Camera module and portable electronic device

By designing a movable second lens group and optical path converter in the smart phone camera module, the problem of increasing length of the telephoto camera during close shooting is solved, and clear shooting and compact design at ultra-close distance are achieved.

CN120335133APending Publication Date: 2025-07-18SAMSUNG ELECTRO MECHANICS CO LTD
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Patent Information

Application Number
CN202510022548.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Priority Date
2024-01-16
Filing Date
2025-01-07
Publication Date
2025-07-18

AI Technical Summary

Technical Problem

When existing smartphones are shot at close range, the length of the far camera module increases, resulting in increased blur and focus driving distances, making it difficult to capture clear images at very close ranges.

Method used

The design of the first lens group and the second lens group are adopted, wherein the second lens group is movable in the optical axis direction and its optical axis distance is shorter than that of the first lens group, combining the optical path converter and the D-shaped cutting lens to reduce the movement distance required for focusing.

Benefits of technology

It realizes reducing the focus drive amount during ultra-close shooting, maintaining the compact size of the camera module, and improving the stability and efficiency of focus adjustment.

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Abstract

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 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 .
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Description

[0001] Cross - reference to related applications

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

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

[0004] A smartphone may include a wide - angle camera and a telephoto camera having different optical characteristics.

[0005] When using a smartphone to capture an image of an object at a close distance, a wide - angle camera with a short focal length is generally used. However, due to the characteristics of the camera, when using a telephoto camera with a long focal length to capture an image of an object at a close distance, the surrounding environment of the object may be blurred, and the image of the object can stand out, so that an image with a quality more suitable for close - up conditions can be obtained.

[0006] On the contrary, a telephoto camera may have a long focal length, such that when capturing an image of an object at a close distance, the driving distance required for focusing may inevitably increase, resulting in an increase in the length of the camera module.

[0007] The above information is presented as background information only to assist in understanding the present disclosure. No determination has been made, and no assertion is made as to whether any of the above constitutes prior art with respect to the present disclosure. Summary of the Invention

[0008] The Summary of the Invention section is intended to introduce a selection of concepts in a brief form, which will be further described in the Detailed Description section below. The Summary of the Invention section is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used to help determine the scope of the claimed subject matter.

[0009] In one general aspect, a 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 sequentially disposed from the object side, and wherein the distance on the optical axis from the object - side surface of the lens closest to the object side of the second lens group to the image - side surface 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 surface of the lens closest to the object side of the first lens group to the image - side surface of the lens closest to the image side of the first lens group.

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

[0011] The optical axis of the first lens group and the optical axis of the second lens group may substantially correspond to each other.

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

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

[0014] The optical path converter may be configured to be rotatable 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.

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

[0016] One or more of the first lens group and the second lens group may include a D-shaped cut lens having a straight portion on its edge.

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

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

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

[0020] In another general aspect, a camera module includes a first lens group and a second lens group. The first lens group includes some of five or more lenses arranged in the optical axis direction, and the second lens group includes the remaining of 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. 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.

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

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

[0023] One or more of the five or more lenses may include a D-shaped cutting lens having a straight portion on its edge.

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

[0025] The camera module may further include: a first lens barrel in which the first lens group may be mounted; a second lens barrel in which the second lens group may be mounted; and a housing in which the first lens barrel and the second lens barrel may be accommodated, wherein the first lens barrel may 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 THE 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 (infinite focus mode) of a camera module according to an exemplary embodiment of the present disclosure.

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

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

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

[0032] Figure 5 is a diagram showing an exemplary embodiment in which the first lens is provided as a D-shaped cutting lens according to an exemplary embodiment of the present disclosure.

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

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

[0035] Figure 8A andFigure 8B FIG. is an exemplary diagram showing driving of an optical path converter of a camera module according to another exemplary embodiment of the present disclosure.

[0036] Throughout the drawings and the detailed description, unless otherwise described, the same reference numerals refer to the same elements. For clarity, illustration, and convenience, the drawings may not be drawn to scale, and the relative dimensions, ratios, and depictions of elements in the drawings may be exaggerated. DETAILED DESCRIPTION

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

[0038] The following detailed description is provided to assist the reader in obtaining a comprehensive understanding of the methods, apparatuses, and / or systems described herein. However, various changes, modifications, and equivalents of the methods, apparatuses, and / or systems described herein will be apparent after understanding the present disclosure. For example, the order of operations described herein is merely exemplary and, except for operations that must occur in a specific order, is not limited to the order set forth herein but may be changed, which will be apparent after understanding the present disclosure. Additionally, descriptions of features known in the art may be omitted for greater clarity and conciseness.

[0039] The features described herein may be implemented in different forms and should not be construed as limited to the examples described herein. Rather, the examples described herein are provided only to illustrate some of the many possible ways of implementing the methods, apparatuses, and / or systems described herein that will be apparent after understanding the present disclosure.

[0040] Throughout the specification, when an element such as a layer, region, or substrate is described as being "on," "connected to," or "coupled to" another element, the element may be directly "on," directly "connected to," or directly "coupled to" the other element, or there may be one or more other elements intervening between the element and the other element. Conversely, when an element is described as being "directly on," "directly connected to," or "directly coupled to" another element, there are no other elements intervening between the element and the other element.

[0041] As used herein, the phrase "and / or" includes any one of the associated listed items and any combination of any two or more of them; similarly, "at least one" includes any one of the associated listed items and any combination of any two or more of them.

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

[0043] Spatial relative terms such as "above", "upper", "below", "lower", etc. may be used herein for convenience of description to describe the relationship of one element relative to another as shown in the figures. In addition to covering the orientations depicted in the figures, these spatial relative terms are intended to also cover different orientations of the device in use or operation. For example, if the device in the figures is flipped, an element described as "above" or "upper" relative to another element will be "below" or "lower" relative to that other element. Thus, depending on the spatial orientation of the device, the term "above" covers both the orientation of "above" and "below". The device may also be oriented in other ways (e.g., rotated 90 degrees or in other orientations), and the spatial relative terms used herein should be interpreted accordingly.

[0044] The terms used herein are for the purpose of describing various examples only and are not intended to limit the disclosure. Unless the context clearly dictates otherwise, the terms "a", "an", and "the" are intended to include the plural forms as well. The terms "comprising", "including", and "having" specify the presence of the stated features, quantities, operations, components, elements, and / or combinations thereof, but do not preclude the presence or addition of one or more other features, quantities, operations, components, elements, and / or combinations thereof.

[0045] Variations in the shapes shown in the figures may occur due to manufacturing techniques and / or tolerances. Thus, the examples described herein are not limited to the specific shapes shown in the figures but include shape variations that occur during manufacturing.

[0046] It should be noted that herein, the term "may" is used with respect to an example, e.g., with respect to what an example may include or implement, meaning that there is at least one example in which such a feature is included or implemented, and not all examples are limited thereto.

[0047] The features of the examples described herein can be combined in various ways that will be apparent after understanding the present disclosure. In addition, although the examples described herein have various configurations, other configurations that will be apparent after understanding the present disclosure are also possible.

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

[0049] More specifically, the present disclosure provides a camera module that reduces the amount of drive required when capturing 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 may be a smart phone or may be another type of mobile communication terminal such as a tablet PC.

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

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

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

[0055] The above-described first camera module 100 may 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 may be configured to allow capturing an image of an object at a long distance and an image of an object at an ultra-close distance.

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

[0058] The camera module 100 according to an exemplary embodiment of the present disclosure may 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 may include a first lens barrel 110 and a second lens barrel 120. The first lens barrel 110 and the second lens barrel 120 may be arranged to be spaced apart from each other in the optical axis direction (Z-axis direction). According to another exemplary embodiment, the camera module 100 may further include a third lens barrel (not shown) and the like.

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

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

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

[0063] Figure 3 is a diagram showing the configuration of lenses according to an exemplary embodiment of the present disclosure.

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

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

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

[0067] Regarding 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 may be arranged to be spaced apart from each other at a predetermined interval such that there is a predetermined interval between the first lens group LG1 and the second lens group LG2. However, in the exemplary embodiment of the present disclosure, the second lens barrel 120 may be arranged 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 may be changed.

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

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

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

[0071] According to an exemplary embodiment of the present disclosure, the position of the first lens barrel 110 on the optical axis (Z-axis) can be fixed such 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 on the optical axis (Z-axis) can vary according to the distance to the object such 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, a plurality of lenses can be divided into a first lens group LG1 and a 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 is captured at an ultra-close distance, only the second lens barrel 120 can move for focusing, thereby greatly reducing the moving distance of the lens group required for focusing adjustment.

[0073] Furthermore, according to an exemplary embodiment of the present disclosure, only the second lens barrel 120 can move while the position of the first lens barrel 110 on the optical axis (Z-axis) is fixed, such that even when the camera module 100 has a macro function, the total length of the camera module 100 does not increase. Thus, the camera module 100 can have a reduced size.

[0074] In addition, the size of the second lens barrel 120 that moves during focusing adjustment can be smaller than the size of the first lens barrel 110, such that focusing adjustment can be performed with a smaller driving force and can be advantageous in terms of driving stability.

[0075] In an exemplary embodiment further including a third lens barrel, when an image of an object is captured at an ultra-close distance, 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 an exemplary embodiment of the present disclosure may further include an optical path converter 130 disposed on the object side of the first lens barrel 110. The optical path converter 130 may convert the path of light incident on the camera module 100 by approximately 90 degrees. In an exemplary embodiment, the optical path converter 130 may convert the traveling direction of light incident in the first axis direction (Y-axis direction) to the optical axis direction (Z-axis direction). For example, the optical path converter 130 may be a prism or a reflective surface such as a mirror.

[0077] The camera module 100 according to an exemplary embodiment of the present disclosure may be a telephoto camera including an optical path converter 130. The telephoto camera may have a long focal length, such that when capturing an image of an object at a very close distance, a relatively large moving distance may be allowed for focusing adjustment. However, according to an exemplary embodiment of the present disclosure, only the second lens barrel 120 may move while the position of the first lens barrel 110 is fixed, thereby further reducing the moving distance.

[0078] Figure 4 FIG. is a view showing the height of a camera module according to an exemplary embodiment of the present disclosure. Figure 5 FIG. is a view showing an exemplary embodiment in which a first lens is provided as a D-shaped cut lens according to an exemplary embodiment of the present disclosure.

[0079] The camera module 100 according to an exemplary embodiment of the present disclosure may be mounted on the portable electronic device 1 such that the height direction of the camera module 100 may be parallel to Figure 1 the thickness direction of the portable electronic device 1 shown in FIG. Therefore, based on the thinning of the portable electronic device 1, it is also useful to reduce the size of the camera module 100 in the height direction (Y-axis direction).

[0080] The height H of the camera module 100 may be determined by the height of the imaging surface of the image sensor 140 when using a large-sized sensor and the maximum diameter of the lens. Therefore, in order to reduce the size of the camera module 100 in the height direction, at least one of the plurality of lenses may be provided as a D-shaped cut lens.

[0081] In an exemplary embodiment, the first lens L1 among the plurality of lenses may have the maximum diameter, and thus the first lens L1 may be provided as a D-shaped cut lens that is cut on the opposite side in the height direction (Y-axis direction). The D-shaped cut lens may refer to a lens having a straight line portion SL at the edge of the lens due to a part of the lens being cut.

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

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

[0084] Figure 6 is an exemplary view showing 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 may be structurally coupled to the housing through rib surfaces R1 to R6. The first lens barrel 110 may 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 may preferably have four or more rib surfaces. In an exemplary embodiment, at least the upper left end, upper right end, lower left end, and lower right end of the first lens barrel 110 may respectively have rib surfaces. Figure 6 The number and positions of the rib surfaces shown in are merely examples, and some rib surfaces may be omitted or additional rib surfaces may be provided at other positions.

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

[0087] Figure 7A and Figure 7B is an exemplary view showing the driving of an optical path converter of a camera module according to an exemplary embodiment of the present disclosure. Figure 8A and Figure 8B is an exemplary view showing the 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 focusing adjustment function of the camera module 100 may be achieved by moving the second lens barrel 120 in the optical axis direction (Z-axis direction), and the image stabilization function may be achieved 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) may be used as rotation axes to rotate the optical path converter 130. When the optical path converter 130 rotates about the first axis (Y-axis) and the second axis (X-axis), the distance between the optical path converter 130 and the first lens barrel 110 may be reduced. Therefore, in order to prevent a collision between the optical path converter 130 and the first lens barrel 110 during the rotation of the optical path converter 130, the first lens barrel 110 may be arranged to have a sufficient distance 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) may be used as rotation axes to rotate the optical path converter 130.

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

[0092] Although specific examples have been shown and described above, it will be apparent after understanding the present disclosure that various changes in form and detail may be made to these examples without departing from the spirit and scope of the claims and their equivalents. The examples described herein are to be understood in a descriptive sense only and not for the purpose of limitation. The description of the features or aspects in each example should be considered applicable to similar features or aspects in other examples. Appropriate results may still be achieved if the described techniques are performed in a different order, and / or if the components in the described system, architecture, device, or circuit are combined in a different manner and / or replaced or supplemented by other components or their equivalents. Therefore, the scope of the present disclosure is not defined by the specific embodiments, but by the claims and their equivalents, and all variations within the scope of the claims and their equivalents should be understood to be included in the present disclosure.

Claims

1. A camera module, comprising: A first lens group, including a plurality of lenses and fixedly disposed on the optical axis; And A second lens group, including a plurality of lenses and capable of moving in the optical axis direction, Wherein, the first lens group and the second lens group are sequentially arranged from the object side and are spaced apart from each other in the optical axis direction, and Wherein, the distance on the optical axis from the object side surface of the lens closest to the object side of the second lens group to the image side surface 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 surface of the lens closest to the object side of the first lens group to the image side surface of the lens closest to the image side of the first lens group.

2. The camera module according to claim 1, further comprising: An image sensor, disposed on the image side of the second lens group, Wherein, the second lens group is configured to be capable of moving between the first lens group and the image sensor in the optical axis direction.

3. The camera module according to claim 1, wherein, 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, wherein, The first lens group is accommodated in a first lens barrel, and the second lens group is accommodated in a second lens barrel.

5. The camera module according to claim 1, further comprising: An optical path converter, disposed on the object side of the first lens group.

6. The camera module according to claim 5, wherein, The optical path converter is configured to be capable of rotating 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, further comprising: A third lens group, including a plurality of lenses and capable of moving in the optical axis direction, Wherein, the third lens group is disposed on the image side of the second lens group.

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

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

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

11. A portable electronic device, comprising: A plurality of camera modules having different optical characteristics from each other, Wherein, the plurality of camera modules include the camera module according to any one of claims 1 to 9.

12. A camera module, comprising: A first lens group and a second lens group, the first lens group including some of the five or more lenses arranged in the optical axis direction, and the second lens group including the remaining lenses of the five or more lenses, Wherein, the second lens group is configured to be spaced apart from the first lens group in the optical axis direction and capable of moving relative to the first lens group in the optical axis direction, and The distance on the optical axis from the object side surface of the lens closest to the object side of the second lens group to the image side surface 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 surface of the lens closest to the object side of the first lens group to the image side surface of the lens closest to the image side of the first lens group.

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

14. The camera module according to claim 12, wherein, 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, further comprising: An optical path converter disposed on the object side of the first lens group.

16. The camera module according to claim 12, wherein, One or more of the five or more lenses include a D-shaped cut lens having a straight portion at its edge.

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

18. The camera module according to claim 12, further comprising: A first lens barrel in which the first lens group is mounted; A second lens barrel in which the second lens group is mounted; And A housing in which the first lens barrel and the second lens barrel are accommodated, wherein the first lens barrel has a plurality of rib surfaces coupled to the housing.

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

20. A portable electronic device, comprising: A plurality of camera modules having different optical characteristics from each other, wherein the plurality of camera modules include the camera module according to any one of claims 12 to 18.

Citation Information

Patent Citations

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