Camera module and portable electronic device

Abstract

A camera module and a portable electronic device, including: a first lens group having a plurality of lenses and fixedly disposed on an optical axis; and a second lens group having a plurality of lenses and movable in an optical axis direction, in which the first lens group and the second lens group are disposed in order from an object side. A distance on an optical axis from an object-side surface of a lens of a second lens group disposed closest to an object side to an image-side surface of a lens of a second lens group disposed closest to an image side is shorter than a distance on an optical axis from an object-side surface of a lens of a first lens group disposed closest to an object side to an image-side surface of a lens of a first lens group disposed closest to an image side .

Description

[0001] Cross-reference to related applications

[0002] This application claims the benefit of priority to Korean Patent Application No. 10-2024-0006934, filed on January 16, 2024, with the Korean Intellectual Property Office, the entire disclosure of which is incorporated herein by reference for all purposes. Technical Field

[0003] This disclosure relates to a camera module capable of performing macro photography and a portable electronic device including the camera module. Background Technology

[0004] Smartphones can include wide-angle cameras and telephoto cameras with different optical characteristics.

[0005] When using a smartphone to take images of objects at close range, a wide-angle camera with a short focal length is typically used. However, due to the characteristics of the camera, when using a telephoto camera with a long focal length to take images of objects at close range, the surrounding environment of the object may be blurred, and the object itself may stand out, resulting in an image with quality more suitable for close-up conditions.

[0006] Conversely, telephoto cameras can have long focal lengths, which may inevitably increase the drive distance required for focusing when shooting images of objects at close range, resulting in an increase in the length of the camera module.

[0007] The above information is presented as background information and is intended to aid in understanding this disclosure. No determination or assertion is made as to whether any of the above content can be used as prior art with respect to this disclosure. Utility Model Content

[0008] This summary portion is provided to briefly introduce the selection of concepts, which will be further described in the detailed description portion below. This summary portion is not intended to identify key or essential features of the claimed subject matter, nor is it intended to help determine the scope of the claimed subject matter.

[0009] In one general aspect, the camera module includes: a first lens group having a plurality of lenses and fixedly disposed on an optical axis; and a second lens group having a plurality of lenses and movable in the optical axis direction, wherein the first lens group and the second lens group are disposed sequentially from the object side, and wherein the distance on the optical axis from the object side surface of the lens of the second lens group closest to the object side to the image side surface of the lens of the second lens group closest to the image side is shorter than the distance on the optical axis from the object side surface of the lens of the first lens group closest to the object side to the image side surface of the lens of the first lens group closest to the image side.

[0010] The camera module can further include an image sensor disposed on an image side of the second lens group, wherein the second lens group can be configured to be movable in the optical axis direction between the first lens group and the image sensor.

[0011] An optical axis of the first lens group and an optical axis of the second lens group can substantially correspond to each other.

[0012] The first lens group can be accommodated in a first lens barrel, and the second lens group can be accommodated in a second lens barrel.

[0013] The camera module can further include an optical path converter disposed on an object side of the first lens group.

[0014] The optical path converter can be configured to be rotatable about one or more of an optical axis, a first axis perpendicular to the optical axis, and a second axis perpendicular to both the optical axis and the first axis.

[0015] The camera module can further include a third lens group including a plurality of lenses and movable in the optical axis direction, wherein the third lens group can be disposed on an image side of the second lens group.

[0016] One or more of the first lens group and the second lens group can include a D-cut lens having a straight line portion on an edge thereof.

[0017] One or more of the first lens group and the second lens group can include three or more lenses.

[0018] The portable electronic device can include the camera module, wherein the optical axis direction can be perpendicular to a thickness direction of the portable electronic device.

[0019] The portable electronic device can include a plurality of camera modules having different optical characteristics from each other, wherein the plurality of camera modules can include the above-described camera module.

[0020] In another general aspect, a camera module includes a first lens group including some of five or more lenses arranged in an optical axis direction, and a second lens group including the remaining lenses of the five or more lenses. The second lens group is configured to be movable in the optical axis direction relative to the first lens group. A distance on the optical axis from an object side face of a lens disposed closest to an object side of the second lens group to an image side face of a lens disposed closest to an image side of the second lens group is shorter than a distance on the optical axis from an object side face of a lens disposed closest to an object side of the first lens group to an image side face of a lens disposed closest to an image side of the first lens group.

[0021] Each of the first lens group and the second lens group can include two or more lenses.

[0022] The first lens group can be disposed on an object side of the second lens group, and the image sensor can be disposed on an image side of the second lens group.

[0023] One or more of the five or more lenses can include a D-cut lens having a straight line portion on an edge thereof.

[0024] The five or more lenses can be formed of a glass material or a plastic material.

[0025] The camera module can further include a first lens barrel in which the first lens group is installed, a second lens barrel in which the second lens group is installed, and a housing in which the first lens barrel and the second lens barrel are accommodated, wherein the first lens barrel can have a plurality of rib surfaces coupled to the housing.

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

[0027] Figure 1 is a perspective view of a portable electronic device including a camera module mounted thereon according to an exemplary embodiment of the present disclosure.

[0028] Figure 2A is a schematic structural diagram of a camera module (infinity focus mode) according to an exemplary embodiment of the present disclosure.

[0029] Figure 2B is a schematic structural diagram of a camera module (macro focus mode) according to an exemplary embodiment of the present disclosure.

[0030] Figure 3 is a diagram illustrating a configuration of a lens according to an exemplary embodiment of the present disclosure.

[0031] Figure 4 is a diagram illustrating a height of a camera module according to an exemplary embodiment of the present disclosure.

[0032] Figure 5 is a diagram illustrating an exemplary embodiment in which a first lens is disposed as a D-cut lens according to an exemplary embodiment of the present disclosure.

[0033] Figure 6 is an exemplary diagram illustrating a first lens barrel according to an exemplary embodiment of the present disclosure.

[0034] Figure 7A and Figure 7B is an exemplary diagram illustrating driving of an optical path converter of a camera module according to an exemplary embodiment of the present disclosure.

[0035] Figure 8A and Figure 8B FIG. 8 is an example diagram illustrating driving of a light path converter of a camera module according to another example embodiment of the present disclosure.

[0036] 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 depiction of elements in the drawings can be exaggerated for purpose of clarity, illustration and convenience. DETAILED DESCRIPTION

[0037] Hereinafter, while examples of the present disclosure will be described in detail with reference to the accompanying drawings, it should be noted that the examples are not limited thereto.

[0038] The following detailed description is provided to help the reader obtain a thorough understanding of the methods, devices, and / or systems described herein. However, various changes, modifications, and equivalents of the methods, devices, and / or systems described herein will be apparent after an understanding of the present disclosure. For example, the order of the operations described herein is merely an example, and is not limited to the order set forth herein, except where the order of the operations must be performed in a specific order, as will be apparent to one of skill in the art after an understanding of the present disclosure. Also, descriptions of features in terms of being performed in a specific order are used for enabling a more complete and concise description of embodiments disclosed herein, and do not limit excution to a particular order, unless otherwise noted or unless it would necessarily be obvious to one skilled in the art that the features could not be performed in other order.

[0039] The features described herein can be implemented in different forms and should not be construed as limited to the examples described herein. Rather, these examples are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the methods, devices, and / or systems to be implemented after an understanding of this disclosure. Further, the description should not be construed as limiting any implementations to the examples set forth herein.

[0040] Throughout the specification, when an element such as a layer, region, or substrate is referred to as being "on", "connected to", or "coupled to" another element, it can be directly on, directly connected to, or directly coupled to the other element, or one or more other elements can be interposed therebetween. Conversely, when an element is referred to as being "directly on", "directly connected to", or "directly coupled to" another element, there are no other elements interposed therebetween.

[0041] 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; likewise, "at least one of" includes any one of the associated listed items, as well as any combination of any two or more of the associated listed items.

[0042] Although terms such as "first", "second", and "third" can be used herein to describe various elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. Rather, these terms are only used to distinguish one element, component, region, layer or section from another element, component, region, layer or section. Thus, terms mentioned in the examples can also be referred to as a second element, a second component, a second region, a second layer or a second section without departing from the teachings of the examples described herein.

[0043] Spatially relative terms, such as "on", "above", "below", "lower", "upper" and the like, can be used herein for ease of description to describe one element or feature's relationship to another element(s) or feature(s) as illustrated in the figures. Such spatially relative terms can encompass different orientations of the device in use or operation, depending on the particular orientation of the device in the figures. For example, if the device in the figures is turned over, elements described as "on" or "above" other elements or features would then be oriented "below" or "under" the other elements or features. Thus, the spatially relative terms can encompass the various orientations of the device in use or operation, depending on the particular orientation of the device in the figures. The device can be otherwise oriented (e.g., rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

[0044] 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. The following description of examples of the present disclosure should not be interpreted, e.g., by manufacturers / suppliers of the respective products or tools, as pertaining only to physical embodiments of the examples. The examples described herein can be implemented in hardware, software, firmware, or any combination thereof. Various aspects of the examples can be implemented using computer-readable media for example, of a computer program product. The computer-readable media can include a computer-readable storage medium or a computer-readable communication medium.

[0045] Due to manufacturing techniques and / or tolerances, variations of the shapes illustrated in the drawings can occur. Therefore, the examples described herein are not limited to the specific shapes illustrated in the drawings, but include variations of the shapes that occur due to manufacturing processes.

[0046] It should be noted that, in this document, the term "may" is used to mean that there is a possibility that a feature, an example, or an example can include or perform that feature. Thus, unless specifically stated otherwise, the examples described herein can include or perform that feature, although not every example can include or perform that feature.

[0047] The features of the examples described herein can be combined in a variety of ways as will be apparent following the understanding of the present disclosure. Also, although the examples described herein have a variety of configurations, other configurations are possible in light of the present disclosure.

[0048] The present disclosure provides a camera module capable of photographing an image of an object at an ultra-close distance.

[0049] More specifically, the present disclosure provides a camera module that reduces a required driving amount when photographing an image of an object at an ultra-close distance in a telephoto camera.

[0050] Figure 1 is a perspective view of a portable electronic device including a camera module mounted thereon according to an exemplary embodiment of the present disclosure.

[0051] In an exemplary embodiment, the portable electronic device 1 can be a smart phone, or can be other types of mobile communication terminals such as a tablet PC, etc.

[0052] A plurality of camera modules 100 and 200 can be mounted on the portable electronic device 1 to photograph an image of an object.

[0053] The plurality of camera modules 100 and 200 can have different optical characteristics from each other. For example, the plurality of camera modules 100 and 200 can include a first camera module 100 having a relatively long focal length and a narrow angle of view, and a second camera module 200 having a relatively short focal length and a wide angle of view.

[0054] The first camera module 100 and the second camera module 200 can be mounted on a rear surface of the portable electronic device 1. Although not shown in the drawings, the same or other types of camera modules can be mounted on a front surface of the portable electronic device 1.

[0055] The above-described first camera module 100 can be a camera module according to an exemplary embodiment of the present disclosure. Hereinafter, the camera module 100 according to an exemplary embodiment of the present disclosure will be described in detail.

[0056] The camera module 100 according to an exemplary embodiment of the present disclosure can be configured to allow photographing of an image of an object at a far distance and an image of an object at an ultra-close distance.

[0057] Figure 2A is a schematic structural diagram of a camera module according to an exemplary embodiment of the present disclosure (macro focus mode). Figure 2B is a schematic structural diagram of a camera module according to an exemplary embodiment of the present disclosure (macro focus mode).

[0058] The camera module 100 according to an exemplary embodiment of the disclosure can include a plurality of lenses and a plurality of lens barrels 110 and 120 in which the plurality of lenses are mounted.

[0059] In an exemplary embodiment, the camera module 100 can include a first lens barrel 110 and a second lens barrel 120. The first lens barrel 110 and the second lens barrel 120 can be disposed to be spaced apart from each other in an optical axis direction (Z-axis direction). According to another exemplary embodiment, the camera module 100 can further include a third lens barrel (not shown) or the like.

[0060] In an exemplary embodiment, a position of the first lens barrel 110 in the optical axis (Z-axis) can be fixed, and a position of the second lens barrel 120 in the optical axis (Z-axis) can be varied. That is, the second lens barrel 120 can be moved in the optical axis direction (Z-axis direction), and when an image of an object at an ultra-close distance is photographed, the second lens barrel 120 can be moved from a position shown in Figure 2A to a position shown in Figure 2B A detailed description thereof will be provided below.

[0061] In an exemplary embodiment, the camera module 100 can include five or more lenses. The five or more lenses can be formed of a glass material or a plastic material. The five or more lenses can be mounted in the first lens barrel 110 and the second lens barrel 120 and disposed in the optical axis direction (Z-axis direction).

[0062] A plurality of lenses (i.e., at least two lenses) can be mounted in each of the first lens barrel 110 and the second lens barrel 120. The plurality of lenses mounted in the first lens barrel 110 can form a first lens group LG1, and the plurality of lenses mounted in the second lens barrel 120 can form a second lens group LG2. An optical axis (Z-axis) of the first lens group LG1 and an optical axis (Z-axis) of the second lens group LG2 can substantially correspond to each other.

[0063] Figure 3 is a diagram illustrating a configuration of a lens according to an exemplary embodiment of the disclosure.

[0064] As described above, the first lens group LG1 and the second lens group LG2 can be configured to include two or more lenses. In addition, the camera module 100 can include five or more lenses such that one of the first lens group LG1 and the second lens group LG2 can include three or more lenses.

[0065] In Figure 3In the exemplary embodiment illustrated in FIG. 1, each of the first lens group LG1 and the second lens group LG2 can include three lenses. The first lens group LG1 can include a first lens L1, a second lens L2, and a third lens L3, and the second lens group LG2 can include a fourth lens L4, a fifth lens L5, and a sixth lens L6. The first lens L1 to the sixth lens L6 can be sequentially disposed from the object side.

[0066] The first lens L1 to the sixth lens L6 can be disposed at predetermined intervals. To this end, at least one spacer can be disposed between two adjacent lenses. Specifically, the spacer can be disposed between two adjacent lenses included in the same lens group, and can have a thickness that varies according to the predetermined interval between the lenses.

[0067] With regard to the interval between the first lens group LG1 and the second lens group LG2, the first lens barrel 110 and the second lens barrel 120 can be disposed to be spaced apart from each other at a predetermined interval such that the first lens group LG1 and the second lens group LG2 have a predetermined interval therebetween. However, in the exemplary embodiment of the disclosure, the second lens barrel 120 can be disposed to be movable in the optical axis direction (Z-axis direction), and thus the interval between the first lens group LG1 and the second lens group LG2 can be changed.

[0068] According to the exemplary embodiment of the disclosure, a distance from an object side surface of a lens disposed closest to the object side (e.g., the fourth lens L4) of the second lens group LG2 to an image side surface of a lens disposed closest to the image side (e.g., the sixth lens L6) of the second lens group LG2 on the optical axis can be shorter than a distance from an object side surface of a lens disposed closest to the object side (e.g., the first lens L1) of the first lens group LG1 to an image side surface of a lens disposed closest to the image side (e.g., the third lens L3) of the first lens group LG1 on the optical axis. Accordingly, the length of the second lens barrel 120 in the optical axis direction (Z-axis direction) can be shorter than the length of the first lens barrel 110 in the optical axis direction (Z-axis direction). In addition, the length of the second lens barrel 120 in the height direction (Y-axis direction) and the width direction (X-axis direction) can be shorter than the length of the first lens barrel 110 in the height direction (Y-axis direction) and the width direction (X-axis direction).

[0069] Referring again to Figure 2A and Figure 2B , the image sensor 140 can be disposed on the image side of the second lens barrel 120. That is, the first lens barrel 110 can be disposed on the object side of the second lens barrel 120, and the image sensor 140 can be disposed on the image side of the second lens barrel 120.

[0070] The second lens barrel 120 can move in the optical axis direction (Z-axis direction) between the first lens barrel 110 and the image sensor 140. When an image of an object at an ultra-close distance is photographed, the second lens barrel 120 can move from a first position P1 shown in Figure 2A to a second position P2 shown in Figure 2B .

[0071] According to an exemplary embodiment of the present disclosure, the position of the first lens barrel 110 in the optical axis (Z-axis) can be fixed so that the distance D from the object side surface of the first lens barrel 110 to the imaging surface of the image sensor 140 can always be constant. In contrast, the position of the second lens barrel 120 in the optical axis (Z-axis) can vary depending on the distance from the object so that the distance d from the object side surface of the second lens barrel 120 to the imaging surface of the image sensor 140 can vary.

[0072] According to an exemplary embodiment of the present disclosure, the plurality of lenses can be divided into the first lens group LG1 and the second lens group LG2, and the divided lenses can be respectively mounted in the first lens barrel 110 and the second lens barrel 120. Then, when an image of an object at an ultra-close distance is photographed, only the second lens barrel 120 can move for focusing, thereby greatly reducing the moving distance of the lens group required for focus adjustment.

[0073] Further, according to an exemplary embodiment of the present disclosure, only the second lens barrel 120 can move in a state in which the position of the first lens barrel 110 in the optical axis (Z-axis) is fixed, so that even when the camera module 100 has a macro function, the total length of the camera module 100 is not increased. Therefore, the camera module 100 can have a reduced size.

[0074] Further, the size of the second lens barrel 120 that moves during focus adjustment can be smaller than the size of the first lens barrel 110, so that focus adjustment can be performed with a smaller driving force, and can be advantageous in driving stability.

[0075] In an exemplary embodiment further including a third lens barrel, when an image of an object at an ultra-close distance is photographed, the third lens barrel can move together with the second lens barrel 120 in the optical axis direction (Z-axis direction).

[0076] The camera module 100 according to the exemplary embodiment of the disclosure can also include a light path converter 130 disposed on an object side of the first lens barrel 110. The light path converter 130 can convert a path of light incident onto the camera module 100 by about 90 degrees. In the exemplary embodiment, the light path converter 130 can convert a traveling direction of light incident in a first axis direction (Y axis direction) to an optical axis direction (Z axis direction). For example, the light path converter 130 can be a prism or a reflecting surface such as a mirror.

[0077] The camera module 100 according to the exemplary embodiment of the disclosure can be a telephoto camera including the light path converter 130. The telephoto camera can have a long focal length such that a large moving distance can be allowed for focus adjustment when an image of an object is photographed at an ultra-close distance. However, according to the exemplary embodiment of the disclosure, only the second lens barrel 120 can move in a state in which the position of the first lens barrel 110 is fixed, thereby further reducing the moving distance.

[0078] Figure 4 FIG. 1B is a diagram illustrating a height of a camera module according to an exemplary embodiment of the disclosure. Figure 5 FIG. 2B is a diagram illustrating an exemplary embodiment in which a first lens is disposed as a D-cut lens according to an exemplary embodiment of the disclosure.

[0079] The camera module 100 according to the exemplary embodiment of the disclosure can be mounted on the portable electronic device 1 such that a height direction of the camera module 100 can be parallel to Figure 1 a thickness direction of the portable electronic device 1 as illustrated in FIG. 1B. Accordingly, based on the slimming of the portable electronic device 1, it is also useful that the size of the camera module 100 in the height direction (Y axis direction) is reduced.

[0080] The height H of the camera module 100 can be determined by the height of an imaging surface of the image sensor 140 when a large size sensor is used and the maximum diameter of the lens. Accordingly, in order to reduce the size of the camera module 100 in the height direction, at least one of the plurality of lenses can be disposed as a D-cut lens.

[0081] In the exemplary embodiment, the first lens L1 among the plurality of lenses can have the maximum diameter, and thus the first lens L1 can be disposed as a D-cut lens which is cut at opposite sides in the height direction (Y axis direction). The D-cut lens can refer to a lens which has a straight line portion SL at an edge of the lens due to a portion of the lens being cut.

[0082] In another exemplary embodiment, at least one of the second lens L2 to the sixth lens L6 can be a D-cut lens. In this case, the first lens L1 can or can not be a D-cut lens.

[0083] According to an exemplary embodiment of the present disclosure, the first lens barrel 110 and the second lens barrel 120 can be disposed in a housing (not shown). The housing can be a fixed member. The second lens barrel 120 can be disposed to be movable in the optical axis direction (Z-axis direction) so that the second lens barrel 120 can be movably supported by the housing. Conversely, the position of the first lens barrel 110 in the optical axis (Z-axis) can be fixed so that the first lens barrel 110 can be disposed in the housing in a state of being structurally coupled to the housing.

[0084] Figure 6 FIG. 1 is an example diagram illustrating a first lens barrel according to an exemplary embodiment of the present disclosure.

[0085] According to an exemplary embodiment of the present disclosure, the first lens barrel 110 can be structurally coupled to the housing by the rib surfaces R1 to R6. The first lens barrel 110 can have a plurality of rib surfaces, thereby increasing the contact area between the first lens barrel 110 and the housing and improving the coupling force therebetween. The first lens barrel 110 can preferably have four or more rib surfaces. In an exemplary embodiment, at least the upper left end, the upper right end, the lower left end, and the lower right end of the first lens barrel 110 can have rib surfaces, respectively. Figure 6 The number and position of the rib surfaces shown in FIG. 1 are merely examples, and some rib surfaces can be omitted or rib surfaces can be additionally provided at other positions.

[0086] In an exemplary embodiment of the present disclosure, a plurality of lenses included in the first lens group LG1 can be mounted in the first lens barrel 110, and at least one of the plurality of lenses can be a glass material. As described above, even when the weight of the first lens barrel 110 itself is increased due to the lens formed of the glass material, the first lens barrel 110 can be coupled to the housing by the plurality of rib surfaces R1 to R6, thereby it can be possible to secure sufficient coupling force. Accordingly, the first lens barrel 110 can be stably coupled to the housing.

[0087] Figure 7A and Figure 7B FIG. 2 is an example diagram illustrating driving of an optical path converter of a camera module according to an exemplary embodiment of the present disclosure. Figure 8A and Figure 8B FIG. 3 is an example diagram illustrating driving of an optical path converter of a camera module according to another exemplary embodiment of the present disclosure.

[0088] According to an exemplary embodiment of the present disclosure, the focus adjustment function of the camera module 100 can be implemented by moving the second lens barrel 120 in the optical axis direction (Z-axis direction), and the image stabilization function can be implemented by rotating the optical path converter 130 about two axes.

[0089] In an exemplary embodiment, the first axis (Y axis) perpendicular to the optical axis (Z axis) and the second axis (X axis) perpendicular to the first axis (Y axis) can be used as the rotation axes to rotate the optical path converter 130. When the optical path converter 130 is rotated about the first axis (Y axis) and the second axis (X axis), the interval between the optical path converter 130 and the first lens barrel 110 can be reduced. Accordingly, in order to prevent collision between the optical path converter 130 and the first lens barrel 110 during rotation of the optical path converter 130, the first lens barrel 110 can be disposed to have a sufficient interval from the optical path converter 130.

[0090] Alternatively, in another exemplary embodiment, the optical axis (Z axis) and the second axis (X axis) perpendicular to the optical axis (Z axis) can be used as the rotation axes to rotate the optical path converter 130.

[0091] The camera module according to an exemplary embodiment of the present disclosure can reduce the amount of movement when an image of an object is photographed at an ultra-close distance. Accordingly, the camera module can have a reduced size.

[0092] While specific examples have been shown and described in the foregoing detailed description, it will be understood 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 understood as descriptive only and not limiting. The description of features or aspects within each example should be regarded as applicable to similar features or aspects within other examples. If the described techniques are performed in a different order, and / or if the described systems, architectures, devices, or circuits are combined or substituted with other components or their equivalents, appropriate results can still be achieved. Accordingly, the scope of the disclosure is not limited by the specific implementations described above, but only by the claims and their equivalents, and all variations within the scope of the claims and their equivalents are to be construed as being included in the disclosure.

Claims

1. A camera module, characterized in that, The camera module includes: The first lens group comprises multiple lenses and is fixedly arranged on the optical axis; and The second lens group comprises multiple lenses and is movable along the optical axis. The first lens group and the second lens group are arranged sequentially from the object side, and Wherein, the distance on the optical axis from the object side of the lens closest to the object side of the second lens group to the image side of the lens closest to the image side of the second lens group is shorter than the distance on the optical axis from the object side of the lens closest to the object side of the first lens group to the image side of the lens closest to the image side of the first lens group.

2. The camera module according to claim 1, characterized in that, The camera module also includes: An image sensor is disposed on the image side of the second lens group. The second lens group is configured to be movable between the first lens group and the image sensor in the optical axis direction.

3. The camera module according to claim 1, characterized in that, The optical axis of the first lens group corresponds to the optical axis of the second lens group.

4. The camera module according to claim 1, characterized in that, The first lens group is housed in a first lens barrel, and the second lens group is housed in a second lens barrel.

5. The camera module according to claim 1, characterized in that, The camera module also includes: An optical path converter is disposed on the object side of the first lens group.

6. The camera module according to claim 5, characterized in that, The optical path converter is configured to rotate about one or more of the optical axis, a first axis perpendicular to the optical axis, and a second axis perpendicular to both the optical axis and the first axis.

7. The camera module according to claim 1, characterized in that, The camera module also includes: The third lens group includes multiple lenses and is movable along the optical axis. The third lens group is disposed on the image side of the second lens group.

8. The camera module according to claim 1, characterized in that, One or more of the first lens group and the second lens group include D-shaped cut lenses having straight portions on their edges.

9. The camera module according to claim 1, characterized in that, One or more of the first lens group and the second lens group include three or more lenses.

10. A portable electronic device, characterized in that, The portable electronic device includes: The camera module according to any one of claims 1 to 9, The optical axis is perpendicular to the thickness direction of the portable electronic device.

11. A portable electronic device, characterized in that, The portable electronic device includes: Multiple camera modules with different optical characteristics The plurality of camera modules include the camera module according to any one of claims 1 to 9.

12. A camera module, characterized in that, The camera module includes: A first lens group and a second lens group, wherein the first lens group includes some of five or more lenses arranged along the optical axis, and the second lens group includes the remaining lenses among the five or more lenses. The second lens group is configured to be movable relative to the first lens group in the optical axis direction, and The distance on the optical axis from the object side of the lens closest to the object side of the second lens group to the image side of the lens closest to the image side of the second lens group is shorter than the distance on the optical axis from the object side of the lens closest to the object side of the first lens group to the image side of the lens closest to the image side of the first lens group.

13. The camera module according to claim 12, characterized in that, Each of the first lens group and the second lens group includes two or more lenses.

14. The camera module according to claim 12, characterized in that, The first lens group is disposed on the object side of the second lens group, and an image sensor is disposed on the image side of the second lens group.

15. The camera module according to claim 12, characterized in that, The camera module also includes: An optical path converter is disposed on the object side of the first lens group.

16. The camera module according to claim 12, characterized in that, One or more of the five or more lenses include D-shaped cut lenses with straight portions on their edges.

17. The camera module according to claim 12, characterized in that, The five or more lenses are formed of glass or plastic material.

18. The camera module according to claim 12, characterized in that, The camera module also includes: The first lens barrel, the first lens group is installed in the first lens barrel; A second lens barrel, wherein the second lens group is installed in the second lens barrel; and The housing contains the first lens barrel and the second lens barrel. The first lens barrel has multiple rib surfaces that are connected to the housing.

19. A portable electronic device, characterized in that, The portable electronic device includes: The camera module according to any one of claims 12 to 18, The optical axis is perpendicular to the thickness direction of the portable electronic device.

20. A portable electronic device, characterized in that, The portable electronic device includes: Multiple camera modules with different optical characteristics The plurality of camera modules include the camera module according to any one of claims 12 to 18.

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