CN118330974A

CN118330974A - Reflection module, camera module and portable electronic device

Info

Publication number: CN118330974A
Application number: CN202410034307.7A
Authority: CN
Inventors: 李泓周; 白在皓; 金圣熏
Original assignee: Samsung Electro Mechanics Co Ltd
Current assignee: Samsung Electro Mechanics Co Ltd
Priority date: 2023-01-11
Filing date: 2024-01-10
Publication date: 2024-07-12
Also published as: CN221804462U

Abstract

The present disclosure relates to a reflection module, a camera module, and a portable electronic device. The reflection module includes: a reflection member configured to change a path of light; a bracket on which a reflecting member is mounted; a housing accommodating the bracket; a first driver including a first magnet mounted on the bracket, a first coil opposite to the first magnet, and a first position sensor; and a second driver including a second magnet mounted on the bracket, a second coil opposite to the second magnet, and a second position sensor, wherein one side wall of the bracket and the other side wall of the bracket have different shapes.

Description

Reflection module, camera module and portable electronic device

Cross Reference to Related Applications

The present application claims the priority rights of korean patent application No. 10-2023-007959 filed on the korean intellectual property agency on month 20 of 2023 and korean patent application No. 10-2023-0004086 filed on the date 11 of 2023, the entire disclosures of which are incorporated herein by reference for all purposes.

Technical Field

The present disclosure relates to a reflection module, a camera module including the same, and a portable electronic device.

Background

The camera module may be basically used for portable electronic devices including smart phones. According to market demands, the thickness of the portable electronic device may tend to decrease, and thus, miniaturization of the camera module may be required.

In addition to the demand for miniaturization of the camera module, improvement in performance of the camera module may be required, and thus, the camera module may add functions such as an auto focus function and an optical image stabilization function, so that there may be a limit in reducing the size of the camera module.

That is, although miniaturization is required, it may be difficult to reduce the size of the camera module, and thus, there is a limit in reducing the thickness of the portable electronic device.

Recently, in order to solve the above-mentioned problems, a camera module including a plurality of lenses disposed along a length direction or a width direction of a portable electronic device instead of a thickness direction and a reflection member for changing a path of light has been proposed.

Since such a camera module may have a structure in which shake can be corrected by rotating the reflective member, it may be necessary to accurately sense the position of the reflective member to improve optical image stabilization performance.

The above information is presented as background information only to aid in the understanding of the present disclosure. No determination is made as to whether any of the above can be applied as prior art with respect to the present disclosure, and no assertion is made.

Disclosure of Invention

This summary is provided to introduce a selection of concepts in a simplified form that are further described below in the detailed description. This summary is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.

In one general aspect, a reflection module includes: a reflection member configured to change a path of light; a bracket on which a reflecting member is mounted; a housing accommodating the bracket; a first driver including a first magnet mounted on the bracket, a first coil opposite to the first magnet, and a first position sensor; and a second driver including a second magnet mounted on the bracket, a second coil opposite to the second magnet, and a second position sensor, wherein one side wall of the bracket and the other side wall of the bracket have different shapes.

Both a first magnet and a second magnet may be disposed on one side wall of the bracket.

In a state in which one first magnet and one second magnet are mounted, the center of gravity of the bracket may be disposed close to one of one side wall and the other side wall of the bracket.

The reflection module may further include a sensing magnet mounted on the bracket, wherein the first position sensor may include one or more hall sensors, and the second position sensor may include one or more hall sensors, one side of the one first magnet may have a first polarity portion and a second polarity portion in an optical axis direction, one side of the one second magnet may have a first polarity portion and a second polarity portion in a first axis direction, and the optical axis direction and the first axis direction may be perpendicular to each other, and may be perpendicular to a direction in which the one first magnet and the first coil are opposite to each other.

The size of the area of the portion of one second magnet in which the first polar portion is formed may be different from the size of the area of the portion in which the second polar portion is formed, the first position sensor may be opposite to the polar portion having a larger area among the polar portions of one second magnet, and the second position sensor may be disposed opposite to the sensing magnet and one first magnet.

The first position sensor may be opposite one of the first magnets, and the second position sensor may be disposed opposite one of the sensing magnets and one of the second magnets.

The first position sensor may include a plurality of hall sensors, and the plurality of hall sensors of the first position sensor may be spaced apart from each other in the optical axis direction.

The second position sensor may include a plurality of hall sensors, and the plurality of hall sensors of the second position sensor may be spaced apart from each other in the first axis direction.

The length of one first magnet in the first axial direction may be different from the length of one second magnet in the first axial direction.

The reflection module may further include a sensing magnet mounted on the bracket, the first position sensor may include a plurality of hall sensors, and the second position sensor may include a plurality of hall sensors, one side of one first magnet may have a first polarity portion, a second polarity portion, and a first polarity portion along the optical axis direction, one side of one second magnet may have a first polarity portion and a second polarity portion along the first axis direction, and the optical axis direction and the first axis direction may be perpendicular to each other, and may be perpendicular to a direction in which one first magnet and one first coil are opposite to each other.

The two first polar parts of one first magnet may have areas having different sizes, the first position sensor may be opposite to the second polar part of one first magnet and the first polar part having a smaller area of the two first polar parts of one first magnet, and the second position sensor may be disposed opposite to the sensing magnet and the one second magnet.

The plurality of hall sensors of the first position sensor may be spaced apart from each other in the optical axis direction, and the plurality of hall sensors of the second position sensor may be spaced apart from each other in the first axis direction.

The reflection module may further include a sensing magnet mounted on the bracket, the first position sensor may include one or more hall sensors, and the second position sensor may include a plurality of hall sensors, one side of one first magnet may have a first polarity portion and a second polarity portion along the optical axis direction, one side of one second magnet may have a first polarity portion, a second polarity portion and a first polarity portion along the first axis direction, and the optical axis direction and the first axis direction may be perpendicular to each other, and may be perpendicular to a direction in which one first magnet and one first coil are opposite to each other.

The two first polar parts of one second magnet may have areas having different sizes, the second position sensor may be opposite to the second polar part of one second magnet and the first polar part having the smaller area of the two first polar parts of one second magnet, and the first position sensor may be disposed opposite to the sensing magnet.

The portable electronic device may include a reflective module.

In another general aspect, a camera module includes: a lens module including a plurality of lenses disposed along an optical axis; a housing configured to house the lens module; a reflection module disposed at a front side of the lens module and including a reflection member configured to change a path of light and a bracket on which the reflection member is mounted; a first driver including a first magnet mounted on the bracket, a first coil opposite to the first magnet, and a first position sensor; and a second driver including a second magnet mounted on the bracket, a second coil opposite to the second magnet, and a second position sensor, wherein the reflection module is configured to rotate with respect to first and second axes as rotation axes, the first and second axes being perpendicular to the optical axis and to each other, and wherein a center of gravity of the reflection module is disposed close to one of one side wall and the other side wall of the bracket in a state in which the first magnet and the second magnet are mounted.

The camera module may further include a sensing magnet mounted on the bracket, the first position sensor may be configured to sense a change in a position of the reflection module rotated with respect to a first axis as the rotation axis, and may include one or more hall sensors, the second position sensor may be configured to sense a change in a position of the reflection module rotated with respect to a second axis as the rotation axis, and may include a plurality of hall sensors, and the plurality of hall sensors of the second position sensor may be spaced apart from each other along the first axis.

The portable electronic device may include a camera module.

In another general aspect, a reflection module includes: a reflection member configured to change a path of light; and a holder on which the reflecting member is mounted and having a first side wall and a second side wall, wherein a first driving magnet configured to drive the holder in an optical axis direction is provided on one of the first side wall and the second side wall, and the other of the first side wall and the second side wall is free of the first driving magnet, wherein a second driving magnet configured to drive the holder in a first axis direction perpendicular to the optical axis direction is provided on the one of the first side wall and the second side wall, and the other of the first side wall and the second side wall is free of the second driving magnet, and wherein the first driving coil and the second driving coil are provided opposite to the first driving magnet and the second driving magnet in a second axis direction perpendicular to the optical axis direction and the first axis direction.

The portable electronic device may include a camera module having: a lens module including a plurality of lenses disposed along an optical axis; a housing configured to house the lens module; and a reflection module disposed at a front side of the lens module.

Other features and aspects will be apparent from the following detailed description, the drawings, and the claims.

Drawings

Fig. 1 is a perspective view illustrating a portable electronic device having a camera module mounted thereon according to an embodiment of the present disclosure.

Fig. 2 is a perspective view illustrating a camera module according to an embodiment of the present disclosure.

Fig. 3 is an exploded perspective view illustrating a camera module according to an embodiment of the present disclosure.

Fig. 4 is an exploded perspective view illustrating a housing and a reflection module according to an embodiment of the present disclosure.

Fig. 5 is a perspective view illustrating a reflection module according to an embodiment of the present disclosure.

Fig. 6 is a perspective view of the example of fig. 5, viewed in a different direction.

Fig. 7 is a diagram showing a first driver and a second driver according to the first embodiment.

Fig. 8 is a diagram showing a first driver and a second driver according to a second embodiment.

Fig. 9 is a diagram showing a first driver and a second driver according to a third embodiment.

Fig. 10 is a diagram showing a first driver and a second driver according to a fourth embodiment.

Fig. 11 is a diagram showing a first driver and a second driver according to a fifth embodiment.

Fig. 12 is a perspective view illustrating a reflection module, a first driver, and a second driver according to a sixth embodiment.

Fig. 13A and 13B are diagrams showing a first driver and a second driver, respectively, according to another embodiment.

Fig. 14 is a perspective view illustrating a state in which a lens module is separated from a camera module according to an embodiment of the present disclosure.

Like numbers refer to like elements throughout the drawings and detailed description. The drawings may not be to scale and the relative sizes, proportions and descriptions of elements in the drawings may be exaggerated for clarity, illustration and convenience.

Detailed Description

Hereinafter, although examples of the present disclosure will be described in detail with reference to the accompanying drawings, it is to be noted that examples are not limited thereto.

The following detailed description is provided to assist the reader in obtaining a thorough understanding of the methods, apparatus, and/or systems described herein. However, various changes, modifications, and equivalents of the methods, devices, and/or systems described herein will be apparent after an understanding of the present disclosure. For example, the order of operations described herein is merely an example and is not limited to the order set forth herein, but may be altered as will be apparent after an understanding of the disclosure, except for operations that must occur in a certain order. In addition, descriptions of features known in the art may be omitted for the sake of clarity and conciseness.

The features described herein may be implemented in different forms and are not to be construed as limited to the examples described herein. Rather, the examples described herein are provided merely to illustrate some of the many possible ways to implement the methods, devices, and/or systems described herein that will be apparent upon an understanding of the present disclosure.

Throughout the specification, when an element (such as a layer, region or substrate) is referred to as being "on," "connected to" or "coupled to" another element, it can be directly on, connected to or coupled to the other element or one or more other elements intervening therebetween. In contrast, when an element is referred to as being "directly on," "directly connected to," or "directly coupled to" another element, there are no other elements intervening therebetween.

As used herein, the term "and/or" includes any one of the associated listed items and any combination of any two or more of the associated listed items; likewise, "at least one of …" includes any one of the associated listed items and any combination of any two or more of the associated listed items.

Although terms such as "first," "second," and "third" may be used herein to describe various elements, components, regions, layers or sections, these elements, components, regions, layers or sections should not be limited by these terms. Rather, these terms are only used to distinguish one element, component, region, layer or section from another element, component, region, layer or section. Thus, a first member, first component, first region, first layer, or first portion mentioned in examples described herein may also be referred to as a second member, second component, second region, second layer, or second portion without departing from the teachings of the examples.

Spatially relative terms, such as "above," "upper," "lower," and the like, may be used herein for ease of description to describe one element's relationship to another element as illustrated in the figures. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "upper" relative to another element would then be "below" or "lower" relative to the other element. Thus, the term "above" includes both above and below orientations, depending on the spatial orientation of the device. The device may also be oriented in other ways (e.g., rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

The terminology used herein is for the purpose of describing various examples only and is not intended to be limiting of the disclosure. The terms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," and "having" specify the presence of stated features, amounts, operations, components, elements, and/or combinations thereof, but do not preclude the presence or addition of one or more other features, amounts, operations, components, elements, and/or groups thereof.

The shapes of the illustrations as a result of manufacturing techniques and/or tolerances, are to be expected to vary. Accordingly, examples described herein are not limited to the particular shapes shown in the drawings, but include shape changes that occur during manufacture.

In this context, it is noted that the term "may" is used with respect to an example, for example with respect to what an example may include or implement, meaning that there is at least one example that includes or implements this feature, and that all examples are not limited thereto.

As will be apparent after an understanding of the present disclosure, the features of the examples described herein may be combined in various ways. Further, while the examples described herein have a variety of configurations, other configurations are possible as will be apparent after an understanding of the present disclosure.

Embodiments of the present disclosure may provide a reflection module that may accurately sense a position of a reflection member. Embodiments of the present disclosure may provide a camera module including a reflection module that may accurately sense a position of a reflection member.

Fig. 1 is a perspective view illustrating a portable electronic device having a camera module mounted thereon according to an embodiment.

Referring to fig. 1, a camera module 1000 according to an embodiment may be mounted on a portable electronic device 1. The portable electronic device 1 may be configured as a portable electronic device such as a mobile communication terminal, a smart phone or a tablet PC.

As shown in fig. 1, a camera module 1000 may be mounted on a portable electronic device 1 to photograph a subject.

In this embodiment, the camera module 1000 may include a plurality of lenses. The optical axes (Z-axis) of the plurality of lenses may be directed in a direction perpendicular to the thickness direction of the portable electronic device 1 (X-axis direction, direction from the front surface to the rear surface of the portable electronic device 1, or vice versa).

For example, optical axes (Z-axis) of a plurality of lenses provided in the camera module 1000 may be formed in the width direction or the length direction of the portable electronic device 1.

Therefore, even when the camera module 1000 has functions such as an auto focus (hereinafter referred to as AF) function, an optical zoom (hereinafter referred to as zoom) function, and an optical image stabilization (hereinafter referred to as OIS) function, the thickness of the portable electronic device 1 does not increase. Therefore, the thickness of the portable electronic device 1 can be reduced.

The camera module 1000 according to an embodiment may include at least one of AF, zoom, and OIS functions.

Since the camera module 1000 having AF, zoom, and OIS functions may need to include various components, the size of the camera module 1000 may be increased as compared to a general camera module.

When the size of the camera module 1000 increases, it may be difficult to miniaturize the portable electronic device 1 mounted with the camera module 1000.

For example, when a plurality of lenses are disposed along the thickness direction of the portable electronic device, the thickness of the portable electronic device may increase according to the number of lenses. Therefore, it may be necessary to increase the thickness of the portable electronic device to sufficiently secure the number of lenses.

However, since the optical axes (Z axis) of the plurality of lenses of the camera module 1000 are disposed perpendicular to the thickness direction (X axis direction) of the portable electronic device 1 in the embodiment, the thickness of the portable electronic device 1 can be reduced.

Fig. 2 is a perspective view illustrating a camera module according to an embodiment. Fig. 3 is an exploded perspective view illustrating a camera module according to an embodiment.

Referring to fig. 2 and 3, the camera module 1000 may include a housing 110, a reflection module 300, a lens module 400, and a case 130.

In the case 110, the reflection module 300 and the lens module 400 may be disposed from one side toward the other side. The housing 110 may have an inner space to accommodate the reflection module 300 and the lens module 400. The housing 110 may have a box shape with an open upper portion.

The image sensor module may be coupled to the housing 110.

As shown in fig. 2 and 3, the reflection module 300 and the lens module 400 may be disposed in the housing 110.

As another embodiment, the reflection module 300 may be disposed at the outside of the housing 110, and in this case, one side surface of the housing 110 may be opened so that light transmitted from the reflection module 300 passes through. In addition, the reflection module 300 disposed at the outside of the case 110 may be accommodated in another case.

The outer case 130 may be coupled to the case 110 to cover an upper portion of the case 110. The housing 130 may include an opening 131, and light is incident through the opening 131. The traveling direction of light incident through the opening 131 of the housing 130 may be changed by the reflection module 300 and may be incident to the lens module 400.

The reflection module 300 may be configured to change the traveling direction of light. For example, the traveling direction of light incident into the housing 110 may be changed toward the lens module 400 by the reflection module 300.

The reflection module 300 may include a reflection member 310 and a bracket 330 on which the reflection member 310 is mounted.

The reflection member 310 may be configured to change a traveling direction of light. For example, the reflecting member 310 may be configured as a mirror or a prism for reflecting light.

The path of light incident through the opening 131 of the housing 130 may be changed toward the lens module 400 by the reflection module 300. For example, the path of light incident in the thickness direction (X-axis direction) of the camera module 1000 may be changed by the reflection module 300 to substantially coincide with the optical axis direction (Z-axis direction).

When the reflection module 300 is disposed outside the housing 110, the reflection module 300 may further include a separate housing accommodating the bracket 330, and the first driver 500 and the second driver 600 providing driving force to the bracket 330 may be disposed in the separate housings.

The lens module 400 may include a plurality of lenses through which light whose traveling direction is changed by the reflection member 310 may pass, and a lens barrel accommodating the plurality of lenses.

The image sensor module may include an image sensor and a printed circuit board. The image sensor may be connected to the printed circuit board by bonding wires.

The image sensor module may further include an infrared cut filter. An infrared cut filter may be attached to the housing 110. The infrared cut filter may prevent light in the infrared region from passing through the lens module 400.

The reflection module 300 may be disposed at a front side (in-Z direction in fig. 3) of the lens module 400 with respect to the lens module 400, and the image sensor module may be disposed at a rear side (in +z direction in fig. 3) of the lens module 400.

Fig. 4 is an exploded perspective view illustrating a housing and a reflection module according to an embodiment. Fig. 5 is a perspective view illustrating a reflection module according to an embodiment. Fig. 6 is a perspective view of the example of fig. 5, viewed in a different direction.

Referring to fig. 4 to 6, the reflection module 300 may include a reflection member 310 and a bracket 330, wherein the reflection member 310 is mounted to the bracket 330.

The holder 330 may include a first sidewall 331 and a second sidewall 332 surrounding both side surfaces of the reflecting member 310. The first sidewall 331 may be disposed to surround one side surface of the reflective member 310, and the second sidewall 332 may be disposed to surround the other side surface of the reflective member 310.

Further, the bracket 330 may include a mounting surface on which the reflecting member 310 is mounted. The mounting surface may be disposed between the first sidewall 331 and the second sidewall 332, and the mounting surface may be configured as an inclined surface.

As an example, the mounting surface may be an inclined surface inclined by about 45 ° with respect to the optical axes (Z-axis) of the plurality of lenses. The reflective surface of the reflective member 310 may be coupled to the mounting surface of the bracket 330.

The first and second sidewalls 331 and 332 of the holder 330 may protrude in the optical axis (Z-axis) direction to surround the guide member 200 (see fig. 4). For example, the first and second sidewalls 331 and 332 of the holder 330 may protrude further than the first receiving groove 335 of the holder 330 in the optical axis (Z-axis) direction.

The reflection module 300 may be disposed in the inner space of the case 110 and may be pulled toward the case 110. For example, the reflection module 300 may be pulled toward the inner side surface of the housing 110 in the optical axis (Z-axis) direction.

For this, magnetic materials may be disposed in the housing 110 and the reflection module 300, respectively. At least one of the magnetic materials disposed in the housing 110 and the reflection module 300 may be a magnet. For example, the traction yoke 150 may be disposed in the housing 110, and the traction magnet 350 may be disposed in the reflection module 300. The pull yoke 150 and the pull magnet 350 may be disposed opposite to each other in the optical axis (Z-axis) direction. The pulling yoke 150 may be a magnetic material.

Accordingly, the traction yoke 150 and the traction magnet 350 may generate attractive force in the optical axis (Z-axis) direction, and thus, the reflection module 300 may be pressed toward the housing 110.

The mounting locations of the traction yoke 150 and the traction magnet 350 may be interchanged. As another embodiment, a traction magnet 350 may be mounted on each of the housing 110 and the reflection module 300.

The guide member 200 may be disposed at the front side of the bracket 330. The guide member 200 may be disposed between the inner side surface of the housing 110 and the bracket 330. For example, the guide member 200 may be disposed between an inner side surface of the housing 110 on which the traction yoke 150 may be disposed and the bracket 330 on which the traction magnet 350 may be disposed.

The guide member 200 may have a plate shape and may have a through hole 210 such that the traction yoke 150 and the traction magnet 350 may directly face each other.

Since the traction yoke 150 and the traction magnet 350 may be disposed to directly face each other, traction force of the reflection module 300 may be increased.

Since the attractive force acts between the traction yoke 150 and the traction magnet 350 in the optical axis (Z-axis) direction, the bracket 330 and the guide member 200 can be pressed toward the housing 110 in the optical axis (Z-axis) direction.

The first ball member B1 may be disposed between the guide member 200 and the bracket 330, and the second ball member B2 may be disposed between the housing 110 and the guide member 200.

The first ball member B1 may include a plurality of ball members spaced apart from each other along a first axis (X axis), and the second ball member B2 may include a plurality of ball members spaced apart from each other along a second axis (Y axis).

The first ball member B1 may form a rotation axis of the bracket 330 when the bracket 330 rotates with respect to the guide member 200. The second ball member B2 may form a rotation axis of the guide member 200 when the guide member 200 rotates with respect to the housing 110.

The first ball member B1 may be in contact with the guide member 200 and the bracket 330, and the second ball member B2 may be in contact with the housing 110 and the guide member 200 due to attractive force between the traction yoke 150 and the traction magnet 350.

A receiving groove in which the first ball member B1 is received may be provided on a surface of the guide member 200 and the bracket 330 that may be opposite to each other. For example, the first and second receiving grooves 335 and 230 may be provided on surfaces of the guide member 200 and the bracket 330 that may be opposite to each other in the optical axis (Z-axis) direction, and the first ball member B1 may be provided between the first and second receiving grooves 335 and 230.

Each of the first and second receiving grooves 335 and 230 includes a plurality of receiving grooves spaced apart from each other along a first axis (X-axis).

A receiving groove in which the second ball member B2 is received may be provided on surfaces of the housing 110 and the guide member 200 that may be opposite to each other. For example, the third receiving groove 250 and the fourth receiving groove 140 may be provided on surfaces of the housing 110 and the guide member 200 that may be opposite to each other in the optical axis (Z-axis) direction, and the second ball member B2 may be provided between the third receiving groove 250 and the fourth receiving groove 140.

Each of the third receiving groove 250 and the fourth receiving groove 140 includes a plurality of receiving grooves spaced apart from each other along the second axis (Y-axis).

The camera module 1000 according to the embodiment may correct shake during photographing by rotating the reflection module 300.

For example, when shake occurs during photographing, the shake may be corrected by applying a relative displacement corresponding to the shake to the reflection module 300.

The reflective module 300 is rotatable with respect to a first axis (X-axis) and a second axis (Y-axis). For example, the reflection module 300 may rotate with respect to the guide member 200 using a first axis (X-axis) as a rotation axis. Further, the reflection module 300 may rotate with the guide member 200 with respect to the housing 110 using a second axis (Y axis) as a rotation axis.

The first ball member B1 may be disposed between the guide member 200 and the reflection module 300, and the first ball member B1 may include a plurality of ball members disposed along a first axis (X axis). Accordingly, the reflection module 300 may be rotated with the first axis (X axis) as a rotation axis while being supported by the first ball member B1.

Since the first ball member B1 includes a plurality of ball members disposed along a first axis (X axis), the reflection module 300 may rotate with respect to the guide member 200 with the first axis (X axis) as a rotation axis. The rotation of the reflection module 300 with respect to the guide member 200 with the second axis (Y axis) as the rotation axis may be restricted.

The second ball member B2 may be disposed between the housing 110 and the guide member 200, and the second ball member B2 may include a plurality of ball members disposed along a second axis (Y axis). Accordingly, the guide member 200 can be rotated using the second shaft (Y-axis) as a rotation shaft while being supported by the second ball member B2.

Since the second ball member B2 includes a plurality of ball members disposed along the second axis (Y axis), the guide member 200 may rotate with respect to the housing 110 with the second axis (Y axis) as a rotation axis. The guide member 200 may be restricted from rotating relative to the housing 110 with the first axis (X axis) as a rotation axis.

Here, when the guide member 200 rotates with the second axis (Y axis) as a rotation axis, the reflection module 300 together with the guide member 200 may rotate with respect to the housing 110 with the second axis (Y axis) as a rotation axis.

A driver may be provided to rotate the reflective module 300. For example, the camera module 1000 according to the embodiment may include a first driver 500 and a second driver 600, wherein the first driver 500 rotates the reflection module 300 with a first axis (X-axis) as a rotation axis, and the second driver 600 rotates the reflection module 300 with a second axis (Y-axis) as a rotation axis.

The first driver 500 may include a first magnet 510 and a first coil 530.

The first magnet 510 may be mounted on the reflection module 300. For example, the first magnet 510 may be disposed on one sidewall (e.g., the first sidewall 331) of the bracket 330.

The first coil 530 may be disposed opposite to the first magnet 510 in a direction perpendicular to the optical axis (Z-axis) direction. For example, the case 110 may include a through hole in which the first coil 530 may be disposed, and the first coil 530 may be disposed in the through hole to be opposite to the first magnet 510 in the second axis (Y axis) direction. The first coil 530 may be disposed on the substrate 800 coupled to the case 110.

The first magnet 510 may refer to a magnet provided on one sidewall of the bracket 330, and the first coil 530 may refer to a coil provided on the housing 110.

The second driver 600 may include a second magnet 610 and a second coil 630.

The second magnet 610 may be mounted on the reflection module 300. For example, the second magnet 610 may be disposed on one sidewall (e.g., the first sidewall 331) of the bracket 330.

The second coil 630 may be disposed opposite the second magnet 610 in a direction perpendicular to the optical axis (Z-axis) direction. For example, the case 110 may include a through hole in which the second coil 630 may be disposed, and the second coil 630 may be disposed in the through hole to be opposite to the second magnet 610 in the second axis (Y axis) direction. The second coil 630 may be disposed on the substrate 800 coupled to the housing 110.

The second magnet 610 may refer to a magnet provided on one sidewall of the bracket 330, and the second coil 630 may refer to a coil provided on the housing 110.

The reflection module 300 may rotate using a first axis (X axis) as a rotation axis, and the reflection module 300 and the guide member 200 may rotate together using a second axis (Y axis) as a rotation axis.

For example, the reflection module 300 may rotate left and right using a first axis (X axis) as a rotation axis, and may rotate up and down using a second axis (Y axis) as a rotation axis.

The camera module 1000 according to an embodiment may sense the position of the reflection module 300.

Accordingly, the first and second position sensors 550 and 650 may be provided to sense the position of the reflection module 300.

In an embodiment, both the first magnet 510 and the second magnet 610 may be disposed on one sidewall of the reflection module 300.

That is, the first and second magnets 510 and 610 may be disposed on only one of the first and second sidewalls 331 and 332 of the reflection module 300. In an embodiment, the first magnet 510 and the second magnet 610 may be disposed on the first sidewall 331 of the reflection module 300.

In the first sidewall 331, a seating groove 333 for coupling the first magnet 510 to the second magnet 610 may be formed. Since no magnet is mounted on the second side wall 332, the first side wall 331 and the second side wall 332 may have different shapes when viewed in the second axis (Y axis) direction.

Since both the first magnet 510 and the second magnet 610 are disposed only on the first sidewall 331, the center of gravity of the reflection module 300 may be formed closer to the first sidewall 331 than the second sidewall 332 when the first magnet 510 and the second magnet 610 are mounted.

In another embodiment, the first magnet 510 may be disposed on one sidewall of the reflection module 300, and the second magnet 610 may be disposed on the other sidewall of the reflection module 300.

For example, the first magnet 510 may be disposed on the first sidewall 331 of the reflection module 300, and the second magnet 610 may be disposed on the second sidewall 332 of the reflection module 300.

The size of the first magnet 510 and the size of the second magnet 610 may be differently formed.

In a state in which the first magnet 510 and the second magnet 610 are installed, the center of gravity of the reflection module 300 may be formed closer to the first sidewall 331 or the second sidewall 332. For example, the center of gravity of the reflection module 300 may be formed closer to a magnet having a larger size of the first and second magnets 510 and 610.

In addition, since the size of the first magnet 510 and the size of the second magnet 610 are differently formed, the shape of the seating groove 333 of the reflection module 300 for mounting the magnets may also be different. Accordingly, the first and second sidewalls 331 and 332 may have different shapes when viewed in the second axis (Y-axis) direction.

Referring to fig. 7, the first driver 500 may include a first magnet 510 and a first coil 530, and the second driver 600 may include a second magnet 610 and a second coil 630. Fig. 7 shows an example in which the first magnet 510 and the first coil 530 overlap each other and the second magnet 610 and the second coil 630 overlap each other when viewed in the second axis (Y axis) direction.

Each of the first magnet 510 and the second magnet 610 may include one magnet. Both the first magnet 510 and the second magnet 610 may be disposed on the first sidewall 331 of the reflection module 300. As another embodiment, the first magnet 510 may be disposed on the first sidewall 331 of the reflection module 300, and the second magnet 610 may be disposed on the second sidewall 332 of the reflection module 300.

The first coil 530 may be disposed opposite to the first magnet 510 in the second axis (Y-axis) direction, and the second coil 630 may be disposed opposite to the second magnet 610 in the second axis (Y-axis) direction.

The side of the first magnet 510 opposite to the first coil 530 may have a first polarity portion 511, a second polarity portion 513, and a first polarity portion 511 magnetized along the optical axis (Z-axis) direction.

For example, one side of the first magnet 510 may have a first polarity portion 511, a second polarity portion 513, and a first polarity portion 511 in this order in the optical axis (Z axis) direction. The first polarity portion 511 may be an N-pole or an S-pole, and the second polarity portion 513 may have a polarity opposite to that of the first polarity portion 511. A neutral region may be formed between the first polarity portion 511 and the second polarity portion 513.

The two first polarity parts 511 of the first magnet 510 may have areas of different sizes. For example, the area of the portion on one side of the first magnet 510 in which one of the two first polarity portions 511 is formed may be larger than the area of the portion in which the other of the two first polarity portions 511 is formed.

The first coil 530 may be disposed opposite to one of the two first polarity parts 511 and the second polarity part 513. That is, the first coil 530 may not be opposite to the other first polarity portion 511 of the two first polarity portions 511.

For example, the first coil 530 may be opposite to the first polar part 511 having a larger area among the two first polar parts 511 of the first magnet 510.

The first magnet 510 and the first coil 530 may generate a driving force in a direction perpendicular to a direction opposite to each other. For example, the first magnet 510 and the first coil 530 may generate a driving force in the optical axis (Z axis) direction.

Accordingly, the reflection module 300 may be rotated with the first axis (X axis) as a rotation axis by the driving force of the first magnet 510 and the first coil 530.

On the opposite side of the second magnet 610 from the second coil 630, the first and second polar parts 611 and 613 may be magnetized in a direction perpendicular to the optical axis (Z-axis) direction.

For example, one side of the second magnet 610 may have a first polar part 611 and a second polar part 613 in order in the first axis (X axis) direction. The first polarity portion 611 may be configured without an N-pole or an S-pole, and the second polarity portion 613 may have a polarity opposite to that of the first polarity portion 611. A neutral region may be formed between the first polarity portion 611 and the second polarity portion 613.

The second coil 630 may be disposed opposite the first and second polarity parts 611 and 613.

The second magnet 610 and the second coil 630 may generate a driving force in a direction perpendicular to a direction opposite to each other. For example, the second magnet 610 and the second coil 630 may generate a driving force in the first axis (X-axis) direction.

Accordingly, the reflection module 300 and the guide member 200 may be rotated with the second shaft (Y-axis) as a rotation axis by the driving force of the second magnet 610 and the second coil 630.

The first driver 500 and the second driver 600 may generate driving forces in directions perpendicular to each other.

The length of the first magnet 510 in the first axis (X-axis) direction may be longer than the length of the second magnet 610 in the first axis (X-axis) direction. The length of the first magnet 510 in the optical axis (Z axis) direction may be longer than the length of the second magnet 610 in the optical axis (Z axis) direction.

The length of the first coil 530 in the first axis (X-axis) direction may be longer than the length of the second coil 630 in the first axis (X-axis) direction.

The first driver 500 may further include a first position sensor 550, and the second driver 600 may further include a second position sensor 650.

When the reflection module 300 rotates with respect to the first axis (X-axis), the position of the reflection module 300 may be sensed by the first position sensor 550.

When the reflection module 300 rotates with respect to the second axis (Y-axis), the position of the reflection module 300 may be detected by the second position sensor 650.

The first position sensor 550 may be disposed opposite to the first magnet 510. For example, the first position sensor 550 may be opposite to the first magnet 510 in the second axis (Y-axis) direction.

The second driver 600 may further include a sensing magnet 670. The sensing magnet 670 may be disposed on the first sidewall 331 of the bracket 330 and may be spaced apart from the second magnet 610 in the first axis (X-axis) direction.

The second position sensor 650 may be disposed opposite the second magnet 610 and the sensing magnet 670. For example, the second position sensor 650 may be disposed opposite to the second magnet 610 and the sensing magnet 670 in the second axis (Y-axis) direction.

Each of the first and second position sensors 550 and 650 may include a plurality of hall sensors. For example, each of the first and second position sensors 550 and 650 may include two hall sensors.

For example, the first position sensor 550 may include two hall sensors 551 and 552 disposed in the optical axis (Z-axis) direction. One hall sensor 551 of the two hall sensors 551 and 552 of the first position sensor 550 may be opposite to the first polarity portion 511 of the first magnet 510, and the other hall sensor 552 may be opposite to the second polarity portion 513 of the first magnet 510.

The first polarity portion 511 of the first magnet 510 opposite to one of the two hall sensors 551 and 552 of the first position sensor 550 may be a first polarity portion 511 having a smaller area of the two first polarity portions 511 of the first magnet 510. For reference, the other of the two first polarity parts 511 of the first magnet 510 (the first polarity part having a larger area) may be opposite to the first coil 530.

When the reflection module 300 is rotated with respect to the first axis (X-axis) by the first driver 500, the distance between the first magnet 510 and the first position sensor 550 in the second axis (Y-axis) direction may also be changed.

In an embodiment, the first position sensor 550 may include two hall sensors 551 and 552, one hall sensor 551 of the two hall sensors 551 and 552 may be opposite to the first polarity portion 511 of the first magnet 510, and the other hall sensor 552 of the two hall sensors 551 and 552 may be opposite to the second polarity portion 513 of the first magnet 510.

Accordingly, when the distance between one of the two hall sensors 551 and 552 and the first polarity portion 511 decreases, the distance between the other one of the two hall sensors 551 and 552 and the second polarity portion 513 may increase (and vice versa).

Accordingly, the position of the reflection module 300 can be precisely measured by the change of the magnetic flux of the first magnet 510 sensed by each of the two hall sensors 551 and 552 of the first position sensor 550. Further, since the first position sensor 550 may include two hall sensors 551 and 552, an influence of disturbance such as a temperature change may be reduced when measuring the position of the reflection module 300.

The second position sensor 650 may include two hall sensors 651 and 652 disposed in a first axis (X-axis) direction. For example, one hall sensor 651 of the two hall sensors 651 and 652 of the second position sensor 650 may be disposed closer to the second magnet 610, and the other hall sensor 652 may be disposed closer to the sensing magnet 670.

When the reflection module 300 is rotated about the second axis (Y-axis) by the second driver 600, the two hall sensors 651 and 652 of the second position sensor 650 may become closer to one of the sensing magnet 670 and the second magnet 610, and may become further spaced apart from the other.

Accordingly, the position of the reflection module 300 can be precisely measured by the change in the magnetic flux of the sensing magnet 670 and the change in the magnetic flux of the second magnet 610 sensed by the two hall sensors 651 and 652 of the second position sensor 650, respectively. Further, since the second position sensor 650 may include two hall sensors 651 and 652, when measuring the position of the reflection module 300, an influence of disturbance such as a temperature change may be reduced.

Referring to fig. 8, the first driver 500 may include a first magnet 510 and a first coil 530, and the second driver 600 may include a second magnet 610 and a second coil 630. Fig. 8 shows an example in which the first magnet 510 and the first coil 530 overlap each other and the second magnet 610 and the second coil 630 overlap each other when viewed in the second axis (Y axis) direction.

The side of the first magnet 510 opposite to the first coil 530 may have a first polarity portion 511 and a second polarity portion 513 magnetized along the optical axis (Z-axis) direction.

For example, one side of the first magnet 510 may have a first polarity portion 511 and a second polarity portion 513 in order in the optical axis (Z axis) direction. The first polarity portion 511 may be an N-pole or an S-pole, and the second polarity portion 513 may have a polarity opposite to that of the first polarity portion 511. A neutral region may be formed between the first polarity portion 511 and the second polarity portion 513.

The first coil 530 may be disposed opposite the first and second polarity parts 511 and 513.

For example, one side of the second magnet 610 may have a first polar part 611 and a second polar part 613 in order in the first axis (X axis) direction. The first polarity portion 611 may be an N-pole or an S-pole, and the second polarity portion 613 may have a polarity opposite to that of the first polarity portion 611. A neutral region may be formed between the first polarity portion 611 and the second polarity portion 613.

The first polar part 611 and the second polar part 613 of the second magnet 610 may have areas of different sizes. For example, on one side of the second magnet 610, an area of a portion in which one of the first and second polar parts 611 and 613 is formed may be larger than an area of a portion in which the other polar part is formed.

The length of the second magnet 610 in the first axis (X-axis) direction may be longer than the length of the first magnet 510 in the first axis (X-axis) direction.

The position of the reflective module 300 may be sensed by the second position sensor 650 when the reflective module 300 rotates with respect to the second axis (Y-axis).

The first position sensor 550 may be disposed opposite to the second magnet 610. For example, the first position sensor 550 may be opposite to the second magnet 610 in the second axis (Y-axis) direction. The first position sensor 550 may be opposite to a polar part having a larger area among the first polar part 611 and the second polar part 613 of the second magnet 610.

The first position sensor 550 may include one or more hall sensors.

When the reflection module 300 is rotated with respect to the first axis (X-axis) by the first driver 500, the distance between the second magnet 610 and the first position sensor 550 in the second axis (Y-axis) direction may also be changed.

Accordingly, the position of the reflection module 300 may be precisely measured by the change of the magnetic flux of the second magnet 610 sensed by the first position sensor 550. In addition, when the first position sensor 550 includes a plurality of hall sensors, when the position of the reflection module 300 is measured, an influence of disturbance such as a temperature change can be reduced.

The second driver 600 may further include a sensing magnet 670. The sensing magnet 670 may be disposed on the first sidewall 331 of the bracket 330 and may be spaced apart from the first magnet 510 in the first axis (X-axis) direction.

The second position sensor 650 may be opposite the first magnet 510 and the sensing magnet 670. For example, the second position sensor 650 may be disposed opposite the first magnet 510 and the sensing magnet 670 in the second axis (Y-axis) direction. The portion of the first magnet 510 opposite to the second position sensor 650 may be one of the first polarity portion 511 and the second polarity portion 513 of the first magnet 510.

The second position sensor 650 may include a plurality of hall sensors. For example, the second position sensor 650 may include two hall sensors.

For example, the second position sensor 650 may include two hall sensors 651 and 652 disposed in the first axis (X-axis) direction. For example, one hall sensor 651 of the two hall sensors 651 and 652 of the second position sensor 650 may be disposed closer to the first magnet 510, and the other hall sensor 652 may be disposed closer to the sensing magnet 670.

When the reflection module 300 is rotated about the second axis (Y-axis) by the second driver 600, the two hall sensors 651 and 652 of the second position sensor 650 may become closer to one of the sensing magnet 670 and the first magnet 510, and may become further spaced apart from the other.

Accordingly, the position of the reflection module 300 can be precisely measured by the change in the magnetic flux of the sensing magnet 670 and the change in the magnetic flux of the first magnet 510 sensed by the two hall sensors 651 and 652 of the second position sensor 650, respectively. Further, since the second position sensor 650 may include two hall sensors 651 and 652, when measuring the position of the reflection module 300, an influence of disturbance such as a temperature change may be reduced.

Referring to fig. 9, the first driver 500 may include a first magnet 510 and a first coil 530, and the second driver 600 may include a second magnet 610 and a second coil 630. Fig. 9 shows an example in which the first magnet 510 and the first coil 530 overlap each other and the second magnet 610 and the second coil 630 overlap each other when viewed in the second axis (Y axis) direction.

The first magnet 510 and the second magnet 610 may each include one magnet. Both the first magnet 510 and the second magnet 610 may be disposed on the first sidewall 331 of the reflection module 300. As another embodiment, the first magnet 510 may be disposed on the first sidewall 331 of the reflection module 300, and the second magnet 610 may be disposed on the second sidewall 332 of the reflection module 300.

The side of the second magnet 610 opposite to the second coil 630 may have a first polar part 611, a second polar part 613, and a first polar part 611 magnetized in a direction perpendicular to the optical axis (Z-axis) direction.

For example, one side of the second magnet 610 may have a first polar part 611, a second polar part 613, and a first polar part 611 in this order in the first axis (X axis) direction. The first polarity portion 611 may be an N-pole or an S-pole, and the second polarity portion 613 may have a polarity opposite to that of the first polarity portion 611. A neutral region may be formed between the first polarity portion 611 and the second polarity portion 613.

The two first polar parts 611 of the second magnet 610 may have areas having different sizes. For example, on one side of the second magnet 610, an area of a portion in which one of the two first polarity portions 611 is formed may be larger than an area of a portion in which the other is formed.

The second coil 630 may be disposed opposite to one of the two first polarity parts 611 and the second polarity part 613. That is, the second coil 630 may not be opposite to the other one of the two first polarity parts 611.

For example, the second coil 630 may be opposite to the first polar part 611 having a larger area among the two first polar parts 611 of the second magnet 610.

Accordingly, the reflection module 300 may be rotated together with the guide member 200 using the second shaft (Y-axis) as a rotation shaft by the driving force of the second magnet 610 and the second coil 630.

The length of the second coil 630 in the first axis (X-axis) direction may be longer than the length of the first coil 530 in the first axis (X-axis) direction.

The first driver 500 may further include a sense magnet 570. The sensing magnet 570 may be disposed on the first sidewall 331 of the bracket 330 and may be spaced apart from the first magnet 510 in a first axis (X-axis) direction.

The first position sensor 550 may be disposed opposite the sensing magnet 570. For example, the first position sensor 550 may be opposite to the sensing magnet 570 in the second axis (Y axis) direction.

The first position sensor 550 may include one or more hall sensors.

When the reflection module 300 is rotated with respect to the first axis (X-axis) by the first driver 500, the distance between the first position sensor 550 and the sensing magnet 570 in the second axis (Y-axis) direction may also be changed.

Accordingly, the position of the reflection module 300 may be precisely measured by the change of the magnetic flux of the sensing magnet 570 sensed by the first position sensor 550. In addition, when the first position sensor 550 includes a plurality of hall sensors, when the position of the reflection module 300 is measured, an influence of disturbance such as a temperature change can be reduced.

The second position sensor 650 may be disposed opposite to the second magnet 610. For example, the second position sensor 650 may be disposed opposite to the second magnet 610 in the second axis (Y-axis) direction.

For example, the second position sensor 650 may include two hall sensors 651 and 652 disposed in the first axis (X-axis) direction. One hall sensor 652 of the two hall sensors 651 and 652 of the second position sensor 650 may be opposite to the first polarity portion 611 of the second magnet 610, and the other hall sensor 651 may be opposite to the second polarity portion 613 of the second magnet 610.

The first polar part 611 of the second magnet 610 opposite to one of the two hall sensors 651 and 652 of the second position sensor 650 may be the other first polar part 611 having a smaller area of the two first polar parts 611 of the second magnet 610. For reference, one first polar part 611 having a larger area among the two first polar parts 611 of the second magnet 610 may be opposite to the second coil 630.

When the reflection module 300 is rotated about the second axis (Y-axis) by the second driver 600, the two hall sensors 651 and 652 of the second position sensor 650 may be moved closer to one of the first and second polar parts 611 and 613 of the second magnet 610 and may be further spaced apart from the other.

Accordingly, the position of the reflection module 300 can be precisely measured by the change of the magnetic flux of the second magnet 610 sensed by the two hall sensors 651 and 652 of the second position sensor 650, respectively. Further, since the second position sensor 650 includes two hall sensors 651 and 652, when the position of the reflection module 300 is measured, the influence of disturbance such as temperature variation can be reduced.

Fig. 10 is a diagram showing a first driver and a second driver according to a fourth embodiment. Fig. 11 is a diagram showing a first driver and a second driver according to a fifth embodiment.

Referring to fig. 10 and 11, the first driver 500 may include a first magnet 510 and a first coil 530, and the second driver 600 may include a second magnet 610 and a second coil 630. Fig. 10 and 11 show an example in which the first magnet 510 and the first coil 530 overlap each other and the second magnet 610 and the second coil 630 overlap each other when viewed in the second axis (Y axis) direction.

The length of the first magnet 510 in the first axis (X-axis) direction may be longer than the length of the second magnet 610 in the first axis (X-axis) direction.

Each of the first and second position sensors 550 and 650 may include one or more hall sensors.

When the first position sensor 550 includes a plurality of hall sensors (e.g., two hall sensors 551 and 552), the plurality of hall sensors may be spaced apart from each other in the optical axis (Z-axis) direction. One hall sensor 551 may be opposite to the first polarity portion 511 of the first magnet 510, and the other hall sensor 552 may be opposite to the second polarity portion 513 of the first magnet 510 (see fig. 11).

When the second position sensor 650 includes a plurality of hall sensors (e.g., two hall sensors 651 and 652), the plurality of hall sensors may be spaced apart from each other in the first axis (X-axis) direction. One hall sensor 651 may be disposed close to the second magnet 610 and the other hall sensor 652 may be disposed close to the sensing magnet 670 (see fig. 11).

Accordingly, the position of the reflection module 300 may be precisely measured by the change of the magnetic flux of the first magnet 510 sensed by the first position sensor 550. In addition, when the first position sensor 550 includes a plurality of hall sensors, when the position of the reflection module 300 is measured, an influence of disturbance such as a temperature change can be reduced.

When the reflection module 300 is rotated about the second axis (Y-axis) by the second driver 600, the second position sensor 650 may be moved closer to one of the sensing magnet 670 and the second magnet 610, and may be further spaced apart from the other.

Accordingly, the position of the reflection module 300 may be precisely measured by sensing the change in the magnetic flux of the magnet 670 and the change in the magnetic flux of the second magnet 610 sensed by the second position sensor 650, respectively. In addition, when the second position sensor 650 includes a plurality of hall sensors, when the position of the reflection module 300 is measured, an influence of disturbance such as a temperature change can be reduced.

Fig. 12 is a perspective view illustrating a reflection module, a first driver, and a second driver according to a sixth embodiment. Fig. 13A and 13B are diagrams showing a first driver and a second driver, respectively, according to another embodiment.

Referring to fig. 12, the first magnet 510 may be disposed on one sidewall of the reflection module 300, and the second magnet 610 may be disposed on a lower surface of the reflection module 300.

For example, the first magnet 510 may be disposed on the first sidewall 331 of the reflection module 300, and the second magnet 610 may be disposed on the lower surface of the reflection module 300.

Referring to fig. 13A and 13B, the first driver 500 may include a first magnet 510 and a first coil 530, and the second driver 600 may include a second magnet 610 and a second coil 630. In fig. 13A, the first magnet 510 and the first coil 530 may overlap when viewed in the direction of the second axis (Y axis), and in fig. 13B, the second magnet 610 and the second coil 630 may overlap each other when viewed in the direction of the first axis (X axis).

The first magnet 510 and the second magnet 610 may each include a magnet.

The first coil 530 may be disposed opposite to the first magnet 510 in the second axis (Y-axis) direction, and the second coil 630 may be disposed opposite to the second magnet 610 in the first axis (X-axis) direction.

The side of the first magnet 510 opposite to the first coil 530 may have a first polarity portion 511 and a second polarity portion 513 magnetized in the optical axis (Z-axis) direction.

The side of the second magnet 610 opposite to the second coil 630 may have a first polar part 611 or a second polar part 613.

The second magnet 610 and the second coil 630 may generate a driving force in a direction opposite to each other. For example, the second magnet 610 and the second coil 630 may generate a driving force in the first axis (X-axis) direction.

The first position sensor 550 may include one or more hall sensors.

The second position sensor 650 may be disposed opposite to the second magnet 610. For example, the second position sensor 650 may be disposed opposite to the second magnet 610 in the first axis (X-axis) direction.

A plurality of second position sensors 650 may be provided, and each second position sensor 650 may include one or more hall sensors. For example, when two second position sensors 650 are provided, the two second position sensors 650 may be spaced apart from each other in the second axis (Y-axis) direction. The second coil 630 may be disposed between two second position sensors 650.

When the reflection module 300 is rotated with respect to the second axis (Y-axis) by the second driver 600, the distance between the second position sensor 650 and the second magnet 610 in the first axis (X-axis) direction may also be changed.

Accordingly, the position of the reflection module 300 may be precisely measured by the change of the magnetic flux of the second magnet 610 sensed by the second position sensor 650. Further, since two second position sensors 650 are provided, when the position of the reflection module 300 is measured, the influence of disturbance such as temperature variation can be reduced.

Fig. 14 is a perspective view illustrating a state in which a lens module is separated from a camera module according to an embodiment.

Referring to fig. 14, the reflection module 300 and the lens module 400 may be disposed in an inner space of the case 110. The lens module 400 may be disposed at the rear side of the reflection module 300.

The lens module 400 can be moved in the optical axis (Z axis) direction to perform focus adjustment.

The third driver 700 may be provided to move the lens module 400 in the optical axis (Z-axis) direction (see fig. 3).

The third driver 700 may include a third magnet 710 and a third coil 730.

The third magnet 710 may be mounted on the lens module 400. For example, the third magnet 710 may be disposed on a side surface of the lens module 400.

The third coil 730 may be disposed opposite to the third magnet 710 in a direction perpendicular to the optical axis (Z-axis) direction. For example, the case 110 may include a through hole in which the third coil 730 is disposed, and the third coil 730 may be disposed in the through hole and may be opposite to the third magnet 710 in the second axis (Y axis) direction. The third coil 730 may be disposed on the substrate 800 coupled to the case 110.

The third magnet 710 may include a plurality of magnets disposed on both side surfaces of the lens module 400, and the third coil 730 may also include a plurality of coils corresponding to the third magnet 710.

The third magnet 710 and the third coil 730 may generate a driving force in a direction perpendicular to a direction opposite to each other. For example, the third magnet 710 and the third coil 730 may generate a driving force in the optical axis (Z axis) direction.

Accordingly, the lens module 400 may be moved in the optical axis (Z-axis) direction by the driving force of the third magnet 710 and the third coil 730.

The third ball member B3 may be disposed between the lens module 400 and the housing 110, and the lens module 400 may move in an optical axis (Z axis) direction guided by the third ball member B3.

The third ball member B3 may include a first ball group BG1 and a second ball group BG2. The first and second ball groups BG1 and BG2 may be spaced apart from each other in a direction perpendicular to the optical axis (Z axis). For example, the first ball group BG1 and the second ball group BG2 may be spaced apart from each other in the second axis (Y axis) direction.

The first ball group BG1 may include two or more balls disposed in a direction parallel to the optical axis (Z axis), and the second ball group BG2 may include a smaller number of balls than the number of balls included in the first ball group BG 1.

The number of balls belonging to each ball group may be changed on the premise that the number of balls belonging to the first ball group BG1 is different from the number of balls belonging to the second ball group BG 2. Hereinafter, for convenience of description, an embodiment in which the first ball group BG1 includes two balls and the second ball group BG2 includes one ball will be described.

The traction magnet 410 may be disposed on a lower surface of the lens module 400, and the yoke member may be disposed on an inner bottom surface of the case 110. The yoke member may be disposed at a position opposite to the traction magnet 410 in the first axis (X-axis) direction.

The traction magnet 410 and the yoke member may create an attractive force therebetween. For example, the attractive force may act between the traction magnet 410 and the yoke member along the first axis (X-axis) direction.

The third ball member B3 may be in contact with each of the lens module 400 and the housing 110 due to attractive forces of the traction magnet 410 and the yoke member.

The guide groove may be provided on surfaces of the lens module 400 and the housing 110 opposite to each other. For example, the first guide groove g1 may be provided on one side of the surfaces of the lens module 400 and the housing 110 opposite to each other, and the second guide groove g2 may be provided on the other side of the surfaces of the lens module 400 and the housing 110 opposite to each other.

The first guide groove g1 and the second guide groove g2 may be spaced apart from each other in a direction perpendicular to the optical axis (Z-axis) (e.g., a second axis (Y-axis) direction).

The first guide groove g1 and the second guide groove g2 may extend in a direction parallel to the optical axis (Z axis).

The first ball group BG1 may be disposed in the first guide groove g1, and the second ball group BG2 may be disposed in the second guide groove g 2.

The number of contact points at which the plurality of balls included in the first ball group BG1 contact the first guide groove g1 may be greater than the number of contact points at which one or more balls included in the second ball group BG2 contact the second guide groove g 2.

The first ball group BG1 and the first guide groove g1 may serve as main guides that guide movement of the lens module 400 in the optical axis (Z axis) direction.

The second ball group BG2 and the second guide groove g2 may serve as auxiliary guides that support movement of the lens module 400 in the optical axis (Z axis) direction.

Referring to fig. 14, the traction magnet 410 may be disposed closer to the first ball group BG1 than the second ball group BG 2.

That is, the traction magnet 410 may be disposed closer to the main guide than the auxiliary guide.

In an embodiment, a third position sensor 750 may be provided to the camera module 1000 to sense the position of the lens module 400.

The third position sensor 750 may be configured as a hall sensor.

The third position sensor 750 may be disposed opposite to the third magnet 710.

According to the above embodiments, the reflection module and the camera module including the same can accurately sense the position of the reflection module.

While specific examples have been shown and described above, it will be apparent after an understanding of the present disclosure that various changes in form and details may be made therein without departing from the spirit and scope of the claims and their equivalents. The examples described herein are to be considered as illustrative only and not for the purpose of limitation. The descriptions of features or aspects in each example are considered to be applicable to similar features or aspects in other examples. Suitable results may also be obtained if the described techniques are performed in a different order and/or if components in the described systems, architectures, devices or circuits are combined in a different manner and/or are replaced or supplemented by other components or their equivalents. Therefore, the scope of the present disclosure is defined not by the detailed description but by the claims and their equivalents, and all changes within the scope of the claims and their equivalents are to be construed as being included in the present disclosure.

Claims

1. A reflective module, comprising:

A reflection member configured to change a path of light;

a bracket on which the reflecting member is mounted;

A housing accommodating the bracket;

A first driver including one first magnet mounted on the bracket, a first coil opposite to the one first magnet, and a first position sensor; and

A second driver including a second magnet mounted on the bracket, a second coil opposite to the second magnet, and a second position sensor,

Wherein one side wall of the bracket and the other side wall of the bracket have different shapes.

2. The reflectometry module of claim 1, wherein both the one first magnet and the one second magnet are disposed on the one sidewall of the bracket.

3. The reflection module according to claim 1, wherein a center of gravity of the bracket is disposed near one of the one side wall and the other side wall of the bracket in a state in which the one first magnet and the one second magnet are mounted.

4. The reflective module of claim 1, further comprising:

a sensing magnet mounted on the bracket,

Wherein the first position sensor comprises one or more hall sensors and the second position sensor comprises one or more hall sensors,

Wherein one side of the one first magnet has a first polar portion and a second polar portion along the optical axis direction,

Wherein one side of the one second magnet has a first polar portion and a second polar portion along a first axis direction, and

Wherein the optical axis direction and the first axis direction are perpendicular to each other and perpendicular to a direction in which the one first magnet and the first coil oppose each other.

5. The reflection module according to claim 4,

Wherein the size of the area of the portion of the one second magnet in which the first polarity portion is formed is different from the size of the area of the portion of the one second magnet in which the second polarity portion is formed,

Wherein the first position sensor is opposed to a polar portion having a larger area among the polar portions of the one second magnet, and

Wherein the second position sensor is disposed opposite the sensing magnet and the one first magnet.

6. The reflection module according to claim 4,

Wherein the first position sensor is opposite to the one first magnet, and

Wherein the second position sensor is disposed opposite the sensing magnet and the one second magnet.

7. The reflection module according to claim 4,

Wherein the first position sensor comprises a plurality of Hall sensors, and

Wherein the plurality of hall sensors of the first position sensor are spaced apart from each other in the optical axis direction.

8. The reflection module according to claim 4,

Wherein the second position sensor comprises a plurality of Hall sensors, and

Wherein the plurality of hall sensors of the second position sensor are spaced apart from each other in the first axis direction.

9. The reflection module of claim 4, wherein a length of the one first magnet in the first axis direction is different from a length of the one second magnet in the first axis direction.

10. The reflective module of claim 1, further comprising:

a sensing magnet mounted on the bracket,

Wherein the first position sensor comprises a plurality of Hall sensors and the second position sensor comprises a plurality of Hall sensors,

Wherein one side of the one first magnet has a first polar part, a second polar part and a first polar part along the optical axis direction,

11. The reflection module according to claim 10,

Wherein the two first polar parts of the one first magnet have areas having different sizes,

Wherein the first position sensor is opposed to the second polar portion of the one first magnet and the first polar portion of the two first polar portions of the one first magnet having a smaller area, and

12. The reflection module according to claim 11,

Wherein the plurality of hall sensors of the first position sensor are spaced apart from each other in the optical axis direction, and

13. The reflective module of claim 1, further comprising:

a sensing magnet mounted on the bracket,

Wherein the first position sensor comprises one or more hall sensors and the second position sensor comprises a plurality of hall sensors,

Wherein one side of the one second magnet has a first polar part, a second polar part and a first polar part along a first axial direction, and

14. The reflection module according to claim 13,

Wherein the two first polar parts of the one second magnet have areas having different sizes,

Wherein the second position sensor is opposed to the second polar portion of the one second magnet and the first polar portion of the two first polar portions of the one second magnet having a smaller area, and

Wherein the first position sensor is disposed opposite the sensing magnet.

15. A portable electronic device comprising a reflection module according to any one of claims 1 to 14.

16. A camera module, comprising:

a lens module including a plurality of lenses disposed along an optical axis;

a housing configured to house the lens module;

A reflection module disposed at a front side of the lens module and including a reflection member configured to change a path of light and a bracket on which the reflection member is mounted;

Wherein the reflection module is configured to rotate with respect to a first axis and a second axis as rotation axes, the first axis and the second axis being perpendicular to the optical axis and to each other, and

Wherein in a state in which the one first magnet and the one second magnet are mounted, a center of gravity of the reflection module is disposed close to one of one side wall and the other side wall of the bracket.

17. The camera module of claim 16, further comprising:

a sensing magnet mounted on the bracket,

Wherein the first position sensor is configured to sense a change in a position of the reflection module rotated with respect to the first axis as a rotation axis, and includes one or more hall sensors,

Wherein the second position sensor is configured to sense a change in the position of the reflection module rotating with respect to the second axis as a rotation axis, and includes a plurality of hall sensors, and

Wherein the plurality of hall sensors of the second position sensor are spaced apart from one another along the first axis.

18. A portable electronic device comprising a camera module according to claim 16 or 17.

19. A reflective module, comprising:

a reflection member configured to change a path of light; and

A bracket, the reflecting member being mounted on a mounting surface of the bracket and including a first side wall and a second side wall,

Wherein a first driving magnet configured to drive the holder in an optical axis direction is provided on one of the first side wall and the second side wall, and the other of the first side wall and the second side wall is free from the first driving magnet,

Wherein a second driving magnet configured to drive the holder in a first axial direction perpendicular to the optical axis direction is provided on the one of the first and second side walls, and the other of the first and second side walls is free of the second driving magnet, and

Wherein a first drive coil and a second drive coil are disposed opposite the first drive magnet and the second drive magnet in a second axial direction perpendicular to the optical axis direction and the first axial direction.

20. A portable electronic device, comprising:

A camera module, comprising:

a lens module including a plurality of lenses disposed along an optical axis,

A housing configured to house the lens module, and

The reflective module of claim 19, disposed on a front side of the lens module.