CN111007618B

CN111007618B - Optical assembly driving mechanism

Info

Publication number: CN111007618B
Application number: CN201910701145.7A
Authority: CN
Inventors: 胡晋铭; 陈圣宗; 刘守宸; 杨咏平; 宋欣忠
Original assignee: TDK Taiwan Corp
Current assignee: TDK Taiwan Corp
Priority date: 2018-10-05
Filing date: 2019-07-31
Publication date: 2023-01-31
Anticipated expiration: 2039-07-31
Also published as: CN211123432U; CN111007618A

Abstract

The present disclosure provides an optical assembly driving mechanism, which includes a fixed portion, a movable portion and a driving assembly. The fixing part comprises a base. The movable part moves relative to the fixed part and bears an optical component with an optical axis. The driving component drives the movable part to move relative to the fixed part. The base comprises a base and an embedded component, wherein the embedded component is partially embedded in the base and comprises a circuit component and a reinforced frame, the reinforced frame is of a plate-shaped structure and is provided with a through hole, and the optical axis passes through the through hole.

Description

Optical assembly driving mechanism

Technical Field

The present disclosure relates to driving mechanisms, and particularly to a driving mechanism for an optical module.

Background

With the development of technology, many electronic devices (such as smart phones or tablet computers) have a function of taking pictures or recording videos. Through the optical assembly and the optical assembly driving mechanism arranged on the electronic device, a user can operate the electronic device to extract various photos or films.

The trend of electronic devices is to make the electronic devices thinner, which means that the driving mechanism of the optical components mounted on the electronic devices also needs to be made thinner. The reduction in thickness and the structural strength of the optical module driving mechanism must be considered at the same time.

Disclosure of Invention

Some embodiments of the present disclosure provide an optical device driving mechanism, which includes a fixed portion, a movable portion and a driving device. The fixing part comprises a base. The movable part moves relative to the fixed part and bears an optical component with an optical axis. The driving component drives the movable part to move relative to the fixed part. The base comprises a base and an embedded component, wherein the embedded component is partially embedded in the base and comprises a circuit component and a reinforced frame, the reinforced frame is of a plate-shaped structure and is provided with a through hole, and an optical axis passes through the through hole.

According to some embodiments of the present disclosure, the stiffener frame and the circuit member are electrically independent. The embedded component comprises a metal material or a magnetic permeability material. The strengthening frame comprises a closed structure, and the closed structure surrounds the optical axis. The strengthening frame comprises a first protruding part which extends towards the direction far away from the optical axis. The strengthening frame comprises a second protruding part extending towards the direction far away from the optical axis, and the area of the first protruding part is different from that of the second protruding part when the strengthening frame is observed along the direction parallel to the optical axis. The optical component driving mechanism comprises an outer frame, the outer frame is connected with the first protruding part in a welding or fusing mode, and the area of the first protruding part is larger than that of the second protruding part when the outer frame is observed along the direction parallel to the optical axis. The base comprises a convex column, the strengthening frame comprises a third protruding part, and the third protruding part is provided with a bending part and is arranged on the convex column. The reinforcing frame includes a plurality of first protrusions arranged in a rotationally symmetric manner. The drive assembly comprises a magnetic assembly, the magnetic assembly is arranged on the outer frame, and when the magnetic assembly is observed along the direction parallel to the optical axis, the magnetic assembly is partially overlapped with the embedded assembly.

Some embodiments of the present disclosure provide an optical device driving mechanism, which includes a fixed portion, a movable portion and a driving device. The movable part moves relative to the fixed part and bears an optical component with an optical axis. The driving component drives the movable part to move relative to the fixed part. The movable part also comprises an elastic component and an electrical connecting material. The elastic component comprises an electric connection part and a notch, and the electric connection part comprises an arc. The electrical connection material is arranged on the electrical connection part and observed through the notch.

According to some embodiments of the disclosure, the angle of the arc is greater than one hundred eighty degrees. The electrical connection material has a curved surface corresponding to the arc. The driving assembly comprises an electrical contact, the electrical contact is separated from the electrical connection part by a distance, and the electrical connection part is positioned between the electrical contact and the electrical connection part. The elastic component also comprises a through hole which is adjacent to the electric connection part. The elastic component comprises a deformation part, the deformation part comprises a first section part and a second section part, and when the elastic component is observed along the direction parallel to the optical axis, the width of the first section part is larger than that of the second section part. The elastic component is arranged on the base and adjacent to the convex column, and the elastic component comprises an opening facing the convex column. The optical component driving mechanism comprises a connecting component which is arranged at the opening, the connecting opening and the convex column. The optical component driving mechanism comprises an adhesive material, wherein the adhesive material comprises an insulating material and is arranged on the electrical connecting material or the electrical contact of the driving component.

The embedded optical module has the advantages that the embedded optical module gives consideration to miniaturization of the optical module driving mechanism and strengthening of structural strength, and stress can be dispersed through special designs such as rotational symmetry and closed structures. Moreover, the connection of the outer frame and the embedded component can simplify the manufacturing process, reduce the production cost and reduce the pollution.

Drawings

Aspects of the disclosure are best understood from the following detailed description when read with the accompanying drawing figures. It should be noted that, in accordance with standard practice in the industry, various features are not drawn to scale. In fact, the dimensions of the elements may be arbitrarily increased or reduced for clarity of illustration.

Fig. 1 is a perspective view of an optical module drive mechanism and an optical module.

Fig. 2 is an exploded view of the optical assembly drive mechanism of fig. 1.

Figure 3 is a perspective view of the buried component.

Fig. 4 is a perspective view of the base.

Fig. 5 is a side view of the optical assembly drive mechanism.

Fig. 6 is a top view of a magnetic assembly and an embedded assembly.

Fig. 7 is a side view of the optical assembly drive mechanism.

Fig. 8 is a top view of the second elastomeric component.

Fig. 9 is a partial top view of a second elastomeric assembly.

Fig. 10 is a perspective view of the optical unit driving mechanism with a part of the unit omitted.

Fig. 11 is a side view of the optical unit driving mechanism with a part of the components omitted.

The reference numbers are as follows:

1. optical assembly driving mechanism

2. Optical assembly

10. Outer frame

20. Frame structure

21. Center opening

30. A first elastic component

40. Drive assembly

50. Magnetic assembly

60. Coil

65. Electrical contact

70. Bearing seat

71. Through hole

80. Second elastic component

81. Fixed part connecting part

82. Movable part connecting part

83. Deformation part

86. Electrical connection part

87. Gap

88. Through hole

89. Opening of the container

90. Base seat

100. Embedded component

110. Reinforced frame

111. Piercing of holes

116. First protruding part

117. Second protrusion

118. Third protruding part

120. Circuit component

130. Base seat

131. Convex column

140. Electrical connecting material

150. Connecting component

160. Adhesive material

831. First section

832. Second section part

1181. A bent part

Length of L1 and L2

O optical axis

P1 securing part

P2 movable part

Detailed Description

The following disclosure provides many different embodiments or examples, and describes specific examples of various components and arrangements to implement various features of the disclosure. For example, if the specification states a first feature formed "on" or "over" a second feature, that embodiment may include the first feature in direct contact with the second feature, embodiments may also include additional features formed between the first and second features, such that the first and second features are not in direct contact. Ordinal numbers such as "first," "second," etc., in the specification and in the claims, do not have a sequential relationship, but are used merely to distinguish between two different elements having the same name. In addition, repeated symbols or letters may be used in different examples of the disclosure.

In embodiments, spatial correlation terms of relativity may be used, for example: the words "below …", "below", "above …", "above", and the like are used for convenience in describing the relationship of components or features to other components or features in the drawings. These spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. The device may be oriented in different directions (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

Embodiments of the present disclosure will now be described with reference to the accompanying drawings.

Fig. 1 is a perspective view of an optical assembly drive mechanism 1 and an optical assembly 2, according to some embodiments of the present disclosure. Fig. 2 is an exploded view of the optical module driving mechanism 1 in fig. 1. The optical device driving mechanism 1 includes a fixed portion P1, a movable portion P2 and a driving device 40. The movable part P2 moves relative to the fixed part P1 and carries an optical component 2 having an optical axis O defined as a virtual axis passing through the center of the optical component 2. The driving component 40 is used to drive the movable portion P2 to move relative to the fixed portion P1.

It should be noted that when the optical assembly 2, the optical assembly driving mechanism 1 and a photosensitive assembly (not shown) (e.g., a charge-coupled detector (CCD)) are aligned (aligned), the optical axis O of the optical assembly 2 also passes through the center of the optical assembly driving mechanism 1. In the partial drawings that do not show the optical assembly 2, the optical axis O is still shown to help explain the relevant features of the optical assembly driving mechanism 1.

In the present embodiment, the fixing portion P1 includes an outer frame 10, a frame 20 and a base 90. The movable portion P2 includes a first elastic element 30, a carrying seat 70, two second elastic elements 80 and a base 90, and the driving element 40 includes four magnetic elements 50 and coils 60, which can be added or deleted according to the user's requirement.

The outer frame 10, the frame 20, and the base 90 of the fixing portion P1 are sequentially arranged along the optical axis O. The outer frame 10 may be made of a metal material. The frame 20 includes a central opening 21. The outer frame 10 is located above the frame 20 and the base 90, and the outer frame 10 is connected to the base 90, and a space formed inside after the connection can accommodate the movable portion P2 and the driving assembly 40. For example, the carrier 70 can be elastically clamped by the first elastic element 30 and the second elastic element 80 and movably disposed in the central opening 21 of the frame 20.

The supporting base 70 has a through hole 71 for supporting the optical device 2, and a corresponding screw structure is disposed between the through hole 71 and the optical device 2, so that the optical device 2 is fixed on the supporting base 70.

By the clamping of the first elastic element 30 and the second elastic element 80, the carrying seat 70 does not directly contact the outer frame 10 and the base 90, and the moving range of the carrying seat 70 is also limited, so as to prevent the carrying seat 70 and the optical element 2 therein from being damaged due to collision with the outer frame 10 or the base 90 when the optical element driving mechanism 1 moves or is impacted by an external force. The first elastic element 30 and the second elastic element 80 may be made of a metal material.

The coil 60 is disposed around the carrier 70 to have a polygonal shape. In the present embodiment, the coil 60 has an octagonal shape, but the disclosure is not limited thereto. When the driving assembly 40 is powered on, an electromagnetic driving force is generated between the magnetic assembly 50 and the coil 60 to drive the carrier 70 and the optical assembly 2 therein to move.

In other embodiments of the present disclosure, the movable portion P2 further includes a sensed object and a sensor (not shown), the sensed object is disposed adjacent to the carrier 70, and the position of the sensor corresponds to the position of the sensed object. The sensed object may be a magnetic element, such as: and a magnet. The sensor may be a Giant Magnetoresistive (GMR) sensor or a Tunneling Magnetoresistive (TMR) sensor, etc. When the carriage 70 moves, the adjacent object to be sensed also moves along with the carriage 70, the magnetic field of the object to be sensed changes, and the position of the carriage 70 can be known by detecting the change of the magnetic field of the object to be sensed through the sensor, so as to adjust the position of the carriage 70 and precisely control the displacement of the carriage 70.

The base 90 of the fixing portion P1 includes an embedded component 100 and a base 130. The embedded component 100 is partially embedded in the base 130 (as shown in fig. 5). The embedded component 100 includes a reinforcing frame 110 and two circuit members 120. The reinforcing frame 110 has a plate-like structure with a through hole 111, and the optical axis O passes through the through hole 111. The two circuit members 120 are partially exposed from the base 130, and the reinforcing frame 110 and the circuit members 120 are electrically independent. The reinforcing frame 110 may be manufactured in an integrated manner with the circuit member 120 in the same process. The reinforcing frame 110 does not overlap the circuit member 120 as viewed in a direction parallel to the optical axis O. And the top surfaces of the reinforcing frame 110 and the circuit member 120 are located on the same plane. The structural strength of the optical component drive mechanism 1 can be reinforced by the reinforcing frame 110.

Fig. 3 is a perspective view of the embedded component 110. The embedded component 100 may be made of a metal material, such as: phosphor bronze. The embedded component 100 may also be made of a magnetic permeability material, which represents a material having magnetic permeability (magnetic permeability) and can be magnetized under an applied magnetic field, for example: ferromagnetic material, steel material (e.g., steel for general bending and press forming), iron (Fe), nickel (Ni), cobalt (Co), and alloy.

As shown in fig. 3, the reinforcing frame 110 is a ring-shaped closed structure, which may be bent without interruption or breaking, and surrounds the optical axis O. The closed structure can be in different shapes such as a circle or a rectangle. Because the reinforced frame 110 is a closed structure, when the optical device driving mechanism 1 is subjected to an external force, the reinforced frame 110 can uniformly distribute the force, thereby improving the structural strength of the base 90 and the overall pressure resistance of the optical device driving mechanism 1.

The reinforcing frame 110 includes four first protrusions 116, four second protrusions 117, and two third protrusions 118, all extending away from the optical axis O. The first protrusions 116 are arranged in a rotationally symmetrical manner, and the rotational symmetry represents that the reinforcing frame 110 is rotated by an angle of 360 °/n (n is a positive integer greater than 1) and then overlaps with the original reinforcing frame 110. For example, the four first protrusions 116 of the reinforcing frame 110 shown here may still coincide after being rotated 90 °. Furthermore, the second protrusions 117 may be arranged in a rotational symmetric manner, and the four second protrusions 117 of the reinforcing frame 110 shown here are overlapped after being rotated by 90 °. The force can be further evenly distributed by the rotationally symmetrical design.

The area of each first protruding portion 116 is different from the area of each second protruding portion 117 when viewed in a direction parallel to the optical axis O. In the present embodiment, the area of each first protruding portion 116 is larger than the area of each second protruding portion 117 as viewed in the direction parallel to the optical axis O. This is because the first protrusion 116 and the second protrusion 117 function differently. The first protrusion 116 corresponds to the outer frame 10 and contacts or is combined with the outer frame 10, and the second protrusion 117 is a position to be cut after the process of the reinforced frame 110 is completed, and can ensure the flatness of the reinforced frame 110 as a whole.

Fig. 4 is a side view of the optical assembly driving mechanism 1, in which the outer frame 10 is welded, fused or connected to the first protrusion 116 of the embedded assembly 100 by using a conductive resin material, so as to fix the outer frame 10 and the base 90, such that the outer frame 10 is firmly supported on the base 90, and compared with the case 10 and the base 90 bonded by glue, contamination can be avoided and cleanliness can be maintained.

Fig. 5 is a perspective view of the base 90. For clarity of illustration, the base 130 is shown in phantom. The two circuit members 120 are positive and negative electrodes, respectively, and are bent downward to protrude from the base 130. The base 130 further includes four protruding columns 131, and the third protruding portion 118 has a bending portion 1181 disposed on the protruding column 131 and electrically connected to the base 130. Part of the reinforcing frame 110 is disposed on the protruding pillar 131, so that the optical device driving mechanism 1 can bear more impact and improve the overall mechanical strength.

The arrangement of the magnetic component 50 and the embedded component 100 will be described with reference to fig. 6 and 7. Fig. 6 is a top view of the magnetic assembly 50 and the embedded assembly 100. Fig. 7 is a side view of the optical module driving mechanism 1. Magnetic attraction can be generated between the embedded component 100 and the magnetic component 50, and the embedded component 100 with the magnetic permeability material can concentrate the generated magnetic attraction. For example, if the magnetic element 50 is disposed on the outer frame 10, the magnetic attraction force generated by the magnetic element 50 disposed on the outer frame 10 and the embedded element 100 disposed on the base 90 can fix the outer frame 10 and the base 90, thereby enhancing the mechanical strength of the fixing portion P1.

In addition, a length L1 of the magnetic element 50 is generally greater than a length L2 of the first protrusion 116, and the length L1 of the magnetic element 50 is generally at least five times the length L2 of the first protrusion 116, so as to ensure the generated magnetic force.

In some embodiments, as shown in fig. 6 and 7, the magnetic element 50 partially overlaps the embedded element 100 when viewed in a direction parallel to the optical axis O. Because magnetic force is inversely proportional to the square of distance, such a configuration can reduce the distance between the magnetic element 50 and the embedded element 100 compared to a case where the magnetic element 50 and the embedded element 100 are not overlapped. As shown in fig. 7, the distance D between the magnetic component 50 and the embedded component 100 is preferably configured to be less than 1.5mm, so as to generate a greater magnetic force, which is beneficial to the connection and fixation of the outer frame 10 and the base 90.

It should be noted that if the magnetic attraction force generated by the magnetic element 50 and the embedded element 100 is greater than the weight of the outer frame 10 and other elements on the outer frame 10, or the magnetic attraction force generated by the magnetic element 50 and the embedded element 100 is greater than the weight of the base 90 and other elements on the base 90, the outer frame 10 and the base 90 can be more effectively combined by the magnetic attraction force without being separated by the weight of the internal elements of the optical element driving mechanism 1.

For example, before the optical device driving mechanism 1 is assembled, the frame 10 and the base 90 may be temporarily connected before the optical device driving mechanism is tested, and such temporary connection is called "dummy connection". In the dummy connection process, the optical unit drive mechanism 1 may be tested for inversion or the like. If the magnetic attraction is used for false connection, the process can be simplified and/or the optical assembly driving mechanism 1 can be kept clean.

Next, the structure of the second elastic member 80 will be described in detail in conjunction with fig. 8 and 9. Fig. 8 is a top view of second elastomeric assembly 80. Fig. 9 is a partial top view of second elastomeric assembly 80. The second elastic element 80 includes a fixed portion connecting portion 81, a movable portion connecting portion 82, and a deformation portion 83. The fixing portion connecting portion 81 is fixedly provided to the fixing portion P1, and for example, the fixing portion connecting portion 81 connects to the base 90 of the fixing portion P1. The movable portion connecting portion 82 is fixedly provided to the movable portion P2, for example: the movable portion connecting portion 82 is connected to the carrier 70 of the movable portion P2. The deformation portion 83 connects the fixed portion connecting portion 81 and the movable portion connecting portion 82. When the fixing portion connecting portion 81 is connected to the fixing portion P1 and the movable portion connecting portion 82 is connected to the movable portion P2, the second elastic element 80 is mainly extended or shortened by the deformation portion 83 to achieve the purpose of elastically clamping the carrier 70 with the first elastic element 30.

From Hooke's law, it can be known that, in the elastic range, the deformation of the elastic body and the external force present a linear relationship, and the ratio of the external force to the deformation is the elastic coefficient, i.e. the elastic coefficient is the external force required for deformation per unit length, and the larger the elastic coefficient, the harder the deformation is. The deformation portion 83 has an axial elastic coefficient and a lateral elastic coefficient, respectively defined as an elastic coefficient in a direction parallel to the optical axis O and an elastic coefficient in a direction perpendicular to the optical axis O. The lateral elastic coefficient is designed to be greater than the axial elastic coefficient, so that the second elastic element 80 is not easily deformed in a direction perpendicular to the optical axis O, and the second elastic element 80 is easily deformed in a direction parallel to the optical axis O, such a design can stably connect the fixed portion P1 and the movable portion P2, and can prevent the second elastic element 80 from being broken.

As shown in fig. 9, the deformation portion 83 includes a first step 831 and a second step 832 with different thicknesses, and for clarity, the first step 831 and the second step 832 are separated by a dotted line. The width of the first segment 831 is larger than the width of the second segment 832 when viewed in a direction parallel to the optical axis O. By thickening the first segment 831 connecting the fixed portion connecting portion 81 and the movable portion connecting portion 82 or thickening the first segment 831 between the second segments 832, stress can be dispersed, easily broken portions can be reinforced, lateral elastic modulus can be improved, and characteristics of the optical element driving mechanism 1 can be improved.

Next, please refer to fig. 9 and fig. 10 together to clearly understand other features of the second elastic element 80. Fig. 10 is a perspective view of the optical module driving mechanism 1 with a part of the components omitted. The second elastic element 80 is disposed on the base 130 and adjacent to the convex pillar 131. The second elastic element 80 further includes an electrical connection portion 86, a notch 87, a through hole 88 and an opening 89.

The electrical connection portion 86 is used for disposing an electrical connection material 140 so that the second elastic element 80 is electrically connected to the carrier 70. The electrical connection material 140 includes any material that can electrically connect components to each other. According to some embodiments of the present disclosure, if the electrical connecting material 140 has a curved shape, it can be more conveniently and more reliably disposed on the second elastic element 80. For example, the electrical connecting material is a solder ball. During the process of disposing the electrical connecting material 140, high temperature is usually required, and the time is relatively short, which may not exceed one second. The installation situation of the electrical connection material 140 can be observed through the notch 87, and can be adjusted appropriately according to the actually observed situation.

In the present embodiment, the electrical connection portion 86 includes an arc, and the angle of the arc is greater than one hundred eighty degrees, so that the electrical connection without a dead angle can be performed. As shown in fig. 10, when the electrical connection member 140 having a curved surface is disposed on the electrical connection portion 86, the curved surface corresponds to the arc of the electrical connection portion 86, so that the arc is filled with the electrical connection member 140 without dead space. If the electrical connection portion 86 is not a circular arc, a part of the space of the electrical connection portion 86 may not be disposed on the electrical connection material 140.

The through holes 88 are adjacent to the electrical connection portions 86, and in the electrical connection process at a high temperature, the through holes 88 can concentrate heat on the electrical connection portions 86, which is not only beneficial for electrical connection, but also prevents the second elastic element 80 from being deformed or damaged due to the conduction of a large amount of heat to other portions of the second elastic element 80.

The opening 89 faces the pillar 131 for disposing a connecting element 150 to connect the opening 89 and the pillar 131. For clarity of illustration, the assembly 150 is then shown in phantom. The component 150 may then be a plastic material or an insulating material. The opening 89 is used to arrange the connecting component 150 to increase the connecting area between the second elastic component 80 and the base 90, and no additional holes are required to be arranged on the second elastic component 80, so as to achieve the effect of miniaturization of the optical component driving mechanism 1.

Fig. 11 is a side view of the optical unit drive mechanism 1 with a part of the components omitted. As shown in fig. 11, the coil 60 is partially wound around the carrier 70 and includes an electrical contact 65 electrically connected to other components. The electrical contacts 65 are spaced apart from the electrical connection portions 86, and the electrical connection material 140 is partially located between the electrical contacts 65 and the electrical connection portions 86.

In addition, an adhesive material 160 may be disposed on the electrical connecting material 140 and the electrical contacts 65, and the adhesive material 160 may be an adhesive material or an insulating material to strengthen the contacts and reduce the possibility of dust entering the optical device driving mechanism 1. If the bonding material 160 is an insulating material, an insulating effect can be achieved.

Based on the disclosure, the embedded component has the advantages of miniaturization of the optical component driving mechanism and strengthened structural strength, and stress can be dispersed through special designs such as rotational symmetry and a closed structure. Moreover, the connection of the outer frame and the embedded component can simplify the manufacturing process, reduce the production cost and reduce the pollution. In addition, the elastic element has a special design, for example, the electrical connection portion can improve the connection with the electrical connection material, the gap can be observed by the electrical connection material, the through hole can avoid a large amount of heat conduction to the elastic element, and the like. In addition, the structural strength of the optical element driving mechanism can be increased by additionally arranging the bonding elements and/or bonding materials. It is noted that the embedded components or the elastic components can be used separately or combined.

The foregoing has outlined features of many embodiments so that those skilled in the art may better understand the disclosure from a variety of aspects. It should be appreciated by those skilled in the art that other processes and structures can be readily devised or modified based on the present disclosure, and thus, the same purposes and/or advantages as those of the embodiments described herein may be achieved. It should also be realized by those skilled in the art that such equivalent constructions do not depart from the spirit and scope of the invention as set forth in the appended claims. Changes, substitutions, and alterations are also possible without departing from the spirit and scope of this disclosure. In addition, the scope of the present disclosure is not limited to the specific embodiments described in the specification, each claim constitutes a separate embodiment, and the scope of the present disclosure also includes a combination of the respective claims and the embodiments.

Claims

1. An optical module drive mechanism, comprising:

a fixing part including a base;

a movable part moving relative to the fixed part and bearing an optical component with an optical axis;

the driving component drives the movable part to move relative to the fixed part;

wherein, this base still includes:

a base; and

the embedded component is partially embedded in the base and comprises a circuit component and a reinforced frame, wherein the reinforced frame is of a plate-shaped structure and is provided with a through hole, and the optical axis passes through the through hole;

wherein, when observing along the optical axis, the strengthening frame and the circuit component are not overlapped.

2. The optical device driving mechanism as claimed in claim 1, wherein the stiffener frame and the circuit member are electrically independent.

3. The optical device driving mechanism of claim 1, wherein the embedded component comprises a metallic material or a magnetically permeable material.

4. The optical device driving mechanism of claim 1, wherein the stiffener frame comprises an enclosure surrounding the optical axis.

5. The optical device driving mechanism of claim 1, wherein the stiffener frame further comprises a first protrusion extending away from the optical axis.

6. The optical device driving mechanism according to claim 5, wherein the reinforcing frame further comprises a second protrusion extending away from the optical axis, an area of the first protrusion being different from an area of the second protrusion when viewed in a direction parallel to the optical axis.

7. The optical device driving mechanism as claimed in claim 6, further comprising a frame, wherein the frame is connected to the first protrusion by welding or fusing, and the area of the first protrusion is larger than the area of the second protrusion when viewed along a direction parallel to the optical axis.

8. The optical device driving mechanism as claimed in claim 6, wherein the base further comprises a protrusion, and the stiffener frame further comprises a third protrusion having a bent portion disposed on the protrusion.

9. The optical assembly driving mechanism according to claim 1, wherein the stiffener frame further comprises a plurality of first protrusions arranged in a rotationally symmetric manner.

10. The optical device driving mechanism of claim 1, wherein the driving device further comprises a magnetic device disposed on the outer frame, the magnetic device partially overlapping the embedded device when viewed along a direction parallel to the optical axis.

11. An optical module drive mechanism, comprising:

a fixed part;

wherein, this movable part still includes:

the elastic component comprises an electrical connection part and a notch, and the electrical connection part comprises an arc; and

an electrical connecting material disposed on the electrical connecting portion and observed through the notch;

the angle of the arc is larger than one hundred and eighty degrees, and the electric connecting material is provided with a curved surface corresponding to the arc, so that the arc is filled with the electric connecting material.

12. The optical device driving mechanism as claimed in claim 11, wherein the driving device further comprises an electrical contact, the electrical contact is spaced apart from the electrical connection portion, and the electrical connection material is partially located between the electrical contact and the electrical connection portion.

13. The optical device driving mechanism as claimed in claim 11, wherein the resilient element further comprises a through hole adjacent to the electrical connection portion.

14. The optical device driving mechanism as claimed in claim 11, wherein the elastic element comprises a deformation portion, and the deformation portion comprises a first section and a second section, and the width of the first section is larger than the width of the second section when viewed along a direction parallel to the optical axis.

15. The optical device driving mechanism as claimed in claim 11, wherein the fixing portion further comprises a base, the base further comprises a post, the elastic device is disposed on the base and adjacent to the post, and the elastic device further comprises an opening facing the post.

16. The optical device driving mechanism as claimed in claim 15, further comprising a coupling member disposed at the opening and coupled to the opening and the post.

17. The optical device driving mechanism of claim 11, further comprising a bonding material, wherein the bonding material comprises an insulating material disposed on the electrical connecting material.

18. The optical device driving mechanism of claim 17, wherein the driving element further comprises an electrical contact, the adhesive material being disposed on the electrical contact.