, connecting to, and / or coupling to another feature component in the present disclosure may include embodiments in which the feature components are formed in direct contact, and may also include embodiments in which additional feature components may be formed between the above feature components such that the above feature components may not be in direct contact. Further, spatially relative terms such as "vertical", "above", "upper", "lower", "bottom", and similar terms (such as "downwardly", "upwardly", etc.) may be used. These spatially relative terms are for the purpose of facilitating the description of the relationship between one or more elements or features in the drawings and another element or feature. These spatially relative terms are intended to cover different orientations of the device including the features.

[0121] Unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. It is understood that such terms, such as those defined in a commonly used dictionary, should be interpreted as having a meaning consistent with the context of the relevant art and the present disclosure, and should not be interpreted in an idealized or overly formal manner unless specifically defined herein.

[0122] Furthermore, ordinal numbers such as "first", "second", etc. used in the specification and claims to modify elements of the claims do not themselves imply or represent any prior ordinal number of the claimed element, nor do they represent the order of one claimed element and another claimed element, or the order in a manufacturing method. The use of multiple ordinal numbers is only used to clearly distinguish one claimed element having a certain name from another claimed element having the same name.

[0123] In addition, in some embodiments of the present disclosure, terms related to joining and connecting, such as "connect", "interconnect", etc., 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 between the two structures. And such terms related to joining and connecting may also include cases where both structures are movable, or both structures are fixed.

[0124] Embodiments of the present disclosure provide an optical element driving mechanism for driving an optical element to move. For example, Figure 1A is a schematic diagram of the optical element driving mechanism 1000. Figure 1B is an exploded view of the optical element driving mechanism 1000. Figure 1C is a top view of the optical element driving mechanism 1000. Figure 2A is along Figure 1C The sectional view shown by the line A-A of.Figure 2B It is a sectional view shown along line B-B of Figure 1C . Figure 2C It is a sectional view shown along line C-C of Figure 1C .

[0125] As Figures 1A to 2C shown, the optical element driving mechanism 1000 mainly may include a fixed part 1100 (including an outer frame 1110 and a base 1120), a first movable part 1210, a second movable part 1220, a driving assembly 1300, a first intermediate element 1410, a second intermediate element 1420, a first circuit assembly 1500, and a second circuit assembly 1600 arranged along a main shaft 1900, for driving an optical element (not shown) to move.

[0126] In some embodiments, the aforementioned optical element may be disposed in the first movable part 1210, and may be, for example, a lens, a mirror, a prism, a reflective polished surface, an optical coating, a beam splitter, an aperture, a liquid lens, an image sensor, a camera module, a ranging module, etc. It should be noted that the definition of the optical element here is not limited to elements related to visible light, and elements related to invisible light (such as infrared light, ultraviolet light, etc.) may also be included in the present disclosure.

[0127] In some embodiments, the outer frame 1110 and the base 1120 of the fixed part 1100 may be combined with each other to form a housing of the optical element driving mechanism 1000, and other elements of the optical element driving mechanism 1000 may be disposed in the housing formed by the outer frame 1110 and the base 1120 to protect other elements. For example, the base 1120 may be fixedly connected to the outer frame 1110. In some embodiments, additional circuits may be buried in the base 1120 to allow elements in the optical element driving mechanism 1000 to be electrically connected to other elements.

[0128] In some embodiments, the first movable part 1210 and the second movable part 1220 of the movable part 1200 may be disposed in the fixed part 1100 and may move relative to the fixed part 1100. That is to say, the first movable part 1210 and the second movable part 1220 are movably connected to the fixed part 1100. In addition, the first movable part 1210 may also move relative to the second movable part 1220.

[0129] In some embodiments, the driving component 1300 can be used to drive the first movable part 1210 and the second movable part 1220 to move relative to the fixed part 1100, so as to achieve the effects of auto focus (AF) or optical image stabilization (OIS). In some embodiments, the first movable part 1210 can move along the Z-axis, while the second movable part 1220 can move along the X-axis and the Y-axis.

[0130] In some embodiments, the first circuit component 1500 can be, for example, a printed circuit board (PCB), and can be disposed on the second movable part 1220. For example, it can be fixed on the second movable part 1220 by an adhesion method, and is used to electrically connect other components (such as the driving component 1300) in the optical element driving mechanism 1000 and an external device, so as to provide an electrical signal. Thus, the movement of the movable part 1200 on the X, Y, and Z axes can be controlled, and further the functions of auto focus (AF) or optical image stabilization (OIS) can be realized. The driving component 1300 can be fixed on the first circuit component 1500 by an adhesion method.

[0131] In some embodiments, the second circuit component 1600 can be made of a metal material, for example, and can be disposed between the movable part 1200 and the fixed part 1100, so that the movable part 1200 is movably connected to the fixed part 1100, thereby allowing the first movable part 1210 and the optical element disposed on the first movable part 1210 to move relative to the fixed part 1100. In addition, the second circuit component 1600 can also be electrically connected to the circuit embedded in the base 1120 (such as the third metal component 1122 introduced later), so as to electrically connect other electronic components in the optical element driving mechanism 1000. For example, the second circuit component 1600 can include reed switches perpendicular to the Z-axis (such as the first connection part 1610, the second connection part 1620, the third connection part 1630, and the fourth connection part 1640 introduced later). The reed switches can be disposed on one side of the movable part 1200 to transmit electrical signals. In some embodiments, the second circuit component 1600 can be electrically connected to an external module (not shown, such as an aperture, a shutter, and other optical-related modules), and this external module can be disposed on the first movable part 1210, for example, to move together with the first movable part 1210 and the optical element.

[0132] Figure 3A 、 Figure 3B 、 Figure 3C are schematic diagrams of some components of the optical element driving mechanism 1000 when viewed from different directions, in which the aforementioned outer frame 1110 is mainly omitted to better show other components. As Figures 3A to 3CAs shown, the fixing part 1100 (such as the base 1120) may have a polygonal shape and may have a first corner 1131, a second corner 1132, a third corner 1133, and a fourth corner 1134. At the first corner 1131, a first shock-absorbing element 1151 and a second shock-absorbing element 1152 may be provided, for example, between the base 1120 and the second movable part 1220, and may be in direct contact with the base 1120 and the second movable part 1220. Thereby, the vibration during the movement of the first movable part 1210 or the second movable part 1220 can be absorbed to achieve a better optical effect. In some embodiments, the first shock-absorbing element 1151 and the second shock-absorbing element 1152 may include gel, for example. In some embodiments, the first shock-absorbing element 1151 and the second shock-absorbing element 1152 may also be provided at the second corner 1132, the third corner 1133, and / or the fourth corner 1134, depending on the design requirements.

[0133] In some embodiments, as Figure 3B shown, when viewed along the main axis 1900, the base 1120 may have a first side 1135 between the third corner 1133 and the fourth corner 1134. The second circuit component 1600 may include a first connection part 1610, a second connection part 1620, a third connection part 1630, and a fourth connection part 1640, which are provided on the first side 1135 and arranged in a first direction (such as the Y direction). There may be a gap between the first connection part 1610, the second connection part 1620, the third connection part 1630, and the fourth connection part 1640 to avoid interference between the electrical signals thereof. In some embodiments, as Figure 1C shown, when viewed along the main axis 1900, the first connection part 1610, the second connection part 1620, the third connection part 1630, and the fourth connection part 1640 may be at least partially exposed outside the outer frame 1110, thereby allowing an external module (not shown) to be provided on the outer frame 1110 and electrically connecting the optical element driving mechanism 1000 through the first connection part 1610, the second connection part 1620, the third connection part 1630, and the fourth connection part 1640.

[0134] A first stop element 1141 may be disposed at a corner of the optical element driving mechanism 1000 to limit the movement ranges of the first movable part 1210 and the second movable part 1220. For example, the second movable part 1220 may include a first body 1221, and the first stop element 1141 may be fixedly disposed on the first body 1221. The first body 1221 and the first stop element 1141 may include a dielectric material, and the first body 1221 and the first stop element 1141 may include different materials. For example, the first body 1221 may include plastic, and the first stop element 1141 may include rubber. In some embodiments, the Young's modulus of the first stop element 1141 is lower than that of the first body 1221, so as to absorb the vibrations when the first movable part 1210 and the second movable part 1220 collide with other elements.

[0135] Figure 4A , Figure 4B are schematic views of some elements of the optical element driving mechanism 1000 when viewed from different directions, mainly showing the positional relationships of the second movable part 1220, the first intermediate element 1410, and the second intermediate element 1420. Figure 5A , Figure 5B , Figure 5C are schematic views of some elements of the optical element driving mechanism 1000 when viewed from different directions, mainly showing the positional relationships of the first movable part 1210, the first intermediate element 1410, and the second intermediate element 1420.

[0136] As Figure 2C , Figure 3B , Figure 4A , Figure 4B , Figure 5A , Figure 5B shown, the second movable part 1220 may include a first support part 1710 and a second support part 1720, and the first movable part 1210 may include a first corresponding part 1730 and a second corresponding part 1740. The first intermediate element 1410, the second intermediate element 1420, the first support part 1710, the second support part 1720, the first corresponding part 1730, and the second corresponding part 1740 may be collectively referred to as a support assembly 1400, and the first movable part 1210 can move relative to the fixed part 1100 via the support assembly 1400.

[0137] In some embodiments, the first support portion 1710 and the first corresponding portion 1730 may correspond to the first intermediate element 1410, while the second support portion 1720 and the second corresponding portion 1740 may correspond to the second intermediate element 1420. For example, the first support portion 1710 and the first corresponding portion 1730 may be in direct contact with the first intermediate element 1410, and the first intermediate element 1410 may be disposed between the first support portion 1710 and the first corresponding portion 1730, for example, in the direction of the X-axis extension, between the first support portion 1710 and the first corresponding portion 1730. Similarly, the second support portion 1720 and the second corresponding portion 1740 may be in direct contact with the second intermediate element 1420, and the second intermediate element 1420 may be disposed between the second support portion 1720 and the second corresponding portion 1740, for example, in the direction of the X-axis extension, between the second support portion 1720 and the second corresponding portion 1740.

[0138] In some embodiments, the first intermediate element 1410 and the second intermediate element 1420 may be respectively fixed to the first support portion 1710 and the second support portion 1720, and may be movably connected to the first corresponding portion 1730 and the second corresponding portion 1740 in a frictional contact manner. In some other embodiments, the first intermediate element 1410 and the second intermediate element 1420 may be respectively fixed to the first corresponding portion 1730 and the second corresponding portion 1740, and may be movably connected to the first support portion 1710 and the second support portion 1720 in a frictional contact manner, depending on the design requirements. In some embodiments, the first intermediate element 1410 and the second intermediate element 1420 may have a columnar shape and extend along the Z-axis direction. Thus, the first movable portion 1210 may move relative to the second movable portion 1220 along the Z-axis through the support assembly 1400.

[0139] In some embodiments, as Figure 4A and Figure 4B shown, the second movable portion 1220 may have a first groove 1231 and a second groove 1232 for accommodating the first intermediate element 1410 and the second intermediate element 1420 respectively. The first groove 1231 and the second groove 1232 may extend along a first axis 1901, and the first axis 1901 may be, for example, an axis parallel to the Z-axis. In some embodiments, the first intermediate element 1410 and the second intermediate element 1420 may have different lengths. For example, on the first axis 1901, the length of the first intermediate element 1410 may be greater than the length of the second intermediate element 1420. Therefore, the first groove 1231 and the second groove 1232 may also have different lengths. For example, the length 1911 of the first groove 1231 may be greater than the length 1912 of the second groove 1232.

[0140] In some embodiments, the first groove 1231 may include a first starting end 1411 and a first terminal end 1412, and the second groove 1232 may include a second starting end 1421 and a second terminal end 1422. The first starting end 1411 and the first terminal end 1412 may be located on two sides of the first groove 1231, and the second starting end 1421 and the second terminal end 1422 may be located on two sides of the second groove 1232. On the first axis 1901 (Z-axis), there may be a non-zero spacing 1913 between the first starting end 1411 and the second starting end 1421, and there may be a non-zero spacing 1914 between the first terminal end 1412 and the second terminal end 1422. That is to say, on the first axis 1901, there may be a height difference between the first starting end 1411 and the second starting end 1421, and there may also be a height difference between the first terminal end 1412 and the second terminal end 1422, so as to control the connection manner of the first intermediate element 1410 and the second intermediate element 1420 relative to the second movable part 1220. For example, the connection manner of the first intermediate element 1410 and the second movable part 1220 may be approximated to two-point bearing, and the connection manner of the second intermediate element 1420 and the second movable part 1220 may be approximated to single-point bearing, so as to approximate three-point bearing to further improve the stability of the overall structure.

[0141] In some embodiments, as Figure 5B shown, the first corresponding part 1730 may include a first contact surface 1731, a second contact surface 1732, a third contact surface 1733, a fourth contact surface 1734, a first connection surface 1735, a second connection surface 1736, and a third connection surface 1737. The first connection surface 1735 may be located between the first contact surface 1731 and the second contact surface 1732 and connect the first contact surface 1731 and the second contact surface 1732. The second connection surface 1736 may be located between the third contact surface 1733 and the fourth contact surface 1734 and connect the third contact surface 1733 and the fourth contact surface 1734. The third connection surface 1737 may be located between the first connection surface 1735 and the second connection surface 1736 and connect the first connection surface 1735 and the second connection surface 1736. The first contact surface 1731, the second contact surface 1732, the third contact surface 1733, and the fourth contact surface 1734 may be separated from each other.

[0142] In some embodiments, the first contact surface 1731 and the third contact surface 1733 may be arranged along the first axis 1901, and the second contact surface 1732 and the fourth contact surface 1734 may also be arranged along the first axis 1901. In some embodiments, the first intermediate element 1410 may directly contact the first contact surface 1731, the second contact surface 1732, the third contact surface 1733, and the fourth contact surface 1734, and be spaced apart from the first connection surface 1735, the second connection surface 1736, and the third connection surface 1737. For example, there may be a gap therebetween. That is to say, one end of the first intermediate element 1410 may directly contact the first contact surface 1731 and the second contact surface 1732, and the other end may directly contact the third contact surface 1733 and the fourth contact surface 1734. That is to say, on the first axis 1901, both ends of the first intermediate element 1410 may approximately rest on the first corresponding part 1730 at two points.

[0143] In some embodiments, as Figure 5C shown, the second corresponding part 1740 may include a first buffer surface 1741, a second buffer surface 1742, a protruding part 1743, and a fifth contact surface 1744. The protruding part 1743 may protrude towards the second intermediate element 1420 and may be located between the first buffer surface 1741 and the second buffer surface 1742, and the fifth contact surface 1744 may be located on the protruding part 1743 and between the first buffer surface 1741 and the second buffer surface 1742. In some embodiments, the first buffer surface 1741, the second buffer surface 1742, and the fifth contact surface 1744 may face the second intermediate element 1420 and may have normal vectors in the same direction (for example, parallel to the X axis). The fifth contact surface 1744 may directly contact the second intermediate element 1420, and the first buffer surface 1741 and the second buffer surface 1742 may be spaced apart from the second intermediate element 1420. Thus, the second intermediate element 1420 may approximately rest on the second corresponding part 1740 at a single point, so that the first intermediate element 1410 and the second intermediate element 1420 may rest on the first movable part 1210 in an approximately three-point contact manner to further improve the stability of the overall structure.

[0144] Figure 6 is a top view of some elements of the optical element driving mechanism 1000. As Figure 6As shown, the driving component 1300 may include a first coil 1301, a second coil 1302, a third coil 1303, a fourth coil 1304, a first magnetic element 1311, a second magnetic element 1312, a third magnetic element 1313, and a fourth magnetic element 1314. The first magnetic element 1311, the second magnetic element 1312, the third magnetic element 1313, and the fourth magnetic element 1314 may respectively correspond to the first coil 1301, the second coil 1302, the third coil 1303, and the fourth coil 1304. For example, the first coil 1301, the second coil 1302, and the third coil 1303 may be respectively arranged with the first magnetic element 1311, the second magnetic element 1312, and the third magnetic element 1313 along the Z-axis, while the fourth coil 1304 may be arranged with the fourth magnetic element 1314 along the X-axis.

[0145] In some embodiments, the base 1120 may have a first positioning portion 1161, a second positioning portion 1162, and a third positioning portion 1163. The first positioning portion 1161 may include a first positioning element 1171 and a second positioning element 1172. The second positioning portion 1162 may include a third positioning element 1173 and a fourth positioning element 1174. The third positioning portion 1163 may include a fifth positioning element 1175 and a sixth positioning element 1176. The first positioning element 1171, the second positioning element 1172, the third positioning element 1173, the fourth positioning element 1174, the fifth positioning element 1175, and the sixth positioning element 1176 may have a columnar structure and may extend along the Z-axis. The first coil 1301 may be wound around the first positioning element 1171 and the second positioning element 1172. The second coil 1302 may be wound around the third positioning element 1173 and the fourth positioning element 1174. The third coil 1303 may be wound around the fifth positioning element 1175 and the sixth positioning element 1176 to fix the positions of the first coil 1301, the second coil 1302, and the third coil 1303 relative to the base 1120.

[0146] In some embodiments, the first positioning element 1171 and the second positioning element 1172 may be arranged along a second axis 1902 (such as the Y-axis). The third positioning element 1173 and the fourth positioning element 1174 may be arranged along a third axis 1903 (such as the X-axis). The fifth positioning element 1175 and the sixth positioning element 1176 may be arranged along the second axis 1902 (such as the Y-axis). That is to say, the first coil 1301 may have an elongated structure and extend along the second axis 1902. The second coil 1302 may have an elongated structure and extend along the third axis 1903. The third coil 1303 may have an elongated structure and extend along the second axis 1902.

[0147] In some embodiments, on the second axis 1902, the first positioning element 1171 has a maximum dimension 1921, while the second positioning element 1172 has a maximum dimension 1922. On the third axis 1903, the third positioning element 1173 may have a maximum dimension 1923, while the fourth positioning element 1174 may have a maximum dimension 1924. In some embodiments, the maximum dimension 1921 is different from the maximum dimensions 1923 and 1924, and the maximum dimension 1922 is also different from the maximum dimensions 1923 and 1924.

[0148] In some embodiments, as Figure 2A , Figure 2B , and Figure 6 shown, the first reinforcing element 1321, the second reinforcing element 1322, and the third reinforcing element 1323 may be respectively disposed on the first magnetic element 1311, the second magnetic element 1312, and the third magnetic element 1313. For example, the first reinforcing element 1321, the second reinforcing element 1322, and the third reinforcing element 1323 may at least partially overlap with the first magnetic element 1311, the second magnetic element 1312, and the third magnetic element 1313 on the Z axis. In addition, the first reinforcing element 1321, the second reinforcing element 1322, and the third reinforcing element 1323 may respectively correspond to the first coil 1301, the second coil 1302, and the third coil 1303. For example, the first reinforcing element 1321, the second reinforcing element 1322, and the third reinforcing element 1323 may at least partially overlap with the first coil 1301, the second coil 1302, and the third coil 1303 on the Z axis. In some embodiments, the winding axes of the first coil 1301, the second coil 1302, and the third coil 1303 may all be parallel to the Z axis.

[0149] In some embodiments, on the Z axis, the first reinforcing element 1321 may at least partially overlap with the first positioning portion 1161, the second reinforcing element 1322 may at least partially overlap with the second positioning portion 1162, and the third reinforcing element 1323 may at least partially overlap with the third positioning portion 1163, so as to reduce the dimensions of the optical element driving mechanism 1000 in other directions and achieve miniaturization. In some embodiments, the first reinforcing element 1321, the second reinforcing element 1322, and the third reinforcing element 1323 may have materials different from those of the first positioning portion 1161, the second positioning portion 1162, and the third positioning portion 1163. For example, the materials of the first reinforcing element 1321, the second reinforcing element 1322, and the third reinforcing element 1323 may include metals, while the materials of the first positioning portion 1161, the second positioning portion 1162, and the third positioning portion 1163 may include non-conductive materials, such as dielectric materials like plastics or rubbers.

[0150] Figure 7 is a schematic diagram of some components of the optical element driving mechanism 1000. As Figure 6 , Figure 7 shown, the optical element driving mechanism 1000 may further include a first electronic component 1341, disposed between the first positioning element 1171 and the second positioning element 1172. In some embodiments, the first electronic component 1341 may include, for example, a Hall Sensor, a Magnetoresistance Effect Sensor (MR Sensor), a Giant Magnetoresistance Effect Sensor (GMR Sensor), a Tunneling Magnetoresistance Effect Sensor (TMR Sensor), or a Fluxgate Sensor. The first electronic component 1341 may also include an integrated circuit component for control.

[0151] As Figure 6 , Figure 7 shown, the optical element driving mechanism 1000 may further include a first protection component 1331, disposed between the first positioning element 1171 and the second positioning element 1172, and may be in direct contact with the first coil 1301, the first electronic component 1341, the first positioning element 1171, and the second positioning element 1172. The first protection component 1331 may include, for example, glue, which can be used to fill the gap between the first coil 1301, the first positioning element 1171, and the second positioning element 1172, and can also be used to protect the first electronic component 1341. In some embodiments, the shortest distance 1931 between the first protection component 1331 and the first magnetic component 1311 is greater than the shortest distance 1932 between the first positioning element 1171 and the first magnetic component 1311. That is to say, when the first magnetic component 1311 moves in the Z-axis direction, before the first magnetic component 1311 directly contacts the first protection component 1331, the first magnetic component 1311 will first touch the first positioning element 1171, which can be used to avoid the collision and damage between the first protection component 1331 and the first magnetic component 1311, so as to further improve the durability of the optical element driving mechanism 1000.

[0152] In some embodiments, as Figure 6As shown, the optical element driving mechanism 1000 may further include a second electronic component 1342 and a third electronic component 1343, which are disposed between a third positioning element 1173 and a fourth positioning element 1174. The second electronic component 1342 and the third electronic component 1343 may include components similar to the aforementioned first electronic component 1341, and thus will not be elaborated herein. A second protection element 1332 may also be disposed on the second electronic component 1342 and the third electronic component 1343. For example, the second protection element 1332 may contact the second electronic component 1342, the third electronic component 1343, the third positioning element 1173, and the fourth positioning element 1174 to protect the second electronic component 1342 and the third electronic component 1343. The second protection element 1332 may include glue, for example.

[0153] In some embodiments, as Figure 6 shown, the third positioning portion 1163 may further include a connecting portion 1177 that connects a fifth positioning element 1175 and a sixth positioning element 1176. The connecting portion 1177 may have a plate-like structure, and a third protection element 1333 may be disposed in a groove formed by the fifth positioning element 1175, the sixth positioning element 1176, and the connecting portion 1177. The third protection element 1333 may include glue, for example, and may be used to protect the third coil 1303.

[0154] In some embodiments, on the third axis 1903, the maximum dimension 1941 of the second coil 1302 is different from the maximum dimension 1942 of the third coil 1303. For example, the maximum dimension 1941 may be greater than the maximum dimension 1942. That is to say, the driving force generated by the second coil 1302 and the second magnetic element 1312 may be greater than the driving force generated by the third coil 1303 and the third magnetic element 1313. Thus, the second coil 1302 and the second magnetic element 1312 may be designed to mainly drive the second movable portion 1220, while the third coil 1303 and the third magnetic element 1313 may be designed to prevent the second movable portion 1220 from flipping during movement.

[0155] Figure 8 is a schematic diagram of the base 1120. As Figure 8 shown, in some embodiments, the base 1120 may include a second body 1121, a third metal component 1122 (which may also be referred to as a circuit unit), and a second stopping element 1123. The third metal component 1122 may be embedded in the second body 1121 and partially exposed from the second body 1121 to serve as a conductive line and to enhance the structural strength. The second body 1121 may include a dielectric material, for example, it may include plastic. As Figures 3A to 3CAs shown, the first coil 1301 can be electrically connected to the third metal component 1122 (also referred to as a circuit unit) at the first electrical connection portion 1315, and the second coil 1302 can be electrically connected to the third metal component 1122 at the second electrical connection portion 1316. The first damping element 1151 can directly contact the first electrical connection portion 1315, and the second damping element 1152 can directly contact the second electrical connection portion 1316 to protect the first electrical connection portion 1315 and the second electrical connection portion 1316. The first electrical connection portion 1315 and the second electrical connection portion 1316 can include solder, for example, and the third metal component 1122 can be partially exposed at the first electrical connection portion 1315 and the second electrical connection portion 1316 to the second body 1121.

[0156] The second stop element 1123 can be disposed on the second body 1121 and the third metal component 1122 to limit the movement of the optical element, such as directly or indirectly. The second stop element 1123 can have a dielectric material, and the second body 1121 and the second stop element 1123 can have different materials. For example, the Young's modulus of the second stop element 1123 can be lower than the Young's modulus of the second body 1121. In some embodiments, the second stop element 1123 can include rubber. In some embodiments, the first stop element 1141 and the second stop element 1123 can include the same material, and the first body 1221 and the second body 1121 can also have the same material.

[0157] Figure 9A is a schematic diagram of some components of the optical element driving mechanism 1000. In some embodiments, as Figure 2A 、 Figure 9A shown, the second movable portion 1220 can further include a first metal component 1222 disposed in the first body 1221. In some embodiments, the first metal component 1222 can include a metal material and is disposed in the first body 1221, for example, partially embedded in the first body 1221 and partially exposed to the first body 1221. The first metal component 1222 can correspond to the first circuit component 1500, for example, and can at least partially overlap in the X direction. The first metal component 1222 can be used to enhance the mechanical strength of the second movable portion 1220.

[0158] In some embodiments, the optical element driving mechanism 1000 may further include a first amplification element 1223. The first amplification element 1223 may be located between the first circuit component 1500 and the first metal component 1222, and may be made of a metal material. In some embodiments, the first metal component 1222 and the first amplification element 1223 may be made of different materials. For example, the magnetic permeability of the first amplification element 1223 may be greater than that of the first metal component 1222, so as to enhance the driving strength of the fourth coil 1304 and the fourth magnetic element 1314 through the first amplification element 1223. In some embodiments, as Figure 2A shown, the fourth coil 1304 may be disposed on the second movable part 1220, and the fourth magnetic element 1314 may be disposed on the first movable part 1210, so as to drive the first movable part 1210 to move relative to the second movable part 1220 through the fourth coil 1304 and the fourth magnetic element 1314, for example, move parallel to the Z-axis.

[0159] In some embodiments, as Figure 2A , Figure 9A shown, the optical element driving mechanism 1000 may further include a first connecting element 1224. The first connecting element 1224 may be in direct contact with the first metal component 1222, the first amplification element 1223, and the first circuit component 1500. The first connecting element 1224 may include, for example, glue, and may be used to fix the first amplification element 1223 on the first circuit component 1500. In some embodiments, the first metal component 1222 has a first receiving portion 1225 with a recessed structure for receiving the first amplification element 1223, and the first connecting element 1224 is also at least partially received in the first receiving portion 1225.

[0160] Figure 9B is a schematic diagram of some elements of the optical element driving mechanism 1000. As Figure 9B shown, the second movable part 1220 may further include a second metal component 1226 made of a metal material, disposed on the first body 1221, for example, partially embedded in the first body 1221 and partially exposed from the first body 1221. The second metal component 1226 may be electrically connected to the driving component 1300. For example, it may include a first electrical contact 1228, which is electrically connected to the driving component 1300 (for example, electrically connected to the fourth coil 1304).

[0161] The first circuit component 1500 may have a plate-like structure. In a first direction (e.g., the Y direction) parallel to the first circuit component 1500, the first metal component 1222 and the second metal component 1226 at least partially overlap. In addition, the optical element driving mechanism 1000 may further include a first electrical connection element 1227 disposed at the first electrical contact point 1228, for example, overlapping in the X direction. In the first direction, the first electrical connection element 1227 and the first metal component 1222 may at least partially overlap.

[0162] In addition, as Figures 3A to 3C shown, the optical element driving mechanism 1000 may further have a third circuit component 1350 located at a corner of the optical element driving mechanism 1000 and extending along the Z axis. The first stop element 1141 may have a first groove 1142 corresponding to the third circuit component 1350. For example, the third circuit component 1350 may be received in the first groove 1142, and the first groove 1142 is spaced apart from the first stop element 1141 to protect the third circuit component 1350. In addition, the second movable part 1220 may also have a second groove 1229 corresponding to the third circuit component 1350. For example, the third circuit component 1350 may be received in the second groove 1229, and the second groove 1229 is spaced apart from the first stop element 1141 to protect the third circuit component 1350. When viewed along the main axis 1900, the first groove 1142 and the second groove 1229 may be located at the first corner 1131. In some embodiments, the first groove 1142 may be continuously connected to the second groove 1229. Thus, an electrical signal can be transmitted from one side of the optical element driving mechanism 1000 to the other side through the third circuit component 1350 extending along the Z axis.

[0163] In some embodiments, the second circuit component 1600 may move relative to the second metal component 1226 and may be electrically connected to each other. That is, the second circuit component 1600 electrically connected to an external module (not shown) may be electrically connected to other elements through the second metal component 1226. The second circuit component 1600 may be electrically connected to the third circuit component 1350 and may be electrically connected to an external circuit (not shown) through the third circuit component 1350, and the second metal component 1226 may also be electrically connected to this external circuit through the third circuit component 1350. That is, the second metal component 1226 and the second circuit component 1600 may share the third circuit component 1350 to transmit signals, so as to reduce the number of required components, thereby saving costs and achieving miniaturization.

[0164] In summary, the embodiments of the present disclosure provide an optical element driving mechanism, including a first movable part, a fixed part, and a driving component. The movable part is used to connect the optical element. The movable part can move relative to the fixed part. The driving component is used to drive the first movable part to move relative to the fixed part. Thus, effects such as autofocus, optical image stabilization, and zoom can be achieved, and miniaturization can also be achieved.

[0165] The special relative positions and size relationships of the various elements disclosed in the present disclosure can not only make the driving mechanism thinner in a specific direction and miniaturize the whole, but also further improve the optical quality of the system (such as shooting quality or depth sensing accuracy, etc.) by cooperating with different optical modules. Furthermore, by using each optical module to achieve a multi-shockproof system, the effect of anti-shake can be greatly improved.

[0166] Although the embodiments of the present disclosure and their advantages have been disclosed above, it should be understood that those skilled in the art can make changes, substitutions, and modifications without departing from the spirit and scope of the present disclosure. In addition, the protection scope of the present disclosure is not limited to the processes, machines, manufactures, compositions of matter, devices, methods, and steps in the specific embodiments described in the specification. Any processes, machines, manufactures, compositions of matter, devices, methods, and steps that can be developed currently or in the future by those skilled in the art from the disclosed content of the present disclosure can be used according to the present disclosure as long as they can perform substantially the same functions or obtain substantially the same results in the embodiments described herein. Therefore, the protection scope of the present disclosure includes the above-mentioned processes, machines, manufactures, compositions of matter, devices, methods, and steps. In addition, each claim constitutes an individual embodiment, and the protection scope of the present disclosure also includes the combination of each claim and embodiment.

Claims

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

2. The optical element driving mechanism according to claim 1, further comprising a supporting assembly, wherein the first movable portion can move relative to the fixed portion via the supporting assembly, and the supporting assembly comprises: a first intermediate element; a first corresponding portion, corresponding to the first intermediate element; a first supporting portion corresponding to the first intermediate element; a second intermediate element; a second corresponding portion corresponding to the second intermediate element; as well as a second supporting portion corresponding to the second intermediate element; in: The first intermediate element can move relative to at least one of the first corresponding portion and the first supporting portion; The second intermediate element is capable of relative movement at least relative to one of the second corresponding portion and the second supporting portion.

3. The optical element driving mechanism according to claim 2, wherein: The first supporting portion has a first groove for accommodating the first intermediate element, and the first groove extends along a first axis; The second supporting portion has a second groove for accommodating the second intermediate element, and the second groove extends along the first axis; The length of the first groove is different from the length of the second groove; The first groove includes a first starting end and a first ending end, which are located at two sides of the first groove; The second groove includes a second starting end and a second terminal end, which are located at two sides of the second groove; On the first axis, the first starting end and the second starting end have a non-zero spacing; On the first axis, the first terminal and the second terminal have a non-zero spacing.

4. The optical element driving mechanism according to claim 3, wherein: The length of the first groove is greater than the length of the second groove; The first corresponding portion includes a first contact surface, a second contact surface, a third contact surface, a fourth contact surface, a first connecting surface, and a second connecting surface; The first connecting surface is located between the first contact surface and the second contact surface, and connects the first contact surface and the second contact surface; The first contact surface directly contacts the first intermediate element; The second contact surface directly contacts the first intermediate element; The first contact surface is spaced apart from the second contact surface; There is a gap between the first connecting surface and the first intermediate element; The second connecting surface is located between the third contact surface and the fourth contact surface, and connects the third contact surface and the fourth contact surface; The third contact surface directly contacts the first intermediate element; The fourth contact surface directly contacts the first intermediate element; The third contact surface is spaced apart from the fourth contact surface; The first contact surface is spaced apart from the third contact surface; The first contact surface and the third contact surface are arranged along the first axis; The second contact surface is spaced apart from the fourth contact surface; The second contact surface and the fourth contact surface are arranged along the first axis.

5. The optical element driving mechanism according to claim 4, wherein: The second corresponding portion includes a protruding portion, a fifth contact surface, a first buffer surface, and a second buffer surface; The fifth contact surface directly contacts the second intermediate element; The fifth contact surface is located on the protruding portion; The protrusion protrudes toward the second intermediate element; The fifth contact surface is located between the first buffer surface and the second buffer surface; The fifth contact surface, the first buffer surface, and the second buffer surface face the second intermediate element; The normal vectors of the fifth contact surface, the first buffer surface, and the second buffer surface extend in the same direction; The first buffer surface and the second buffer surface are spaced apart from the second intermediate element.

6. The optical element driving mechanism according to claim 5, wherein: The driving assembly includes a first coil and a first magnetic element, and the first magnetic element corresponds to the first coil; The fixing portion includes a base; The base includes a first positioning portion; The first coil is fixedly disposed on the first positioning portion; The first positioning portion includes a first positioning element and a second positioning element; The first positioning element and the second positioning element are arranged along a second axis; The first coil has a long strip structure and extends along the second axis.

7. The optical element driving mechanism according to claim 6, further comprising: A first reinforcing element, corresponding to the first coil: A first electronic element is disposed between the first positioning element and the second positioning element; as well as a first protection element; in: When viewed along the winding axis of the first coil, the first reinforcing element at least partially overlaps with the first coil; When viewed along the winding axis of the first coil, the first reinforcing element at least partially overlaps with the first positioning portion; The first positioning portion and the first reinforcing element are made of different materials; The first reinforcing element is made of metal; The first protection element directly contacts the first coil; The first protection element directly contacts the first positioning element; The first protection element directly contacts the second positioning element; The shortest distance between the first protection element and the first magnetic element is greater than the shortest distance between the first positioning element and the first magnetic element.

8. The optical element driving mechanism according to claim 7, wherein: The drive assembly also includes: a second coil; a second magnetic element corresponding to the second coil; and a second positioning portion, the second coil is fixedly disposed on the second positioning portion, the second positioning portion includes a third positioning element and a fourth positioning element; The third positioning element and the fourth positioning element are arranged along a third axis; The second coil has a long strip structure and extends along the third axis; A maximum dimension of the first positioning element on the second axis is different from a maximum dimension of the third positioning element on the third axis; The maximum dimension of the first positioning element on the second axis is different from a maximum dimension of the fourth positioning element on the third axis; A maximum dimension of the second positioning element on the second axis is different from the maximum dimension of the third positioning element on the third axis; The maximum dimension of the second positioning element on the second axis is different from the maximum dimension of the fourth positioning element on the third axis.

9. The optical element driving mechanism according to claim 8, wherein: The drive assembly also includes: a second electronic element, disposed between the third positioning element and the fourth positioning element; a third electronic element, disposed between the third positioning element and the fourth positioning element; a third protection element; a third coil; a third magnetic element corresponding to the third coil; and a third positioning portion, the third coil is fixedly disposed on the third positioning portion, the third positioning portion includes a fifth positioning element and a sixth positioning element; The fifth positioning element and the sixth positioning element are arranged along the third axis; The third positioning portion includes a connecting portion connecting the fifth positioning element and the sixth positioning element; The connecting portion has a plate-like structure; The fifth positioning element and the sixth positioning element form a groove with the connecting portion, and the third protection element is disposed in the groove; On the third axis, a maximum dimension of the second coil is different from a maximum dimension of the third coil.

10. The optical element driving mechanism according to claim 9, further comprising: a circuit unit; a first electrical connection portion, wherein the first coil is electrically connected to the circuit unit at the first electrical connection portion; a second electrical connection portion, wherein the second coil is electrically connected to the circuit unit at the second electrical connection portion; a first vibration-absorbing element, directly contacting the first electrical connection portion; and A second vibration-absorbing element directly contacts the second electrical connection portion; in: On the third axis, the maximum dimension of the second coil is greater than the maximum dimension of the third coil; The fixing portion has a polygonal structure and has a first corner; The first vibration-absorbing element and the second vibration-absorbing element are disposed at the first corner.

Images