KR101862391B1 - Camera module - Google Patents

Abstract

The present invention relates to a camera module.
That is, the camera module of the present invention includes: a lens barrel including a plurality of lenses for entering an optical image of a subject; An actuator including a bobbin coupled with the lens barrel, and a coil wound around a circumferential surface of the bobbin; A printed circuit board disposed below the lens barrel and provided with an image sensor for converting the optical image into an electrical signal; A base provided on the printed circuit board to support the actuator and the lens barrel, the projection of the bobbin being in contact with the actuator, and a window through which the optical image emitted from the lens passes, Wherein a double stepped portion is formed in a window of the base, an adhesive is interposed between the double stepped portion and the infrared filter to adhere the infrared filter to the base, and the adhesive is adhered to the side edge of the infrared filter .

Description

Camera module {Camera module}

The present invention relates to a camera module.

As the spread of various portable terminals is widely popularized and the wireless Internet service is commercialized, the demands of consumers related to portable terminals are diversified. Accordingly, various kinds of additional devices are installed in portable terminals.

Among them, a camera module is a representative example in which a subject is photographed as a photograph or a moving image, and the image data thereof is stored and then edited and transmitted as necessary.

2. Description of the Related Art In recent years, there has been an increasing demand for a small camera module for various multimedia fields such as a notebook type personal computer, a camera phone, a PDA, a smart, and a toy, and furthermore for an image input device such as an information terminal of a surveillance camera or a video take recorder.

As the pixel size of the sensor applied to the camera module is reduced and the height of the module is lowered, management of the foreign matter is controlled and the mechanical reliability of the camera module such as tilt or shift of the lens optical axis is secured The development of a mounting structure for a vehicle is becoming an important issue.

At present, the most important influence on the reliability of the camera module is the holder, which mechanically connects the lens barrel to the sensor and protects the sensor from foreign substances and other impacts.

On the other hand, in order to fasten the lens and the holder, a screw coupling method is used. However, foreign matter generated due to the friction of the thread during screw connection falls into the holder, resulting in a defect caused by foreign matter.

SUMMARY OF THE INVENTION The present invention provides a protrusion capable of reducing the flow of a foreign matter, thereby solving a problem that it is possible to reduce occurrence of unevenness in an image photographed by a camera module.

According to the present invention,

A lens barrel including a plurality of lenses for entering an optical image of a subject;

An actuator including a bobbin coupled with the lens barrel, and a coil wound around a circumferential surface of the bobbin;

A printed circuit board disposed below the lens barrel and provided with an image sensor for converting the optical image into an electrical signal;

A base provided on the printed circuit board to support the actuator and the lens barrel, the projection of the bobbin being in contact with the actuator, and a window through which the optical image emitted from the lens passes, / RTI >

Wherein a double stepped portion is formed in a window of the base, an adhesive is interposed between the double stepped portion and the infrared filter, the infrared filter is adhered to the base, and the adhesive is applied to the side edge of the infrared filter A camera module is provided.

In an embodiment of the present invention, the double stepped portion may be formed in the base region facing the image sensor.

In addition, the double stepped portion may be formed in the base region facing the lens.

The double stepped portion may include a first stepped portion; And a second stepped portion connected to the first stepped portion.

Further, a protrusion may be further formed on the base adjacent to the double stepped portion.

Further, a pressure-sensitive adhesive capable of collecting foreign matter may be further formed in the space formed by the projecting portion and the base.

Further, a protrusion may be further formed around the window.

Further, an adhesive may be further applied to the projecting portion and the base surface.

Further, a protrusion is formed in a peripheral region of the region of the base where the protrusion of the bobbin is in contact with, the protrusion being capable of holding a foreign substance generated when the protrusion comes into contact with the base, and the protrusion is contacted with the protrusion of the bobbin Surrounding the region of the base.

In addition, a protrusion may be further formed around the window.

Further, a pressure-sensitive adhesive capable of collecting foreign matter may be further applied to the space formed by the projecting portion and the base.

In addition, a protrusion that surrounds the region of the base where the protrusion of the bobbin comes in contact with the protrusion that is formed around the window may be connected.

In addition, one or both of the upper elastic member mounted on the case and the lower elastic member mounted on the base may be included so that the lens barrel and the bobbin move along the optical axis direction by the operation of the actuator and then return to the circular state And the projection of the bobbin may be in contact with the upper elastic member or the lower elastic member.

A barrier for separating the inside and the outside of the camera module may be formed on the outer side of the base surface.

In addition, the protrusion may be structured to be connected to the barrier so as to enclose a contact area between the protrusion and the base of the bobbin.

The protrusion may be configured to surround a contact area between the protrusion of the bobbin and the base spaced from the barrier.

Further, a foreign matter collecting groove capable of collecting foreign matter may be further included on the base surface inside the protrusion.

The projection of the bobbin can be brought into contact with the bottom surface of the foreign matter collecting groove.

The foreign matter collecting groove may be formed on a base surface inside the protrusion other than a contact area between the protrusion and the base of the bobbin.

In addition, the foreign matter collecting groove may be a V-groove.

A first groove is formed in the base surface, a second groove is formed in the first groove, a projection of the bobbin is in contact with the second groove, and the first groove and the second groove Is located inside the projection.

The pressure sensitive adhesive is spaced apart from the contact area by a predetermined distance so as not to come into contact with the protrusion of the bobbin in the contact area of the base where the protrusion of the bobbin contacts.

In addition, the contact area of the base, on which the protrusion of the bobbin is in contact, may be spaced apart from the pressure sensitive adhesive so as not to come into contact with the protrusion of the bobbin.

Further, a pressure-sensitive adhesive may be formed on the base surface outside the projecting portion.

Further, a step may be formed between the contact area of the base, to which the protrusion of the bobbin is in contact, and the pressure sensitive adhesive, to prevent the pressure sensitive adhesive from flowing into the contact area of the base where the protrusion of the bobbin comes into contact.

Further, in the entire base region, there are a plurality of regions of the base where the projections of the bobbins contact, and the projections may be formed corresponding to each of the base regions to which the projections of the bobbins are contacted.

The camera module according to the present invention is characterized in that a double stepped portion is formed on the base and the infrared filter is adhered to the base with an adhesive interposed between the stepped portion and the infrared filter to adhere the side surface of the infrared filter to the adhesive, It is possible to prevent particles from falling off from the side surface and to reduce contamination of the image sensor.

In addition, the camera module according to the present invention can form a protrusion that can reduce the flow of foreign matter in the peripheral region of the region of the base where the bobbin protrusions are contacted, There is an effect.

1 is a schematic cross-sectional view of a camera module according to an embodiment of the present invention;
2A and 2B are schematic cross-sectional views of a portion of a camera module according to an embodiment of the present invention
3 is a schematic partial cross-sectional view for explaining the structure of a camera module according to a comparative example of the present invention
4A and 4B are schematic partial cross-sectional views illustrating a structure of a camera module according to an embodiment of the present invention
5 is a schematic partial cross-sectional view for explaining another structure of a camera module according to an embodiment of the present invention
6 is a schematic plan view for explaining the region of the base where the projection of the bobbin of the camera module is contacted according to the embodiment of the present invention
7A and 7B are schematic cross-sectional views illustrating a protrusion formed on a base of a camera module according to an embodiment of the present invention
8 is a partial cross-sectional view showing a state where a foreign matter collecting groove is formed in a base region of a camera module according to an embodiment of the present invention
9 is a partial cross-sectional view showing a protrusion made of a different material of the camera module according to the embodiment of the present invention
10 is a partial cross-sectional view showing a state where another foreign matter collecting groove is formed in the base region of the camera module according to the embodiment of the present invention
11 is a partial cross-sectional view showing a state in which a pressure-sensitive adhesive for collecting foreign matter is formed in a base region of a camera module according to an embodiment of the present invention

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

The sizes and shapes of the components shown in the drawings may be exaggerated for clarity and convenience. In addition, terms specifically defined in consideration of the structure and operation of the present invention may vary depending on the intention or custom of the user, the operator. Definitions of these terms should be based on the content of this specification.

FIG. 1 is a schematic cross-sectional view of a camera module according to an embodiment of the present invention, and FIGS. 2a and 2b are schematic cross-sectional views of a part of a camera module according to an embodiment of the present invention.

1, the camera module 100 of the present invention includes a case 10, a lens barrel 30, an actuator 40, a base 60, an infrared filter 70, an image sensor 80, And includes components of the printed circuit board 90.

The actuator 40 is a moving part that moves the lens barrel 30 along the optical axis direction O for auto focusing and the actuator 40 is a voice coil motor ) Can be applied.

The actuator 40 includes a bobbin 41, a coil 42, a permanent magnet 43, and a yoke 44.

The camera module 100 according to the present invention includes a double stepped portion 67 formed on a base 60 to which the infrared ray filter 70 is adhered and the double stepped portion 67 and the infrared ray filter 70 The infrared filter 70 is adhered to the base 60 with an adhesive 200 interposed therebetween.

Therefore, in operation of the camera module 100 of the present invention, there is an advantage that the contamination of the image sensor 80 is fundamentally blocked by particles generated from the side surface of the infrared filter 70.

As described above, the camera module of the present invention includes: a lens barrel 30 including a plurality of lenses into which an optical image of a subject is incident; An actuator 40 including a bobbin 41 coupled to the lens barrel 30 and a coil 42 wound around the bobbin 41; A printed circuit board (90) disposed below the lens barrel (30) and provided with an image sensor (80) for converting the optical image into an electrical signal; A window that is installed on the printed circuit board 90 and supports the actuator 40 and the lens barrel 30 and through which the optical image emitted from the lens passes through the actuator 40 A base 60 formed thereon; And an infrared filter 70 disposed between the lens barrel 30 and the image sensor 80 and adhered to the base 60. The window 60 of the base 60 to which the infrared filter 70 is adhered A stepped portion 67 is formed in the stepped portion 67 and an adhesive 200 is interposed between the double stepped portion 67 and the infrared filter 70 so that the infrared filter 70 is attached to the base 60 And the pressure sensitive adhesive is applied to the side edge of the infrared filter.

Here, the double stepped portion 67 may be formed in a region opposite to the image sensor 80, which is opposite to the region where the projection of the bobbin 41 contacts.

Conversely, the double stepped portion 67 may be formed in a region opposite to the image sensor 80, which is the same side of the region where the projection of the bobbin 41 contacts.

The double stepped portion 67 is composed of a first stepped portion 67a and a second stepped portion 67b connected to the first stepped portion 67a.

The infrared filter 70 is in contact with the bottom surface of the first stepped portion 67a so that the infrared filter 70 is positioned on the side wall of the first stepped portion 67a and the side wall of the second stepped portion 67a, And the infrared filter 70 is adhered to the base 60 by filling the space with the adhesive 200. In this case,

At this time, the side surface of the infrared ray filter 70 is adhered to the adhesive 200 to prevent the particles from falling off from the side surface of the infrared ray filter 70.

The camera module 100 according to the present invention is characterized in that when the bobbin 41 is moved upward or downward in the optical axis direction O for autofocusing, .

Here, the protrusion may be defined as a region protruding from the end of the bobbin 41. [

At this time, due to the force of the protrusion contacting the base 60, the protrusion and the contact area of the base 60 are broken to generate particles, and these particles become foreign matter of the camera module 100.

The foreign substances generated by the projection in contact with the base 60 flows inside the camera module 100 and acts as a contamination source for generating stains on the image photographed by the camera module.

Therefore, the camera module 100 of the present invention may form the third protrusion 62 in the area around the area 61 of the base 60 where the protrusion of the bobbin 41 contacts.

The third protrusion 62 surrounds the region 61 of the base 60 to which the protrusion of the bobbin 41 contacts and the foreign matter generated by the protrusion coming into contact with the base 60, (61) of the base (60) where the protrusions of the base (41) are in contact.

A barrier 63 separating the inner side and the outer side of the camera module is formed on the outer side of the base 60 surface. In the structure of FIG. 1, a gap between the third projection 62 and the barrier 63 The protrusions of the bobbin 41 are brought into contact with the space, and the protrusions are brought into contact with the base 60, so that the foreign substances generated are trapped in the space.

More specifically, the third protrusion 62 surrounds the region 61 of the base 60 to which the protrusion of the bobbin 41 is contacted.

The third projection 62 separates the space corresponding to the region 61 of the base 60 to which the projection of the bobbin 41 is in contact from an external space such as another region of the base 60 .

Accordingly, the foreign substances generated by the protrusions contacting the base 60 can be prevented from being damaged by the third protrusions 62, such as a barrier, in a region of the base 60 in contact with the protrusions of the bobbin 41 (61) and does not flow into an outer space such as another area of the base (60). In other words, the IR filter prevents movement.

In the camera module according to the present invention, the entire region of the base 60 may have a plurality of regions 61 of the base 60, which are in contact with the projections of the bobbin 41, The protrusions 62 are formed corresponding to the regions 61 of the base 60 to which the protrusions contact.

Therefore, the third protrusions 62 formed in each of the regions 61 of the base 60 in contact with the protrusions of the bobbin 41 may be spaced apart from each other or connected to each other.

As a result, the third protrusion 62 applied to the camera module of the present invention is characterized in that the foreign object generated when the protrusion contacts the base 60 is not moved to the outside.

The camera module 100 according to the present invention is provided with a third protrusion 62 capable of reducing the flow of foreign matter in the peripheral region of the region 61 of the base 60 in contact with the protrusion of the bobbin 41 So that it is possible to reduce the occurrence of unevenness in the image photographed by the camera module 100.

As a result, the camera module 100 of the present invention can be mounted on the peripheral region of the region of the base 60 in contact with the protrusion of the bobbin 41 so that the protrusion contacts the base 60, The third projection 62 is formed.

On the other hand, the bobbin 41 has a cylindrical shape with open top and bottom, and has an inner peripheral surface formed with a thread corresponding to the thread of the lens barrel 30. The lens barrel 30 is screwed to the inner circumferential surface of the bobbin 41.

On the circumferential surface of the bobbin 41, the coil 42, which interacts with the permanent magnet 43, is wound in a direction perpendicular to the magnetic flux.

The yoke 44 is inserted into the case 10 to prevent a magnetic field between the coil 42 and the permanent magnet 43 from flowing out to the outside. The permanent magnet 43 is inserted into the bobbin 41 on the inner side of the yoke 44 so as to face each other. The yoke (44) is supported by the base (60).

When a voltage is applied to the coil 42, the current flowing through the coil and the magnetic field of the permanent magnet 43 interact with each other (the Fleming's left-hand rule), and the bobbin 41 receives a force upward in the optical axis direction. At this time, the greater the intensity of the current applied to the coil 42, the greater the distance that the lens barrel 30 and the bobbin 41 move upward along the optical axis direction.

2A, the camera module 100 according to the present invention is configured such that the lens barrel 30 and the bobbin 41 are moved along the optical axis direction, The lower cushioning member 50 can be mounted to the base 60 as shown in Fig. 2B.

The protrusion of the bobbin 41 is in contact with the upper cushioning member 20 or the lower cushioning member 50.

Here, additional parts may be interposed between the upper cushioning member 20 and the case 10.

Therefore, when the voltage applied to the coil 42 is cut off, the elastic force of the upper elastic member 80 and the lower elastic member 81 causes the lens barrel 30 and the bobbin 41 to move in the optical axis direction And then moves back to the original state.

The case 10 is in the form of a hexahedron having an open bottom, and a light transmission hole is formed in an upper central portion thereof. The lower portion of the case 10 is supported by the base 60.

The case 10 is coupled with the base 60 to form a space and the space includes the upper elastic member 80, the lens barrel 30, the actuator 40, and the IR filter 70 do.

The case 10 is preferably made of plastic for insulation between the inside and the outside, and may be injection molded for mass production.

The upper elastic member 80 is inserted into the upper portion of the case 10 as a leaf spring and the outer side is supported by the yoke 44 of the actuator 40 and the inner side is supported by the bobbin 41 so that the upper side of the bobbin 41 is pressed.

The lower elastic member 81 is positioned below the actuator 40 as a leaf spring to press the lower side of the bobbin 41.

The lower buffer member 50 may be insert-injected from the bobbin 41 or may be bonded to the bobbin 41 with a bond.

The lens barrel 30 is a means for fixing and protecting a plurality of lenses. Inside the lens barrel 30, a plurality of lenses capable of entering a light image of a subject are sequentially stacked along the optical axis direction O have.

An image sensor 80 for converting an optical image into an electrical signal is mounted on the printed circuit board 90. The base 60 has a central opening through which the optical image can pass through the image sensor 80 The base 60 is disposed in a lower portion of the lens barrel 30 and is equipped with the infrared filter 70 for filtering infrared rays.

The image sensor 80 is positioned below the lens barrel 30 and on the printed circuit board 90 to convert optical images incident through the plurality of lenses into electrical signals.

The printed circuit board 90 is a flexible printed circuit board (FPCB) having a good flatness. The printed circuit board 90 is provided with means (not shown) connected to an external device at an extended portion of the FPCB.

As described above, the bobbin 41 of the present invention is supported by the elastic force of the upper elastic member 80 and the lower elastic member 81.

The camera module applied to the present invention is not limited to the structure shown in FIG. 1, and may include camera modules having various structures.

In the camera module according to the present invention, protrusions may be further formed around the window of the base 60 to which the protrusions of the bobbin 41 contact.

That is, the protrusions are formed on the surface of the base 60 to which the protrusions of the bobbin 41 contact, and are formed along the entire circumference of the window. The protrusions are formed between the base 60 and the window .

Therefore, the protrusion formed around the window of the base 60 functions to prevent foreign matter and other foreign matter generated by the projection of the bobbin 41 from being infiltrated into the window region.

A pressure sensitive adhesive may be further applied to the protrusion formed around the window of the base 60 and the surface of the base 60 to which the protrusion of the bobbin 41 comes into contact.

A protrusion that surrounds the area of the base 60 where the protrusion of the bobbin 41 contacts and a protrusion that is formed around the window may be connected.

FIG. 3 is a schematic partial cross-sectional view for explaining a camera module structure according to a comparative example of the present invention, FIGS. 4A and 4B are schematic partial sectional views for explaining a camera module structure according to an embodiment of the present invention, 5 is a schematic partial cross-sectional view for explaining another structure of a camera module according to an embodiment of the present invention.

The camera module structure according to the comparative example of the present invention is such that the adhesive 200 is not applied to the side edge area of the infrared filter 70 and the adhesive 200 is not applied Contamination of the image sensor 80 due to particles generated on the side surface of the infrared filter 70 occurs.

Unlike the camera module structure of this comparative example, the camera module structure according to the embodiment of the present invention has a double stepped portion 67 (see FIG. 4A) in a base 60 to which the infrared filter 70 is adhered, Is formed.

A space 68 is formed between the infrared filter 70 and the double stepped portion 67 and the space 68 is filled with the adhesive 200 as shown in FIG. 70 are adhered to the base 60 and the adhesive 200 is applied to the side edges of the infrared filter 70 so that the camera module of the present invention prevents the generation of particles on the side of the infrared filter 70 .

Here, the adhesive 200 is preferably applied as an epoxy.

5, a second protrusion 69 is formed on the base 60 adjacent to the double stepped portion 67 so that the second protrusion 69 and the base 60 The adhesion means 210 capable of collecting the foreign object 2 can be mounted on the space 65 forming the body.

The double stepped portion 67 may be formed in the region of the base 60 opposed to the image sensor or may be formed in the region of the base 60 opposed to the lens, It is not.

FIG. 6 is a schematic plan view for explaining a region of a base where a projection of a bobbin of a camera module according to an exemplary embodiment of the present invention is in contact; FIGS. 7A and 7B are views Fig. 2 is a schematic cross-sectional view for explaining a protrusion formed on a substrate; Fig.

As described above, the protrusions formed on the bobbin of the camera module are brought into contact with the base upon autofocusing.

6, the protrusions of the bobbin are brought into contact with predetermined regions 101, 102, 103 and 104 of the base surface 61. The regions 101, 102, 103 and 104 to which the protrusions are contacted, Respectively.

Here, the regions 101, 102, 103, and 104 to which the projections come into contact are not limited to the four regions shown in FIG. 3, and can be variously applied.

A barrier 63 separating the inside and the outside of the camera module is formed on the outside of the base surface 61.

In this case, as shown in FIG. 7A, the first protrusions '62A' formed on the base may be connected to the two regions of the barrier 63 so as to surround the contact region 105 between the protrusions and the base of the bobbin.

That is, the first protrusion '62A' is connected to one region of the barrier 63 and is connected to another region of the barrier 63 while covering the contact region 105 between the protrusion and the base of the bobbin.

As shown in FIG. 7B, the first protrusion '62B' formed on the base may be configured to surround the contact region 105 between the projection of the bobbin and the base, which are spaced apart from the barrier 63.

The base surface 61a inside the first protrusions 62A and 62B in Figs. 7A and 7B in which the bobbin protrusion and the base contact region 105 exist is formed on the base surface outside the first protrusions 62A and 62B The foreign substances generated by contacting the protrusions with the base surface 61a are trapped inside the first protrusions 62A and 62B and are prevented from flowing to the outside of the first protrusions 62A and 62B It can be done.

FIG. 8 is a partial cross-sectional view illustrating a state in which a foreign matter collecting groove is formed in a base region of a camera module according to an exemplary embodiment of the present invention. FIG. 9 is a perspective view of a camera module according to an exemplary embodiment of the present invention. 10 is a partial cross-sectional view illustrating a state in which another foreign matter collecting groove is formed in a base region of a camera module according to an embodiment of the present invention, and FIG. 11 is a cross-sectional view of a camera module according to an embodiment of the present invention. FIG. 2 is a partial cross-sectional view showing a state in which an adhesive for collecting foreign matters is formed in a base region of the substrate.

8, the camera module according to the embodiment of the present invention includes a base surface 61a inside a third protrusion 62 that surrounds a contact area between the protrusion of the bobbin 41 and the base, Grooves 61b may be further provided.

The protrusion of the bobbin 41 may be designed to contact the bottom surface of the foreign matter collecting groove 61b.

5, a first groove is formed in the base surface, a second groove is formed in the first groove, and the second groove is designed to contact the projection of the bobbin 41 . Here, the second groove is formed in the region of the base surface on which the protrusion of the bobbin 41 contacts, and is formed in a local region of the entire base surface.

The second groove may be formed in the entire area or a partial area of the base surface inside the projection, and a first groove may be formed around the locally formed second groove, as described above.

In Fig. 5, the foreign matter collecting groove 61b may be defined as the second groove.

The third protrusion 62 may be formed of the same material as the base 60 or may form a third protrusion 62C made of a different material from the base 60 as shown in FIG. have.

A groove may be further formed on the base surface 61a inside the third protrusion 62 other than the contact area between the protrusion of the bobbin 41 and the base so as to collect the foreign matter 180, It is preferable that it is the V groove 61c as shown in Fig.

Therefore, the foreign matter 180 flows in the direction A in which the V groove 61c is present and is collected.

As shown in FIG. 11, the base surface 61a on the inside of the third protrusion 62 other than the contact area between the protrusion of the bobbin 41 and the base may be adhered to the base surface 61a, ) 65 may be formed.

In addition, in the camera module of the present invention, the adhesive may be formed on the base surface 61 outside the third projection 62.

Here, the adhesive 65 includes an adhesive material that maintains a sticky adhesive force.

For example, the adhesive 65 may be an adhesive tape having adhesive properties on both sides, and the lower surface of the adhesive tape is adhered to the base surface 61a inside the third projecting portion 62, So that the foreign substance 180 is adhered.

The adhesive 65 may be applied to the base surface 61a inside the protrusion 62 as an adhesive material.

It is preferable that the adhesive 65 does not come into contact with the protrusion of the bobbin 41 so that the contact area of the base with which the protrusion of the bobbin 41 comes into contact is spaced apart by a predetermined distance d.

It is also possible to prevent the adhesive 65 from flowing between the contact area of the base where the protrusion of the bobbin 41 contacts and the pressure sensitive adhesive 65 to the contact area of the base in contact with the protrusion of the bobbin 41 A step can be formed.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (25)

A lens barrel including a plurality of lenses;
An actuator including a bobbin coupled to the lens barrel, and a coil wound around a circumferential surface of the bobbin;
A base disposed below the actuator and having a window formed therein;
A printed circuit board disposed below the base; And
And an infrared filter disposed in the base,
Wherein a double stepped portion is formed in the window of the base, an adhesive is interposed between the double stepped portion and the infrared filter to adhere the infrared filter to the base, and the adhesive is applied to the side edge of the infrared filter And,
The bobbin is provided with a protrusion capable of coming into contact with the upper surface of the base. A first protrusion is formed upwardly in a peripheral region of the contact region of the base with which the protrusion is brought into contact, and the protrusion of the bobbin is in contact with the protrusion A camera module (Surrounding) surrounding the area of the base.
The method according to claim 1,
Wherein the double stepped portion comprises:
Wherein the camera module is formed in the base region facing the image sensor. The method according to claim 1,
Wherein the double stepped portion comprises:
A first stepped portion;
And a second stepped portion connected to the first stepped portion.
The method according to claim 1,
And a second projection protruding downward from the lower surface of the base adjacent to the double stepped portion.

The method of claim 4,
And a pressure sensitive adhesive capable of collecting foreign matter is formed in a space formed by the second projection and the base.



delete delete delete The method according to claim 1,
And a third protrusion is further formed around the window.

The method of claim 9,
And a pressure sensitive adhesive capable of collecting foreign matter is further applied to a space formed by the third projection and the base.
The method of claim 9,
Wherein the first protrusion and the third protrusion are connected to each other.

The method according to claim 1,
One or both of a top elastic member mounted on the case and a bottom elastic member mounted on the base so that the lens barrel and the bobbin move along the optical axis direction by the operation of the actuator and then return to the original state,
And the protrusion of the bobbin is in contact with the upper elastic member or the lower elastic member.

The method according to claim 1,
And a barrier for separating the inside and the outside of the camera module is formed on an outer side of the base surface.

14. The method of claim 13,
The first projecting portion
And a structure connected to the barrier to surround the projection of the bobbin and the contact area of the base.

14. The method of claim 13,
The first projecting portion
And a structure that surrounds the projection of the bobbin and the contact area of the base spaced from the barrier.

The method according to claim 1,
And a foreign matter collecting groove capable of collecting foreign matter on the upper surface of the base inside the first projection.
18. The method of claim 16,
And the projection of the bobbin is in contact with the bottom surface of the foreign matter collecting groove.

18. The method of claim 16,
The foreign matter collecting groove
Wherein the projections of the bobbin and the base are formed on the upper surface of the base inside the projections other than the contact area of the base.

19. The method of claim 18,
The foreign matter collecting groove
V-home camera module.
The method according to claim 1,
Wherein a first groove is formed on the upper surface of the base, a second groove is formed in the first groove, the second groove is in contact with the projection of the bobbin, and the first groove and the second groove Is located inside the first projection.

The method according to claim 1,
And a pressure sensitive adhesive capable of bonding and fixing the foreign matter to the upper surface of the base on the inner side of the first projecting portion other than the contact region of the bobbin and the base.
23. The method of claim 21,
Wherein the adhesive is spaced a predetermined distance from the contact area so that the adhesive does not come into contact with the projection of the bobbin in the contact area of the base with which the projection of the bobbin contacts.

The method according to claim 1,
And an adhesive is formed on an upper surface of the base outside the first projection.

23. The method of claim 21,
Between the contact area of the base to which the projection of the bobbin is in contact and the adhesive,
And the adhesive is prevented from flowing to the contact area of the base where the projection of the bobbin comes into contact.

The method according to claim 1,
Wherein the base has a plurality of regions in which the protrusions of the bobbins contact,
The first projecting portion
And the protrusion of the bobbin is formed in correspondence with each of regions of the base to which the bobbin is contacted.

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