Reflection member, reflection module, and portable electronic device

Abstract

The utility model relates to a reflective member. The reflective member includes: an incident surface on which light is incident; a reflective surface from which the incident light is reflected; an exit surface from which the reflected light is emitted; and a light blocking portion extending along an edge of at least one of the incident surface and the exit surface, in which the light blocking portion includes a wavy shape formed by a plurality of convex portions and a plurality of concave portions, and the wavy shape has a plurality of wavelengths, each of the plurality of wavelengths having a size that varies in an extending direction of the light blocking portion. The disclosure also relates to a reflective module and a portable electronic device.

Description

[0001] Cross Reference to Related Applications

[0002] This application claims the benefit of priority to Korean Patent Application No. 10-2023-0185996, filed December 19, 2023, in the Korean Intellectual Property Office, the disclosure of which is incorporated by reference herein in its entirety for all purposes. TECHNICAL FIELD

[0003] The following description relates to a reflection member and a reflection module including the same. BACKGROUND

[0004] Camera modules are implemented in portable electronic devices such as, but not limited to, smart phones. The thickness of the portable electronic devices is reduced due to market demand, and thus, it is desirable for the camera modules to have a miniaturized form factor.

[0005] In addition to the demand for miniaturization of the camera modules, there is also a demand to improve the performance of the camera modules. Accordingly, functions such as auto focus (AF) and optical image stabilization (OIS) are added to the camera modules. Thus, there is a limit to how much the size of the camera modules can be reduced.

[0006] In other words, despite the demand for miniaturization of the camera modules, it is difficult to reduce the size of the camera modules, and thus, there is a limit in reducing the thickness of the portable electronic devices.

[0007] To address this issue, camera modules including a plurality of lenses arranged in a length direction or a width direction of the portable electronic devices rather than in a thickness direction and a reflection member that changes the path of light have been proposed.

[0008] Since these camera modules have a different structure from typical camera modules, for example, have a longer total track length and a reflection member, the image quality thereof can be deteriorated due to flare phenomena that do not occur in typical camera modules. SUMMARY

[0009] The provision of this summary is to introduce a selection of concepts in a simplified form as a prelude to the more detailed description that is to follow in the DETAILED DESCRIPTION section. It is not intended to be a comprehensive disclosure of the subject matter claimed, nor is it intended to be taken as restricting the claimed subject matter to the scope indicated. The summary is not intended to be used to limit or define the claimed subject matter.

[0010] In general aspects, a reflective member includes: an incident surface on which light is incident; a reflection surface from which the incident light is reflected; an exit surface from which the reflected light exits; and a light-blocking portion extending along an edge of at least one of the incident surface and the exit surface, wherein the light-blocking portion includes a wave shape formed by a plurality of convex portions and a plurality of concave portions, and wherein the wave shape has a plurality of wavelengths each having a size varying in an extension direction of the light-blocking portion.

[0011] The sizes of the plurality of wavelengths can be different from each other.

[0012] The convex portions and the concave portions can be repeatedly arranged to form the wave shape.

[0013] The light-blocking portion can be formed of an opaque material.

[0014] The reflective member can further include a virtual first boundary line corresponding to an area on which light is incident on the incident surface, and a virtual second boundary line connecting end portions of the plurality of convex portions, wherein the first boundary line and the second boundary line can be arranged parallel to each other.

[0015] The reflective member can further include a virtual third boundary line connecting end portions of the plurality of concave portions, wherein the third boundary line can be arranged outside the incident surface compared to the first boundary line.

[0016] The amplitudes of the plurality of wavelengths can be constant.

[0017] The reflective member can further include a virtual first boundary line corresponding to an area on which light is incident on the incident surface, wherein the first boundary line can be arranged along half points of the amplitudes of the plurality of wavelengths.

[0018] The edge of the incident surface can include a first edge arranged in a length direction of the incident surface and a second edge facing the first edge, and a portion of the light-blocking portion extending along the first edge can be curved toward an inside of the incident surface.

[0019] A portion of the light-blocking portion extending along the second edge can be curved toward the inside of the incident surface.

[0020] The wavelength of the light-blocking portion can be 0.3 mm or more and 2 mm or less.

[0021] In general aspect, a reflection module includes a reflection member including an incident surface, a reflection surface, and an exit surface, and a bracket on which the reflection member is mounted, wherein a light blocking portion can be provided on at least one of the incident surface and the exit surface of the reflection member, wherein the light blocking portion can be configured to block a portion of at least one of the incident surface and the exit surface, wherein the light blocking portion includes a wave shape formed by a plurality of convex portions and a plurality of concave portions, and wherein the wave shape can have a plurality of wavelengths having a size varying in an extension direction of the light blocking portion.

[0022] The sizes of the plurality of wavelengths can be different from each other.

[0023] The convex portions and the concave portions can be repeatedly provided to form the wave shape.

[0024] The reflection member can include a virtual first boundary line corresponding to an area on which light is incident to the incident surface, and a virtual second boundary line connecting end portions of the plurality of convex portions, wherein the first boundary line and the second boundary line can be provided to be parallel to each other.

[0025] The amplitudes of the plurality of wavelengths can be constant.

[0026] Other features and aspects will be apparent from the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 A perspective view of an exemplary portable electronic device equipped with a camera module according to one or more embodiments is shown.

[0028] Figure 2 A schematic perspective view of an exemplary camera module according to one or more embodiments is shown.

[0029] Figure 3 A schematic exploded perspective view of an exemplary camera module according to one or more embodiments is shown.

[0030] Figure 4 A plan view of a lens disposed in an exemplary camera module according to one or more embodiments is shown.

[0031] Figure 5A A schematic exploded perspective view of a reflection module according to one or more embodiments is shown.

[0032] Figure 5B A schematic perspective view of a reflection member according to one or more embodiments is shown.

[0033] Figure 6 A schematic assembled perspective view of a reflection module according to one or more embodiments is shown.

[0034] Figure 7 A schematic front view of a reflective module according to one or more embodiments is shown.

[0035] Figure 8 A light blocking device according to one or more embodiments is shown.

[0036] Figure 9 Figure 10 and Figure 11 are diagrams showing a light blocking device according to one or more embodiments.

[0037] Throughout the drawings and detailed description, unless otherwise described, like reference characters refer to like elements. The drawings can not be to scale and the relative dimensions, proportions, and descriptions of the elements in the drawings can be exaggerated for purpose of clarity, illustration, and convenience. DETAILED DESCRIPTION

[0038] The following detailed description is presented to aid the reader in gaining a comprehensive understanding of the methods, apparatuses, and / or systems described herein. However, various changes, modifications, and equivalents can be used, and the disclosure herein has been presented to enable any person skilled in the art to make or use the methods, apparatuses, and / or systems described herein, as well as alterations, modifications, and equivalents of these methods, apparatuses, and / or systems. For example, the order in which the operations are described and / or the order in which the operations are described in this document can be altered, except as otherwise described herein. Additionally, the sequence and / or order of operations described herein can be changed unless as otherwise described herein, and / or operations described herein can be performed in parallel, except as otherwise described herein. Furthermore, features described herein can be omitted, as known to one of ordinary skill in the art. Additionally, features described herein can be combined, except as otherwise described herein.

[0039] Although expressions such as “first,” “second,” and “third” or A, B, (a), (b), etc. can be used in this document to describe various components, elements, regions, layers, or parts, these components, elements, regions, layers, or parts are not limited by these expressions. Each of these expressions is not used to define importance, sequence, or order of, for example, the corresponding components, elements, regions, layers, or parts, but is used only to distinguish the corresponding components, elements, regions, layers, or parts from other components, elements, regions, layers, or parts. Therefore, the first component, first element, first region, first layer, or first part mentioned in these examples can also be called the second component, second element, second region, second layer, or second part, without departing from the teachings of the examples described herein.

[0040] ​Throughout this specification, where a component, element, or layer is described as being "on", "connected to", "coupled to", or "joined to" another component, element, or layer, it can be directly on, directly connected to, directly coupled to, or directly joined to the other component, element, or layer (e.g., in contact with the other component, element, or layer), or there can be one or more other components, elements, or layers intervening. Where a component, element, or layer is described as being "directly on", "directly connected to", "directly coupled to", or "directly joined to" another component, element, or layer, then there are no intervening components, elements, or layers between the component, element, or layer and the other component, element, or layer. Likewise, the expressions, for example, "between" and "directly between", as well as "adjacent" and "directly adjacent", can also be interpreted in the manner as previously described.

[0041] The terminology used herein is for the purpose of describing various examples only and is not intended to be limiting of the present disclosure. Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art. By the term "comprising" or "containing" or "including" or "having" or "characterized by" or "comprises" or "comprised of" or "consisting of" or "consists of" or "consisting essentially of" or "consists essentially of" as used herein are defined as encompassing a total of recited elements or their equivalents, additional elements or their equivalents, or both, unless the context clearly indicates otherwise. As used herein, the term "exemplary" is used to mean "serving as an example, instance, or illustration." Any implementation described as exemplary is not necessarily to be construed as preferred or advantageous over other implementations.

[0042] As used herein, the term "and / or" includes any one of the associated listed items, as well as any combination of any two or more of the associated listed items. The phrases "at least one of A, B, and C", and the like, are intended to mean A or B or C or any combination of A, B, and C. The phrases "at least one of A and B; B or C", and the like, are each intended to mean "A or B or C or any combination of A, B, and C". The phrases "at least one of A, at least one of B, and at least one of C", and the like, are each intended to mean "A or B or C or any combination of A, B, and C".

[0043] The features described herein can be embodied in various forms, and should not be construed as being limited to the examples described herein. Rather, these examples are provided so that this disclosure will be thorough and complete, and fully convey the scope of the methods, apparatuses, and / or systems described herein to be understood after such description is made. Throughout this document, use of the expression "may" (e.g., with respect to what an example or embodiment can include or implement) means that at least one example or embodiment includes or implements such feature, and no example or embodiment is limited to this. The expressions "example" or "embodiment" are used interchangeably herein (e.g., the phrase "in one example" has the same meaning as "in one embodiment," and "in one or more examples" has the same meaning as "in one or more embodiments").

[0044] One or more examples can provide a reflection member that prevents flare phenomenon and a reflection module including the same.

[0045] Figure 1 A perspective view of an example portable electronic device equipped with a camera module according to one or more embodiments is shown.

[0046] Referring to Figure 1 , a camera module 1000 according to one or more embodiments can be mounted on a portable electronic device 1. The portable electronic device 1 can be a portable electronic device such as a mobile communication terminal, a smart phone, or a tablet personal computer (PC), only by way of example.

[0047] As Figure 1 shown, the portable electronic device 1 is equipped with the camera module 1000 to image an object.

[0048] In one or more examples, the camera module 1000 includes a plurality of lenses. Optical axes (Z-axes) of the plurality of lenses can be perpendicular to a thickness direction (X-axis direction, i.e., a direction from a front surface of the portable electronic device 1 to a rear surface of the portable electronic device 1, or a direction from the rear surface of the portable electronic device 1 to the front surface of the portable electronic device 1).

[0049] In an example, the optical axes (Z-axes) of the plurality of lenses disposed in the camera module 1000 can be formed in a width direction or a length direction of the portable electronic device 1.

[0050] Accordingly, even if the camera module 1000 has functions such as auto focus (AF), optical zoom (or zoom), optical image stabilization (OIS), etc., the thickness of the portable electronic device 1 is not increased. Accordingly, the thickness of the portable electronic device 1 can be reduced.

[0051] The camera module 1000 according to one or more embodiments can be equipped with at least one of an AF function, a zoom function, and an OIS function.

[0052] Since the camera module 1000 equipped with the AF function, the zoom function, and the OIS function should be equipped with various components, the size of the camera module can increase compared to a typical camera module.

[0053] If the size of the camera module 1000 increases, it can be difficult to reduce the thickness of the portable electronic device 1 on which the camera module 1000 is mounted.

[0054] For example, the camera module can include a plurality of lens groups to perform a zoom operation, and if the plurality of lens groups are arranged in the thickness direction of the portable electronic device, the thickness of the portable electronic device can increase according to the number of lens groups. Therefore, unless the thickness of the portable electronic device is increased, a sufficient number of lens groups cannot be secured, and zoom performance can be weakened.

[0055] In addition, in order to implement the AF operation, the zoom operation, and the OIS operation, an actuator should be installed to move the plurality of lens groups in the direction of the optical axis or in the direction perpendicular to the optical axis, and here, if the optical axis of the lens group is formed in the thickness direction of the portable electronic device, the actuator that moves the lens group should be installed in the thickness direction of the portable electronic device. In this example, the thickness of the portable electronic device can increase.

[0056] However, in the camera module 1000 according to one or more embodiments, the optical axis (Z axis) of the plurality of lenses is perpendicular to the thickness direction (X axis direction) of the portable electronic device 1, and thus, although the camera module 1000 including the AF function, the zoom function, and the OIS function is installed, the portable electronic device 1 can become thinner.

[0057] Figure 2 is a schematic perspective view of an exemplary camera module according to one or more embodiments, Figure 3 is a schematic exploded perspective view of an exemplary camera module according to one or more embodiments, and Figure 4 is a plan view of a lens disposed in an exemplary camera module according to one or more embodiments.

[0058] First, referring to Figure 2 and Figure 3 , the camera module 1000 includes a housing 100, a reflection module 300, a lens module 400, an image sensor module 500, and a case 200.

[0059] The housing 100 can accommodate at least one of the reflection module 300, the lens module 400, and the image sensor module 500 therein. In an example, the reflection module 300, the lens module 400, and the image sensor module 500 can be disposed in an inner space of the housing 100 from a first side (e.g., an object side) to a second side (e.g., an imaging surface).

[0060] The housing 100 has an inner space that accommodates the reflection module 300, the lens module 400, and the image sensor module 500. However, in an example, the image sensor module 500 can be attached to the outside of the housing 100.

[0061] The housing 100 can have a box shape with an open top.

[0062] Figure 3 An example embodiment in which the reflection module 300 is accommodated in the housing 100 is illustrated. However, unlike the example embodiment of Figure 3 In an example, the reflection module 300 can be disposed separately from the housing 100. In this example, one side of the housing 100 can be open to allow light transmitted from the reflection module 300 to pass through. Also, in an example, the reflection module 300 disposed outside the housing 100 can be accommodated in a separate housing.

[0063] The outer case 200 is coupled to the housing 100 to cover an upper portion of the housing 100. The outer case 200 includes an opening 210 through which light enters. The direction of travel of light incident through the opening 210 of the outer case 200 is changed based on the reflection module 300 and enters the lens module 400.

[0064] The reflection module 300 is configured to change the direction of light. In an example, the direction of light incident into the housing 100 can be changed to be directed toward the lens module 400 by the reflection module 300. The reflection module 300 is disposed in front of the lens module 400.

[0065] The reflection module 300 includes a reflection member 310 mounted on a bracket 330.

[0066] The reflection member 310 is configured to change the direction of travel of light. In a non-limiting example, the reflection member 310 can be a mirror or a prism that reflects light.

[0067] The lens module 400 includes a plurality of lenses and a lens barrel 410 that accommodates the plurality of lenses, through which light whose direction of travel is changed by the reflection member 310 passes.

[0068] In Figure 3 In order to facilitate description, only a lens L1 (hereinafter referred to as a first lens) disposed closest to the object side among the plurality of lenses is illustrated.

[0069] The image sensor module 500 includes a sensor housing 510, an infrared cut filter 530, an image sensor 550, and a printed circuit board (PCB) 570.

[0070] The infrared cut filter 530 can be mounted on the sensor housing 510. The infrared cut filter 530 can block light in an infrared region among light passing through the lens module 400.

[0071] The PCB 570 is coupled to the sensor housing 510, and the PCB 570 is provided with the image sensor 550.

[0072] Light passing through the lens module 400 is received by the image sensor module 500 (e.g., the image sensor 550).

[0073] At least one lens among the plurality of lenses can have a non-circular planar shape. In an example, the first lens L1 is non-circular when viewed in the optical axis direction (Z-axis direction). In a non-limiting example, all of the plurality of lenses can have a non-circular planar shape.

[0074] Referring to Figure 4 In a plane perpendicular to the optical axis (Z-axis), the length of the first lens L1 in a first direction (X-axis direction) perpendicular to the optical axis (Z-axis) can be shorter than the length of the first lens L1 in a second direction (Y-axis direction) perpendicular to both the optical axis (Z-axis) and the first direction (X-axis direction).

[0075] In an example, the first lens L1 has a long axis a and a short axis b. A line segment connecting both sides of the first lens L1 in the first direction (X-axis direction) while passing through the optical axis (Z-axis) is the short axis b, and a line segment connecting both sides of the first lens L1 in the second direction (Y-axis direction) while passing through the optical axis (Z-axis) is the long axis a. The long axis a and the short axis b are perpendicular to each other, and the length of the long axis a is longer than the length of the short axis b.

[0076] The first lens L1 includes an optical portion 10 and a flange portion 30.

[0077] The optical portion 10 can be a portion in which the optical performance of the first lens L1 is displayed. In an example, light reflected from an object can pass through the optical portion 10 and be refracted.

[0078] The optical portion 10 can have a refractive power, and can have an aspherical shape.

[0079] The flange portion 30 can be configured to fix the first lens L1 to another component, e.g., the lens barrel 410, or to fix the first lens L1 to another lens.

[0080] The flange portion 30 can extend from the optical portion 10 and can be integrally formed with the optical portion 10.

[0081] The optical portion 10 can be formed in a non-circular shape. For example, the optical portion 10 can be non-circular when viewed in the optical axis direction (Z-axis direction). Referring to FIG. 1, the optical portion 10 can be formed in a non-circular shape. Figure 4 In a plane perpendicular to the optical axis (Z-axis), the length of the optical portion 10 in a first direction (X-axis direction) perpendicular to the optical axis (Z-axis) is shorter than the length of the optical portion 10 in a second direction (Y-axis direction) perpendicular to both the optical axis (Z-axis) and the first direction (X-axis direction).

[0082] The optical portion 10 includes a first edge 11, a second edge 12, a third edge 13, and a fourth edge 14.

[0083] The first edge 11 and the second edge 12 can each have an arc shape when viewed in the optical axis direction (Z-axis direction).

[0084] The second edge 12 is disposed on the opposite side of the first edge 11. Also, the first edge 11 and the second edge 12 are positioned to face each other based on the optical axis (Z-axis).

[0085] The fourth edge 14 is disposed on the opposite side of the third edge 13. Also, the third edge 13 and the fourth edge 14 are positioned to face each other based on the optical axis (Z-axis).

[0086] The third edge 13 and the fourth edge 14 connect the first edge 11 and the second edge 12, respectively. The third edge 13 and the fourth edge 14 are symmetrical based on the optical axis (Z-axis) and can be formed in parallel to each other.

[0087] The first edge 11 and the second edge 12 can have an arc shape and the third edge 13 and the fourth edge 14 can substantially have a straight shape when viewed in the optical axis direction (Z-axis direction).

[0088] The optical portion 10 has a major axis a and a minor axis b. A line segment connecting the third edge 13 and the fourth edge 14 while passing through the optical axis (Z-axis) at the shortest distance is the minor axis b, and a line segment connecting the first edge 11 and the second edge 12 while passing through the optical axis (Z-axis) and perpendicular to the minor axis b is the major axis a. The length of the major axis a is longer than the length of the minor axis b.

[0089] The flange portion 30 extends in the second direction (Y-axis direction) along the circumference of a portion of the optical portion 10. At least a portion of the flange portion 30 can be in contact with the inner surface of the lens barrel 410.

[0090] The flange portion 30 includes a first flange portion 31 and a second flange portion 32. The first flange portion 31 extends from the first edge 11 of the optical portion 10, and the second flange portion 32 extends from the second edge 12 of the optical portion 10.

[0091] The first edge 11 of the optical portion 10 can refer to a portion adjacent to the first flange portion 31, and the second edge 12 of the optical portion 10 can refer to a portion adjacent to the second flange portion 32.

[0092] The third edge 13 of the optical portion 10 can refer to a side on which the flange portion 30 is not formed on the optical portion 10, and the fourth edge 14 of the optical portion 10 can refer to the other side on which the flange portion 30 is not formed on the optical portion 10.

[0093] In an example, referring to Figure 3 , the first lens L1 is disposed such that one of the side surfaces facing in the first direction (X-axis direction) faces the bottom surface 110 of the housing 100, and is disposed such that the side surface facing in the second direction (Y-axis direction) faces the inner surface of the housing 100. That is, the first lens L1 is disposed such that the side surface facing in the first direction (X-axis direction) faces in the thickness direction (X-axis direction) of the housing 100, and is disposed such that the side surface facing in the second direction (Y-axis direction) faces in the width direction (Y-axis direction) of the housing 100.

[0094] Since the length of the first lens L1 in the first direction (X-axis direction) is shorter than the length in the second direction (Y-axis direction), the thickness of the housing 100 can be reduced.

[0095] In an example, referring to Figure 3 , the camera module 1000 according to one or more embodiments can further include a light blocking plate 600 disposed inside the housing 100.

[0096] As an example, the light blocking plate 600 can be disposed in a space between the lens module 400 and the image sensor module 500.

[0097] The light blocking plate 600 includes a window W in the form of an opening that allows light passing through the lens module 400 to be incident on the image sensor 550.

[0098] Since light passing through the lens module 400 is reflected on the inner surface of the housing 100 and / or the case 200, and unnecessary light can be incident on the image sensor 550, the light blocking plate 600 can be disposed between the lens module 400 and the image sensor module 500, thereby effectively suppressing flare phenomena.

[0099] The surface of the light blocking plate 600 can be surface-treated to scatter light.

[0100] The surface of the light blocking plate 600 can be formed to be rough. For example, the surface of the light blocking plate 600 can be formed to be rougher than the surface of the housing 100.

[0101] In an example, the surface of the light blocking plate 600 can be corroded to become rough.

[0102] A light absorbing layer can be disposed on the surface of the light blocking plate 600 to block unnecessary light. In an example, the surface of the light blocking plate 600 can have a lower reflectivity than the reflectivity of the surface of the housing 100. The light absorbing layer can be black.

[0103] Figure 5A is a schematic exploded perspective view of a reflection module according to one or more embodiments, Figure 5B is a schematic perspective view of a reflection member according to one or more embodiments, Figure 6 is a schematic assembled perspective view of a reflection module according to one or more embodiments, and Figure 7 is a schematic front view of a reflection module according to one or more embodiments.

[0104] Referring to Figures 5A to 7 The reflection module 300 includes a reflection member 310 and a bracket 330, the reflection member 310 being mounted on the bracket 330.

[0105] The reflection member 310 is configured to change a traveling direction of light. In the present exemplary embodiment, the reflection member 310 can be a prism. However, this is merely an example, and the reflection member 310 can also be provided as a mirror.

[0106] The reflection member 310 can be in the form of a rectangular parallelepiped or a cube that is diagonally divided into two halves, and includes an incident surface 311, a reflection surface 312, and an exit surface 313. The incident surface 311 is a surface on which light is incident onto the reflection member 310, the reflection surface 312 is a surface from which light is reflected, and the exit surface 313 is a surface from which light exits the reflection member 310.

[0107] The reflection member 310 includes three rectangular surfaces and two triangular surfaces. For example, the incident surface 311, the reflection surface 312, and the exit surface 313 of the reflection member 310 are each rectangular, and two side surfaces 314 and 315 of the reflection member 310 are substantially triangular.

[0108] Since the edges at which the incident surface 311 and the exit surface 313 are connected are sharp, there is a risk of being damaged by impact. If the edges at which the incident surface 311 and the exit surface 313 are connected are damaged due to impact, a flare phenomenon can occur due to unintended reflection of light.

[0109] Accordingly, a chamfer portion 316 can be provided at a corner where the incident surface 311 and the exit surface 313 of the reflection member 310 are connected, to prevent the reflection member 310 from being damaged due to an impact or the like.

[0110] In an example, the chamfer portion 316 can be formed to have a predetermined angle with respect to the incident surface 311 and the exit surface 313. The angle between the chamfer portion 316 and the incident surface 311 and the angle between the chamfer portion 316 and the exit surface 313 can be an obtuse angle.

[0111] The chamfer portion 316 can include a light blocking layer. In an example, the light blocking layer can be formed by attaching a light blocking film to the chamfer portion 316, or can be formed by coating the chamfer portion 316 with a light blocking paint.

[0112] A light blocking portion 317 can be provided on the incident surface 311 or the exit surface 313. The light blocking portion 317 is described below.

[0113] The bracket 330 includes a first side wall 331 and a second side wall 332 that surround two side surfaces of the reflection member 310. The first side wall 331 is disposed to surround one side surface 314 of the reflection member 310, and the second side wall 332 is disposed to surround the other side surface 315 of the reflection member 310.

[0114] In addition, the bracket 330 includes a mounting surface 333 on which the reflection member 310 is mounted. The mounting surface 333 is disposed between the first side wall 331 and the second side wall 332, and the mounting surface 333 can be an inclined surface.

[0115] In an example, the mounting surface 333 can be an inclined surface inclined by about 45° with respect to the optical axis (Z-axis) of the plurality of lenses. The reflection surface 312 of the reflection member 310 is coupled to the mounting surface 333 of the bracket 330.

[0116] In an example, light passing through the incident surface 311 is reflected by the reflection surface 312 and passes through the exit surface 313.

[0117] However, if light passing through the incident surface 311 is reflected from a portion other than the reflection surface 312 (e.g., the side surfaces 314 and 315 of the reflection member 310), a flare phenomenon can occur.

[0118] In addition, since not all light reflected from the reflection surface 312 is used to form an image, light that is not used to form an image can cause a flare phenomenon, although light is reflected from the reflection surface 312.

[0119] In the camera module 1000 according to one or more embodiments, the bracket 330 can cover a portion of the exit surface 313 of the reflection member 310, thereby preventing flare phenomenon from occurring due to unnecessary light.

[0120] The bracket 330 includes a cover portion 370 configured to cover a portion of the exit surface 313 of the reflection member 310. In an example, the cover portion 370 can be configured to cover both edges of the exit surface 313 of the reflection member 310.

[0121] The cover portion 370 includes a first cover portion 340 and a second cover portion 350.

[0122] The first cover portion 340 extends from the first side wall 331 in a direction (e.g., a first direction (X-axis direction)) perpendicular to the optical axis (Z-axis), and the second cover portion 350 extends from the second side wall 332 in a direction (e.g., a first direction (X-axis direction)) perpendicular to the optical axis (Z-axis). The distance between the first cover portion 340 and the second cover portion 350 in a second direction (Y-axis direction) can approach each other in the first direction (X-axis direction).

[0123] The first cover portion 340 and the second cover portion 350 each cover a portion of the exit surface 313 of the reflection member 310. The first cover portion 340 can be configured to cover one edge of the exit surface 313 of the reflection member 310, and the second cover portion 350 can be configured to cover the other edge of the exit surface 313 of the reflection member 310.

[0124] In an example, the first cover portion 340 can be disposed to surround a portion of the exit surface 313 of the reflection member 310 connected to one side surface 314 of the reflection member 310, and the second cover portion 350 can be disposed to surround a portion of the exit surface 313 of the reflection member 310 connected to the other side surface 315 of the reflection member 310.

[0125] The cover portion 370 can be configured such that the area of the exit surface 313 of the reflection member 310 covered thereby increases toward the bottom surface 110 of the housing 100 (or toward the lower portion of the exit surface 313).

[0126] In an example, the first cover portion 340 and the second cover portion 350 can each be configured such that the area of the exit surface 313 of the reflection member 310 covered thereby increases toward the bottom surface 110 of the housing 100.

[0127] The first cover portion 340 and the second cover portion 350 respectively have surfaces 341 and 351 facing each other. The surfaces 341 and 351 of the first cover portion 340 and the second cover portion 350 facing each other each include a curved surface.

[0128] The surfaces 341 and 351 of the first cover portion 340 and the second cover portion 350 facing each other can be provided with an uneven portion or a light blocking layer to scatter light. For example, the uneven portion can be a surface subjected to an etching process to have a rough surface, and the light blocking layer can be formed by attaching a light blocking film or applying a light blocking paint on the surfaces 341 and 351 of the first cover portion 340 and the second cover portion 350 facing each other.

[0129] Unnecessary light can be blocked by the first cover portion 340 and the second cover portion 350, and light can be scattered by the uneven portion provided in the surfaces 341 and 351 of the first cover portion 340 and the second cover portion 350 facing each other, or unnecessary light can be blocked by the light blocking layer, so that a flare phenomenon can be suppressed.

[0130] In an example, the cover portion 370 can further include a third cover portion 360. The third cover portion 360 can be disposed to cover a portion of the exit surface 313 of the reflection member 310. In an example, the third cover portion 360 can be disposed to surround a portion of the exit surface 313 of the reflection member 310 connected with the reflection surface 312 of the reflection member 310.

[0131] The third cover portion 360 is configured to connect the first cover portion 340 to the second cover portion 350, and can extend from an end of the mounting surface 333 of the bracket 330 in a direction perpendicular to the optical axis (Z-axis) (e.g., the first direction (X-axis direction)).

[0132] The third cover portion 360 includes a plurality of protrusions 361. The plurality of protrusions 361 can be disposed to be connected to each other to form a wavy pattern. The plurality of protrusions 361 can be provided with an uneven portion to scatter light, or can be provided with a light blocking layer. In an example, the uneven portion can be a surface subjected to an etching process to have a rough surface, and the light blocking layer can be formed by attaching a light blocking film to the plurality of protrusions 361 or by coating the plurality of protrusions 361 with a light blocking paint.

[0133] Unnecessary light can be blocked by the third cover portion 360, and light can be scattered by the plurality of protrusions 361 of the third cover portion 360, so that a flare phenomenon can be suppressed.

[0134] In the example camera module 1000 according to one or more embodiments, by forming a light blocking structure in the bracket 330 on which the reflection member 310 is mounted, a flare phenomenon caused by unnecessary light can be prevented.

[0135] Figure 8 A light blocking portion of a reflection member according to one or more embodiments is illustrated.

[0136] Even though the light blocking structure is formed on the bracket 330 on which the reflection member 310 is mounted, a flare phenomenon can occur due to light (e.g., light passing through an edge of the incident surface 311) passing through the incident surface 311 of the reflection member 310 or light (e.g., light passing through an edge of the exit surface 313) passing through the exit surface 313.

[0137] The light blocking portion 317 is disposed on at least one of the incident surface 311 and the exit surface 313 of the reflection member 310. The light blocking portion 317 is configured to cover at least a portion of the incident surface 311 and the exit surface 313. The light blocking portion 317 can cover an edge of at least one of the incident surface 311 and the exit surface 313. In an example, the light blocking portion 317 can be formed of an opaque material. The light blocking portion 317 can be formed by applying an opaque paint to a surface of the reflection member 310.

[0138] In the following description, for convenience of description, the light blocking portion 317 disposed on the incident surface 311 is mainly described, but its description can also be applied to the light blocking portion 317 disposed on the exit surface 313.

[0139] The light blocking portion 317 can be disposed on an edge of the incident surface 311. The light blocking portion 317 can be disposed to extend along the edge of the incident surface 311. That is, the light blocking portion 317 can be disposed on the edge of the incident surface 311 to form a closed path.

[0140] The light blocking portion 317 can include a convex portion 3171 and a concave portion 3172.

[0141] The convex portion 3171 can refer to a portion protruding toward an inner side of the incident surface 311, and the concave portion 3172 can refer to a portion recessed toward an outer side of the incident surface 311.

[0142] The convex portion 3171 and the concave portion 3172 can be disposed to be connected to each other, and can be alternately disposed. A plurality of convex portions 3171 and a plurality of concave portions 3172 can be disposed, and each of the plurality of convex portions 3171 and the plurality of concave portions 3172 can be alternately and repeatedly arranged to form a wave shape. That is, the light blocking portion 317 can have a wave shape formed by connecting the convex portion 3171 and the concave portion 3172 to each other. Since a portion of the light blocking portion 317 is a shape of a wave disposed along the edge of the incident surface 311, the light blocking portion 317 can have an amplitude h and a wavelength λ.

[0143] In an example, the amplitude h of the light blocking portion 317 can be constant along the edge of the incident surface 311.

[0144] The incident surface 311 may have an effective surface. In the example, the effective surface may refer to the area on the incident surface 311 where light strikes. (See reference...) Figure 8 The effective surface can refer to the interior of the first dividing line 3181.

[0145] The first boundary line 3181 can be a virtual line corresponding to the area within which light illuminates the incident surface 311. The first boundary line 3181 can refer to a closed path. (See reference...) Figure 8 The first dividing line 3181 can extend along the edge of the incident surface 311, but its shape can vary. That is, when a separate component is placed in front of the incident surface 311 to cover a portion of it, the first dividing line 3181 can be determined along the area of ​​the incident surface 311 not covered by the separate component. In other words, the shape of the first dividing line 3181, as a closed path, can be determined by the area of ​​light illuminating the incident surface 311. For example, the shape of the first dividing line 3181 can be a square, a circle, or a triangle.

[0146] The amplitude h of the light-blocking portion 317 can remain constant along the first dividing line 3181. The first dividing line 3181 can be set at the half point of the amplitude h of the light-blocking portion 317. That is, the shortest distance from the first dividing line 3181 to the end of the protruding portion 3171 can be the same as the shortest distance from the first dividing line 3181 to the end of the recessed portion 3172. In a non-limiting example, the amplitude h of the light-blocking portion 317 can be, for example, greater than 0.1 mm and less than 1 mm.

[0147] The virtual line connecting the ends of the multiple protrusions 3171 can be referred to as the second dividing line 3182. The second dividing line 3182 can be set parallel to the first dividing line 3181. Compared with the first dividing line 3181, the second dividing line 3182 can be set on the opposite inner side of the incident surface 311.

[0148] Additionally, the virtual line connecting the ends of the plurality of recessed portions 3172 can be referred to as the third dividing line 3183. The third dividing line 3183 can be configured to be parallel to the first dividing line 3181. Compared to the first dividing line 3181, the third dividing line 3183 can be configured on the opposite outer side of the incident surface 311.

[0149] That is, the first boundary line 3181, the second boundary line 3182, and the third boundary line 3183 can be virtual lines extending in parallel to each other. Also, the second boundary line 3182 and the third boundary line 3183 can be disposed on opposite sides of each other with respect to the first boundary line 3181 therebetween. The second boundary line 3182, the first boundary line 3181, and the third boundary line 3183 can be sequentially arranged to be spaced apart from each other.

[0150] In an example, a distance between the first boundary line 3181 and the second boundary line 3182 can be the same as a distance between the first boundary line 3181 and the third boundary line 3183.

[0151] The wavelength λ of the light blocking portion 317 can vary. The wavelength λ of the light blocking portion 317 can vary in an extension direction of the light blocking portion 317. That is, the light blocking portion 317 can have a plurality of wavelengths λ. Each of the plurality of wavelengths λ can vary along the first boundary line 3181. Also, the plurality of wavelengths λ of the light blocking portion 317 can have different sizes. For example, the wavelength λ of the light blocking portion 317 can be in a range of 0.3 mm or more and 2 mm or less, and the size of each of the plurality of wavelengths λ can be different from each other.

[0152] A portion of light incident on the reflection member 310 can be reflected by the light blocking portion 317. In this example, the reflected light can be scattered.

[0153] When light is reflected from a plurality of regions of the light blocking portion 317, the reflected light beams can be scattered in different directions. By scattering the reflected light beams in different directions and by destructive interference between the scattered light beams, a glare can be reduced.

[0154] Figure 9 is a modified example of the light blocking portion 317 according to one or more embodiments. Hereinafter, a description of the same content as the above-described content of the reflection member 310 according to one or more embodiments can be omitted.

[0155] The first boundary line 3181 can have a rectangular structure in which a portion thereof is recessed. That is, an area formed by the first boundary line 3181 can have a structure in which a portion of the first boundary line 3181 is recessed inward of the incident surface 311.

[0156] Referring to Figure 9The incident surface 311 can include a first edge 3110 disposed in a length direction of the incident surface 311, a second edge 3120 facing the first edge 3110, a third edge 3130 connecting the first edge 3110 to the second edge 3120, and a fourth edge 3140 connecting the first edge 3110 to the second edge 3120 and facing the third edge 3130.

[0157] A portion of the first boundary line 3181 extending along the first edge 3110 and the second edge 3120 can include a curved region. Since the second boundary line 3182 and the third boundary line 3183 are arranged in parallel with the first boundary line 3181, the second boundary line 3182 can also have a structure in which a portion of the second boundary line 3182 is recessed inward of the incident surface 311. Thus, a portion of the light-blocking portion 317 extending along the first edge 3110 can be curved inward of the incident surface 311, and a portion of the light-blocking portion 317 extending along the second edge 3120 can also be curved inward of the incident surface 311.

[0158] Figure 10 and Figure 11 Another modified example of the light-blocking portion 317 is illustrated. Hereinafter, a description of the same content as the above-described reflective member 310 according to one or more embodiments can be omitted.

[0159] Similarly to the above-described example embodiment, the light-blocking portion 317 can have a wavy shape. However, according to the example embodiment of the present disclosure, Figure 10 and Figure 11 The wave amplitude h and the wave length λ of the wave can be constant.

[0160] The light-blocking portion 317 can be disposed along an edge of the incident surface 311. The incident surface 311 can include a first edge 3110 disposed in a length direction of the incident surface 311, a second edge 3120 facing the first edge 3110, a third edge 3130 connecting the first edge 3110 to the second edge 3120, and a fourth edge 3140 connecting the first edge 3110 to the second edge 3120 and facing the third edge 3130.

[0161] A portion of the light-blocking portion 317 extending along the first edge 3110 and / or the second edge 3120 can include a region curved inward of the incident surface 311.

[0162] The reflective member and the reflective module including the same according to one or more embodiments can prevent a flare phenomenon.

[0163] While the present disclosure includes specific examples, it will be apparent to one skilled in the art, after an understanding of the disclosure herein, that various changes in form and details can be made without departing from the spirit and scope of the claims and their equivalents. The examples described herein are to be considered in a descriptive sense only and not for purposes of limitation. Descriptions of features or aspects in each example should be considered as being applicable to similar features or aspects in other examples. Proper results can be achieved if the described techniques are performed in a different order, and / or if components in the described systems, architectures, devices, or circuits are combined in a different manner, or replaced or supplemented by other components or their equivalents.

[0164] Thus, although the present disclosure includes specific examples, it will be apparent to one skilled in the art, after an understanding of the disclosure herein, that various changes in form and details can be made without departing from the spirit and scope of the claims and their equivalents. The scope of the disclosure should, therefore, be determined only by the language of the claims and their equivalents, and not by the description or the drawings.

Claims

1. A reflective member characterized by, The reflection member includes: an incident surface on which light is incident; a reflection surface from which incident light is reflected; an exit surface from which reflected light is emitted; and a light-blocking portion extending along an edge of at least one of the incident surface and the exit surface, wherein the light-blocking portion includes a wavy shape formed by a plurality of convex portions and a plurality of concave portions, and wherein the wavy shape has a plurality of wavelengths each having a size that varies in an extending direction of the light-blocking portion.

2. The reflective member according to claim 1, characterized by The sizes of the plurality of wavelengths are different from each other.

3. The reflective member according to claim 1, characterized by The convex portions and the concave portions are repeatedly arranged to form the wavy shape.

4. The reflective member according to claim 1, characterized by The light-blocking portion is formed of an opaque material.

5. The reflective member according to claim 1, wherein The reflection member further includes: a virtual first boundary line corresponding to a region on which light is incident on the incident surface; and a virtual second boundary line connecting end portions of the plurality of convex portions, wherein the first boundary line and the second boundary line are arranged in parallel to each other.

6. The reflective member according to claim 5, characterized by The reflection member further includes: a virtual third boundary line connecting end portions of the plurality of concave portions, wherein the third boundary line is arranged outside the incident surface compared to the first boundary line.

7. The reflective member according to claim 1, wherein Amplitudes of the plurality of wavelengths are constant.

8. The reflective member according to claim 1, wherein The reflection member further includes: a virtual first boundary line corresponding to a region on which light is incident on the incident surface, wherein the first boundary line is arranged along a half point of the amplitudes of the plurality of wavelengths.

9. The reflection member according to claim 1, wherein: an edge of the incident surface includes a first edge arranged in a length direction of the incident surface and a second edge facing the first edge, and a portion of the light-blocking portion extending along the first edge is curved toward an inside of the incident surface.

10. The reflective member according to claim 9, characterized by a portion of the light-blocking portion extending along the second edge is curved toward the inside of the incident surface.

11. The reflective member according to claim 1, characterized by A wavelength of the light-blocking portion is 0.3 mm or more and 2 mm or less.

12. A portable electronic device, characterized in that The portable electronic device includes the reflection member according to any one of claims 1 to 11.

13. A reflective module, characterized by The reflection module includes: a reflection member including an incident surface, a reflection surface, and an exit surface; and a holder on which the reflection member is mounted, wherein a light-blocking portion is provided on at least one of the incident surface and the exit surface of the reflection member, wherein the light-blocking portion is configured to block a portion of at least one of the incident surface and the exit surface, wherein the light-blocking portion includes a wavy shape formed by a plurality of convex portions and a plurality of concave portions, and wherein the wavy shape has a plurality of wavelengths each having a size that varies in an extending direction of the light-blocking portion.

14. The reflective module of claim 13, wherein, The sizes of the plurality of wavelengths are different from each other.

15. The reflective module of claim 13, wherein, The convex portions and the concave portions are repeatedly arranged to form the wavy shape.

16. The reflective module of claim 13, wherein, The reflection member further includes: a virtual first boundary line corresponding to a region on which light is incident on the incident surface; and a virtual second boundary line connecting end portions of the plurality of convex portions, wherein the first boundary line and the second boundary line are arranged in parallel to each other. The first boundary line and the second boundary line are arranged parallel to each other.

17. The reflective module of claim 13, wherein, The amplitudes of the plurality of wavelengths are constant.

18. A portable electronic device, characterized in that The portable electronic device comprises a reflective module according to any one of claims 13 to 17.

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