Optical element driving mechanism
By designing an optical element drive mechanism and utilizing the electromagnetic driving force of magnetic elements and coils to adjust the blade position of the aperture assembly, the problem of increased thickness of electronic devices when integrating long-focal-length optical elements is solved. This achieves the lightweight and stable optical element drive mechanism, simplifies the circuit design, and adapts to different photographic needs.
Patent Information
- Application Number
- CN202422346161.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Priority Date
- 2023-09-25
- Filing Date
- 2024-09-25
- Publication Date
- 2025-10-03
- Estimated Expiration
- 2034-09-25
AI Technical Summary
When integrating long-focal-length optical elements into existing electronic devices, the device thickness increases, affecting the device's lightweight and stability.
An optical element driving mechanism is designed, including a movable part, a fixed part, a driving assembly, an aperture assembly, and a guide assembly. The movable part is driven by the electromagnetic driving force of a magnetic element and a coil, and the position of the blades of the aperture assembly is adjusted to control the amount of incident light. The control circuit is simplified through an independent circuit design.
It achieves the lightweight and stable driving mechanism of the optical element, simplifies the circuit design, adapts to different photographic needs, and provides more stable optical quality.
Smart Images

Figure CN223413536U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to an optical element driving mechanism, in particular to an optical element driving mechanism with a movable part and a plurality of connecting elements. Background Art
[0002] With the advancement of technology, many electronic devices (such as computers and tablets) now have camera or video recording capabilities. These devices are becoming increasingly common, and while they are developing more stable and superior optical quality, they are also moving towards more convenient and lightweight designs, providing users with more options.
[0003] However, when optical components with long focal lengths (such as lenses) are installed in these electronic devices, the thickness of the electronic devices increases, hindering their lightweight and stable design. Therefore, designing optical systems that can make electronic devices lightweight, thin, and stable has become an important issue. Utility Model Content
[0004] The terms "embodiment" and similar terms (e.g., implementation, configuration, features, examples, and options) are intended to broadly refer to all of the subject matter of the present invention and the claims that follow. Several statements containing these terms should be understood as not limiting the subject matter described herein or limiting the meaning or scope of the claims that follow. The embodiments of the present invention covered herein are defined by the following claims, not by this summary. This summary is a high-level overview of the various features of the present invention and introduces some of the concepts that are further described in the following implementation paragraphs. This summary is not intended to identify the key or essential features of the claimed subject matter, nor is it intended to be used independently to determine the scope of the claimed subject matter. This subject matter should be understood by reference to appropriate portions of the complete specification of the present invention, any or all of the drawings, and each claim.
[0005] The purpose of the present invention is to provide an optical element driving mechanism to solve at least one of the above problems.
[0006] According to certain features of the present disclosure, an optical element driving mechanism is provided. The optical element driving mechanism includes a movable portion, a fixed portion, and a driving assembly. The movable portion is connected to an optical element. The movable portion is movable relative to the fixed portion. The driving assembly is used to drive the movable portion to move.
[0007] According to certain features of the present disclosure, the optical element drive mechanism further includes an aperture assembly having a plurality of blades. The plurality of blades form an opening through which incident light enters the optical element. The fixing portion includes an outer cover and a buffer element. The outer cover at least partially covers the aperture assembly and the optical element. The buffer element is disposed between the outer cover and the aperture assembly.
[0008] According to one embodiment of the present disclosure, it further includes: an aperture assembly having a plurality of blades, wherein the plurality of blades form an opening, and an incident light enters the optical element through the opening; wherein the fixing portion includes: an outer cover at least partially covering the aperture assembly and the optical element; and a buffer element disposed between the outer cover and the aperture assembly.
[0009] According to one embodiment of the present disclosure, it further includes: a circuit component, including: a plurality of external elements; and a plurality of elastic elements, wherein the plurality of external elements are electrically connected to the plurality of elastic elements, and wherein the plurality of elastic elements are electrically connected to the driving component.
[0010] According to one embodiment of the present disclosure, the fixing portion further includes: a frame; a base; and an outer frame, wherein the frame is fixedly connected to the base, the base is connected to the outer frame via a plurality of the elastic elements; and the plurality of the external elements are located on a first side of the outer frame.
[0011] According to one embodiment of the present disclosure, the driving assembly includes: a magnetic element disposed on the movable portion; and a coil disposed on a protruding structure of the base, adjacent to the first side, wherein the protruding structure protrudes toward the first side.
[0012] According to one embodiment of the present disclosure, the movable portion includes a stabilizing element, which is fixedly disposed on an opposite side of the magnetic element.
[0013] According to one embodiment of the present disclosure, a guide assembly is further included, wherein: the guide assembly includes a plurality of guide elements, which are arranged between the movable part and the frame, adjacent to the first side; the movable part is connected to the frame via the plurality of guide elements.
[0014] According to one embodiment of the present disclosure, the distance between the plurality of guiding elements and an optical axis of the incident light is greater than the distance between the magnetic element and the optical axis.
[0015] According to one embodiment of the present disclosure, the base includes: a first part; and a second part fixedly connected to the first part, wherein a thickness of the second part is greater than a thickness of the first part, and a hardness of the second part is greater than a hardness of the first part.
[0016] According to one embodiment of the present disclosure, the base further includes a plurality of connecting elements, and the plurality of elastic elements are electrically connected to the coil via the plurality of connecting elements.
[0017] According to one embodiment of the present disclosure, the external element further includes a plurality of electrical connection portions extending along the direction of the incident light, the distance between the plurality of electrical connection portions and an optical axis of the incident light is greater than the distance between the outer frame and the optical axis, and when viewed along the direction of the incident light, the plurality of electrical connection portions at least partially overlap with the outer frame.
[0018] According to one embodiment of the present disclosure, the magnetic element includes a first surface and a second surface, the first surface and the second surface face opposite directions, the second surface faces the coil, the first surface and the second surface are both curved surfaces, and the curvature radius of the first surface is different from the curvature radius of the second surface, and the curvature radius of the first surface is smaller than the curvature radius of the second surface.
[0019] The foregoing summary is not intended to represent every embodiment or feature of the present invention. Rather, the foregoing summary merely provides examples of some of the novel features and characteristics set forth herein. The above features and advantages, as well as other features and advantages of the present invention, will become apparent from the following detailed description of representative embodiments and modes for practicing the present invention, when taken in conjunction with the accompanying drawings and the appended claims. Additional features of the present invention will be apparent to those skilled in the art from the detailed description of various embodiments provided below with reference to the accompanying drawings and the accompanying symbolic simplified illustrations. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] The present invention and its advantages will be better understood from the following description of exemplary embodiments in conjunction with the accompanying drawings, which illustrate exemplary embodiments only and are therefore not to be considered as limiting the various embodiments or claims.
[0021] Figure 1 FIG. 1 is a perspective view of an optical element driving mechanism according to certain features of the present disclosure.
[0022] Figure 2 According to certain features of the present disclosure, the optical element driving mechanism and the optical element drive mechanism are Figure 1 Cross-section view of line AA.
[0023] Figure 3 A perspective view of an optical element driving mechanism and an optical element according to certain features of the present disclosure, with outer covers and buffer elements removed for illustrative purposes.
[0024] Figure 4 An exploded perspective view of an optical element drive mechanism and an optical element according to certain features of the present disclosure, with the outer cover and the buffer element removed for illustrative purposes.
[0025] Figure 5According to certain features of the present disclosure, the optical element driving mechanism and the optical element drive mechanism are Figure 1 In the cross-sectional view along line BB of FIG, for illustrative purposes, the outer cover and the cushioning element are removed, and the first portion of the base is shown in oblique lines.
[0026] Figure 6 A top view of an optical element drive mechanism and an optical element with blades of an aperture assembly in a first position, with the outer cover, inner cover, and buffer element removed for illustrative purposes, in accordance with certain features of the present disclosure.
[0027] Figure 7 A top view of an optical element drive mechanism and an optical element with a blade in a second position according to certain features of the present disclosure, with the outer cover, inner cover, and buffer element removed for illustrative purposes.
[0028] Figure 8 A top view of an optical element drive mechanism and an optical element with a blade in a third position according to certain features of the present disclosure, with the outer cover, inner cover, and buffer element removed for illustrative purposes.
[0029] Figure 9 A top view of an optical element drive mechanism and an optical element with a blade in a fourth position according to certain features of the present disclosure, with the outer cover, inner cover, and buffer element removed for illustrative purposes.
[0030] The reference numerals are as follows:
[0031] 1: Optical element drive mechanism
[0032] 10: Optical components
[0033] 100: Activities Department
[0034] 110: Stabilizing element
[0035] 100-b: convex column
[0036] 200:Fixed part
[0037] 210: Outer cover
[0038] 220: Buffer element
[0039] 230:Frame
[0040] 230-a: convex column
[0041] 240: Base
[0042] 241: Part 1
[0043] 242: Part 2
[0044] 243, 244, 245, 246, 247: Connecting elements
[0045] 250: outer frame
[0046] 260: Shading element
[0047] 270:Inner cover
[0048] 300: Drive components
[0049] 310: Magnetic components
[0050] 311: first surface
[0051] 312: Second surface
[0052] 320: Coil
[0053] 400: Aperture assembly
[0054] 410: Blade
[0055] 410-a: hole
[0056] 410-b: Long hole
[0057] 470: Opening
[0058] 500: Circuit components
[0059] 511, 512, 513, 514: external components
[0060] 511-E, 512-E, 513-E, 514-E: electrical connection parts
[0061] 521, 522, 523, 524, 525, 526: elastic elements
[0062] 600: Boot component
[0063] 611, 612, 613, 614: guiding elements
[0064] P1: Protruding structure
[0065] S1: First side
[0066] T1:Thickness
[0067] T2: Thickness
[0068] O: Optical axis DETAILED DESCRIPTION
[0069] Various embodiments are described with reference to the accompanying drawings, and similar reference symbols are used to designate similar or equivalent elements throughout the accompanying drawings. The accompanying drawings are not drawn to scale, and the accompanying drawings are provided only to illustrate the features and characteristics of the present disclosure. It should be understood that many specific details, relationships, and methods are set forth to provide a comprehensive understanding. However, it will be readily apparent to those skilled in the art that various embodiments can be practiced without one or more specific details or in other ways. In some cases, for illustrative purposes, well-known structures or operations are not shown in detail. Various embodiments are not limited to the order in which actions or events are displayed, as some actions can occur in different orders and / or simultaneously with other actions or events. In addition, not all of the actions or events shown are required for implementing certain features and characteristics of the present disclosure.
[0070] For purposes of this embodiment, the singular includes the plural and vice versa unless expressly stated otherwise. The term "including" means "including, but not limited to." Furthermore, approximate words such as "about," "almost," "substantially," and "approximately," and their equivalents, may mean herein, for example, "at," "near," "nearly at," "within 3-5% of," "within acceptable manufacturing tolerances," or any logical combination thereof. Additionally, the terms "vertical" or "horizontal" are intended to further include "within 3-5%" of the vertical or horizontal direction, respectively. Furthermore, directional words such as "top," "bottom," "left," "right," "above," and "below" are intended to be relative to equivalent directions depicted in the referenced figures; understood from the context of the referenced object or element, such as from a common position of the object or element; or other such descriptions.
[0071] It is understood that although the terms "first", "second", etc. may be used herein to describe various elements, layers and / or parts, these elements, layers and / or parts should not be limited by these terms, and these terms are only used to distinguish different elements, layers and / or parts. Therefore, a first element, layer and / or part discussed below may be referred to as a second element, layer and / or part without departing from the teachings of some embodiments of the present disclosure. In addition, for the sake of brevity, the terms "first", "second", etc. may not be used in the specification to distinguish different elements. Without violating the scope defined by the appended claims, the first element and / or second element recorded in the claims may be interpreted as any element that meets the description in the specification.
[0072] It should be noted that the technical solutions provided in the following different embodiments can be replaced, combined or mixed with each other to form another embodiment without violating the spirit of the present disclosure.
[0073] The present disclosure relates to an optical element driving mechanism having a driving component and a guiding component for driving a movable portion and an optical element to move, thereby adjusting the photographic imaging of the optical element driving mechanism to meet different photographic requirements.
[0074] First, please see Figures 1 to 4 , Figure 1 1 is a perspective view of an optical element driving mechanism 1 and an optical element 10 according to certain features of the present disclosure. Figure 2 According to certain features of the present disclosure, the optical element driving mechanism 1 and the optical element 10 are arranged along Figure 1 Cross-section view of line AA. Figure 3 According to certain features of the present disclosure, the optical element driving mechanism 1 and the optical element 10 are shown in a perspective view with the outer cover 210 and the buffer element 220 removed for illustrative purposes. Figure 4 The exploded perspective view of the optical element driving mechanism 1 and the optical element 10 according to certain features of the present disclosure is shown, with the outer cover 210 and the buffer element 220 removed for illustrative purposes.
[0075] The optical element drive mechanism 1 includes a movable portion 100, a fixed portion 200, a drive assembly 300, an aperture assembly 400, a circuit assembly 500, and a guide assembly 600. The movable portion 100 is connected to the optical element 10, which can be, for example, an optical lens. The movable portion 100 can move relative to the fixed portion 200. The drive assembly 300 drives the movable portion 100 to move. The optical element 10 is mounted on a lens drive device (not shown), and the lens drive device achieves the functions of autofocus (AF) and optical image stabilization (OIS). The lens drive device has multiple drive circuit units (not shown) for driving the lens drive device.
[0076] The movable portion 100 includes a stabilizing element 110. The stabilizing element 110 is fixedly mounted on the side of the movable portion 100 opposite a magnetic element 310 of the driving assembly 300. The stabilizing element 110 can be a magnetic element of different size than the magnetic element 310, providing additional magnetic attraction to the movable portion 100 to stabilize the structure.
[0077] The fixing portion 200 includes an outer cover 210 , a buffer element 220 , a frame 230 , a base 240 , an outer frame 250 , a light shielding element 260 and an inner cover 270 .
[0078] The outer cover 210 at least partially covers the aperture assembly 400 and the optical element 10. The buffer element 220 is disposed between the outer cover 210 and the aperture assembly 400. The outer cover 210 and the buffer element 220 can protect the components in the optical element driving mechanism 1 from being easily affected by external impact.
[0079] Please also see Figure 5 . Figure 5 According to certain features of the present disclosure, the optical element driving mechanism 1 is arranged along Figure 1 In the cross-sectional view taken along line BB, for illustrative purposes, the outer cover 210 and the cushioning element 220 are removed, and the first portion 241 of the base 240 is shown with diagonal lines. The frame 230 is fixedly connected to the base 240. The base 240 has a protrusion P1. The protrusion P1 protrudes toward a first side S1 of the outer frame 250.
[0080] The base 240 includes a first portion 241, a second portion 242, and a plurality of connecting elements 243, 244, 245, 246, and 247. The second portion 242 is fixedly connected to the first portion 241. A thickness T2 of the second portion 242 is greater than a thickness T1 of the first portion 241, and the second portion 242 has a greater hardness than the first portion 241. The plurality of connecting elements 243, 244, 245, 246, and 247 are embedded in the second portion 242.
[0081] The light shielding element 260 can be made of a light absorbing material, such as SOMA. The inner cover 270 is movably disposed on the aperture assembly 400. The aperture assembly 400 is located between the light shielding element 260 and the inner cover 270.
[0082] Please continue to refer to Figure 4 The driving assembly 300 includes a magnetic element 310 and a coil 320. The magnetic element 310 is disposed on the movable portion 100. The coil 320 is disposed on the protruding structure P1 of the base 240, adjacent to the first side S1.
[0083] The electromagnetic driving force generated between the magnetic element 310 and the coil 320 causes the magnetic element 310 to move relative to the coil 320. This causes the movable portion 100 to move relative to the base 240, driving the aperture assembly 400. Therefore, the electromagnetic driving force generated between the magnetic element 310 and the coil 320 drives the movable portion 100, which in turn drives the aperture assembly 400 to move relative to the base 240.
[0084] The aperture assembly 400 has a plurality of blades 410. In this embodiment, there are six blades 410. The six blades 410 form an opening 470, and an incident light enters the optical element 10 through the opening 470.
[0085] Circuit assembly 500 includes a plurality of external components 511, 512, 513, 514 and a plurality of elastic components 521, 522, 523, 524, 525, 526. The elastic components 521, 522, 523, 524, 525, 526 are flexible. External components 511, 512, 513, 514 are electrically connected to the elastic components 521, 522, 523, 524, 525, 526. The elastic components 521, 522, 523, 524, 525, 526 are electrically connected to coil 320 via connecting components 243, 244, 245, 246, 247.
[0086] The external components 511, 512, 513, 514 include a plurality of electrical connection portions 511-E, 512-E, 513-E, 514-E extending along the direction of incident light, that is, the electrical connection portions extend along the optical axis O. Specifically, the distance between the plurality of electrical connection portions 511-E, 512-E, 513-E, 514-E and the optical axis O is greater than the distance between the outer frame 250 and the optical axis O. Moreover, when viewed along the direction of incident light, the electrical connection portions 511-E, 512-E, 513-E, 514-E of the circuit assembly 500 at least partially overlap with the outer frame 250 (see FIG. 2 ). Figure 1 ), thereby facilitating the placement of the optical element driving mechanism 1 on the lens driving device. Specifically, in this embodiment, the lens driving device equipped with the optical element 10 does not need to additionally design a circuit for driving the movable portion 100 and the aperture assembly 400, thereby complicating the structural design of the lens driving device. At the same time, in conjunction with the electrical connection portions 511-E, 512-E, 513-E, and 514-E of the circuit assembly 500 located on the first side S1 of the optical element driving mechanism 1, the driving circuit portion of the lens driving device can also be arranged on the first side S1. When the electrical connection portions 511-E, 512-E, 513-E, and 514-E and the driving circuit portion are all located on the same side, the circuit design for controlling the optical element driving mechanism 1 and the lens driving device can be made more convenient and simplified.
[0087] The base 240 is connected to the outer frame 250 via elastic elements 521, 522, 523, 524, 525, 526. Due to the flexibility of the elastic elements 521, 522, 523, 524, 525, 526, the base 240 can move relative to the outer frame 250. The outer elements 511, 512, 513, 514 are located on the first side S1 of the outer frame 250.
[0088] The guide assembly 600 includes a plurality of guide elements. In this embodiment, there are four guide elements 611, 612, 613, and 614 disposed between the movable portion 100 and the frame 230, adjacent to the first side S1. The movable portion 100 is connected to the frame 230 via the four guide elements 611, 612, 613, and 614. The guide elements 611, 612, 613, and 614 movably connect the frame 230 and the movable portion 100. When the movable portion 100 is driven by the drive assembly 300 and moves, the guide elements 611, 612, 613, and 614 roll between the frame 230 and the movable portion 100, allowing the movable portion 100 to move smoothly relative to the frame 230.
[0089] The magnetic element 310 includes a first surface 311 and a second surface 312. The first surface 311 and the second surface 312 face opposite directions. The first surface 311 faces the optical axis O, and the second surface 312 faces the coil 320. The distance d2 between the guiding elements 611, 612, 613, and 614 and the optical axis O of the incident light is greater than the distance d1 between the magnetic element 310 and the optical axis O (see Figure 5 ), and the distance d2 between the guiding elements 611, 612, 613, and 614 and the optical axis O of the incident light is greater than the distance between the second surface 312 of the magnetic element 310 and the optical axis O. The first surface 311 and the second surface 312 are both curved surfaces, and the radius of curvature of the first surface 311 is different from the radius of curvature of the second surface 312, with the radius of curvature of the first surface 311 being smaller than the radius of curvature of the second surface 312. With this structural design, when the electromagnetic driving force causes the magnetic element 310 to move relative to the coil 320, the electromagnetic driving force can be made more stable, thereby further stabilizing the movement of the movable portion 100 and the aperture assembly 400.
[0090] The following is relative to Figures 6 to 9 The movement of the movable portion 100 relative to the frame 230 will be described. Figure 6 A top view of the optical element driving mechanism 1 and the optical element 10 according to certain features of the present disclosure, wherein the blade 410 is located in a first position, and the outer cover 210, the inner cover 270, and the buffer element 220 are removed for illustrative purposes. Figure 7 A top view of the optical element driving mechanism 1 and the optical element 10 according to certain features of the present disclosure, wherein the blade 410 is located in a second position, and the outer cover 210, the inner cover 270, and the buffer element 220 are removed for illustrative purposes. Figure 8 A top view of the optical element driving mechanism 1 and the optical element 10 according to certain features of the present disclosure, wherein the blade 410 is located in a third position, and the outer cover 210, the inner cover 270, and the buffer element 220 are removed for illustrative purposes. Figure 9A top view of the optical element driving mechanism 1 and the optical element 10 according to certain features of the present disclosure, wherein the blade 410 is located in a fourth position, and the outer cover 210, the inner cover 270, and the buffer element 220 are removed for illustrative purposes.
[0091] The movable portion 100 is connected to the six blades 410. Each of the six blades 410 has a hole 410-a and a slot 410-b for connecting the movable portion 100 and the frame 230, as will be further explained below.
[0092] The movable portion 100 and the blade 410 can move relative to the frame 230. The movable portion 100 has a plurality of protrusions 100-b that penetrate into the long hole 410-b of the blade 410 and can move within the long hole 410-b.
[0093] The frame 230 has a plurality of protrusions 230-a that pass through the holes 410-a of the blade 410 and can rotate within the holes 410-a. The blade 410 is connected to the movable part 100 and the frame 230 via the protrusions 100-b and protrusions 230-a and the long holes 410-b and holes 410-a.
[0094] When the movable portion 100 is driven by the drive assembly 300 to move, the plurality of protrusions 100-b of the movable portion 100 penetrate the elongated holes 410-b of the blade 410 and move within the elongated holes 410-b. Furthermore, the plurality of protrusions 230-a of the frame 230 penetrate the holes 410-a of the blade 410 and rotate within the holes 410-a, thereby driving the movement of the blade 410. The movement of the blade 410 adjusts the size of the opening 470 formed by the blade 410.
[0095] exist Figure 6 In the first position shown, the opening 470 formed by the blades 410 is larger, so that a larger amount of incident light can pass through the opening 470 to reach the optical element 10 in this position.
[0096] exist Figure 7 In the second position shown, the opening 470 formed by the blades 410 is relatively large. Figure 6 The first position shown is small, so the second position may allow less incident light to reach the optical element 10 through the opening 470 than in the first position.
[0097] exist Figure 8 In the third position shown, the opening 470 formed by the blades 410 is relatively large. Figure 7 The second position is shown to be small, so that the amount of incident light reaching the optical element 10 through the opening 470 in the third position is less than that in the second position.
[0098] exist Figure 9 In the fourth position shown, the opening 470 formed by the blades 410 is relatively large. Figure 6The first position shown, Figure 7 The second position shown and Figure 8 The third position shown is small, so the amount of incident light reaching the optical element 10 through the opening 470 in the fourth position is less than that in the first position, the second position, and the third position.
[0099] In summary, the utility model provides an optical element driving mechanism, which includes a movable part, a fixed part, a driving assembly, an aperture assembly and a guide assembly. The movement of the driving assembly drives the movable part to move relative to the fixed part. Thus, the position of the blades can be adjusted, and the amount of incident light reaching the optical element can be adjusted to adapt to different photographic needs and provide more stable optical quality. At the same time, through the design of the outer frame and the circuit assembly, the optical element driving mechanism can be more easily set on the lens driving device, so that the structural design of the movable part and the aperture assembly of the optical element driving mechanism will not be affected by the lens driving device, but can be used with lens driving devices of different sizes. In addition, the circuit design for driving the movement of the movable part and the aperture assembly and the circuit design of the lens driving device can be independent of each other, thereby simplifying the design of the control circuit.
[0100] Although the embodiments of the present invention have been shown and described with respect to one or more embodiments, equivalents and modifications will occur to those skilled in the art upon reading and understanding this specification and the accompanying drawings. In addition, although a particular feature of the present invention may have been described with respect to only one of several embodiments, for any given or particular application, such feature may be combined with one or more other features of the other embodiments as may be required and advantageous.
[0101] Although various embodiments of the present invention have been described above, it should be understood that these are presented by way of example only and not limitation. Various modifications may be made to the embodiments of the present invention described herein without departing from the spirit or scope of the present invention. Therefore, the breadth and scope of the present invention should not be limited by any of the above-described embodiments. Rather, the scope of the present invention should be defined by the following claims and their equivalents.
[0102] The terms used herein are for the purpose of describing specific embodiments only and are not intended to limit the present invention. As used herein, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. In addition, the terms "including, includes," "having, has, with," or variations thereof used in the embodiments and / or claims are intended to be included in a manner similar to the word "comprising."
Claims
1. An optical element driving mechanism, characterized in that: include: a movable portion for connecting to an optical element; a fixed portion, the movable portion being movable relative to the fixed portion; a driving assembly for driving the movable part to move; as well as an aperture assembly having a plurality of blades, wherein the plurality of blades form an opening, and an incident light enters the optical element through the opening; The fixing portion includes: an outer cover, at least partially covering the aperture assembly and the optical element; as well as A buffer element is arranged between the outer cover and the aperture assembly.
2. The optical element driving mechanism according to claim 1, wherein: Also includes: A circuit assembly comprising: Multiple external components; as well as A plurality of elastic elements, a plurality of external elements electrically connected to the plurality of elastic elements, and A plurality of the elastic elements are electrically connected to the driving assembly.
3. The optical element driving mechanism according to claim 2, wherein: The fixing portion further includes: a framework; a base; and An outer frame, wherein The frame is fixedly connected to the base, and the base is connected to the outer frame via a plurality of elastic elements; and The plurality of external components are located on a first side of the outer frame.
4. The optical element driving mechanism according to claim 3, wherein: The drive assembly includes: a magnetic element disposed on the movable portion; and A coil is disposed on a protruding structure of the base, adjacent to the first side, wherein the protruding structure protrudes toward the first side.
5. The optical element driving mechanism according to claim 4, wherein: The movable portion includes a stabilizing element fixedly disposed on the opposite side of the magnetic element.
6. The optical element driving mechanism according to claim 4, wherein: Also included is a guide assembly, wherein: The guide assembly includes a plurality of guide elements disposed between the movable portion and the frame, adjacent to the first side; The movable portion is connected to the frame via a plurality of the guide elements.
7. The optical element driving mechanism according to claim 6, wherein: The distance between the plurality of guiding elements and an optical axis of the incident light is greater than the distance between the magnetic element and the optical axis.
8. The optical element driving mechanism according to claim 4, wherein: The base includes: - Part I; and a second portion fixedly connected to the first portion, wherein A thickness of the second portion is greater than a thickness of the first portion, and a hardness of the second portion is greater than a hardness of the first portion.
9. The optical element driving mechanism according to claim 4, wherein: The base further includes a plurality of connecting elements, and the plurality of elastic elements are electrically connected to the coil via the plurality of connecting elements.
10. The optical element driving mechanism according to claim 3, wherein: The external element also includes a plurality of electrical connection portions extending along the direction of the incident light, wherein the distance between the plurality of electrical connection portions and an optical axis of the incident light is greater than the distance between the outer frame and the optical axis, and when viewed along the direction of the incident light, the plurality of electrical connection portions at least partially overlap with the outer frame.
11. The optical element driving mechanism according to claim 4, wherein: The magnetic element includes a first surface and a second surface, the first surface and the second surface face opposite directions, the second surface faces the coil, the first surface and the second surface are both curved surfaces, and the curvature radius of the first surface is different from the curvature radius of the second surface, and the curvature radius of the first surface is smaller than the curvature radius of the second surface.