Optical element driving mechanism

Abstract

An optical element driving mechanism comprises a movable part, a fixed part and a driving assembly. The movable part is used for connecting the optical element and can move relative to the fixed part. The driving assembly drives the movable part to move along the first axis relative to the fixed part.

Description

Technical Field

[0001] The present disclosure relates to an optical element driving mechanism, and in particular to an optical element driving mechanism provided with a guiding assembly to enable a movable part to move relative to a fixed part. Background Art

[0002] With the advancement of technology, the application of electronic devices is becoming more and more common. In particular, electronic devices with camera or video recording functions, such as mobile phones and laptops, have gradually become an indispensable part of daily life. Currently, these electronic devices are usually equipped with multi-lens modules to achieve higher quality photography functions. However, in terms of manufacturing cost and functionality, the existing multi-lens modules still have room for improvement. Utility Model Content

[0003] The purpose of the present disclosure is to provide an optical element driving mechanism to solve at least one of the above problems.

[0004] Some embodiments of the present disclosure provide an optical element driving mechanism, comprising: a movable portion, a fixed portion, and a driving assembly. The movable portion is used to connect the optical element and can move relative to the fixed portion. The driving assembly is used to drive the movable portion to move relative to the fixed portion along a first axis.

[0005] In some embodiments, the optical element driving mechanism further includes a guide assembly, wherein the movable portion can move relative to the fixed portion along the first axis via the guide assembly, and the guide assembly includes a first guide assembly and a second guide assembly. The second guide assembly contacts the first guide assembly and can move relative to the first guide assembly. The first contact surface of the first guide assembly contacts the second contact surface of the second guide assembly. On the second axis, the maximum dimension of the first contact surface is different from the maximum dimension of the second contact surface, and the second axis is perpendicular to the first axis.

[0006] In some embodiments, on the second axis, the maximum dimension of the first contact surface is greater than the maximum dimension of the second contact surface. In some embodiments, the second guide assembly further comprises a first positioning portion, the first positioning portion having a first positioning surface. The first positioning surface faces the first guide assembly, and the angle between the first positioning surface and the second contact surface is between 15 degrees and 60 degrees. In some embodiments, when the movable portion is in the first position, the first guide assembly abuts against the first positioning portion, and the optical element shields the plurality of optical openings of the fixed portion.

[0007] In some embodiments, the second guide assembly further comprises a second positioning portion, the second positioning portion having a second positioning surface, wherein the second positioning surface faces the first guide assembly, and the second positioning surface is not parallel to and not perpendicular to the first positioning surface. In some embodiments, the second positioning surface is not parallel to and not perpendicular to the second contact surface. In some embodiments, the angle between the first positioning surface and the second contact surface is different from the angle between the second positioning surface and the second contact surface, and the angle between the first positioning surface and the second contact surface is greater than the angle between the second positioning surface and the second contact surface.

[0008] In some embodiments, the optical element driving mechanism further comprises a linkage assembly, wherein when the movable portion moves relative to the fixed portion, the optical element is driven to move via the linkage assembly, and the optical element can move relative to the movable portion. In some embodiments, the linkage assembly comprises a linkage element and an opening structure. The linkage element has a protruding structure. The opening structure corresponds to the linkage element. In some embodiments, the linkage element and the opening structure overlap on a second axis and a third axis respectively perpendicular to the first axis and perpendicular to each other.

[0009] In some embodiments, the first corresponding surface of the movable portion faces the second corresponding surface of the optical element. When the movable portion is in the middle position, the first corresponding surface does not contact the second corresponding surface. In some embodiments, when the movable portion is in the middle position, the first corresponding surface is not parallel to the second corresponding surface.

[0010] In some embodiments, the optical element driving mechanism further comprises a magnetic conductive sheet embedded in the fixed portion. When the movable portion is at the extreme position, the magnetic conductive sheet is separated from the movable portion. In some embodiments, when the movable portion is at the extreme position, the supporting portion of the movable portion contacts the fixed portion. In some embodiments, the supporting portion comprises a chamfer structure, and when the movable portion is at the extreme position, the chamfer structure contacts the fixed portion.

[0011] In some embodiments, the optical element driving mechanism further comprises a circuit assembly electrically connected to the driving assembly. The circuit assembly comprises a first contact and a second contact, and the first contact and the second contact are respectively located on opposite sides of the coil of the driving assembly. In some embodiments, the circuit assembly comprises a plurality of segments, which are embedded in the fixing portion, and the aforementioned segments extend in different directions respectively.

[0012] In some embodiments, the fixing portion includes an outer frame, the outer frame has a top surface and a side wall extending from the top surface, and the side wall is not parallel to the top surface. In some embodiments, the angle between the side wall and the top surface is less than 90 degrees.

[0013] The beneficial effect of the present disclosure is that the present disclosure provides an optical element driving mechanism provided with a guide assembly to enable the movable part to move relative to the fixed part. The provision of the guide assembly can reduce the risk of displacement of the movable part and the optical element in an undriven state, thereby reducing the risk of failure of the optical element driving mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The concepts of the disclosed embodiments are better understood according to the following detailed description and in conjunction with the accompanying drawings. It should be noted that, in accordance with standard practice in the industry, the various features in the drawings are not necessarily drawn to scale. In fact, the sizes of various features may be arbitrarily enlarged or reduced to make a clear description. Similar features are indicated by similar reference numerals throughout the specification and drawings.

[0015] Figure 1 A stereoscopic view of an optical element driving mechanism according to some embodiments of the present disclosure is shown.

[0016] Figure 2 An exploded view of an optical element driving mechanism according to some embodiments of the present disclosure is shown.

[0017] Figure 3 A stereoscopic diagram showing the internal structure of an optical element driving mechanism according to some embodiments of the present disclosure.

[0018] Figure 4A and Figure 4B A cross-sectional view of an optical element driving mechanism according to some embodiments of the present disclosure is shown.

[0019] Figure 5 A perspective view showing a movable portion and a base according to some embodiments of the present disclosure.

[0020] FIG. 6A to FIG. 6C A side view of a base and a movable portion according to some embodiments of the present disclosure is shown.

[0021] Figure 7 A side view of a base and a movable portion according to some embodiments of the present disclosure is shown.

[0022] Figure 8 A partial side view of a movable portion and an optical element according to some embodiments of the present disclosure is shown.

[0023] 9A to 9C A cross-sectional view of an optical element driving mechanism according to some embodiments of the present disclosure is shown.

[0024] Fig.10 A perspective view of a base according to some embodiments of the present disclosure is shown.

[0025] Fig.11 A perspective view of a base according to some embodiments of the present disclosure is shown.

[0026] Fig.12 A perspective view showing a movable portion and a base according to some embodiments of the present disclosure.

[0027] Fig.13 A cross-sectional view showing a movable portion and a base according to some embodiments of the present disclosure.

[0028] The reference numerals are as follows:

[0029] 100: Optical element driving mechanism

[0030] 110: Outer frame

[0031] 111: Top

[0032] 112: Side wall

[0033] 115: Positioning opening

[0034] 116: first optical opening

[0035] 117: Second optical opening

[0036] 120: Base

[0037] 124: Support structure

[0038] 130: Activities Department

[0039] 131: first corresponding surface (upper surface)

[0040] 132: Positioning column

[0041] 133: Supporting part

[0042] 134: Chamfer structure

[0043] 140:Optical Components

[0044] 141: second corresponding surface (lower surface)

[0045] 142: Positioning hole

[0046] 143:Light shielding part

[0047] 144: light-transmitting part

[0048] 150: Linkage components

[0049] 151: Linking element

[0050] 152: Open structure

[0051] 160:Drive components

[0052] 161: Magnetic components

[0053] 162: Driving coil

[0054] 163: Magnetic element

[0055] 163A: protrusion

[0056] 170: Boot Component

[0057] 171: First guide component

[0058] 171A, 171B: Guide element

[0059] 171C: First contact surface

[0060] 172: Second guide component

[0061] 172C: Second contact surface

[0062] 175: first positioning portion

[0063] 176: first positioning surface

[0064] 177: Second positioning portion

[0065] 178: Second positioning surface

[0066] 180:Circuit components

[0067] 181: First contact

[0068] 182: Second contact

[0069] 183:Solder

[0070] 185A, 185B, 185C: Section

[0071] 190: Magnetic sheet

[0072] A1: First axis

[0073] A2: Second axis

[0074] A3: The third axis

[0075] CC,DD:Line

[0076] F:Fixed part

[0077] O: Optical axis

[0078] θA,θB,θC: Angle DETAILED DESCRIPTION

[0079] The optical element driving mechanism of the embodiment of the present disclosure is described below. However, it can be easily understood that the embodiment of the present disclosure provides many suitable creative concepts and can be implemented in a wide variety of specific backgrounds. The specific embodiments disclosed are only used to illustrate the use of the present disclosure in a specific method, and are not used to limit the scope of the present disclosure.

[0080] In addition, relative terms such as "below" or "bottom" and "above" or "top" may be used in the embodiments to describe the relative relationship of one element of the drawings to another element. It is understood that if the device of the drawings is turned upside down, the element described on the "below" side will become the element on the "above" side. It should be noted that the first axis A1, the second axis A2, and the third axis A3 are defined in the present disclosure as being perpendicular to each other. These axial directions are only for the purpose of convenience of description and are not intended to limit the actual directions.

[0081] It should be understood that, although the terms "first", "second", etc. may be used herein to describe various elements, materials and / or parts, these elements, materials and / or parts should not be limited by these terms, and these terms are only used to distinguish different elements, materials and / or parts. Therefore, a first element, material and / or part discussed below may be referred to as a second element, material and / or part without departing from the teachings of some embodiments of the present disclosure, and unless otherwise defined, the first or second element, material and / or part described in the claims may be understood as any element, material and / or part in the specification in accordance with the claims.

[0082] Unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meanings as those commonly understood by those skilled in the art to which this disclosure belongs. It is understood that these terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning consistent with the background or context of the relevant technology and the present disclosure, and should not be interpreted in an idealized or overly formal manner unless specifically defined herein. In addition, the terms "substantially", "approximately" or "about" are also recorded in this article, which are intended to cover situations or scopes that are roughly consistent and completely consistent. It should be noted that, unless specifically defined, even if the above terms are not recorded in the narrative, they should still be interpreted with the same meaning as the above-mentioned approximate terms are recorded.

[0083] Figure 1 1 shows a stereoscopic view of an optical element driving mechanism 100 according to some embodiments of the present disclosure. It should be noted that the optical element driving mechanism 100 can be disposed in any suitable electronic device, such as a mobile phone, a laptop computer, etc., but the present disclosure is not limited thereto. In some embodiments, the present disclosure only shows a portion of the optical element driving mechanism 100, and any optical element driving mechanism that may include this portion is included in the scope of the present disclosure. Figure 1 As shown, the optical element driving mechanism 100 includes a fixed portion F, a movable portion 130 and a driving assembly 160 (see Figure 2 In some embodiments, the fixed portion F may include an outer frame 110 and a base 120. The movable portion 130 is used to connect the optical element 140, and the movable portion 130 can move relative to the fixed portion F.

[0084] In some embodiments, the outer frame 110 may include a top surface 111 and a side wall 112 extending from the top surface 111. For example, the normal direction of the top surface 111 may be substantially parallel to the third axis A3, and the side wall 112 may extend toward the base 120 and along the third axis A3. In some embodiments, the top surface 111 has a positioning opening 115 corresponding to the range of motion of the movable portion 130. In other words, the range of motion of the movable portion 130 will not exceed the positioning opening 115. In some embodiments, the top surface 111 has a first optical opening 116 and a second optical opening 117, which correspond to different optical modules (not shown). The driving assembly 160 can be used to drive the movable portion 130 (and the optical element 140 linked to the movable portion 130) to move along the first axis A1 relative to the fixed portion F. By driving the movable portion 130 and the optical element 140 to move along the first axis A1 relative to the fixed portion F by the driving assembly 160, the optical element 140 can move to the light shielding position and completely overlap with the first optical opening 116 and the second optical opening 117 (such as Figure 1 As shown). In this way, the optical element 140 can block light and prevent the light from entering the optical module (not shown) via the optical axis O (e.g., parallel to the third axis A3). In addition, the optical element 140 can also move to the light-transmitting position to expose the first optical opening 116 and the second optical opening 117 (i.e., the optical element 140 does not overlap with the first optical opening 116 and the second optical opening 117), so that light can enter the above-mentioned optical module via the optical axis O through the first optical opening 116 and the second optical opening 117.

[0085] Figure 2 FIG. 2 shows an exploded view of an optical element driving mechanism 100 according to some embodiments of the present disclosure. Figure 2As shown, the movable portion 130 and the optical element 140 are disposed in the space between the outer frame 110 and the base 120. Specifically, the movable portion 130 is disposed on the base 120, and the optical element 140 is connected to the movable portion 130 and is located between the outer frame 110 and the movable portion 130. In some embodiments, the optical element 140 includes a light shielding portion 143 and a light-transmitting portion 144. For example, the light shielding portion 143 may correspond to the first optical opening 116 and the second optical opening 117. Specifically, the optical element 140 may be moved to a first position (e.g., a light shielding position) so that the light shielding portion 143 shields the first optical opening 116 and the second optical opening 117. In some embodiments, on a horizontal plane (whose normal direction is, for example, parallel to the third axis A3), the size of the light shielding portion 143 may be larger than the size of the first optical opening 116 and / or the second optical opening 117. In some embodiments, the shape of the light shielding portion 143 may be different from the shape of the first optical opening 116 and / or the second optical opening 117. However, the present disclosure is not limited thereto. It should be understood that any light shielding portion 143 that can shield the first optical opening 116 and the second optical opening 117 is within the scope of the present disclosure.

[0086] In addition, the light-transmitting portion 144 can be an opening structure, corresponding to the first optical opening 116 and the second optical opening 117. In some embodiments, the light-transmitting portion 144 can be located between the light-shielding portion 143. In some embodiments, on a horizontal plane (whose normal direction is, for example, parallel to the third axis A3), the size of the light-transmitting portion 144 can be larger than the size of the first optical opening 116 and / or the second optical opening 117. In some embodiments, the shape of the light-transmitting portion 144 can be different from the shape of the first optical opening 116 and / or the second optical opening 117. However, the present disclosure is not limited to this. In this way, a single optical element 140 can be used to simultaneously open or close the first optical opening 116 and the second optical opening 117, thereby reducing the manufacturing cost of the optical element driving mechanism 100. The following will refer to Figure 3 , Figure 4A and Figure 4B The detailed structure and operation of the movable portion 130 and the optical element 140 are further described.

[0087] In some embodiments, the optical element driving mechanism 100 includes a linkage assembly 150. The linkage assembly 150 includes a linkage element 151 and an opening structure 152. For example, the linkage element 151 is located on the movable portion 130 and has a protruding structure, which protrudes toward the optical element 140. The opening structure 152 is located in the optical element 140 and corresponds to the linkage element 151. In addition, the optical element driving mechanism 100 includes a driving assembly 160. The driving assembly 160 includes a magnetic element 161, a coil 162, and a magnetic conductive element 163. In this embodiment, the magnetic element 161 is disposed in the movable portion 130, and the coil 162 surrounds the magnetic conductive element 163 and is disposed in the base 120. However, the present disclosure is not limited thereto. In some other embodiments, the magnetic element 161 may be disposed in the base 120, and the coil 162 and the magnetic conductive element 163 are disposed in the movable portion 130. In some embodiments, the linkage element 151 may correspond to the magnetic element 161. For example, the linkage element 151 may be located above the magnetic element 161 , and in a vertical direction (eg, parallel to the third axis A3 ), the linkage element 151 may overlap with the magnetic element 161 .

[0088] Figure 3 A perspective view showing the internal structure of the optical element driving mechanism 100 according to some embodiments of the present disclosure. Figure 3 As shown, the linkage element 151 is inserted into the opening structure 152 of the optical element 140. In addition, the movable portion 130 is provided with positioning posts 132, which are located on opposite sides of the linkage element 151. The optical element 140 is provided with positioning holes 142 corresponding to the positioning posts 132. Specifically, when the linkage element 151 is inserted into the opening structure 152 (at this time, the linkage element 151 and the opening structure 152 overlap on the second axis A2 and the third axis A3), the positioning posts 132 will be inserted into the corresponding positioning holes 142. In this way, the movable portion 130 can be stably connected to the optical element 140. In some embodiments, an adhesive (not shown) can be provided between the movable portion 130 and the optical element 140 to join the movable portion 130 and the optical element 140. However, the present disclosure is not limited thereto.

[0089] Figure 4A and Figure 4B 1 shows a cross-sectional view of an optical element driving mechanism 100 according to some embodiments of the present disclosure. For example, Figure 4A and Figure 4B Can be along Figure 1 The line CC shown is drawn, but the present disclosure is not limited to this. Figure 4AAs shown, in some embodiments, the magnetic conductive element 163 is provided with a protrusion 163A, which protrudes toward the bottom surface of the base 120 (for example, along the third axis A3). The coil 162 can surround the magnetic conductive element 163 and contact the protrusion 163A. In this way, it is convenient to arrange the coil 162 around the magnetic conductive element 163. In some embodiments, the position of the protrusion 163A can correspond to the range of motion of the movable part 130. Although this embodiment shows the protrusion 163A protruding downward, the present disclosure is not limited to this. In some other embodiments, the protrusion 163A can protrude upward (for example, toward the movable part 130). In some embodiments, the magnetic element 161 disposed on the movable part 130 can form a magnetic attraction with the magnetic conductive element 163, so that the movable part 130 can be supported on the base 120 and maintained at a desired position. As shown in FIG. Figure 4A As shown, the optical element 140 moves to the first position (eg, the light shielding position), and the light shielding portion 143 of the optical element 140 covers the first optical opening 116 and the second optical opening 117 , so that light cannot pass through the first optical opening 116 and the second optical opening 117 .

[0090] like Figure 4B As shown, when it is necessary to move the optical element 140 to allow light to pass through the first optical opening 116 and the second optical opening 117, an electrical signal can be transmitted to the coil 162. At this time, the coil 162 and the magnetic conductive element 163 will generate a magnetic thrust corresponding to the magnetic element 161. In this way, the coil 162 and the magnetic conductive element 163 will generate a force substantially parallel to the first axis A1 to drive the movable portion 130 to move along the first axis A1. In this embodiment, the light-transmitting portion 144 of the optical element 140 will be located below the second optical opening 117, and the first optical opening 116 and the optical element 140 are staggered (i.e., they do not overlap on the third axis A3). At this time, the optical element 140 moves to the second position (e.g., the light-transmitting position), and light can pass through the first optical opening 116 and the second optical opening 117. In summary, the driving assembly 160 (including the magnetic element 161 , the coil 162 and the magnetic conductive element 163 ) can be used to drive the movable portion 130 to move along the first axis A1 relative to the fixed portion F (such as the outer frame 110 , the base 120 ) to control the optical element 140 to cover or reveal the first optical opening 116 and the second optical opening 117 .

[0091] Figure 5 1 shows a three-dimensional view of the movable portion 130 and the base 120 according to some embodiments of the present disclosure. In some embodiments, the base 120 may be provided with a supporting structure 124, which is located on the opposite side of the base 120 and is used for the optical element 140 to support. This can help keep the optical element 140 level in the first position (e.g., the light-shielding position) and the second position (e.g., the light-transmitting position). Figure 5As shown, the optical element driving mechanism 100 includes a guide assembly 170, and the movable part 130 can move relative to the fixed part F (such as the base 120) along the first axis A1 via the guide assembly 170. For example, the guide assembly 170 may include a first guide assembly 171 and a second guide assembly 172. In some embodiments, the first guide assembly 171 may be disposed on the movable part 130, and the second guide assembly 172 may be disposed on the base 120, but the present disclosure is not limited thereto. In some embodiments, the second guide assembly 172 contacts the first guide assembly 171, and the first guide assembly 171 can move relative to the second guide assembly 172. In some embodiments, the first contact surface 171C of the first guide assembly 171 contacts the second contact surface 172C of the second guide assembly 172. On the second axis A2, the maximum size (such as width) of the first contact surface 171C is different from the maximum size (such as width) of the second contact surface 172C. For example, on the second axis A2, the maximum size of the first contact surface 171C is greater than the maximum size of the second contact surface 172C. In this way, the risk of the second guide component 172 interfering with the movement of the movable portion 130 (and the magnetic element 161) can be reduced. However, the present disclosure is not limited thereto. In some embodiments, a chamfer structure can be formed on the edges of the first guide component 171 and the second guide component 172 to reduce the risk of dust generated by the relative movement of the movable portion 130 to the fixed portion F.

[0092] In some embodiments, the second guide assembly 172 further includes a first positioning portion 175 and a second positioning portion 177, and the first positioning portion 175 and the second positioning portion 177 may protrude from the second contact surface 172C. In some embodiments, the height of the first positioning portion 175 and the second positioning portion 177 protruding from the second contact surface 172C may be between about 0.06 mm and about 0.10 mm, but the present disclosure is not limited thereto. The first positioning portion 175 has a first positioning surface 176, which faces the first guide assembly 171 and is inclined relative to the second contact surface 172C. In some embodiments, the angle between the first positioning surface 176 and the second contact surface 172C may be between about 15 degrees and about 60 degrees (e.g., about 30 degrees, about 45 degrees, etc.), but the present disclosure is not limited thereto. When the movable portion 130 is located at the first position, the first guide assembly 171 abuts against the first positioning portion 175. As a result, when the movable portion 130 and the optical element 140 are not driven, the first positioning portion 175 can help keep the movable portion 130 and the optical element 140 positioned, thereby reducing the risk of the optical element driving mechanism 100 malfunctioning due to external force impact.

[0093] In addition, the second positioning portion 177 has a second positioning surface 178. The second positioning surface 178 faces the first guide component 171 and is inclined relative to the second contact surface 172C. In some embodiments, the second positioning surface 178 is not parallel to and is not perpendicular to the second contact surface 172C. The second positioning surface 178 may be adjacent to the first positioning surface 176. Specifically, the second positioning surface 178 and the first positioning surface 176 may intersect at an edge. In some embodiments, the second positioning surface 178 is not parallel to and is not perpendicular to the first positioning surface 176. For example, the angle between the first positioning surface 176 and the second contact surface 172C is different from the angle between the second positioning surface 178 and the second contact surface 172C. However, the present disclosure is not limited to this.

[0094] FIG. 6A to FIG. 6C 1 shows a side view of the base 120 and the movable portion 130 according to some embodiments of the present disclosure. Fig. 6A As shown, when the movable portion 130 is located at the first position (e.g., the light shielding position), the guide element 171A of the first guide assembly 171 can abut against the first positioning surface 176 to maintain the movable portion 130 in position, thereby reducing the risk of the optical element 140 shifting and causing the optical element driving mechanism 100 to fail. At this time, the guide element 171A and the guide element 171B of the first guide assembly 171 are both located on the second contact surface 172C and in contact with the second contact surface 172C.

[0095] Then, if Figure 6B As shown, when the driving assembly 160 starts to drive the movable part 130 to move along the first axis A1, the guide element 171A originally abutting against the first positioning surface 176 will first move along the first positioning surface 176 to the second positioning surface 178, and the guide element 171B will move along the opposite second positioning surface 178 at the same time. At this time, the movable part 130 can be located in the middle position. Since the second positioning surface 178 is inclined relative to the second contact surface 172C, it is beneficial for the movable part 130 to move via the guide elements 171A and 171B of the first guide assembly 171, thereby reducing the resistance to the movement of the movable part 130.

[0096] like Figure 6C As shown, when the movable portion 130 is located at the second position (e.g., the light-transmitting position), the guide element 171B of the first guide assembly 171 can pass through the second positioning surface 178 and the first positioning surface 176 and return to the second contact surface 172C to abut against the first positioning surface 176, so as to maintain the position of the movable portion 130, thereby reducing the risk of the optical element 140 shifting and causing the optical element driving mechanism 100 to fail. Similarly, the guide elements 171A and 171B of the first guide assembly 171 are both located on the second contact surface 172C and in contact with the second contact surface 172C.

[0097] Figure 7 1 shows a side view of the base 120 and the movable part 130 according to some embodiments of the present disclosure. It should be noted that the base 120 and the movable part 130 shown in this embodiment may include FIG. 6A to FIG. 6C The base 120 and the movable portion 130 shown in the figure have the same or similar structures or parts. These same or similar structures or parts will be represented by the same or similar reference numerals. Figure 7 As shown, the second guide assembly 172 includes a first positioning portion 175 and a second positioning portion 177, and the first positioning portion 175 and the second positioning portion 177 may protrude from the second contact surface 172C. The first positioning portion 175 has a first positioning surface 176, and the first positioning surface 176 faces the first guide assembly 171 and is inclined relative to the second contact surface 172C. In some embodiments, the angle between the first positioning surface 176 and the second contact surface 172C may be between about 15 degrees and about 60 degrees (e.g., about 30 degrees, about 45 degrees, etc.), but the present disclosure is not limited thereto.

[0098] When the movable portion 130 is located at the first position (for example, the light shielding position), the first guide component 171 abuts against the first positioning portion 175. In this way, when the movable portion 130 and the optical element 140 are not driven, the first positioning portion 175 can help keep the movable portion 130 and the optical element 140 in position, thereby reducing the risk of failure of the optical element driving mechanism 100 due to external force impact. In the present embodiment, the second positioning portion 177 has a second positioning surface 178. The second positioning surface 178 may be adjacent to the first positioning surface 176 and substantially parallel to the second contact surface 172C. Specifically, the second positioning surface 178 and the first positioning surface 176 may intersect at an edge. In some embodiments, the second positioning surface 178 is not parallel and not perpendicular to the first positioning surface 176. However, the present disclosure is not limited to this.

[0099] Figure 8 FIG. 1 shows a partial side view of the movable portion 130 and the optical element 140 according to some embodiments of the present disclosure. Figure 8As shown, the movable portion 130 has a first corresponding surface 131 facing a second corresponding surface 141 of the optical element 140. For example, the first corresponding surface 131 may be the upper surface of the movable portion 130, and the second corresponding surface 141 may be the lower surface of the optical element 140, but the present disclosure is not limited thereto. In this embodiment, the optical element 140 may move relative to the movable portion 130, that is, no adhesive is provided between the optical element 140 and the movable portion 130. The linkage element 151 and the positioning post 132 may pass through the optical element 140 in a direction parallel to the third axis A3, and the range of motion of the optical element 140 will not exceed the linkage element 151 and the positioning post 132. In other words, the optical element 140 will remain connected to the movable portion 130 via the linkage assembly 150, and the linkage element 151 and the positioning post 132 will not be separated from the movable portion 130 (regardless of the situation). For example, the range of motion of the optical element 140 in the vertical direction (parallel to the third axis A3) may be between about 0.06 mm and about 0.10 mm.

[0100] In some embodiments, when the movable portion 130 is in the middle position (eg Figure 6B ), the first corresponding surface 131 does not contact the second corresponding surface 141, and the first corresponding surface 131 is not parallel to the second corresponding surface 141. In some embodiments, the gap between the optical element 140 and the movable portion 130 may be between about 0.06 mm and about 0.10 mm (e.g., about 0.08 mm). Specifically, in this embodiment, the optical element 140 may be supported on the supporting structure 124 (e.g., Figure 5 As shown in FIG. 1 , the optical element 140 can be kept substantially horizontal during the movement of the movable portion 130. Therefore, the optical element 140 can move relative to the movable portion 130 and a gap can be maintained between the optical element 140 and the movable portion 130. In this way, when the movable portion 130 moves relative to the fixed portion F along the first axis A1, the optical element 140 can move relative to the movable portion 130, thereby reducing the impact or deviation of the movable portion 130 on the optical element 140, thereby reducing the risk of the optical element 140 being damaged by collision with other elements.

[0101] 9A to 9C 1 shows a cross-sectional view of an optical element driving mechanism 100 according to some embodiments of the present disclosure. For example, 9A to 9C Can be along Figure 1 The line DD shown is drawn, but the present disclosure is not limited thereto. Fig. 9AAs shown, in this embodiment, the top surface 111 of the outer frame 110 and the side wall 112 extending from the top surface 111 cover the movable part 130 and the optical element 140 located inside the optical element driving mechanism 100. In this embodiment, the angle θA formed between the top surface 111 and the side wall 112 can be approximately 90 degrees. In other words, the top surface 111 and the side wall 112 can be approximately vertical. In this way, the side wall 112 can be joined to the base 120, thereby protecting the movable part 130 and the optical element 140 inside the optical element driving mechanism 100.

[0102] like Fig. 9B As shown, in the present embodiment, the angle θB formed between the top surface 111 and the side wall 112 may be greater than 90 degrees. In other words, an obtuse angle may be formed between the top surface 111 and the side wall 112. In some embodiments, an adhesive 119 may be provided between the side wall 112 and the base 120 to join the outer frame 110 and the base 120. However, the present disclosure is not limited to this. Any material or structure that can join the outer frame 110 and the base 120 is covered within the scope of the present disclosure. Through the above-mentioned features, the difficulty of assembling the outer frame 110 and the base 120 can be reduced, thereby improving the manufacturing yield of the optical element driving mechanism 100.

[0103] like Fig. 9C As shown, in the present embodiment, the top surface 111 may extend beyond the projection area of ​​the base 120 on the horizontal plane (e.g., perpendicular to the third axis A3), and the angle θC formed between the top surface 111 and the side wall 112 may be less than 90 degrees. In other words, an acute angle may be formed between the top surface 111 and the side wall 112. In some embodiments, an adhesive 119 may be provided between the side wall 112 and the base 120 to join the outer frame 110 and the base 120. However, the present disclosure is not limited to this. In some embodiments, the adhesive 119 may be omitted. In addition, any material or structure that can join the outer frame 110 and the base 120 is covered within the scope of the present disclosure. Through the above-mentioned features, the joining strength between the outer frame 110 and the base 120 can be improved, thereby enhancing the structural strength of the optical element driving mechanism 100.

[0104] Fig.10 and a bottom view showing the base 120 according to some embodiments of the present disclosure. Fig.11 1 shows a three-dimensional view of the base 120 according to some embodiments of the present disclosure. In some embodiments, the coil 162 and the magnetic conductive element 163 can be installed from the bottom of the base 120, that is, the coil 162 and the magnetic conductive element 163 are at least partially exposed on the bottom surface of the base 120. Fig.10 and Fig.11As shown, the optical element driving mechanism 100 includes a circuit assembly 180 to electrically connect the coil 162 to an external power source (not shown). In some embodiments, the circuit assembly 180 includes a first contact 181 and a second contact 182, which are located on opposite sides of the coil 162. For example, solder 183 can be applied to the second contact 182 to electrically connect the coil 162 to the second contact 182. However, the present disclosure is not limited thereto.

[0105] In addition, the circuit component 180 may include a plurality of segments 185A, 185B, and 185C, which are embedded in the base 120 and are used to connect the first contact 181 and the second contact 182. Specifically, the aforementioned segments 185A, 185B, and 185C may be connected to each other so that the electrical signal can be transmitted between the first contact 181 and the second contact 182. In some embodiments, the segments 185A, 185B, and 185C of the circuit component 180 may surround the magnetic conductive element 163 and extend in different directions. In some embodiments, in two axial directions parallel to the second axis A2 and the third axis A3, the circuit component 180 (such as the segments 185A, 185B, and 185C) at least partially overlaps with the magnetic conductive element 163. By embedding the segments 185A, 185B, and 185C in the base 120, the structural strength of the optical element driving mechanism 100 can be improved, and the size of the overall structure can be reduced to achieve a miniaturized effect. It should be understood that the configurations of the segments 185A, 185B, and 185C shown in the present disclosure are merely examples and are not intended to limit the scope of the present disclosure.

[0106] Fig.12 A perspective view of the movable portion 130 and the base 120 according to some embodiments of the present disclosure is shown.

[0107] Fig.13 1 shows a cross-sectional view of the movable portion 130 and the base 120 according to some embodiments of the present disclosure. For example, Fig.13 Can be along Fig.12 The line EE shown is drawn, but the present disclosure is not limited to this. Fig.12 As shown, a magnetic conductive sheet 190 is respectively embedded on two opposite sides of the base 120. In other words, the magnetic conductive sheet 190 is not exposed on the surface of the base 120. However, the present disclosure is not limited to this. In this way, when the movable portion 130 is located in the first position (for example, a light-shielding position) or the second position (for example, a light-transmitting position), the magnetic conductive sheet 190 can generate a magnetic attraction force with the magnetic element 161 in the movable portion 130. This can reduce the risk of displacement of the movable portion 130 and the optical element 140 in the undriven state, thereby reducing the failure probability of the optical element driving mechanism 100.

[0108] like Fig.13As shown, the movable part 130 includes a supporting part 133 for supporting the base 120 when the movable part 130 moves to the extreme position (such as the first position or the second position mentioned above). In some embodiments, the supporting part 133 includes a chamfer structure 134 corresponding to the base 120. When the movable part 130 moves to the extreme position, the chamfer structure 134 will face the base 120. In this way, the dust or foreign matter generated when the movable part 130 collides with the base 120 can be reduced. It should be understood that since the magnetic conductive sheet 190 is buried in the base 120, when the movable part 130 moves to the above-mentioned extreme position, the magnetic conductive sheet 190 will not contact the movable part 130, thereby reducing the risk of damage to the magnetic conductive sheet 190. By setting the magnetic conductive sheet 190, the structural strength of the base 120 can be increased and the service life of the optical element driving mechanism 100 can be extended.

[0109] In summary, the present disclosure provides an optical element driving mechanism provided with a guide assembly to enable a movable part to move relative to a fixed part. By providing the guide assembly, the risk of displacement of the movable part and the optical element in an undriven state can be reduced, thereby reducing the risk of failure of the optical element driving mechanism. In addition, a chamfer structure can be formed on the edges of the guide assembly and the movable part to reduce the risk of dust generated by the movement of the movable part relative to the fixed part. In addition, the optical element can move relative to the movable part, thereby reducing the impact or displacement of the movable part on the optical element, thereby reducing the risk of damage to the optical element due to collision with other elements.

[0110] However, the embodiments and advantages of the present disclosure have been disclosed as above, but it should be understood that those skilled in the art can make changes, substitutions and modifications without departing from the spirit and scope of the present disclosure. In addition, the scope of protection of the present disclosure is not limited to the processes, machines, manufacturing, material compositions, devices, methods and steps in the specific embodiments described in the specification. Any technician in the relevant technical field can understand the current or future developed processes, machines, manufacturing, material compositions, devices, methods and steps from the disclosure of the present disclosure. As long as they can implement roughly the same functions or obtain roughly the same results in the embodiments described herein, they can be used according to the present disclosure. Therefore, the scope of protection of the present disclosure includes the above-mentioned processes, machines, manufacturing, material compositions, devices, methods and steps, and the features between the embodiments can be arbitrarily mixed and matched as long as they do not violate the creative spirit or conflict with each other. In addition, each claim constitutes an individual embodiment, and the scope of protection of the present disclosure also includes the combination of each claim and embodiment.

Claims

1. An optical element driving mechanism, characterized in that: include: A movable portion, used to connect an optical element; a fixed portion, the movable portion being movable relative to the fixed portion; a driving assembly for driving the movable portion to move relative to the fixed portion along a first axis; as well as a guide assembly, wherein the movable portion can move relative to the fixed portion along the first axis via the guide assembly, and the guide assembly comprises: a first guide assembly; as well as a second guide component, contacting the first guide component and movable relative to the first guide component, wherein a first contact surface of the first guide component contacts a second contact surface of the second guide component, On a second axis, a maximum dimension of the first contact surface is different from a maximum dimension of the second contact surface, and the second axis is perpendicular to the first axis.

2. The optical element driving mechanism according to claim 1, wherein: On the second axis, the maximum dimension of the first contact surface is greater than the maximum dimension of the second contact surface.

3. The optical element driving mechanism according to claim 1, wherein: The second guide assembly also includes: A first positioning portion has a first positioning surface, wherein the first positioning surface faces the first guide component, and an angle between the first positioning surface and the second contact surface is between 15 degrees and 60 degrees.

4. The optical element driving mechanism according to claim 3, wherein: When the movable portion is located at a first position, the first guiding component abuts against the first positioning portion, and the optical element covers a plurality of optical openings of the fixed portion.

5. The optical element driving mechanism according to claim 4, characterized in that: The second guide component also includes a second positioning portion having a second positioning surface, wherein the second positioning surface faces the first guide component, and the second positioning surface is not parallel to and not perpendicular to the first positioning surface.

6. The optical element driving mechanism according to claim 5, characterized in that: The second positioning surface is not parallel to or perpendicular to the second contact surface.

7. The optical element driving mechanism according to claim 5, characterized in that: The included angle between the first positioning surface and the second contact surface is different from an included angle between the second positioning surface and the second contact surface, and the included angle between the first positioning surface and the second contact surface is greater than the included angle between the second positioning surface and the second contact surface.

8. The optical element driving mechanism according to claim 1, wherein: The invention also comprises a linkage component, wherein when the movable part moves relative to the fixed part, the optical element is driven to move via the linkage component, and the optical element can move relative to the movable part.

9. The optical element driving mechanism according to claim 8, wherein: The linkage assembly includes: a linkage element having a protruding structure; and An opening structure corresponds to the linkage element.

10. The optical element driving mechanism according to claim 9, wherein: The linkage element and the opening structure overlap on a second axis and a third axis which are respectively perpendicular to the first axis and perpendicular to each other.

11. The optical element driving mechanism according to claim 1, wherein: A first corresponding surface of the movable portion faces a second corresponding surface of the optical element. When the movable portion is located at a middle position, the first corresponding surface does not contact the second corresponding surface.

12. The optical element driving mechanism according to claim 11, wherein: When the movable portion is located at the middle position, the first corresponding surface is not parallel to the second corresponding surface.

13. The optical element driving mechanism according to claim 1, wherein: It also includes a magnetic conductive sheet buried in the fixed part, wherein when the movable part is located at an extreme position, the magnetic conductive sheet is separated from the movable part.

14. The optical element driving mechanism according to claim 13, wherein: When the movable portion is located at the limit position, a supporting portion of the movable portion contacts the fixed portion.

15. The optical element driving mechanism according to claim 14, wherein: The supporting portion includes a chamfer structure, and when the movable portion is located at the limit position, the chamfer structure contacts the fixed portion.

16. The optical element driving mechanism according to claim 1, wherein: The invention also comprises a circuit component electrically connected to the driving component, wherein the circuit component comprises a first contact and a second contact, and the first contact and the second contact are respectively located at opposite sides of a coil of the driving component.

17. The optical element driving mechanism according to claim 16, wherein: The circuit component comprises a plurality of segments which are buried in the fixing portion, and the plurality of segments extend in different directions respectively.

18. The optical element driving mechanism according to claim 1, wherein: The fixing portion includes an outer frame having a top surface and a side wall extending from the top surface, and the side wall is not parallel to the top surface.

19. The optical element driving mechanism according to claim 18, wherein: An included angle between the side wall and the top surface is less than 90 degrees.

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