CN112213839A - Voice coil motor carrier, voice coil motor, image pickup device and lens mounting method - Google Patents

Abstract

The invention provides a voice coil motor carrier, a voice coil motor, a camera device and a lens mounting method, wherein the voice coil motor carrier is used for bearing a lens, the voice coil motor carrier comprises a shell and a bearing body, the shell is provided with a first opening, the bearing body is arranged in the shell, the bearing body is provided with a second opening, the peripheral side of the second opening extends towards the axis direction of the second opening to form a limiting part, the limiting part is provided with a boss, the lens sequentially penetrates through the second opening and the first opening, the peripheral side of the lens is clamped in the limiting part and is also abutted against the boss, and a gap between the lens and the boss is filled with a glue layer. The voice coil motor carrier, the voice coil motor, the camera device and the lens mounting method effectively solve the problem that the inclination of the lens is influenced due to the fact that glue shrinks unevenly after being solidified at a constant temperature, and have the advantages that the connection between the bearing body and the lens is tight and the lens is small.

Description

Voice coil motor carrier, voice coil motor, image pickup device and lens mounting method

Technical Field

The invention relates to the technical field of photographic devices, in particular to a voice coil motor carrier, a voice coil motor, a photographic device and a lens mounting method.

Background

The miniature auto-focus camera generally comprises a voice coil motor and a lens, and the lens is driven to move along an optical axis of the lens by the voice coil motor so as to achieve the function of auto-focus or zooming.

The existing voice coil motor and the existing lens are generally assembled through a threaded structure, the threaded connection mode has specific standards for the number of thread meshing turns, and if the model selection has problems, the problems of focus running, optical axis inclination, field curvature and the like are easily caused. In addition, in the prior art, the lens and the voice coil motor are assembled in a dispensing manner, and the relative position of the lens and the voice coil motor after constant-temperature curing is directly influenced by the dispensing position, so that the inclination of the product is greatly influenced. The common dispensing method is to equally divide the contact area between the lens and the voice coil motor carrier into a plurality of equal parts, or draw a complete annular glue tape along the contact area.

In the process of implementing the present application, the inventor finds that at least the following problems exist in the prior art: in the existing glue dispensing mode, the moving speed and the glue discharging amount of a glue dispenser need to be accurately controlled, and once glue discharging is uneven, a lens can incline to a certain degree after the lens is assembled with a voice coil motor carrier. In addition, in order to achieve the dustproof effect, the conventional voice coil motor generally has a structure like a retaining wall, so that the overall size of the voice coil motor is increased, and the miniaturization of the structure is not facilitated.

Disclosure of Invention

In view of the above, it is desirable to provide a vcm carrier, a vcm, an image pickup apparatus and a lens mounting method, so as to solve the above problems.

The embodiment of the application provides a voice coil motor carrier for bear the camera lens, including casing and supporting body, the casing is equipped with first opening, the supporting body set up in the casing, the supporting body is equipped with the second opening, second open-ended week side extends to its axis direction and forms spacing portion, spacing portion is equipped with the boss, the camera lens passes in proper order the second opening reaches first opening, the week side card of camera lens is held in spacing portion, and the camera lens still support hold in the boss, the camera lens with it has the glue film to fill in the space between the boss.

The voice coil motor carrier extends to the axis direction of the voice coil motor carrier through the second opening periphery side to form a limiting part, and the limiting part is used for clamping the periphery side of the lens to effectively prevent impurities such as dust from entering the carrier, so that the imaging effect is improved; the boss is abutted to the lens, and the glue layer is filled in the gap between the boss and the lens, so that the problem that the inclination of the lens is influenced due to the uneven shrinkage of glue after constant-temperature curing is avoided, and the imaging quality is improved.

In some embodiments, the bosses are uniformly arranged on one side of the limiting part.

Therefore, the lens is convenient to support so that the stress of the lens is stable, and the boss is abutted against the lens so that the contact surface of the lens and the boss is parallel to the plane of the boss.

In some embodiments, the boss height is less than or equal to a set bondline thickness.

Therefore, if the height of the boss is larger than the set thickness of the glue layer, the lens cannot be completely bonded with the bearing body, and the height of the boss is smaller than or equal to the set thickness of the glue layer, so that the lens is completely bonded with the bearing body, and the tightness of connection between the lens and the bearing body is improved.

In some embodiments, two sides of the adhesive layer are respectively adhered to the lens and the carrier.

So, through the relative position of the fixed boss of glue film and camera lens, compare with current some glue modes, avoided glue shrink inhomogeneous influence camera lens slope's problem behind the constant temperature solidification.

In some embodiments, an observation port is disposed around the first opening for observing a carrier installed in the housing and measuring a tilt value between the lens and the carrier.

So, be convenient for observe the supporting body of installing in the casing and be convenient for measuring the camera lens with the tilt value between the supporting body to still be favorable to judging the problem of optical axis slope in the use.

In some embodiments, the observation opening includes a top edge and side edges connected to two ends of the top edge, the top edge is connected to the first opening edge through the side edges, a line connecting the center of the first opening and the midpoint of the top edge is taken as a normal line, and each side edge extends from the end of the top edge toward the first opening edge along a direction away from the normal line.

Thus, the observation visual angle is convenient to expand.

In some embodiments, the lens is provided with a step portion, the peripheral side of the step portion is clamped in the limiting portion, the step portion abuts against the boss, and the step portion is provided with a positioning opening for marking the position of the lens.

Therefore, impurities such as dust are effectively prevented from entering the bearing body, and deviation in the lens installation process is avoided.

The embodiment of the invention provides a voice coil motor which comprises a base, spring pieces, magnetic pieces, coils and the voice coil motor carrier, wherein the base is installed on one side of a shell, the spring pieces are oppositely arranged on two sides of a bearing body, the magnetic pieces are respectively arranged on the peripheral sides of the bearing body, the coils are sleeved on the bearing body, and the bearing body is controlled to move along an optical axis in the shell by electrifying the coils.

The voice coil motor has the advantages of miniaturization and clear and stable imaging. On the one hand, the mode of forming spacing portion is extended to its axis direction through voice coil motor carrier second opening week side to avoid installing the dust guard, has reduced shared volume among the voice coil motor, and then makes the voice coil motor miniaturized. The miniaturization of the voice coil motor is beneficial to reducing the thickness of the electronic equipment for installing the voice coil motor, so that the electronic equipment is lighter and thinner. On the other hand, on the shooting effect, support through the boss and hold in the camera lens to the contact surface that makes camera lens and boss is parallel with boss place plane, is filled with the glue film in the space between boss and the camera lens, and then has avoided glue to shrink inhomogeneous problem that influences the camera lens slope after the constant temperature solidification, improves the imaging quality, satisfies user's the experience of shooing.

The embodiment of the invention provides an image pickup device which comprises a protective shell and the voice coil motor, wherein the voice coil motor is installed in the protective shell.

The camera device has the advantages of miniaturization and clear and stable imaging. On the one hand, the miniaturization of the voice coil motor is beneficial to reducing the thickness of the electronic equipment for installing the voice coil motor, so that the electronic equipment is lighter and thinner. On the other hand, on the shooting effect, support through the boss and hold in the camera lens to the contact surface that makes camera lens and boss is parallel with boss place plane, is filled with the glue film in the space between boss and the camera lens, and then has avoided glue to shrink inhomogeneous problem that influences the camera lens slope after the constant temperature solidification, improves the imaging quality, satisfies user's the experience of shooing.

An embodiment of the present invention provides a lens mounting method, in which a lens is mounted in the voice coil motor carrier, including the following steps:

inverting the bearing body, and dispensing in the gaps among the bosses;

inserting the lens into the second opening, clamping the periphery of the lens at the limiting part, and abutting the lens against the boss to enable the glue to be adhered between the lens and the bearing body;

and forming an adhesive layer by ultraviolet curing and constant-temperature curing glue for mounting the lens on the bearing body.

The lens mounting method has the advantages of tight connection and convenience in mounting, and the boss is abutted against the lens, and the glue layer is filled in the gap between the boss and the lens, so that the problem that the inclination of the lens is influenced due to uneven shrinkage of glue after constant-temperature curing is avoided, the mounting is convenient, and the connection tightness between the lens and the boss is improved.

Drawings

Fig. 1 is a schematic structural diagram of a voice coil motor carrier according to an embodiment of the present invention.

Fig. 2 is a schematic cross-sectional view of a voice coil motor carrier according to an embodiment of the invention.

Fig. 3 is an exploded view of a voice coil motor carrier according to an embodiment of the present invention from a first perspective.

Fig. 4 is an exploded view of a voice coil motor carrier according to a second aspect of the present invention.

Fig. 5 is a flowchart illustrating a lens mounting method according to an embodiment of the present invention.

Description of the main elements

Voice coil motor carrier 100

Housing 10

Top plate 11

First opening 112

Observation port 114

Top edge 1142

Side 1144

Bump 116

Chamfer 118

Cavity 13

Carrier 20

Second opening 21

Stopper 22

Boss 222

Void 224

Mounting surface 24

Lens 30

Step 31

Positioning port 312

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.

The following disclosure provides many different embodiments or examples for implementing different features of the invention. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or uses of other materials.

Referring to fig. 1, a voice coil motor carrier 100 according to an embodiment of the present invention is used for carrying a lens 30. The voice coil motor carrier 100 includes a housing 10 and a carrier 20. The carrier 20 is mounted in the housing 10, the lens 30 is mounted in the carrier 20 and the lens 30 protrudes out of the housing 10. The carrier 20 moves in the housing 10 and drives the lens 30 to move, thereby achieving the function of controlling the focusing of the lens 30 to make the image clear.

Referring to fig. 3, the housing 10 includes a top plate 11 and a side plate 12 connected to the top plate 11. The side plates 12 enclose a cavity 13, and the cavity 13 is used for accommodating the carrier 20 and the lens 30. The top plate 11 is provided with a first opening 112, and the first opening 112 is used for passing through the lens 30. The first opening 112 is circumferentially provided with an observation port 114 for observing the carrier 20 installed in the cavity 13 and facilitating measurement of the tilt value between the lens 30 and the carrier 20, and also facilitating determination of the tilt of the optical axis during use. In some embodiments, the first opening 112 is circular, the observation ports 114 are uniformly arranged on the periphery of the first opening 112 along the circumferential direction, and the number of the observation ports 114 is three, so as to facilitate the observation of three viewing angles of the carrier 20 installed in the cavity 13. It is understood that in other embodiments, the number of observation ports 114 may be one, two, or more than three.

In some embodiments, the viewing port 114 includes a top edge 1142 and side edges 1144 connected to both ends of the top edge 1142. Top edge 1142 is curved, and top edge 1142 is connected to the edge of first opening 112 by side edge 1144. Taking a line connecting the center of the first opening 112 and the midpoint of the top edge 1142 as a normal, each side edge 1144 extends from the end of the top edge toward the edge of the first opening 112 along a direction away from the normal to expand the viewing angle. It will be appreciated that in other embodiments, the top edge 1142 is linear.

Referring to fig. 4, the top corners of the top plate 11 are respectively provided with a protrusion 116 facing the cavity 13, and a chamfer 118 corresponding to the protrusion 116 is disposed on a side of the top plate 11 away from the cavity 13. The bump 116 is used for fixing the required components of the voice coil motor part, and the space between the bump 116 and the chamfer 118 is used for accommodating the required components of the voice coil motor part, so that the voice coil motor part is convenient to mount. In some embodiments, the top plate 11 has a rectangular shape, and four corners of the top plate 11 are respectively provided with four protrusions 116 having a right triangle shape. The hypotenuse of chamfer 118 coincides with the hypotenuse of the right triangle of tab 116.

Referring to fig. 3, the carrier 20 is disposed in the cavity 13 for fixing the lens 30. The carrier 20 is provided with a second opening 21, and the second opening 21 is circular and is coaxially arranged with the first opening 112 to facilitate the movement of the lens 30. The peripheral side of the second opening 21 extends to the axial direction to form a limiting part 22, and the limiting part 22 is used for clamping the peripheral side of the lens 30, thereby effectively blocking impurities such as dust and the like from entering the carrier 20 and further improving the imaging effect. Compare with the current mode that sets up the dust guard, spacing portion 22 occupies the volume littleer, and then realizes the voice coil motor carrier 100 miniaturization. In some embodiments, the retaining portion 22 protrudes from the surface of the carrier 20 and is circular to facilitate installation. It will be appreciated that in other embodiments, the plane of the retaining portion 22 is flush with the surface of the carrier 20.

Referring to fig. 4, a boss 222 is disposed on one side of the position-limiting portion 22, and the bosses 222 are uniformly disposed on one side of the position-limiting portion 22. The boss 222 abuts against the lens 30, so that the contact surface between the lens 30 and the boss 222 is parallel to the plane of the boss 222, thereby structurally avoiding the problem of inclination of the lens 30 and improving the imaging quality. In some embodiments, the bosses 222 are uniformly disposed on one side of the limiting portion 22 along the circumferential direction, and the number of the bosses 222 is three, so as to stably support the lens 30 and stabilize the stress on the lens 30. It is understood that in other embodiments, the number of observation ports 114 may be two or more than three.

Referring to fig. 2, the height of the boss 222 is less than or equal to a predetermined thickness of the glue layer, which is a theoretical thickness of the glue layer at the position of the boss 222. If the height of the projection 222 is greater than the set glue line thickness, the lens 30 and the carrier 20 cannot be completely bonded. The space 224 between the boss 222 and the lens 30 is filled with a glue layer, and two sides of the glue layer are respectively adhered between the lens 30 and the carrier 20 to fix the relative positions of the boss 222 and the lens 30. Compared with the existing dispensing mode, the problem that the lens inclination is affected due to uneven shrinkage of glue after constant-temperature curing is avoided by filling the glue layer in the gap 224 between the boss 222 and the lens 30.

And an accommodating cavity is also arranged between the peripheral side of the bearing body 20 and the cavity 13 and is used for accommodating components required by the voice coil motor part. The carrier 20 is further provided with a plurality of mounting surfaces 24, the mounting surfaces 24 correspond to the polygonal space formed by the side plates 12 and the bumps 116, and each mounting surface 24 is parallel to the plane of the corresponding side plate 12 or the plane of the oblique side of the bump 116, so that the carrier 20 can move in the cavity 13. In some embodiments, the side panels 12 and the protrusions 116 form an octagonal space, such that the carrier body 20 has eight mounting surfaces 24, and the cross-section of the carrier body 20 is generally octagonal.

Referring to fig. 3, the lens 30 sequentially passes through the second opening 21 and the first opening 112, the circumference of the lens 30 is held in the position-limiting portion 22, the lens 30 abuts against the boss 222, and a gap 224 between the boss 222 and the lens 30 is filled with a glue layer to fix the relative position of the boss 222 and the lens 30. Specifically, the lens 30 is provided with the step portion 31, the periphery of the step portion 31 is held in the second opening 21, the step portion 31 abuts against the boss 222, and the step portion 31 and the boss 222 are connected through a glue layer.

The peripheral side of the step portion 31 is further provided with a positioning opening 312 for marking the position of the lens 30 in the installation process, so as to play a role of optical fool-proofing and avoid the deviation of the lens 30 in the installation process. Furthermore, the positioning port 312 can be observed through the observation port 114, which facilitates the observation of the position of the lens 30 during the use process.

The voice coil motor carrier 100 of the embodiment of the invention is provided with the observation port 114 on the periphery of the first opening 112, so as to observe the carrier 20 installed in the cavity 13, facilitate the measurement of the inclination value between the lens 30 and the carrier 20, and also facilitate the judgment of the inclination of the optical axis in the using process; the limiting part 22 is formed by extending the peripheral side of the second opening 21 to the axial direction thereof, and the limiting part 22 is used for clamping the peripheral side of the lens 30, thereby effectively blocking impurities such as dust and the like from entering the carrier 20 and further improving the LCB imaging effect; the boss 222 abuts against the lens 30, so that the contact surface of the lens 30 and the boss 222 is parallel to the plane of the boss 222, and a glue layer is filled in the gap 224 between the boss 222 and the lens 30, thereby avoiding the problem that the lens is inclined due to uneven shrinkage of glue after constant temperature curing and improving the imaging quality; the positioning opening 312 is further disposed on the peripheral side of the step portion 31 for marking the position of the lens 30 in the installation process, so as to play a role of optical fool-proofing and avoid the deviation of the lens 30 in the installation process.

The vcm of the embodiment of the invention comprises the vcm carrier 100, a base, a spring plate, a magnetic member and a coil, wherein the base is installed at one side of the housing 10, the spring plate is oppositely disposed at two sides of the carrier 20, the magnetic member is respectively disposed at the peripheral sides of the carrier 20, the coil is sleeved on the carrier 20, and the carrier 20 is electrically controlled by the coil to drive the lens 30 to move along the optical axis in the housing 10.

The voice coil motor provided by the embodiment of the invention has the advantages of miniaturization and clear and stable imaging. On one hand, the dust-proof plate is prevented from being installed by the way that the circumferential side of the second opening 21 of the voice coil motor carrier 100 extends to the axis direction thereof to form the limiting part 22, so that the occupied volume of the voice coil motor is reduced, and the voice coil motor is further miniaturized. The miniaturization of the voice coil motor is beneficial to reducing the thickness of the electronic equipment for installing the voice coil motor, so that the electronic equipment is lighter and thinner. On the other hand, in the shooting effect, the boss 222 abuts against the lens 30, so that the contact surface between the lens 30 and the boss 222 is parallel to the plane where the boss 222 is located, and a glue layer is filled in the gap 224 between the boss 222 and the lens 30, thereby avoiding the problem that the lens is inclined due to uneven shrinkage of glue after constant-temperature curing, improving the imaging quality and meeting the shooting experience of a user.

The camera device comprises the voice coil motor and the protective shell, wherein the voice coil motor is arranged in the protective shell and used for driving the lens 30 to move, so that the function of controlling the lens 30 to focus is realized, and imaging is clear. The electronic device 1000 according to the embodiment of the present invention includes, but is not limited to, imaging-enabled electronic devices such as smart phones, car lenses, monitoring lenses, tablet computers, notebook computers, electronic book readers, portable multimedia players, portable phones, video phones, digital still cameras, mobile medical devices, wearable devices, and the like.

The camera device of the embodiment has the advantages of miniaturization and clear and stable imaging. On the one hand, the miniaturization of the voice coil motor is beneficial to reducing the thickness of the electronic equipment for installing the voice coil motor, so that the electronic equipment is lighter and thinner. On the other hand, in the shooting effect, the boss 222 abuts against the lens 30, so that the contact surface between the lens 30 and the boss 222 is parallel to the plane where the boss 222 is located, and a glue layer is filled in the gap 224 between the boss 222 and the lens 30, thereby avoiding the problem that the lens is inclined due to uneven shrinkage of glue after constant-temperature curing, improving the imaging quality and meeting the shooting experience of a user.

Referring to fig. 5, the lens mounting method according to the embodiment of the invention for mounting the lens on the voice coil motor carrier 100 includes the following steps:

s1, inverting the carrier 20 and dispensing in the gaps 224 between the bosses 222;

s2, inserting the lens 30 into the second opening 21, wherein the periphery of the lens 30 is clamped on the position-limiting part 22, and the lens 30 is abutted against the boss 222 and the glue is adhered between the lens 30 and the carrier 20;

s3, forming a glue layer by uv curing and constant temperature curing glue, so as to mount the lens 30 on the carrier 20.

In some embodiments, S1 further includes mounting the carrier 20 in the housing 10, and mounting other components of the voice coil motor between the housing 10 and the carrier 20, such as a coil and a spring plate, the spring plate is disposed opposite to the carrier 20, and the coil is disposed on the carrier 20 to move the carrier 20 in the housing 10.

In some embodiments, S25 is further included between S2 and S3, identifying the positioning opening 312 on the step 31 of the lens 30, marking the position of the lens 30, capturing the lens 30 to one end of the carrier 20 and aligning the lens 30 with the second opening 21.

The lens mounting method of the embodiment has the advantages of tight connection and convenience in mounting. On one hand, the boss 222 is abutted against the lens 30, and the gap 224 between the boss 222 and the lens 30 is filled with a glue layer, so that the problem that the inclination of the lens is influenced due to uneven shrinkage of the glue after constant temperature curing is avoided, the installation is convenient, and the connection tightness between the lens 30 and the boss 222 is improved. On the other hand, the position of the lens 30 is marked by identifying the positioning hole 312 on the step part 31 of the lens 30, so that the optical fool-proof effect is achieved, the deviation in the installation process of the lens 30 is avoided, and the installation is convenient.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Finally, it should be noted that the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.

Claims (10)

1. A voice coil motor carrier for carrying a lens, comprising:

a housing provided with a first opening; and

the bearing body is arranged in the shell and provided with a second opening, the peripheral side of the second opening extends towards the axis direction of the second opening to form a limiting part, and the limiting part is provided with a boss;

the camera lens passes in proper order the second opening reaches first opening, the week side card of camera lens is held in spacing portion, and the camera lens still support hold in the boss, the camera lens with it has the glue film to fill in the space between the boss.

2. The voice coil motor carrier as claimed in claim 1, wherein the bosses are uniformly disposed on one side of the position-limiting portion.

3. The voice coil motor carrier of claim 1, wherein the boss height is less than or equal to a set glue line thickness.

4. The voice coil motor carrier of claim 1, wherein two sides of the adhesive layer are adhered to the lens and the carrier respectively.

5. The voice coil motor carrier as claimed in any one of claims 1 to 4, wherein the first opening is circumferentially provided with an observation port for observing a carrier mounted in the housing and measuring a tilt value between the lens and the carrier.

6. The voice coil motor carrier as claimed in claim 5, wherein the observation opening comprises a top edge and side edges connected to two ends of the top edge, the top edge is connected to the first opening edge through the side edges, a line connecting the center of the first opening and the midpoint of the top edge is taken as a normal, and each side edge extends from the end of the top edge to the first opening edge along a direction away from the normal.

7. The voice coil motor carrier as claimed in any one of claims 1 to 4, wherein the lens is provided with a step portion, the peripheral side of the step portion is clamped in the limiting portion, the step portion abuts against the boss, and the step portion is provided with a positioning opening for marking the position of the lens.

8. A voice coil motor, comprising a base, a spring plate, magnetic members and a coil, characterized in that, it further comprises a voice coil motor carrier as claimed in any one of claims 1 to 7, the base is mounted on one side of the housing, the spring plate is oppositely disposed on two sides of the supporting body, the magnetic members are respectively disposed on the peripheral sides of the supporting body, the coil is sleeved on the supporting body, and the supporting body is controlled by energizing the coil to move along the optical axis in the housing.

9. An image pickup apparatus comprising a protective case and the voice coil motor according to claim 8, wherein the voice coil motor is mounted in the protective case.

10. A lens mounting method for mounting a lens in a voice coil motor carrier according to any one of claims 1 to 7, comprising the steps of:

inverting the bearing body, and dispensing in the gaps among the bosses;

inserting the lens into the second opening, clamping the periphery of the lens at the limiting part, and abutting the lens against the boss to enable the glue to be adhered between the lens and the bearing body;

and forming an adhesive layer by ultraviolet curing and constant-temperature curing glue for mounting the lens on the bearing body.

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