TWI585483B - Camera module, method for aligning optical axis of camera module and portable electronic device including camera module - Google Patents

Description

Photographic module, optical axis alignment method of photography module, and photography Portable electronic device of the module [Cross-Reference to Related Applications]

This application claims Korean Patent Application No. 10-2013-0123246, filed on October 16, 2013 at the Korea Intellectual Property Office, and Korean Patent Application No. 10-2014, filed on January 23, 2014 at the Korea Intellectual Property Office. The Korean Patent Application No. 10-2014-0028631 filed on Jan. 29, 2014, the entire disclosure of which is hereby incorporated by reference.

Embodiments of the present disclosure generally relate to a photographic module, a method for aligning an optical axis of a photographic module, and a portable electronic device including a photographic module.

The photographic module provided in the portable electronic device drives a lens barrel that supports one or more lenses in the optical axis for focusing purposes.

In this case, the lens barrel is movable in the optical axis direction, and the optical axis of the lens can be disposed perpendicular to the image forming surface of the image sensor.

However, during the driving process of the lens barrel, the optical axis of the lens may be inclined with respect to the image forming surface of the image sensor, and the optical axis of the lens may not be perpendicular to the image formation of the image sensor in the initial assembled state. The surface is correctly aligned.

Some aspects of the embodiments disclosed herein by way of example are summarized below. It is to be understood that the present invention is only intended to provide the reader with a brief summary of some forms of the invention that may be disclosed and/or claimed herein, and such aspects are not intended to limit the disclosure and/or Or the scope of any invention claimed. In fact, any invention disclosed and/or claimed herein may encompass a variety of aspects that may not be described below.

The exemplary embodiment of the present disclosure may provide a photographic module that can be adjusted such that an slanted state of an optical axis of a lens relative to an image forming surface of the image sensor is within a predetermined range, and includes the photographic module Portable electronic device.

The illustrative embodiments of the present disclosure may also provide a method for aligning the optical axis of a lens module capable of correcting the tilted state of the optical axis of the lens.

According to an exemplary embodiment of the present disclosure, a photographic module may include: a lens barrel supporting one or more lenses; a frame in which the lens barrel is disposed; and a housing accommodating the frame. The frame can be pressed toward one of the outer casings The surface is thereby positioned in relative alignment in the housing such that the optical axis of the lens is positioned perpendicular to the image forming surface of the image sensor.

The photographic module may further include an elastic member that movably presses the frame.

The frame may be pressed against a surface of the outer casing by a pressing force of the elastic member such that the frame may be closely adhered to the outer casing.

An opening that exposes a portion of the frame to the exterior of the outer casing may be disposed in the outer casing such that the position of the frame may be adjusted.

The adjustment portion may be disposed in the portion of the frame that is exposed through the opening.

The position of the frame can be adjusted by inserting a separate tool into the adjustment portion to move or lift the frame.

In the method for aligning the optical axis of the photographic module according to an exemplary embodiment of the present disclosure, after the photographic module is assembled, the tilt state of the optical axis of the lens may be measured, and depending on the light Whether the tilt state of the shaft is within a predetermined range can determine whether the position of the frame needs to be adjusted.

In the method for aligning the optical axis of the photographic module according to an exemplary embodiment of the present disclosure, the adjustment of the position of the frame may be optional.

Various modifications of the features described above may exist with regard to the various aspects of the present disclosure. Other features may also be incorporated into various aspects such as these. These improvements, as well as additional features, may exist individually or in any combination. For example, various features discussed below with respect to one or more of the illustrated embodiments can be used individually or in any group. Merge into any of the above aspects. In addition, the brief summary presented above is only intended to be a part of the description of the embodiments of the invention, and is not limited to the claimed subject matter.

10‧‧‧First cover

11‧‧‧ Pressing the protrusion

20‧‧‧Lens tube

21‧‧‧ magnet

23‧‧‧ Ball Bearings

25‧‧‧ coil

27‧‧‧Y yoke

30‧‧‧Frame

30'‧‧‧Frame

30"‧‧‧ framework

31‧‧‧Adjustment section

31'‧‧‧Adjustment section

31"‧‧‧Adjustment section

31a‧‧‧Upper surface

31'a‧‧‧ upper surface

31"a‧‧‧ upper surface

31b‧‧‧ protruding part

33‧‧‧ coupling protrusion

35‧‧‧ protruding part

40‧‧‧Flexible components

41‧‧‧Fixed end

43‧‧‧Drive end

43a‧‧‧ coupling groove

50‧‧‧second cover

50'‧‧‧second cover

51‧‧‧ openings

51'‧‧‧ openings

53‧‧‧ Attachment hole

55‧‧‧Support section

60‧‧‧ Shell

70‧‧‧Printed circuit board

71‧‧‧Image sensor

80‧‧‧ tools

100‧‧‧Photography module

100'‧‧‧Photography module

200‧‧‧ lens tube

300‧‧‧Frame

400‧‧‧ body part

600‧‧‧ Shell

710‧‧‧Image Sensor

Part A‧‧‧

O‧‧‧ optical axis

S10~S50‧‧‧Steps

V‧‧‧ vertical line

Θ‧‧‧ angle

The above and other aspects, features and advantages of the present disclosure will be more clearly understood from the following detailed description.

1 is an exploded perspective view of a photographic module in accordance with an illustrative embodiment of the present disclosure.

2A is a schematic cross-sectional view illustrating a state in which an optical axis of a lens is placed in a photographic module in an inclined state.

2B is a cross-sectional view of a photographic module in accordance with an illustrative embodiment of the present disclosure.

2C illustrates a partial view of a modified example of portion A of FIG. 2B.

3 is a bottom view of a first casing in accordance with an illustrative embodiment of the present disclosure.

4 is a bottom view illustrating a manner in which an elastic member is fixed to a first cover in accordance with an exemplary embodiment of the present disclosure.

FIG. 5A is a schematic perspective view illustrating a manner in which an elastic member presses a frame according to an exemplary embodiment of the present disclosure.

FIG. 5B is a schematic side view illustrating a manner in which an elastic member presses a frame according to an exemplary embodiment of the present disclosure.

FIG. 6 is a partially exploded perspective view of a photographic module in accordance with an illustrative embodiment of the present disclosure.

7 is an assembled perspective view of a photographic module in accordance with an illustrative embodiment of the present disclosure.

FIG. 8 is a side view of a photographic module in accordance with an illustrative embodiment of the present disclosure.

9 is a perspective view illustrating a manner of adjusting a position of a frame in a photographing module in accordance with an exemplary embodiment of the present disclosure.

10A through 10C are side views illustrating modified examples of an upper surface of an adjustment portion in a photographing module according to an exemplary embodiment of the present disclosure.

11A and 11B are perspective views of modified portions of the adjustment portion and the opening, in accordance with an exemplary embodiment of the present disclosure.

FIG. 12 is a flow chart that schematically illustrates a method for aligning an optical axis of a photographic module, in accordance with an illustrative embodiment of the present disclosure.

FIG. 13 is a conceptual diagram illustrating an example of a method for aligning an optical axis of a photographic module, in accordance with an illustrative embodiment of the present disclosure.

FIG. 14 is a perspective view of a portable electronic device including a photographic module in accordance with an exemplary embodiment of the present disclosure.

Hereinafter, an exemplary embodiment of the present disclosure will be described in detail with reference to the accompanying drawings. However, the present disclosure may be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein. The present invention is provided so that this disclosure will be thorough and complete, and the scope of the disclosure will be fully conveyed by those skilled in the art. In the drawings, the shapes and dimensions of the elements may be exaggerated for clarity. The same reference numbers will be used throughout the drawings to refer to the

1 is an exploded perspective view of a photographic module in accordance with an illustrative embodiment of the present disclosure.

Referring to FIG. 1 , a camera module 100 according to an exemplary embodiment of the present disclosure may include a lens barrel 20 , a frame 30 , and a housing 60 .

First, terms relating to directions will be defined for illustrative purposes only. The optical axis direction refers to the vertical direction based on the lens barrel 20, and the length or width direction refers to the direction from one corner of the frame 30 toward the other corner thereof.

The lens barrel 20 may have a hollow cylindrical shape such that one or more lenses for imaging an object may be accommodated therein, and the lens may be disposed in the lens barrel 20 on the optical axis.

The lens barrel 20 can be coupled to the frame 30. For example, the lens barrel 20 can be disposed in the frame 30.

Here, the lens barrel 20 is movable within the frame 30 in the optical axis direction to perform autofocus.

In order to move the lens barrel 20 in the optical axis direction, the magnet 21 may be mounted on one surface of the lens barrel 20 as a driving portion, and the coil 25 may be disposed in the housing 60 to face the magnet 21.

The coil 25 can move the lens barrel 20 in the optical axis direction via electromagnetic interaction with the magnet 21 disposed adjacent to the coil 25.

Further, the yoke 27 can be attached to the coil 25 to prevent leakage of magnetic flux.

The magnet 21 can form a predetermined magnetic field. When power is applied to the coil 25, A driving force is generated via electromagnetic interaction between the magnet 21 and the coil 25 to thereby move the lens barrel 20 in the optical axis direction.

The frame 30 can accommodate the lens barrel 20 therein to support the lens barrel 20.

Therefore, an internal space can be formed in the frame 30 to accommodate the lens barrel 20.

Meanwhile, one or more ball bearings 23 may be disposed in the lens barrel 20 in the optical axis direction as a function for facilitating movement of the lens barrel 20 when the lens barrel 20 moves in the frame 30 in the optical axis direction. Guide member.

A plurality of ball bearings 23 may contact the outer surface of the lens barrel 20 and the inner surface of the frame 30 to guide the movement of the lens barrel 20 in the optical axis direction.

For example, a plurality of ball bearings 23 may be disposed between the lens barrel 20 and the frame 30, and support movement of the lens barrel 20 in the optical axis direction via a rolling motion.

Therefore, when the lens barrel 20 is moved in the optical axis direction, the plurality of ball bearings 23 can support the lens barrel 20 so that the lens barrel 20 can move parallel to the optical axis.

The outer casing 60 may include a first casing 10 and a second casing 50 coupled to each other to provide an inner space, and the frame 30 may be disposed in the inner space.

For example, the second casing 50 can accommodate the frame 30 such that the upper portion of the frame 30 is exposed via the second casing 50, and the first casing 10 can be coupled to the second casing 50 to enclose the frame 30. The upper part.

The printed circuit board 70 on which the image sensor 71 can be mounted can be fixed to the outer casing The lower part of 60.

At the same time, the frame 30 may be disposed in the inner space of the outer casing 60 to thereby be pressed against one surface of the outer casing 60.

The photographing module 100 according to the exemplary embodiment of the present disclosure may further include the elastic member 40 that presses the frame 30.

The frame 30 can be pressed by the resilient member 40 to thereby be relatively aligned relative to the outer casing 60.

When the frame is housed in the interior space of the outer casing, the frame may be inclined relative to the outer casing due to assembly tolerances between the frame and the outer casing or the like. Therefore, the optical axis of the lens provided in the lens barrel housed in the frame can be tilted.

However, in the photographing module 100 according to the exemplary embodiment of the present disclosure, the frame 30 may be relatively aligned with respect to the outer casing 60 in a state where the frame 30 is elastically supported by the elastic member 40. Therefore, assembly defects due to assembly tolerances between the two can be reduced.

2A is a schematic cross-sectional view illustrating a state in which an optical axis of a lens is disposed in a photographic module in an inclined state, and FIG. 2B is a cross-sectional view of the photographic module according to an exemplary embodiment of the present disclosure, and FIG. 2C A partial view of a modified example of Part A of Figure 2B is illustrated.

A state in which the optical axis O of the lens is tilted in the photographic module will be described with reference to FIG. 2A.

In the case where the frame 300 is housed in the outer casing 600 of the photographic module, the frame 300 may be disposed not parallel to the outer casing 600, but may be due to, for example, individual components. The manufacturing tolerance or assembly tolerance and various factors of its similarity are placed in an inclined state.

Since the frame 300 houses the lens barrel 200, when the frame 300 is placed in an inclined state, the lens barrel 200 can also be inclined, and thus, the optical axis O of the lens provided in the lens barrel 200 can be tilted.

For example, the optical axis O of the lens is not perpendicular to the image forming surface of the image sensor 710 disposed in the lower portion of the outer casing 600, but is inclined at an angle (θ) with respect to the vertical line V, wherein The vertical line V is perpendicular to the image forming surface of the image sensor 710.

In the case where the optical axis O of the lens is tilted as described above, the image taken by the photographic module can be distorted, and the distortion can have a negative image for the resolution, resulting in degradation of image quality and the like.

Referring to FIG. 2B, in the camera module 100 according to an exemplary embodiment of the present disclosure, the frame 30 can be pressed against one surface of the outer casing 60.

To this end, by way of example and not limitation, the camera module 100 according to the exemplary embodiment of the present disclosure may include an elastic member 40. The resilient member 40 can be positioned to press the frame 30 within the outer casing 60.

Since the frame 30 is pressed in the pressing direction of the elastic member 40 (that is, in the direction toward one surface of the outer casing 60), one surface of the frame 30 can be closely adhered to one surface of the outer casing 60.

That is, the frame 30 can be aligned and tightly adhered to the outer casing 60 in the outer casing 60 by the pressing force or elastic force of the elastic member 40.

Further, the frame 30 may be fixed in the outer casing 60 in a state in which the frame 30 is aligned such that the optical axis O of the lens is positioned perpendicular to the image forming surface of the image sensor 71.

Here, the term "vertical" can be used in the sense that the angle between the vertical line V orthogonal to the image forming surface of the image sensor 71 and the optical axis O of the lens is within a predetermined range. The condition; and the angle between the image forming surface of the image sensor 71 and the optical axis O of the lens is about 90 degrees.

Therefore, it is possible to prevent the frame 30 from being placed in an inclined state with respect to the outer casing 60 due to various factors such as assembly tolerances and the like, and therefore, the optical axis of the lens can be secured by preventing the optical axis O of the lens from being tilted. O is perpendicular to the image forming surface of the image sensor 71.

A modified example of the tightly adhered state of the frame 30 and the outer casing 60 will be described with reference to FIG. 2C.

In the present exemplary embodiment, the protruding portion 35 may be formed on one surface of the frame 30 (for example, the bottom surface of the frame 30), and the support portion 55 may be from one surface of the outer casing 60 (such as facing the bottom surface of the frame) The inner surface of the outer casing 60 is raised.

The frame 30 is pressed against one surface of the outer casing 60 so that the protruding portion 35 and the supporting portion 55 can be closely adhered to each other.

In the present exemplary embodiment, even in a state where the entire surface of the frame 30 and the entire surface of the outer casing 60 are not closely adhered to each other, the protruding portion 35 and the supporting portion 55 can be closely adhered to each other, thereby obtaining and according to the present Revealed example The photographic module 100 of the illustrative embodiment has the same effect.

3 is a bottom view of a first cover in accordance with an exemplary embodiment of the present disclosure, and FIG. 4 is a bottom view illustrating a manner in which an elastic member is fixed to a first cover in accordance with an exemplary embodiment of the present disclosure.

In addition, FIG. 5A is a schematic perspective view illustrating a manner in which an elastic member presses a frame according to an exemplary embodiment of the present disclosure, and FIG. 5B is a schematic view illustrating a manner in which an elastic member presses a frame according to an exemplary embodiment of the present disclosure. Side view.

An exemplary structure that allows a pressing force to be generated in the elastic member 40 will be described with reference to FIGS. 3 to 5B.

First, referring to FIGS. 5A and 5B, the elastic member 40 and the frame 30 can be assembled by attaching the elastic member 40 to the upper portion of the frame 30.

For example, a coupling groove or hole 43a may be formed in each corner of the elastic member 40, and the coupling protrusion 33 may be formed at each corner of the upper portion of the frame 30 corresponding to the coupling groove 43a. The coupling protrusion 33 may be inserted into the coupling groove 43a such that the elastic member 40 may be coupled to the frame 30.

Here, the coupling protrusion 33 protruding from each corner of the upper portion of the frame 30 may have a double structure such as, but not limited to, a double step shape.

Therefore, the elastic member 40 can be disposed to be spaced apart from the frame. For example, portions of the resilient member 40 can be coupled to the frame 30 and other portions of the resilient member 40 can be spaced apart from the upper surface of the frame 30.

Here, as shown in FIG. 3, one or more pressing protrusions 11 that press a portion of the elastic member 40 (a portion of the elastic member 40 spaced apart from the upper surface of the frame 30) It may be formed on the lower surface of the first casing 10.

In the case where the first cover 10 and the second cover 50 are coupled to each other, since the pressing protrusion 11 presses a portion of the elastic member 40 spaced apart from the upper surface of the frame 30, the elastic member can be in the optical axis direction. A pressing force is generated downward in 40, whereby the frame 30 is pressed toward one surface of the second casing 50. In a state where the frame is pressed by the elastic member 40, the frame 30 can be moved by a predetermined force or a large force.

Therefore, the frame 30 can be closely adhered to one of the first casing 10 and the second casing 50 by the pressing force of the elastic member 40. In the present exemplary embodiment, the frame 30 can be closely adhered to the second casing 50.

Referring to FIG. 4, the elastic member 40 may be fixed to the pressing protrusion 11 provided in the first cover 10.

The first casing 10 can be coupled to the second casing 50 in a state where the elastic member 40 is fixed, and the elastic member 40 and the frame 30 can be connected to each other in the coupling process of the first casing 10 and the second casing 50. .

The elastic member 40 may include a fixed end 41 connected to the pressing protrusion 11 of the first cover 10 and a driving end 43 connected to the frame 30.

The lower surface of the pressing protrusion 11 of the first casing 10 may be positioned below the upper surface of the coupling protrusion 33 of the frame 30 in the optical axis direction.

Therefore, when the first casing 10 and the second casing 50 are coupled to each other, one of the fixed end 41 and the driving end 43 can be positioned under the other in the optical axis direction.

That is, the fixed end 41 and the driving end 43 can be covered by the first cover 10 And the coupling of the second casing 50 is positioned on different planes from each other.

In the present exemplary embodiment, the fixed end 41 may be positioned below the drive end 43 in the optical axis direction such that the pressing force may be in the drive end 43 due to the difference in the position or horizontal plane of the fixed end 41 and the drive end 43. produce.

The frame 30 can be closely adhered to the second cover 50 by pressing the pressing force of the elastic member 40 of the frame 30, so that assembly tolerances to be generated during the assembly process of the frame 30 and the second cover 50 can be reduced.

Therefore, the problem that the frame 30 can be placed in the inclined state with respect to the second casing 50 can be prevented, and therefore, the optical axis O of the lens can be ensured perpendicular to the image sensor 71 by preventing the tilt of the optical axis O of the lens. The image forms a surface.

6 is a partially exploded perspective view of a photographic module according to an exemplary embodiment of the present disclosure, FIG. 7 is an assembled perspective view of a photographic module according to an exemplary embodiment of the present disclosure, and FIG. 8 is an illustration according to the present disclosure. Side view of a photographic module of an embodiment.

9 is a perspective view illustrating a manner of adjusting a position of a frame in a photographing module in accordance with an exemplary embodiment of the present disclosure.

A structure for aligning the optical axis O of the lens in the photographic module 100, in addition or as the case may be described, will be described with reference to FIGS. 6 through 9 in accordance with an exemplary embodiment of the present disclosure.

The frame 30 can be aligned in the outer casing 60 in a state where the frame 30 is elastically supported by the elastic member 40. Therefore, one surface of the frame 30 can be closely adhered to one surface of the outer casing 60.

However, even in the case where the frame 30 and the outer casing 60 are closely adhered to each other The optical axis O of the lens may also be perpendicular to the image sensor due to, for example, manufacturing tolerances between the frame 30 and the outer casing 60, assembly tolerances between the frame 30 and the lens barrel 20, or the like. The image of 71 forms a surface to align and may require additional alignment.

Accordingly, one or more openings 51 exposing a portion of the frame 30 to the exterior of the outer casing 60 may be disposed in the outer casing 60 of the camera module 100 in accordance with an exemplary embodiment of the present disclosure such that the position of the frame 30 is photographic. The module 100 is adjusted after assembly.

In the camera module 100 according to the exemplary embodiment of the present disclosure, the position of the frame 30 can be adjusted by moving the frame 30 exposed through the opening 51 so that the optical axis O of the lens can be assembled even in the photographic module. Also aligned in the state.

Further, the frame 30 may be aligned in the outer casing 60 in a state where a gap may be formed between the side wall of the frame 30 and the side inner wall of the outer casing 60.

A gap may be formed between the sidewall of the frame 30 and the sidewall of the outer casing 60 such that the frame 30 is movable within the outer casing 60 after assembly of the photographic module 100.

Here, the opening 51 may be disposed in a side wall of the outer casing 60.

In the photography module 100 according to the exemplary embodiment of the present disclosure, one or more adjustment portions 31 may be disposed in a portion of the frame 30 exposed through the opening 51 of the outer casing 60 such that the alignment state of the frame 30 may be Easy to adjust. By way of example and not limitation, the adjustment portion 31 can have a stepped shape or groove.

The adjustment portion 31 and the opening 51 may be formed in the frame 30 and the corner of the outer casing 60.

The adjustment portion 31 and the opening 51 may be formed in positions corresponding to each other, and the adjustment portion 31 may be exposed outward through the opening 51.

Therefore, in the case where the optical axis O of the lens needs to be additionally aligned in the photographic module 100 according to the exemplary embodiment of the present disclosure, the alignment state of the frame 30 can be achieved by the independent tool 80 as shown in FIG. For example, a tip or a jig is inserted into the adjustment portion 31 exposed outward through the opening 51 to be adjusted by moving the frame 30.

For example, when a tool 80 (eg, a pin or hook) is inserted into the adjustment portion 31 of the frame 30 via the opening 51 of the outer casing 60, the tool 80 (eg, a pin or hook) can contact the adjustment portion 31. Here, the frame 30 can be moved by lifting the frame 30 using a tool 80 (eg, a pin or hook).

As noted above, the frame 30 can be moved using a tool 80 (eg, a pin or hook) that can be positioned to align with the image forming surface of the image sensor 71 by adjusting the position of the frame 30. .

Therefore, the lens barrel 20 housed in the frame 30 can be moved by adjusting the alignment state of the frame 30, and the optical axis O of the lens disposed in the lens barrel 20 can be aligned by moving the lens barrel 20. .

That is, the optical axis O of the lens can be positioned perpendicular to the image forming surface of the image sensor 71 by adjusting the position of the frame 30.

The frame 30 can be fixed to the outer casing 60 in a state in which the frame 30 is aligned such that the optical axis O of the lens is positioned perpendicular to the image forming surface of the image sensor 71.

Meanwhile, as the frame 30 is lifted up via the adjustment portion 31, at least a portion of one surface of the frame 30 closely adhered to one surface of the outer casing 60 may be externally One surface of the case 60 is spaced apart from each other by a predetermined interval.

In other words, the frame 30 can be fixed to the outer casing 60 in a state where the frame 30 is inclined with respect to the outer casing 60 such that the optical axis O of the lens is positioned perpendicular to the image forming surface of the image sensor 71.

Therefore, a larger force can be applied to a portion of the elastic member 40 that presses the frame 30 than the other portions of the elastic member 40, and the frame 30 can be supported by the elastic member 40 in a state where the frame 30 is inclined with respect to the outer casing 60.

However, the present disclosure is not limited thereto, but the frame 30 may be parallel to the outer casing 60 even when the frame 30 is lifted via the adjustment portion 31. In this case, the frame 30 can be fixed in a state in which the frame 30 is parallel to the outer casing 60.

At the same time, at least one attachment hole 53 may be formed in the outer casing 60. The outer surface of the frame 30 may be exposed to the outside of the outer casing 60 via the attachment hole 53.

For example, an adhesive (not shown) may be injected or disposed in at least one of the attachment hole 53 and the opening 51 to thereby fix the position of the frame 30. However, any member or material used to secure the position of the frame 30 can be used.

10A through 10C are side views illustrating modified examples of an upper surface of an adjustment portion in a photographing module according to an exemplary embodiment of the present disclosure.

Referring to FIG. 10A, the upper surface 31a of the adjustment portion 31 may be a flat surface. In the present exemplary embodiment, the position of the frame 30 can be adjusted by inserting a tool 80 (eg, a pin or hook) into the adjustment portion 31 to lift the frame 30.

Referring to Fig. 10B, the upper surface 31a of the adjustment portion 31 can be inclined.

For example, the upper surface 31a of the adjustment portion 31 may be long in the frame 30 Tilt down in degrees or widths.

In this case, one surface of the tool 80 (for example, a pin or a hook) may be inclined so as to correspond to the upper surface 31a of the adjustment portion 31. When the tool 80 (for example, a pin or a hook) is inserted into the adjustment portion 31 in a state where one surface thereof contacts the upper surface 31a of the adjustment portion 31, the frame 30 can be naturally moved. Therefore, the position of the frame 30 can be easily adjusted.

Further, referring to FIG. 10C, the protruding portion 31b may be formed on the upper surface 31a of the adjustment portion 31.

In this case, one surface of the tool 80 (for example, a pin or a hook) that contacts the protruding portion 31b may be inclined downward toward the distal end. When the tool 80 (for example, a pin or a hook) is inserted in a state where one surface thereof contacts the protruding portion 31b, the frame 30 can naturally move. Therefore, the position of the frame 30 can be easily adjusted.

Here, the outer surface of the protruding portion 31b is bendable. Since the protruding portion 31b is in point contact with the tool 80 (for example, a pin or a hook), the frame 30 can be gently moved. However, the present disclosure is not limited thereto, but the protruding portion 31b may be in line or surface contact with the tool 80 (for example, a pin or a hook).

In a state where one surface of the frame 30 and one surface of the outer casing 60 are in close contact with each other to satisfy the vertical condition of the optical axis O of the lens, the surface of the frame 30 and the surface of the outer casing 60 are closely adhered to each other by the adhesion state of the optical axis O of the lens 60. For example, but not limited to, an adhesive (not shown) is maintained. Any member for fixing the position of the frame 30 can be used to maintain the tightly adhered state of the frame 30 and the outer casing 60.

In addition, the position of the adjustment frame 30 is aligned perpendicular to the optical axis O of the lens. In the case where the image of the image sensor 71 forms a surface and then an adhesive (not shown) is injected into at least one of the attachment hole 53 and the opening 51 to fix the frame 30 to the outer casing 60, one of the frames 30 At least a portion of the surface may be spaced apart from a surface of the outer casing 60 by a predetermined interval.

Here, since the elastic member 40 presses the frame 30 downward in the optical axis direction, the adhesive (not shown) needs to have a sufficient adhesive force to withstand the pressing force of the elastic member 40, so that the lower surface of the frame 30 can be The outer casing 60 is fixed in a state where the lower surface of the frame 30 is spaced apart from the outer casing 60 by a predetermined interval.

For example, the adhesive force (not shown) of the adhesive may be equal to or stronger than the pressing force of the elastic member 40, and may correspond at least to the pressing force of the elastic member 40.

11A and 11B are perspective views of modified portions of the adjustment portion and the opening, in accordance with an exemplary embodiment of the present disclosure.

Referring to FIG. 11A, in a photography module 100' according to another exemplary embodiment of the present disclosure, the adjustment portion 31' may be disposed in a corner of the frame 30' and have a groove shape. Referring to FIG. 11B, the adjustment portion 31" and the opening 51' may be formed in the side surfaces of the frame 30" and the second cover 50', respectively.

Further, the adjustment portion 31" may be formed in a side surface of the frame 30" to be adjacent to a corner of the frame 30".

Therefore, similar to the photographing module 100 according to the above-described exemplary embodiment of the present disclosure, the tool 80 can contact the upper surface 31 of the adjustment portion 31" in a state where the independent tool 80 or the like is inserted into the opening 51'. 'a. Further, the frame 30' can be moved by lifting the upper surface 31"a of the adjustment portion 31" using the tool 80.

FIG. 12 is a flow chart that schematically illustrates a method for aligning an optical axis of a photographic module, in accordance with an illustrative embodiment of the present disclosure.

A method for aligning an optical axis of a photographic module in accordance with an illustrative embodiment of the present disclosure will be described with reference to FIG.

First, in step S10, the photographing module 100 or 100' according to the exemplary embodiment of the present disclosure can be manufactured by assembling the lens barrel 20, the frame 30, and the outer casing 60.

Here, the lens barrel 20 can be housed in the frame 30, and the frame 30 can be housed in the outer casing 60.

The elastic member 40 may be provided in a program for manufacturing the photographic module 100 or 100' such that the frame 30 can be pressed toward one surface of the outer casing 60 (S10).

The elastic member 40 may be fixed to the outer casing 60 and press the frame 30 to thereby allow one surface of the frame 30 to closely adhere to one surface of the outer casing 60.

After the photographic module 100 or 100' is assembled, the tilt state of the optical axis O of the lens housed in the lens barrel 20 can be measured (S20).

For example, it can be determined whether the optical axis O is perpendicular to the image forming surface of the image sensor 71, and/or can be measured between the vertical line V and the optical axis O orthogonal to the image forming surface of the image sensor 71. Angle.

Further, an angle between the virtual plane P parallel to the image forming surface of the image sensor 71 and one surface of the frame 30 can be measured.

By measuring the tilt state of the optical axis O of the lens, it can be determined whether or not the tilt state of the optical axis O is outside the preset range (S30).

In a state where the measured tilt state of the optical axis O is within a predetermined range, the position of the frame 30 is fixed using, for example, but not limited to, an adhesive or the like (S50). Any member or material used to secure the position of the frame 30 can be used.

At this time, the frame 30 may be fixed to the outer casing 60 in a state where one surface of the frame 30 and one surface of the outer casing 60 are closely adhered to each other.

However, in a state where the tilt state of the optical axis O is outside the preset range, the tilt state of the optical axis O can be corrected (S40).

Correction of the tilt state of the optical axis O may mean correcting the tilt state of the optical axis O by moving at least one portion of the frame 30 so as to be within a predetermined range.

Here, when at least one portion of the frame 30 is lifted, another portion of the frame 30 may be in a state of being fixed by the tool 80 (for example, a pin or a hook) so as not to move.

This will be described in detail with reference to FIG.

When the correction of the tilt state of the optical axis O is completed, the tilt state of the optical axis O can be measured again (S20), and it can be determined whether the tilt state of the optical axis O is outside the preset range (S30).

When the tilt state of the optical axis O is within a predetermined range, the position of the frame 30 can be fixed (S50), and the alignment of the optical axis of the photographing module can be completed.

In the present exemplary embodiment, it is determined whether the tilt state of the optical axis O is outside the preset range (S30), but the present disclosure is not limited thereto. That is, the tilt state of the optical axis O can be corrected according to the tilt value of the optical axis O after the tilt state of the optical axis O is measured, and then the position of the frame 30 can be fixed.

FIG. 13 is a conceptual diagram illustrating an example of a method for aligning an optical axis of a photographic module, in accordance with an illustrative embodiment of the present disclosure.

Referring to FIG. 13, after assembling the photographing module 100 according to the exemplary embodiment of the present disclosure, in a state where it is determined that correction of the tilt state of the optical axis O is required, a separate tool 80 (for example, a pin or a hook) can be inserted into Adjustment section 31.

In the present exemplary embodiment, the adjustment portion 31 is formed in each corner of the photographing module 100 so that four adjustment portions 31 can be provided.

Therefore, four tools 80 can be used, and each tool 80 can be inserted into the adjustment portion 31.

The tool 80 inserted into the adjustment portion 31 can be independently moved such that at least one portion of the frame 30 can be lifted by at least one tool 80 while another portion of the frame 30 can be in a state of being fixed by other tools 80.

For example, the frame 30 can be lifted using three of the four tools 80, and the frame 30 can be fixedly supported by the remaining tool 80 such that the tilted state of the optical axis O can be corrected.

FIG. 14 is a perspective view of a portable electronic device including a photographic module in accordance with an exemplary embodiment of the present disclosure.

Referring to FIG. 14, a portable electronic device according to an exemplary embodiment of the present disclosure may include a body portion 400 and a photography module 100 or 100'.

The photographic module 100 or 100' may have all or some of the features of the photographic module in accordance with the above-described exemplary embodiments, and the photographic module 100 or 100' may be coupled to the body portion 400.

As described above, in the photographic module according to the exemplary embodiment of the present disclosure, the method for aligning the optical axis of the photographic module, and the portable electronic device including the photographic module, even in the assembly of the photographic module The position of the internal components can also be selectively adjusted.

Therefore, the tilt state of the optical axis of the lens with respect to the image forming surface of the image sensor can be adjusted so as to be included in a predetermined range.

While the present invention has been shown and described, it will be understood that modifications and changes may be made without departing from the scope of the invention as defined by the appended claims.

10‧‧‧First cover

20‧‧‧Lens tube

21‧‧‧ magnet

23‧‧‧ Ball Bearings

25‧‧‧ coil

27‧‧‧Y yoke

30‧‧‧Frame

31‧‧‧Adjustment section

31a‧‧‧Upper surface

33‧‧‧ coupling protrusion

40‧‧‧Flexible components

41‧‧‧Fixed end

43‧‧‧Drive end

43a‧‧‧ coupling groove

50‧‧‧second cover

51‧‧‧ openings

53‧‧‧ Attachment hole

60‧‧‧ Shell

70‧‧‧Printed circuit board

71‧‧‧Image sensor

100‧‧‧Photography module

O‧‧‧ optical axis

Claims (38)

A photographic module comprising: a frame accommodating a lens barrel; a housing accommodating the frame; and an elastic member disposed in the housing and pressing the frame, wherein when the housing is attached to the frame, The resilient member deforms and presses the frame, and wherein the frame is moved relative to the outer casing with the frame coupled to the outer casing until the frame is secured to the outer casing. The photographic module of claim 1, wherein the protruding portion is disposed on one surface of the frame, and the supporting portion is disposed on the one surface of the outer casing such that the protruding portion and the The support portions are closely adhered to each other. The photographic module of claim 1, wherein an optical axis of a lens housed in the lens barrel is disposed perpendicular to an image forming surface of an image sensor disposed in the housing. The photographic module of claim 1, wherein the frame is fixed to the outer casing in a state in which the frame is aligned in the outer casing so as to be orthogonal to a housing disposed in the outer casing. The angle between the line of the image forming surface of the image sensor and the optical axis of the lens disposed in the lens barrel is within a predetermined range. The photographic module of claim 1, wherein the elasticity The member includes a fixed end coupled to the outer casing and a drive end coupled to the frame. The photographic module of claim 5, wherein one of the fixed end and the drive end is positioned below the other in the optical axis direction. A photographic module comprising: a lens barrel; a frame accommodating the lens barrel; an elastic member coupled to the frame; and a first housing and a second housing accommodating the frame and coupled to each other to Caulking the elastic member to press the frame to be aligned in a pressing direction of the elastic member, wherein when the first cover is attached to the second cover, the elastic member deforms and presses the frame And wherein the frame is opposite to the first casing and the second casing in the case where the frame is coupled to one of the first casing and the second casing One moves until the frame is secured to one of the first housing and the second housing. The photographic module of claim 7, wherein the elastic member comprises a fixed end connected to one of the first cover and the second cover and a drive connected to the frame And a fixed end and the driving end are positioned on different planes from each other by coupling of the first cover and the second cover. A photographic module comprising: a frame accommodating a lens barrel; a housing accommodating the frame; and an elastic member pressing the frame toward a surface of the housing, wherein when the housing is attached to the frame, The elastic member deforms and presses the frame, and wherein the frame is moved relative to the outer casing with the frame coupled to the outer casing until the frame is fixed to the outer casing, and the outer casing has An opening that exposes a portion of the frame to the exterior of the outer casing. The photographic module of claim 9, wherein the frame is aligned in the outer casing in a state where the frame is elastically supported by the elastic member. The photographic module of claim 9, wherein the portion of the frame exposed through the opening is provided with an adjustment portion that adjusts an alignment state of the frame. The photographic module of claim 11, wherein the adjustment portion and the opening are respectively disposed in the frame and one or more corners of the outer casing. The photographic module of claim 11, wherein the adjustment portion and the opening are respectively disposed in the frame and one or more side surfaces of the outer casing. The photographic module of claim 11, wherein the adjustment One surface of the portion is inclined downward in the length or width direction of the frame. The photographic module of claim 11, wherein the protruding portion is disposed on a surface of the adjustment portion. The photographic module of claim 15, wherein the outer surface of the protruding portion is curved. The photographic module of claim 11, wherein at least a portion of one surface of the frame is spaced apart from the one surface of the outer casing by a predetermined interval. The photographic module of claim 9, wherein the frame is fixed to the outer casing in a state where the frame is inclined with respect to the outer casing such that a lens provided in the lens barrel The optical axis is aligned perpendicular to the image forming surface of the image sensor disposed in the housing. The photographic module of claim 9, wherein the frame is fixed to the outer casing in a state where the frame has a predetermined inclination with respect to the outer casing, so that the lens is disposed on the lens The optical axis of the lens in the barrel is aligned perpendicular to the image forming surface of the image sensor disposed in the housing. A photographic module includes: a housing that provides an interior space; and a frame that includes a lens barrel disposed in the interior space of the housing and pressed against a surface of the housing, wherein the frame is a gap is formed in the outer casing in a state between a side wall of the frame and a side wall of the outer casing, the side wall of the outer casing having An opening exposing a portion of the side wall of the frame to an exterior of the outer casing, wherein when the outer casing is attached to the frame, the elastic member deforms and presses the frame, and wherein the frame is coupled Attaching to the outer casing moves the frame relative to the outer casing until the frame is secured to the outer casing. The photographic module of claim 20, further comprising an elastic member disposed between the outer casing and the frame and pressing the frame. The photographic module of claim 20, wherein the frame is fixed to the outer casing in a state in which the frame is aligned with respect to the outer casing. The photographic module of claim 20, wherein the frame is fixed to the outer casing in a state in which the frame has a predetermined inclination with respect to the outer casing. The photographic module of claim 20, wherein the frame is fixed to the outer casing in a state where the position of the frame is adjusted such that an optical axis of a lens disposed in the lens barrel is perpendicular Aligned with the image forming surface of the image sensor disposed in the housing. A photographic module comprising: a frame accommodating a lens barrel; a housing in which the frame is disposed; and an elastic member pressing the frame toward a surface of the housing to cause a surface of the frame to The surface of the outer casing is closely adhered, wherein the frame is in a state where the frame is inclined with respect to the outer casing Supported by the elastic member such that a larger force is applied to a portion of the elastic member than the remaining portion of the elastic member, wherein the elastic member is deformed when the outer casing is attached to the frame And pressing the frame, and wherein the frame is moved relative to the outer casing with the frame coupled to the outer casing until the frame is secured to the outer casing. A method for aligning an optical axis of a photographic module, the method comprising: disposing a frame including a lens barrel in a housing for pressing against a surface of the housing by an elastic member; measuring the lens An inclined state of an optical axis of the lens in the lens barrel; moving at least a portion of the frame to correct the tilt state of the optical axis depending on whether the tilt state of the optical axis is within a predetermined range; The frame is fixed to the outer casing in a state where one surface of the frame and the one surface of the outer casing are closely adhered to each other when the inclined state of the optical axis is within the predetermined range . The method of claim 26, wherein the elastic member presses the frame to tightly adhere one surface of the frame to the outer casing when the frame is placed in the outer casing The one surface. The method of claim 26, wherein the measuring of the tilted state of the optical axis of the lens comprises checking whether the optical axis of the lens is perpendicular to being disposed in the housing The image of the image sensor forms the surface. The method of claim 26, wherein the measuring of the tilted state of the optical axis comprises measuring the optical axis and orthogonal to an image sensor disposed in the housing The angle between the lines of the image forming surface. The method of claim 26, wherein the measuring of the tilted state of the optical axis comprises measuring a plane parallel to an image forming surface of an image sensor disposed in the housing The angle between one surface of the frame. The method of claim 26, wherein when the tilt state of the optical axis is outside the predetermined range, the frame is in the tilt state of the optical axis by moving the The portion of the frame is calibrated to be secured to the outer casing after being within the predetermined range. The method of claim 26, wherein the portion of the frame is moved in a state where the remaining portion of the frame is fixed in order to correct the tilted state of the optical axis. A method for aligning an optical axis of a photographic module, the method comprising: disposing a frame including a lens barrel in a housing for pressing against a surface of the housing by an elastic member; measuring the lens An inclined state of an optical axis of the lens in the lens barrel; and after moving at least a portion of the frame to correct the tilt state of the optical axis of the lens depending on the tilt state of the optical axis The frame is closely adhered to each other on one surface of the frame and the one surface of the outer casing when the inclined state of the optical axis is within the predetermined range It is fixed to the outer casing in a state. A portable electronic device comprising: the camera module according to claim 1; and a body portion coupled to the camera module. A photographic module comprising: a frame for a lens barrel; a housing accommodating the frame; and an elastic member disposed between the frame and a surface of the housing and configured to be elastically Momentally pressing the frame against the other surface of the outer casing, wherein when the outer casing is attached to the frame, the elastic member deforms and presses the frame, and wherein the frame is coupled to In the case of the outer casing, the frame is moved relative to the outer casing until the frame is fixed to the outer casing. The photographic module of claim 35, wherein at least one side surface of the frame is disposed to be spaced apart from at least one side inner surface of the outer casing. The photographic module of claim 35, wherein the outer casing comprises one or more openings that expose the frame to an exterior of the outer casing. The photographic module of claim 35, wherein: one or more protruding portions are formed on a surface of the frame; and one or more supporting portions are formed on the outer casing corresponding to the protruding portions of On the other surface.