Reflection module and camera module for optical image stabilization

Abstract

The present invention provides a reflection module and a camera module for optical image stabilization. The reflection module for optical image stabilization includes: a housing including an internal space; a rotation holding member disposed in the internal space and including a reflection member; a rotation plate rotatably disposed between the housing of the reflection module and the rotation holding member and configured to rotatably support the rotation holding member; and a driving unit configured to apply a driving force for rotating the rotation holding member.

Description

[0001] This application is a divisional application of the invention patent application "Reflection module for optical image stabilization and camera module including the same" with an application date of February 8, 2018 and an application number of 201810127401.1. Technical Field

[0002] This application relates to a reflection module for optical image stabilization (OIS) and a camera module including the reflection module. Background Art

[0003] Camera modules have become a standard feature of portable electronic devices such as tablet personal computers (PCs), laptop PCs, and smart phones, and autofocus functions, optical image stabilization (OIS) functions, and zoom functions are some of the functions that have been implemented in camera modules for mobile terminals.

[0004] However, in order to implement such functions, the structure of such camera modules has become relatively complex, and the size of such camera modules has increased, making it difficult to install such camera modules in portable electronic devices.

[0005] In addition, when directly moving a lens or an image sensor for the purpose of optical image stabilization, both the weight of the lens or the image sensor itself and the weight of other components to which the lens or the image sensor is attached should be considered, and thus, a driving force of a predetermined level or greater is required, resulting in increased power consumption. Summary of the Invention

[0006] The present invention content is provided to introduce selected concepts in a simplified form, and the concepts are further described below in the detailed description. The present invention content is not intended to identify the key features or essential features of the claimed subject matter, nor is it intended to be used to assist in determining the scope of the claimed subject matter.

[0007] In one general aspect, there is provided a reflection module for optical image stabilization, the reflection module including: a housing including an internal space; a rotation holder disposed in the internal space and including a reflection member; a rotation plate rotatably disposed between the housing of the reflection module and the rotation holder and configured to rotatably support the rotation holder; and a driving unit configured to apply a driving force for rotating the rotation holder.

[0008] The rotation holder may be configured to be rotatable about first and second axes perpendicular to each other, and wherein the first and second axes are parallel to a plane defined by a height direction and a width direction of the rotation plate.

[0009] The reflection module may further include: a first support member disposed on a first surface of the rotating plate and configured to form the first axis; and a second support member disposed on a second surface of the rotating plate opposite to the first surface and configured to form the second axis.

[0010] The first support member may include a plurality of first support protrusions arranged along the direction of the first axis, and wherein the second support member may include a plurality of second support protrusions arranged along the direction of the second axis, wherein the first support protrusions and the second support protrusions are spherical, hemispherical or spherical cap-shaped.

[0011] The housing of the reflection module may include a first guiding groove, at least a part of the first support member being received in the first guiding groove, and wherein the rotation retaining member may include a second guiding groove, at least a part of the second support member being received in the second guiding groove.

[0012] The driving part may include a first driving magnet and a first driving coil, the first driving magnet and the first driving coil being arranged to face each other in a direction parallel to the first axis, wherein the first driving magnet is disposed on the rotation retaining member, and wherein the first driving coil is disposed in the housing of the reflection module.

[0013] The driving part may further include a second driving magnet and a second driving coil, the second driving magnet and the second driving coil being arranged to face each other in a direction parallel to the second axis, wherein the second driving magnet is disposed on the rotation retaining member, and wherein the second driving coil is disposed in the housing of the reflection module.

[0014] The reflection module may further include: a position sensor disposed inside the first driving coil and inside the second driving coil for detecting the position of the rotation retaining member.

[0015] The housing of the reflection module may include a through hole, and wherein the first driving coil and the second driving coil are exposed to the internal space of the housing of the reflection module through the through hole.

[0016] The reflection module may further include: a first magnetic member configured to move together with the rotation retaining member; a second magnetic member disposed in the housing of the reflection module and facing the first magnetic member; wherein the rotation retaining member is supported in the housing of the reflection module by the magnetic force between the first magnetic member and the second magnetic member.

[0017] The rotary holder may further include an inclined mounting surface on which the reflecting member is disposed, and wherein the reflecting member is a mirror or a prism.

[0018] The rotary plate may be integrally defined within the internal space of the housing of the reflection module; the rotary holder may be integrally located within the internal space of the housing of the reflection module; wherein, the first magnetic member and the second magnetic member face each other in the direction of the third axis, and the third axis is perpendicular to the first axis and the second axis.

[0019] The rotary holder may be supported within the housing of the reflection module in the direction of the third axis by the first support member and the second support member, and the third axis is perpendicular to the first axis and the second axis.

[0020] The rotary plate is rotatable relative to the housing of the reflection module about the first axis, and the rotary holder is rotatable relative to the rotary plate about the second axis.

[0021] When the rotary plate rotates about the first axis, the rotary holder rotates as the rotary plate rotates, and when the rotary holder rotates about the second axis, the rotary holder rotates relative to the rotary plate.

[0022] The first support member and the second support member may be provided integrally with the rotary plate.

[0023] The first axis and the second axis may be perpendicular to the optical axis, and the third axis may be parallel to the optical axis.

[0024] The driving unit may include: a first driving magnet disposed on a side surface of the rotary holder; and a second driving magnet disposed on a bottom surface of the rotary holder.

[0025] In another general aspect, there is provided a camera module including: the reflection module as described above; and a lens module including a lens configured to receive light emitted from the reflection module.

[0026] The lens module may further include: a lens holder that supports the lens and is capable of moving in a direction parallel to the optical axis of the lens; and a lens driving unit configured to apply a driving force for moving the lens holder, wherein the lens driving unit includes a third driving magnet and a third driving coil disposed opposite to each other.

[0027] The third driving magnet and the third driving coil may be arranged to face each other in a direction perpendicular to the optical axis, and wherein, the third driving magnet is provided on the lens holder, and the third driving coil is provided in the housing of the lens module.

[0028] The camera module may further include: a yoke, provided in the housing of the lens module and facing the third driving magnet, wherein the lens holder is supported in the housing of the lens module by the magnetic force between the third driving magnet and the yoke.

[0029] The camera module may further include: a ball member, provided between the lens holder and the housing of the lens module to guide the movement of the lens holder.

[0030] The camera module may further include: a cover, covering the housing of the reflection module and the housing of the lens module, and having an opening through which incident light travels.

[0031] The camera module may further include an image sensor module, the image sensor module including: an image sensor that converts light passing through the lens into an electrical signal; a printed circuit board on which the image sensor is mounted; and a filter that filters light incident from the lens module to the filter.

[0032] The reflection module may further include a first main board mounted on the housing of the reflection module, and a driving coil of the driving portion of the reflection module is mounted on the first main board, wherein the lens module further includes a second main board mounted on the housing of the lens module, and the third driving coil is mounted on the second main board.

[0033] The housing of the lens module may include a through hole, and the third driving coil is exposed to the interior of the housing of the lens module through the through hole.

[0034] In another general aspect, there is provided a reflection module for optical image stabilization, the reflection module including: a housing including an internal space; a rotation holder provided in the internal space of the housing and configured to support a reflection member for changing the path of incident light; and a driving portion configured to apply a driving force for rotating the rotation holder about first and second axes perpendicular to each other, wherein the first and second axes are perpendicular to the optical axis, and wherein the driving portion includes: a first driving magnet provided on a side surface of the rotation holder; and a second driving magnet provided on a bottom surface of the rotation holder.

[0035] The driving unit may further include: a first driving coil disposed in the housing and facing the first driving magnet; and a second driving coil disposed in the housing and facing the second driving magnet.

[0036] The reflection module may further include: a rotating plate disposed between the rotation holder and the housing to rotatably support the rotation holder, wherein the rotating plate includes: a plurality of first support protrusions disposed along a first direction; and a plurality of second support protrusions disposed along a second direction perpendicular to the first direction, and the first support protrusions and the second support protrusions are spherical, hemispherical or spherical crown-shaped.

[0037] Other features and aspects will be apparent from the following detailed description and the accompanying drawings. Description of the Drawings

[0038] Figure 1 is a perspective view showing an example of a portable electronic device.

[0039] Figure 2 is a perspective view showing an example of a camera module.

[0040] Figure 3A and Figure 3B is along Figure 2 in the lines IIIA-IIIA' and IIIB-IIIB' of Figure 2 the camera module, showing

[0041] Figure 4 is showing Figure 2 the exploded perspective view of the camera module.

[0042] Figure 5 is showing Figure 2 the perspective view of the housing of the camera module.

[0043] Figure 6A and Figure 6B is showing Figure 2 the exploded perspective view of an example of the rotating plate and the rotation holder of the camera module.

[0044] Figure 7 is showing Figure 2 the perspective view of the lens holder of the camera module.

[0045] Figure 8 is showing except Figure 2 the assembled perspective view of the components other than the cover in the camera module.

[0046] Figure 9 is showing Figure 2 the assembled perspective view of the housing and the plate in the camera module.

[0047] Figure 10 is an exploded perspective view of a housing and a rotation holder in a camera module shown Figure 2 .

[0048] Figures 11A to 11C is a cross-sectional view taken along line XIA-XIA' to line XIC-XIC' in Figure 10 , showing how the rotation holder of the camera module shown Figure 2 rotates about a first axis.

[0049] Figures 12A to 12C is a cross-sectional view taken along line XIIA-XIIA' to line XIIC-XIIC' in Figure 10 , showing how the rotation holder of the camera module shown Figure 2 rotates about a second axis.

[0050] Figure 13 is an exploded perspective view showing another example of a camera module.

[0051] Figure 14 is an exploded perspective view showing Figure 13 the engagement relationship between the housing and the rotation holder of the camera module shown

[0052] Figures 15A to 15C is a cross-sectional view showing Figure 13 how the rotation holder of the camera module shown

[0053] Figures 16A to 16C is a cross-sectional view showing Figure 13 how the rotation holder of the camera module shown

[0054] Figure 17 is an exploded perspective view showing another example of a camera module.

[0055] Figure 18 is an exploded perspective view showing Figure 17 the engagement relationship between the housing and the rotation holder of the camera module shown

[0056] Figures 19A to 19C is a cross-sectional view showing Figure 17 how the rotation holder of the camera module shown

[0057] Figures 20A to 20C is a cross-sectional view showing Figure 17 how the rotation holder of the camera module shown

[0058] Figure 21 is an exploded perspective view showing another example of a camera module.

[0059] Figure 22 is an exploded perspective view showing the Figure 21 bonding relationship between the housing and the rotation holder of the camera module.

[0060] Figure 23 is an exploded perspective view showing another example of the camera module.

[0061] Figure 24 is an exploded perspective view showing the Figure 23 bonding relationship between the housing and the rotation holder of the camera module.

[0062] Figure 25 is a perspective view showing another example of the portable electronic device.

[0063] Throughout the drawings and the detailed description, like reference numerals represent like elements. The drawings may not be drawn to scale, and for clarity, illustration, and convenience, the relative dimensions, proportions, and depictions of elements in the drawings may be exaggerated. Detailed Description

[0064] The following detailed description is provided to assist the reader in obtaining a comprehensive understanding of the methods, apparatuses, and / or systems described herein. However, various transformations, modifications, and equivalents of the methods, apparatuses, and / or systems described herein will be apparent after understanding the disclosure of the present application. For example, the order of operations described herein is merely exemplary and is not limited to the order set forth herein, but rather, changes that will be apparent after understanding the disclosure of the present application may be made, except for operations that must occur in a specific order. Additionally, descriptions of features known in the art may be omitted for increased clarity and conciseness.

[0065] The features described herein may be implemented in different forms and are not to be construed as limited to the examples described herein. Rather, only the examples described herein are provided to illustrate some of the many possible ways of implementing the methods, apparatuses, and / or systems described herein that will be apparent after understanding the disclosure of the present application.

[0066] Throughout the specification, when an element such as a layer, region, or substrate is described as "on" another element, "connected to" another element, or "bonded to" another element, the element may be directly "on" another element, "connected to" another element, or "bonded to" another element, or there may be one or more other elements therebetween. In contrast, when an element is described as "directly on" another element, "directly connected to" another element, or "directly bonded to" another element, there may be no other elements therebetween.

[0067] Although terms such as "first", "second", and "third" may be used herein to describe various components, elements, regions, layers, or sections, these components, elements, regions, layers, or sections should not be limited by these terms. Rather, these terms are only used to distinguish one component, element, region, layer, or section from another. Thus, the first component, element, region, layer, or section referred to in the examples described herein may also be referred to as the second component, element, region, layer, or section without departing from the teachings of the examples.

[0068] For ease of description, spatial relative terms such as "above", "on top", "below", and "beneath" may be used herein to describe the relationship of one element to another as shown in the figures. Such spatial relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation shown in the figures. For example, if the device in the figures is flipped, an element described as "above" or "on top" of another element will then be "below" or "beneath" the other element. Thus, the term "above" may include both an orientation above and below depending on the spatial orientation of the device. The device may also be positioned in other ways (e.g., rotated 90 degrees or in other orientations) and the spatial relative terms used herein may be interpreted accordingly.

[0069] Figure 1 is a perspective view showing an example of a portable electronic device.

[0070] Referring to Figure 1 , the portable electronic device 1 may be a portable electronic device such as a mobile communication terminal, a smart phone, or a tablet personal computer (PC) in which camera modules 1000, 1001, 1002, 1003, 1004, or 1005 are installed.

[0071] As Figure 1 shown in, the portable electronic device 1 includes a camera module 1000 to capture an image of a subject.

[0072] In the example, the camera modules 1000, 1001, 1002, 1003, 1004, or 1005 include lenses, and the optical axis (Z-axis) of each of the lenses is positioned in a direction perpendicular to the thickness direction (Y-axis direction or the direction from the front surface to the rear surface of the portable electronic device 1 or the direction from the rear surface to the front surface of the portable electronic device 1) of the portable electronic device 1.

[0073] For example, the optical axis (Z-axis) of each of the lenses included in the camera module 1000 may be formed to be along the width direction or the length direction (Z-axis direction or X-axis direction) of the portable electronic device 1.

[0074] Therefore, even when the camera module 1000 has functions such as an autofocus (AF) function, a zoom function, and an optical image stabilization (OIS) function, the thickness of the portable electronic device 1 will not increase. Therefore, the portable electronic device 1 can be miniaturized.

[0075] In this example, the camera module 1000 may have any one or any combination of two or more of the AF function, the zoom function, and the OIS function.

[0076] Since the camera module 1000 including the AF function, the zoom function, and the OIS function requires additional components to implement these functions, the size of this camera module will increase compared to a camera module that does not include these functions.

[0077] When the size of the camera module 1000 increases, it may be difficult to miniaturize the portable electronic device 1 in which the camera module 1000 is installed.

[0078] For example, when the number of stacked lenses in the camera module is increased for the purpose of the zoom function and the stacked lenses are disposed in the camera module in the thickness direction of the portable electronic device 1, the thickness of the portable electronic device may also increase according to the number of stacked lenses. Therefore, when the thickness of the portable electronic device 1 does not increase, the number of stacked lenses is limited by the thickness of the portable electronic device 1, so that the zoom performance may deteriorate.

[0079] In addition, in order to implement the AF function and the OIS function, an actuator that moves the lens group in the optical axis direction or a direction perpendicular to the optical axis needs to be installed. When the optical axis (Z-axis) of the lens group is positioned in the thickness direction of the portable electronic device 1, the actuator that moves the lens group also needs to be installed in the thickness direction of the portable electronic device 1. Therefore, the thickness of the portable electronic device 1 increases.

[0080] However, in the camera module 1000 of this example, the optical axis (Z-axis) of each lens is positioned perpendicular to the thickness direction of the portable electronic device 1. Therefore, even when the camera module 1000 having the AF function, the zoom function, and the OIS function is installed in the portable electronic device 1, the portable electronic device 1 can be miniaturized.

[0081] Figure 2 is a perspective view showing an example of the camera module, Figure 3A and Figure 3B is Figure 2 a cross-sectional view taken along lines IIIA-IIIA' and IIIB-IIIB' in Figure 2 showing the camera module of

[0082] Referring to Figures 2 to 3B, the camera module 1001 includes a reflection module 1100, a lens module 1200, and an image sensor module 1300 disposed in a housing 1010.

[0083] The reflection module 1100 changes the path of light. For example, the reflection module 1100 changes the path of light incident through an opening 1031 of a cover 1030 covering the upper portion of the camera module 1001 (see Figure 3A ), such that the light is directed towards the lens module 1200. To this end, the reflection module 1100 includes a reflection member 1110 that reflects light.

[0084] The reflection module 1100 changes the path of light incident through the opening 1031 such that the light is directed towards the lens module 1200. For example, the reflection module 1100 changes the path of light incident in the thickness direction (Y-axis direction) of the camera module 1001 to be substantially aligned with the optical axis direction (Z-axis direction).

[0085] The lens module 1200 includes lenses, and light having a path changed by the reflection module 1100 passes through the lenses. The image sensor module 1300 includes: an image sensor 1310 that converts light passing through the lenses into an electrical signal; a printed circuit board 1320 on which the image sensor 1310 is mounted; and a filter 1340 that filters light incident on the filter 1340 from the lens module 1200. The filter 1340 may be an infrared cut-off filter.

[0086] In the internal space of the housing 1010, the reflection module 1100 is disposed in front of the lens module 1200, and the image sensor module 1300 is disposed behind the lens module 1200.

[0087] Referring to Figures 2 to 10 , the camera module 1001 includes a reflection module 1100, a lens module 1200, and an image sensor module 1300 disposed in a housing 1010.

[0088] In the housing 1010, the reflection module 1100, the lens module 1200, and the image sensor module 1300 are sequentially disposed from one side of the housing 1010 to the other side of the housing 1010. The housing 1010 has an internal space in which the reflection module 1100, the lens module 1200, and the image sensor module 1300 are disposed. In this example, the printed circuit board 1320 included in the image sensor module 1300 is attached to the outer surface of the housing 1010. In this example, the housing 1010 is a single housing, and both the reflection module 1100 and the lens module 1200 are disposed in the internal space of the housing 1010. However, the housing 1010 is not limited thereto. For example, two separate housings in which the reflection module 1100 and the lens module 1200 are respectively disposed may be connected to each other.

[0089] In addition, the housing 1010 is covered by a cover 1030 such that the internal space of the housing 1010 is not visible.

[0090] The cover 1030 has an opening 1031 through which light enters, and the path of the light incident through the opening 1031 is changed by the reflection module 1100 such that the light is incident on the lens module 1200. In the example shown in the figure, the cover 1030 is a single cover that covers the entire housing 1010. In another example, two separate covers that respectively cover the reflection module 1100 and the lens module 1200 may be provided.

[0091] The reflection module 1100 includes a reflection member 1110 that reflects light. In addition, the light incident on the lens module 1200 passes through the lens and is then converted into an electrical signal by the image sensor 1310.

[0092] The housing 1010 includes a reflection module 1100 and a lens module 1200 disposed in its internal space. Thus, in the internal space of the housing 1010, the space where the reflection module 1100 is disposed and the space where the lens module 1200 is disposed are demarcated from each other by a protruding wall 1007. In addition, the reflection module 1100 is disposed in front of the protruding wall 1007, and the lens module 1200 is disposed behind the protruding wall 1007. The protruding wall 1007 protrudes into the internal space from the opposite side walls of the housing 1010.

[0093] The reflection module 1100 disposed in front of the protruding wall 1007 has the following structure: the rotation holder 1120 is held against and supported by the inner wall surface of the housing 1010 due to the attractive force between a traction yoke 1153 provided on the inner wall surface of the housing 1010 and a traction magnet 1151 provided on the rotation holder 1120. Alternatively, although not shown in the figure, the traction magnet 1151 may be provided on the inner wall surface of the housing 1010, and the traction yoke 1153 may be provided on the rotation holder 1120. However, for ease of explanation, the structure shown in the figure will be described hereinafter.

[0094] In addition, the first support member 1131, the rotating plate 1130, and the second support member 1133 are disposed between the inner wall surface of the housing 1010 and the rotation holding member 1120. Since the first support member 1131 is held in the placement grooves 1132, 1021 and is partially inserted into the placement grooves 1132, 1021 as described below, and the second support member 1133 is held in the placement grooves 1134, 1121 and is partially inserted into the placement grooves 1134, 1121 as described below, when the rotation holding member 1120 and the rotating plate 1130 are inserted into the internal space of the housing 1010, a small space may need to be provided between the rotation holding member 1120 and the protruding wall 1007. After the rotation holding member 1120 is installed in the housing 1010, due to the attraction force between the traction yoke 1153 and the traction magnet 1151, the rotation holding member 1120 is held against the inner wall surface of the housing 1010, the first support member 1131 is held in the placement grooves 1132, 1021, and the second support member 1133 is held in the placement grooves 1134, 1121. Therefore, a small space can be reserved between the rotation holding member 1120 and the protruding wall 1007.

[0095] Therefore, in this example, the housing 1010 includes a stopper 1050 that is assembled to the protruding wall 1007, supports the rotation holding member 1120, and has a hook shape (even without the stopper 1050, the rotation holding member 1120 can be fixed to the housing by the attraction force between the traction magnet 1151 and the traction yoke 1153). In this example, the stopper 1050 has a hook shape and supports the rotation holding member 1120 in a state where its hook portion is hooked to the protruding wall 1007. When the reflection module 1100 is not driven, the stopper 1050 serves as a bracket for supporting the rotation holding member 1120. When the reflection module 1100 is driven, the stopper 1050 additionally serves as a stopper 1050 that restricts the movement of the rotation holding member 1120. The stoppers 1050 are respectively disposed on the protruding walls 1007 protruding from the opposite side walls of the housing. A space is provided between the stopper 1050 and the rotation holding member 1120 to allow the rotation holding member 1120 to rotate smoothly. Optionally, the stopper 1050 can be formed of an elastic material to allow the rotation holding member 1120 to move smoothly in a state where the rotation holding member 1120 is supported by the stopper 1050.

[0096] In addition, the housing 1010 includes a first driving unit 1140 and a second driving unit 1240, and the first driving unit 1140 and the second driving unit 1240 are configured to drive the reflection module 1100 and the lens module 1200, respectively. The first driving unit 1140 includes coils 1141b, 1143b, and 1145b for driving the reflection module 1100, and the second driving unit 1240 includes coils 1241b and 1243b for driving the lens module 1200. In addition, since the coils 1141b, 1143b, 1145b, 1241b, and 1243b are disposed in the housing 1010 in a state where they are mounted on the main board 1070, the housing 1010 is provided with through holes 1015, 1016, 1017, 1018, and 1019 such that the coils 1141b, 1143b, 1145b, 1241b, and 1243b are exposed to the internal space of the housing 1010.

[0097] In the example shown in the figure, the main board 1070 on which the coils 1141b, 1143b, 1145b, 1241b, and 1243b are mounted is a single board. In this case, a set of terminals can be provided, whereby the connection of an external power supply and signals can be facilitated. However, the main board 1070 is not limited thereto, but the main board 1070 can also be configured as two boards by separating the board on which the coils 1141b, 1143b, and 1145b of the reflection module 1100 are mounted from the board on which the coils 1241b and 1243b of the lens module 1200 are mounted.

[0098] The reflection module 1100 changes the path of light incident on the reflection module 1100 through the opening 1031. When capturing a still image or a moving image, due to the user's hand shake or other movements, the still image may be blurred or the moving image may jitter. In this case, the reflection module 1100 corrects the user's hand shake or other movements by moving the rotation holder 1120 on which the reflection member 1110 is mounted to perform the OIS function. For example, when jitter occurs during the capture of a still image or a moving image due to the user's hand shake or other movements, a relative displacement corresponding to the jitter can be provided to the rotation holder 1120 to compensate for the jitter.

[0099] In this example, since the OIS function is achieved by the movement of the rotation holder 1120 which has a relatively light weight because it does not include a lens or other components, the power consumption for the OIS function can be significantly reduced.

[0100] That is, in this example, in order to achieve the OIS function, the path of light is changed by the movement of the rotation holder 1120 on which the reflection member 1110 is provided, so that the light for which the OIS is performed is incident on the lens module 1200 without moving the lens holder including the lens or the image sensor.

[0101] The reflection module 1100 includes a rotary holder 1120 disposed in and supported by a housing 1010, a reflection member 1110 mounted on the rotary holder 1120, and a first driving unit 1140 that moves the rotary holder 1120.

[0102] The reflection member 1110 changes the path of light. For example, the reflection member 1110 can be a mirror or a prism that reflects light (for ease of explanation, the case where the reflection member 1110 is a prism is shown in the figure associated with Figures 2 to 10 the camera module 1001).

[0103] The reflection member 1110 is fixed to the rotary holder 1120. The rotary holder 1120 has a mounting surface 1123 on which the reflection member 1110 is mounted.

[0104] The mounting surface 1123 of the rotary holder 1120 is an inclined surface such that the path of light is changed. In one example, the mounting surface 1123 is an inclined surface that is inclined 30° to 60° with respect to the optical axis (Z-axis) of each lens in the lens. Additionally, the inclined surface of the rotary holder 1120 points to an opening 1031 through which light incident on the cover 1030 passes.

[0105] The rotary holder 1120 on which the reflection member 1110 is mounted is movably mounted in the internal space of the housing 1010. For example, the rotary holder 1120 is mounted in the housing 1010 so as to be rotatable about a first axis (X-axis) and a second axis (Y-axis). In this example, the first axis (X-axis) and the second axis (Y-axis) are axes that are perpendicular to the optical axis (Z-axis) and perpendicular to each other.

[0106] The rotary holder 1120 is supported in the housing 1010 by first support members 1131 arranged along the first axis (X-axis) and second support members 1133 arranged along the second axis (Y-axis) such that the rotary holder 1120 can rotate smoothly about the first axis (X-axis) and the second axis (Y-axis). In the figure, two first support members 1131 arranged along the first axis (X-axis) and two second support members 1133 arranged along the second axis (Y-axis) are shown by way of example. Additionally, the rotary holder 1120 rotates about the first axis (X-axis) and the second axis (Y-axis) by the first driving unit 1140 described below.

[0107] In this example, with respect to the following Figures 13 to 24Unlike the other examples described above, since the first support members 1131 arranged along the first axis (X-axis) and the second support members 1133 arranged along the second axis (Y-axis) are provided, the two first support members 1131 arranged along the first axis (X-axis) can be set to a cylindrical shape extending in the first axis direction (X-axis direction), and the two second support members 1133 arranged along the second axis (Y-axis) can be set to a cylindrical shape extending in the second axis direction (Y-axis direction). In this case, the placement grooves 1132, 1134, 1021, and 1121 can be set to a semi-cylindrical shape corresponding to the shapes of the first support members and the second support members (see Figure 6B ). At the same time, in Figure 6B , the case where two first support members 1131 and two second support members 1133 are provided is shown, but one or two or more first support members 1131 and second support members 1133 extending in the first axis direction (X-axis direction) or in the second axis direction (Y-axis direction) can also be provided.

[0108] In Figures 2 to 10 , in the example shown, the first support member 1131 and the second support member 1133 are respectively provided on the front surface and the rear surface of the rotating plate 1130. In another example, the first support member 1131 and the second support member 1133 are respectively provided on the rear surface and the front surface of the rotating plate 1130. That is, the first support member 1131 can be arranged along the second axis (Y-axis), and the second support member 1133 can be arranged along the first axis (X-axis). However, for the convenience of explanation, the structure shown in the figure will be described below. The rotating plate 1130 is provided between the rotating holder 1120 and the inner surface of the housing 1010. In addition, through the attractive force between the traction magnet 1151 or the traction yoke provided on the rotating holder 1120 and the traction yoke 1153 or the traction magnet provided on the housing 1010, the rotating holder 1120 is supported by the housing 1010 through the rotating plate 1130, the first support member 1131, and the second support member 1133.

[0109] The placement grooves 1132 and 1134 into which the first support member 1131 and the second support member 1133 are respectively inserted are respectively provided on the front surface and the rear surface of the rotating plate 1130, and include the first placement groove 1132 into which a part of the first support member 1131 is inserted and the second placement groove 1134 into which a part of the second support member 1133 is inserted.

[0110] In addition, the housing 1010 is provided with a third placement groove 1021 into which a part of the first support member 1131 is inserted, and the rotating holder 1120 is provided with a fourth placement groove 1121 into which a part of the second support member 1133 is inserted.

[0111] The above-described first placement groove 1132, second placement groove 1134, third placement groove 1021, and fourth placement groove 1121 can be provided in a groove shape of a hemisphere or a polygon (a prism or a pyramid), so that the first support member 1131 and the second support member 1133 can be easily rotated (the depths of the placement grooves 1132, 1134, 1021, and 1121 can be less than their radii to enable the first support member 1131 and the second support member 1133 to be easily rotated). The first support member 1131 and the second support member 1133 are not completely disposed inside the placement groove, but are partially exposed to enable the rotating plate 1130 and the rotation holding member 1120 to be easily rotated. In addition, the positions and numbers of the first placement groove 1132 and the third placement groove 1021 correspond to the positions and numbers of the first support members 1131 arranged along the first axis (X-axis), and the positions and numbers of the second placement groove 1134 and the fourth placement groove 1121 correspond to the positions and numbers of the second support members 1133 arranged along the second axis (Y-axis).

[0112] The first support member 1131 serves as a support member while rolling in the first placement groove 1132 and the third placement groove 1021, and the second support member 1133 serves as a support member while rolling in the second placement groove 1134 and the fourth placement groove 1121.

[0113] In another example, the first support member 1131 and the second support member 1133 have such a structure that the first support member 1131 and the second support member 1133 are fixedly provided in at least one of the housing 1010, the rotating plate 1130, and the rotation holding member 1120. For example, the first support member 1131 is fixedly provided in the housing 1010 or the rotating plate 1130, and the second support member 1133 is fixedly provided in the rotating plate 1130 or the rotation holding member 1120. In this case, only the member facing the member in which the first support member 1131 or the second support member 1133 is fixedly provided is provided with a placement groove. In this case, the support member serves as a friction support member by sliding in the placement groove rather than by rotating in the placement groove.

[0114] When the first support member 1131 and the second support member 1133 are fixedly provided in any one of the housing 1010, the rotating plate 1130, and the rotation holding member 1120, the first support member 1131 and the second support member 1133 can be provided in a spherical shape or a hemispherical shape. However, the case where the first support member 1131 and the second support member 1133 are provided in a hemispherical shape is only an example, and the first support member 1131 and the second support member 1133 can also be provided with a protruding length greater than or less than the length of the hemisphere. As described above, the case where the first support member 1131 and the second support member 1133 are provided in a cylindrical shape extending along the first axis (X-axis) and the second axis (Y-axis) respectively can be similarly applied.

[0115] In addition, the first support member 1131 and the second support member 1133 can be separately manufactured and then attached to any one of the housing 1010, the rotary plate 1130, and the rotary holder 1120. Alternatively, the first support member 1131 and the second support member 1133 can be integrally provided with the housing 1010, the rotary plate 1130, or the rotary holder 1120 when manufacturing the housing 1010, the rotary plate 1130, or the rotary holder 1120.

[0116] The first driving unit 1140 generates a driving force that enables the rotary holder 1120 to be rotatable about two axes.

[0117] As an example, the first driving unit 1140 includes magnets 1141a, 1143a, and 1145a and coils 1141b, 1143b, and 1145b that are arranged to face the magnets 1141a, 1143a, and 1145a respectively.

[0118] When power is applied to the coils 1141b, 1143b, and 1145b, the rotary holder 1120 on which the magnets 1141a, 1143a, and 1145a are mounted rotates about the first axis (X-axis) and the second axis (Y-axis) through the electromagnetic interaction between the magnets 1141a, 1143a, and 1145a and the coils 1141b, 1143b, and 1145b.

[0119] The magnets 1141a, 1143a, and 1145a are mounted on the rotary holder 1120. Figures 2 to 10 In the example shown, among the magnets 1141a, 1143a, and 1145a, the magnet 1141a is mounted on the lower surface of the rotary holder 1120, and the magnets 1143a and 1145a among the magnets 1141a, 1143a, and 1145a are mounted on the side surfaces of the rotary holder 1120.

[0120] The coils 1141b, 1143b, and 1145b are mounted on the housing 1010. Figures 2 to 10 In the example shown, the coils 1141b, 1143b, and 1145b are mounted on the housing 1010 through the main board 1070. That is, the coils 1141b, 1143b, and 1145b are mounted on the main board 1070, and the main board 1070 is mounted on the housing 1010. The figure shows an example in which the main board 1070 is integrally provided as a whole so that both the coils for the reflection module 1100 and the coils for the lens module 1200 are mounted on the main board 1070, but the main board 1070 can be provided as two or more separate boards on which the coils for the reflection module 1100 and the coils for the lens module 1200 are respectively mounted.

[0121] A reinforcing plate (not shown) may be installed under the main board 1070 to reinforce the main board.

[0122] In this example, when the rotation holder 1120 rotates, a closed-loop control method that senses and feeds back the position of the rotation holder 1120 is used.

[0123] Accordingly, position sensors 1141c and 1143c are provided to enable closed-loop control. The position sensors 1141c and 1143c may be Hall sensors.

[0124] In Figures 2 to 10 the example shown, the position sensors 1141c and 1143c are respectively disposed inside the coils 1141b and 1143b, and are mounted on the main board 1070 on which the coils 1141b and 1143b are mounted. In another example, the position sensors 1141c and 1143c are respectively disposed outside the coils 1141b and 1143b.

[0125] The main board 1070 is provided with a gyro sensor (not shown) that senses the shake of the camera module 1001 caused by the user's hand shake or other movements, and is provided with a driver integrated circuit (IC) (not shown) that provides drive signals to the coils 1141b, 1143b, and 1145b based on signals from the gyro sensor.

[0126] Figures 11A to 11C is a cross-sectional view taken along the lines XIA-XIA' to XIC-XIC' in Figure 10 showing how the rotation holder of the camera module in Figure 2 rotates about the first axis, and Figures 12A to 12C is a cross-sectional view taken along the lines XIIA-XIIA' to XIIC-XIIC' in Figure 10 showing how the rotation holder of the camera module in Figure 2 rotates about the second axis.

[0127] Referring to Figures 11A to 11C , when the rotation holder 1120 rotates about the first axis (X-axis), the rotation holder 1120 rotates by the rotation of the rotation plate 1130 about the first support member 1131 disposed along the first axis (X-axis). In this case, the rotation holder 1120 does not move relative to the rotation plate 1130. Additionally, referring to Figures 12A to 12C , when the rotation holder 1120 rotates about the second axis (Y-axis), the rotation holder 1120 rotates about the second support member 1133 disposed along the second axis (Y-axis). In this case, the rotation plate 1130 does not rotate, and thus the rotation holder 1120 moves relative to the rotation plate 1130.

[0128] That is to say, when the rotation holder 1120 rotates about the first axis (X-axis), the first support member 1131 operates, and when the rotation holder 1120 rotates about the second axis (Y-axis), the second support member 1133 operates. The reason for this is that, as shown in the figure, when the rotation holder 1120 rotates about the first axis (X-axis), the second support members 1133 arranged along the second axis (Y-axis) do not move in their state of being assembled into the placement groove, and when the rotation holder 1120 rotates about the second axis (Y-axis), the first support members 1131 arranged along the first axis (X-axis) do not move in their state of being assembled into the placement groove.

[0129] The light whose path is changed by the reflection module 1100 is incident on the lens module 1200. Therefore, the optical axes of the stacked lenses provided in the lens module 1200 are arranged in the Z-axis direction (the direction in which light is emitted from the reflection module 1100). In addition, the lens module 1200 includes a second driving unit 1240 to implement the AF function and the zoom function. Since the lens module 1200 does not include components for the OIS function, the lens module 1200 has a relatively low weight, and the lens module 1200 moves in the optical axis direction to implement the AF function and the zoom function. Therefore, the power consumption is significantly reduced.

[0130] The lens module 1200 includes a lens holder 1220, which is arranged in the internal space of the housing 1010 and has lenses stacked therein and magnets 1241a and 1243a of the second driving unit 1240 provided thereon, and the magnets 1241a and 1243a move the lens holder 1220.

[0131] The lenses for capturing an image of the subject are stacked in the lens holder 1220 and are mounted along the optical axis in the lens holder 1220.

[0132] The light whose path is changed by the reflection module 1100 is refracted while passing through the lens. The optical axis (Z-axis) of each lens in the lens is perpendicular to the thickness direction (Y-axis direction) of the lens module 1200.

[0133] The lens holder 1220 is movable in the optical axis direction (Z-axis direction) for the purpose of AF. In the example shown in the figure, the lens holder 1220 is configured to be movable in the direction in which the light whose path is changed by the reflection module 1100 passes through the lens (including the direction opposite to the said direction).

[0134] The second driving unit 1240 generates a driving force that moves the lens holder 1220 in the optical axis direction (Z-axis direction). That is to say, the second driving unit 1240 moves the lens holder 1220 to change the distance between the lens holder 1220 and the reflection module 1100.

[0135] In Figures 2 to 10 In the example shown, the second driving unit 1240 includes magnets 1241a and 1243a and coils 1241b and 1243b that are arranged to face the magnets 1241a and 1243a, respectively.

[0136] When power is applied to the coils 1241b and 1243b, the lens holder 1220 on which the magnets 1241a and 1243a are mounted moves in the optical axis direction (Z-axis direction) by the electromagnetic interaction between the magnets 1241a and 1243a and the coils 1241b and 1243b.

[0137] The magnets 1241a and 1243a are mounted on the lens holder 1220. In Figures 2 to 10 In the example shown, the magnets 1241a and 1243a are mounted on the side surfaces of the lens holder 1220.

[0138] The coils 1241b and 1243b are mounted on the housing 1010. In Figures 2 to 10 In the example shown, the main board 1070 is mounted on the housing 1010 with the coils 1241b and 1243b mounted on the main board 1070. For ease of illustration, the coils for the reflection module 1100 and the coils for the lens module 1200 are shown mounted on the main board 1070 in the figure, but the main board 1070 is not limited thereto, and a separate board on which the coils for the reflection module 1100 and the coils for the lens module 1200 are respectively mounted may also be provided.

[0139] In this example, when the lens holder 1220 moves, a closed-loop control method for sensing and feeding back the position of the lens holder 1220 is used. Therefore, the position sensor 1243c is arranged to be able to perform closed-loop control. The position sensor 1243c may be a Hall sensor.

[0140] In Figures 2 to 10 In the example shown, the position sensor 1243c is arranged inside the coil 1243b and is mounted on the main board 1070 on which the coil 1243b is mounted. In another example, the position sensor 1243c is arranged outside the coil 1243b.

[0141] The lens holder 1220 is mounted in the housing 1010 so as to be movable in the optical axis direction (Z-axis direction). In the example shown in the figure, a ball member 1250 is provided between the lens holder 1220 and the housing 1010.

[0142] The ball member 1250 serves as a support member that guides the movement of the lens holder 1220 during the AF process. In addition, the ball member 1250 is also used to maintain the spacing between the lens holder 1220 and the housing 1010.

[0143] When a driving force in the optical axis direction (Z-axis direction) is generated, the ball member 1250 rolls in the optical axis direction (Z-axis direction). Therefore, the ball member 1250 guides the movement of the lens holder 1220 in the optical axis direction (Z-axis direction).

[0144] The guide grooves 1221 and 1231 for accommodating the ball member 1250 are formed in at least one of the surfaces of the lens holder 1220 and the housing 1010 that face each other.

[0145] The ball member 1250 is accommodated in the guide grooves 1221 and 1231 and is assembled between the lens holder 1220 and the housing 1010.

[0146] The guide grooves 1221 and 1231 may have a length in the optical axis direction (Z-axis direction).

[0147] In a state where the ball member 1250 is accommodated in the guide grooves 1221 and 1231, the ball member 1250 is prevented from moving in the first axis direction (X-axis direction) and the second axis direction (Y-axis direction), and the ball member 1250 can only move in the optical axis direction (Z-axis direction). In Figures 2 to 10 the example shown, the ball member 1250 can only roll in the optical axis direction (Z-axis direction).

[0148] For this purpose, each of the guide grooves 1221 and 1231 extends in the optical axis direction (Z-axis direction). In addition, the cross-sections of the guide grooves 1221 and 1231 may have various shapes such as a circular shape or a polygonal shape.

[0149] The lens holder 1220 is pressed against the housing 1010 so that the ball member 1250 is maintained in a state of being in contact with the lens holder 1220 and the housing 1010.

[0150] For this purpose, the housing 1010 is provided with a yoke 1260 that faces the magnets 1241a and 1243a mounted on the lens holder 1220. The yoke 1260 is formed of a magnetic material.

[0151] An attractive force is generated between the yoke 1260 and the magnets 1241a and 1243a. Therefore, the lens holder 1220 can move in the optical axis direction (Z-axis direction) by the driving force of the second driving unit 1240 in a state where the lens holder 1220 is in contact with the ball member 1250.

[0152] Figure 13is an exploded perspective view showing another example of a camera module, and Figure 14 is showing Figure 13 an exploded perspective view of the coupling relationship between the housing and the rotation holder of the camera module of.

[0153] Referring to Figure 13 and Figure 14 , all components of the camera module 1002 except for the reflection module are the same as all components of the Figures 2 to 10 camera module 1001 except for the reflection module. Hereinafter, the structure of the reflection module will be described in detail below, and the same components will be denoted by the same reference numerals, and the detailed description thereof will be omitted.

[0154] The camera module 1002 includes a reflection module 1100-2, a lens module 1200, and an image sensor module 1300 disposed in the housing 1010-2.

[0155] In the reflection module 1100-2, different from the Figures 2 to 10 camera module 1001, the rotation holder 1120-2 is supported by the inner surface of the housing 1010-2 through a third support member 1142 without using a separate additional component. That is, the reflection module 1100-2 does not have a component corresponding to the rotation plate 1130 of the Figures 2 to 10 camera module 1001.

[0156] For this purpose, the housing 1010-2 has a rotation recess 1041 formed in a portion of the housing 1010-2 facing the rotation holder 1120-2, and the rotation holder 1120-2 has a rotation protrusion 1025 inserted into the rotation recess 1041. The rotation recess 1041 and the rotation protrusion 1025 have a polygonal shape such as a triangular shape or a rectangular shape when viewed in the Z-axis direction, so that the rotation holder 1120-2 can perform rotation with only two degrees of freedom about a predetermined axis (for example, the X-axis and the Y-axis). When the rotation recess 1041 and the rotation protrusion 1025 have a polygonal shape, after the rotation protrusion 1025 is inserted into the rotation recess 1041, since the corners of the rotation protrusion 1025 and the corners of the rotation recess 1041 are engaged with each other, the rotation holder 1120-2 cannot rotate about the Z-axis. The rotation recess 1041 and the rotation protrusion 1025 should not have a circular shape when viewed in the Z-axis direction, because the circular shape will enable the rotation holder to rotate about the Z-axis.

[0157] In addition, the edges of the rotation recess 1041 and the edges of the rotation protrusion 1025 are provided as inclined surfaces or circular surfaces so that the rotation holder 1120-2 can easily rotate about a predetermined axis (for example, the X-axis and the Y-axis).

[0158] In addition, third support members 1142 are provided at opposite edges of the rotation protrusion 1025 and are arranged along the first axis (X-axis). In addition, a placement groove 1042 for inserting the third support members 1142 is provided at opposite edges of the rotation recess 1041. The placement groove 1042 is provided in a linear or curved shape that extends along the edge of the rotation recess 1041 in the optical axis direction (Z-axis direction) (for example, the placement groove 1042 is provided in a linear or curved shape that extends along the edge of the rotation recess 1041 in a direction inclined from the optical axis direction (Z-axis direction) toward the first axis direction (X-axis direction)). In addition, the cross section of the placement groove 1042 may have various shapes such as a circular shape or a polygonal shape.

[0159] In addition, the third support members 1142 are provided in a state where they can move freely or be fixed to the housing 1010-2 or the rotation holder 1120-2 with respect to the housing 1010-2 or the rotation holder 1120-2. When the third support members 1142 are provided in a state where they are fixed to the housing 1010-2 or the rotation holder 1120-2, the third support members 1142 may have a spherical shape, a hemispherical shape, or a spherical cap shape (a shape obtained by cutting a sphere with a plane to obtain a shape smaller than or larger than a hemisphere). In addition, when the third support members 1142 are provided in a state where they are fixed to the housing 1010-2 or the rotation holder 1120-2, the third support members 1142 may be integrally manufactured with the housing 1010-2 or the rotation holder 1120-2, or may be manufactured separately from the housing 1010-2 or the rotation holder 1120-2 and then attached to the housing 1010-2 or the rotation holder 1120-2.

[0160] Since the reflection module 1100-2 in this example includes the third support members 1142 arranged along the first axis (X-axis), the rotation holder 1120-2 can rotate about the first axis (X-axis) or the second axis (Y-axis) perpendicular to the first axis (X-axis) in a state where the rotation holder 1120-2 is supported by the housing 1010-2 through the third support members 1142 by the attractive force between the traction magnet 1151 and the traction yoke 1153.

[0161] In this case, since the reflection module 1100-2 only includes the third support member 1142 arranged along the first axis (X-axis), when the rotation holder 1120-2 rotates around the first axis (X-axis), the rotation axis of the rotation holder 1120-2 substantially corresponds to the first axis (X-axis) connecting the third support members 1142 to each other. However, when the rotation holder 1120-2 rotates around the second axis (Y-axis), the rotation axis of the rotation holder 1120-2 that is substantially parallel to the second axis (Y-axis) is formed at a virtual point that is separated from the third support member 1142 by a predetermined distance toward the rotation holder 1120-2. However, the position of the rotation axis may vary differently according to the design shape, which will be described in more detail with reference to Figures 15A to 16C be described in more detail.

[0162] The reflection module 1100-2 includes a reflection member 1110-2, a rotation holder 1120-2 on which the reflection member 1110-2 is mounted, and a first driving unit 1140 that generates a driving force to move the rotation holder 1120-2.

[0163] The reflection member 1110-2 changes the path of light. For example, the reflection member 1110-2 may be a mirror or a prism that reflects light. The reflection member 1110-2 is fixed to the rotation holder 1120-2.

[0164] The first driving unit 1140 generates a driving force such that the rotation holder 1120-2 is rotatable in two directions. For example, the first driving unit 1140 includes magnets 1141a, 1143a, and 1145a and coils 1141b, 1143b, and 1145b that are arranged to face the magnets 1141a, 1143a, and 1145a, and includes position sensors 1141c and 1143c that sense the position of the rotation holder 1120-2. The driving and positions of the magnets 1141a, 1143a, and 1145a, the driving and positions of the coils 1141b, 1143b, and 1145b, and the driving and positions of the position sensors 1141c and 1143c are the same as those described above in the Figures 2 to 10 camera module, and thus a detailed description thereof will be omitted.

[0165] Figures 15A to 15C is a cross-sectional view showing how the rotation holder of the Figure 13 camera module rotates around the first axis, and Figures 16A to 16C is a cross-sectional view showing how the rotation holder of the Figure 13 camera module rotates around the second axis.

[0166] Refer to Figures 15A to 15C, when the rotation holder 1120-2 rotates about the first axis (X-axis), the rotation holder 1120-2 rotates about the first axis (X-axis) along which the third support member 1142 is arranged. In this case, since the reflection module 1100-2 only includes the third support member 1142 arranged along the first axis (X-axis), when the rotation holder 1120-2 rotates about the first axis (X-axis), the rotation axis of the rotation holder 1120-2 is substantially the extension line connecting the third support members 1142 to each other and is substantially parallel to the first axis (X-axis).

[0167] Refer to Figures 16A to 16C , when the rotation holder 1120-2 rotates about the second axis (Y-axis), a rotation axis of the rotation holder 1120-2 that is substantially parallel to the second axis (Y-axis) is formed at a virtual point that is separated from the third support member 1142 by a predetermined distance toward the rotation holder 1120-2. In this case, the rotation axis is located in a portion that is separated from the contact portion between the third support member 1142 and the rotation holder 1120-2, and the sliding movement amount of the rotation holder 1120-2 is larger than the case where the rotation holder 1120-2 moves relative to the first axis (X-axis).

[0168] Figure 17 is an exploded perspective view showing another example of the camera module, and Figure 18 is showing Figure 17 an exploded perspective view of the bonding relationship between the housing of the camera module and the rotation holder.

[0169] Refer to Figure 17 and Figure 18 , all components of the camera module 1003 except for the reflection module are the same as all components of the Figures 2 to 10 camera module 1001 except for the reflection module. Hereinafter, the structure of the reflection module will be described in detail below. The same components will be denoted by the same reference numerals, and the detailed description thereof will be omitted.

[0170] The camera module 1003 includes a reflection module 1100-3, a lens module 1200, and an image sensor module 1300 provided in a housing 1010-3.

[0171] In the reflection module 1100-3, different from the Figures 2 to 10 camera module 1001, the rotation holder 1120-3 is supported by the inner surface of the housing 1010-3 through a fourth support member 1143 without using a separate additional component. That is, the reflection module 1100-3 does not have a component corresponding to the rotation plate 1130 of the Figures 2 to 10 camera module 1001.

[0172] To this end, the housing 1010-3 has a rotation recess 1043 formed in a portion of the housing 1010-3 facing the rotation holder 1120-3, and the rotation holder 1120-3 is provided with a rotation protrusion 1026 inserted into the rotation recess 1043. The rotation recess 1043 and the rotation protrusion 1026 have a polygonal shape such as a triangular shape or a rectangular shape when viewed in the Z-axis direction, so that the rotation holder 1120-3 can perform rotation with only two degrees of freedom about a predetermined axis (e.g., the X-axis and the Y-axis). The reason is that when the rotation recess 1043 and the rotation protrusion 1026 have a polygonal shape, after the rotation protrusion 1026 is inserted into the rotation recess 1043, the rotation holder 1120-3 cannot rotate about the Z-axis because the corners of the rotation protrusion 1026 and the corners of the rotation recess 1043 are stuck to each other.

[0173] In addition, the edges of the rotation recess 1043 and the rotation protrusion 1026 may be provided as inclined surfaces or circular surfaces so that the rotation holder 1120-3 can easily rotate about a predetermined axis (e.g., the X-axis and the Y-axis).

[0174] In addition, the edge of the rotation protrusion 1026 may be provided with fourth support members 1143 arranged along the second axis (Y-axis) (two fourth support members arranged along the Y-axis direction may be provided on the opposite edges of the rotation protrusion 1026). In addition, the edge of the rotation recess 1043 may be provided with a seating groove 1044 for inserting the fourth support members 1143. The seating groove 1044 may be provided in a linear or curved shape extending in the optical axis direction (Z-axis direction) along the edge of the rotation recess 1043 (e.g., the seating groove 1044 is provided in a linear or curved shape extending in a direction inclined from the optical axis direction (Z-axis direction) toward the second axis direction (Y-axis direction) along the edge of the rotation recess 1043). In addition, the cross section of the seating groove 1044 may have various shapes such as a circular shape or a polygonal shape.

[0175] In addition, the fourth support members 1143 may be provided in a state where they are freely movable or fixed to the housing 1010-3 or the rotation holder 1120-3 with respect to the housing 1010-3 or the rotation holder 1120-3. When the fourth support members 1143 are provided in a state where they are fixed to the housing 1010-3 or the rotation holder 1120-3, the fourth support members 1143 may be provided in a spherical shape or a hemispherical shape (smaller or larger than a hemisphere). In addition, when the fourth support members 1143 are provided in a state where they are fixed to the housing 1010-3 or the rotation holder 1120-3, the fourth support members 1143 may be integrally manufactured with the housing 1010-3 or the rotation holder 1120-3 as a whole, or may be manufactured separately from the housing 1010-3 or the rotation holder 1120-3 and then attached to the housing 1010-3 or the rotation holder 1120-3.

[0176] Since the reflection module 1100-3 of this example includes the fourth support member 1143 arranged along the second axis (Y-axis), the rotation holding member 1120-3 can rotate about the second axis (Y-axis) or about the first axis (X-axis) perpendicular to the second axis (Y-axis) in a state where the rotation holding member 1120-3 is supported by the housing 1010-3 through the fourth support member 1143 by the attractive force between the traction magnet 1151 and the traction yoke 1153.

[0177] In this case, since the reflection module 1100-3 only includes the fourth support member 1143 arranged along the second axis (Y-axis), when the rotation holding member 1120-3 rotates about the second axis (Y-axis), the rotation axis of the rotation holding member 1120-3 substantially corresponds to the second axis (Y-axis) connecting the fourth support members 1143 to each other. However, when the rotation holding member 1120-3 rotates about the first axis (X-axis), the rotation axis of the rotation holding member 1120-3 substantially parallel to the first axis (X-axis) is formed at a virtual point separated from the fourth support member 1143 by a predetermined distance toward the rotation holding member 1120-3. This will be described in more detail with reference to Figures 19A to 20C be described in more detail.

[0178] The reflection module 1100-3 includes a reflection member 1110-3, a rotation holding member 1120-3 on which the reflection member 1110-3 is mounted, and a first driving unit 1140 that generates a driving force to move the rotation holding member 1120-3.

[0179] The reflection member 1110-3 can change the path of light. As an example, the reflection member 1110-3 can be a mirror or a prism that reflects light. The reflection member 1110-3 can be fixed to the rotation holding member 1120-3.

[0180] The first driving unit 1140 can generate a driving force such that the rotation holding member 1120-3 can rotate in two directions. For example, the first driving unit 1140 can include magnets 1141a, 1143a, and 1145a and coils 1141b, 1143b, and 1145b that are arranged to face the magnets 1141a, 1143a, and 1145a, and can include position sensors 1141c and 1143c that sense the position of the rotation holding member 1120-3. The driving and positions of the magnets 1141a, 1143a, and 1145a, the driving and positions of the coils 1141b, 1143b, and 1145b, and the driving and positions of the position sensors 1141c and 1143c are the same as those described in the camera module above in Figures 2 to 10 and thus a detailed description thereof will be omitted.

[0181] Figures 19A to 19C shows Figure 17Cross-sectional view of how the rotation retainer of the camera module rotates about the first axis, and Figures 20A to 20C shows Figure 17 Cross-sectional view of how the rotation retainer of the camera module rotates about the second axis.

[0182] Referring to Figures 19A to 19C , when the rotation retainer 1120-3 rotates about the first axis (X-axis), a rotation axis of the rotation retainer 1120-3 that is substantially parallel to the first axis (X-axis) is formed at a virtual point that is separated from the fourth support member 1143 by a predetermined distance toward the rotation retainer 1120-3. In this case, the rotation axis is located in a portion that is separated from the contact portion between the fourth support member 1143 and the rotation retainer 1120-3, and the sliding movement amount of the rotation retainer 1120-3 is larger than the case where the rotation retainer 1120-3 moves relative to the second axis (Y-axis).

[0183] Referring to Figures 20A to 20C , when the rotation retainer 1120-3 rotates about the second axis (Y-axis), the rotation retainer 1120-3 rotates about the second axis (Y-axis) along which the fourth support member 1143 is arranged. In this case, since the reflection module 1100-3 only includes the fourth support member 1143 arranged along the second axis (Y-axis), when the rotation retainer 1120-3 rotates about the second axis (Y-axis), the rotation axis of the rotation retainer 1120-3 is substantially the extension line connecting the fourth support members 1143 to each other, and the rotation axis of the rotation retainer 1120-3 is substantially parallel to the second axis (Y-axis).

[0184] Figure 21 Exploded perspective view showing another example of the camera module, and Figure 22 shows Figure 21 Exploded perspective view of the bonding relationship between the housing and the rotation retainer of the camera module.

[0185] Referring to Figure 21 and Figure 22 , all components of the camera module 1004 are the same as those of the camera module 1002 of Figure 13 and Figure 14 , except that a placement groove 1027 in which the third support member 1142 is placed is provided in the rotation retainer 1120-2. Hereinafter, only the structure of the placement groove 1027 will be briefly described below, and the same components will be denoted by the same reference numerals, and the detailed description thereof will be omitted.

[0186] The camera module 1004 includes a reflection module 1100-2, a lens module 1200, and an image sensor module 1300 provided in the housing 1010-2.

[0187] In the reflection module 1100-2 of this example, compared withFigure 13 and Figure 14 in the reflection module 1100-2 of the camera module 1002 (where the placement groove 1042 for the third support member 1142 is provided at the edge of the rotation recess 1041), the placement groove 1027 for the third support member 1142 is provided in the rotation holding member 1120-2. The placement groove 1027 is provided in a linear or curved shape that extends in the optical axis direction (Z-axis direction) at the edge of the rotation protrusion 1025 (for example, the placement groove 1027 is provided in a linear or curved shape that extends in a direction inclined with respect to the optical axis direction (Z-axis direction) toward the first axis direction (X-axis direction) at the edge of the rotation protrusion 1025). In addition, the cross section of the placement groove 1027 may have various shapes such as a circular shape, a polygonal shape, etc. All components other than the placement groove 1027 are the same as those of the camera module 1002 of Figure 13 and Figure 14 and thus a detailed description thereof will be omitted.

[0188] In addition, due to the structure in which the placement groove 1027 is provided in the rotation holding member 1120-2, only the position where the third support member 1142 is provided is slightly different from that of the third support member 1142 in the camera module 1002 of Figure 13 and Figure 14 and the mechanism through which the rotation holding member 1120-2 rotates around the first axis (X-axis) or the second axis (Y-axis) is the same as that of the rotation holding member 1120-2 of the camera module 1002 of Figure 13 and Figure 14 Therefore, in the camera module 1002 of Figure 13 and Figure 14 this mechanism is shown in Figures 15A to 15C and Figures 16A to 16C .

[0189] Figure 23 is an exploded perspective view showing another example of the camera module, and Figure 24 is an exploded perspective view showing the bonding relationship between the housing and the rotation holding member of the camera module of Figure 23 .

[0190] Referring to Figure 23 and Figure 24 , all components of the camera module 1005 are the same as those of the camera module 1002 of Figure 17 and Figure 18All components of the camera module 1003 are the same. Hereinafter, only the structure of the placement groove 1028 will be briefly described below. The same components will be denoted by the same reference numerals, and detailed descriptions thereof will be omitted.

[0191] The camera module 1005 includes a reflection module 1100-3, a lens module 1200, and an image sensor module 1300 disposed in a housing 1010-3.

[0192] In the reflection module 1100-3 of this example, different from Figure 17 and Figure 18 the reflection module 1100-3 of the camera module 1003 (wherein a placement groove 1044 for placing a fourth support member 1143 is provided at the edge of a rotation recess 1043), a placement groove 1028 for placing the fourth support member 1143 is provided in a rotation holder 1120-3. In this example, the placement groove 1028 is provided in a linear or curved shape extending in the optical axis direction (Z-axis direction) at the edge of a rotation protrusion 1026 (for example, the placement groove 1028 is provided in a linear or curved shape extending in a direction inclined with respect to the optical axis direction (Z-axis direction) toward a second axis direction (Y-axis direction) at the edge of the rotation protrusion 1026). In addition, the cross-section of the placement groove 1028 may have various shapes such as a circular shape and a polygonal shape. All components other than the placement groove 1028 are the same as Figure 17 and Figure 18 all components of the camera module 1003, and thus detailed descriptions thereof will be omitted.

[0193] In addition, due to the structure in which the placement groove 1028 is provided in the rotation holder 1120-3, only the position where the fourth support member 1143 is provided is slightly different from Figure 17 and Figure 18 the position where the fourth support member 1143 is provided in the camera module 1003, and the mechanism through which the rotation holder 1120-3 rotates about a first axis (X-axis) or a second axis (Y-axis) is the same as Figure 17 and Figure 18 the mechanism through which the rotation holder 1120-3 of the camera module 1003 rotates about a first axis (X-axis) or a second axis (Y-axis). Therefore, in Figure 17 and Figure 18 this mechanism is shown in Figures 19A to 19C and Figures 20A to 20C of the camera module 1003.

[0194] Figure 25 is a perspective view showing another example of a portable electronic device.

[0195] Referring to Figure 25, the portable electronic device 2 is a portable electronic device such as a mobile communication terminal, a smart phone, or a tablet personal computer (PC) in which the camera modules 500 and 1000 are installed.

[0196] At least one of the camera modules 500 and 1000 may be the camera module 1001, 1002, 1003, 1004, or 1005 referred to Figures 2 to 24 in the above.

[0197] That is to say, a portable electronic device including a dual camera module may include the camera module 1001, 1002, 1003, 1004, or 1005 as at least one of the two camera modules.

[0198] As described above, the reflection module for OIS and the camera module including the reflection module for OIS have a simple structure and a reduced size while implementing an autofocus function, a zoom function, and an OIS function. In addition, the power consumption is significantly reduced.

[0199] Although the present disclosure includes specific examples, it will be apparent after understanding the present application that various changes in form and detail can be made to these examples without departing from the spirit and scope of the claims and their equivalents. The examples described herein will be considered only in a descriptive sense and not for the purpose of limitation. The description of the features or aspects in each example will be considered applicable to similar features or aspects in other examples. Appropriate results can be obtained if the described techniques are performed in a different order, and / or if the components in the described system, architecture, device, or circuit are combined in a different manner and / or replaced or supplemented with other components or their equivalents. Therefore, the scope of the present disclosure is not limited by the specific embodiments, but is defined by the claims and their equivalents, and all variations within the scope of the claims and their equivalents will be construed as being included in the present disclosure.

Claims

1. A reflection module for optical image stabilization, the reflection module comprising: A housing including an internal space; A rotation holder disposed in the internal space and including a reflection member; A rotating plate rotatably disposed between the housing of the reflection module and the rotation holder and configured to rotatably support the rotation holder; And A driving unit configured to apply a driving force for rotating the rotation holder, Wherein the rotation holder is configured to be rotatable about a first axis located at a first surface of the rotating plate and a second axis located at a second surface of the rotating plate opposite to the first surface, and Wherein the first axis and the second axis are perpendicular to each other and are respectively parallel to the width direction and the height direction of the rotating plate.

2. The reflection module according to claim 1, the reflection module further comprising: A first support member disposed on the first surface of the rotating plate and configured to be arranged along the first axis; And A second support member disposed on the second surface of the rotating plate and configured to be arranged along the second axis.

3. The reflection module according to claim 2, wherein The first support member includes a plurality of first support protrusions arranged along the direction of the first axis, and Wherein the second support member includes a plurality of second support protrusions arranged along the direction of the second axis, Wherein the first support protrusions and the second support protrusions are spherical, hemispherical or spherical crown-shaped.

4. The reflection module according to claim 2, wherein The housing of the reflection module includes a first guiding groove, at least a part of the first support member is received in the first guiding groove, and Wherein the rotation holder includes a second guiding groove, at least a part of the second support member is received in the second guiding groove.

5. The reflection module according to claim 1, wherein The driving unit includes a first driving magnet and a first driving coil, the first driving magnet and the first driving coil are arranged to face each other in a direction parallel to the first axis, Wherein the first driving magnet is disposed on the rotation holder, and Wherein the first driving coil is disposed in the housing of the reflection module.

6. The reflection module according to claim 5, wherein, The driving unit further includes a second driving magnet and a second driving coil, the second driving magnet and the second driving coil are arranged to face each other in a direction parallel to the second axis, Wherein the second driving magnet is disposed on the rotation holder, and Wherein the second driving coil is disposed in the housing of the reflection module.

7. The reflection module according to claim 6, wherein the reflection module further comprises: A position sensor disposed inside the first driving coil and inside the second driving coil for detecting the position of the rotation holder.

8. The reflection module according to claim 6, wherein The housing of the reflection module includes a through hole, and Wherein the first driving coil and the second driving coil are exposed to the internal space of the housing of the reflection module through the through hole.

9. The reflection module according to claim 1, the reflection module further comprising: A first magnetic member configured to move together with the rotation holder; A second magnetic member disposed in the housing of the reflection module and facing the first magnetic member; Wherein, the rotation retaining member is supported in the housing of the reflection module by the magnetic force between the first magnetic member and the second magnetic member.

10. The reflection module according to any one of claims 1-9, wherein, The rotation retaining member further includes an inclined mounting surface, and the reflecting member is disposed on the mounting surface, and wherein, the reflecting member is a mirror or a prism.

11. The reflection module according to claim 9, wherein, The rotating plate is entirely defined within the internal space of the housing of the reflection module; the rotation retaining member is entirely located within the internal space of the housing of the reflection module; Wherein, the first magnetic member and the second magnetic member are opposite to each other in the direction of the third axis, and the third axis is perpendicular to the first axis and the second axis.

12. The reflection module according to claim 2, wherein The rotation retaining member is supported in the housing of the reflection module along the direction of the third axis by the first support member and the second support member, and the third axis is perpendicular to the first axis and the second axis.

13. The reflection module according to any one of claims 2-4, wherein, The rotating plate is rotatable relative to the housing of the reflection module about the first axis, and The rotation retaining member is rotatable relative to the rotating plate about the second axis.

14. The reflection module according to claim 13, wherein, When the rotating plate rotates about the first axis, the rotation retaining member rotates as the rotating plate rotates, and When the rotation retaining member rotates about the second axis, the rotation retaining member rotates relative to the rotating plate.

15. The reflection module according to any one of claims 2-4, wherein, The first support member and the second support member are integrally provided with the rotating plate.

16. The reflection module according to claim 12, wherein, The first axis and the second axis are perpendicular to the optical axis, and the third axis is parallel to the optical axis.

17. The reflection module according to claim 1, wherein, The driving unit includes: A first driving magnet disposed on a side surface of the rotation retaining member; and A second driving magnet disposed on a bottom surface of the rotation retaining member.

18. A camera module, comprising: The reflection module according to any one of claims 1-17; And A lens module including a lens configured to receive light emitted from the reflection module.

19. The camera module according to claim 18, wherein, The lens module further includes: A lens holder that supports the lens and is capable of moving in a direction parallel to the optical axis of the lens; and A lens driving unit configured to apply a driving force for moving the lens holder, Wherein, the lens driving unit includes a third driving magnet and a third driving coil disposed opposite to each other.

20. The camera module according to claim 19, wherein, The third driving magnet and the third driving coil are disposed opposite to each other in a direction perpendicular to the optical axis, and Wherein, the third driving magnet is disposed on the lens holder, and the third driving coil is disposed in the housing of the lens module.

21. The camera module according to claim 20, wherein the camera module further comprises: A yoke disposed in the housing of the lens module and facing the third driving magnet, Wherein, the lens holder is supported in the housing of the lens module by the magnetic force between the third driving magnet and the yoke.

22. The camera module according to claim 19, the camera module further comprising: A ball member disposed between the lens holder and the housing of the lens module to guide the movement of the lens holder.

23. The camera module according to claim 20, the camera module further comprising: A cover that covers the housing of the reflection module and the housing of the lens module and has an opening through which incident light travels.

24. The camera module according to any one of claims 18-23, wherein the camera module further comprises an image sensor module, and the image sensor module includes: An image sensor that converts light passing through the lens into an electrical signal; A printed circuit board on which the image sensor is mounted; A filter that filters light incident on the filter from the lens module.

25. The camera module according to claim 20, wherein, The reflection module further includes a first main board mounted on the housing of the reflection module, and a drive coil of the drive portion of the reflection module is mounted on the first main board. Wherein, the lens module further includes a second main board mounted on the housing of the lens module, and the third drive coil is mounted on the second main board.

26. The camera module according to claim 25, wherein, The housing of the lens module includes a through hole, and the third drive coil is exposed to the inside of the housing of the lens module through the through hole.

27. A reflection module for optical image stabilization, the reflection module comprising: A housing including an internal space; A rotation holder rotatably disposed in the internal space of the housing and configured to support a reflection member for changing a path of incident light; A rotation plate disposed between the rotation holder and the housing to rotatably support the rotation holder; And A drive portion configured to apply a driving force for rotating the rotation holder about first and second axes perpendicular to each other, wherein the first and second axes are perpendicular to the optical axis. Wherein, the drive portion includes: A first drive magnet disposed on a side surface of the rotation holder; and A second drive magnet disposed on a bottom surface of the rotation holder, and Wherein, the first axis is located at a first surface of the rotation plate, and the second axis is located at a second surface of the rotation plate opposite to the first surface.

28. The reflection module according to claim 27, wherein, The drive portion further includes: A first drive coil disposed in the housing and facing the first drive magnet; and A second drive coil disposed in the housing and facing the second drive magnet.

29. The reflection module according to claim 27 or 28, Among them, The rotation plate includes: A plurality of first support protrusions disposed along the direction of the first axis; and A plurality of second support protrusions disposed along the direction of the second axis, the direction of the second axis being perpendicular to the direction of the first axis. Wherein, the first support protrusions and the second support protrusions are spherical, hemispherical or spherical crown-shaped.

Images