Optical element driving mechanism

Abstract

An optical element driving mechanism includes a first movable part, a fixed part, and a driving assembly. The first movable part is configured to connect a first optical element. The first movable part is movable relative to the fixed part. The driving assembly is configured to drive the first movable part to move.

Description

Technical Field

[0001] This utility model relates to an optical element driving mechanism, and more particularly to an anti-shake optical element driving mechanism composed of a plurality of movable parts and fixed parts. Background Technology

[0002] With the development of technology, many electronic devices today (such as laptops, smartphones, or digital cameras) have the function of taking pictures or recording videos. As the use of these electronic devices becomes more and more widespread, in addition to convenient and thin and light designs, there is also a need to develop more stable and better optical quality to provide users with more choices.

[0003] The aforementioned electronic devices with photographic or video recording functions typically include one or more lenses to achieve focusing, zooming, and / or optical image stabilization (OIS) functions. Therefore, the optical element drive mechanism usually includes multiple drive components that drive the movement of the optical elements. To improve image stability, lens modules often employ a two-axis optical image stabilization structure capable of compensation along two axes (e.g., the X and Y axes) to reduce image blur caused by hand tremors.

[0004] However, existing two-axis lens-type optical image stabilization structures usually require multi-layer structures or multiple moving parts to achieve multi-directional movement, which increases the overall module height, increases assembly difficulty, and requires more components and materials, which is not conducive to module thinning and cost control.

[0005] Therefore, it is necessary to provide a novel anti-shake two-axis optical element drive mechanism that can achieve dual-axis compensation of the lens assembly at a limited height, and reduce assembly complexity and overall height by simplifying the structure. Utility Model Content

[0006] The terms used in the embodiments and similar terms (e.g., implementation, configuration, feature, example, and option) are intended to refer broadly to all objects of this invention and the following claims. Several statements containing these terms should be understood as not limiting the object described herein or limiting the meaning or scope of the following claims. The embodiments of the invention covered herein are defined by the following claims, not the content of this invention. This content is a high-level overview of various features of the invention and introduces some concepts further described in the following description paragraphs. This content is not intended to identify key or essential features of the object of the claims, nor is it intended to be used independently to determine the scope of the object of the claims. The object of this invention should be understood through reference to appropriate portions of the complete specification of this invention, any or all of the drawings, and each claim.

[0007] The purpose of this invention is to provide an optical element driving mechanism to solve at least one of the above-mentioned problems.

[0008] According to certain features of this utility model, an optical element driving mechanism is provided, including a first movable part, a fixed part, and a driving assembly. The first movable part is configured to connect to an optical element. The first movable part is movable relative to the fixed part. The driving assembly is configured to drive the first movable part to move relative to the fixed part.

[0009] According to certain features of this invention, the optical element driving mechanism further includes a second movable part. The second movable part is movable relative to the fixed part, and the first movable part is movable relative to the second movable part. The fixed part is connected to a second optical element. The first optical element is movable relative to the second optical element.

[0010] According to certain features of this utility model, the second movable part includes: a main body plate having a flat plate, a plurality of holes and a reinforcing plate, wherein the plurality of holes are located on the flat plate and the reinforcing plate extends perpendicularly to the flat plate; and a plurality of connecting elements, individually accommodated in corresponding holes of the plurality of holes in the main body plate.

[0011] According to certain features of this utility model, the fixing part includes: a housing having a notch near the reinforcing plate, the housing accommodating the first optical element, the first movable part, the second movable part, and the driving assembly; and a base having a protrusion near the reinforcing plate, the base being fixedly connected to the housing, wherein the notch and the protrusion have matching shapes.

[0012] According to certain features of this utility model, the first movable part includes a first movable guide groove, a second movable guide groove, and a third movable guide groove, and the plurality of connecting elements individually move within the corresponding first movable guide groove, the second movable guide groove, and the third movable guide groove; the fixed part includes a first fixed guide groove, a second fixed guide groove, and a third fixed guide groove, and the plurality of connecting elements individually move within the corresponding first fixed guide groove, the second fixed guide groove, and the third fixed guide groove; the first movable guide groove, the second movable guide groove, and the third movable guide groove extend along a first direction; the first fixed guide groove, the second fixed guide groove, and the third fixed guide groove extend along a second direction; and the first direction and the second direction are not parallel.

[0013] According to certain features of this utility model, the first movable guide groove has a V-shaped cross section; the second movable guide groove has a U-shaped cross section; the first fixed guide groove has a U-shaped cross section; and the second fixed guide groove has a V-shaped cross section.

[0014] According to certain features of this utility model, the driving assembly includes: a first magnetic element disposed on the first movable part; a first coil disposed on the fixed part corresponding to the first magnetic element, the first magnetic element and the first coil driving the first movable part to move in a first direction; a second magnetic element disposed on the first movable part; a second coil disposed on the fixed part corresponding to the second magnetic element, the second magnetic element and the second coil driving the second movable part and the first movable part to move in a second direction; and a magnetically conductive element indirectly attracting the first magnetic element and the second magnetic element.

[0015] According to certain features of this utility model, when viewed along an incident optical axis of the first optical element: the plurality of connecting elements do not overlap with the first magnetic element; and the distance between the center of the first optical element and the center of one of the plurality of connecting elements is less than the distance between the center of the first optical element and the center of the first magnetic element.

[0016] According to certain features of this utility model, when viewed along an incident optical axis of the first optical element: the plurality of connecting elements partially overlap with the first magnetic element; and the distance between the center of the first optical element and the center of one of the plurality of connecting elements is greater than the distance between the center of the first optical element and the center of the first magnetic element.

[0017] According to certain features of this utility model, when viewed along the incident optical axis: the first movable guide groove, the third movable guide groove, the first fixed guide groove, and the third fixed guide groove are located on the same side of the first optical element; the second fixed guide groove and the second movable guide groove are located on the other side of the first optical element; and the first magnetic element and the second magnetic element are located on the same side of the first optical element as the first movable guide groove.

[0018] The beneficial effects of this invention are that the optical element driving mechanism, through the aforementioned integrated design, facilitates assembly. It not only effectively improves the accuracy and stability of optical element adjustment but also simplifies the assembly process, enhances structural reliability, and improves the miniaturization and process integration of the overall module. Consequently, the position of the optical element can be adjusted to provide more stable optical quality. Complex optical adjustment actions can be achieved with fewer parts within a limited space, making it suitable for applications such as camera modules and optical instruments.

[0019] The foregoing description of this utility model is not intended to present every embodiment or feature of the present utility model. Rather, it provides only examples of some novel features and characteristics set forth herein. The above-described features and advantages, as well as other features and advantages, will become apparent to those skilled in the art from the following detailed description of representative embodiments and modes for carrying out the present utility model, taken in conjunction with the accompanying drawings and the appended claims. Additional features of the present utility model will be apparent to those skilled in the art from the following brief description of various embodiments with reference to the accompanying drawings and the provided symbols. Attached Figure Description

[0020] The present invention and its advantages, along with the accompanying drawings, will be better understood from the following description of exemplary embodiments in conjunction with the accompanying drawings. These drawings illustrate exemplary embodiments only and should therefore not be construed as limiting the various embodiments or claims.

[0021] Figure 1A A perspective view of an optical element driving mechanism, a first optical element, and a second optical element, according to certain aspects of the present invention.

[0022] Figure 1B The perspective view of the optical element driving mechanism, the first optical element, and the second optical element is shown in accordance with certain features of the present invention. For illustrative purposes, the housing of the optical element driving mechanism has been removed.

[0023] Figure 2 An exploded view of an optical element drive mechanism, a first optical element, and a second optical element, according to certain aspects of this utility model.

[0024] Figure 3A For the purpose of illustration, a top view of the optical element drive mechanism, the first optical element, and the second optical element is shown, with the housing removed, and the first movable part of the optical element drive mechanism shown as a dashed line.

[0025] Figure 3B According to certain features of this utility model, a top view of the optical element driving mechanism and the second optical element is provided. For illustrative purposes, the housing, the main body plate of the first movable part, the second movable part, and part of the driving assembly have been removed.

[0026] Figure 3C For the purpose of illustration, a top view of the optical element drive mechanism, the first optical element, and the second optical element is shown, according to certain features of the present invention. The housing and the main body plate are removed, and the first movable part is shown as a dashed line.

[0027] Figure 4According to certain aspects of this utility model, the optical element driving mechanism, the first optical element, and the second optical element are along... Figure 1A A cross-sectional view of line AA.

[0028] Figure 5 The following is a bottom view of the optical element driving mechanism, the first optical element, and the second optical element according to certain aspects of the present invention. For illustrative purposes, the base of the optical element driving mechanism and the circuit assembly are shown as dashed lines.

[0029] Figure 6 For certain aspects of this utility model, a bottom view of another optical element drive mechanism, a first optical element, and a second optical element is provided. For illustrative purposes, the base and circuit components are shown as dashed lines.

[0030] Figure 7A The present invention provides a perspective view of an optical element driving mechanism, a first optical element, and a second optical element according to certain aspects of the present invention.

[0031] Figure 7B The perspective view of the optical element driving mechanism, the first optical element, and the second optical element is shown in accordance with certain features of the present invention. For illustrative purposes, the housing of the optical element driving mechanism has been removed.

[0032] Figure 8 An exploded view of an optical element drive mechanism, a first optical element, and a second optical element, according to certain aspects of this utility model.

[0033] Figure 9A For certain features of this utility model, a top view of the optical element drive mechanism, the first optical element, and the second optical element is shown, with the housing removed for illustrative purposes, and the first base of the optical element drive mechanism shown as a dashed line.

[0034] Figure 9B For illustrative purposes, a top view of the optical element drive mechanism and the second optical element is provided, with the housing, first base, and main body plate removed.

[0035] Figure 9C For the purpose of illustration, a top view of the optical element drive mechanism, the first optical element, and the second optical element is shown, according to certain features of the present invention. The housing and main body plate are removed, and the first base is shown as a dashed line.

[0036] Figure 10 According to certain aspects of this utility model, the optical element driving mechanism, the first optical element, and the second optical element are along... Figure 1A A cross-sectional view of line BB.

[0037] Figure 11 The following is a bottom view of the optical element driving mechanism, the first optical element, and the second optical element according to certain aspects of the present invention. For illustrative purposes, the second base of the optical element driving mechanism is shown as a dashed line.

[0038] The attached figures are labeled as follows:

[0039] 1, 1', 2: Optical element driving mechanism

[0040] 10, 1010: First optical element

[0041] 20, 1020: Second optical element

[0042] 100, 1100: First Activity Department

[0043] 101, 1101: Opening

[0044] 110, 1110: First movable guide groove

[0045] 120, 1120: Second movable guide groove

[0046] 130, 1130: Third movable guide groove

[0047] 200, 1200: Second Activity Department

[0048] 210, 1210: Main body panel

[0049] 211, 1211: Opening

[0050] 212, 1212: Flat panel

[0051] 1213: Opening

[0052] 214, 1214: Reinforcing plate

[0053] 216, 1216: Hole

[0054] 220, 1220: Connecting elements

[0055] 300, 1300: Fixed part

[0056] 310, 1310: Outer casing

[0057] 311, 1311: Opening

[0058] 312, 1312: Notch

[0059] 320, 320': Base

[0060] 1320 Second Base

[0061] 1325: First base

[0062] 321, 1321: Opening

[0063] 322, 1322: First fixed guide groove

[0064] 324, 1324: Second fixed guide groove

[0065] 326, 1326: Third fixed guide groove

[0066] 328, 1328: convex part

[0067] 329, 329': Opening

[0068] 330, 1330: Circuit components

[0069] 331, 1331: First sensing element

[0070] 332, 1332: Second sensing element

[0071] 400, 1400: Driver components

[0072] 410, 1410: First magnetic element

[0073] 420, 1420: Second magnetic element

[0074] 430, 1430: First coil

[0075] 440, 1440: Second coil

[0076] 450, 450', 1450: Magnetic elements

[0077] O1, O2: Incident optical axis

[0078] A1: Area

[0079] D1: First Direction

[0080] D2: Second Direction

[0081] C1, C2, C3, C4, C5, C6: Center

[0082] d1, d2, d3, d4: Distance Detailed Implementation

[0083] Various embodiments are described with reference to the accompanying drawings, throughout which similar reference numerals are used to designate similar or equivalent elements. The drawings are not drawn to scale and are provided solely to illustrate the features and characteristics of the invention. It should be understood that many specific details, relationships, and methods are set forth to provide a comprehensive understanding. However, those skilled in the art will readily appreciate that various embodiments may be practiced without one or more specific details or in other ways. In some cases, well-known structures or operations are not shown in detail for illustrative purposes. The various embodiments are not limited to the order in which actions or events are shown, as some actions may occur in different orders and / or simultaneously with other actions or events. Furthermore, not all actions or events shown are necessary to implement certain features and characteristics of the invention.

[0084] For the purposes of this embodiment, unless explicitly stated otherwise, the singular includes the plural and vice versa. The term "including" means "including but not limited to". Furthermore, approximate words such as "about (bout), almost, substantially, approximately)" and similar words may be meant herein as, 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%" in the vertical or horizontal direction, respectively. Furthermore, directional words such as "top," "bottom," "left," "right," "above," and "below" are intended to relate to the equivalent directions depicted in the reference illustrations; to be understood from the context of the reference object or element, such as from its usual location; or other such descriptions.

[0085] It is understood that although terms such as "first," "second," etc., may be used herein to describe various elements, layers, and / or portions, these elements, layers, and / or portions should not be limited by these terms, and these terms are only used to distinguish different elements, layers, and / or portions. Therefore, a first element, layer, and / or portion discussed below may be referred to as a second element, layer, and / or portion without departing from the teachings of some embodiments of this utility model. Furthermore, for the sake of brevity, the terms "first," "second," etc., may not be used in the specification to distinguish different elements. Without departing from the scope defined by the appended claims, the first and / or second elements recited in the claims may be interpreted as any element described in the specification.

[0086] It should be noted that the technical solutions provided in the different embodiments below can be substituted for, combined or mixed with each other to constitute another embodiment without violating the spirit of this utility model.

[0087] This utility model relates to an optical element driving mechanism, which has a movable part and a plurality of movable parts and fixed parts, can provide a variety of movements, has a simplified structural configuration to improve driving efficiency and structural stability, and can achieve more precise or diverse optical control, thereby adjusting the photographic imaging of the optical module to adapt to different photographic needs.

[0088] Please refer to the following: Figures 1A to 2 . Figure 1A A perspective view of an optical element driving mechanism 1, a first optical element 10, and a second optical element 20, according to certain aspects of the present invention.

[0089] Figure 1B The perspective view of the optical element driving mechanism 1, the first optical element 10 and the second optical element 20 is shown in accordance with certain features of the present invention. For illustrative purposes, the housing 310 of the optical element driving mechanism 1 has been removed.

[0090] Figure 2 An exploded view of the optical element drive mechanism 1, the first optical element 10, and the second optical element 20, according to certain aspects of the present invention.

[0091] The optical element driving mechanism 1 includes a first movable part 100, a second movable part 200, a fixed part 300, and a driving assembly 400. The first movable part 100 is connected to a first optical element 10. The first movable part 100 is movable relative to the fixed part 300 and the second movable part 200. The second movable part 200 is movable relative to the fixed part 300. The fixed part 300 is connected to a second optical element 20. The driving assembly 400 drives the first movable part 100 and the second movable part 200 to move. The first optical element 10 located in the first movable part 100 can be driven by the driving assembly 400 to move relative to the second optical element 20 located in the fixed part 300.

[0092] The first optical element 10 and the second optical element 20 can be, for example, optical lenses. The first optical element 10 is disposed on the first movable part 100 to achieve the function of optical image stabilization (OIS). The second optical element 20 can be disposed on a lens driving device (not shown) to achieve the function of optical image stabilization (OIS). Incident light from the outside passes through the optical element driving mechanism 1 along an incident optical axis O1 to reach the first optical element 10 and the second optical element 20.

[0093] The first movable section 100 includes an opening 101, a first movable guide groove 110, a second movable guide groove 120, and a third movable guide groove 130 (see below). Figure 3A The first optical element 10 is disposed in the opening 101. The first movable guide groove 110, the second movable guide groove 120, and the third movable guide groove 130 extend along a first direction D1 (see...). Figure 3A The first movable guide groove 110, the second movable guide groove 120, and the third movable guide groove 130 are used to indirectly connect the fixed part 300 via the connecting element 220 of the second movable part 200, as will be described in detail below. The first movable guide groove 110, the second movable guide groove 120, and the third movable guide groove 130 may have different shapes. For example, in this embodiment, the first movable guide groove 110 has a V-shaped cross section, the second movable guide groove 120 has a U-shaped cross section, and the third movable guide groove 130 has a V-shaped cross section.

[0094] Please continue to refer to the following. Figure 2 The second active part 200 includes a main body plate 210 and a plurality of connecting elements 220. The main body plate 210 has an opening 211 for incident light to pass through, a plate 212, a plurality of holes 216, and a reinforcing plate 214. The plurality of holes 216 are located on the plate 212. The reinforcing plate 214 extends perpendicular to the plate 212.

[0095] In this embodiment, the connecting element 220 may be a sphere, individually accommodated within the corresponding hole 216, and fixed to the hole 216 of the main body plate 210 by welding or soldering, but is not limited thereto. The connecting element 220 connects the first movable part 100, the second movable part 200, and the fixing part 300. In this embodiment, there are three connecting elements 220.

[0096] The fixing part 300 includes a housing 310, a base 320, and a circuit assembly 330. The housing 310 and the base 320 are fixedly connected to accommodate the first optical element 10, the first movable part 100, the second movable part 200, and the drive assembly 400.

[0097] The outer casing 310 may be made of metal, having an opening 311 for incident light to pass through and a recess 312 near the reinforcing plate 214. The base 320 may be made of plastic, having an opening 321 for incident light to pass through and a protrusion 328 near the reinforcing plate 214. The recess 312 and the protrusion 328 have a matching shape, and when the outer casing 310 and the base 320 are combined, the recess 312 and the protrusion 328 form a snap-fit ​​structure.

[0098] The base 320 of the fixing part 300 includes a first fixing guide groove 322, a second fixing guide groove 324, and a third fixing guide groove 326. The connecting element 220 moves individually within the corresponding first fixing guide groove 322, second fixing guide groove 324, and third fixing guide groove 326. The first fixing guide groove 322, second fixing guide groove 324, and third fixing guide groove 326 extend along a second direction D2 (see...). Figure 3B The first direction D1 and the second direction D2 are not parallel.

[0099] The first fixed guide groove 322, the second fixed guide groove 324, and the third fixed guide groove 326 may have different shapes. For example, in this embodiment, the first fixed guide groove 322 has a U-shaped cross-section, the second fixed guide groove 324 has a V-shaped cross-section, and the third fixed guide groove 326 has a V-shaped cross-section.

[0100] The circuit assembly 330 of the fixing part 300 has a first sensing element 331 and a second sensing element 332 for sensing the position of the first magnetic element 410 and the second magnetic element 420 of the driving assembly 400.

[0101] The driving assembly 400 includes a first magnetic element 410, a second magnetic element 420, a first coil 430, a second coil 440, and a magnetically conductive element 450. In this embodiment, each side of the second movable part 200 has a first magnetic element 410, a second magnetic element 420, a first coil 430, a second coil 440, and a magnetically conductive element 450. The first magnetic element 410 is disposed on the first movable part 100. The first coil 430 is disposed on the base 320 of the fixed part 300, corresponding to the first magnetic element 410. The first magnetic element 410 and the first coil 430 drive the first movable part 100 to move in a first direction D1.

[0102] A second magnetic element 420 is disposed on the first movable part 100. A second coil 440 is disposed on the base 320 of the fixed part 300, corresponding to the second magnetic element 420. The second magnetic element 420 and the second coil 440 drive the second movable part 200 and the first movable part 100 to move in the second direction D2. A magnetically conductive element 450 is disposed on the base 320, indirectly attracting the first magnetic element 410 and the second magnetic element 420, so that the base 320, the first coil 430, and the second coil 440 are close to the first magnetic element 410 and the second magnetic element 420.

[0103] Please refer to the following: Figures 3A to 3C The configuration of the first movable part 100, the second movable part 200, and the fixed part 300 is displayed. Figure 3AAccording to certain features of this utility model, a top view of the optical element driving mechanism 1, the first optical element 10 and the second optical element 20 is shown. For illustrative purposes, the housing 310 is removed, and the first movable part 100 of the optical element driving mechanism 1 is shown as a dashed line.

[0104] Figure 3B For the purpose of illustration, a top view of the optical element drive mechanism 1 and the second optical element 20 is provided, with the housing 310, the first movable part 100, the second movable part 200, and the first magnetic element 410 and the second magnetic element 420 removed.

[0105] Figure 3C According to certain features of this utility model, a top view of the optical element drive mechanism 1, the first optical element 10 and the second optical element 20 is shown. For illustrative purposes, the housing 310 and the main body plate 210 are removed, and the first movable part 100 is shown as a dashed line.

[0106] The first magnetic element 410 moves relative to the first coil 430 due to the electromagnetic driving force generated between the first magnetic element 410 and the first coil 430. Consequently, the first movable part 100 moves relative to the fixed part 300 in the first direction D1. The first movable part 100 drives the movement of the first optical element 10. Therefore, the electromagnetic driving force generated between the first magnetic element 410 and the first coil 430 can drive the first movable part 100 to move the first optical element 10 relative to the fixed part 300.

[0107] The electromagnetic driving force generated between the second magnetic element 420 and the second coil 440 causes the second magnetic element 420 to move relative to the second coil 440. Consequently, the first movable part 100 moves relative to the fixed part 300 in the second direction D2. The first movable part 100 drives the movement of the second movable part 200 and the first optical element 10. Therefore, the electromagnetic driving force generated between the second magnetic element 420 and the second coil 440 can drive the first movable part 100 to move the second movable part 200 and the first optical element 10 relative to the fixed part 300.

[0108] The movement of the first movable part 100 and the second movable part 200 will be described in detail below. The first movable part 100 is movably connected to the second movable part 200 and the fixed part 300 via the first movable guide groove 110, the second movable guide groove 120, the third movable guide groove 130, the connecting element 220, the first fixed guide groove 322, the second fixed guide groove 324, and the third fixed guide groove 326.

[0109] In this embodiment, the relative movement between the first movable part 100, the second movable part 200, and the fixed part 300 is achieved in the form of a sphere and a groove. A total of three spherical connecting elements 220 correspond to six guide grooves: a first movable guide groove 110, a second movable guide groove 120, a third movable guide groove 130, a first fixed guide groove 322, a second fixed guide groove 324, and a third fixed guide groove 326. Each connecting element 220 individually moves between a corresponding movable guide groove and a fixed guide groove.

[0110] The first movable guide groove 110, the second movable guide groove 120, and the third movable guide groove 130 have elongated structures extending in the first direction D1, so that when the connecting element 220 is located within the movable guide groove, it can move in the first direction D1. Therefore, when the first magnetic element 410 drives the first movable part 100 to move relative to the fixed part 300 in the first direction D1, the first movable part 100 moves along the first movable guide groove 110, the second movable guide groove 120, and the third movable guide groove 130 via the connecting element 220.

[0111] Since the second fixed guide groove 324 and the third fixed guide groove 326 have V-shaped cross sections extending in the second direction D2, the fixed connecting element 220 has almost no room to move relative to the fixed part 300 in the first direction D1. Therefore, the movement of the first movable part 100 in the first direction D1 does not drive the movement of the second movable part 200.

[0112] The first fixed guide groove 322, the second fixed guide groove 324, and the third fixed guide groove 326 have elongated structures extending in the second direction D2, so that when the connecting element 220 is located in the fixed guide groove, it can move in the second direction D2. Therefore, when the second magnetic element 420 drives the first movable part 100 to move relative to the fixed part 300 in the second direction D2, the first movable part 100 drives the second movable part 200 to move along the first fixed guide groove 322, the second fixed guide groove 324, and the third fixed guide groove 326, through the connecting element 220.

[0113] Since the first movable guide groove 110 and the third movable guide groove 130 have V-shaped cross sections, the fixed connecting element 220 moves relative to the first movable part 100 in the second direction D2. Therefore, the connecting element 220 has almost no room to move relative to the first movable part 100 in the second direction D2 (that is, the relative movement between the connecting element 220 and the first movable part 100 is almost zero). Thus, the movement of the first movable part 100 in the second direction D2 not only drives the movement of the connecting element 220 in the second direction D2, but also drives the movement of the second movable part 200 in the second direction D2.

[0114] Thus, the first movable part 100 moves in the first direction D1 via the first movable guide groove 110, the second movable guide groove 120 and the third movable guide groove 130.

[0115] The first movable part 100 and the second movable part 200 move in the second direction D2 via the first fixed guide groove 322, the second fixed guide groove 324 and the third fixed guide groove 326.

[0116] Please refer to the following: Figures 3C to 4 . Figure 4 According to certain aspects of this utility model, the optical element driving mechanism 1, the first optical element 10, and the second optical element 20 are along... Figure 1A A cross-sectional view of line AA.

[0117] The first movable guide groove 110, the third movable guide groove 130, the second fixed guide groove 324, and the third fixed guide groove 326 have V-shaped cross sections. The second movable guide groove 120 and the first fixed guide groove 322 have U-shaped cross sections. The V-shaped guide grooves restrict the connecting element 220 to slide in one direction (e.g., the first direction D1), while the U-shaped guide grooves allow the connecting element 220 to slide in two directions (e.g., the first direction D1 and the second direction D2). Arranging a few U-shaped guide grooves among the majority of V-shaped guide grooves allows the movable part to move in the desired direction while allowing slight adjustments to its relative position without causing collisions in an overly confined movement space.

[0118] Please refer to the following. Figure 5 . Figure 5 The following is a bottom view of the optical element driving mechanism 1, the first optical element 10 and the second optical element 20 according to certain aspects of the present invention. For illustrative purposes, the base 320 and the circuit assembly 330 of the optical element driving mechanism 1 are shown as dashed lines.

[0119] When observed along the incident optical axis O1 of the first optical element 10 (i.e., along...) Figure 5 When viewed from a certain angle, the connecting element 220 and the first magnetic element 410 do not overlap. The distance d1 between the center C1 of the first optical element 10 and the center C2 of the connecting element 220 is less than the distance d2 between the center C1 of the first optical element 10 and the center C3 of the first magnetic element 410. Furthermore, the distance d1 is also less than the distance between the center C1 and the center of the second magnetic element 420.

[0120] exist Figure 5 As can be seen, the base 320 also has an opening 329 corresponding to the magnetic element 450. The magnetic element 450 is disposed in the opening 329 of the base 320, between the first magnetic element 410 and the second magnetic element 420, and when viewed along the incident optical axis O1 (i.e., along...), Figure 5When viewed from a certain angle, the magnetic element 450 partially overlaps with the first magnetic element 410 and the second magnetic element 420 to attract the base 320 towards the first magnetic element 410 and the second magnetic element 420. This causes the base 320 to move closer to the second movable part 200 and the first movable part 100, clamping the connecting element 200, reducing the structural thickness and stabilizing the internal structure.

[0121] Please refer to the following. Figure 6 . Figure 6 The bottom view of another optical element drive mechanism 1', the first optical element 10 and the second optical element 20 according to certain aspects of the present invention is shown in dashed lines for illustrative purposes, with the base 320' and the circuit assembly 330 shown in dashed lines.

[0122] Figure 6 The optical element driving mechanism 1' shows another configuration of this embodiment. Similar elements are labeled with the same symbols. In the optical element driving mechanism 1', the magnetically conductive element 450' on one side corresponds to the second magnetic element 420, i.e., along... Figure 6 When viewed from a certain angle, the magnetic element 450' overlaps with the second magnetic element 420. Furthermore, the opening 329' of the base 320 corresponding to the magnetic element 450' also overlaps with the second magnetic element 420. This configuration causes the magnetic element 450' to individually adhere to the second magnetic element 420.

[0123] Please refer to the following: Figures 7A to 8 This illustrates another embodiment of the optical element driving mechanism 2. The optical element driving mechanism 2 is similar to the optical element driving mechanism 1, with the main difference being the configuration of the driving components and the guide grooves and connecting elements, as will be detailed below. Similar elements are indicated by similar symbols.

[0124] Figure 7A A perspective view of an optical element driving mechanism 2, a first optical element 1010, and a second optical element 1020, according to certain aspects of the present invention.

[0125] Figure 7B The perspective view of the optical element driving mechanism 2, the first optical element 1010 and the second optical element 1020 is shown in accordance with certain features of the present invention. For illustrative purposes, the housing 1300 of the optical element driving mechanism 2 has been removed.

[0126] Figure 8 An exploded view of the optical element drive mechanism 2, the first optical element 1010, and the second optical element 1020 according to certain aspects of the present invention.

[0127] The optical element driving mechanism 2 includes a first movable part 1100, a second movable part 1200, a fixed part 1300, and a driving assembly 1400. The first movable part 100 is connected to a first optical element 1010. The first movable part 1100 is movable relative to the fixed part 1300 and the second movable part 1200. The second movable part 1200 is movable relative to the fixed part 1300. The fixed part 1300 is connected to a second optical element 1020. The driving assembly 1400 drives the first movable part 1100 and the second movable part 1200 to move. The first optical element 1010 located in the first movable part 1100 can be driven by the driving assembly 1400 to move relative to the second optical element 1020 located in the fixed part 1300.

[0128] An incident light from the outside passes through an incident light axis O2 through an optical element drive mechanism 2 and reaches the first optical element 1010 and the second optical element 1020.

[0129] The first movable part 1100 includes an opening 1101, a first movable guide groove 1110, a second movable guide groove 1120, and a third movable guide groove 1130. A first optical element 1010 is disposed in the opening 1101. The first movable guide groove 1110, the second movable guide groove 1120, and the third movable guide groove 1130 extend along a first direction D1 (see...). Figure 9B The connecting element 1220 of the second movable part 1200 is used to indirectly connect the fixed part 1300, as will be described in detail below. The first movable guide groove 1110, the second movable guide groove 1120, and the third movable guide groove 1130 may have different shapes. For example, in this embodiment, the first movable guide groove 1110 has a V-shaped cross section, the second movable guide groove 1120 has a U-shaped cross section, and the third movable guide groove 1130 has a V-shaped cross section.

[0130] Please continue to refer to the following. Figure 8 The second active part 1200 includes a main body plate 1210 and a plurality of connecting elements 1220. The main body plate 1210 has an opening 1211 for incident light to pass through, a plate 1212, a plurality of holes 1216, and a reinforcing plate 1214. The plurality of holes 1216 are located on the plate 1212. The reinforcing plate 1214 extends perpendicular to the plate 1212.

[0131] In this embodiment, the connecting element 1220 may be a sphere, individually accommodated within the corresponding hole 1216, and fixed to the hole 1216 of the main body plate 1210 by welding or soldering, but is not limited thereto. The connecting element 1220 connects the first movable part 1100, the second movable part 1200, and the fixing part 1300. In this embodiment, there are three connecting elements 1220.

[0132] Unlike the single base of the optical element driving mechanism 1, the base of the optical element driving mechanism 2 is divided into a first base 1325 and a second base 1320. Therefore, the fixing part 1300 of the optical element driving mechanism 2 includes a housing 1310, a first base 1325, a second base 1320, and a circuit assembly 1330. The first base 1325 is attached to the housing 1310. The housing 1310 and the second base 1320 are fixedly connected to accommodate the first base 1325, the first optical element 1010, the first movable part 1100, the second movable part 1200, and the driving assembly 1400.

[0133] The outer casing 1310 has an opening 1311 for incident light to pass through and a notch 1312 near the reinforcing plate 1214. The second base 1320 has an opening 1321 for incident light to pass through and a protrusion 1328 near the reinforcing plate 1214. The notch 1312 and the protrusion 1328 have matching shapes, and when the outer casing 1310 and the second base 1320 are combined, the notch 1312 and the protrusion 1328 form a snap-fit ​​structure.

[0134] The first base 1325 of the fixing part 1300 includes a first fixing guide groove 1322, a second fixing guide groove 1324 and a third fixing guide groove 1326 (see below). Figure 9A The connecting element 1220 moves individually within the corresponding first fixed guide groove 1322, second fixed guide groove 1324, and third fixed guide groove 1326. The first fixed guide groove 1322, second fixed guide groove 1324, and third fixed guide groove 1326 extend along the second direction D2 (see...). Figure 9A The first direction D1 and the second direction D2 are not parallel.

[0135] The first fixed guide groove 1322, the second fixed guide groove 1324, and the third fixed guide groove 1326 may have different shapes. For example, in this embodiment, the first fixed guide groove 1322 has a U-shaped cross-section, the second fixed guide groove 1324 has a V-shaped cross-section, and the third fixed guide groove 1326 has a V-shaped cross-section.

[0136] The circuit assembly 1330 of the fixing part 1300 has a first sensing element 1331 and a second sensing element 1332 for sensing the position of the first magnetic element 1410 and the second magnetic element 1420 of the driving assembly 1400.

[0137] The driving assembly 1400 includes a first magnetic element 1410, a second magnetic element 1420, two first coils 1430, a second coil 1440, and a magnetically conductive element 1450. In this embodiment, all components of the driving assembly 1400 are located on the same side of the first optical element 1010.

[0138] A first magnetic element 1410 is disposed on the first movable part 1100. A first coil 1430 is disposed on the second base 1320 of the fixed part 1300, corresponding to the first magnetic element 1410. The first magnetic element 1410 and the first coil 1430 drive the first movable part 1100 to move in the first direction D1.

[0139] The second magnetic element 1420 is disposed on the first movable part 1100. The second coil 1440 is disposed on the second base 1320 of the fixed part 1300, corresponding to the second magnetic element 1420. The second magnetic element 1420 and the second coil 1440 drive the second movable part 1200 and the first movable part 1100 to move in the second direction D2.

[0140] The magnetic element 1450 is disposed on the first base 1325, which indirectly attracts the first magnetic element 1410 and the second magnetic element 1420, so that the first base 1325 is close to the first magnetic element 1410 and the second magnetic element 1420.

[0141] Please refer to the following: Figures 8 to 10 The configuration of the first movable part 1100, the second movable part 1200, and the fixed part 1300 is displayed. Figure 9A For certain features of this utility model, a top view of the optical element drive mechanism 2, the first optical element 1010 and the second optical element 1020 is shown. For illustrative purposes, the housing 1310 is removed and the first base 1325 of the optical element drive mechanism 2 is shown as a dashed line.

[0142] Figure 9B For the purpose of illustration, a top view of the optical element drive mechanism 2 and the second optical element 1020 is shown, with the housing 1310, the first base 1325 and the main body plate 1210 removed.

[0143] Figure 9C For certain features of this utility model, a top view of the optical element drive mechanism 2, the first optical element 1010 and the second optical element 1020 is shown. For illustrative purposes, the housing 1310 and the main body plate 1210 are removed, and the first base 1325 is shown as a dashed line.

[0144] Figure 10 According to certain aspects of this utility model, the optical element driving mechanism 2, the first optical element 1010, and the second optical element 1020 are along... Figure 1A A cross-sectional view of line BB.

[0145] The electromagnetic driving force generated between the first magnetic element 1410 and the first coil 1430 causes the first magnetic element 1410 to move relative to the first coil 1430. Consequently, the first movable part 1100 moves relative to the fixed part 1300 in the first direction D1. The first movable part 1100 drives the movement of the first optical element 1010. Therefore, the electromagnetic driving force generated between the first magnetic element 1410 and the first coil 1430 can drive the first movable part 1100 to move the first optical element 1010 relative to the fixed part 1300.

[0146] The electromagnetic driving force generated between the second magnetic element 1420 and the second coil 1440 causes the second magnetic element 1420 to move relative to the second coil 1440. Consequently, the first movable part 1100 moves relative to the fixed part 1300 in the second direction D2. The first movable part 1100 drives the movement of the second movable part 1200 and the first optical element 1010. Therefore, the electromagnetic driving force generated between the second magnetic element 1420 and the second coil 1440 can drive the first movable part 1100 to move the second movable part 1200 and the first optical element 1010 relative to the fixed part 1300.

[0147] The movement of the first movable part 1100 and the second movable part 1200 will now be described in detail. The first movable part 1100 is movably connected to the second movable part 1200 and the fixed part 1300 via a first movable guide groove 1110, a second movable guide groove 1120, a third movable guide groove 1130, a connecting element 1220, and a first fixed guide groove 1322, a second fixed guide groove 1324, and a third fixed guide groove 1326. Each connecting element 1220 moves individually between a corresponding movable guide groove and a fixed guide groove.

[0148] The first movable guide groove 1110, the second movable guide groove 1120, and the third movable guide groove 1130 have elongated structures extending in the first direction D1, so that when the connecting element 1220 is located within the movable guide groove, it can move in the first direction D1. Therefore, when the first magnetic element 1410 drives the first movable part 1100 to move relative to the fixed part 1300 in the first direction D1, the first movable part 1100 moves along the first movable guide groove 1110, the second movable guide groove 1120, and the third movable guide groove 1130 via the connecting element 1220.

[0149] Since the second fixed guide groove 1324 and the third fixed guide groove 1326 have V-shaped cross sections extending in the second direction D2, the fixed connecting element 1220 has almost no room to move relative to the fixed part 1300 in the first direction D1. Therefore, the movement of the first movable part 1100 in the first direction D1 does not drive the movement of the second movable part 1200.

[0150] The first fixed guide groove 1322, the second fixed guide groove 1324, and the third fixed guide groove 1326 have elongated structures extending in the second direction D2, so that when the connecting element 1220 is located in the fixed guide groove, it can move in the second direction D2. Therefore, when the second magnetic element 1420 drives the first movable part 1100 to move relative to the fixed part 300 in the second direction D2, the first movable part 1100 drives the second movable part 1200 to move along the first fixed guide groove 1322, the second fixed guide groove 1324, and the third fixed guide groove 1326, through the connecting element 1220.

[0151] Since the first movable guide groove 1110 and the third movable guide groove 1130 have V-shaped cross sections, the fixed connecting element 1220 moves relative to the first movable part 1100 in the second direction D2. Therefore, the connecting element 1220 has almost no room to move relative to the first movable part 1100 in the second direction D2 (that is, the relative movement between the connecting element 1220 and the first movable part 1100 is almost zero). Thus, the movement of the first movable part 1100 in the second direction D2 not only drives the movement of the connecting element 1220 in the second direction D2, but also drives the movement of the second movable part 1200 in the second direction D2.

[0152] Thus, the first movable part 1100 moves in the first direction D1 via the first movable guide groove 1110, the second movable guide groove 1120 and the third movable guide groove 1130.

[0153] The first movable part 1100 and the second movable part 1200 move in the second direction D2 via the first fixed guide groove 1322, the second fixed guide groove 1324 and the third fixed guide groove 1326.

[0154] Please refer to the following. Figure 11 . Figure 11 The following is a bottom view of the optical element drive mechanism 2, the first optical element 1010 and the second optical element 1020 according to certain aspects of the present invention. For illustrative purposes, the second base 1320 of the optical element drive mechanism 2 is shown as a dashed line.

[0155] When observed along the incident optical axis O2 (i.e., along the path of the incident light), Figure 11 When viewed from a certain angle, the connecting element 1220 partially overlaps with the first magnetic element 1410. The distance d3 between the center C4 of the first optical element 1010 and the center C5 of one of the connecting elements 1220 is greater than the distance d4 between the center C4 of the first optical element 1010 and the center C6 of the second magnetic element 1420. Furthermore, distance d3 is also greater than the distance between the center C4 and the center of the first magnetic element 1410.

[0156] Furthermore, the first movable guide groove 1110, the third movable guide groove 1130, the first fixed guide groove 1322, and the third fixed guide groove 1326 are located on the same side of the first optical element 1010. The second fixed guide groove 1120 and the second movable guide groove 1324 are located on the other side of the first optical element 1010. The first magnetic element 1410 and the second magnetic element 1420 are located on the same side of the first optical element 1010 as the first movable guide groove 1110.

[0157] The configuration of the optical element driving mechanism 2 differs from that of the optical element driving mechanism 1, with its driving assembly 1400 positioned on the same side as the first optical element 1010. Furthermore, when observed along the incident optical axis O2 (i.e., along...), Figure 11 (When viewed from a certain angle), the magnetic element 1450 is located within region A1 formed by the guide groove and the connecting element. More specifically, the magnetic element 1450 is located within region A1 of the triangle formed by the lines connecting the centers of the three connecting elements 1220. Through the positioning of the magnetic element 1450, the attraction force generated between the magnetic element 1450 and the first magnetic element 1410 and the second magnetic element 1420 allows the second movable part 1200 to be more stably clamped between the first movable part 1100 and the first base 1325. The main body plate 1210 of the second movable part 1200 also has an opening 1213 corresponding to the magnetic element 1450. The magnetic element 1450 partially overlaps with the first magnetic element 1410 and the second magnetic element 1420 to attract the first base 1325 towards the first magnetic element 1410 and the second magnetic element 1420. This allows the first base 1325 to clamp the connecting element 1220 towards the first movable part 1100, reducing the structural thickness and stabilizing the internal structure.

[0158] With the above configuration, the first optical element can achieve translational compensation in two directions relative to the second optical element, thereby achieving image stabilization. Simultaneously, by employing a single-layer ball bearing guide design, the number of components and the overall module height can be effectively reduced, simplifying the structure.

[0159] In summary, the optical element driving mechanism of this utility model, through its integrated design, facilitates assembly. It not only effectively improves the accuracy and stability of optical element adjustment but also simplifies the assembly process, enhances structural reliability, and improves the miniaturization and process integration of the overall module. Consequently, the position of the optical element can be adjusted to provide more stable optical quality. It enables complex optical adjustment actions to be performed with fewer parts within a limited space, making it suitable for applications such as camera modules and optical instruments.

[0160] Although embodiments of the present invention have been shown and described with respect to one or more implementations, equivalents and modifications will arise in those skilled in the art upon reading and understanding this specification and the accompanying drawings. Furthermore, while specific features of the present invention may have been disclosed with respect to only one of several implementations, such features may be combined with one or more other features of other implementations, as may be desired and advantageous for any given or particular application.

[0161] While various embodiments of the present invention have been described above, it should be understood that they are presented by way of example only and not as limiting. Various changes may be made to the embodiments disclosed 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 foregoing embodiments. Rather, the scope of the present invention should be defined by the following claims and their equivalents.

[0162] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The singular forms “a” and “the” as used herein are intended to include the plural forms as well, unless the context clearly indicates otherwise. Furthermore, the terms “including”, “having”, “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 part for connecting a first optical element; A fixed part, wherein the first movable part is movable relative to the fixed part; as well as A drive component is used to drive the movement of the first moving part.

2. The optical element driving mechanism as described in claim 1, characterized in that, Also includes: A second movable part is movable relative to the fixed part, and the first movable part is movable relative to the second movable part; The fixed part is connected to a second optical element, and the first optical element can move relative to the second optical element.

3. The optical element driving mechanism as described in claim 2, characterized in that, The second activity department includes: A main body plate having a flat plate, a plurality of holes, and a reinforcing plate, wherein the plurality of holes are located on the flat plate, and the reinforcing plate extends perpendicular to the flat plate; and Multiple connecting elements are individually housed in corresponding holes of the multiple holes in the main body plate.

4. The optical element driving mechanism as described in claim 3, characterized in that, The fixing part includes: A housing having a notch near the reinforcing plate, the housing accommodating the first optical element, the first movable part, the second movable part, and the drive assembly; and A base having a protrusion near the reinforcing plate, the base being fixedly connected to the outer shell, wherein the recess and the protrusion have a matching shape.

5. The optical element driving mechanism as described in claim 3, characterized in that, The first movable part includes a first movable guide groove, a second movable guide groove and a third movable guide groove, and the plurality of the connecting elements individually move within the corresponding first movable guide groove, the second movable guide groove and the third movable guide groove; The fixing part includes a first fixing guide groove, a second fixing guide groove and a third fixing guide groove, and the plurality of the connecting elements individually move within the corresponding first fixing guide groove, the second fixing guide groove and the third fixing guide groove; The first movable guide groove, the second movable guide groove, and the third movable guide groove extend along a first direction; The first fixed guide groove, the second fixed guide groove, and the third fixed guide groove extend along a second direction; and The first direction and the second direction are not parallel.

6. The optical element driving mechanism as described in claim 5, characterized in that, The first movable guide channel has a V-shaped cross section; The second movable guide channel has a U-shaped cross-section; The first fixed guide groove has a U-shaped cross-section; and The second fixed guide groove has a V-shaped cross section.

7. The optical element driving mechanism as described in claim 5, characterized in that, The driver component includes: A first magnetic element is disposed in the first movable part; A first coil is disposed on the fixed part, corresponding to the first magnetic element, and the first magnetic element and the first coil drive the first movable part to move in the first direction; A second magnetic element is disposed in the first movable part; A second coil, disposed on the fixed portion, corresponding to the second magnetic element, the second magnetic element and the second coil driving the second movable portion and the first movable portion to move in the second direction; and A magnetically conductive element indirectly attracts the first magnetic element and the second magnetic element.

8. The optical element driving mechanism as described in claim 7, characterized in that, When observed along one incident optical axis of the first optical element: The plurality of connecting elements do not overlap with the first magnetic element; and The distance between the center of the first optical element and the center of one of the plurality of connecting elements is less than the distance between the center of the first optical element and the center of the first magnetic element.

9. The optical element driving mechanism as described in claim 7, characterized in that, When observed along one incident optical axis of the first optical element: The plurality of connecting elements partially overlap with the first magnetic element; and The distance between the center of the first optical element and the center of one of the plurality of connecting elements is greater than the distance between the center of the first optical element and the center of the first magnetic element.

10. The optical element driving mechanism as described in claim 9, characterized in that, When observed along the incident optical axis: The first movable guide groove, the third movable guide groove, the first fixed guide groove, and the third fixed guide groove are located on the same side of the first optical element; The second fixed guide groove and the second movable guide groove are located on the other side of the first optical element; and The first magnetic element and the second magnetic element are located on the same side of the first optical element as the first movable guide groove.

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