Optical drive mechanism

Abstract

An optical drive mechanism is provided. The optical drive mechanism includes a carrier, a fixed part, a first elastic element, and a first adhesive element. The carrier is configured to connect an optical element and is movable relative to the fixed part. The carrier is movably connected to the fixed part via the first elastic element. The first elastic element is connected to the carrier or the fixed part via the first adhesive element.

Description

Technical Field

[0001] This disclosure relates to an optical drive mechanism, and more particularly to an optical drive mechanism with a configuration of elastic elements. Background Technology

[0002] With the development of technology, many electronic devices today (such as smartphones) have the function of taking pictures or recording videos. Through the camera module set on electronic devices, users can operate the electronic devices to capture all kinds of photos, bringing people a rich visual experience.

[0003] When users operate electronic devices equipped with lens modules, shaking may occur, resulting in blurred images captured by the lens module. However, with the increasing demand for image quality, excellent image stabilization capabilities of lens modules are becoming increasingly important. Designing a superior optical image stabilization mechanism is a crucial research topic.

[0004] This invention addresses the problem that the spring constant K of an optical drive mechanism with an elastic element of a certain thickness becomes nonlinear during a large drive stroke, and provides a solution to this problem. Summary of the Invention

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

[0006] This invention provides an optical driving mechanism, which includes a carrier, a fixing part, a first elastic element, and a plurality of first adhesive elements. The carrier can be used to connect optical elements and is movable relative to the fixing part. The carrier is movably connected to the fixing part via the first elastic element, and the first elastic element is connected to the carrier or the fixing part via the first adhesive elements.

[0007] According to some embodiments of this disclosure, the first elastic element of the optical drive mechanism is connected to the carrier via a plurality of first adhesive elements, and the first elastic element further includes a plurality of first chords, a plurality of second chords, and a plurality of adhesive portions, wherein the first chords and second chords are connected to the first adhesive elements via adhesive portions. The carrier has a plurality of contact surfaces facing the adhesive portions.

[0008] According to some embodiments of this disclosure, the first elastic element of the optical drive mechanism further includes a plurality of first fixed portions, a plurality of first movable portions, and a plurality of first string roots. The plurality of first fixed portions are fixedly connected to the fixed portions, and the plurality of first movable portions are fixedly connected to the carrier; each of the first string roots is located at the intersection of a first string and a second string. When viewed along the optical axis, a first string root is connected not only to a first fixed portion and a first movable portion, but also to another first movable portion.

[0009] According to some embodiments of this disclosure, the first elastic element of the optical drive mechanism has a plate-like structure perpendicular to the optical axis direction, and when viewed along the optical axis direction, the adhesive portion at least partially overlaps with the contact surface.

[0010] According to some embodiments of this disclosure, both the first and second chords of the optical drive mechanism have a strip-like structure.

[0011] According to some embodiments of this disclosure, the optical driving mechanism includes a second elastic element. The second elastic element includes a plurality of second fixed ends, a plurality of second movable ends, a plurality of third strings, a plurality of second adhesive elements, and a plurality of second string roots. The plurality of second fixed ends are fixedly connected to the fixed parts, and the plurality of second movable ends are fixedly connected to the carrier. Each of the second movable ends is movably connected to its corresponding second fixed end via a corresponding third string. The second string roots are located at the intersection of the second movable end and the third string. The second elastic element is connected to the carrier via second adhesive elements, and each of the second adhesive elements is respectively adjacent to a corresponding second string root.

[0012] According to some embodiments of this disclosure, when the first elastic element and the second elastic element are disposed in the optical drive mechanism, the first elastic element and the second elastic element are respectively pre-deformed, and the degree of pre-deformation of the first elastic element and the second elastic element is different.

[0013] According to some embodiments of this disclosure, the thickness of the first elastic element of the optical drive mechanism is less than the thickness of the second elastic element.

[0014] According to some embodiments of this disclosure, the thickness of the first elastic element of the optical drive mechanism may be 0.03 mm, and the thickness of the second elastic element may be 0.04 mm.

[0015] According to some embodiments of this disclosure, the first elastic element and the second elastic element of the optical drive mechanism may be made of titanium copper.

[0016] According to some embodiments of this disclosure, the first adhesive element and the second adhesive element of the optical drive mechanism may be UV adhesive.

[0017] According to some embodiments of this disclosure, the carrier of the optical drive mechanism can be moved from an initial position to a first extreme position along the optical axis direction via a first elastic element and a second elastic element.

[0018] According to some embodiments of this disclosure, the carrier of the optical drive mechanism can be moved from an initial position to a second extreme position along the optical axis via a first elastic element and a second elastic element.

[0019] According to some embodiments of this disclosure, when the carrier is in a second extreme position relative to the fixed portion, the second chord does not contact the upper part of the carrier. When the carrier is in a first extreme position relative to the fixed portion, the second chord contacts the upper part of the carrier.

[0020] According to some embodiments of this disclosure, there is a critical position between the initial position and the second extreme position, and when the carrier is located between the initial position and the critical position, the root of the first chord contacts the upper part of the carrier, and when the carrier is located between the critical position and the second extreme position, the root of the first chord does not contact the upper part of the carrier.

[0021] According to some embodiments of this disclosure, when the carrier moves from the initial position to the first extreme position, the carrier has a first displacement in the optical axis direction.

[0022] According to some embodiments of this disclosure, when the carrier moves from the initial position to the second limit position, the carrier has a second displacement in the optical axis direction.

[0023] According to some embodiments of this disclosure, the first displacement is less than the second displacement.

[0024] According to some embodiments of this disclosure, when in the second extreme position, the elastic constant of the first elastic element is approximately constant.

[0025] The beneficial effect of the present invention is that by driving the optical element in the movable part to move relative to the fixed part through the elastic element, functions such as optical focusing or optical shaking compensation can be achieved. Furthermore, by the arrangement relationship between the elastic element and the first adhesive element, the situation of stability decrease that occurs in elastic elements of certain thicknesses during a large driving stroke is solved, thereby improving the quality of the optical driving mechanism. Attached Figure Description

[0026] To make the above and other objects, features and advantages of this disclosure more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings.

[0027] Figure 1 This is an exploded view of an optical drive mechanism shown according to some embodiments of the present disclosure.

[0028] Figure 2 This is a top view of an optical drive mechanism including a first elastic element, as shown in some embodiments of the present disclosure.

[0029] Figure 3 This is a top view of an optical drive mechanism including a second elastic element, as shown in some embodiments of the present disclosure.

[0030] Figure 4 This is a perspective view of a first elastic element, a second elastic element, and a carrier according to some embodiments of the present disclosure.

[0031] Figure 5A For when Figure 4 An enlarged side view of the first elastic element and the bearing member at the first extreme position.

[0032] Figure 5B For when Figure 4 An enlarged side view of the second elastic element and the carrier in the second limit position.

[0033] Figure 6A For when Figure 4 A side view of the first elastic element, the second elastic element, and the carrier in their initial positions.

[0034] Figure 6B For when Figure 4 A side view of the first elastic element, the second elastic element, and the carrier at the first extreme position.

[0035] Figure 6C For when Figure 4 A side view of the first elastic element, the second elastic element, and the carrier in the second extreme position.

[0036] The attached figures are labeled as follows:

[0037] 10: Optical drive mechanism

[0038] 20: Bearing component

[0039] 40: First elastic element

[0040] 42: First fixing part fixing end

[0041] 44: Fixed end of the first moving part

[0042] 46: Root of the first chord

[0043] 50: First adhesive element

[0044] 60: First chord

[0045] 70: Second chord

[0046] 75: Third chord

[0047] 80: Adhesive part

[0048] 90: Contact surface

[0049] 100: Second elastic element

[0050] 102: Second fixing part fixing end

[0051] 104: Fixed end of the second moving part

[0052] 106: Root of the second string

[0053] 110: Base

[0054] 120: Coil

[0055] 130: Outer shell

[0056] 140: Magnetic components

[0057] 150: Optical axis

[0058] 160: Activities Department

[0059] 170: Fixing part

[0060] 180: Spacer

[0061] 190: Driver Components

[0062] T1: Thickness

[0063] T2: Thickness Detailed Implementation

[0064] To make the objectives, features, and advantages of this disclosure more apparent and understandable, specific embodiments are described below in conjunction with the accompanying drawings. The configuration of the elements in the embodiments is for illustrative purposes only and is not intended to limit the scope of this disclosure. Furthermore, the repetition of some reference numerals in the accompanying drawings is for simplification and does not imply any correlation between different embodiments. The directional terms used in the following embodiments, such as up, down, left, right, front, or back, are merely for reference to the directions in the accompanying drawings. Therefore, the directional terms used are for illustrative purposes and not for limiting the scope of this disclosure.

[0065] Furthermore, relative terms such as "lower" or "bottom" and "higher" or "top" may be used in the embodiments to describe the relative relationship of one element to another. It is understood that if the illustrated device is flipped upside down, the element described as being on the "lower" side will become the element on the "higher" side.

[0066] The following describes the optical driving mechanism of an embodiment of the present invention. However, it will be readily apparent that the embodiments of the present invention provide many suitable inventive concepts that can be implemented in a wide range of specific contexts. The specific embodiments disclosed are merely illustrative of the use of the invention in a particular manner and are not intended to limit the scope of the invention. Unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by those skilled in the art to which this disclosure pertains. It is understood that these terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning consistent with the relevant art and the background or context of this disclosure, and should not be interpreted in an idealized or overly formal manner, unless specifically defined herein.

[0067] Please see Figure 1 , Figure 1 This is an exploded view of an optical drive mechanism according to some embodiments of the present disclosure. The aforementioned optical drive mechanism 10 may be disposed inside an electronic device such as a camera, tablet computer, or mobile phone, and has a receiving or supporting portion for carrying an optical element (not shown), such as an optical lens with one or more lenses. When light from the outside enters the optical drive mechanism 10 carrying the optical element, the incident light passes from the light incident end (near the housing 130) along the optical axis 150 of the optical element, through the optical element disposed within the optical drive mechanism 10, to the light emitting end (near the base 110), and then to a photosensitive element module (not shown) outside the optical drive mechanism 10 to acquire an image.

[0068] like Figure 1 As shown, the optical drive mechanism 10 is used to drive optical elements, and mainly includes a fixed part 170, a movable part 160, and a drive assembly 190. The fixed part 170 includes a base 110, a spacer 180, and a housing 130. The movable part 160 includes a support member 20, a first elastic element 40, and a second elastic element 100. The drive assembly 190 includes two magnetic elements 140 and a coil 120. The housing 130 of the fixed part 170 is fixedly connected to the base 110 to form a receiving space, thereby providing a place for and protecting the aforementioned elements.

[0069] It should be understood that the carrier 20 is connected to the spacer 180 and the base 110 respectively through the first elastic element 40 and the second elastic element 100, so that the carrier 20 can be suspended inside the housing 130. The optical element is fixed inside the carrier 20, and the aforementioned magnetic element 140 and coil 120 can form a drive assembly 190 to drive the carrier 20 to move along the direction of the optical axis 150 (Z direction) to achieve the function of autofocus. However, the same arrangement as in this disclosure can also be applied to the function of optical image stabilization.

[0070] The aforementioned first elastic element 40 and second elastic element 100 can be upper and lower leaf springs, respectively, used to provide a movable connection between the carrier 20 and the spacer 180 and the base 110. The second elastic element 100 is disposed on the base 110 and connected to the lower part of the carrier 20, while the first elastic element 40 is disposed above the carrier 20 and connected to the upper part of the carrier 20. The first elastic element 40 is connected to the carrier 20 via a first adhesive element 50 (visible in...). Figure 2 It can be connected to the carrier 20 or the fixing part 170. In other words, this technology can be used for connection with the moving part 160 or for connection with the fixing part 170.

[0071] In some embodiments of this disclosure, the first adhesive element 50 may be a UV adhesive, but the present invention is not limited thereto. For example, the first adhesive element 50 may also be a protrusion or a positioning hole, which can connect the first elastic element 40 to the carrier 20 or the fixing part 170 by engaging with a corresponding element (e.g., a positioning hole or a protrusion on the carrier 20).

[0072] Figure 2 This is a top view of an optical drive mechanism 10 including a first elastic element 40, as shown in some embodiments of the present disclosure. Figure 2 As shown, the first elastic element 40 includes four first strings 60, four second strings 70, four adhesive portions 80, four first fixed portion fixing ends 42, four first movable portion fixing ends 44, and four first string root portions 46. The first fixed portion fixing ends 42 are fixedly connected to the spacers 180 of the fixing portion 170 (see image). Figure 1 The first movable part fixed end 44 is fixedly connected to the carrier 20. The first string root 46 is located at the junction of the first string 60 and the second string 70. In other words, the two ends of the first string 60 are the first fixed part fixed end 42 and the first string root 46, respectively, and the two ends of the second string 70 are the first movable part fixed end 44 and the first string root 46, respectively, wherein the first movable part fixed end 44 is located at the adhesive part 80.

[0073] In detail, the first string 60 can be regarded as part of the string arm of the first elastic element 40, and the second string 70 can be regarded as the inner string of the first elastic element 40 that is not the adhesive part 80. The first string 60 and the second string 70 are connected to the first adhesive element 50 via the adhesive part 80, and both the first string 60 and the second string 70 have a strip-shaped structure.

[0074] In addition, the carrier 20 also includes a contact surface 90 ( Figure 4 The adhesive portion 80 of the first elastic element 40 may face the contact surface 90 of the carrier 20. The first elastic element 40 may have a plurality of first strings 60, second strings 70 and adhesive portions 80. In this embodiment, the first elastic element 40 has four first strings 60, four second strings 70 and four adhesive portions 80, but the number of first strings 60, second strings 70 and adhesive portions 80 of the first elastic element 40 may be different from that in this embodiment.

[0075] In this embodiment, the first elastic element 40 has four first fixed ends 42, four first movable ends 44, and four first string roots 46. However, the number of the first fixed ends 42, the first movable ends 44, and the first string roots 46 of the first elastic element 40 may differ from that in this embodiment. When viewed along the optical axis (Z direction), one first string root 46 is connected to one first fixed end 42 and one first movable end 44, as well as another first movable end 44.

[0076] Compared to the traditional method, the first adhesive element 50 is disposed at the root 46 (outlet end) of the first string, which prevents the inner string portion of the first elastic element 40 from being driven when the support member 20 is displaced. This causes the elastic constant of the first elastic element 40 to be nonlinear when the support member 20 has a large driving stroke. For example, since the inner string portion of the first elastic element 40 cannot be driven when the support member 20 is displaced, the elastic constant of the first elastic element 40 becomes larger as the deformation of the first elastic element 40 becomes larger.

[0077] Conversely, in this embodiment, the first adhesive element 50 is not disposed at the first string root 46 of the first elastic element 40, so that the inner string other than the adhesive portion 80, that is, the second string 70, can be driven by the drive component 190 of the optical drive mechanism 10 together with the first string 60 when the carrier 20 performs a large drive stroke, so that the elastic constant of the first elastic element 40 is still linear even when it is close to the limit position.

[0078] In other words, the elastic constant of the first elastic element 40 of the optical drive mechanism 10 provided in this disclosure does not increase as the deformation of the first elastic element 40 increases, thus the stability and quality of the optical drive mechanism 10 can be improved. Furthermore, the elastic constant of the first elastic element 40 is different from the elastic constant of the second elastic element 100.

[0079] Figure 3 This is a second elastic element 100 shown according to some embodiments of the present disclosure. The second elastic element 100 includes four second fixed portion fixing ends 102, four second movable portion fixing ends 104, four third string lines 75, four second adhesive elements 55, and four second string roots 106. However, the number of the second fixed portion fixing ends 102, second movable portion fixing ends 104, third string lines 75, second adhesive elements 55, and second string roots 106 of the second elastic element 100 may differ from that in this embodiment. In some embodiments of the present disclosure, the second adhesive element 55 may be UV adhesive, but the present invention is not limited thereto. For example, the second adhesive element 55 may also be a protrusion or a positioning hole, which can be connected to the support member 20 or the base 110 of the fixing portion 170 (see below) by engaging with a corresponding element (e.g., a positioning hole or a protrusion on the support member 20). Figure 1 ).

[0080] The second fixing end 102 can be fixedly connected to the base 110 of the fixing part 170 (visible in...). Figure 1 The second movable part fixed end 104 can be fixedly connected to the carrier 20. The second movable part fixed end 104 is movably connected to the second fixed part fixed end 102 via the third string 75. The second string root 106 is located at the junction of the second movable part fixed end 104 and the third string 75.

[0081] Figure 4 This is a perspective view of a first elastic element 40, a second elastic element 100, and a carrier 20 according to some embodiments of the present disclosure. The thickness T1 of the first elastic element 40 is less than the thickness T2 of the second elastic element 100, wherein the thickness of the first elastic element 40 may be 0.03 mm and the thickness of the second elastic element 100 may be 0.04 mm, but the present disclosure is not limited thereto. The contact surface 90 of the carrier 20 may be... Figure 4 As can be seen, the adhesive portion 80 of the first elastic element 40 can pass through the first adhesive element 50 (visible in...) Figure 2 Connect to the contact surface 90.

[0082] Figure 5A For when Figure 4An enlarged side view of the second elastic element 100 and the carrier 20 in the first extreme position. The second fixing end 102 of the second elastic element 100 is fixably attached to the base 110 of the fixing part 170 (visible in...). Figure 1 The second movable part, fixed end 104, can be fixedly connected to the carrier 20. For example... Figure 5A As shown, the two ends of the third string 75 are the fixed end 102 of the second fixed part and the fixed end 104 of the second movable part, respectively.

[0083] Figure 5B For when Figure 4 An enlarged side view of the first elastic element 40 and the carrier 20 in the second extreme position. The first fixing end 42 of the first fixing part of the first elastic element 40 is fixably connected to the spacer 180 of the fixing part (visible in...). Figure 1 The first movable part fixed end 44 can be fixedly connected to the carrier 20. The first chord root 46 is located at the junction of the first chord 60 and the second chord 70.

[0084] like Figure 5B As shown, the two ends of the first string 60 are the fixed end 42 of the first fixed part and the root 46 of the first string, respectively, and the two ends of the second string 70 are the root 46 of the first string and the fixed end 44 of the first movable part, respectively. It should be noted that when in the second extreme position, the root 46 of the first string of the first elastic element 40 does not contact the upper part of the support member 20. Furthermore, when the first elastic element 40 in the optical drive mechanism 10 is in the second extreme position, the elastic constant of the first elastic element 40 can be approximately linear.

[0085] Figure 6A For when Figure 4 The first elastic element 40, the second elastic element 100, and the carrier 20 are shown in their initial positions. It should be understood that the accompanying drawings are for illustrative purposes only and may not be shown to scale. When the first elastic element 40, the second elastic element 100, and the carrier 20 of the optical drive mechanism 10 are in their initial positions, the first chord root 46 can contact the upper part of the carrier 20.

[0086] It can be noted that when the first elastic element 40, the second elastic element 100, and the carrier 20 of the optical drive mechanism 10 are in their initial positions, the first elastic element 40 and the second elastic element 100 may each have a pre-deformation. In other words, when the carrier 20 is in its initial position, the first elastic element 40 and the second elastic element 100 have a deformation amount in the direction of the optical axis 150. According to some embodiments of this disclosure, the pre-deformation degree of the first elastic element 40 and the second elastic element 100 is different. According to some embodiments of this disclosure, the pre-deformation amount of the first elastic element 40 may be greater than the pre-deformation amount of the second elastic element 100.

[0087] In the initial position, the first elastic element 40 and the second elastic element 100 are configured with a deformation amount, which allows the magnetic element 140 in the optical drive mechanism 10 to have a larger height in the direction of the optical axis 150, thereby enabling the drive assembly 190 to generate a larger driving force. According to some embodiments of this disclosure, the first elastic element 40 and the second elastic element 100 may be made of titanium copper, but this disclosure is not limited thereto.

[0088] Figure 6B For when Figure 4 A side view of the first elastic element 40, the second elastic element 100, and the carrier 20 in the first extreme position. The carrier 20 in the optical drive mechanism 10 can be moved from the initial position described above to the first extreme position in the direction of the optical axis 150 via the first elastic element 40 and the second elastic element 100. When the carrier 20 is in the first extreme position, the second chord 70 of the first elastic element 40 (the second chord 70 is located between the first chord root 46 and the fixed end 44 of the first movable part, and the second chord 70 is visible) Figure 4 or Figure 5B ) The upper part of the contact bearing 20.

[0089] Figure 6C For when Figure 4 A side view of the first elastic element 40, the second elastic element 100, and the carrier 20 in their second extreme positions. When the carrier 20 is in the second extreme position, the second string 70 (located between the root of the first string 46 and the fixed end of the first movable part 44, the second string 70 is visible) Figure 4 or Figure 5B It does not contact the upper part of the bearing 20.

[0090] Reference Figure 6A , Figure 6B as well as Figure 6C When the carrier 20 moves from the optical axis (Z direction) Figure 6A Move the initial position in Figure 6B When the first extreme position is reached, the carrier 20 has a first displacement, when the carrier 20 moves from the optical axis 150 in the direction of the first extreme position. Figure 6A Move the initial position in Figure 6C When the second extreme position is reached, the bearing member 20 has a second displacement, wherein the first displacement is less than the second displacement.

[0091] Reference Figure 6A as well as Figure 6CThere is a critical position between the initial position and the second extreme position, and when the support member 20 is located between the initial position and the critical position, the first chord root 46 of the first elastic element 40 can contact the upper part of the support member 20. Conversely, when the support member 20 is located between the critical position and the second extreme position, the first chord root 46 of the first elastic element 40 does not contact the upper part of the support member 20.

[0092] In other words, when the support member 20 is located between the critical position and the second limit position, the chord that can generate deformation becomes longer, so that the elastic constant of the first elastic element 40 can remain linear when the support member 20 has a large driving stroke. In other words, originally only the first chord 60 of the first elastic element 40 can generate deformation during the driving stroke, but after the setting described in the embodiments of this disclosure, when the support member exceeds the critical position, both the first chord 60 and the second chord 70 of the first elastic element 40 can generate deformation. Therefore, it can be regarded as the chord that can generate deformation becoming longer. This setting allows the elastic constant of the first elastic element 40 to remain linear even during a large driving stroke.

[0093] In summary, the present invention provides an optical driving mechanism, which includes a carrier, a fixing part, a first elastic element, and a first adhesive element. The carrier can be used to connect an optical element and is movable relative to the fixing part. The carrier is movably connected to the fixing part via the first elastic element, and the first elastic element is connected to the carrier or the fixing part via the first adhesive element. In this way, the optical element in the movable part is driven by the elastic element to move relative to the fixing part, thereby achieving functions such as optical focusing or optical shakiness compensation. Furthermore, the arrangement relationship between the elastic element and the first adhesive element solves the problem of stability degradation that occurs in elastic elements of certain thicknesses during a large driving stroke, thereby improving the quality of the optical driving mechanism.

[0094] In detail, the present invention places the first adhesive element in the optical drive mechanism at a location far from the root of the string, wherein the first adhesive element is used to movably connect the first elastic element to the carrier. In this way, as the drive stroke of the optical drive mechanism approaches its limit position, in addition to driving the string arm, the inner string other than the adhesive part can also be driven. Therefore, the elastic constant of the elastic element, which originally became nonlinear due to the large drive stroke, tends to be linear, thereby improving the quality of the optical drive mechanism.

[0095] The ordinal numbers in this specification and claims, such as "first," "second," etc., are not sequential in any particular order; they are only used to distinguish two different elements with the same name.

[0096] While the embodiments and advantages of this disclosure have been disclosed above, it should be understood that those skilled in the art can make modifications, substitutions, and refinements without departing from the spirit and scope of this disclosure. Furthermore, the scope of protection of this disclosure is not limited to the processes, machines, manufacturing methods, material compositions, apparatuses, methods, and steps described in the specific embodiments of the specification. Those skilled in the art can understand from the disclosure of this disclosure that current or future developed processes, machines, manufacturing methods, material compositions, apparatuses, methods, and steps can be used according to this disclosure as long as they can perform substantially the same function or obtain substantially the same results in the embodiments described herein. Therefore, the scope of protection of this disclosure includes the aforementioned processes, machines, manufacturing methods, material compositions, apparatuses, methods, and steps. In addition, each claim constitutes an individual embodiment, and the scope of protection of this disclosure also includes combinations of various claims and embodiments.

[0097] The above embodiments are described in sufficient detail to enable those skilled in the art to implement the apparatus disclosed herein through the above description. It should be understood that some modifications and refinements may be made without departing from the spirit and scope of the invention. Therefore, the scope of protection of the invention shall be determined by the appended claims.

Claims

1. An optical driving mechanism, comprising: A support component for connecting an optical element; A fixed part, the support member being movable relative to the fixed part; A first elastic element, through which the carrier is movably connected to the fixing part; as well as A plurality of first adhesive elements, wherein the first elastic element is connected to the carrier or the fixing part via the plurality of first adhesive elements; The first elastic element is connected to the carrier via a plurality of first adhesive elements, and the first elastic element includes a plurality of first strings, a plurality of second strings, and a plurality of adhesive portions. The plurality of first strings and the plurality of second strings are connected to the plurality of first adhesive elements via the plurality of adhesive portions. The first elastic element further includes: Multiple first fixing parts are fixedly connected to the fixing parts at their fixing ends; Multiple first movable parts are fixedly connected to the carrier at their fixed ends; and A plurality of first string roots, each of the plurality of first string roots being located at the intersection of a plurality of first strings and a plurality of second strings; When viewed along an optical axis, in addition to being connected to one of the multiple first string roots and one of the multiple first fixed ends and one of the multiple first movable ends, it is also connected to one of another multiple first movable ends.

2. The optical drive mechanism of claim 1, wherein the carrier has a plurality of contact surfaces facing the plurality of adhesive portions.

3. The optical drive mechanism of claim 2, wherein the first elastic element has a plate-like structure perpendicular to the optical axis direction, and when viewed along the optical axis direction, the plurality of adhesive portions at least partially overlap with the plurality of contact surfaces.

4. The optical drive mechanism of claim 2, wherein the plurality of first strings and the plurality of second strings each have a strip-like structure.

5. The optical driving mechanism of claim 1, further comprising a second elastic element, wherein the second elastic element comprises: Multiple second fixing parts are fixedly connected to the fixing part at their fixing ends; Multiple second movable parts are fixedly connected to the carrier component; Each of the plurality of third strings and the plurality of fixed ends of the plurality of second movable parts is movably connected to one of the plurality of fixed ends of the plurality of second fixed parts via one of the plurality of third strings; Multiple second adhesive elements; as well as A plurality of second string roots, each of the plurality of second string roots being located at the junction of one of the plurality of fixed ends of the second movable part and one of the plurality of third strings; The second elastic element is connected to the carrier via a plurality of second adhesive elements, and each of the plurality of second adhesive elements is respectively adjacent to a plurality of second string roots.

6. The optical drive mechanism of claim 5, wherein the plurality of first adhesive elements and second adhesive elements are UV adhesives.

7. The optical drive mechanism of claim 5, wherein the first elastic element and the second elastic element are made of titanium copper.

8. The optical drive mechanism of claim 5, wherein the thickness of the first elastic element is less than the thickness of the second elastic element.

9. The optical drive mechanism of claim 8, wherein the thickness of the first elastic element is 0.03 mm.

10. The optical drive mechanism of claim 8, wherein the thickness of the second elastic element is 0.04 mm.

11. The optical drive mechanism of claim 5, wherein the carrier moves from an initial position to a first extreme position along the optical axis via the first elastic element and the second elastic element.

12. The optical drive mechanism of claim 11, wherein when the first elastic element and the second elastic element are in the initial position, the first elastic element and the second elastic element each have a pre-deformation, and the degree of pre-deformation of the first elastic element and the second elastic element is different.

13. The optical drive mechanism of claim 11, wherein the carrier moves from the initial position to a second extreme position along the optical axis direction via the first elastic element and the second elastic element.

14. The optical drive mechanism of claim 13, wherein when the carrier is located at the second extreme position relative to the fixed portion, the elastic constants of the first elastic element and the second elastic element are constant values.

15. The optical drive mechanism of claim 13, wherein when the carrier is located at the second extreme position relative to the fixed portion, the plurality of second chords do not contact the upper portion of the carrier, and when the carrier is located at the first extreme position relative to the fixed portion, the plurality of second chords contact the upper portion of the carrier.

16. The optical drive mechanism of claim 13, wherein there is a critical position between the initial position and the second extreme position, and when the carrier is located between the initial position and the critical position, a plurality of first string roots contact the upper part of the carrier, and when the carrier is located between the critical position and the second extreme position, a plurality of first string roots do not contact the upper part of the carrier.

17. The optical drive mechanism of claim 13, wherein when the carrier is located at the first extreme position relative to the fixed portion, the carrier has a first displacement in the optical axis direction.

18. The optical drive mechanism of claim 17, wherein when the carrier is located at the second extreme position relative to the fixed portion, the carrier has a second displacement in the optical axis direction.

19. The optical drive mechanism of claim 18, wherein the first displacement is less than the second displacement.

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