Jitter compensation reflection module, camera module and portable electronic device
By setting a jitter compensation actuator in the camera module, the reflection member is inclined relative to the axis perpendicular to the optical axis of the lens module, the problem of image fluctuation at high zoom magnification is solved, and the jitter compensation performance is improved.
Patent Information
- Application Number
- CN202111384760.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Priority Date
- 2021-01-07
- Filing Date
- 2021-11-19
- Publication Date
- 2025-02-25
- Estimated Expiration
- 2041-11-19
AI Technical Summary
In a camera module with high zoom magnification, the distance between light travels from the prism to the image sensor increases, resulting in an increase in the degree of fluctuation of the image on the image sensor, which in turn affects the jitter compensation performance.
By providing a jitter compensation actuator in the camera module, the reflective member is inclined relative to the axis perpendicular to the optical axis of the lens module, precise control of the prism is achieved by using the electromagnetic interaction between the magnet and the coil.
Improves jitter compensation performance at high zoom magnification, ensuring image clarity and stability.
Smart Images

Figure CN114740671B_ABST
Abstract
Description
[0001] CROSS-REFERENCE TO RELATED APPLICATIONS
[0002] This application claims the benefit of priority from Korean Patent Application No. 10-2021-0001915 filed on January 7, 2021, in the Korean Intellectual Property Office, the disclosure of which is incorporated herein in its entirety for all purposes by reference. Technical Field
[0003] The following description relates to a camera module, and more particularly, to a technology regarding a driving unit for preventing optical image shake. Background Art
[0004] Camera modules provided in mobile devices have been manufactured to have performance levels comparable to those of conventional cameras. In particular, as the frequency of capturing images using mobile devices increases, demand for camera modules capable of providing high zoom magnification increases.
[0005] In order to increase the zoom magnification, the distance that the light incident in the camera moves to the image sensor, i.e., the total track length (TTL), must be increased. In order to provide a relatively long total track length, the length of the camera may be increased. Folding cameras have been configured to have a relatively long total track length, which is obtained by switching the light from the rear of the mobile device by about 90 degrees using a reflector such as a prism.
[0006] Typically, a camera module includes: a lens barrel including a lens disposed therein; and a housing that accommodates the lens barrel therein. The camera module also includes an image sensor configured to convert an image of an object into an electrical signal. A short-focus camera module configured to image an object with a fixed focus has been used. However, recently, in line with technological developments, a camera module including an actuator capable of autofocus has been adopted. In addition, the camera module uses an actuator for optical image stabilization (OIS) to reduce the degradation of resolution due to camera shake.
[0007] Optical image stabilization can be achieved by tilting the prism in the folding camera. For example, the prism can be tilted using the electromagnetic interaction between a magnet fixedly disposed in the prism and a coil disposed opposite to the magnet, and thus, the direction of the light reflected from the prism can be adjusted. However, since the jitter compensation drive unit (magnet or coil) cannot be disposed on the path of the light through the prism, the arrangement position of the jitter compensation drive unit is limited. For example, in a jitter compensation drive unit for tilting a prism extending in the length direction on two axes, a pair of magnets for uniaxial tilting can be symmetrically arranged at both ends of the prism in the length direction, but the magnets for the other uniaxial tilting cannot be symmetrically arranged. Therefore, due to the asymmetrically arranged jitter compensation drive unit, the jitter compensation performance may deteriorate.
[0008] For high zoom magnifications, the distance that light travels from the prism to the image sensor needs to be increased. As the distance increases, the degree of fluctuation of the image formed on the image sensor increases according to the tilt of the prism. Therefore, it is more important to accurately control the prism in high zoom magnifications. Summary of the invention
[0009] The purpose of providing this summary is to introduce a selection of inventive concepts in a concise form, and these inventive concepts will be further described in the following detailed description. This summary is not intended to identify the key features or essential features of the subject matter claimed, nor is it intended to help determine the scope of the subject matter claimed.
[0010] In one general aspect, a camera module includes: a first lens module disposed in a housing and including at least one lens; a reflective member configured to change a path of light toward the first lens module; an extending member configured to move with the reflective member and disposed between the reflective member and the first lens module; and a shake compensation actuator disposed in the extending member and configured to tilt the reflective member relative to an axis perpendicular to an optical axis of the first lens module.
[0011] The shake compensation actuator may include a magnet provided on a surface of the extension member parallel to the optical axis and a coil facing the magnet.
[0012] The magnet may include a first pair of magnets fixedly disposed in the extension member and facing each other in a first direction perpendicular to the optical axis. The coil may include a first pair of coils fixedly disposed in the housing and facing the first pair of magnets.
[0013] The magnet may include a second pair of magnets fixedly disposed in the extension member and facing each other in a second direction perpendicular to both the optical axis and the first direction. The coil may include a second pair of coils respectively fixedly disposed in the housing and facing the second pair of magnets.
[0014] The camera module may further include: a pair of position sensors disposed at positions respectively corresponding to the magnets configuring the first pair of magnets. The reflective member may include a reflective surface configured to change the direction of light, and the tilt axis of the reflective member is parallel to the reflective surface.
[0015] The extension member may include a transparent material and allow light reflected from the reflective member to pass through the extension member.
[0016] The extension member may include a through portion allowing light reflected from the reflective member to pass through the extension member.
[0017] The camera module may further include a rotating bracket accommodating the reflective member. The extending member may extend from the rotating bracket toward the first lens module.
[0018] The camera module may further include at least one additional lens disposed in the extending member.
[0019] The camera module may further include a second lens module spaced apart from the first lens module in a direction of the optical axis.
[0020] The camera module may further include an actuator configured to independently move the first lens module and the second lens module in a direction of the optical axis.
[0021] The camera module may further include a ball member disposed between the reflective member and the housing. The reflective member may be configured to be tilted relative to an axis perpendicular to the optical axis in a state where the reflective member is supported in the housing in a direction parallel to the optical axis by the ball member.
[0022] The camera module may further include: a first magnetic member coupled to the reflective member; and a second magnetic member fixedly disposed in the housing and facing the first magnetic member. The ball member may support the reflective member in a direction parallel to the optical axis by magnetic attraction generated between the first magnetic member and the second magnetic member.
[0023] In another general aspect, a camera module includes: a lens module disposed in a housing and including at least one lens; a reflective assembly configured to reflect light incident in a first direction toward the lens module; and a shake compensation actuator configured to tilt the reflective assembly relative to an axis perpendicular to both the first direction and an optical axis of the lens module. The shake compensation actuator includes a pair of magnets fixedly disposed in the reflective assembly and facing each other in the first direction, and a pair of coils fixedly disposed in the housing and facing the pair of magnets.
[0024] The reflective assembly may include a reflective member configured to reflect light and a structure fixedly coupled to the reflective member, with a pair of magnets mounted in the structure.
[0025] In another general aspect, a jitter compensation reflection module includes: a shell; a reflection member disposed in the shell and allowing incident light to change path and leave the reflection member; an extension member configured to move together with the reflection member and extend in a direction in which light with changed path leaves the reflection member; and a jitter compensation actuator disposed in the extension member and enabling the reflection member to tilt relative to an axis perpendicular to the direction in which the light leaves the reflection member.
[0026] The extension member may include an open space allowing the light whose path is changed to pass therethrough after leaving the reflective member.
[0027] The extension member may be formed of a transparent material.
[0028] The jitter compensation reflective module may further include at least one additional lens disposed within the open space.
[0029] The shake compensation actuator may include first and second magnets respectively disposed in sides of the reflection member, the first and second magnets being spaced apart from each other in a first direction perpendicular to a direction in which the path-changed light exits the reflection member.
[0030] The shake compensation actuator may include third and fourth magnets respectively disposed in sides of the reflection member, the third and fourth magnets being spaced apart from each other in a second direction perpendicular to the first direction and a direction in which the path-changed light exits the reflection member.
[0031] The incident light may be incident to the reflective member in a direction perpendicular to a direction in which the path-changed light exits the reflective member.
[0032] In another general aspect, a portable electronic device includes a camera module, which includes: a lens module disposed in a housing and including at least one lens; a reflective member configured to change a path of light incident to the reflective member toward the lens module; an extending member configured to move with the reflective member and extend from the reflective member; and a shake compensation actuator disposed in the extending member and configured to tilt the reflective member.
[0033] An optical axis of the lens module may extend perpendicularly to a direction from a front surface of the portable electronic device to a rear surface of the portable electronic device.
[0034] The extension member may include an open space allowing light to pass therethrough after passing through the reflective member.
[0035] The extension member may be formed of a transparent material.
[0036] The extending member may be disposed between the reflective member and the lens module.
[0037] The shake compensation actuator may also be configured to tilt the reflective member relative to an axis perpendicular to the optical axis of the lens module.
[0038] The extending member may extend toward the lens module.
[0039] Other features and aspects will become apparent from the appended claims, the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS
[0040] Figure 1 is a perspective view of a portable electronic device according to an embodiment.
[0041] Figure 2 is a perspective view of a camera module according to an embodiment.
[0042] Figure 3 It is along Figure 2 A cross-sectional view taken along line II'.
[0043] Figure 4 An extension member according to an embodiment is shown. Figure 5 According to the implementation method Figure 2 An exploded perspective view of the camera module.
[0044] Figure 6 is an exploded perspective view of a rotating bracket and a rotating plate according to an embodiment.
[0045] Figure 7 is an exploded perspective view of a rotating bracket and a housing according to an embodiment.
[0046] Figure 8 A shake compensation actuator according to an embodiment is shown.
[0047] Fig. 9 A shake compensation actuator according to an embodiment is shown.
[0048] Fig.10 An extension member according to an embodiment is shown.
[0049] Fig.11 An extension member according to an embodiment is shown.
[0050] Fig.12 An extension member according to an embodiment is shown.
[0051] Fig.13 An extension member according to an embodiment is shown.
[0052] Fig.14 is a perspective view of a portable electronic device according to an embodiment.
[0053] Throughout the drawings and detailed description, the same reference numerals will be understood to refer to the same elements, features, and structures. For purposes of clarity, illustration, and convenience, the drawings may not be drawn to scale, and the relative sizes, proportions, and depictions of elements in the drawings may be exaggerated. DETAILED DESCRIPTION
[0054] The following specific embodiments are provided to help the reader gain a comprehensive understanding of the methods, devices and / or systems described in this application. However, various changes, modifications and equivalents of the methods, devices and / or systems described in this application will be apparent to those of ordinary skill in the art. For example, the order of operations described in this application is merely an example, and except for operations that must occur in a specific order, it is not limited to the order set forth in this application, but can be changed, which will be apparent to those of ordinary skill in the art. In addition, for greater clarity and brevity, the description of functions and structures that will be familiar to those of ordinary skill in the art may be omitted.
[0055] The features described in this application can be implemented in different forms and should not be understood as being limited to the examples described in this application. Rather, the examples described in this application are only provided to make this disclosure thorough and complete and to fully convey the scope of this disclosure to those of ordinary skill in the art.
[0056] It should be noted that in this application, the use of the word "may" with respect to an embodiment or example (for example, with respect to what an embodiment or example may include or implement) means that there is at least one embodiment or example that includes or implements such features, and all embodiments and examples are not limited thereto.
[0057] Throughout the specification, when an element such as a layer, a region, or a substrate is described as being “on,” “connected to,” or “coupled to” another element, the element may be directly “on,” “connected to,” or “coupled to” the other element, or one or more other elements may be present between the element and the other element. Conversely, when an element is described as being “directly on,” “directly connected to,” or “directly coupled to” another element, no other elements may be present between the element and the other element.
[0058] As used in this application, the term "and / or" includes any one of the associated listed items and any combination of any two or more items.
[0059] Although the terms "first", "second" and "third" may be used in this application to describe various members, components, regions, layers or parts, these members, components, regions, layers or parts are not limited by these terms. More specifically, these terms are only used to distinguish one member, component, region, layer or part from another member, component, region, layer or part. Therefore, without departing from the teachings of the examples described in this application, the first member, first component, first region, first layer or first part mentioned in these examples may also be referred to as the second member, second component, second region, second layer or second part.
[0060] Spatially relative terms such as "above", "higher", "below", and "lower" may be used in this application for descriptive convenience to describe the relationship of one element relative to another element as shown in the accompanying drawings. In addition to covering the orientations depicted in the accompanying drawings, these spatially relative terms are intended to also cover different orientations of the device in use or operation. For example, if the device in the accompanying drawings is flipped, an element described as being "above" or "higher" relative to another element will be "below" or "lower" relative to the other element. Therefore, depending on the spatial orientation of the device, the term "above" covers both orientations of "above" and "below". The device may also be oriented in other ways (e.g., rotated 90 degrees or in other orientations), and the spatially relative terms used in this application should be interpreted accordingly.
[0061] The terms used in this application are only used to describe various examples and are not used to limit the present disclosure. Unless the context clearly indicates otherwise, the articles "a", "an" and "the" are intended to also include plural forms. The words "include", "comprise" and "have" indicate the presence of the features, numbers, operations, components, elements and / or their combinations, but do not exclude the presence or addition of one or more other features, numbers, operations, components, elements and / or their combinations.
[0062] Variations in the shapes shown in the drawings may occur due to manufacturing techniques and / or tolerances. Therefore, the examples described in the present application are not limited to the specific shapes shown in the drawings, but include variations in shapes that occur during manufacturing.
[0063] Features of the examples described in this application may be combined in various ways that will be apparent after understanding the present disclosure. In addition, although the examples described in this application have various configurations, other configurations that will be apparent after understanding the present disclosure are also possible.
[0064] Figure 1 is a perspective view of a portable electronic device according to an embodiment.
[0065] Reference 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 PC equipped with a camera module 1000 .
[0066] like Figure 1 As shown, the portable electronic device 1 is equipped with a camera module 1000 to image an object. The camera module 1000 may include a plurality of lenses, and the optical axis (Z axis) of the lens may face 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 opposite direction) of the portable electronic device 1.
[0067] For example, the optical axis (Z axis) of the lens provided in the camera module 1000 may be formed in the width direction or the length direction (Z axis direction or X axis direction) of the portable electronic device 1. Therefore, even if the camera module 1000 has functions such as auto focus (AF), zoom, and / or optical image stabilization (OIS) (or shake compensation), the thickness of the portable electronic device 1 may not be increased. Therefore, the portable electronic device 1 may be compact.
[0068] Figure 2 is a perspective view of a camera module 1000 according to an embodiment. Figure 3 It is along Figure 2 A cross-sectional view taken along line II'. Figure 4 An extension member according to an embodiment is shown. Figure 5 is an exploded perspective view of a camera module 1000 according to an embodiment. Figure 6 is an exploded perspective view of a rotating bracket and a rotating plate according to an embodiment. Figure 7 is an exploded perspective view of a rotating bracket and a housing according to an embodiment.
[0069] The camera module 1000 includes, for example, a reflection module 1100 , a lens module 1200 , and an image sensor module 1300 , which are disposed in a housing 1010 .
[0070] The reflection module 1100, the lens module 1200, and the image sensor module 1300 are sequentially arranged in the housing 1010 from one side of the housing 1010 to the other side of the housing 1010. The housing 1010 may have an internal space in which the reflection module 1100, the lens module 1200, and the image sensor module 1300 are accommodated. For example, a printed circuit board (PCB) 1320 including the image sensor module 1300 may be attached to the outside of the housing 1010. For example, as shown, the housing 1010 may be integrally formed so that both the reflection module 1100 and the lens module 1200 are accommodated in the internal space of the housing 1010. However, the present disclosure is not limited to the above-mentioned configuration of the housing 1010, and for example, separate housings including the reflection module 1100 and the lens module 1200, respectively, may be interconnected.
[0071] The housing 1010 is covered by the cover 1030 so that the inner space of the housing 1010 is not visible. The cover 1030 has an opening 1031 through which light is incident, and the traveling direction of the light incident through the opening 1031 is changed by the reflection module 1100 so that the light incident through the opening 1031 is incident on the lens module 1200. The cover 1030 may be integrally formed to cover the entirety of the housing 1010, or may be provided as separate members that cover the reflection module 1100 and the lens module 1200, respectively.
[0072] The reflection module 1100 includes a reflection member 1110 configured to reflect light. Light incident on the lens module 1200 passes through a lens and is then converted into an electrical signal by the image sensor 1310 and stored.
[0073] Reference Figure 6 and Figure 7 , the reflection module 1100 is a structure in the rotating bracket 1120, and is in close contact with the inner wall surface of the housing 1010 and supported by the inner wall surface of the housing 1010 through the attraction between the first magnetic member 1153 provided on the inner wall surface of the housing 1010 and the second magnetic member 1151 provided in the rotating bracket 1120. The first magnetic member 1153 and the second magnetic member 1151 are configured to generate magnetic attraction to each other. For example, the first magnetic member 1153 may be a yoke, and the second magnetic member 1151 may be a magnet. As another example, the first magnetic member 1153 may be a magnet, and the second magnetic member 1151 may be a magnet or a yoke. Through the magnetic attraction between the first magnetic member 1153 and the second magnetic member 1151, the rotating bracket 1120 can be pulled toward one side of the housing 1010 in a direction parallel to or substantially parallel to the optical axis, and the ball members 1131 and 1133 provided between the rotating bracket 1120 and the housing 1010 can support the rotating bracket 1120 in a direction parallel to the optical axis.
[0074] The reflection module 1100 is configured to change the traveling direction of light. For example, the light incident through the opening 1031 of the cover 1030 (see Figure 3 ) can be changed toward the lens module 1200 by the reflection module 1100, and the cover 1030 covers the upper part of the camera module 1000. To this end, the reflection module 1100 may include a reflection member 1110 that reflects light. The reflection member 1110 can change the traveling direction of light incident through the opening 1031. For example, the reflection member 1110 may be a reflector or a prism configured to reflect light (for ease of explanation, the reflection member 1110 is shown as a prism in the drawings). The path of light incident through the opening 1031 is changed toward the lens module 1200 by the reflection module 1100. For example, the path of light incident in the thickness direction (Y-axis direction) of the camera module 1000 can be changed by the reflection module 1100 to be approximately consistent with the optical axis (Z-axis) direction.
[0075] The lens module 1200 includes a plurality of lenses through which light whose traveling direction is changed by the reflection module 1100 passes, and the image sensor module 1300 includes an image sensor 1310 configured to convert the light passing through the plurality of lenses into an electrical signal and a printed circuit board (PCB) 1320 on which the image sensor 1310 is mounted. In addition, the image sensor module 1300 may include a filter 1340 that filters light incident from the lens module 1200. For example, the filter 1340 may be an infrared cut filter.
[0076] 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 located behind the lens module 1200 , with respect to a direction in which light passes through the lens module 1200 .
[0077] In an embodiment, the lens module 1200 may include two or more lens modules. For example, the lens module 1200 may include a first lens module 1201 and a second lens module 1202. The first lens module 1201 and the second lens module 1202 are spaced apart from each other in a direction parallel to the optical axis. In an embodiment, the camera module 1000 may include an actuator configured to move each of the first lens module 1201 and the second lens module 1202 in a direction parallel to the optical axis. In this case, the first lens module 1201 and the second lens module 1202 may be independently controlled. For example, in a direction parallel to the optical axis, the distance between the first lens module 1201 and the second lens module 1202 may be increased or decreased. For example, although not shown, a magnet for shake compensation may be fixed to each of the first lens module 1201 and the second lens module 1202, and a coil opposite to the magnet may be provided in the housing 1010 (or the main substrate 1070).
[0078] When capturing an image or video, the image may be blurred or the video may be jittery due to the user's jitter, etc. In this case, the camera module 1000 may compensate for the user's jitter (or the electronic device (e.g., Figure 1 Electronic device 1 or Fig.14 For example, when jitter occurs due to user jitter during image capture or video shooting, the jitter can be compensated by applying a relative displacement corresponding to the jitter to the reflective member 1110.
[0079] like Figure 3 and Figure 5 As shown, in an embodiment, the camera module 1000 may include a shake compensation actuator 1140 configured to move the reflective member 1110. The shake compensation actuator 1140 may include a voice coil motor. For example, the shake compensation actuator 1140 may include a plurality of magnets 1141a, 1143a, 1145a, and 1147a configured to move with the reflective member 1110 and a plurality of relative coils 1141b, 1143b, 1145b, and 1147b facing the plurality of magnets 1141a, 1143a, 1145a, and 1147a, respectively.
[0080] Reference Figure 5 Since the plurality of coils 1141b, 1143b, 1145b and 1147b are arranged in the shell 1010 while being mounted on the main substrate 1070, a plurality of through holes 1015 and 1016 can be formed in the shell 1010 so that the plurality of coils 1141b, 1143b, 1145b and 1147b can be exposed to the internal space of the shell 1010.
[0081] The shake compensation actuator 1140 may be configured to enable the reflective member 1110 to be tilted relative to an axis perpendicular to the optical axis of the lens module 1200 (e.g., tilted around an axis perpendicular to the optical axis of the lens module 1200 or tilted around an axis perpendicular to the optical axis of the lens module 1200). For example, when the optical axis of the lens module 1200 is parallel to the Z axis, the shake compensation actuator 1140 may be configured to rotate the reflective member 1110 within a predetermined range relative to the X axis and / or the Y axis.
[0082] When power is applied to some or all of the multiple coils 1141b, 1143b, 1145b and 1147b, the reflective member 1110 in which the magnets 1141a, 1143a, 1145a and 1147a are fixedly disposed can rotate relative to the first axis (X axis) and the second axis (Y axis) by electromagnetic influence between the magnets 1141a, 1143a, 1145a and 1147a and the coils 1141b, 1143b, 1145b and 1147b, respectively.
[0083] Reference Figure 3 In an embodiment, the reflective member 1110 may include a reflective surface 1111 parallel to the X-axis, and light incident on one side of the reflective member 1110 may be reflected toward the optical axis by the reflective surface 1111. In this case, the shake compensation actuator 1140 may rotate the reflective member 1110 relative to an axis parallel to the reflective surface 1111 of the reflective member 1110. In the illustrated embodiment, the reflective surface 1111 of the reflective member 1110 may be a plane parallel to the X-axis, and the shake compensation actuator 1140 may rotate the reflective member 1110 relative to the X-axis.
[0084] Reference Figures 3 to 5 In an embodiment, the entire reflection module 1100 may be configured to move together with the reflection member 1110, and may include an extension member 1160 extending toward the lens module 1200. The extension member 1160 may be disposed between the reflection member 1110 and the lens module 1200, may be configured to rotate together with the reflection member 1110, and may be disposed so as not to interfere with light entering the lens module 1200 after being reflected from the reflection member 1110. For example, the extension member 1160 may be formed of a transparent material (e.g., transparent plastic, glass, etc.). As another example, the extension member 1160 may include a through portion configured to allow light to pass therethrough.
[0085] In an embodiment, the shake compensation actuator 1140 may be provided in the extension member 1160. In an embodiment, magnets 1141a, 1143a, 1145a, and 1147a for shake compensation may be attached to a portion of the extension member 1160 other than a portion through which light passes through the reflective member 1110. For example, the magnets 1141a, 1143a, 1145a, and 1147a for shake compensation may be provided in a portion of the extension member 1160 facing a direction perpendicular to the optical axis.
[0086] In an embodiment, the jitter compensation actuator 1140 may include: a pair of magnets that are fixedly disposed in the extension member 1160 and face each other in a direction perpendicular to the optical axis (e.g., the X direction or the Y direction); and a pair of coils that are fixedly disposed in the housing and face the pair of magnets.
[0087] Reference Figures 3 to 5 In an embodiment, the shake compensation actuator 1140 may be configured to be driven in two directions perpendicular to the optical axis. In an embodiment, the magnets 1141a and 1147a of the shake compensation actuator 1140 may be configured as a first pair of magnets that are fixedly disposed in the extension member 1160 and face each other in a first direction (e.g., Y direction) perpendicular to the optical axis, and the coils 1141b and 1147b of the shake compensation actuator 1140 may be configured as a first pair of coils that are fixedly disposed in the housing 1010 and face the first pair of magnets 1141a and 1147a. In addition, the magnets 1143a and 1145a of the jitter compensation actuator 1140 can be configured as a second pair of magnets, which are fixedly disposed in the extension member 1160 and face each other in a second direction (e.g., the X direction) perpendicular to both the optical axis and the first direction, and the coils 1143b and 1145b of the jitter compensation actuator 1140 can be configured as a second pair of coils, which are fixedly disposed in the housing 1010 and face the second pair of magnets 1143a and 1145a.
[0088] In an embodiment, the camera module 1000 may include a reflective assembly that reflects light incident in a first direction (e.g., −Y direction) toward the lens module 1200. In an embodiment, the reflective assembly may include a reflective member 1110 and a structure fixedly coupled to the reflective member 1110 and allowing the shake compensation actuator 1140 to be installed therein. For example, the reflective assembly may include an extension member 1160 on which magnets 1141a, 1143a, 1145a, and 1147a for shake compensation may be installed.
[0089] The coils 1141b, 1143b, 1145b, and 1147b are installed in the housing 1010. For example, the coils 1141b, 1143b, 1145b, and 1147b may be installed in the housing 1010 with the main substrate 1070 as a medium. That is, for example, the coils 1141b, 1143b, 1145b, and 1147b are provided on the main substrate 1070, and the main substrate 1070 is installed on the housing 1010.
[0090] In an embodiment, the main substrate 1070 may be disposed to surround at least a portion of the extension member 1160. The main substrate 1070 may surround the extension member 1160 to face the magnets 1141a, 1143a, 1145a, and 1147a mounted on the extension member 1160, and the coils 1141b, 1143b, 1145b, and 1147b facing the magnets 1141a, 1143a, 1145a, and 1147a, respectively, may be attached to the main substrate 1070. Figure 5 , a portion of the main substrate 1070 may be bent into a rectangular frame shape to face the magnets 1141a, 1143a, 1145a, and 1147a provided in the extension member 1160. The magnets 1141a, 1143a, 1145a, and 1147a may be referred to as the first magnet, the second magnet, the third magnet, and the fourth magnet, respectively, and the coils 1141b, 1143b, 1145b, and 1147b may be referred to as the first coil, the second coil, the third coil, and the fourth coil, respectively. The first coil 1141b and the second coil 1147b are respectively provided in the lower portion and the upper portion of the main substrate 1070, and face the first magnet 1141a and the second magnet 1147a, respectively. The third coil 1143b and the fourth coil 1145b are respectively provided on both sides of the main substrate 1070, and face the third magnet 1143a and the fourth magnet 1145a, respectively.
[0091] Reference Figures 3 to 5 , the reflective member 1110 is fixed to the rotating bracket 1120. The rotating bracket 1120 includes a mounting surface 1123, on which the reflective member 1110 is mounted. The mounting surface 1123 of the rotating bracket 1120 can be configured as an inclined surface, thereby changing the path of light. For example, the mounting surface 1123 can be an inclined surface inclined by 30 to 60 degrees relative to the optical axis (Z axis) of the lens. In addition, the inclined surface of the rotating bracket 1120 can face the opening 1031 of the cover 1030, through which light is incident.
[0092] The rotating bracket 1120 is movably accommodated in the internal space of the housing 1010. For example, the rotating bracket 1120 may be accommodated to be rotatable relative to the first axis (X axis) and the second axis (Y axis) in the housing 1010. The first axis (X axis) and the second axis (Y axis) may be axes perpendicular to the optical axis (Z axis), and the first axis (X axis) and the second axis (Y axis) may be perpendicular to each other.
[0093] Reference Figures 5 to 7 In an embodiment, the camera module 1000 may further include ball members 1131 and 1133 disposed between the reflective member 1110 and the housing 1010. For example, the ball members 1131 and 1133 may be disposed between the housing 1010 and the rotating bracket 1120, and the reflective member 1110 may rotate as the rotating bracket 1120 rotates based on the ball members 1131 and 1133. In an embodiment, magnetic attraction acts between the rotating bracket 1120 and the housing 1010 through the first magnetic member 1153 and the second magnetic member 1151, and therefore, the rotating bracket 1120 may rotate in a direction parallel to the optical axis while being supported by the ball members 1131 and 1133.
[0094] The rotating bracket 1120 is supported in the housing 1010 by a first ball member 1131 aligned along a first axis (X axis) and a second ball member 1133 aligned along a second axis (Y axis) so that the rotational motion relative to the first axis (X axis) and the second axis (Y axis) is smooth. In the accompanying drawings, as an example, two first ball members 1131 aligned along the first axis (X axis) and two second ball members 1133 aligned along the second axis (Y axis) are disclosed. In addition, the rotating bracket 1120 can be rotated relative to the first axis (X axis) and the second axis (Y axis) by the shake compensation actuator 1140.
[0095] In addition, the first ball member 1131 and the second ball member 1133 may be disposed on the front surface and the rear surface of the rotating plate 1130, respectively. In another embodiment, the positions of the first ball member 1131 and the second ball member 1133 on the rear surface and the front surface of the rotating plate 1130 may be reversed relative to the illustrated embodiment. That is, the first ball member 1131 may be aligned along the second axis (Y axis), and the second ball member 1133 may be aligned along the first axis (X axis). Hereinafter, for ease of description, the structure shown in the drawings will be described.
[0096] The rotating plate 1130 may be disposed between the rotating bracket 1120 and the inner surface of the housing 1010. The rotating bracket 1120 may be supported in the housing 1010 by the attraction between the second magnetic member 1151 and the first magnetic member 1153 as a medium of the rotating plate 1130. The second ball member 1133 supports the rotating bracket 1120 in a direction parallel to the optical axis (i.e., the Z direction) by being disposed between the rotating plate 1130 and the rotating bracket 1120. The first ball member 1131 supports the rotating plate 1130 and the rotating bracket 1120 in a direction parallel to the optical axis by being disposed between the housing 1010 and the rotating plate 1130.
[0097] The front and rear surfaces of the rotating plate 1130 may have first and second seating grooves 1132 and 1134, respectively, so that the first and second ball members 1131 and 1133 are respectively inserted into the first and second seating grooves 1132 and 1134. The first ball member 1131 is partially inserted into the first seating groove 1132, and the second ball member 1133 may be partially inserted into the second seating groove 1134.
[0098] In addition, the housing 1010 may have a third seating groove 1021 into which the first ball member 1131 is partially inserted, and the rotating bracket 1120 may have a fourth seating groove 1121 into which the second ball member 1133 is partially inserted.
[0099] The first seating groove 1132, the second seating groove 1134, the third seating groove 1021, and the fourth seating groove 1121 may be provided in the form of a hemispherical or polygonal (polygonal column or polygonal pyramid) shape to facilitate the rotation of the first ball member 1131 and the second ball member 1133. In order to facilitate the rotation of the first ball member 1131 and the second ball member 1133, the depth of the first to fourth seating grooves 1132, 1134, 1021, and 1121 may be less than the radius of the first ball member 1131 and the second ball member 1133. The first ball member 1131 and the second ball member 1133 are not completely inserted into the first to fourth seating grooves 1132, 1134, 1021, and 1121, but are partially exposed to facilitate the rotation of the rotating plate 1130 and the rotating bracket 1120. In addition, the first seating groove 1132, the second seating groove 1134, the third seating groove 1121 and the fourth seating groove 1121 can be set at positions corresponding to the positions of the corresponding first ball members 1131 and the second ball members 1133, and can be set in a number corresponding to the number of the corresponding first ball members 1131 and the second ball members 1133.
[0100] The first ball member 1131 may roll or slide in the first seating groove 1132 and the third seating groove 1121 , and the second ball member 1133 may roll or slide in the second seating groove 1134 and the fourth seating groove 1121 .
[0101] The first ball member 1131 and the second ball member 1133 may have a structure fixed to at least one of the housing 1010, the rotating plate 1130, and the rotating bracket 1120. For example, the first ball member 1131 may be fixedly disposed in the housing 1010 or the rotating plate 1130, and the second ball member 1133 may be fixedly disposed in the rotating plate 1130 or the rotating bracket 1120. In this case, a seating groove may be provided only in a member opposite to the member in which the first ball member 1131 or the second ball member 1133 is fixedly disposed. In this case, the ball members 1131 and 1133 may support the rotation of the rotating bracket 1120 by sliding in the seating groove.
[0102] When the first ball member 1131 and the second ball member 1133 are fixed to any one of the housing 1010, the rotating plate 1130 and the rotating bracket 1120, the first ball member 1131 and the second ball member 1133 may have a spherical or hemispherical shape (the hemispherical shape is merely an example, and the first ball member 1131 and the second ball member 1133 may be configured to have a protrusion length greater than or less than the hemispherical shape).
[0103] The first ball member 1131 and the second ball member 1133 may be separately manufactured and attached to any one of the housing 1010, the rotating plate 1130, and the rotating bracket 1120. Alternatively, when the housing 1010, the rotating plate 1130, and the rotating bracket 1120 are manufactured, the first ball member 1131 and the second ball member 1133 may be integrally formed.
[0104] A reinforcing plate (not shown) may be installed at a lower portion of the main base plate 1070 for reinforcing strength.
[0105] A closed-loop control method for detecting and feeding back the position of the rotating bracket 1120 may be used to rotate the rotating bracket 1120. Figure 5 As shown, position sensors 1141c and 1143c are included for closed-loop control. Position sensors 1141c and 1143c may be Hall sensors. Position sensors 1141c and 1143c may be disposed inside or outside each of coils 1141b and 1143b, and position sensors 1141c and 1143c may be mounted on the main substrate 1070 on which coils 1141b and 1143b are mounted.
[0106] The main substrate 1070 may include: a gyro sensor (not shown) configured to detect a jitter factor such as jitter of a user; and a driving circuit element (or a driving unit integrated circuit (IC)) configured to provide a driving signal to the plurality of coils 1141b, 1143b, 1145b and 1147b.
[0107] As described above, the light whose path is changed by the reflection module 1100 is incident on the lens module 1200. Therefore, the plurality of stacked lenses provided in the lens module 1200 are aligned in the optical axis direction along the Z axis, which is the direction in which the light is emitted (or emitted) from the reflection module 1100. In addition, the lens module 1200 includes a second driving unit configured to implement auto focus (AF) and zoom functions. In addition, since the lens module 1200 does not include any other components for shake compensation to implement the AF and zoom functions, the relatively light lens module moves in the optical axis direction, thereby minimizing power consumption.
[0108] Figure 8 A shake compensation actuator 1140 is shown according to an embodiment.
[0109] Reference Figure 8 , the shake compensation actuator 1140 may be disposed in the extension member 1160. For example, a first pair of magnets 1141a and 1147a are disposed on the upper and lower surfaces of the extension member 1160, and a second pair of magnets 1143a and 1145a are disposed on opposite sides of the extension member 1160. The first pair of magnets 1141a and 1147a and the second pair of magnets 1143a and 1145a face the first pair of coils 1141b and 1147b and the second pair of coils 1143b and 1145b, respectively.
[0110] Refer to Figure 6 and Figure 7 According to the electromagnetic interaction between the first pair of magnets 1141a and 1147a and the first pair of coils 1141b and 1147b, the reflective member 1110 may rotate around the X-axis relative to the housing 1010. Alternatively, according to the electromagnetic interaction between the first pair of magnets 1141a and 1147a and the first pair of coils 1141b and 1147b, the reflective member 1110 may rotate around an axis (i.e., the X-axis) parallel to the reflective surface 1111 of the reflective member 1110. The reflective member 1110 may rotate around an axis C2 passing through the first ball member 1131 arranged in the X-axis direction.
[0111] According to the electromagnetic interaction between the second pair of magnets 1143a and 1145a and the second pair of coils 1143b and 1145b, the reflective member 1110 may rotate about the Y-axis relative to the housing 1010. Alternatively, according to the electromagnetic interaction between the second pair of magnets 1143a and 1145a and the second pair of coils 1143b and 1145b, the reflective member 1110 may rotate about an axis (e.g., the Y-axis) intersecting a reflective surface 1111 of the reflective member 1110. The reflective member 1110 may rotate about an axis C1 passing through the second ball member 1133 arranged in the Y-axis direction.
[0112] In an embodiment, the driving unit may include at least one position sensor configured to measure the rotation amount of the reflective member 1110. In an embodiment, the position sensor may be disposed at a position corresponding to the magnet. For example, the position sensor 1141c is a first position sensor and may be disposed inside the first coil 1141b. Figure 5 , the position sensor may be fixedly disposed in the housing 1010 or the main substrate 1070. For example, the first position sensor 1141c may be attached to a lower portion of the main substrate 1070 together with the first coil 1141b.
[0113] The description that the position sensor is in a position corresponding to the magnet may be understood to include the case where the position sensor is located within the influence range (ie, magnetic field) of the magnet and the case where the position sensor and the magnet face each other.
[0114] In an embodiment, the driving unit may include a pair of position sensors corresponding to the pair of magnets. By using the pair of position sensors, the rotation amount of the reflective member 1110 may be measured more accurately.
[0115] In an embodiment, first and second position sensors 1141c and 1147c corresponding to the first and second magnets 1141a and 1147a, respectively, may be respectively disposed below and above the extension member 1160. For example, the first and second position sensors 1141c and 1147c may be respectively disposed within the first and second coils 1141b and 1147b.
[0116] In an embodiment, the position sensor 1143c is a third position sensor, and the third position sensor 1143c and the fourth position sensor 1145c corresponding to the third magnet 1143a and the fourth magnet 1145a, respectively, may be respectively disposed on both sides of the extension member 1160. For example, the third position sensor 1143c and the fourth position sensor 1145c may be respectively disposed inside the third coil 1143b and the fourth coil 1145b.
[0117] In an embodiment, the first to fourth position sensors 1141c, 1147c, 1143c, and 1145c may be disposed inside or outside the corresponding first to fourth coils 1141b, 1147b, 1143b, and 1145b. Figure 8 In the illustrated embodiment, the first to fourth position sensors 1141c, 1147c, 1143c, and 1145c are disposed inside the corresponding first to fourth coils 1141b, 1147b, 1143b, and 1145b, but in another embodiment, some or all of the first to fourth position sensors 1141c, 1147c, 1143c, and 1145c may be disposed outside the corresponding coils 1141b, 1147b, 1143b, and 1145b. By disposing the position sensors outside the coils, the Hall coupling phenomenon may be minimized or prevented.
[0118] For example, the first position sensor 1141c and the second position sensor 1147c may be located at points P1 and P7 in the -Z direction relative to the first coil 1141b and the second coil 1147b, respectively. For example, the third position sensor 1143c and the fourth position sensor 1145c may be located at points P3 and P5 in the +Y direction relative to the third coil 1143b and the fourth coil 1145b, respectively. As another example, the first position sensor 1141c may be disposed inside the first coil 1141b, and the second position sensor 1147c may be disposed outside the second coil 1147b. As another example, the first position sensor 1141c and the second position sensor 1147c may be disposed inside the first coil 1141b and the second coil 1147b, respectively, and the third position sensor 1143c and the fourth position sensor 1145c may be disposed outside the third coil 1143b and the fourth coil 1145b, respectively.
[0119] Fig. 9 A shake compensation actuator 1140 - 1 is shown according to an embodiment.
[0120] exist Figure 8 In the embodiment, the magnets and coils are arranged on the side (X direction) of the extension member 1160 and above (+Y direction) and below (-Y direction) the extension member 1160, but in Fig. 9 In an embodiment, the magnets and coils are disposed only on the sides of the extension member 1160 . Fig. 9 The jitter compensation actuator 1140-1 can be replaced by Figure 5 A jitter compensation actuator 1140 is provided.
[0121] Reference Fig. 9, the shake compensation actuator 1140-1 may be disposed in the extension member 1160. For example, a first pair of magnets including a first magnet 1142a and a second magnet 1148a and a second pair of magnets including a third magnet 1144a and a fourth magnet 1146a are disposed on both sides of the extension member 1160, respectively. The first magnet 1142a and the second magnet 1148a are disposed on both sides of the extension member 1160, respectively. The third magnet 1144a and the fourth magnet 1146a are disposed on both sides of the extension member 1160, respectively. In the illustrated embodiment, the first pair of magnets 1142a and 1148a are disposed farther from the reflective member 1110 than the second pair of magnets 1144a and 1146a, but in another embodiment, the positions of the first pair of magnets 1142a and 1148a and the second pair of magnets 1144a and 1146a may be interchanged.
[0122] The first pair of magnets 1142a and 1148a and the second pair of magnets 1144a and 1146a face the first pair of coils including the first coil 1142b and the second coil 1148b and the second pair of coils including the third coil 1144b and the fourth coil 1146b, respectively. That is, the first coil 1142b, the second coil 1148b, the third coil 1144b and the fourth coil 1146b can all be arranged to face the side surface (the surface facing in the X direction) of the extension member 1160.
[0123] Refer to Figure 6 and Figure 7 , the reflective member 1110 may rotate relative to the housing 1010 around the X-axis according to the electromagnetic interaction between the first pair of magnets 1142a and 1148a and the first pair of coils 1142b and 1148b. Alternatively, the reflective member 1110 may rotate around an axis (i.e., the X-axis) parallel to the reflective surface 1111 of the reflective member 1110 according to the electromagnetic interaction between the first pair of magnets 1142a and 1148a and the first pair of coils 1142b and 1148b. The reflective member 1110 may rotate around an axis C2 passing through the first ball member 1131 arranged in the X-axis direction.
[0124] The reflective member 1110 may rotate relative to the housing 1010 around the Y-axis according to the electromagnetic interaction between the second pair of magnets 1144a and 1146a and the second pair of coils 1144b and 1146b. Alternatively, the reflective member 1110 may rotate around an axis (e.g., the Y-axis) intersecting the reflective surface 1111 of the reflective member 1110 according to the electromagnetic interaction between the second pair of magnets 1144a and 1146a and the second pair of coils 1144b and 1146b. The reflective member 1110 may rotate around an axis C1 passing through the second ball member 1133 arranged in the Y-axis direction.
[0125] Reference Fig. 9 In an embodiment, the driving unit may include at least one position sensor configured to measure the rotation amount of the reflective member 1110. For example, the first position sensor 1142c may be disposed inside the first coil 1142b. Figure 5 , the position sensor may be fixedly disposed in the housing 1010 or the main substrate 1070. For example, the first position sensor 1142c may be attached to a lower portion of the main substrate 1070 together with the first coil 1142b.
[0126] In an embodiment, the driving unit may include a pair of position sensors corresponding to the pair of magnets. The use of two position sensors may more accurately measure the rotation amount of the reflective member 1110 .
[0127] In an embodiment, first and second position sensors 1142c and 1148c corresponding to the first pair of magnets 1142a and 1148a may be respectively disposed on both sides of the extension member 1160. For example, the first and second position sensors 1142c and 1148c may be respectively disposed inside the first and second coils 1142b and 1148b.
[0128] In an embodiment, third and fourth position sensors 1144c and 1146c corresponding to the second pair of magnets 1144a and 1146a may be respectively disposed on both sides of the extension member 1160. For example, the third and fourth position sensors 1144c and 1146c may be respectively disposed inside the third and fourth coils 1144b and 1146b.
[0129] In an embodiment, the position sensor may be disposed inside or outside the corresponding coil. Fig. 9 In the illustrated embodiment, the first to fourth position sensors 1142c, 1148c, 1144c, and 1146c are disposed within the corresponding first to fourth coils 1142b, 1148b, 1144b, and 1146b. However, in another embodiment, some or all of the first to fourth position sensors 1142c, 1148c, 1144c, and 1146c may be disposed outside the corresponding coils 1142b, 1148b, 1144b, and 1146b. By disposing the position sensors outside the coils, the Hall coupling phenomenon may be minimized or prevented.
[0130] For example, the first position sensor 1142c and the second position sensor 1148c may be located at points P2 and P8 in the +Y direction relative to the first coil 1142b and the second coil 1148b, respectively. For example, the third position sensor 1144c and the fourth position sensor 1146c may be located at points P4 and P6 in the +Y direction relative to the third coil 1144b and the fourth coil 1146b, respectively. As another example, the first position sensor 1142c may be disposed inside the first coil 1142b, and the second position sensor 1148c may be disposed outside the second coil 1148b. As another example, the first position sensor 1142c and the second position sensor 1148c may be disposed inside the first coil 1142b and the second coil 1148b, respectively, and the third position sensor 1144c and the fourth position sensor 1146c may be disposed outside the third coil 1144b and the fourth coil 1146b, respectively.
[0131] Fig.10 An extension member 1160 is shown according to an embodiment. Fig.11 An extension member 1160 - 1 is shown according to an embodiment. Fig.12 An extension member 1160 - 2 is shown according to an embodiment. Fig.13 An extension member 1160 - 3 is shown according to an embodiment.
[0132] Reference Fig.10 In an embodiment, the extension member 1160 may be formed of a transparent material to allow light reflected from the reflective member 1110 to pass therethrough. For example, the extension member 1160 may be formed of the same material as the reflective member 1110. For example, the extension member 1160 may be formed of transparent plastic or glass.
[0133] Reference Fig.11 In an embodiment, the extension member 1160-1 may include a through portion 1161 through which light reflected from the reflective member 1110 may pass. For example, the extension member 1160-1 may have a rectangular frame shape, and light reflected from the reflective member 1110 may pass through a space surrounded by the rectangular frame. In this case, the extension member 1160-1 may be formed of an opaque material.
[0134] Reference Fig.12 In an embodiment, the extension member 1160-2 may be integrally formed with the rotating bracket 1120 in which the reflective member 1110 is disposed. The extension member 1160-2 may be formed to extend from the rotating bracket 1120 in the optical axis direction. The extension member 1160-2 may include a through portion 1161 through which light reflected from the reflective member 1110 may pass.
[0135] Reference Fig.13 In an embodiment, at least one lens 1162 may be disposed inside the extension member 1160-3. The extension member 1160-3 may include a through portion 1161 through which light passes, and at least one lens 1162 may be disposed inside the through portion 1161. For example, at least one lens 1162 may have a D-cut shape in which the upper and lower portions of a circular lens are cut along a straight line. In other words, at least one lens 1162 may include two opposite edges (side edges) having a curved shape, and two opposite edges (upper edge and lower edge) having a straight line shape.
[0136] Magnets 1141a, 1143a, 1145a, and 1147a for jitter compensation may be mounted on Figures 10 to 13 In the portion of the illustrated extending member 1160, 1160-1, 1160-2 or 1160-3 facing in the directions (Y direction and X direction) perpendicular to the moving direction (Z direction) of light.
[0137] Although not shown, in an embodiment, a lens shape may be additionally provided on one surface of the reflective member 1110. For example, the reflective member 1110 may include a lens surface having a shape similar to that of the lens 1162 and configured to refract reflected light in a portion facing the extension member 1160, 1160-1, 1160-2, or 1160-3.
[0138] Fig.14 is a perspective view of a portable electronic device according to an embodiment.
[0139] Reference Fig.14 , the portable electronic device 2 may be a portable electronic device such as a mobile communication terminal, a smart phone, or a tablet PC equipped with a plurality of camera modules 500 and 1000 .
[0140] A plurality of camera modules 500 and 1000 may be installed in the portable electronic device 2 .
[0141] At least one of the plurality of camera modules 500 and 1000 may be a camera module according to the above reference Figures 2 to 13 A camera module 1000 of the described embodiment.
[0142] That is, in the case of a portable electronic device 2 having dual camera modules, at least one of the two camera modules may be set to be a camera module according to the disclosure herein.
[0143] Through the embodiments disclosed herein, a camera module and a portable electronic device including the camera module can have a simple structure and a small size while realizing functions such as auto focus, zoom, and OIS. In addition, power consumption can be minimized.
[0144] As described above, the camera module disclosed herein can provide excellent shake compensation performance. For example, in a folding camera module that implements shake compensation by tilting a prism, improved shake compensation performance can be provided by precisely driving the prism.
[0145] Although the present disclosure includes specific examples, it will be apparent after understanding the disclosure of the present application that various changes in form and detail may be made to these examples without departing from the spirit and scope of the claims and their equivalents. The examples described in this application are understood in a descriptive sense only, and not for limiting purposes. The description of the features or aspects in each example should be considered to be applicable to similar features or aspects in other examples. If the described techniques are performed in a different order, and / or if the components in the described system, architecture, device or circuit are replaced or supplemented in a different manner and / or by other components or their equivalents, appropriate results can still be achieved. Therefore, the scope of the present disclosure is not limited by specific embodiments, but by the claims and their equivalents, and all variations within the scope of the claims and their equivalents should be understood to be included in the present disclosure.
Claims
1. Camera module, including: A first lens module, disposed in the housing and comprising at least one lens; a reflective member configured to change a path of light toward the first lens module; an extending member configured to move together with the reflecting member and disposed between the reflecting member and the first lens module; An image sensor, arranged on the image side of the first lens module; as well as A shake compensation actuator is disposed in the extending member and configured to tilt the reflective member relative to a first axis and a second axis that are perpendicular to the optical axis of the first lens module.
2. The camera module according to claim 1, wherein: The jitter compensation actuator comprises: a magnet disposed on a surface of the extension member parallel to the optical axis; and The coil faces the magnet.
3. The camera module according to claim 2, wherein: The magnets include a first pair of magnets that are fixedly disposed in the extension member and face each other in a first direction perpendicular to the optical axis, and The coil includes a first pair of coils, which are fixedly disposed in the housing and face the first pair of magnets.
4. The camera module according to claim 3, wherein: The magnets include a second pair of magnets that are fixedly disposed in the extension member and face each other in a second direction that is perpendicular to both the optical axis and the first direction, and Wherein, the coil includes a second pair of coils, and the second pair of coils are respectively fixedly arranged in the shell and face the second pair of magnets.
5. The camera module according to claim 3, further comprising: a pair of position sensors arranged at positions corresponding to the magnets configuring the first pair of magnets, respectively; The reflective member includes a reflective surface configured to change the direction of the light, and the tilt axis of the reflective member is parallel to the reflective surface.
6. The camera module according to claim 1, wherein: The extension member includes a transparent material and allows light reflected from the reflection member to pass through the extension member.
7. The camera module according to claim 1, wherein: The extension member includes a through portion allowing light reflected from the reflection member to pass through the extension member.
8. The camera module according to claim 7, further comprising: A rotating bracket accommodating the reflecting member, Wherein, the extending member extends from the rotating bracket toward the first lens module.
9. The camera module of claim 1, further comprising at least one additional lens disposed in the extension member. 10 . The camera module of claim 1 , further comprising a second lens module spaced apart from the first lens module in a direction of the optical axis. 11 . The camera module of claim 10 , further comprising an actuator configured to independently move the first lens module and the second lens module in a direction of the optical axis.
12. The camera module according to claim 1, further comprising: a ball member disposed between the reflecting member and the housing, Here, the reflecting member is configured to be inclined with respect to the axis perpendicular to the optical axis in a state where the reflecting member is supported in the housing by the ball member in a direction parallel to the optical axis.
13. The camera module according to claim 12, further comprising: a first magnetic member coupled to the reflective member; as well as a second magnetic member fixedly disposed in the housing and facing the first magnetic member; The ball member supports the reflective member in a direction parallel to the optical axis by magnetic attraction generated between the first magnetic member and the second magnetic member.
14. Camera module, including: A lens module, disposed in the housing and comprising at least one lens; a reflective assembly configured to reflect light incident in a first direction toward the lens module; An image sensor, arranged on the image side of the lens module; as well as a jitter compensation actuator configured to tilt the reflective assembly relative to a first axis and a second axis that are perpendicular to both the first direction and the optical axis of the lens module, The shake compensation actuator includes a pair of magnets and a pair of coils, wherein the pair of magnets are fixedly disposed in the reflection component and face each other in the first direction, and the pair of coils are fixedly disposed in the housing and face the pair of magnets.
15. The camera module according to claim 14, wherein: The reflective assembly includes a reflective member configured to reflect the light and a structure fixedly coupled to the reflective member, the pair of magnets being mounted in the structure.
16. Jitter compensation reflection module, including: case; a reflective member disposed in the housing and allowing incident light to change path and exit the reflective member, wherein the reflective member includes a reflective surface configured to change the direction of the incident light toward a direction in which the light with changed path exits the reflective member; an extending member configured to move together with the reflecting member and to extend in a direction in which the path-changed light leaves the reflecting member; and A shake compensation actuator is provided in the extension member and enables the reflection member to be tilted relative to a first axis and a second axis perpendicular to a direction in which the light leaves the reflection member.
17. The jitter compensation reflection module according to claim 16, wherein: The extending member includes an open space allowing the path-changed light to pass therethrough after leaving the reflecting member.
18. The jitter compensation reflection module according to claim 16, wherein: The extension member is formed of a transparent material.
19. The jitter-compensating reflective module of claim 17, further comprising at least one additional lens disposed within the open space.
20. The jitter compensation reflection module according to claim 16, wherein: The shake compensation actuator includes first and second magnets respectively disposed in sides of the reflection member, the first and second magnets being spaced apart from each other in a first direction perpendicular to a direction in which the path-changed light exits the reflection member.
21. The jitter compensation reflection module according to claim 20, wherein: The shake compensation actuator includes third and fourth magnets respectively disposed in sides of the reflection member, the third and fourth magnets being spaced apart from each other in a second direction perpendicular to the first direction and a direction in which the path-changed light exits the reflection member.
22. The jitter compensation reflection module according to claim 20, wherein: The incident light is incident on the reflective member in a direction perpendicular to a direction in which the path-changed light leaves the reflective member.
23. Portable electronic devices, including: Camera module, including: A lens module, disposed in the housing and comprising at least one lens; a reflective member configured to change a path of light incident to the reflective member toward the lens module; an extending member configured to move together with the reflecting member and to extend from the reflecting member to the lens module; an image sensor, disposed on the image side of the lens module; and A shake compensation actuator is disposed in the extending member and configured to tilt the reflective member relative to a first axis and a second axis that are perpendicular to the optical axis of the lens module.
24. The portable electronic device according to claim 23, wherein: An optical axis of the lens module extends perpendicularly to a direction from a front surface of the portable electronic device to a rear surface of the portable electronic device.
25. The portable electronic device according to claim 23, wherein: The extending member includes an open space allowing the light to pass therethrough after passing through the reflecting member.
26. The portable electronic device according to claim 23, wherein: The extension member is formed of a transparent material.
27. The portable electronic device according to claim 23, wherein: The extending member is disposed between the reflecting member and the lens module.
28. The portable electronic device according to claim 23, wherein: The shake compensation actuator is further configured to tilt the reflective member relative to an axis perpendicular to an optical axis of the lens module.
29. The portable electronic device according to claim 23, wherein: The extending member extends toward the lens module.
Citation Information
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