Camera module, long-focus lens and electronic device

Abstract

The application discloses a camera module, a long-focus lens and electronic equipment, and belongs to the technical field of lens equipment. The camera module comprises a mounting portion, an incident portion, a first lens group, a second lens group and a light receiving portion which are sequentially mounted on the mounting portion along an incident direction of a light path, and further comprises a first light blocking portion. The first light blocking portion is mounted on a first side of the second lens group and is used for blocking a gap between the first side of the second lens group and an inner wall of the mounting portion. A first anti-reflection structure is arranged on a side wall of a side of the first light blocking portion close to the light receiving portion, and the first anti-reflection structure is used for dispersing light reflected from the light receiving portion to the side of the first light blocking portion close to the light receiving portion. The anti-reflection structure disperses the reflected light possibly generated on the side wall of the side of the first light blocking portion close to the light receiving portion, finally reduces the generation of stray light, and improves the quality and definition of a camera picture.

Description

Technical Field

[0001] This application relates to the field of lens equipment technology, and in particular to a camera module, a telephoto lens, and an electronic device. Background Technology

[0002] With the rapid development of mobile communication technology, smartphone camera functions are receiving increasing attention from users. To meet users' ever-increasing demands for image quality, the design and technology of mobile phone camera modules are constantly evolving, with telephoto lenses becoming widely used and popularized in mobile phone camera functions.

[0003] Currently, mobile phone camera modules need to be designed to meet multi-functional requirements, especially for telephoto lens applications. In order to achieve larger apertures and better imaging effects, the internal structure of the module has become more complex, and the number of structural surfaces involved in optical reflection in the module's optical path has also increased, leading to an increase and enhancement of stray light phenomena. Summary of the Invention

[0004] This application provides a camera module, a telephoto lens, and an electronic device, wherein the camera module is used to prevent stray light.

[0005] To achieve the above objectives, the embodiments of this application adopt the following technical solutions:

[0006] In a first aspect, a camera module is provided, which is applied to a telephoto lens. The camera module includes a mounting part, and an incident part, a first lens group, a second lens group, and a light receiving part, which are sequentially mounted on the mounting part along the incident direction of the light path. The mounting part includes a lens group mounting cylinder and a receiving part mounting cylinder. The first lens group and the second lens group are both mounted inside the lens group mounting cylinder. A receiving window is provided at one end of the receiving part mounting cylinder near the lens group mounting cylinder. The receiving window is used to deflect light from the second lens group toward the light receiving part. The camera module also includes a first light blocking part, which is mounted on a first side of the second lens group and is used to block light from passing through the gap between the first side of the second lens group and the inner wall of the mounting part. A first anti-reflection structure is provided on the side wall of the first light blocking part near the light receiving part. The first anti-reflection structure is used to disperse the light reflected from the light receiving part to the side of the first light blocking part near the light receiving part.

[0007] The camera module provided in this application embodiment effectively prevents some light from directly hitting the inner wall of the mounting part and generating stray light by using the first light-blocking part. At the same time, the anti-reflection structure disperses the reflected light that may be generated by the side wall of the first light-blocking part near the light receiving part, thereby reducing the generation of stray light and improving the quality and clarity of the camera image.

[0008] In one embodiment, the light receiving unit includes a filter unit and a photosensitive unit arranged sequentially along the incident direction of the light path. The filter unit is located at one end of the receiving window near the lens assembly mounting cylinder. A first light-shielding part is circumferentially arranged on the light-incident surface of the filter unit to block light from reaching the edge of the receiving window. The first light-shielding part blocks these light rays, preventing them from entering the optical system and causing stray light. When light enters from the edge of the receiving window, without the blocking of the first light-shielding part, these light rays may be directly reflected or refracted onto the lens assembly or other optical elements, resulting in stray light.

[0009] In one embodiment, a first reinforcing plate is provided at the bottom of the first lens group. A first clearance notch is provided on the side of the first reinforcing plate near the incident portion. A first anti-reflective portion is provided on the inner wall of the lens group mounting cylinder in the area corresponding to the first clearance notch. The first anti-reflective portion is used to receive light passing through the first clearance notch. The first reinforcing plate at the bottom of the first lens group primarily increases the overall strength of the first lens group to prevent the lenses from falling off or being damaged. The first clearance notch on the side of the first reinforcing plate near the incident portion provides space for light transmission, preventing it from being directly reflected to the light receiving portion, but instead guiding it to the first anti-reflective portion. The first anti-reflective portion is provided on the inner wall of the lens group mounting cylinder in the area corresponding to the first clearance notch. This portion absorbs or refracts light passing through the first clearance notch, preventing it from being directly reflected to the light receiving portion.

[0010] In one embodiment, a second reinforcing plate is provided at the bottom of the second lens group. A second clearance notch is provided on the side of the second reinforcing plate near the light-receiving part. A second anti-reflective part is provided on the inner wall of the lens group mounting cylinder in the area corresponding to the second clearance notch. The second anti-reflective part is used to receive light passing through the second clearance notch. The main function of the second reinforcing plate at the bottom of the second lens group is to increase the overall strength of the second lens group to prevent the lenses from falling off or being damaged. The second clearance notch on the side of the second reinforcing plate near the light-receiving part provides space for light transmission, preventing it from being directly reflected to the light-receiving part, but instead guiding it to the second anti-reflective part. The second anti-reflective part is provided on the inner wall of the lens group mounting cylinder in the area corresponding to the second clearance notch. This part absorbs or refracts light passing through the second clearance notch, preventing it from being directly reflected to the light-receiving part.

[0011] In one embodiment, the mounting portion includes an incident mounting assembly, and the incident portion includes a prism mounted on the incident mounting assembly. The prism has an incident surface and an exit surface, with the exit surface facing the first lens group. At least one edge of the prism is configured as a facet, and a third anti-reflective portion is provided on the facet. The facet on at least one edge of the prism facilitates the fabrication of the third anti-reflective portion. The facet makes the fabrication of the third anti-reflective portion easier and more precise. The third anti-reflective portion is located on the facet of the prism, and its function is to prevent the generation of stray light. This design effectively reduces stray light at the prism and improves image quality.

[0012] In one embodiment, a circumferentially screen-printed structure is provided on the incident surface of the prism, extending circumferentially along the incident surface; and / or, a circumferentially screen-printed structure is provided on the exit surface of the prism, extending circumferentially along the exit surface. These screen-printed structures extend circumferentially along the prism surface. The circumferentially screen-printed structure can block the edges of the prism, thereby preventing light from being reflected and refracted at the sharp corners, thus reducing or preventing stray light generation. This structural form can effectively reduce light reflection and refraction at the edges of the prism, thereby improving the light transmission quality and enhancing the imaging effect.

[0013] In one embodiment, a light-transmitting area is formed in the center of the circumferential screen-printed structure, and the light-transmitting area is a symmetrical shape centered on the principal optical axis of the prism. Through this customized screen-printing design, the camera module can produce more creative and distinctive light source shapes, thereby capturing more imaginative and artistic photos.

[0014] In one embodiment, the incident mounting assembly is provided with a second light-blocking part, which includes a light-blocking structure located on the side of the gap between the exit surface of the prism and the first lens group near the incident surface. This structure blocks light from entering the gap between the exit surface of the prism and the first lens group. The main function of the light-blocking structure is to block light rays that exceed the viewfinder's field of view, preventing them from entering the gap between the exit surface of the prism and the first lens group. In this way, stray light from outside the viewfinder's field of view can be effectively reduced or prevented from entering the module and causing stray light.

[0015] In one embodiment, the second light-blocking portion includes a circumferential light-blocking member disposed circumferentially along the incident surface, and a light-blocking structure disposed on the circumferential light-blocking member. Surrounding the incident surface of the prism and extending circumferentially, a light-blocking annular structure is formed.

[0016] In one embodiment, the first clearance notch is an arc-shaped notch or a rectangular notch; the second clearance notch is an arc-shaped notch or a rectangular notch.

[0017] In one embodiment, a second anti-reflective structure is provided on the inner wall of the first clearance notch and / or the inner wall of the second clearance notch. The second anti-reflective structure refers to a structure provided on the inner wall of the first or second clearance notch, whose function is to prevent direct reflection of light. These structures can take various forms, such as special surface treatments, absorption layers, or corrugated microstructures, to reduce light reflection.

[0018] In one embodiment, the first light-blocking part includes a light-blocking sheet made of a metal sheet. This provides additional support and strength, ensuring the stability and reliability of the second lens assembly during use.

[0019] In one embodiment, the light-blocking sheet has a first weight-reduction notch and a second weight-reduction notch, the first weight-reduction notch facing the light-receiving part and the second weight-reduction notch facing the first lens group, and a first anti-reflective structure is formed on the sidewall of the first weight-reduction notch. This is used to reduce weight.

[0020] In one embodiment, a second light-blocking portion is provided circumferentially on the light-emitting surface of the filter portion, and the light leakage area in the middle of the second light-blocking portion is smaller than the light leakage area in the middle of the first light-blocking portion. The second light-blocking portion blocks light leakage more densely when light passes through, resulting in a lower degree of light leakage compared to the first light-blocking portion alone.

[0021] In one embodiment, the first lens group includes a first lens carrier and a plurality of first lenses mounted on the first lens carrier, and a first reinforcing sheet is mounted on the second side of the first lens carrier. The second lens group includes a second lens carrier and a plurality of second lenses mounted on the second lens carrier, a first light-blocking portion is mounted on the first side of the second lens carrier, and a second reinforcing sheet is mounted on the second side of the second lens carrier.

[0022] In one embodiment, the second lens group is movably mounted in the mounting part along the optical path direction, and the camera module further includes a driving part mounted on the mounting part. The output end of the driving part is driven to the second lens group to drive the second lens group to move closer to or away from the first lens group.

[0023] A second aspect of this application provides a telephoto lens, which includes a camera module and a viewfinder assembly disposed outside the incident portion, wherein the camera module is the aforementioned camera module.

[0024] With the above technical solution, since the telephoto lens includes the aforementioned camera module, it possesses at least all the beneficial effects of the camera module, which will not be elaborated further here.

[0025] A third aspect of this application provides an electronic device, which includes a body and a camera module mounted on the body. The camera module is the aforementioned camera module. The mounting part includes an incident mounting assembly. The incident part includes a prism mounted on the incident mounting assembly. The prism has an incident surface and an exit surface. The incident surface is parallel to the plane containing the X and Y directions of the body, and the exit surface is parallel to the Z direction of the body. The thickness direction of the body is the Z direction, the length direction of the body is the Y direction, and the width direction of the body is the X direction.

[0026] With the above technical solution, since the electronic device includes the aforementioned camera module, it possesses at least all the beneficial effects of a camera module, which will not be elaborated further here. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of the camera module provided in the embodiments of this application;

[0028] Figure 2 This is an exploded view of the camera module provided in an embodiment of this application;

[0029] Figure 3 A schematic diagram of the optical path of the camera module, provided in the embodiment of this application, where light is reflected from the gap between the first side of the second lens group and the inner wall of the mounting part to the light receiving part;

[0030] Figure 4 This is a schematic diagram of the optical path of the camera module when light is reflected from the first light-blocking part to the light-receiving part, as provided in the embodiments of this application.

[0031] Figure 5 A schematic diagram of the structure of a light-blocking sheet with a circular arc-shaped protrusion provided in an embodiment of this application;

[0032] Figure 6 A schematic diagram of a light-blocking sheet with a triangular protrusion provided in an embodiment of this application;

[0033] Figure 7 A schematic diagram of a light-blocking sheet with a trapezoidal protrusion provided in an embodiment of this application;

[0034] Figure 8 This is a schematic diagram of the structure of the light-gathering surface of the filter section provided in an embodiment of this application;

[0035] Figure 9 A schematic diagram of the optical path of the camera module when light is reflected from the edge of the receiving window to the photosensitive part, as provided in the embodiments of this application;

[0036] Figure 10 This is a schematic diagram of the light-emitting surface of the filter section provided in an embodiment of this application;

[0037] Figure 11A schematic diagram of the optical path of the camera module when light is reflected onto the light receiving unit by the first reinforcing sheet, as provided in the embodiments of this application;

[0038] Figure 12 A schematic diagram of the structure of the first reinforcing piece, wherein the first clearance notch is a rectangular notch, provided in an embodiment of this application;

[0039] Figure 13 A schematic diagram of the structure of the first reinforcing piece, which has a first clearance notch in the form of an arc-shaped notch, provided in an embodiment of this application;

[0040] Figure 14 A schematic diagram of the structure of a first reinforcing sheet provided in an embodiment of this application, wherein the first clearance notch is a rectangular notch and a second anti-reflective structure is provided;

[0041] Figure 15 A schematic diagram of the structure of the first reinforcing sheet provided in the embodiments of this application, wherein the first clearance notch is an arc-shaped notch and a second anti-reflection structure is provided;

[0042] Figure 16 A schematic diagram of the optical path of the camera module when light is reflected onto the light receiving unit by the second reinforcing sheet, as provided in the embodiments of this application;

[0043] Figure 17 This is a schematic diagram of the structure of the second reinforcing piece, which has a rectangular notch, as provided in an embodiment of this application.

[0044] Figure 18 This is a schematic diagram of the structure of the second reinforcing piece, which has a second clearance notch that is arc-shaped, provided in an embodiment of this application.

[0045] Figure 19 A schematic diagram of the structure of the second reinforcing sheet provided in the embodiments of this application, wherein the second clearance notch is a rectangular notch and a second anti-reflection structure is provided;

[0046] Figure 20 A schematic diagram of the structure of the second reinforcing sheet provided in the embodiments of this application, wherein the second clearance notch is an arc-shaped notch and a second anti-reflection structure is provided;

[0047] Figure 21 A schematic diagram of the optical path of the camera module when light is reflected from the sharp corner of a prism to the light receiving unit, as provided in the embodiments of this application;

[0048] Figure 22 A front view of a prism provided in an embodiment of this application;

[0049] Figure 23 A left view of a prism provided in an embodiment of this application;

[0050] Figure 24 A right view of a prism provided in an embodiment of this application;

[0051] Figure 25 A top view of a prism provided in an embodiment of this application;

[0052] Figure 26 This is a schematic diagram of the first circumferential screen printing structure provided in the embodiments of this application;

[0053] Figure 27 This is a schematic diagram of the second circumferential screen printing structure provided in the embodiments of this application;

[0054] Figure 28 This is a schematic diagram of the third circumferential screen printing structure provided in the embodiments of this application;

[0055] Figure 29 This is a schematic diagram of the fourth circumferential screen printing structure provided in the embodiments of this application;

[0056] Figure 30 This is a schematic diagram of the fifth circumferential screen printing structure provided in the embodiments of this application;

[0057] Figure 31 A schematic diagram of the optical path of the camera module when light outside the viewfinder's field of view enters and is reflected within the module, as provided in an embodiment of this application.

[0058] Figure 32 This is a schematic diagram of the structure of the camera module provided in the embodiments of this application;

[0059] Figure 33 This is a schematic diagram of the structure of the first lens group and the second lens group provided in the embodiments of this application;

[0060] Figure 34 This is a cross-sectional schematic diagram of the second lens group provided in an embodiment of this application;

[0061] Figure 35 This is a cross-sectional schematic diagram of the first lens group provided in an embodiment of this application;

[0062] Figure 36 This is a schematic diagram of the structure of the electronic device provided in the embodiments of this application;

[0063] Figure 37 This is a schematic diagram of the structure of an electronic device from another perspective, as provided in the embodiments of this application.

[0064] The meanings of the various symbols in the attached icons are as follows:

[0065] 10. Mounting section; 11. Lens assembly mounting tube; 111. First anti-reflective section; 112. Second anti-reflective section; 12. Receiver mounting tube; 121. Receiver window; 13. Incident mounting assembly; 131. Light-blocking structure; 132. Prism carrier;

[0066] 21. Prism; 211. Incident surface; 212. Exit surface; 213. Cross-section; 214. Circumferential screen printing structure; 2141. Light-transmitting area;

[0067] 30. First lens group; 31. First reinforcing lens; 311. First clearance notch; 32. First lens carrier; 33. First lens;

[0068] 40. Second lens group; 41. Second reinforcing element; 411. Second clearance notch; 4111. Second anti-reflective structure; 42. Second lens carrier; 43. Second lens;

[0069] 50. Light receiving unit; 51. Light filtering unit; 511. First light-shielding unit; 512. Second light-shielding unit; 52. Photosensitive unit;

[0070] 61. Light-blocking plate; 611. First weight-reduction notch; 6111. First anti-reflection structure; 612. Second weight-reduction notch;

[0071] 70. Fuselage;

[0072] 80. Camera module. Detailed Implementation

[0073] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0074] It should be understood that, in the description of this application, the terms "length," "width," "thickness," "top," "bottom," "inner," "outer," "upper," "lower," "left," "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0075] The terms "first," "second," "third," and "fourth," etc., are used only for distinguishing descriptions and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. For example, "first pushing part" and "second pushing part" are merely used to distinguish different pushing parts and do not limit their order. The first pushing part can also be named the second pushing part, and the second pushing part can also be named the first pushing part, without departing from the scope of the various described embodiments. Furthermore, the terms "first," "second," "third," and "fourth," etc., do not imply that the indicated features must be different.

[0076] In the embodiments of this application, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0077] In the embodiments of this application, "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist; for example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0078] It should be noted that in the embodiments of this application, the words "in one embodiment," "exemplarily," and "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design that is described as "in one embodiment," "exemplarily," or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design options. Specifically, the use of the words "in one embodiment," "exemplarily," and "for example" is intended to present the relevant concepts in a specific manner.

[0079] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments.

[0080] In related technologies, to achieve larger apertures and better imaging effects, the internal structure of the module becomes more complex, and the number of structural surfaces involved in optical reflection in the module's optical path also increases, leading to an increase and enhancement of stray light phenomena. When the internal structure of the module becomes more complex, the propagation path of light within it also becomes more complex. This means that light will be reflected by more surfaces as it passes through the module. For example, light will be refracted or reflected when passing through different lenses, lenses, and other optical elements and lens structures, and these reflections will make the light path within the module more intricate. With light undergoing multiple reflections within the module, some light escapes the intended optical path, ultimately producing stray light or glare on the imaging plane. These stray light phenomena reduce image contrast and sharpness, and may even affect the overall image quality and color reproduction.

[0081] Therefore, although the aperture size and the complexity of the module's internal structure were increased in the design to achieve better imaging results, this resulted in an increase in the number of structural surfaces involved in optical reflection in the module's optical path, which in turn exacerbated and enhanced stray light phenomena.

[0082] See Figure 1 and Figure 2 As shown, to solve the above problems, specifically, the camera module of this application embodiment is applied to a telephoto lens. The camera module includes a mounting part 10, and an incident part, a first lens group 30, a second lens group 40, and a light receiving part 50, which are sequentially mounted on the mounting part 10 along the incident light path. The mounting part 10 includes a lens group mounting cylinder 11 and a receiving part mounting cylinder 12. The first lens group 30 and the second lens group 40 are both mounted inside the lens group mounting cylinder 11. A receiving window 121 is provided at one end of the receiving part mounting cylinder 12 near the lens group mounting cylinder 11. The receiving window 121 is used to allow light from the second lens group 40 to pass through the light receiving part 50. Please refer to... Figure 3 As shown, without the first light-blocking part, some light rays will pass through the gap between the first side of the second lens group 40 and the inner wall of the mounting part 10, and directly hit the inner wall of the mounting part 10. After reflection, they will reach the light receiving part 50, producing stray light. Please refer to... Figure 4 As shown, a portion of the light rays will pass sequentially through the incident part, the first lens group 30, and the second lens group 40 to reach the light receiving part 50. A portion of the light rays reaching the light receiving part 50 will be reflected by the elements of the light receiving part 50 and will reach the side wall of the first light blocking part near the light receiving part 50, and will be reflected back to the light receiving part 50, thereby generating stray light.

[0083] For this reason, see Figure 1 As shown, the camera module in the embodiment of this application further includes a first light-blocking part, which is installed on the first side of the second lens group 40 to block light from passing through the gap between the first side of the second lens group 40 and the inner wall of the mounting part 10. A first anti-reflection structure 6111 is provided on the side wall of the first light-blocking part near the light receiving part 50. The first anti-reflection structure 6111 is used to disperse the light reflected from the light receiving part 50 to the side of the first light-blocking part near the light receiving part 50. In order to prevent some of the light from directly hitting the inner wall of the mounting part 10 and generating stray light, the first light-blocking part is designed in the embodiment of this application. This component is installed on the first side of the second lens group 40, located in the light propagation path, and is used to block light from passing through the gap between the first side of the second lens group 40 and the inner wall of the mounting part 10. Here, "first side" refers to one side of the second lens group 40, which refers to a specific side in the structure of the second lens group 40, such as Figure 1On the upper side of the first light-blocking part, a first anti-reflection structure 6111 is provided on the side wall of the first light-blocking part near the light receiving part 50. This structure disperses light reflected from the light receiving part 50 onto the side of the first light-blocking part near the light receiving part 50, preventing reflected light from reaching the light receiving part 50 again and thus reducing stray light. Through this arrangement, the first light-blocking part effectively prevents some light from directly hitting the inner wall of the mounting part 10 and generating stray light. Simultaneously, the anti-reflection structure disperses any reflected light that may be generated on the side wall of the first light-blocking part near the light receiving part 50, ultimately reducing stray light and improving the quality and clarity of the captured image.

[0084] It should be noted that the camera module refers to a modular component used for the camera function of a mobile phone, which includes multiple optical elements and mechanical parts. A telephoto lens refers to a lens with a long focal length, capable of capturing distant objects, suitable for scenarios requiring long-distance shooting. The mounting section 10 is a part of the camera module, serving as the basic structure for supporting and mounting optical elements and other mechanical parts. The incident section is where light enters the camera module, located before entering the first lens group 30 in the optical path. The first lens group 30 and the second lens group 40 are two sets of lenses in the camera module, used to refract and focus light to form a clear image. The light receiving section 50 is the end part of the camera module, used to receive the light processed by the lens groups and transmit it to the photosensitive element of the camera device. The lens group mounting cylinder 11 and the receiving section mounting cylinder 12 are two parts of the mounting section 10, used to mount the first lens group 30, the second lens group 40, and the light receiving section 50, respectively. The receiving window 121 is located at one end of the receiving unit mounting tube 12 and is used to guide light from the second lens group 40 to the light receiving unit 50.

[0085] The first anti-reflection structure 6111 is a structure disposed on the sidewall of the first light-blocking part near the light-receiving part 50. It is used to disperse light reflected from the light-receiving part 50 to the side of the first light-blocking part near the light-receiving part 50, thereby reducing the possibility of reflected light returning to the light-receiving part 50 and generating stray light. The first anti-reflection structure 6111 can adopt various structural forms, including but not limited to, providing multiple protrusions on the sidewall of the first light-blocking part near the light-receiving part 50. These protrusions can be tiny protrusions, edges, or raised shapes, used to change the propagation direction and path of light, thereby dispersing light reflected from the light-receiving part 50 to the side of the first light-blocking part near the light-receiving part 50 and reducing the amount of reflected light returning to the light-receiving part 50. In other embodiments, special microstructured surfaces, such as micro-bump structures, surface textures, micro-columnar structures, etc., can also be used to change the incident angle and propagation direction of light to achieve the purpose of reducing reflectivity.

[0086] See Figure 1 and Figure 2 As shown, to improve the structural strength of the second lens group 40 and prevent lenses from falling out, the first light-blocking part in this embodiment includes a light-blocking sheet 61 made of a metal sheet, such as steel, to enhance the structural strength of the second lens group 40. The first light-blocking part is designed to enhance the structural strength of the second lens group 40 to prevent lenses from falling out. For this purpose, the light-blocking sheet 61 is made of a metal sheet, such as steel. This provides additional support and strength, ensuring the stability and reliability of the second lens group 40 during use.

[0087] Because a metal sheet, such as a steel sheet, is used, its smooth surface makes it more prone to reflection and the generation of stray light. The first anti-reflection structure 6111 is designed to change the direction and path of light propagation, thereby breaking up the light reflected from the light receiving unit 50 to the side of the first light blocking unit near the light receiving unit 50, reducing the amount of reflected light returning to the light receiving unit 50. This reduces the generation of stray light and improves the imaging quality and clarity of the camera module.

[0088] See Figures 5 to 7 As shown, since metal materials are generally heavy, in order to reduce the weight of the first light-blocking part, the light-blocking plate 61 in this embodiment of the application is provided with a first weight-reducing notch 611 and a second weight-reducing notch 612. The first weight-reducing notch 611 faces the light-receiving part 50, and the second weight-reducing notch 612 faces the first lens group 30. The first anti-reflective structure 6111 is formed on the sidewall of the first weight-reducing notch 611, which helps to reduce the weight of the light-blocking plate 61. At the same time, to ensure the stability and balance of the structure, the first weight-reducing notch 611 and the second weight-reducing notch 612 are arc-shaped. See also Figures 5 to 7 As shown, the first anti-reflective structure 6111 includes multiple protrusions, the shapes of which include, but are not limited to, arc shapes, triangles, and trapezoids. The diameter of the arc shape is preferably less than 0.2 mm.

[0089] See Figure 1 As shown, the light receiving unit 50 in this embodiment includes a filter unit 51 and a photosensitive unit 52 arranged sequentially along the incident direction of the light path. The filter unit 51 is located at one end of the receiving window 121 near the lens assembly mounting cylinder 11. A first light-blocking part 511 is circumferentially arranged on the light-receiving surface of the filter unit 51 to block light from reaching the edge of the receiving window 121. The light receiving unit 50 consists of a filter unit 51 and a photosensitive unit 52, which are arranged sequentially along the incident direction of the light path. The filter unit 51 is located at one end of the receiving window 121 near the lens assembly mounting cylinder 11 and is used to filter out specific wavelengths or frequencies in the light. The photosensitive unit 52 follows immediately after it and is used to receive the light processed by the filter unit 51 and convert it into an electrical signal. See also Figure 8As shown, a first light-shielding part 511 is provided circumferentially on the light-receiving surface of the filter part 51. Its function is to block light from hitting the edge of the receiving window 121, thereby avoiding the generation of direct reflection stray light. See also Figure 9 As shown, if the filter 51 is not placed in front of the receiving window 121 and the first light-blocking part is not provided, some light will hit the edge of the receiving window 121 and be reflected directly to the photosensitive part 52, thus forming stray light.

[0090] The filter section 51 can be an infrared filter, blue glass, etc., and the solution is not unique.

[0091] It should be noted that the first light-shielding part 511 uses screen printing ink to form a relatively thick ink layer around the edge of the receiving window 121. This layer has a high density and effectively blocks light rays incident on the edge of the receiving window 121, thus preventing stray light reflected from the edge of the receiving window 121 from reaching the photosensitive element. The first light-shielding part 511 blocks these rays, preventing them from entering the optical system and causing stray light. When light enters from the edge of the receiving window 121, without the blocking effect of the first light-shielding part 511, this light may be directly reflected or refracted onto the lens group or other optical elements, resulting in stray light. With the protection of the first light-shielding part 511, the generation of stray light is greatly reduced after these rays are blocked. By effectively blocking edge light and reducing direct reflection stray light, the first light-shielding part 511 ensures that light enters the photosensitive part 52 normally, enabling it to clearly sense light and preventing the reduction of image quality or the increase of image noise due to stray light.

[0092] See Figure 8 As shown, in one embodiment, the screen printing design around the light-receiving surface of the filter section 51 avoids issues such as misalignment of module materials. This effectively reduces light reflection and leakage at the edge of the receiving window 121, thereby preventing vignetting during light sensor imaging and improving the perception and overall quality of the imaging effect.

[0093] See Figure 10As shown, in this embodiment, a second light-blocking portion 512 is provided circumferentially on the light-emitting surface of the filter portion 51. The light leakage area in the middle of the second light-blocking portion 512 is smaller than the light leakage area in the middle of the first light-blocking portion 511. A second layer of light-blocking portions is provided around the light-emitting surface of the filter portion 51 to further block light leakage and scattering. The light leakage area in the middle of the second light-blocking portion 512 is smaller than the light leakage area in the middle of the first light-blocking portion 511. This means that the second light-blocking portion 512 will block light leakage more densely when light passes through, resulting in lower light leakage compared to only the first light-blocking portion 511. The filter is placed in front of the window, and the arrangement of the first light-blocking portion 511 and the second light-blocking portion 512 can effectively block stray light reflected by the adhesive between the filter and the window. When light passes through the filter portion 51, the adhesive may reflect or scatter, leading to the generation of stray light. At the same time, by placing the filter on the side of the window away from the photosensitive part 52, the distance between the filter and the photosensitive part 52 is increased, which can also prevent some particles from being generated and contaminating the photosensitive part 52 when the filter is installed.

[0094] See Figure 1 As shown, in this embodiment of the application, the bottom of the first lens group 30 is provided with a first reinforcing sheet 31. See also... Figure 11 As shown, some of the light rays hit the first reinforcing plate 31, creating stray light. For this reason, see... Figure 1 and Figures 12 to 15As shown, a first clearance notch 311 is provided on the side of the first reinforcing plate 31 near the incident portion. A first anti-reflection part 111 is provided on the inner wall of the lens assembly mounting cylinder 11 corresponding to the first clearance notch 311. The first anti-reflection part 111 is used to receive light passing through the first clearance notch 311. The first reinforcing plate 31 is provided at the bottom of the first lens assembly 30, and its main function is to increase the overall strength of the first lens assembly 30 to prevent the lens from falling off or being damaged. Usually, the first reinforcing plate 31 is made of metal to ensure sufficient strength. It is difficult to process and injection mold the carrier and other structures of the first lens assembly 30 by coating and then processing the steel sheet. Since the surface of the metal sheet is relatively smooth, when light hits the first reinforcing plate 31, it is easy to directly reflect, resulting in the generation of stray light. This will interfere with the light receiving part 50 and affect the imaging quality. In order to solve the problem of stray light generated by light reflection, a first clearance notch 311 is provided on the side of the first reinforcing plate 31 near the incident portion. The purpose of this notch is to allow space for light transmission, preventing it from being directly reflected to the light receiving unit 50. Instead, it guides the light to the first anti-reflective part 111. The first anti-reflective part 111 is located on the inner wall of the lens assembly mounting cylinder 11 in the area corresponding to the first notch 311. This part absorbs or refracts the light passing through the first notch 311, preventing it from being directly reflected to the light receiving unit 50. The first anti-reflective part 111 can be an anti-reflective coating to reduce reflectivity and minimize stray light. Alternatively, a special surface structure or uneven surface can be designed to change the direction of light propagation, making it less likely for the light to be reflected back to the light receiving unit 50. For example, using microstructures or nanostructures for surface treatment can effectively reduce reflectivity. An absorption layer can also be used to absorb the energy of reflected light, reducing the intensity of the reflected light. This effectively reduces reflectivity and minimizes stray light.

[0095] See Figure 16 As shown, some of the light rays will hit the second reinforcing plate 41, creating stray light. (See Figure 41 for details.) Figure 1 and Figures 17 to 20As shown, in this embodiment, the bottom of the second lens group 40 is provided with a second reinforcing plate 41. A second clearance notch 411 is provided on the side of the second reinforcing plate 41 near the light receiving section 50. A second anti-reflection section 112 is provided on the inner wall of the lens group mounting cylinder 11 corresponding to the second clearance notch 411. The second anti-reflection section 112 is used to receive light passing through the second clearance notch 411. The second reinforcing plate 41 at the bottom of the second lens group 40 primarily increases the overall strength of the second lens group 40 to prevent the lenses from falling off or being damaged. Typically, the second reinforcing plate 41 is made of metal to ensure sufficient strength. It is difficult to process and injection mold the carrier and other structures of the second lens group 40 by coating a steel sheet. Because the surface of the metal sheet is relatively smooth, when light hits the second reinforcing plate 41, it is prone to direct reflection, resulting in stray light. This interferes with the light receiving section 50 and affects the imaging quality. To address the issue of stray light generated by light reflection, a second clearance notch 411 is provided on the side of the second reinforcing plate 41 closest to the light receiving section 50. This notch provides space for light transmission, preventing it from being directly reflected back to the light receiving section 50 and instead guiding it to the second anti-reflective part 112. The second anti-reflective part 112 is located on the inner wall of the lens assembly mounting cylinder 11 in the area corresponding to the second clearance notch 411. This part absorbs or refracts light passing through the second clearance notch 411, preventing it from being directly reflected back to the light receiving section 50. The second anti-reflective part 112 can be an anti-reflective coating to reduce reflectivity and minimize stray light generation. Alternatively, a special surface structure or uneven surface can be designed to alter the direction of light propagation, making it less likely for light to be reflected back to the light receiving section 50. For example, using microstructures or nanostructures for surface treatment can effectively reduce reflectivity. An absorption layer can also be used to absorb the energy of reflected light, reducing its intensity. This effectively reduces reflectivity and minimizes stray light generation.

[0096] See Figures 12 to 15 and Figures 17 to 20 As shown, in this embodiment, the first clearance notch 311 is an arc-shaped notch or a rectangular notch; the second clearance notch 411 is an arc-shaped notch or a rectangular notch. Preferably, an arc-shaped notch refers to designing the edge of the notch to be arc-shaped. This design can reduce the sharp edges of the notch, helping to reduce stress concentration and improve the strength and durability of the part. The arc-shaped notch can reduce the edge pressure of the first clearance notch 311 and the second clearance notch 411, thereby enhancing their structural strength. Of course, in other embodiments, other shaped notches can also be used.

[0097] See Figures 12 to 15 and Figures 17 to 20As shown, in this embodiment of the application, a second anti-reflective structure 4111 is provided on the inner wall of the first clearance notch 311 and / or the inner wall of the second clearance notch 411. The second anti-reflective structure 4111 refers to a structure provided on the inner wall of the first clearance notch 311 or the second clearance notch 411, and its function is to prevent direct reflection of light. These structures can take various forms, such as special surface treatments, absorption layers, or corrugated microstructures, to reduce light reflection.

[0098] See Figure 21 As shown, stray light is also generated at the sharp corners of prism 21. (See Figure 21 for details.) Figure 1 , Figure 22 and Figure 23 As shown, the mounting portion 10 in this embodiment includes an incident mounting assembly 13. The incident portion includes a prism 21 mounted on the incident mounting assembly 13. The prism 21 has an incident surface 211 and an exit surface 212, with the exit surface 212 facing the first lens group 30. At least one edge of the prism 21 is provided with a chamfer 213, and a third anti-reflection part is provided on the chamfer 213. The sharp corners of the prism 21 may generate stray light due to reflection and refraction of light, which may affect the image quality. In this embodiment, the mounting portion 10 of the camera module includes an incident mounting assembly 13, and the incident portion includes a prism 21 mounted on this assembly. This prism 21 has an incident surface 211 and an exit surface 212, with the exit surface 212 facing the first lens group 30. Its design is for guiding light. A chamfer 213 is provided on at least one edge of the prism 21 to facilitate the processing of the third anti-reflection part. The design of the facet 213 makes the manufacturing of the third anti-reflective element easier and more precise. The third anti-reflective element, located on the facet 213 of the prism 21, prevents stray light from being generated. This design effectively reduces stray light at the prism 21 and improves image quality.

[0099] See Figure 24 and Figure 25As shown, to avoid stray light generation at the sharp corners of the prism 21, a circumferential silkscreen structure 214 is provided on the incident surface 211 of the prism 21 in this embodiment. The circumferential silkscreen structure 214 extends circumferentially along the incident surface 211, and / or, a circumferential silkscreen structure 214 is provided on the exit surface 212 of the prism 21, extending circumferentially along the exit surface 212. The circumferential silkscreen structure 214 blocks the edges of the prism 21, thereby preventing stray light generation. Stray light is generated at the sharp corners of the prism 21 due to the reflection and refraction of light, which may affect the image quality. In this embodiment, to address this problem of the prism 21, a method of providing a circumferential silkscreen structure 214 on the incident surface 211 and / or the exit surface 212 of the prism 21 is adopted. These silkscreen structures extend circumferentially along the surface of the prism 21. The circumferential silkscreen structure 214 can block the edge of the prism 21, thereby preventing light from being reflected and refracted at the sharp corners, thus reducing or preventing stray light. This structure can effectively reduce light reflection and refraction at the edge of the prism 21, thereby improving the quality of light transmission and enhancing the imaging effect.

[0100] See Figures 26 to 30 As shown, in this embodiment, a light-transmitting area 2141 is formed in the center of the circumferential silkscreen structure 214. The light-transmitting area 2141 is a symmetrical shape centered on the principal optical axis of the prism 21. In the center of the circumferential silkscreen structure 214, a light-transmitting area 2141 is formed, which is an area through which light can pass. The shape of this light-transmitting area 2141 is symmetrical about the principal optical axis of the prism 21. The shape of the light-transmitting area 2141 is the same in both the horizontal and vertical directions, exhibiting symmetry. Users can choose different shapes of silkscreen patterns according to their preferences and needs. This satisfies users' personalized needs for light source shapes; for example, users can choose a starburst-shaped light source, making the photos taken more artistic and imaginative. Through this customized silkscreen design, the camera module can produce more creative and distinctive light source shapes, thereby capturing more imaginative and artistic photos.

[0101] See Figure 31 As shown, due to optical design reasons, the gap between prism 21 and the first lens group 30 is relatively large. This results in stray light being reflected from light outside the viewfinder's field of view into the module. (See [link to relevant documentation]). Figure 1 and Figure 32As shown, the incident mounting assembly 13 in this embodiment of the application is provided with a second light-blocking part, which includes a light-blocking structure 131. The light-blocking structure 131 is located on the side of the gap between the exit surface 212 of the prism 21 and the first lens group, closer to the incident surface 211, and is used to block light from entering the gap between the exit surface 212 of the prism 21 and the first lens group. The main function of the light-blocking structure 131 is to block light that exceeds the viewfinder's field of view, preventing it from entering the gap between the exit surface 212 of the prism 21 and the first lens group 30. In this way, light outside the viewfinder's field of view can be effectively reduced or prevented from entering the module and generating stray light.

[0102] The second light-blocking part in this embodiment includes a circumferential light-blocking member, which is arranged circumferentially along the incident surface 211, and a light-blocking structure 131 is disposed on the circumferential light-blocking member. The circumferential light-blocking member is a light-blocking component arranged circumferentially along the incident surface 211 of the prism 21. It surrounds the incident surface 211 of the prism 21 and extends circumferentially, forming a light-blocking annular structure. The light-blocking structure 131 is a part connected to or integrated with the circumferential light-blocking member, and together they constitute the components of the second light-blocking part. To facilitate installation, a certain gap can be provided between the light-blocking structure 131 and the viewfinder window without affecting the light-blocking effect.

[0103] See Figure 1 , Figure 2 and Figures 32 to 35 As shown, in this embodiment, the first lens group 30 includes a first lens carrier 32 and a plurality of first lenses 33 mounted on the first lens carrier 32. A first reinforcing plate 31 is mounted on the second side of the first lens carrier 32. The second lens group 40 includes a second lens carrier 42 and a plurality of second lenses 43 mounted on the second lens carrier 42. A first light-blocking portion is mounted on the first side of the second lens carrier 42, and a second reinforcing plate 41 is mounted on the second side of the second lens carrier 42, wherein the second side is opposite to the first side. The first lens group 30 includes a first lens carrier 32 and a plurality of first lenses 33 mounted thereon. These lenses have different optical functions to achieve specific optical effects. The first reinforcing plate 31 is mounted on the second side of the first lens carrier 32, that is, the side away from the viewfinder. Similarly, the second lens group 40 includes a second lens carrier 42 and a plurality of second lenses 43 mounted thereon. Again, these lenses may have different optical functions. The second reinforcing plate 41 is mounted on the second side of the second lens carrier 42, also the side away from the viewfinder. The main function of the first reinforcing plate 31 and the second reinforcing plate 41 is to enhance the overall strength of the first lens group 30 and the second lens group 40, ensuring their stability and reliability. This effectively prevents the lens groups from deforming during use or being damaged by external environmental factors, thus guaranteeing the performance and lifespan of the camera module.

[0104] In this embodiment, the second lens group 40 is movably mounted within the mounting portion 10 along the optical path direction. The camera module also includes a drive unit mounted on the mounting portion 10. The output end of the drive unit is drivenly connected to the second lens group 40 to drive the second lens group 40 closer to or further away from the first lens group 30. The second lens group 40 is mounted within the mounting portion 10 of the camera module and can move along the optical path direction. The position of the second lens group 40 can be adjusted as needed to achieve precise control and adjustment of the optical path. The camera module is equipped with a drive unit whose output end is connected to the second lens group 40. The drive unit provides power to enable the second lens group 40 to move closer to or further away from the first lens group 30 along the optical path direction. In this way, the position of the second lens group 40 can be adjusted, thereby affecting the focal length or other optical parameters of the optical path. The drive unit and driving method can be an electric actuator, a piezoelectric actuator, etc., which will not be described in detail here.

[0105] According to a second aspect of this application, a telephoto lens is provided, the telephoto lens including a camera module and a viewfinder assembly disposed outside the incident portion, wherein the camera module is the aforementioned camera module.

[0106] See Figure 36 and Figure 37 As shown, according to a third aspect of this application, an electronic device is provided. The electronic device includes a body 70 and a camera module 80 mounted on the body 70. The camera module 80 is the aforementioned camera module 80. The mounting part 10 includes an incident mounting assembly 13. The incident part includes a prism 21 mounted on the incident mounting assembly 13. The prism 21 has an incident surface 211 and an exit surface 212. The incident surface 211 is parallel to the plane containing the X and Y directions of the body 70, and the exit surface 212 is parallel to the Z direction of the body 70. The thickness direction of the body 70 is the Z direction of the body 70, the length direction of the body 70 is the Y direction of the body 70, and the width direction of the body 70 is the X direction of the body 70. Through the above settings, the multi-group (first lens module and second lens module) camera module 80 of this application embodiment, which features a large aperture, long focal length macro, high pixel count, and large sensor, can also maintain a clean image and avoid stray light; while simultaneously achieving the requirements of module miniaturization and lightweighting; the overall height / thickness can be further reduced, enhancing the competitiveness of the entire product. The lenses of the first lens module and the second lens module adopt a chamfered edge design in the vertical direction, which can reduce the module height / thickness, lens, and module weight; the chamfered edge position of the lens can be set with fogging and blackening to reduce stray light reflected in the chamfered edge direction; the lens chamfer ratio (chamfered edge diameter / circle edge diameter) range can be achieved from 5-35%; the multi-group design can achieve longer focal length and shorter macro optical design; the aperture range can be F1.6-2.5; the focal length can be 6-100mm; and the macro can be 5-20mm.

[0107] The incident mounting assembly 13 includes a prism carrier 132 for supporting the prism 21. The upper and lower parts of the prism carrier 132 have a cutout design to further reduce the weight of the module.

[0108] The lens carrier can be designed as a single unit, thereby reducing its size and the weight of some modules, while improving the reliability and quality of the lens carrier and the openness of the mobile group function design.

[0109] The moving group lens can be a first lens module or a second lens module. The displacement of the moving group lens is not limited to using sliding axis movement, VCM (Voice Coil Motor) drive, shape memory alloy drive, or piezoelectric drive motor. The aperture is moved forward to obtain a larger aperture design. By moving the aperture forward to achieve a larger aperture design, the amount of light entering the lens is increased, thereby improving the image quality in low light conditions and increasing shooting flexibility.

[0110] The aforementioned lens modules can also be applied to stray light reduction module designs in automotive, PC, AR, VR, and security applications. Among these, "Vehicle-Mounted" refers to equipment or systems installed in automobiles or other vehicles. "PC" refers to a personal computer, typically a laptop. "AR" (Augmented Reality) is a technology that improves the user's perceptual experience by overlaying digital information and images onto real-world scenes. "VR" (Virtual Reality) is a technology that creates an immersive experience by simulating a fictional environment. "Security and Surveillance" refers to systems or equipment used to monitor and protect the safety of property, people, or locations.

[0111] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be included within the protection scope of this application.

Claims

1. A camera module, characterized in that, The camera module is applied to a telephoto lens. The camera module includes a mounting section, and an incident section, a first lens group, a second lens group, and a light receiving section, which are sequentially mounted on the mounting section along the incident light path. The mounting section includes a lens group mounting cylinder and a light receiving cylinder. Both the first lens group and the second lens group are mounted inside the lens group mounting cylinder. A receiving window is provided at the end of the receiving cylinder closest to the lens group mounting cylinder. The receiving window is used to allow light from the second lens group to pass through the light receiving section. The camera module also includes: A first light-blocking part is installed on the first side of the second lens group to block light from passing through the gap between the first side of the second lens group and the inner wall of the mounting part; a first anti-reflection structure is provided on the side wall of the first light-blocking part near the light receiving part, and the first anti-reflection structure is used to disperse the light reflected from the light receiving part to the side of the first light-blocking part near the light receiving part.

2. The camera module according to claim 1, characterized in that, The light receiving unit includes a filter unit and a photosensitive unit arranged sequentially along the incident direction of the light path. The filter unit is located at one end of the receiving window near the lens assembly mounting cylinder. A first light-shielding part is arranged circumferentially on the light-incoming surface of the filter unit to block light from hitting the edge of the receiving window.

3. The camera module according to claim 1, characterized in that, The bottom of the first lens group is provided with a first reinforcing plate, and the side of the first reinforcing plate near the incident part is provided with a first clearance notch. The area on the inner wall of the lens group mounting tube corresponding to the first clearance notch is provided with a first anti-reflection part, which is used to receive light passing through the first clearance notch.

4. The camera module according to claim 3, characterized in that, The bottom of the second lens group is provided with a second reinforcing plate, and the side of the second reinforcing plate near the light receiving part is provided with a second clearance notch. The area on the inner wall of the lens group mounting tube corresponding to the second clearance notch is provided with a second anti-reflection part, which is used to receive light passing through the second clearance notch.

5. The camera module according to claim 1, characterized in that, The mounting portion includes an incident mounting assembly, the incident portion includes a prism mounted on the incident mounting assembly, the prism has an incident surface and an exit surface, the exit surface faces the first lens group, at least one edge of the prism is configured as a truncated face, and a third anti-reflection portion is provided on the truncated face.

6. The camera module according to claim 5, characterized in that, The prism has a circumferential screen-printed structure on its incident surface, which extends circumferentially along the incident surface, and / or the prism has a circumferential screen-printed structure on its exit surface, which extends circumferentially along the exit surface.

7. The camera module according to claim 6, characterized in that, A light-transmitting area is formed in the middle of the circumferential screen printing structure, and the light-transmitting area has a symmetrical shape centered on the principal optical axis of the prism.

8. The camera module according to claim 7, characterized in that, The incident mounting assembly is provided with a second light-blocking part, which includes a light-blocking structure located on the side of the gap between the exit surface of the prism and the first lens group closer to the incident surface, for blocking light from entering the gap between the exit surface of the prism and the first lens group.

9. The camera module according to claim 8, characterized in that, The second light-blocking part includes a circumferential light-blocking member, which is arranged circumferentially along the incident surface, and the light-blocking structure is disposed on the circumferential light-blocking member.

10. The camera module according to claim 4, characterized in that, The first clearance opening is an arc-shaped opening or a rectangular opening; the second clearance opening is an arc-shaped opening or a rectangular opening.

11. The camera module according to claim 10, characterized in that, A second anti-reflective structure is present on the inner wall of the first clearance notch and / or on the inner wall of the second clearance notch.

12. The camera module according to claim 1, characterized in that, The first light-blocking part includes a light-blocking sheet, which is made of a metal sheet.

13. The camera module according to claim 12, characterized in that, The light-blocking plate is provided with a first weight-reduction notch and a second weight-reduction notch. The first weight-reduction notch faces the light-receiving part, and the second weight-reduction notch faces the first lens group. The first anti-reflection structure is formed on the side wall of the first weight-reduction notch.

14. The camera module according to claim 2, characterized in that, The light-emitting surface of the filter is provided with a second light-blocking part in the circumferential direction, and the light leakage area in the middle of the second light-blocking part is smaller than the light leakage area in the middle of the first light-blocking part.

15. The camera module according to claim 4, characterized in that, The first lens group includes a first lens carrier and a plurality of first lenses mounted on the first lens carrier. The first reinforcing sheet is mounted on the second side of the first lens carrier. The second lens group includes a second lens carrier and a plurality of second lenses mounted on the second lens carrier. The first light-blocking part is mounted on the first side of the second lens carrier, and the second reinforcing sheet is mounted on the second side of the second lens carrier.

16. The camera module according to claim 1, characterized in that, The second lens group is movably mounted in the mounting part along the optical path direction. The camera module also includes a driving part mounted on the mounting part. The output end of the driving part is driven to the second lens group to drive the second lens group to move closer to or away from the first lens group.

17. A telephoto lens, characterized in that, The telephoto lens includes a camera module and a viewfinder assembly disposed outside the incident portion, wherein the camera module is the camera module according to any one of claims 1 to 16.

18. An electronic device, characterized in that, The electronic device includes a body and a camera module mounted on the body. The camera module is the camera module according to any one of claims 1 to 16. The mounting part includes an incident mounting assembly. The incident part includes a prism mounted on the incident mounting assembly. The prism has an incident surface and an exit surface. The incident surface is parallel to the plane containing the X and Y directions of the body. The exit surface is parallel to the Z direction of the body. The thickness direction of the body is the Z direction of the body. The length direction of the body is the Y direction of the body. The width direction of the body is the X direction of the body.

Images