Camera module

Abstract

The camera module includes: a first lens group including lenses disposed in a direction of a first optical axis; a second lens group including lenses disposed in a direction of a second optical axis intersecting the first optical axis; a first optical path conversion unit configured to reflect light incident through the first lens group to the second lens group; an image sensor configured to convert light incident through the second lens group into an electrical signal, and having a third optical axis intersecting the second optical axis; a second optical path conversion unit configured to reflect light incident through the second lens group to the image sensor; and a first driving unit configured to drive at least one of the first optical path conversion unit, the second optical path conversion unit, and the image sensor. In the camera module, the first optical axis and the third optical axis are configured to form an acute angle.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims the benefit of priority from Korean Patent Application No. 10-2024-0047706 filed on April 9, 2024, in the Korean Intellectual Property Office, and Korean Patent Application No. 10-2023-0151177 filed on November 3, 2023, in the Korean Intellectual Property Office, the disclosures of which are incorporated herein in their entirety by reference for all purposes. Technical Field

[0003] The following description relates to a camera module. Background Art

[0004] Portable electronic devices include camera modules. For example, portable electronic devices such as, but not limited to, portable phones, laptops, and the like may generally include one or more camera modules. As photography and video recording using portable electronic devices become more common, there is a demand for improved camera module performance. However, since small portable terminals generally have a relatively thin thickness, it may be difficult to install a camera module with high performance and high resolution. For example, in order to reduce or miniaturize a telephoto camera module with a long focal length, the image sensor package should also be small. However, for high-resolution imaging and photography, an image sensor or image sensor package of sufficient size is required. Summary of the invention

[0005] The purpose of providing this summary is to introduce a selection of concepts in a concise form, and these concepts will be further described in the following detailed description. This summary is not intended to identify the key features or essential features of the claimed subject matter, nor is it intended to be used to help determine the scope of the claimed subject matter.

[0006] In general, the camera module includes: a first lens group including lenses arranged in the direction of a first optical axis; a second lens group including lenses arranged in the direction of a second optical axis intersecting the first optical axis; a first optical path conversion unit configured to reflect light incident through the first lens group to the second lens group; an image sensor configured to convert light incident through the second lens group into an electrical signal and having a third optical axis intersecting the second optical axis; a second optical path conversion unit disposed between the second lens group and the image sensor and configured to reflect light incident through the second lens group to the image sensor; and a first driving unit configured to drive at least one of the first optical path conversion unit and the image sensor, wherein the first optical axis and the third optical axis are configured to form an acute angle.

[0007] The first driving unit may be configured to move the first optical path conversion unit in a first direction crossing the first optical axis.

[0008] The first driving unit may be configured to move the first optical path conversion unit in a first direction intersecting the first optical axis and in a second direction intersecting the first optical axis.

[0009] The first driving unit may be configured to move the image sensor in a third direction crossing the third optical axis.

[0010] The first driving unit may be configured to move the image sensor in a third direction intersecting the third optical axis and in a fourth direction intersecting the third optical axis.

[0011] The camera module may further include a second driving unit configured to move the second lens group in a direction of the second optical axis.

[0012] The first optical path conversion unit may be configured to have a more positive refractive power.

[0013] The exit surface of the first optical path conversion unit may have a convex shape.

[0014] In general, the camera module includes: a first lens group, a first optical path conversion unit, a second lens group, a second optical path conversion unit and an image sensor arranged in sequence along an optical axis; and a first driving unit configured to drive the first optical path conversion unit in a direction intersecting the optical axis, wherein the image sensor is arranged to form an acute angle with an incident surface of the second optical path conversion unit.

[0015] The camera module may further include a second driving unit configured to drive the second lens group in the optical axis direction.

[0016] The second driving unit may include a ball bearing disposed between the second lens group and a housing accommodating the second lens group.

[0017] The first lens group may have positive refractive power.

[0018] The exit surface of the first optical path conversion unit may have a convex shape.

[0019] The first driving unit may be configured to drive the first optical path conversion unit in a first direction crossing the optical axis and in a second direction crossing the optical axis.

[0020] The second optical path conversion unit may be configured to include two or more reflective surfaces.

[0021] In general, the camera module includes: a first lens group including at least one lens arranged in the direction of a first optical axis; a second lens group arranged in the direction of a second optical axis intersecting the first optical axis; an image sensor; a first optical path conversion unit configured to reflect light incident through the first lens group to the second lens group; a second optical path conversion unit arranged between the second lens group and the image sensor and configured to reflect light incident through the second lens group to the image sensor; and a driving unit configured to move the first optical path conversion unit in a direction intersecting the first optical axis and configured to rotate the first optical path conversion unit based on the first optical axis.

[0022] The second lens of the second lens group may have positive refractive power, and the third lens of the second lens group may have negative refractive power.

[0023] Other features and aspects will be apparent from the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A configuration diagram of an exemplary camera module according to a first embodiment is shown.

[0025] FIG. 2A to FIG. 2C Shows Figure 1 Another form of the exemplary first optical path conversion unit shown in .

[0026] Figure 3 Shows Figure 1 The detailed structure of the exemplary second optical path conversion unit is shown in .

[0027] FIG. 4A to FIG. 4D is a configuration diagram according to an illustrative form of an exemplary first optical path conversion unit and an exemplary first driving unit.

[0028] Figure 5 is based on Figure 1 A configuration diagram of a modified example of the camera module shown in FIG.

[0029] Figure 6 is a diagram according to an exemplary configuration of a second lens group and a second driving unit.

[0030] Figure 7 A configuration diagram of an exemplary camera module according to a second embodiment is shown.

[0031] Fig. 8A and Figure 8B is a configuration diagram of an exemplary image sensor package and a first driving unit.

[0032] Fig. 9 Shown according to Figure 7 A configuration diagram of a modified example of the camera module shown in FIG.

[0033] Fig.10 is based on Fig. 9 A configuration diagram of an illustrative form of the second drive unit shown in FIG.

[0034] Fig.11 A configuration diagram of an exemplary camera module according to a third embodiment is shown.

[0035] FIG. 12A to FIG. 12D is a configuration diagram according to an illustrative form of a first optical path conversion unit and a first driving unit.

[0036] Fig.13A and Fig. 13B is a configuration diagram of an exemplary image sensor package and a first driving unit.

[0037] Fig.14 Shown according to Fig.11 A configuration diagram of a modified example of the camera module shown in FIG.

[0038] Fig.15 Shown according to Fig.14 A configuration diagram of an illustrative form of the second drive unit shown in FIG.

[0039] Throughout the drawings and detailed description, unless otherwise described, the same reference numerals refer to the same elements. For purposes of clarity, illustration, and convenience, the drawings may not be drawn to scale, and the relative sizes, proportions, and descriptions of elements in the drawings may be exaggerated. DETAILED DESCRIPTION

[0040] Provide the following specific implementation to help the reader obtain a comprehensive understanding of the method, device and / or system described herein. However, various changes, modifications and equivalents of the method, device and / or system described herein will be apparent after understanding the disclosure of the application. For example, the order in the operation described herein and / or the order of the operation described herein are only examples, and except for the order and / or the order of operations in the operation that must occur in a specific sequence, it is not limited to the order set forth in this article, but can be changed, which will be apparent after understanding the disclosure of the application. As another example, except for at least a portion of the order and / or the order of operations in the operation that must occur in a sequence (e.g., a specific sequence), the order in the order of operations and / or operations can be performed in parallel. In addition, for greater clarity and brevity, the description of the features known after understanding the disclosure of the application can be omitted.

[0041] Although terms such as "first", "second" and "third" or A, B, (a), (b) may be used herein to describe various members, components, regions, layers or portions, these members, components, regions, layers or portions are not limited by these terms. Each of these terms is not used to define, for example, the importance, sequence or order of the corresponding member, component, region, layer or portion, but is only used to distinguish the corresponding member, component, region, layer or portion from other members, components, regions, layers or portions. Therefore, without departing from the teachings of the examples described herein, the first member, first component, first region, first layer or first portion mentioned in these examples may also be referred to as the second member, second component, second region, second layer or second portion.

[0042] Throughout the specification, when a component, element or layer is described as being "on another component, element or layer," "connected to," "coupled to," or "engaged to" another component, element or layer, it may be directly "on another component, element or layer," directly "connected to," "coupled to," or "engaged to" another component, element or layer (e.g., in contact with another component, element or layer), or there may reasonably be one or more other components, elements or layers between the component, element or layer and the other component, element or layer. When a component, element or layer is described as being "directly on another component, element or layer," "directly connected to," "directly coupled to," or "directly engaged to" another component, element or layer, there are no other components, elements or layers between the component, element or layer and the other component, element or layer. Similarly, expressions such as "between" and "directly between," as well as "adjacent" and "directly adjacent" may also be interpreted as described above.

[0043] The terms used herein are only used to describe various examples and are not used to limit the present disclosure. Unless the context clearly indicates otherwise, the terms "one", "an" and "the" are intended to include plural forms as well. As non-limiting examples, the terms "comprise", "include" and "have" illustrate the existence of the described features, quantities, operations, components, elements and / or combinations thereof, but do not exclude the existence or addition of one or more other features, quantities, operations, components, elements and / or combinations thereof, or the existence of alternative features, quantities, operations, components, elements and / or combinations thereof. In addition, although an embodiment can set forth the terms "comprise", "include" and "have" to illustrate the existence of the described features, quantities, operations, components, elements and / or combinations thereof, other embodiments may exist, in which one or more of the described features, quantities, operations, components, elements and / or combinations thereof are not present.

[0044] As used herein, the term "and / or" includes any one of the associated listed items and any combination of any two or more items. The phrases "at least one of A, B, and C," etc. are intended to have a disjunctive meaning, and these phrases "at least one of A, B, and C," etc. also include examples in which one or more of A, B, and C may be present (e.g., any combination of one or more of A, B, and C), unless the corresponding description and implementation require that the enumeration (e.g., "at least one of A, B, and C") be interpreted as having a conjunctive meaning.

[0045] The features described herein may be embodied in different forms and should not be construed as being limited to the examples described herein. On the contrary, the examples described herein are provided only to illustrate some of the many possible ways of implementing the methods, devices and / or systems described herein that will be apparent after understanding the disclosure of the present application. In this article, the use of the wording "may" relative to an example or implementation (e.g., content that may be included or implemented with respect to an example or implementation) means that there is at least one example or implementation that includes or implements such a feature, and all examples or implementations are not limited thereto. The wording "example" or "implementation" used herein has the same meaning (e.g., the phrase "in one example" has the same meaning as "in one implementation", and "in one or more examples" has the same meaning as "in one or more implementations").

[0046] One or more embodiments may provide a camera module configured to be mounted on a small electronic device or a thin electronic device.

[0047] One or more embodiments may provide a camera module capable of high-resolution imaging and photographing (or image capturing) while being mounted on a thin portable terminal.

[0048] The camera module according to one or more embodiments may be mounted on an electronic device. In an example, the camera module may be mounted on a portable terminal, a laptop, a virtual reality (VR) device, glasses, etc. However, the electronic device on which the camera module may be mounted is not limited to the above-mentioned devices. As an example, the camera module may be mounted on any portable electronic device such as a portable game console.

[0049] The camera module according to the first aspect may include a first lens group, a second lens group, a first optical path conversion unit, a second optical path conversion unit, an image sensor, and a first driving unit. In the camera module according to the first aspect, the first lens group may include one or more lenses. For example, the first lens group may include one or more lenses arranged along the first optical axis. In the camera module according to the first aspect, the second lens group may include one or more lenses. For example, the second lens group may include one or more lenses arranged along the second optical axis. In this example, the second optical axis may be in a direction intersecting the first optical axis. In the camera module according to the first aspect, the first optical path conversion unit may be configured to reflect light incident through the first lens group to the second lens group. In the camera module according to the first aspect, the second optical path conversion unit may be configured to reflect light incident through the second lens group to the image sensor. For example, the second optical path conversion unit may reflect light incident along the second optical axis of the second lens group toward a third optical axis of the image sensor. In this example, the third optical axis may be configured to form an acute angle with the first optical axis. In the camera module according to the first aspect, the first driving unit may drive one or more of the first optical path conversion unit and the image sensor.

[0050] The camera module according to the second aspect may include a first lens group, a second lens group, a first optical path conversion unit, a second optical path conversion unit, an image sensor, and a first driving unit. In the camera module according to the second aspect, the first lens group, the first optical path conversion unit, the second lens group, the second optical path conversion unit, and the image sensor may be arranged in sequence along the optical axis. In addition, in the camera module according to the second aspect, the image sensor may be arranged to form an acute angle with respect to an incident surface of the second optical path conversion unit.

[0051] Hereinafter, various embodiments will be described with reference to the accompanying drawings.

[0052] First, refer to Figures 1 to 4D An exemplary camera module according to a first embodiment is described.

[0053] The camera module 10 according to the first embodiment may include a first lens group 100, a first optical path conversion unit 200, a second lens group 300, a second optical path conversion unit 400, and an image sensor package 500. However, the configuration of the camera module 10 according to the first embodiment is not limited to the above elements. As an example, the camera module 10 may further include a first driving unit 600 that drives the first optical path conversion unit 200.

[0054] The first lens group 100, the first optical path conversion unit 200, the second lens group 300, the second optical path conversion unit 400, and the image sensor package 500 may be sequentially arranged along the optical axis. In an example, the first optical path conversion unit 200 may be disposed on the image side of the first lens group 100, the second lens group 300 may be disposed on the image side of the first optical path conversion unit 200, the second optical path conversion unit 400 may be disposed on the image side of the second lens group 300, and the image sensor package 500 may be disposed on the image side of the second optical path conversion unit 400.

[0055] The first lens group 100 may include one or more lenses arranged in sequence along the first optical axis C1. For example, the first lens group 100 may include a first lens having a refractive power. However, the number of lenses constituting the first lens group 100 is not limited to one lens. The first lens group 100 or the first lens may have a predetermined refractive power. For example, the first lens group 100 or the first lens may have a positive refractive power. The first lens group 100 or the first lens may have an overall meniscus shape. For example, the object side surface of the first lens disposed at the frontmost position in the first lens group 100 may be convex, and the image side surface of the lens disposed at the rearmost position in the first lens group 100 may be concave. The first lens group 100 may include lenses of a predetermined size. For example, the maximum diameter of the first lens disposed at the frontmost position in the first lens group 100 may be greater than the maximum length (horizontal length or vertical length of the incident surface) of the first optical path conversion unit 200.

[0056] The first optical path conversion unit 200 may be configured to reflect light incident along the first optical axis C1 of the first lens group 100 on the second optical axis C2 of the second lens group 300. For example, the first optical path conversion unit 200 may be configured in the form of a prism that totally reflects light incident along the first optical axis C1 in the direction of the second optical axis C2. However, the form of the first optical path conversion unit 200 is not limited to a prism. For example, the first optical path conversion unit 200 may be changed to a reflecting mirror.

[0057] The first optical path conversion unit 200 may be configured as follows FIG. 2A to FIG. 2C The unique shape shown in .

[0058] As an example, the first optical path conversion unit 200 may be configured to have a positive refractive power. As a detailed example, the first optical path conversion unit 202 according to the first variation may have a configuration as follows: Figure 2AThe convex shape of the exit surface 230 shown in FIG. The convex shape of the exit surface 230 can be formed by integrally combining a conventional prism and a plano-convex lens, or by integrally molding a prism and a plano-convex lens. As another example, the first optical path conversion unit 200 can be configured so that the incident surface 210 and the exit surface 230 or the exit surface 230 can be configured to have different areas.

[0059] As a detailed example, in the first optical path conversion unit 204 according to the second variation, as shown in FIG. Figure 2B As shown in , the exit surface 230 may be formed to extend longitudinally along the direction of the first optical axis C1, so that the incident surface 210 has an area larger than that of the exit surface 230. As another example, Figure 2C As shown in , the first light path conversion unit 206 may be formed in a manner that an edge or a corner of the exit surface 230 is chamfered.

[0060] The second lens group 300 may include one or more lenses arranged in sequence along the second optical axis C2. As an example, the second lens group 300 may include a second lens and a third lens arranged in sequence along the second optical axis C2. The second lens and the third lens may have positive refractive power or negative refractive power, respectively. As a detailed example, the second lens may have positive refractive power and the third lens may have negative refractive power. However, the number of lenses constituting the second lens group 300 and the refractive power of the lenses are not limited to the above forms. For example, the second lens group 300 may be composed of three or more lenses.

[0061] The second optical path conversion unit 400 may be configured to reflect light incident along the second optical axis C2 to the image sensor of the image sensor package 500. For example, the second optical path conversion unit 400 may include two or more reflective surfaces so that light incident along the second optical axis C2 may be incident along a third optical axis C3 of the image sensor.

[0062] Will refer to Figure 3 The second optical path conversion unit 400 according to one aspect is described in detail.

[0063] The second optical path conversion unit 400 may include an incident surface 410, a first reflective surface 420, and a second reflective surface 430. The second optical path conversion unit 400 may have a reflective surface and an exit surface formed integrally. For example, the first reflective surface 420 of the second optical path conversion unit 400 may be a reflective surface on which light is reflected and an exit surface on which light is emitted.

[0064] The second optical path conversion unit 400 may be configured to obtain both total reflection and specular reflection of light. As an example, the first reflection surface 420 of the second optical path conversion unit 400 may be configured to provide total reflection of light, and the second reflection surface 430 of the second optical path conversion unit 400 may be configured to provide specular reflection light. As a detailed example, the first incident angle θ1 of the first reflection surface 420 is greater than the critical angle of the first reflection surface 420, and the second incident angle θ2 of the second reflection surface 430 may be less than the critical angle of the second reflection surface 430. The first reflection surface 420 and the second reflection surface 430 may be arranged in a predetermined shape. For example, the angle θ between the first reflection surface 420 and the second reflection surface 430 may be 16 degrees to 32 degrees. As a detailed example, the angle θ between the first reflection surface 420 and the second reflection surface 430 may be 30 degrees or 18 degrees.

[0065] The second optical path conversion unit 400 may be configured to provide multiple internal reflections. In detail, the second optical path conversion unit 400 may be configured to perform an even number of internal reflections. For example, the second optical path conversion unit 400 may be configured to perform two or four internal reflections. The number of internal reflections (N) of the second optical path conversion unit 400 and the angle θ between the first reflective surface 420 and the second reflective surface 430 may satisfy the following conditional expression.

[0066] θ=90 / (2n+1), 2n=N

[0067] In the above conditional expressions, n is a positive integer. For example, when the number of internal reflections of the second optical path conversion unit 400 is 2, the angle θ is 30 degrees. As another example, when the number of internal reflections of the second optical path conversion unit 400 is 4, the angle θ is 18 degrees. The number of internal reflections of the second optical path conversion unit 400 may be 6 or greater. However, it is more preferred that the number of internal reflections of the second optical path conversion unit 400 does not exceed 4. To further explain, in an example where the number of internal reflections of the second optical path conversion unit 400 is increased to 6 or greater, the incident angle θ is reduced to 12.9 degrees or less, and the amount of light incident on the second optical path conversion unit 400 is also reduced. Therefore, the problem of rapid degradation of the resolution of the camera module may occur. Therefore, it is more preferred that the number of internal reflections of the second optical path conversion unit 400 is 2 or 4.

[0068] The image sensor package 500 may be configured to include an image sensor (not shown). For example, the image sensor may be disposed on one side of the image sensor package 500 to convert light incident through the second optical path conversion unit 400 into an electrical signal. The image sensor package 500 may be disposed to face one side of the second optical path conversion unit 400. As an example, the image sensor package 500 may be disposed to face the first reflective surface 420 of the second optical path conversion unit 400.

[0069] The first driving unit 600 may be configured to enable optical image stabilization (OIS) of the camera module 10. In the present embodiment, the first driving unit 600 may be configured to move the first optical path conversion unit 200 in a direction intersecting the first optical axis C1. As an example, the first driving unit 600 may be configured to move the first optical path conversion unit 200 in a first direction and a second direction intersecting the first optical axis C1. As another example, the first driving unit 600 may be configured to move the first optical path conversion unit 200 in a first direction intersecting the first optical axis C1, and rotate the first optical path conversion unit 200 based on the first optical axis C1.

[0070] Will refer to FIG. 4A to FIG. 4D The combined structure of the first optical path conversion unit 200 and the first driving unit 600 is described in detail.

[0071] like Figure 4A As shown in , the first driving unit 600 may be configured to partially contact or couple with the first optical path conversion unit 200. For example, the first driving unit 600 may be configured to support at least one of a reflective surface and a side surface of the first optical path conversion unit 200.

[0072] like Figure 4B and Figure 4C As shown in , the first drive unit 600 may include a movable body 610, a first drive portion 620, and a second drive portion 630. However, the configuration of the first drive unit 600 is not limited to the above-mentioned components. For example, the first drive unit 600 may further include ball bearings 642 and 644 to enable smooth movement of the first optical path conversion unit 200 or the movable body 610. As another example, the first drive unit 600 may further include Hall sensors 652 and 654 for detecting the position of the movable body 610.

[0073] The movable body 610 may be composed of a plurality of components or elements. As an example, the movable body 610 may be composed of a first movable body 612 and a second movable body 614. However, the configuration of the movable body 610 is not limited to the first movable body 612 and the second movable body 614. For example, the movable body 610 may be composed of three or four components as needed. The first movable body 612 may be configured to support the first optical path conversion unit 200. As an example, a receiving portion 6122 on which the first optical path conversion unit 200 may be placed may be formed in the first movable body 612. The second movable body 614 may be configured to support the first movable body 612. The second movable body 614 may be disposed in the housing 12 of the camera module 10. For example, the second movable body 614 may be disposed on the inner bottom of the housing 12. The first movable body 612 and the second movable body 614 may be configured to rotate or move, respectively. As an example, the first movable body 612 is configured to rotate or move in one direction while being coupled to the second movable body 614 , and the second movable body 614 may be configured to rotate or move in a different direction while being disposed in the housing 12 .

[0074] The first driving part 620 may be configured to drive the first movable body 612. For example, the first driving part 620 may rotate the first movable body 612 in a direction intersecting the first optical axis C1 and the second optical axis C2. The first driving part 620 may include a first driving magnet 622 and a first driving coil 624. However, the configuration of the first driving part 620 is not limited to the above-mentioned components. The first driving magnet 622 may be formed in the first movable body 612. For example, the first driving magnet 622 may be formed on a rear surface of the first movable body 612 facing one surface of the housing 12. The first driving coil 624 may be formed in the housing 12. For example, the first driving coil 624 may be formed on the inner side surface of the housing 12 facing the first driving magnet 622. The first driving magnet 622 and the first driving coil 624 arranged in this manner may rotate or drive the first movable body 612 in one direction based on the magnetic force generated in the first driving magnet 622 and the first driving coil 624. In an example, the first driving coil 624 may include a plurality of coils.

[0075] The second driving part 630 may be configured to drive the second movable body 614. For example, the second driving part 630 may rotate the second movable body 614 around the first optical axis C1. The second driving part 630 may include a second driving magnet 632 and a second driving coil 634. However, the configuration of the second driving part 630 is not limited to the above-mentioned components. The second driving magnet 632 may be formed in the second movable body 614. For example, the second driving magnet 632 may be formed on the lower surface of the bottom of the second movable body 614 facing the shell 12. The second driving coil 634 may be formed in the shell 12. For example, the second driving coil 634 may be formed on the bottom of the shell 12 facing the second driving magnet 632. The second driving magnet 632 and the second driving coil 634 arranged in this manner can rotate or drive the second movable body 614 in one direction by the magnetic force generated between the second driving magnet 632 and the second driving coil 634.

[0076] The ball bearings 642 and 644 may be configured to enable smooth operation of the first movable body 612 and the second movable body 614. As an example, the first ball bearing 642 may be disposed between the first movable body 612 and the second movable body 614, and the second ball bearing 644 may be disposed between the second movable body 614 and the housing 12. For reference, grooves 612h, 614h, and 12h for receiving the ball bearings 642 and 644 may be formed in the first movable body 612, the second movable body 614, and the housing 12, respectively. On the other hand, in an example, at least some of the grooves 612h, 614h, and 12h may have a polygonal cross-sectional shape instead of a circular shape to significantly reduce a contact area with the ball bearings 642 and 644.

[0077] The Hall sensors 652 and 654 may be configured to detect the positions of the first movable body 612 and the second movable body 614. For example, the first Hall sensor 652 may be disposed between the coils of the first drive coil 624, or disposed adjacent to the first drive coil 624, and configured to detect the movement of the first movable body 612, and the second Hall sensor 654 may be disposed on one side of the second drive coil 634, and configured to detect the movement of the second movable body 614. However, the arrangement of the Hall sensors 652 and 654 is not limited to the above-mentioned positions.

[0078] The first driving unit 600 may further include a component that prevents the first movable body 612 from separating. For example, the first driving unit 600 may include a pair of magnetic bodies 662 and 664 configured to generate an attractive force between the first movable body 612 and the second movable body 614. The first magnetic body 662 may be disposed on one side of the first movable body 612 (see Figure 4C and Figure 4D ), and the second magnetic body 664 may be disposed on one side of the second movable body 614 (see Figure 4B and Figure 4D ). The magnetic bodies 662 and 664 configured in this manner can suppress the separation of the first movable body 612 and the second movable body 614 by the mutual attraction of the magnetic bodies 662 and 664.

[0079] In the camera module 10 configured as above, a straight optical path can be concentrated in a limited space by the first optical path conversion unit 200 and the second optical path conversion unit 400. In addition, since the camera module 10 according to the present embodiment can perform optical image stabilization based on the first driving unit 600, high-resolution implementation is possible. In addition, in the camera module 10 according to the present embodiment, the image sensor package 500 can be widely arranged along the diagonal direction of the second optical path conversion unit 400, and therefore, a large image sensor and electronic components necessary for high-resolution implementation can be easily installed.

[0080] Next, we will refer to Figure 5 and Figure 6 Another form of the exemplary camera module according to the first embodiment is described. For reference, in the exemplary camera module 20 according to this form, the same components as those in the above-mentioned embodiment are basically denoted by the same reference numerals as those in the above-mentioned embodiment, and detailed description of these components will be omitted.

[0081] The camera module 20 according to this form may be different from the camera module 10 according to the above embodiment in that the camera module 20 further includes a second driving unit 700. In detail, the camera module 20 according to this embodiment may further include a second driving unit 700 that drives the second lens group 300 in the direction of the second optical axis C2.

[0082] Will refer to Figure 6 The configuration of the second driving unit 700 is described.

[0083] The second driving unit 700 may include a movable body 710, a driving magnet 720, a driving coil 730, a detection sensor 740, and a circuit board 750. However, the configuration of the second driving unit 700 is not limited to the above components. For example, the second driving unit 700 may further include a ball bearing 760.

[0084] The movable body 710 may be disposed inside the housing 22. For example, the movable body 710 may be disposed while maintaining a predetermined distance from the bottom of the housing 22, or may be disposed to partially contact the bottom of the housing 22. The movable body 710 may be configured to accommodate the second lens group 300. For example, a receiving portion 712 may be formed in the movable body 710 to accommodate the second lens group 300. The movable body 710 may be configured to move in the direction of the second optical axis C2. Further explained, the movable body 710 may move along the second optical axis C2 while being combined with the second lens group 300. For reference, a ball bearing 760 may be disposed between the movable body 710 and the housing 22 to allow the movable body 710 to move smoothly. More specifically, the ball bearing 760 may be disposed between the groove 22h of the housing 22 and the groove 714h of the movable body 710.

[0085] The driving magnet 720 and the driving coil 730 may be formed in the movable body 710 and the housing 22, respectively. For example, the driving magnet 720 may be formed on both sides of the movable body 710, and the driving coil 730 may be disposed in the through hole 22c of the housing 22 using the circuit board 750 as a medium. The driving magnet 720 and the driving coil 730 may be disposed to face each other. The driving magnet 720 and the driving coil 730 configured in this manner may move the second lens group 300 and the movable body 710. For example, the driving magnet 720 and the driving coil 730 may move the second lens group 300 and the movable body 710 in the direction of the second optical axis C2. For reference, the driving magnet 720 may preferably be formed to be elongated in the direction of the second optical axis C2 so that the driving magnet 720 may interact with the driving coil 730 even at a changed position of the movable body 710.

[0086] The camera module 20 configured as above includes all the features of the above-described camera module 10 , and has a feature of being able to adjust the focal length of the camera module through the second driving unit 700 .

[0087] Will refer to Figures 7 to 8B An exemplary camera module according to the second embodiment is described.

[0088] The exemplary camera module 30 according to the second embodiment may include a first lens group 100, a first optical path conversion unit 200, a second lens group 300, a second optical path conversion unit 400, and an image sensor package 500. However, the configuration of the exemplary camera module 30 according to the second embodiment is not limited to the above components. As an example, the camera module 30 may further include a first driving unit 800 that drives the second optical path conversion unit 400.

[0089] The first lens group 100, the first optical path conversion unit 200, the second lens group 300, the second optical path conversion unit 400, and the image sensor package 500 may be arranged in sequence along the optical axis. For example, the first optical path conversion unit 200 may be disposed on the image side of the first lens group 100, the second lens group 300 may be disposed on the image side of the first optical path conversion unit 200, the second optical path conversion unit 400 may be disposed on the image side of the second lens group 300, and the image sensor package 500 may be disposed on the image side of the second optical path conversion unit 400.

[0090] The first lens group 100 may include one or more lenses arranged in sequence along the first optical axis C1. For example, the first lens group 100 may include a first lens having a refractive power. However, the number of lenses constituting the first lens group 100 is not limited to one lens. The first lens group 100 or the first lens may have a predetermined refractive power. For example, the first lens group 100 or the first lens may have a positive refractive power. The first lens group 100 or the first lens may have an overall meniscus shape. For example, the object side surface of the first lens disposed at the frontmost position in the first lens group 100 may be convex, and the image side surface of the lens disposed at the rearmost position in the first lens group 100 may be concave. The first lens group 100 may include lenses of a predetermined size. For example, the maximum diameter of the first lens disposed at the frontmost position in the first lens group 100 may be greater than the maximum length (horizontal length or vertical length of the incident surface) of the first optical path conversion unit 200.

[0091] The first optical path conversion unit 200 may be configured to reflect light incident along the first optical axis C1 of the first lens group 100 in the direction of the second optical axis C2 of the second lens group 300. For example, the first optical path conversion unit 200 may be configured in the form of a prism that totally reflects light incident along the first optical axis C1 in the direction of the second optical axis C2. However, the form of the first optical path conversion unit 200 is not limited to a prism. For example, the first optical path conversion unit 200 may be changed to a reflecting mirror.

[0092] The first optical path conversion unit 200 may be configured in the same or similar form as that of the first optical path conversion unit according to the first embodiment. FIG. 2A to FIG. 2C Instead of the shape shown in Figure 7 The shapes shown in .

[0093] The second lens group 300 may include one or more lenses arranged in sequence along the second optical axis C2. As an example, the second lens group 300 may include a second lens and a third lens arranged in sequence along the second optical axis C2. The second lens and the third lens may have positive refractive power or negative refractive power, respectively. As a detailed example, the second lens may have positive refractive power and the third lens may have negative refractive power. However, the number and refractive power of the lenses constituting the second lens group 300 are not limited to the above forms. In an example, the second lens group 300 may be composed of three or more lenses.

[0094] The second optical path conversion unit 400 may be configured to reflect light incident along the second optical axis C2 to the image sensor of the image sensor package 500. For example, the second optical path conversion unit 400 may include two or more reflection surfaces so that the light incident along the second optical axis C2 may be incident along the third optical axis C3 of the image sensor. Figure 3 The form and characteristics of the second optical path conversion unit of the first embodiment shown in are substantially the same as or similar to those of the second optical path conversion unit of the first embodiment.

[0095] The image sensor package 500 may be configured to include an image sensor (not shown). In an example, the image sensor may be disposed on one surface of the image sensor package 500 to convert light incident through the second optical path conversion unit 400 into an electrical signal. The image sensor package 500 may be disposed to face one surface of the second optical path conversion unit 400. As an example, the image sensor package 500 may be disposed to face the first reflective surface of the second optical path conversion unit 400.

[0096] The first driving unit 800 may be configured to enable optical image stabilization (OIS) of the camera module 30. In the present embodiment, the first driving unit 800 may be configured to move the image sensor package 500 or the image sensor 510 in a direction intersecting the third optical axis C3 (see Fig. 8A ).

[0097] Will refer to Fig. 8A and Figure 8B A combined structure of the image sensor package 500 and the first driving unit 800 is described.

[0098] The first driving unit 800 may be formed in the image sensor package 500. As an example, the first driving unit 800 may be formed in a partial region of the image sensor package 500, or may be formed integrally with the image sensor package 500. As another example, the first driving unit 800 may be configured to accommodate the image sensor package 500. The first driving unit 800 may include a movable body 812, a fixed body 814, a first driving portion 820, and a second driving portion 830. However, the configuration of the first driving unit 800 is not limited to the above-mentioned components.

[0099] The movable body 812 may be configured to be combined with the image sensor package 500 or the image sensor 510. For example, the movable body 812 may be coupled to the image sensor package 500, or may be configured to accommodate the image sensor 510. The movable body 812 may be configured to be electrically connected to the image sensor package 500 or the image sensor 510. In an example, the movable body 812 may be configured in the form of a printed circuit board. However, the form of the movable body 812 is not limited to the printed circuit board. The fixed body 814 may be configured to accommodate the movable body 812. For example, the receiving portion 8142 may be formed inside the fixed body 814 to accommodate the movable body 812 and the image sensor package 500. Like the movable body 812, the fixed body 814 may be configured to be electrically connected to the image sensor package 500 or the image sensor 510. In an example, the fixed body 814 may be configured in the form of a printed circuit board. However, the form of the fixed body 814 is not limited to the printed circuit board.

[0100] The first driving part 820 may include a first driving magnet 822 and a first driving coil 824. However, the configuration of the first driving part 820 is not limited to the above-mentioned components. The first driving magnet 822 and the first driving coil 824 may be arranged to face each other or be adjacent to each other. In an example, the first driving magnet 822 may be formed in the movable body 812, and the first driving coil 824 may be formed in the fixed body 814. In another example, the first driving magnet 822 may be formed on the fixed body 814, and the first driving coil 824 may be formed on the movable body 812. The first driving part 820 configured in this manner can move the image sensor 510 or the image sensor package 500 in a first direction intersecting the third optical axis C3 based on the magnetic force generated between the first driving magnet 822 and the first driving coil 824.

[0101] The second driving part 830 may include a second driving magnet 832 and a second driving coil 834. However, the configuration of the second driving part 830 is not limited to the above-mentioned components. The second driving magnet 832 and the second driving coil 834 may be arranged to face each other, or may be adjacent to each other. For example, the second driving magnet 832 may be formed in the movable body 812, and the second driving coil 834 may be formed in the fixed body 814. As another example, the second driving magnet 832 may be formed on the fixed body 814, and the second driving coil 834 may be formed on the movable body 812. The second driving part 830 configured in this manner can move the image sensor 510 or the image sensor package 500 in a second direction intersecting the third optical axis C3 based on the magnetic force generated between the second driving magnet 832 and the second driving coil 834.

[0102] For reference, the driving parts 820 and 830 according to the present embodiment are each composed of a driving magnet and a driving coil, but the configuration of the driving parts 820 and 830 may be changed within a range in which the movable body 812 moves in a direction intersecting the third optical axis C3. For example, in a modified form of the embodiment, the driving parts 820 and 830 may be changed to a shape memory alloy, a piezoelectric member, or the like.

[0103] The camera module 30 configured as above can realize a telephoto imaging optical system with a long focal length. In addition, the camera module 30 according to the present embodiment can directly or indirectly adjust the position of the image sensor 510 that forms the image through the first driving unit 800, thereby performing more accurate and rapid optical image stabilization. In addition, in the camera module 30 according to the present embodiment, the image sensor package 500 can be widely arranged along the diagonal direction of the second optical path conversion unit 400, and therefore, a large image sensor and electronic components necessary for high-resolution realization can be easily installed.

[0104] Next, we will refer to Fig. 9 and Fig.10 A modified form of the camera module according to the second embodiment is described. For reference, in the camera module 40 according to this form, the same components as those in the above embodiment are basically denoted by the same reference numerals as those in the above embodiment, and detailed description of these components will be omitted.

[0105] The camera module 40 according to this form may be different from the camera module 30 according to the above embodiment in that the camera module 40 further includes a second driving unit 700. In detail, the camera module 40 according to this form may further include a second driving unit 700 that drives the second lens group 300 in the direction of the second optical axis C2.

[0106] Will refer to Fig.10 The configuration of the second driving unit 700 is described.

[0107] The second driving unit 700 may include a movable body 710, a driving magnet 720, a driving coil 730, a detection sensor 740, and a circuit board 750. However, the configuration of the second driving unit 700 is not limited to the above components. For example, the second driving unit 700 may further include a ball bearing 760.

[0108] The movable body 710 may be disposed inside the housing 42. For example, the movable body 710 may be disposed while maintaining a predetermined distance from the bottom of the housing 42, or may be disposed to partially contact the bottom of the housing 42. The movable body 710 may be configured to accommodate the second lens group 300. For example, a receiving portion 712 may be formed in the movable body 710 to accommodate the second lens group 300. The movable body 710 may be configured to move in the direction of the second optical axis C2. Specifically, the movable body 710 may move along the second optical axis C2 while being combined with the second lens group 300. In an example, a ball bearing 760 may be disposed between the movable body 710 and the housing 42 to allow the movable body 710 to move smoothly. More specifically, the ball bearing 760 may be disposed between the groove 42h of the housing 42 and the groove 714h of the movable body 710.

[0109] The driving magnet 720 and the driving coil 730 may be formed in the movable body 710 and the housing 42, respectively. For example, the driving magnet 720 may be formed on both sides of the movable body 710, and the driving coil 730 may be disposed in the through hole 42c of the housing 42 using the circuit board 750 as a medium. The driving magnet 720 and the driving coil 730 may be disposed to face each other. The driving magnet 720 and the driving coil 730 configured in this manner may move the second lens group 300 and the movable body 710. For example, the driving magnet 720 and the driving coil 730 may move the second lens group 300 and the movable body 710 in the direction of the second optical axis C2. In an example, the driving magnet 720 may preferably be formed to be elongated in the direction of the second optical axis C2 so that the driving magnet 720 may interact with the driving coil 730 even in the changed position of the movable body 710.

[0110] The camera module 40 configured as above includes all the features of the above-described camera module 30 , and has a feature capable of adjusting the focal length of the camera module based on the operation of the second driving unit 700 .

[0111] Next, we will refer to Figures 11 to 13B A camera module according to a third embodiment is described.

[0112] The camera module 50 according to the third embodiment may include a first lens group 100, a first optical path conversion unit 200, a second lens group 300, a second optical path conversion unit 400, and an image sensor package 500. However, the configuration of the camera module 50 according to the third embodiment is not limited to the above-mentioned components or elements. As an example, the camera module 50 may further include a first driving unit 800 that drives the second optical path conversion unit 400.

[0113] The first lens group 100, the first optical path conversion unit 200, the second lens group 300, the second optical path conversion unit 400, and the image sensor package 500 may be arranged in sequence along the optical axis. For example, the first optical path conversion unit 200 may be disposed on the image side of the first lens group 100, the second lens group 300 may be disposed on the image side of the first optical path conversion unit 200, the second optical path conversion unit 400 may be disposed on the image side of the second lens group 300, and the image sensor package 500 may be disposed on the image side of the second optical path conversion unit 400.

[0114] The first lens group 100 may include one or more lenses arranged in sequence along the first optical axis C1. In an example, the first lens group 100 may include a first lens having a refractive power. However, the number of lenses constituting the first lens group 100 is not limited to one lens. The first lens group 100 or the first lens may have a predetermined refractive power. For example, the first lens group 100 or the first lens may have a positive refractive power. The first lens group 100 or the first lens may have an overall meniscus shape. For example, the object side surface of the first lens disposed at the frontmost position in the first lens group 100 may be convex, and the image side surface of the lens disposed at the rearmost position in the first lens group 100 may be concave. The first lens group 100 may include lenses of a predetermined size. For example, the maximum diameter of the first lens disposed at the frontmost position in the first lens group 100 may be greater than the maximum length (horizontal length or vertical length of the incident surface) of the first optical path conversion unit 200.

[0115] The first optical path conversion unit 200 may be configured to reflect light incident along the first optical axis C1 of the first lens group 100 in the direction of the second optical axis C2 of the second lens group 300. For example, the first optical path conversion unit 200 may be configured in the form of a prism that totally reflects light incident along the first optical axis C1 in the direction of the second optical axis C2. However, the form of the first optical path conversion unit 200 is not limited to a prism. For example, the first optical path conversion unit 200 may be changed to a reflecting mirror.

[0116] The first optical path conversion unit 200 may be configured in the same or similar form as that of the first optical path conversion unit according to the first embodiment. FIG. 2A to FIG. 2C Instead of the shape shown in Fig.11 The shapes shown in .

[0117] The second lens group 300 may include one or more lenses arranged in sequence along the second optical axis C2. As an example, the second lens group 300 may include a second lens and a third lens arranged in sequence along the second optical axis C2. The second lens and the third lens may have positive refractive power or negative refractive power, respectively. As a detailed example, the second lens may have positive refractive power and the third lens may have negative refractive power. However, the number of lenses constituting the second lens group 300 and the refractive power of the lenses are not limited to the above forms. In an example, the second lens group 300 may be composed of three or more lenses.

[0118] The second optical path conversion unit 400 may be configured to reflect light incident along the second optical axis C2 to the image sensor of the image sensor package 500. For example, the second optical path conversion unit 400 may include two or more reflection surfaces so that the light incident along the second optical axis C2 may be incident along the third optical axis C3 of the image sensor. Figure 3 The form and characteristics of the second optical path conversion unit of the first embodiment shown in are substantially the same as or similar to those of the second optical path conversion unit of the first embodiment.

[0119] The image sensor package 500 may be configured to include an image sensor (see Fig.13A The image sensor package 500 may be disposed to face one surface of the second optical path conversion unit 400. As an example, the image sensor package 500 may be disposed to face a first reflective surface of the second optical path conversion unit 400.

[0120] The camera module 50 according to the third embodiment may include a plurality of first driving units 601 and 801 ( Fig.14 ). For example, the camera module 50 may include a first driving unit 601 that drives the first optical path conversion unit 200 and a first driving unit 801 that drives the image sensor package 500. The first driving units 601 and 801 may be configured to enable optical image stabilization (OIS) of the camera module 50. In an example, the camera module 50 according to the present embodiment may perform optical image stabilization based on the first driving unit 601. As another example, the camera module 50 according to the present embodiment may perform optical image stabilization through the first driving unit 801. As another example, the camera module 50 according to the present embodiment may perform optical image stabilization by driving the first driving unit 601 and the first driving unit 801 simultaneously or sequentially.

[0121] Will refer to FIG. 12A to FIG. 12D The first driving unit 601 is described.

[0122] like Fig. 12A As shown in , the first driving unit 601 may be configured to partially contact or couple with the first optical path conversion unit 200. For example, the first driving unit 601 may be configured to support at least one of a reflective surface and a side surface of the first optical path conversion unit 200.

[0123] like Fig. 12B and Fig. 12C As shown in , the first drive unit 601 may include a movable body 610, a first drive portion 620 and a second drive portion 630. However, the configuration of the first drive unit 601 is not limited to the above-mentioned components or elements. For example, the first drive unit 601 may also include ball bearings 642 and 644 to enable smooth movement of the first optical path conversion unit 200 or the movable body 610. As another example, the first drive unit 601 may also include Hall sensors 652 and 654 to detect the position of the movable body 610.

[0124] The movable body 610 may be composed of a plurality of components. As an example, the movable body 610 may be composed of a first movable body 612 and a second movable body 614. However, the configuration of the movable body 610 is not limited to the first movable body 612 and the second movable body 614. For example, the movable body 610 may be composed of three or four components as needed. The first movable body 612 may be configured to support the first optical path conversion unit 200. As an example, a receiving portion 6122 on which the first optical path conversion unit 200 may be placed may be formed in the first movable body 612. The second movable body 614 may be configured to support the first movable body 612. The second movable body 614 may be disposed in the housing 52 of the camera module 50. In an example, the second movable body 614 may be disposed on the inner bottom of the housing 52. The first movable body 612 and the second movable body 614 may be configured to rotate or move, respectively. As an example, the first movable body 612 is configured to rotate or move in one direction while being coupled to the second movable body 614 , and the second movable body 614 may be configured to rotate or move in a different direction while being in the housing 52 .

[0125] The first driving part 620 may be configured to drive the first movable body 612. For example, the first driving part 620 may rotate the first movable body 612 in a direction intersecting the first optical axis C1 and the second optical axis C2. The first driving part 620 may include a first driving magnet 622 and a first driving coil 624. However, the configuration of the first driving part 620 is not limited to the above-mentioned components or elements. The first driving magnet 622 may be formed in the first movable body 612. For example, the first driving magnet 622 may be formed on a rear surface of the first movable body 612 facing one surface of the housing 52. The first driving coil 624 may be formed in the housing 52. In an example, the first driving coil 624 may be formed on the inner side surface of the housing 52 facing the first driving magnet 622. The first driving magnet 622 and the first driving coil 624 arranged in this manner may rotate or drive the first movable body 612 in one direction by the magnetic force generated between the first driving magnet 622 and the first driving coil 624.

[0126] The second driving part 630 may be configured to drive the second movable body 614. For example, the second driving part 630 may rotate the second movable body 614 around the first optical axis C1. The second driving part 630 may include a second driving magnet 632 and a second driving coil 634. However, the configuration of the second driving part 630 is not limited to the above-mentioned components. The second driving magnet 632 may be formed in the second movable body 614. In an example, the second driving magnet 632 may be formed on the lower surface of the bottom of the second movable body 614 facing the shell 52. The second driving coil 634 may be formed in the shell 52. In an example, the second driving coil 634 may be formed on the bottom of the shell 52 facing the second driving magnet 632. The second driving magnet 632 and the second driving coil 634 arranged in this manner can rotate or drive the second movable body 614 in one direction by the magnetic force generated between the second driving magnet 632 and the second driving coil 634.

[0127] The ball bearings 642 and 644 may be configured to enable smooth operation of the first movable body 612 and the second movable body 614. As an example, the first ball bearing 642 may be disposed between the first movable body 612 and the second movable body 614, and the second ball bearing 644 may be disposed between the second movable body 614 and the housing 52. In an example, grooves 612h, 614h, and 52h that receive the ball bearings 642 and 644 may be formed in the first movable body 612, the second movable body 614, and the housing 52, respectively. On the other hand, at least some of the grooves 612h, 614h, and 52h may have a polygonal cross-sectional shape instead of a circular shape to significantly reduce a contact area with the ball bearings 642 and 644.

[0128] The Hall sensors 652 and 654 may be configured to detect the positions of the first movable body 612 and the second movable body 614. For example, the first Hall sensor 652 may be disposed between the coils of the first drive coil 624, or disposed adjacent to the first drive coil 624, and may be configured to detect the movement of the first movable body 612, and the second Hall sensor 654 may be disposed on one side of the second drive coil 634, and may be configured to sense the movement of the second movable body 614. However, the arrangement of the Hall sensors 652 and 654 is not limited to the above-mentioned positions.

[0129] The first driving unit 601 may further include a component that prevents the first movable body 612 from separating. For example, the first driving unit 601 may include a pair of magnetic bodies 662 and 664 configured to generate an attractive force between the first movable body 612 and the second movable body 614. The first magnetic body 662 may be disposed on one side of the first movable body 612 (see Fig. 12C and Fig.12D ), and the second magnetic body 664 may be disposed on one side of the second movable body 614 (see Fig. 12B and Fig.12D ). The magnetic bodies 662 and 664 configured in this manner can suppress the separation of the first movable body 612 and the second movable body 614 by attracting each other.

[0130] Will refer to Fig.13A and Fig. 13B The first driving unit 801 is described.

[0131] The first driving unit 801 may be formed in the image sensor package 500. In an example, the first driving unit 801 may be formed in a partial region of the image sensor package 500, or may be formed integrally with the image sensor package 500. In another example, the first driving unit 801 may be configured to accommodate the image sensor package 500. The first driving unit 801 may include a movable body 812, a fixed body 814, a first driving portion 820, and a second driving portion 830. However, the configuration of the first driving unit 801 is not limited to the above-mentioned components.

[0132] The movable body 812 can be configured to be combined with the image sensor package 500 or the image sensor 510. For example, the movable body 812 can be connected to the image sensor package 500, or can be configured to accommodate the image sensor 510. The movable body 812 can be configured to be electrically connected to the image sensor package 500 or the image sensor 510. For example, the movable body 812 can be configured in the form of a printed circuit board. However, the form of the movable body 812 is not limited to the printed circuit board. The fixed body 814 can be configured to accommodate the movable body 812. For example, the receiving portion 8142 can be formed inside the fixed body 814 to accommodate the movable body 812 and the image sensor package 500. Similar to the movable body 812, the fixed body 814 can be configured to be electrically connected to the image sensor package 500 or the image sensor 510. For example, the fixed body 814 can be configured in the form of a printed circuit board. However, the form of the fixed body 814 is not limited to the printed circuit board.

[0133] The first driving part 820 may include a first driving magnet 822 and a first driving coil 824. However, the configuration of the first driving part 820 is not limited to the above-mentioned components or elements. The first driving magnet 822 and the first driving coil 824 may be arranged to face each other or be adjacent to each other. In an example, the first driving magnet 822 may be formed in the movable body 812, and the first driving coil 824 may be formed in the fixed body 814. In another example, the first driving magnet 822 may be formed on the fixed body 814, and the first driving coil 824 may be formed on the movable body 812. The first driving part 820 configured in this manner can move the image sensor 510 or the image sensor package 500 in a first direction intersecting the third optical axis C3 based on the magnetic force generated between the first driving magnet 822 and the first driving coil 824.

[0134] The second driving part 830 may include a second driving magnet 832 and a second driving coil 834. However, the configuration of the second driving part 830 is not limited to the above-mentioned components or elements. The second driving magnet 832 and the second driving coil 834 may be arranged to face each other, or may be arranged to be adjacent to each other. In an example, the second driving magnet 832 may be formed in the movable body 812, and the second driving coil 834 may be formed in the fixed body 814. In another example, the second driving magnet 832 may be formed on the fixed body 814, and the second driving coil 834 may be formed on the movable body 812. The second driving part 830 configured in this manner can move the image sensor 510 or the image sensor package 500 in a second direction intersecting the third optical axis C3 based on the magnetic force generated between the second driving magnet 832 and the second driving coil 834.

[0135] In the example, the driving parts 820 and 830 according to the present embodiment may be composed of a driving magnet and a driving coil. However, this is only an example, and the configuration of the driving parts 820 and 830 may also be changed within the range of moving the movable body 812 in the direction intersecting the third optical axis C3. For example, in a modified form of the embodiment, the driving parts 820 and 830 may be changed to a shape memory alloy, a piezoelectric member, or the like.

[0136] The camera module 50 configured as above can realize a telephoto imaging optical system with a long focal length. In addition, in the camera module 50 according to the present embodiment, the plurality of first driving units 601 and 801 can simultaneously or selectively drive at least one or more of the first optical path conversion unit 200 and the image sensor package 500, thereby performing fast and fine optical image stabilization. In addition, in the camera module 50 according to the present embodiment, the image sensor package 500 can be arranged relatively wide in the diagonal direction of the second optical path conversion unit 400, and therefore, a large image sensor and electronic components necessary for high-resolution realization can be easily installed.

[0137] Next, we will refer to Fig.14 and Fig.15 Another form of the camera module according to the third embodiment is described.

[0138] In the example, in the camera module 60 according to this form, the same components as those in the above-described embodiment are basically denoted by the same reference numerals as those in the above-described embodiment, and detailed description of these components will be omitted.

[0139] The camera module 60 according to this form may be different from the camera module 50 according to the above embodiment in that the camera module 60 further includes a second driving unit 700. Specifically, the camera module 60 according to this form may further include a second driving unit 700 that drives the second lens group 300 in the direction of the second optical axis C2.

[0140] Will refer to Fig.15 The configuration of the second driving unit 700 is described.

[0141] The second driving unit 700 may include a movable body 710 , a driving magnet 720 , a driving coil 730 , a detection sensor 740 , and a circuit board 750 . However, the configuration of the second driving unit 700 is not limited to the above-mentioned components. In the example, the second driving unit 700 further includes a ball bearing 760 .

[0142] The movable body 710 may be disposed inside the housing 62. For example, the movable body 710 may be disposed while maintaining a predetermined distance from the bottom of the housing 62, or may be disposed to partially contact the bottom of the housing 62. The movable body 710 may be configured to accommodate the second lens group 300. In an example, a receiving portion 712 may be formed in the movable body 710 to accommodate the second lens group 300. The movable body 710 may be configured to move in the direction of the second optical axis C2. Specifically, the movable body 710 may move along the second optical axis C2 while being combined with the second lens group 300. In an example, a ball bearing 760 may be disposed between the movable body 710 and the housing 62 to allow the movable body 710 to move smoothly. Specifically, the ball bearing 760 may be disposed between the groove 62h of the housing 62 and the groove 714h of the movable body 710.

[0143] The driving magnet 720 and the driving coil 730 may be formed in the movable body 710 and the housing 62, respectively. For example, the driving magnet 720 may be formed on both sides of the movable body 710, and the driving coil 730 may be disposed in the through hole 62c of the housing 62 using the circuit board 750 as a medium. The driving magnet 720 and the driving coil 730 may be disposed to face each other. The driving magnet 720 and the driving coil 730 configured in this manner may move the second lens group 300 and the movable body 710. For example, the driving magnet 720 and the driving coil 730 may move the second lens group 300 and the movable body 710 in the direction of the second optical axis C2. For reference, the driving magnet 720 is preferably formed to be elongated in the direction of the second optical axis C2 so that the driving magnet 720 may interact with the driving coil 730 even in the changed position of the movable body 710.

[0144] The camera module 60 configured as above includes all the features of the above-described camera module 50 , and has a feature of being able to adjust the focal length of the camera module through the second driving unit 700 .

[0145] As set forth above, the camera module according to the embodiment may be mounted on a small portable terminal.

[0146] Furthermore, the camera module according to the embodiment is capable of high-resolution imaging and photographing while having a long focal length.

[0147] Although the present disclosure includes specific examples, it will be apparent after understanding the disclosure of the present application that various changes in form and detail may be made to these examples without departing from the spirit and scope of the claims and their equivalents. The examples described herein are understood in a descriptive sense only and not for limiting purposes. The description of the features or aspects in each example should be considered to be applicable to similar features or aspects in other examples. If the described techniques are performed in a different order, and / or if the components in the described system, architecture, device, or circuit are combined in a different manner and / or replaced or supplemented by other components or their equivalents, appropriate results can still be achieved.

[0148] Therefore, the scope of the present disclosure includes the claims and their equivalents in addition to the above disclosure and all the accompanying drawings, that is, all modifications within the scope of the claims and their equivalents should be construed as being included in the present disclosure.

Claims

1. Camera module, including: A first lens group includes one or more lenses arranged in the direction of a first optical axis; A second lens group includes one or more lenses arranged in the direction of a second optical axis intersecting the first optical axis; a first optical path conversion unit, configured to reflect light incident through the first lens group to the second lens group; an image sensor configured to convert light incident through the second lens group into an electrical signal and having a third optical axis intersecting the second optical axis; a second optical path conversion unit disposed between the second lens group and the image sensor and configured to reflect the light incident through the second lens group to the image sensor; as well as a first driving unit configured to drive at least one of the first optical path conversion unit and the image sensor, Wherein, the first optical axis and the third optical axis are configured to form an acute angle.

2. The camera module according to claim 1, wherein: The first driving unit is configured to move the first optical path conversion unit in a first direction intersecting the first optical axis.

3. The camera module according to claim 1, wherein: The first driving unit is configured to move the first optical path conversion unit in a first direction intersecting the first optical axis and in a second direction intersecting the first optical axis.

4. The camera module according to claim 1, wherein: The first driving unit is configured to move the image sensor in a third direction intersecting the third optical axis.

5. The camera module according to claim 1, wherein: The first driving unit is configured to move the image sensor in a third direction intersecting the third optical axis and a fourth direction intersecting the third optical axis. 6 . The camera module of claim 1 , further comprising a second driving unit configured to move the second lens group in the direction of the second optical axis.

7. The camera module according to claim 1, wherein: The first optical path conversion unit is configured to have positive refractive power.

8. The camera module according to claim 7, wherein: The exit surface of the first optical path conversion unit has a convex shape.

9. Camera module, including: A first lens group, a first optical path conversion unit, a second lens group, a second optical path conversion unit and an image sensor are sequentially arranged along the optical axis direction; as well as a first driving unit, configured to drive the first optical path conversion unit in a direction intersecting the optical axis, The image sensor is arranged to form an acute angle with the incident surface of the second optical path conversion unit, and Wherein, the first lens group includes one or more lenses, and the second lens group includes one or more lenses. 10 . The camera module of claim 9 , further comprising a second driving unit configured to drive the second lens group in the optical axis direction.

11. The camera module according to claim 10, wherein: The second driving unit includes a ball bearing disposed between the second lens group and a housing accommodating the second lens group.

12. The camera module according to claim 9, wherein: The first lens group has positive refractive power.

13. The camera module according to claim 9, wherein: The exit surface of the first optical path conversion unit has a convex shape.

14. The camera module according to claim 9, wherein: The first driving unit is configured to drive the first optical path conversion unit in a first direction intersecting the optical axis and in a second direction intersecting the optical axis.

15. The camera module according to claim 9, wherein: The second optical path conversion unit is configured to include two or more reflective surfaces.

16. Camera module, including: A first lens group includes at least one lens arranged in the direction of a first optical axis; a second lens group, arranged in the direction of a second optical axis intersecting the first optical axis and including one or more lenses arranged in the direction of the second optical axis; Image sensor; a first optical path conversion unit, configured to reflect light incident through the first lens group to the second lens group; a second optical path conversion unit, disposed between the second lens group and the image sensor, and configured to reflect light incident through the second lens group to the image sensor; as well as A driving unit configured to move the first optical path conversion unit in a direction intersecting the first optical axis and configured to rotate the first optical path conversion unit based on the first optical axis.

17. The camera module according to claim 16, wherein: The second lens of the second lens group has positive refractive power, and the third lens of the second lens group has negative refractive power.

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