Optical element driving mechanism

Abstract

The utility model provides an optical element driving mechanism. The optical element driving mechanism comprises a first movable part, a fixed part and a 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.

Description

Technical Field

[0001] The utility model relates to an optical element driving mechanism, in particular to an optical element driving mechanism with a plurality of movable parts and guiding elements. Background Art

[0002] With the advancement of technology, many electronic devices today (such as laptops, smartphones, and digital cameras) now have camera or video recording capabilities. These devices are becoming increasingly common, and while they are developing more stable and superior optical quality, they are also moving towards more convenient and lightweight designs, providing users with more options.

[0003] Therefore, a need exists for an optical element drive mechanism that allows for adjustment of the optical focal length to suit varying photographic requirements. This mechanism can also reduce operational errors caused by interference with magnetic elements, stabilize the internal structure, and provide more stable and superior optical quality. Utility Model Content

[0004] The terms "embodiment" and similar terms (e.g., implementation, configuration, features, examples, and options) are intended to broadly refer to all of the subject matter of the present invention and the claims that follow. Several statements containing these terms should be understood as not limiting the subject matter described herein or limiting the meaning or scope of the claims that follow. The embodiments of the present invention covered herein are defined by the following claims, not by this summary. This summary is a high-level overview of the various features of the present invention and introduces some of the concepts that are further described in the following implementation paragraphs. This summary is not intended to identify the key or essential features of the claimed subject matter, nor is it intended to be used independently to determine the scope of the claimed subject matter. This subject matter should be understood by reference to appropriate portions of the complete specification of the present invention, any or all of the drawings, and each claim.

[0005] The purpose of the present invention is to provide an optical element driving mechanism to solve at least one of the above problems.

[0006] According to certain features of the present disclosure, an optical element driving mechanism is provided. The optical element driving mechanism includes a first movable portion, a fixed portion, and a driving assembly. The first movable portion is connected to an optical element. The first movable portion is movable relative to the fixed portion. The driving assembly is configured to drive the first movable portion to move.

[0007] According to certain features of the present disclosure, the optical element driving mechanism further includes a second movable portion that is movable relative to the fixed portion in a first dimension. When the second movable portion moves, the second movable portion drives the first movable portion to move. The first movable portion is movable relative to the second movable portion.

[0008] According to one embodiment of the present invention, it also includes a third movable part that can move in a second dimension relative to the fixed part, wherein: when the third movable part moves, the third movable part drives the first movable part and the second movable part to move; the first movable part can move relative to the third movable part; the third movable part can move relative to the second movable part.

[0009] According to one embodiment of the present invention, it also includes a fourth movable part, which can move in a third dimension relative to the fixed part, wherein: when the fourth movable part moves, the fourth movable part drives the first movable part to move; the fourth movable part can move relative to the first movable part and the second movable part; when the fourth movable part moves, the fourth movable part does not drive the second movable part to move; when the third movable part moves, the second movable part does not drive the fourth movable part to move.

[0010] According to one embodiment of the present invention, the driving component includes: a first magnetic element, which is at least partially fixedly arranged on the second movable part; a first coil, corresponding to the first magnetic element, wherein the second movable part can move relative to the first coil; a second magnetic element, which is at least partially fixedly arranged on the third movable part; a second coil, corresponding to the second magnetic element, wherein the third movable part and the second movable part can move relative to the second coil; a third magnetic element, which is at least partially fixedly arranged on the fourth movable part, wherein the third magnetic element can move relative to the first magnetic element and the first coil.

[0011] According to one embodiment of the present invention, when the first movable part moves in the first dimension, the first movable part drives the second movable part to move; and when the first movable part moves a first movement value, the second movable part moves a second movement value.

[0012] According to one embodiment of the present invention, when the first movable part moves in the third dimension, the first movable part drives the second movable part to move, and when the first movable part moves a third motion value, the second movable part moves a fourth motion value; wherein the fourth motion value is smaller than the third motion value; the ratio of the fourth motion value to the third motion value is different from the ratio of the second motion value to the first motion value; the ratio of the fourth motion value to the third motion value is smaller than the ratio of the second motion value to the first motion value.

[0013] According to one embodiment of the present invention, it also includes a guide component corresponding to the second movable part, wherein the guide component includes: a first guide part, which is flexible, has a first elastic coefficient corresponding to the first dimension, and a second elastic coefficient corresponding to the third dimension, wherein the second movable part drives the first movable part to move via the first guide part; and a second guide part, which is flexible, has a third elastic coefficient corresponding to the first dimension, and a fourth elastic coefficient corresponding to the third dimension, wherein the second movable part moves relative to the fixed part via the second guide part; wherein the third elastic coefficient is different from the fourth elastic coefficient; and the first elastic coefficient is different from the second elastic coefficient.

[0014] According to one embodiment of the present invention, the third elastic coefficient is smaller than the fourth elastic coefficient; the first elastic coefficient is greater than the second elastic coefficient; and when the first movable part moves in the third dimension, the first movable part does not drive the second movable part to move.

[0015] According to one embodiment of the present invention, a guide component corresponding to the second movable part is also included, wherein the guide component includes: a first guide part, which is flexible, wherein the second movable part drives the first movable part to move via the first guide part; and a second guide part, wherein the second movable part moves in the first dimension via the second guide part.

[0016] The foregoing summary is not intended to represent every embodiment or feature of the present invention. Rather, the foregoing summary merely provides examples of some of the novel features and characteristics set forth herein. The above features and advantages, as well as other features and advantages of the present invention, will become apparent from the following detailed description of representative embodiments and modes for practicing the present invention, when taken in conjunction with the accompanying drawings and the appended claims. Additional features of the present invention will be apparent to those skilled in the art from the detailed description of various embodiments provided below with reference to the accompanying drawings and the accompanying symbolic simplified illustrations. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention and its advantages will be better understood from the following description of exemplary embodiments in conjunction with the accompanying drawings, which illustrate exemplary embodiments only and are therefore not to be considered as limiting the various embodiments or claims.

[0018] Figure 1 A perspective view of an optical element driving mechanism and an optical element according to certain features of the present disclosure.

[0019] Figure 2 FIG2 is an exploded perspective view of an optical element driving mechanism and an optical element according to certain features of the present disclosure.

[0020] Figure 3 A perspective view of an optical element driving mechanism according to certain features of the present disclosure is shown, with the fixed portion removed for illustrative purposes and the first movable portion shown in phantom.

[0021] Figure 4 According to certain features of the present disclosure, a perspective view of an optical element driving mechanism is provided, wherein for illustrative purposes, the fixed portion is removed, and the first movable portion, the second movable portion, and the fourth movable portion are indicated by dotted lines.

[0022] The reference numerals are as follows:

[0023] 1: Optical element drive mechanism

[0024] 10: Optical components

[0025] 110: First Activity Department

[0026] 120: Second Activity Department

[0027] 130: Third Activity Department

[0028] 140: Fourth Activity Department

[0029] 200: Fixed part

[0030] 210: Shell

[0031] 220: Base

[0032] 230: Circuit components

[0033] 300: Drive components

[0034] 310: First drive unit

[0035] 312: First magnetic element

[0036] 314: First coil

[0037] 316, 318: Magnetic plate

[0038] 320: Second drive unit

[0039] 322: Second magnetic element

[0040] 324: Second coil

[0041] 326: Magnetic plate

[0042] 330: Third drive unit

[0043] 332: The third magnetic element

[0044] 334: The third coil

[0045] 336, 338: Magnetic plate

[0046] 340: Stable components

[0047] 342: Magnetic components

[0048] 344: Magnetic plate

[0049] 400: Booting component

[0050] 410: First guide part

[0051] 412: Sphere

[0052] 414: Ball slot

[0053] 420: Second guide part

[0054] 422: Sphere

[0055] 424: Ball slot

[0056] 430: Third guide section

[0057] 432: Sphere

[0058] 434: Ball slot

[0059] 440: Fourth guide

[0060] 442: Sphere

[0061] 444: Ball slot

[0062] 450: Fifth guide section

[0063] 451, 452: guide rod

[0064] 500: Sensing component

[0065] 510: First sensing element

[0066] 520: Second sensing element

[0067] 530: Third sensing element

[0068] D1: First Dimension

[0069] D2: The Second Dimension

[0070] D3: The Third Dimension

[0071] X1: First movement value

[0072] X2: Second movement value

[0073] X3: third movement value

[0074] X4: Fourth movement value DETAILED DESCRIPTION

[0075] Various embodiments are described with reference to the accompanying drawings, and similar reference symbols are used to designate similar or equivalent elements throughout the accompanying drawings. The accompanying drawings are not drawn to scale, and the accompanying drawings are provided only to illustrate the features and characteristics of the present disclosure. It should be understood that many specific details, relationships, and methods are set forth to provide a comprehensive understanding. However, it will be readily apparent to those skilled in the art that various embodiments can be practiced without one or more specific details or in other ways. In some cases, for illustrative purposes, well-known structures or operations are not shown in detail. Various embodiments are not limited to the order in which actions or events are displayed, as some actions can occur in different orders and / or simultaneously with other actions or events. In addition, not all of the actions or events shown are required for implementing certain features and characteristics of the present disclosure.

[0076] For purposes of this embodiment, the singular includes the plural and vice versa unless expressly stated otherwise. The term "including" means "including, but not limited to." Furthermore, approximate words such as "about," "almost," "substantially," and "approximately," and their equivalents, may mean herein, for example, "at," "near," "nearly at," "within 3-5% of," "within acceptable manufacturing tolerances," or any logical combination thereof. Additionally, the terms "vertical" or "horizontal" are intended to further include "within 3-5%" of the vertical or horizontal direction, respectively. Furthermore, directional words such as "top," "bottom," "left," "right," "above," and "below" are intended to be relative to equivalent directions depicted in the referenced figures; understood from the context of the referenced object or element, such as from a common position of the object or element; or other such descriptions.

[0077] It is understood that although the terms "first", "second", etc. may be used herein to describe various elements, layers and / or parts, these elements, layers and / or parts should not be limited by these terms, and these terms are only used to distinguish different elements, layers and / or parts. Therefore, a first element, layer and / or part discussed below may be referred to as a second element, layer and / or part without departing from the teachings of some embodiments of the present disclosure. In addition, for the sake of brevity, the terms "first", "second", etc. may not be used in the specification to distinguish different elements. Without violating the scope defined by the appended claims, the first element and / or second element recorded in the claims may be interpreted as any element that meets the description in the specification.

[0078] It should be noted that the technical solutions provided in the following different embodiments can be replaced, combined or mixed with each other to form another embodiment without violating the spirit of the present disclosure.

[0079] The present disclosure relates to an optical element driving mechanism, wherein a driving assembly thereof has a plurality of movable parts and guiding elements, which drive the movable parts and the optical element to flexibly move in various directions, thereby adjusting the photographic imaging of the optical element driving mechanism to adapt to different photographic requirements.

[0080] First, please see Figure 1 , Figure 1 1 is a front perspective view of an optical element driving mechanism 1 and an optical element 10 according to certain features of the present disclosure.

[0081] See also Figure 2 . Figure 2 The present invention is an exploded perspective view of an optical element driving mechanism 1 and an optical element 10 according to certain features of the present disclosure. The optical element driving mechanism 1 includes a first movable portion 110, a second movable portion 120, a third movable portion 130, a fourth movable portion 140, a fixed portion 200, a driving assembly 300, a guiding assembly 400, and a sensing assembly 500. The first movable portion 110 is connected to the optical element 10, which can be, for example, an optical lens. The first movable portion 110 can move relative to the fixed portion 200. The driving assembly 300 drives the first movable portion 110 to move. The sensing assembly 500 is used to sense the movement of the optical element 10.

[0082] The first movable portion 110 is movably connected to the second movable portion 120 and the fourth movable portion 140 via the guide assembly 400. The first movable portion 110 is movable relative to the second movable portion 120, the third movable portion 130, the fourth movable portion 140 and the fixed portion 200.

[0083] The second movable portion 120 is movably connected to the third movable portion 130 via the guide assembly 400. The second movable portion 120 can move in a first dimension D1 relative to the fixed portion 200, the third movable portion 130, and the fourth movable portion 140. The movement of the second movable portion 120 can drive the movement of the first movable portion 110.

[0084] The third movable portion 130 is movably connected to the fixed portion 200 via the guide assembly 400. The third movable portion 130 is movable relative to the second movable portion 120 and the fixed portion 200. The third movable portion 130 is movable relative to the fixed portion 200 in a second dimension D2. The movement of the third movable portion 130 drives the movement of the first movable portion 110, the second movable portion 120, and the fourth movable portion 140. When the third movable portion 130 moves, the second movable portion 120 does not drive the movement of the fourth movable portion 140.

[0085] The fourth movable portion 140 is movably connected to the third movable portion 130 via the guide assembly 400. The fourth movable portion 140 is movable in a third dimension D3 relative to the first movable portion 110, the second movable portion 120, the third movable portion 130, and the fixed portion 200. The movement of the fourth movable portion 140 drives the movement of the first movable portion 110. When the fourth movable portion 140 moves, it does not drive the movement of the second movable portion 120.

[0086] The fixing portion 200 includes a housing 210, a base 220, and a circuit assembly 230. The housing 210 and the base 220 are fixedly connected. The circuit assembly 230 is fixedly attached to the base 220. The space formed between the housing 210 and the base 220 accommodates other components of the optical element driving mechanism 1 and the optical element 10.

[0087] The driving assembly 300 includes a first driving unit 310 , a second driving unit 320 , a third driving unit 330 and a stabilizing assembly 340 .

[0088] The first drive unit 310 can be a drive unit such as a magnet and coil, a piezoelectric element, a stepper motor, or a shape memory alloy. In this embodiment, the first drive unit 310 includes two first magnetic elements 312, two first coils 314, and two magnetic conductive plates 316 and 318. The first magnetic element 312 is at least partially fixedly disposed on the second movable portion 120. The first coil 314 corresponds to the first magnetic element 312. The first coil 314 is fixedly disposed on the circuit assembly 230 of the fixed portion 200. A magnetic conductive plate 316 is disposed between the first magnetic element 312 and the second movable portion 120, and another magnetic conductive plate 318 is disposed above the first magnetic element 312 to prevent magnetic field interference.

[0089] The electromagnetic driving force generated between the first magnetic element 312 and the first coil 314 causes the first magnetic element 312 to move relative to the first coil 314. Consequently, the second movable portion 120 moves relative to the circuit assembly 230, driving the movement of the first movable portion 110 and the optical element 10. Therefore, the electromagnetic driving force generated between the first magnetic element 312 and the first coil 314 drives the second movable portion 120, which in turn drives the first movable portion 110 and the optical element 10 to move relative to the fixed portion 200.

[0090] The second drive unit 320 can be a drive unit such as a magnet and coil, a piezoelectric element, a stepping motor, or a shape memory alloy. In this embodiment, the second drive unit 320 includes a second magnetic element 322, a second coil 324, and a magnetically conductive plate 326. The second magnetic element 322 is at least partially fixedly disposed on the third movable portion 130. The second coil 324 corresponds to the second magnetic element 322. The second coil 324 is fixedly disposed on the circuit assembly 230 of the fixed portion 200. The magnetically conductive plate 326 is disposed between the second magnetic element 322 and the third movable portion 130.

[0091] The electromagnetic driving force generated between the second magnetic element 322 and the second coil 324 causes the second magnetic element 322 to move relative to the second coil 324. Consequently, the third movable portion 130 moves relative to the circuit assembly 230, driving the movement of the first movable portion 110, the second movable portion 120, and the optical element 10. Therefore, the electromagnetic driving force generated between the second magnetic element 322 and the second coil 324 drives the third movable portion 130 to move the first movable portion 110, the second movable portion 120, and the optical element 10 relative to the fixed portion 200, allowing the third movable portion 130 and the second movable portion 120 to move relative to the second coil 324.

[0092] The third drive unit 330 can be a drive unit such as a magnet and coil, a piezoelectric element, a stepper motor, or a shape memory alloy. In this embodiment, the third drive unit 330 includes two third magnetic elements 332, two third coils 334, and two magnetic conductive plates 336 and 338. The third magnetic element 332 is at least partially fixedly disposed on the fourth movable portion 140. The third coil 334 corresponds to the third magnetic element 332. The third coil 334 is fixedly disposed on the circuit assembly 230 of the fixed portion 200. A magnetic conductive plate 336 is disposed between the third magnetic element 332 and the fourth movable portion 140, and another magnetic conductive plate 338 is disposed above the third magnetic element 332 to prevent magnetic field interference.

[0093] The electromagnetic driving force generated between the third magnetic element 332 and the third coil 334 causes the third magnetic element 332 to move relative to the third coil 334. Consequently, the fourth movable portion 140 moves relative to the circuit assembly 230, driving the first movable portion 110 and the optical element 10 to move. Therefore, the electromagnetic driving force generated between the third magnetic element 332 and the third coil 334 drives the fourth movable portion 140 to move the first movable portion 110 and the optical element 10 relative to the fixed portion 200, allowing the third magnetic element 332 to move relative to the first magnetic element 312 and the first coil 314.

[0094] The multiple sets of drives of the first coil 314, the second coil 324, the third coil 334 and the first magnetic element 312, the second magnetic element 322, and the third magnetic element 332 of the driving component 300 allow the optical photography focal length of the optical element 10 to be adjusted to adapt to different external photography requirements, and provide sufficient driving force to withstand the weight of the first movable part 110, the second movable part 120, the third movable part 130, the fourth movable part 140 and the optical element 10.

[0095] The stabilizing assembly 340 includes a magnetic element 342 and a magnetic conductive plate 344. The magnetic element 342 is disposed on the third movable portion 130. The magnetic conductive plate 344 is disposed on the first movable portion 110. The attraction between the magnetic element 342 and the magnetic conductive plate 344 exerts opposing forces on the first magnetic element 312 and the second magnetic element 322, preventing the internal structure of the optical element driving mechanism 1 from overturning due to the excessive magnetic forces of the first magnetic element 312 and the second magnetic element 322.

[0096] The stabilizing assembly 340 stabilizes the internal structure of the optical element driving mechanism 1 and reduces operational errors of the driving assembly 300 during operation.

[0097] The guide assembly 400 corresponds to the second movable portion 120, the fourth movable portion 140, and the third movable portion 130. The guide assembly 400 flexibly connects the first movable portion 110, the second movable portion 120, the third movable portion 130, and the fourth movable portion 140. The guide assembly 400 includes a first guide portion 410, a second guide portion 420, a third guide portion 430, a fourth guide portion 440, and a fifth guide portion 450. The first guide portion 410, the second guide portion 420, the third guide portion 430, and the fourth guide portion 440 are all flexible. The first guide portion 410, the second guide portion 420, the third guide portion 430, and the fourth guide portion 440 correspond to the connection between the first movable portion 110 and the second movable portion 120, the connection between the second movable portion 120 and the third movable portion 130, the connection between the first movable portion 110 and the fourth movable portion 140, and the connection between the third movable portion 130 and the fourth movable portion 140, respectively.

[0098] Please refer to the following Figures 2 to 4 . Figure 3 According to certain features of the present disclosure, the optical element driving mechanism 1 is shown in a perspective view, wherein the fixed portion 200 is removed for illustrative purposes, and the first movable portion 110 is shown in dotted lines. Figure 4 According to certain features of the present disclosure, the optical element driving mechanism 10 is shown in a perspective view, in which the fixed portion 200 is removed for illustrative purposes, and the first movable portion 110 , the second movable portion 120 , and the fourth movable portion 140 are indicated by dotted lines.

[0099] The first guide portion 410 is movably connected to the second movable portion 120 and the first movable portion 110 . The second movable portion 120 drives the first movable portion 110 to move via the first guide portion 410 .

[0100] The second guide portion 420 is movably connected to the second movable portion 120 and the third movable portion 130 . The second movable portion 120 moves in the first dimension D1 via the second guide portion 420 .

[0101] The third guide portion 430 is movably connected to the fourth movable portion 140 and the first movable portion 110 . The fourth movable portion 140 drives the first movable portion 110 to move via the third guide portion 430 .

[0102] The fourth guide portion 440 is movably connected to the fourth movable portion 140 and the third movable portion 130. The fourth movable portion 140 moves in the third dimension D3 via the fourth guide portion 440.

[0103] The fifth guide portion 450 is movably connected to the third movable portion 130 and the base 220 of the fixed portion 200. The third movable portion 130 is driven by the fifth guide portion 450 to move in the second dimension D2.

[0104] In this embodiment, the guide assembly 400 is in the form of a ball and slot. The first guide portion 410 has three balls 412 and three ball slots 414. The ball slots 414 are elongated structures extending in the third dimension D3, allowing the balls 412 to move in the third dimension D3 when located within the ball slots 414. Because the balls 412 have little room to move in the first dimension D1, when the second movable portion 120 moves in the first dimension D1, the first movable portion 110 is also driven by the first guide portion 410. Conversely, because the balls 412 can move in the third dimension D3, when the first movable portion 110 moves in the third dimension D3, the second movable portion 120 is not driven by the first movable portion 110.

[0105] The second guide portion 420 has three balls 422 and three ball slots 424. The ball slots 424 are elongated structures extending in the first dimension D1. When the balls 422 are located within the ball slots 424, they can move in the first dimension D1. Therefore, when the second movable portion 120 is driven by the first drive unit 310, it can move relative to the third movable portion 130 in the first dimension D1.

[0106] The third guide portion 430 has three balls 432 and three ball slots 434. The ball slots 434 are elongated structures extending in the first dimension D1. When the balls 432 are located within the ball slots 434, they can move in the first dimension D1. Because the balls 432 have little room to move in the third dimension D3, when the fourth movable portion 140 moves in the third dimension D3, the first movable portion 110 is also moved by the third guide portion 430. Conversely, because the balls 432 can move in the first dimension D1, when the first movable portion 110 moves in the first dimension D1, the fourth movable portion 140 is not moved by the first movable portion 110.

[0107] The fourth guide portion 440 has three balls 442 and three ball slots 444. The ball slots 444 are elongated structures extending in the third dimension D3. When the balls 442 are located within the ball slots 444, they can move in the third dimension D3. Therefore, when the fourth movable portion 140 is driven by the third drive unit 330, it can move in the third dimension D3 relative to the third movable portion 130.

[0108] The fifth guide portion 450 has two guide rods 451 and 452. When the third movable portion 130 is driven by the second driving unit 320, the third movable portion 130 can move relative to the base 220 of the fixed portion 200 in the second dimension D2 via the two guide rods 451 and 452.

[0109] When the second movable portion 120 moves in the first dimension D1, it drives the first movable portion 110 to move. When the first movable portion 110 moves by a first movement value X1, the second movable portion 120 moves by a second movement value X2. Generally, the second movement value X2 is greater than or equal to the first movement value X1. For example, when the second movement value X2 is 10 microns, the first movement value X1 can be 10 microns or less.

[0110] When the first movable portion 110 moves in the third dimension D3, the first movable portion 110 hardly moves the second movable portion 120. In other words, when the first movable portion 110 moves in the third dimension D3 by a third movement value X3, the second movable portion 120 moves by a fourth movement value X4. In this case, the fourth movement value X4 is substantially zero.

[0111] The ratio of the fourth motion value X4 to the third motion value X3 is smaller than the ratio of the second motion value X2 to the first motion value X1. For example, the ratio of the second motion value X2 to the first motion value X1 is 1, while the ratio of the fourth motion value X4 to the third motion value X3 is 0.

[0112] Please continue to refer to Figure 2The sensing assembly 500 includes a first sensing element 510, a second sensing element 520, and a third sensing element 530. The first sensing element 510, the second sensing element 520, and the third sensing element 530 are all disposed in the circuit assembly 230. The first sensing element 510 is disposed in the first coil 314 to sense the movement of the second movable portion 120. The second sensing element 520 is disposed in the third coil 334 to sense the movement of the fourth movable portion 140. The third sensing element 530 is disposed in the second coil 324 to sense the movement of the third movable portion 130.

[0113] In another embodiment, the guide assembly 400 may be in the form of a spring (not shown). In this configuration, the first guide portion 410, the second guide portion 420, the third guide portion 430, and the fourth guide portion 440 are separate springs that individually connect the first movable portion 110, the second movable portion 120, the third movable portion 130, and the fourth movable portion 140.

[0114] The first guide portion 410 is a spring connecting the first movable portion 110 and the second movable portion 120. The second guide portion 420 is a spring connecting the second movable portion 120 and the third movable portion 130. The third guide portion 430 is a spring connecting the first movable portion 110 and the fourth movable portion 140. The fourth guide portion 440 is a spring connecting the third movable portion 130 and the fourth movable portion 140.

[0115] The first guide portion 410 is flexible and has a first elastic coefficient K1 corresponding to the first dimension D1 and a second elastic coefficient K2 corresponding to the third dimension D3. The first elastic coefficient K1 is different from the second elastic coefficient K2.

[0116] The second guiding portion 420 has a third elastic coefficient K3 corresponding to the first dimension D1 and a fourth elastic coefficient K4 corresponding to the third dimension D3 .

[0117] The third elastic coefficient K3 is smaller than the fourth elastic coefficient K4. The first elastic coefficient K1 is larger than the second elastic coefficient K2.

[0118] In an embodiment where the guide assembly 400 is flexible, when the first movable portion 110 moves in the third dimension D3, it can drive the second movable portion 120 to move. When the first movable portion 110 moves by the third movement value X3, due to the flexibility of the first guide portion 410, the second movable portion 120 is driven by the first movable portion 110 to move by the fourth movement value X4. Generally, the fourth movement value X4 is smaller than the third movement value X3. For example, when the fourth movement value X4 is 1 micron, the third movement value X3 can be 10 microns. In this embodiment, the ratio of the fourth movement value X4 to the third movement value X3 is 0.1.

[0119] In summary, the present invention provides an optical element driving mechanism, which includes a plurality of movable parts, a fixed part, a driving component, a guiding component, and a sensing component. The movement of the driving component drives the plurality of movable parts to move relative to each other and the fixed part. Thus, the position of the optical element can be adjusted to adapt to different photographic requirements and provide more stable optical quality. Furthermore, since the first coil, the second coil, the third coil, and the fourth coil of the sensing component and the driving component can be arranged on the circuit component of the fixed part, the present invention does not need to design complex circuit routing and corresponding structures on the movable part in order to electrically connect with the fixed part, thereby achieving the effect of reducing costs, simplifying the overall structure, and simplifying the circuit design.

[0120] Although the embodiments of the present invention have been shown and described with respect to one or more embodiments, equivalents and modifications will occur to those skilled in the art upon reading and understanding this specification and the accompanying drawings. In addition, although a particular feature of the present invention may have been described with respect to only one of several embodiments, for any given or particular application, such feature may be combined with one or more other features of the other embodiments as may be required and advantageous.

[0121] Although various embodiments of the present invention have been described above, it should be understood that these are presented by way of example only and not limitation. Various modifications may be made to the embodiments of the present invention described herein without departing from the spirit or scope of the present invention. Therefore, the breadth and scope of the present invention should not be limited by any of the above-described embodiments. Rather, the scope of the present invention should be defined by the following claims and their equivalents.

[0122] The terms used herein are for the purpose of describing specific embodiments only and are not intended to limit the present invention. As used herein, the singular forms "a," "an," and "the" are intended to include plural forms as well, unless the context clearly indicates otherwise. In addition, the terms "including, includes," "having, has, with," or variations thereof used in the embodiments and / or claims are intended to be included in a manner similar to the word "comprising."

Claims

1. An optical element driving mechanism, characterized in that: include: a first movable portion, configured to connect to an optical element; a fixed portion, the first movable portion being movable relative to the fixed portion; as well as a second movable portion movable in a first dimension relative to the fixed portion; A driving assembly for driving the first movable part to move, wherein: When the second movable part moves, the second movable part drives the first movable part to move; and The first movable portion can move relative to the second movable portion.

2. The optical element driving mechanism according to claim 1, wherein: The device further comprises a third movable portion, which is movable relative to the fixed portion in a second dimension, wherein: When the third movable part moves, the third movable part drives the first movable part and the second movable part to move; The first movable part is movable relative to the third movable part; The third movable portion can move relative to the second movable portion.

3. The optical element driving mechanism according to claim 2, wherein: The device further comprises a fourth movable portion, which is movable relative to the fixed portion in a third dimension, wherein: When the fourth movable part moves, the fourth movable part drives the first movable part to move; The fourth movable portion can move relative to the first movable portion and the second movable portion; When the fourth movable part moves, the fourth movable part does not drive the second movable part to move; When the third movable part moves, the second movable part does not drive the fourth movable part to move.

4. The optical element driving mechanism according to claim 3, wherein: The drive assembly includes: a first magnetic element, at least partially fixedly disposed on the second movable portion; a first coil corresponding to the first magnetic element, wherein the second movable portion is movable relative to the first coil; a second magnetic element, at least partially fixedly disposed on the third movable portion; a second coil corresponding to the second magnetic element, wherein the third movable portion and the second movable portion are movable relative to the second coil; A third magnetic element is at least partially fixedly disposed on the fourth movable portion, wherein the third magnetic element can move relative to the first magnetic element and the first coil.

5. The optical element driving mechanism according to claim 3, wherein: When the first movable portion moves in the first dimension, the first movable portion drives the second movable portion to move; and When the first movable portion moves a first movement value, the second movable portion moves a second movement value.

6. The optical element driving mechanism according to claim 5, wherein: When the first movable part moves in the third dimension, the first movable part drives the second movable part to move, and When the first movable part moves a third movement value, the second movable part moves a fourth movement value; wherein The fourth motion value is less than the third motion value; A ratio of the fourth motion value to the third motion value is different from a ratio of the second motion value to the first motion value; A ratio of the fourth motion value to the third motion value is smaller than a ratio of the second motion value to the first motion value.

7. The optical element driving mechanism according to claim 3, wherein: Also included is a guide assembly corresponding to the second movable portion, wherein the guide assembly includes: a first guide portion, which is flexible and has a first elastic coefficient corresponding to the first dimension and a second elastic coefficient corresponding to the third dimension, wherein the second movable portion drives the first movable portion to move via the first guide portion; and a second guide portion, which is flexible and has a third elastic coefficient corresponding to the first dimension and a fourth elastic coefficient corresponding to the third dimension, wherein the second movable portion moves relative to the fixed portion via the second guide portion; The third elastic coefficient is different from the fourth elastic coefficient; The first elastic coefficient is different from the second elastic coefficient.

8. The optical element driving mechanism according to claim 7, wherein: The third elastic coefficient is smaller than the fourth elastic coefficient; The first elastic coefficient is greater than the second elastic coefficient; and When the first movable part moves in the third dimension, the first movable part does not drive the second movable part to move.

9. The optical element driving mechanism according to claim 3, wherein: Also included is a guide assembly corresponding to the second movable portion, wherein the guide assembly includes: a first guide portion having flexibility, wherein the second movable portion drives the first movable portion to move via the first guide portion; and A second guide portion, through which the second movable portion moves in the first dimension.

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