Reflection module and camera module comprising the same

Abstract

A reflection module disclosed in an embodiment of the present invention includes a holder having an inclined bottom surface and first and second guide portions arranged on both sides of the inclined bottom surface, a mirror arranged on the holder, and an adhesive adhering the mirror to the holder, wherein the first and second guide portions extend along both side surfaces of the mirror, the first guide portion includes a plurality of first recesses each facing one side surface of the mirror, the second guide portion includes a plurality of second recesses each facing the other side surface of the mirror, and the adhesive can be arranged in the plurality of first and second recesses, respectively, and adhered to one and the other side surfaces of the mirror.

Description

Technical Field

[0001] The embodiments of the present invention relate to a reflection module and a camera device module. Background Technology

[0002] Users of portable devices require optical devices with high resolution, small size, and a variety of photographic functions. For example, various imaging functions can refer to at least one of optical zoom (magnification / reduction), autofocus (AF), image stabilization, or optical image stabilization (OIS). Traditionally, to achieve these photographic functions, a method has been used that combines several lenses and directly moves the combined lenses. However, when the number of lenses increases in this way, the size of the optical device increases.

[0003] In lens modules, lenses are sequentially fixed in lens holders. This means that once a lens is mounted in the holder, its position is virtually impossible to adjust, resulting in extremely high precision in the mounting process but a relatively low product yield. Therefore, lens modules cannot meet the needs of multiple lenses, and lens development must overcome these structural limitations. Furthermore, in the design and manufacturing process, not only are theoretical optical designs being implemented in actual large-scale production, but research is also underway to develop modules that can provide good product yields.

[0004] Typically, a camera module can be manufactured by comprising multiple lenses, a lens barrel housing the lenses, an image sensor that converts light signals passing through the lenses into electrical signals, a circuit board on which the image sensor is mounted, and a housing for securing the lens barrel to the circuit board. Optical axis alignment between the multiple lenses can be achieved by assembling or attaching the lenses to the lens barrel. Furthermore, when directly moving the lens barrel or holder used for image stabilization, the weight of the lenses themselves and the weight of other components to which they are attached must be considered; therefore, this movement requires a certain level of driving force, which increases power consumption. Summary of the Invention

[0005] Technical issues

[0006] Embodiments of the present invention may provide a camera module and a reflection module in which the assembly of the reflector and the retainer is improved.

[0007] Embodiments of the present invention can provide a camera module and a reflection module with improved adhesion between the reflector and the retainer.

[0008] Embodiments of the present invention may provide a reflective module in which a reflector is bonded to a recess of a guide portion of a retainer by an adhesive, and a camera module having the reflective module.

[0009] Embodiments of the present invention may provide a reflection module for image stabilization and a camera module having the reflection module.

[0010] Technical solution

[0011] A reflective module according to an embodiment of the present invention includes: a retainer having an inclined bottom surface and a first guide portion and a second guide portion disposed on both sides of the inclined bottom surface; a reflector disposed on the retainer; and an adhesive for adhering the reflector to the retainer, wherein the first guide portion and the second guide portion extend along two side surfaces of the reflector, the first guide portion includes a plurality of first recesses, each of the plurality of first recesses facing one side surface of the reflector; the second guide portion includes a plurality of second recesses, each of the plurality of second recesses facing the other side surface of the reflector; and the adhesive may be disposed in the plurality of first recesses and the plurality of second recesses and adhered to one side surface and the other side surface of the reflector, respectively.

[0012] According to an embodiment of the present invention, the upper surfaces of the first guide portion and the second guide portion are higher than the upper surface of the reflector, and the bottoms of the first recess and the second recess may be lower than the upper surface of the reflector and higher than the lower surface of the reflector.

[0013] According to embodiments of the present invention, there may be three or more of each of the first and second recesses. Each of the first and second recesses includes a first surface inclined at its upper portion, a second surface inclined at its lower portion, and a bottom connecting the first and second surfaces, and the angle between the first and second surfaces may be in the range of 80 degrees to 90 degrees. The interior angle of each of the first to second recesses may be in the range of 80 degrees to 90 degrees.

[0014] According to an embodiment of the invention, the first surface may be tilted within ±10 degrees relative to a first axis orthogonal to the optical axis, and the second surface may be tilted 90 degrees or less relative to the first axis. Each of the first and second recesses may have a polygonal shape comprising a triangle.

[0015] According to an embodiment of the present invention, the reflective module includes a plurality of spacers at each corner of the bottom surface of the retainer for separating the lower surface of the reflector from the bottom surface. The retainer may include stop protrusions on both sides of the lower end of the reflector to prevent movement of the reflector.

[0016] According to an embodiment of the present invention, the reflective module may include: a first housing to which a retainer is coupled; a retainer guide portion coupled to the rear side of the retainer and guiding rotation of the retainer; a rear cover coupled to the rear side of the retainer guide portion; and a cover having an opening in an area on the upper portion of the first housing opposite the upper surface of the reflector. Each of the two side surfaces and the lower portion of the first housing and the retainer includes a plurality of drive portions having coils and magnets facing each other, and the retainer guide portion may include a plurality of first protrusions and a plurality of second protrusions coupled to a groove disposed on the rear side of the retainer and a groove disposed on the front side of the rear cover.

[0017] The camera device module according to an embodiment of the present invention may include a lens module and an image sensor module aligned in the optical axis direction of the reflection module.

[0018] Beneficial effects

[0019] In embodiments of the present invention, since the reflector is adhered to the two sidewalls of the retainer by an adhesive, problems such as reflector separation or adhesive leakage can be suppressed. Furthermore, the adhesion of the reflector from its side surface improves the flatness of the reflector. According to embodiments of the present invention, the optical reliability of the reflective module with image stabilization and the camera module having the reflective module can be improved. Furthermore, the reliability of the camera module and the portable terminal having the camera module can be improved. Attached Figure Description

[0020] Figure 1 This is a perspective view of a reflection module according to an embodiment of the present invention.

[0021] Figure 2 yes Figure 1 An exploded perspective view of the reflection module.

[0022] Figure 3 It is shown Figure 2 A plan view of the reflector and recess in the reflective module.

[0023] Figure 4 It is shown Figure 2 A plan view of the bottom of the retainer.

[0024] Figure 5 It is shown Figure 2 A plan view of the bonding between the reflector and the recess in the reflective module.

[0025] Figure 6 It is viewed from the other side. Figure 5 Perspective view of the retainer.

[0026] Figure 7 It is one of them Figure 5 An example of a side section view showing the retainer and reflector joined by adhesive.

[0027] Figure 8 It is one of them Figure 5 Another example of a cross-sectional view showing the retainer and reflector joined by adhesive.

[0028] Figure 9 It is shown Figure 5 A view of the state of the retainer and reflector in the reflective module after being subjected to an external impact, which are joined by adhesive.

[0029] Figure 10 It has Figures 1 to 3 An example of a cross-sectional side view of the camera device module of the reflection module.

[0030] Figure 11 It has Figure 10 An example of a portable electronic device with a camera module. Detailed Implementation

[0031] Preferred embodiments of the invention will be described in detail below with reference to the accompanying drawings. The inventive concept is not limited to the embodiments described herein, but can be implemented in various other forms, and one or more components may be selectively combined and substituted for use within the scope of the inventive concept. Furthermore, unless specifically defined and explicitly described, the terminology used in the embodiments of the invention (including technical and scientific terms) may be interpreted in a meaning that is generally understood by one of ordinary skill in the art to which this invention pertains, and commonly used terms (e.g., terms defined in dictionaries) should be interpretable in light of the context of the relevant art. Moreover, the terminology used in the embodiments of the invention is for the purpose of explaining the embodiments and is not intended to limit the invention. In this specification, unless specifically stated otherwise in the phrase, the singular form may also include the plural form, and in the case of referring to at least one (or one or more) of A and / or B, C, it may include one or more of all combinations that can be combined with A, B, and C. In describing components of embodiments of the invention, terms such as first, second, A, B, (a), and (b) may be used. Such terms are used only to distinguish components from other components, and not to determine the nature, order, or process of the corresponding constituent elements by the terms. Furthermore, when describing a component as "connected," "coupled," or "joined" to another component, this description can include not only direct connection, coupling, or joining to the other component, but also "connected," "coupled," or "joined" through additional components between the component and the other component. Additionally, when described as being formed or arranged "above" or "below" each component, this description includes not only cases where the two components are in direct contact with each other, but also cases where one or more other components are formed or arranged between the two components. Moreover, when expressed as "above" or "below," it can refer to both a downward and upward direction relative to a single element.

[0032] A camera device comprising multiple lenses is mounted on a miniaturized mobile device such as a mobile terminal or vehicle. This camera device achieves optical zoom (magnification / reduction), autofocus (AF), and / or optical image stabilization (OIS) or image stabilization by adjusting the distance between the multiple lenses. Furthermore, some embodiments described below can be combined with each other unless specifically stated otherwise. Additionally, unless otherwise stated, descriptions of other embodiments may be applied to any missing portions of the description of any of some embodiments.

[0033] Figure 1 This is a perspective view of a reflection module according to an embodiment of the present invention. Figure 2 yes Figure 1 An exploded perspective view of the reflection module. Figure 3 It is shown Figure 2 A plan view of the reflector and recess in the reflective module. Figure 4 It is shown Figure 2 Plan view of the bottom of the retainer. Figure 5 It is shown Figure 2 A plan view of the bonding between the reflector and the recess in the reflective module. Figure 6 yes Figure 5 Perspective view of the retainer Figure 7 It is one of them Figure 5 An example of a side section view showing the retainer and reflector joined by adhesive, and Figure 8 It is one of them Figure 5 An example of a side section view showing the retainer and reflector joined by adhesive.

[0034] Reference Figures 1 to 8 The reflection module 100 according to an embodiment of the present invention can be arranged in the camera device module of a portable electronic device or mobile device. The reflection module 100 is located on the optical axis Z of the lens of the camera device module. Figure 10 The incident light is reflected in the direction of the image sensor. Since the multiple lenses of the camera module are arranged perpendicular to the thickness direction of the portable electronic device, the portable device equipped with the camera module can be miniaturized while still having AF, zoom, and OIS functions. Furthermore, the camera module may include: an internal lens holder in which multiple lenses are arranged between the reflection module 100 and the image sensor; and an external lens holder having at least one lens between the reflection module 100 and the object. In the following description, for convenience, the reflection module 100 will be described primarily, and the reflection module 100 may include image stabilization (OIS) functionality.

[0035] Reference Figures 1 to 5 According to an embodiment of the present invention, a reflective module 100 includes: a first housing 103; a retainer 120 coupled to an internal portion of the first housing 103; a reflector 110 coupled to an internal portion of the retainer 120; a cover 101 having an opening and covering an upper and side portion of the first housing 103; drive portions M10, M20, M30 disposed on two side portions and / or a lower portion of the first housing 103 and the retainer 120; a substrate 102 disposed on two side portions and a lower portion of the first housing 103 and electrically connected to the drive portions M10, M20, M30; a retainer guide portion 193 coupled to a rear side of the retainer 120; and a rear cover 191 coupled to a rear side of the retainer guide portion 193.

[0036] In the first housing 103, the retainer 120 can be coupled to the opening 171 and in the Z-axis direction ( Figure 10 An internal portion 174 opens to the front. Holes to which components of the first and second drive portions M10 and M20 are coupled may be formed on both side surfaces of the first housing 103. Coupling protrusions 11 of coupling holes 12 coupled to the substrate 102 may be formed on both side surfaces of the first housing 103. The retainer 120 may have an opening portion 175 having an open front side and an open upper side, and the retainer may include an inclined bottom surface 121. The inclined bottom surface 121 may be inclined in the range of 40 to 50 degrees, for example, at an angle of 45 degrees. The retainer 120 has sidewalls 123 and 123A arranged on its two sides, and a reflector 110 may be inserted and coupled between the inclined bottom surface 121 and the sidewalls 123 and 123A. The reflector 110 may be coupled to the bottom surface 121 of the retainer 120. The reflector 110 can be a mirror with a thickness of 0.5 mm or less, for example, a mirror with a thickness of 0.3 mm or less. The reflector 110 is made of glass and can have a rectangular plate shape. The reflector 110 can perform incident and reflection through an exposed or object-facing surface. The reflected light can propagate towards the lens module in the optical axis direction. The reflector 110 can be tilted within a range of 40 to 50 degrees, for example, tilted at an angle of 45 degrees.

[0037] like Figure 4 As shown, a plurality of spacers P1 can be arranged on the bottom surface 121 of the retainer 120, and the plurality of spacers P1 can space the lower surface of the reflector 110 from the bottom surface 121. The spacers P1 can be arranged at each corner of the bottom surface 121 and can be joined to the lower surface of the reflector 110. As another example, the lower surface of the reflector 110 can be joined to the bottom surface 121 in an area that does not affect the reflection of light.

[0038] like Figure 3 As shown, the retainer 120 may include stop protrusions ST1 and ST2, and the stop protrusions ST1 and ST2 may be arranged on both sides of the front side of the retainer 120 or the lower end of the exit surface S2 of the reflector 110. Each of the stop protrusions ST1 and ST2 may overlap the reflector 110 by 0.3 mm or less, for example, within the range of 0.15 mm to 0.3 mm. When the stop protrusions ST1 and ST2 are smaller than the above range, it is difficult to support the reflector 110; while when the stop protrusions are larger than the above range, there is a problem of reduced area of ​​the front opening portions 173 and 175 of the retainer 120. Figure 7As shown, the stop protrusions ST1 and ST2 can be tilted at an angle corresponding to the tilt angle of the outer side of the reflector 110, and the outer side of the reflector 110 can be in close contact with the stop protrusions ST1 and ST2. The outer wall of the retainer 120 can protrude from the outer side of the upper end of the bottom surface 121 to be higher than the upper surface of the reflector 110. The retainer 120 can be made of plastic or polymer material, such as liquid crystal polymer (LCP) material.

[0039] like Figure 2 and Figure 8 As shown, the retainer guide portion 193 has a polygonal plate shape and can be coupled between the rear cover 191 and the retainer 120. A first protrusion 91 of the retainer guide portion 193 can be coupled to a recess in the retainer 120, and a second protrusion 92 can be coupled to a recess 92A in the rear cover 191. The retainer guide portion 193 is arranged at the rear side of the retainer 120, and the first protrusion 91 of the retainer guide portion 193 is coupled to the rear recess of the retainer 120 to guide rotation based on the first axis X direction of the retainer 120 in the second axis Y direction. At the rear side of the retainer guide portion 193, the second protrusion 92 is coupled to the rear cover 191 in the form of a recess / protrusion, and the second protrusion 92 guides the rotation of the retainer guide portion 193 and the retainer 120 relative to the second axis Y in the first axis X direction. For example, the first protrusion 91 is spaced apart from the center of the front surface (inner surface) of the retainer guide portion 193 in the horizontal left / right direction (X-axis), and the second protrusion 92 is spaced apart from the center of the rear surface (outer surface) of the retainer guide portion 193 in the vertical up / down direction (Y-axis). Therefore, the first protrusion 91 and the second protrusion 92 can guide the retainer 120 to move in the up / down / left / right directions. A plurality of recesses 92A are arranged on the inner surface of the rear cover 191, that is, on the surface opposite the retainer guide portion 193, and the recesses 92A can be arranged above and below the centerline in the vertical direction (Y-axis), respectively. The recesses, as well as the first and second protrusions 91 and 92, can have a hemispherical shape.

[0040] The cover 101 may have an opening 171 facing the upper surface of the reflector 110 and side portions that curve toward both sides of the first housing 103. The cover 101 may be made of metal or plastic. The substrate 102 extends from the bottom of the first housing 103 toward both sides of the first housing 103, that is, it may extend between the sides of the first housing 103 and the sides of the cover 101, respectively. The substrate 102 extends to the two side surfaces and the lower surface of the first housing 103 and may be electrically connected to the coils and position sensors 51 of each drive section M10, M20, M30. The drive sections M10, M20, M30 may each include a VCM actuator or a piezoelectric element.

[0041] like Figure 2 and Figure 6 As shown, a first drive portion M10 and a second drive portion M20 are arranged on opposite sides of a first housing 103 and a retainer 120. The first drive portion M10 may include a mover M11 arranged on a first side of the retainer 120 and a stator M12 arranged on the first housing 103 opposite to the first side. The second drive portion M20 may include a mover M21 arranged on a second side of the retainer 120 and a stator M22 arranged on the first housing 103 opposite to the second side. The movers M11 and M21 of the first and second drive portions M10 and M20 may include magnets, and the stators M12 and M22 may include coils. When electricity is applied to the coils of the first and second drive portions M10 and M20, a driving force is generated in the direction of a first axis X, and the retainer 120 rotates in the direction of a second axis Y. Here, the stators M12 and M22 of the first drive portion and the second drive portion M10 and M20 are electrically connected to each side of the substrate 102, and the position sensor 51 can be arranged within the stators M12 and M22 and connected to the substrate 102.

[0042] like Figure 7 and Figure 8 As shown, the third drive section M30 is arranged below the first housing 103 and the retainer 120, and the third drive section M30 may include a mover M31 below the retainer 120 and a stator M32 at the bottom of the first housing 103. The mover M31 of the third drive section M30 may include a magnet, and the stator M32 may include a coil. When electricity is applied to the coil of the third drive section M30, a driving force is generated in the direction of the second axis Y, and the retainer 120 rotates in the direction of the second axis Y based on the first axis X. A position sensor 51 may be arranged within the coil of the third drive section M30. The position sensor 51 arranged in the first to third drive sections M10, M20, M30 may be a Hall sensor for closed-loop control, which detects and feeds back the position of the retainer 120 when the retainer 120 rotates.

[0043] like Figure 2 and Figure 8As shown, a first mover M41 is disposed on the rear side of the retainer 120, and a second mover M42 is disposed on the rear side of the retainer guide portion 193. Both the first mover and the second mover M41, M42 can be magnets, or the first mover M41 can be a magnet and the second mover M42 can be a coil. The first mover and the second mover M41, M42 exert repulsive or attractive forces on each other, and the retainer 120 can be supported by the driving force of the first drive portion to the third drive portion M10, M20, M30 in contact with the first housing 103 to rotate about the first axis X and / or the second axis Y.

[0044] At the same time, such as Figures 3 to 8 As shown, a combination of retainer 120 and reflector 110 is described. The inner sides of the two sidewalls 123, 123A of retainer 120 may include guide portions 131, 132 along the two side surfaces of reflector 110. The inner sides of guide portions 131, 132 may face the two side surfaces of reflector 110, respectively. Figure 7 As shown, the height or thickness (> T2) of the guide portions 131, 132 can be made to be thicker or higher than the thickness T1 of the reflector 110 based on the bottom surface 121. Figure 3 As shown, the guide portions 131 and 132 can be spaced apart from the center of the reflector 110 by a distance D1, which is equal to or greater than 50% of the length of one side in the X direction of the first axis.

[0045] like Figure 6 As shown, the lengths of the guide portions 131 and 132 can be shorter than the length of the upper surface of the reflector 110. The distance between the first guide portion 131 and the second guide portion 132 can be greater than the width of the reflector 110. The width of the reflector 110 is its length in the direction perpendicular to the longitudinal direction.

[0046] The two side surfaces of the reflector 110 can be adhered to the guide portions 131, 132 by adhesive 161. The guide portions 131, 132 may have a plurality of recesses 135, 136 or grooves for receiving the adhesive 161, these recesses or grooves being arranged in areas corresponding to the side surfaces of the reflector 110. Each of the first and second guide portions 131, 132 may have a width of 0.3 mm or greater, for example, a width of 0.3 mm to 0.6 mm or 0.3 mm to 0.5 mm. The width of each of the first and second guide portions 131, 132 is the length extending outward from each side surface of the reflector 110. A plurality of recesses 135, 136 spaced apart from each other are arranged in each of the first and second guide portions 131, 132, and three or more of the plurality of recesses 135, 136 may be arranged in each of the first and second guide portions 131, 132. A plurality of first recesses 135 may be arranged in the first guide portion 131 and along one side surface of the reflector 110, and a plurality of second recesses 136 may be arranged in the second guide portion 132 and along the other side surface of the reflector 110.

[0047] like Figure 7 and Figure 8 As shown, the depth T2 of the first and second recesses 135, 136 is the depth from the upper surface of the first and second guide portions 131, 132 to the bottom, and the depth T2 of the first and second recesses can be formed in the range of 0.4 mm ± 0.2 mm. The width W1 of the first and second recesses 135, 136 can be greater than the depth T2, and can be greater than or equal to 0.6 mm, for example, in the range of 0.6 mm to 2 mm or in the range of 0.7 mm to 1 mm. The distance W2 between the upper surfaces of the first and second recesses 135, 136 can be greater than the depth T2, and can be greater than or equal to 0.5 mm, for example, in the range of 0.5 mm to 2 mm or in the range of 0.6 mm to 1 mm. The bonding area between the adhesive 161 filling the first and second recesses 135, 136 and the reflector 110 can be ensured by the depth T2 and width W1 of the first and second recesses 135, 136, and the number of the first and second recesses 135, 136 can be three or more within the length of the reflector 110 depending on the distance W2 and the width W1.

[0048] The height of the upper surfaces of the guide portions 131 and 132 may be higher than the height of the upper surface of the reflector 110, and the bottom of the recesses 135 and 136 may be higher than the lower surface of the reflector 110 and lower than the upper surface of the reflector. Each of the first and second recesses 135 and 136 has an interior angle Q1 of 90 degrees or less, for example, an interior angle in the range of 80 to 90 degrees, and when the liquid adhesive 161 is applied, the liquid adhesive can prevent flow in the downward direction and can be provided in a wider recess width.

[0049] The first and second recesses 135, 136 may include an inclined first surface 31, a second surface 33, and a bottom 32 between the first and second surfaces 31 and 33. The first surface 31 may be inclined at the same angle as the second axis Y, or may be arranged within ±10 degrees relative to the second axis Y. The second surface 33 faces the first surface 31 and is inclined at the same angle as the optical axis Z, or arranged within -10 degrees relative to the optical axis Z (e.g., 80 to 90 degrees relative to the Y-axis). When the second surface 33 is outside the range of the optical axis Z, the adhesive 161 may flow downward. That is, the angle Q3 between the straight line extending along the first surface 31 and the straight line on the upper surface of the extended guide portions 131, 132 or the straight line on the upper surface of the extended reflector 110 may be within the range of 45 degrees ±5 degrees. That is, the angle Q2 between the straight line extending along the second surface 33 and the straight line on the upper surface of the extended guide portions 131, 132 or the straight line on the upper surface of the extended reflector 110 can be 45 degrees or less, for example, in the range of 40 degrees to 45 degrees. The bottom 32 on the first and second recesses 135, 136 is connected between the first surface 31 and the second surface 33, and can be configured as an inclined flat surface or formed as not having a flat surface. The side sections of the first and second recesses 135, 136 can have a triangular or polygonal shape.

[0050] The overlapping region D3 of the first and second recesses 135, 136 with the reflector 110 within depth T2 can be equal to or smaller than the non-overlapping region D2. Therefore, when adhesive 161 is applied to each of the first and second recesses 135, 136, adhesive 161 can adhere to different regions on the two side surfaces of the reflector 110. This prevents problems such as movement or separation of the reflector 110. Adhesive 161 can extend onto a portion of the upper or lower surface of the reflector 110. Figure 9 As shown, a portion 160A of the adhesive 161 may extend to a portion of the upper or lower surface of the reflector 110.

[0051] The adhesive 161 may fill the same plane as the upper surfaces of the first and second guide portions 131, 132, or may be arranged above or below the upper surfaces of the first and second guide portions 131, 132. According to embodiments of the invention, the adhesive 161 may include a UV adhesive or a thermosetting adhesive. As another example, the adhesive 161 may include a first adhesive disposed in the recesses 135, 136 and a second adhesive disposed on the first adhesive. The first adhesive may be a UV adhesive with excellent adhesion to glass, and the second adhesive may be a thermosetting adhesive with excellent adhesion to a plastic material, the same material as the retainer. As another example, the second adhesive may be bonded to the upper surfaces of the guide portions 131, 132 and the upper end of the side surface of the reflector 110.

[0052] like Figure 10 As shown, the imaging device module 400 according to an embodiment of the present invention may include a reflection module 100, a lens module 200, and an image sensor module 300. The lens module 200 and the image sensor module 300 may be aligned along the optical axis of the reflection module 100. Multiple lenses may be aligned in lens holders within the lens module 200, and the image sensor 310 may be attached to the image sensor module 300 on the main substrate 320. The multiple lenses may be arranged in one lens holder, or may be separated in at least two lens holders. Furthermore, the lens module 200 may include, but is not limited to, actuators with AF and / or OIS functions surrounding the lens holders. By arranging the optical axes of the lenses of the lens module 200 in a direction perpendicular to the thickness of the portable electronic device, a high-resolution imaging device module can be provided without increasing the thickness of the portable electronic device.

[0053] Reference Figure 11The portable electronic device 1000 according to an embodiment of the present invention can be a portable electronic device, such as a mobile communication terminal, smartphone, or tablet PC equipped with a camera module 400. As another example, the portable electronic device can be a mobile device, such as a vehicle. The portable electronic device 1000 is equipped with a camera module 400 for photographing a subject. The camera module 400 includes a plurality of lenses. In an embodiment of the present invention, the camera module 400 is arranged such that the optical axes (Z-axis) of the plurality of lenses are perpendicular to the thickness direction (Y-axis direction, from the front surface to the rear surface of the portable electronic device or the opposite direction) of the portable electronic device 1000. For example, the optical axes (Z-axis) of the plurality of lenses disposed in the camera module 400 can be formed in the width or length direction of the portable electronic device 1000. Therefore, even if the camera module 400 has functions such as autofocus (AF), zoom, and optical image stabilization (OIS), the thickness of the portable electronic device 1000 will not increase.

[0054] Therefore, miniaturization of the portable electronic device 1000 is feasible. The camera module 400 according to an embodiment of the present invention may include at least one of AF, zoom, and OIS functions. When the camera module 400 has AF, zoom, and OIS functions, its size increases compared to a conventional camera module. When the size of the camera module 400 increases, the portable electronic device 1000 on which it is mounted is also affected, thus limiting the miniaturization of the portable electronic device 1000. For example, the camera module should form a long lens group for the zoom function, and when the optical axis (Z-axis) of the lens group is formed in the thickness direction of the portable electronic device, the thickness of the portable electronic device also increases according to the length of the lens group.

[0055] When the thickness of the portable electronic device is not increased, the length of the lens group cannot be made long enough, and the zoom performance is weakened. Furthermore, to achieve AF and OIS functions, an actuator for moving the lens group in the direction of the optical axis or perpendicular to the optical axis must be installed. The optical axis (Z-axis) of the lens group is formed in the thickness direction of the portable electronic device. In this case, the actuator for moving the lens group must also be installed in the thickness direction of the portable electronic device. Therefore, the thickness of the portable electronic device increases. However, since the imaging device module 400 according to an embodiment of the present invention is arranged such that the optical axis (Z-axis) of the plurality of lenses is perpendicular to the thickness direction of the portable electronic device 1000, the portable electronic device 1000 can be miniaturized while having AF, zoom, and OIS functions.

[0056] The features, structures, effects, etc., described in the above embodiments are included in at least one embodiment of the present invention, and are not necessarily limited to one embodiment. Furthermore, the features, structures, and effects shown in each embodiment can be combined or modified by those skilled in the art relative to other embodiments. Therefore, anything related to these combinations and variations should be interpreted as being included within the scope of the present invention. Although described based on embodiments, these are merely examples, and the present invention is not limited. It will be apparent to those skilled in the art that various modifications and applications not shown above are possible without departing from the essential characteristics of the embodiments. For example, each component specifically shown in the embodiments can be modified and implemented. And the differences associated with these modifications and applications should be interpreted as being included within the scope of the present invention as defined in the appended claims.

Claims

1. A reflection module, comprising: A retainer having an inclined bottom surface and a first guide portion and a second guide portion disposed on both sides of the inclined bottom surface; A reflector arranged on the retainer; as well as The adhesive used to attach the reflector to the retainer. The first guide portion and the second guide portion extend along the two side surfaces of the reflector. The first guiding portion includes a plurality of first recesses that face one side surface of the reflector and are spaced apart from each other. The second guiding portion includes a plurality of second recesses that face the other side surface of the reflector and are spaced apart from each other. The adhesive is disposed in the plurality of first recesses and the plurality of second recesses respectively, and the adhesive is adhered to one side surface and the other side surface of the reflector. The reflector is coupled to the inclined bottom surface of the retainer. The adhesive is respectively adhered to different areas on one side surface of the reflector and the other side surface of the reflector. A portion of the adhesive extends to a portion of the upper or lower surface of the reflector. The reflector has the shape of a rectangular plate. The two side surfaces of the reflector are disposed between the two side walls of the retainer, wherein the two side walls of the retainer include a first guide portion and a second guide portion along the two side surfaces of the reflector. The height or thickness of each of the first guide portion and the second guide portion is such that the bottom surface is thicker or higher than the thickness of the reflector.

2. The reflection module according to claim 1, wherein, The upper surfaces of the first guide portion and the second guide portion are higher than the upper surface of the reflector, and the bottoms of the first recess and the second recess are lower than the upper surface of the reflector and higher than the lower surface of the reflector.

3. The reflection module according to claim 2, wherein, The number of the first recess and the second recess is three or more.

4. The reflection module according to claim 3, wherein, Each of the first recess and the second recess includes: a first surface inclined at its upper portion; a second surface inclined at its lower portion; and a bottom connecting the first surface and the second surface. The angle between the first surface and the second surface is in the range of 80 degrees to 90 degrees.

5. The reflection module according to claim 3, wherein, The interior angle of each of the first to the second recesses is in the range of 80 to 90 degrees.

6. The reflection module according to claim 4, wherein, The first surface is inclined within ±10 degrees relative to a first axis orthogonal to the optical axis, and The second surface is inclined at an angle of 90 degrees or less relative to the first axis.

7. The reflection module according to claim 5 or 6, wherein, Each of the first recess and the second recess includes a polygonal shape containing triangles.

8. The reflective module according to any one of claims 3 to 6, further comprising a plurality of spacers at each corner of the bottom surface of the retainer for separating the lower surface of the reflector from the bottom surface.

9. The reflection module according to any one of claims 1 to 6, wherein, The retainer includes stop protrusions on both sides of the lower end of the reflector to prevent the reflector from moving.

10. The reflective module according to any one of claims 1 to 6, comprising a first housing, wherein the retainer is coupled to an internal portion of the first housing; A retainer guide portion, which is coupled to the rear side of the retainer and guides the rotation of the retainer; Rear cover, which is coupled to the rear side of the retainer guide portion; as well as The cover has an opening in the upper portion of the first housing, in a region opposite the upper surface of the reflector.

11. The reflection module according to claim 10, wherein, Each of the two side surfaces and the lower portion of the first housing and the retainer includes a plurality of drive portions having coils and magnets facing each other. The retainer guide portion includes a plurality of first protrusions and a plurality of second protrusions, which are coupled to a groove arranged on the rear side of the retainer and a groove arranged on the front side of the rear cover.

12. A camera device module comprising a lens module and an image sensor module aligned in the optical axis direction of the reflective module according to claim 11.

Images