Periscope lens module and electronic device
Patent Information
- Application Number
- CN202510511755.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-22
- Publication Date
- 2026-10-23
AI Technical Summary
[0003]然而，相关技术中的潜望镜头模组只是减小了镜头模组在电子设备中厚度方向的尺寸，而未减小镜头模组在电子设备中长度或宽度方向的尺寸，因此并未减小镜头模组的整体尺寸
[0034]本公开提供了一种潜望镜头模组，一方面，由于棱镜组件能够汇聚光线，因此可以减小透镜组件中相邻凸透镜的间距。这样，有利于减小透镜组件的尺寸。另一方面，将棱镜组件的入射面和出射面均设计为曲面，因此入射面和出射面能够作为变量参与潜望镜头模组的光学系统优化，提高了潜望镜头模组整体的光学自由度。潜望镜头模组的光学自由度越高，越有利于潜望镜头模组整体尺寸缩小。经试验测得，在棱镜组件上增加凸面和凹面后，潜望镜头模组的厚度增加0.5mm-1mm，长度能够减小3mm-6mm。这样，减小了潜望镜头模组的整体尺寸。能够减小潜望镜头模组在电子设备中的空间，有利于其他器件的布置。
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Figure CN122962759A_ABST
Abstract
Description
Technical Field
[0001] This disclosure relates to the field of optical technology, and in particular to a periscope lens module and electronic device. Background Technology
[0002] As users' demands for photography capabilities in electronic devices (such as mobile phones) have increased, telephoto lens modules have been integrated into these devices. These modules consist of multiple convex lenses arranged sequentially along the optical path, an infrared filter, and an image sensor, enabling telephoto shooting. However, the length of these convex lenses is considerable, occupying a significant amount of space. Due to the limited thickness of electronic devices, prisms are typically placed in the incident light path of the convex lenses, and the lenses are arranged sequentially along the length or width of the device. This allows light incident along the thickness of the device to be reflected by the prisms before entering the convex lenses. This process forms a periscope lens module.
[0003] However, the periscope lens module in related technologies only reduces its thickness dimension in the electronic device, but not its length or width dimension, thus not reducing the overall size of the lens module. Therefore, the periscope lens module still occupies a large space in the electronic device, which is not conducive to the arrangement of other components in the electronic device. Summary of the Invention
[0004] This disclosure provides a periscope lens module and an electronic device that can solve the technical problems existing in the related art. The technical solutions of the periscope lens module and the electronic device are as follows.
[0005] In a first aspect, this disclosure provides a periscope lens module, which includes a prism assembly, a lens assembly, and an imaging assembly;
[0006] The prism assembly has a convex incident surface, a flat reflecting surface, and a convex or concave exit surface. The prism assembly is used to converge light rays, and the imaging assembly is located in the exit light path of the lens assembly.
[0007] The lens assembly includes a plurality of convex lenses, which are arranged at intervals. All of the convex lenses are located between the prism assembly and the imaging assembly. Alternatively, a portion of the plurality of convex lenses are located between the prism assembly and the imaging assembly, while another portion is located on the incident light path of the lens assembly.
[0008] In one possible implementation, the prism assembly includes a prism and a lens;
[0009] The exit surface of the lens is in contact with the incident surface of the prism, and the incident surface of the lens is convex.
[0010] In one possible implementation, the prism has a plane as its incident surface and a concave surface as its exit surface.
[0011] In one possible implementation, the prism has a concave incident surface, and the lens has both a convex incident surface and an exiting surface.
[0012] In one possible implementation, the prism assembly includes a prism and a lens;
[0013] The incident surface of the prism is convex, and the incident surface of the lens is in contact with the exit surface of the prism.
[0014] In one possible implementation, the exit surface of the prism is a plane, and the exit surface of the lens is a concave surface.
[0015] In one possible implementation, the exit surface of the prism is concave, the incident surface of the lens is convex, and the exit surface is concave.
[0016] In one possible implementation, the exit surface of the prism is concave, and both the incident and exit surfaces of the lens are convex.
[0017] In one possible implementation, the thickness of the lens is 0.5mm-1mm.
[0018] In one possible implementation, the prism assembly includes a prism and two lenses, one lens having an incident surface that is convex and an exit surface that is in contact with the incident surface of the prism, and the other lens having an exit surface that is either convex or concave and an incident surface that is in contact with the exit surface of the prism.
[0019] In one possible implementation, the prism and the lens are bonded together with adhesive, and the refractive index of the prism, the refractive index of the adhesive, and the refractive index of the lens are the same.
[0020] In one possible implementation, the prism and the lens are bonded together with adhesive, and the refractive index of the prism is lower than that of the lens;
[0021] The refractive index of the glue is the same as that of the prism.
[0022] In one possible implementation, the reflective surface of the prism is coated with a metallic film, such as an aluminum or silver film. Alternatively, the reflective surface of the prism is coated with a dielectric film. This allows light to undergo total internal reflection at the reflective surface of the prism.
[0023] In one possible implementation, the refractive index of the prism is different from that of the lens.
[0024] In one possible implementation, the refractive index of the prism is greater than that of the lens;
[0025] The side of the prism that is attached to the lens has an anti-reflective coating.
[0026] In one possible implementation, the refractive index of the prism is less than that of the lens;
[0027] The side of the lens that is attached to the lens has an anti-reflective coating.
[0028] In one possible implementation, the prism and the lens are made of crown glass and flint glass, respectively.
[0029] In one possible implementation, the prism is a trapezoidal prism.
[0030] In one possible implementation, the focal length of the prism assembly is 100mm-200mm.
[0031] In a second aspect, this disclosure provides an electronic device comprising a periscope lens module as described in any of the first aspects.
[0032] In one possible implementation, the electronic device is a mobile phone.
[0033] The technical solution provided in this disclosure includes at least the following beneficial effects:
[0034] This disclosure provides a periscope lens module. On one hand, because the prism assembly can converge light, the spacing between adjacent convex lenses in the lens assembly can be reduced. This is beneficial for reducing the size of the lens assembly. On the other hand, by designing both the incident and exit surfaces of the prism assembly as curved surfaces, the incident and exit surfaces can be used as variables in the optical system optimization of the periscope lens module, increasing the overall optical degree of freedom of the periscope lens module. The higher the optical degree of freedom of the periscope lens module, the more beneficial it is to reduce the overall size of the periscope lens module. Experiments have shown that by adding convex and concave surfaces to the prism assembly, the thickness of the periscope lens module increases by 0.5mm-1mm, and the length decreases by 3mm-6mm. This reduces the overall size of the periscope lens module. It can reduce the space of the periscope lens module in electronic devices, which is beneficial for the arrangement of other components.
[0035] Furthermore, the increased degrees of freedom in the periscope lens module improve its image quality. Additionally, the addition of two curved surfaces to the periscope lens module increases the aperture of the entire optical system, allowing more light to enter and increasing shutter speed. Simultaneously, it also increases the MTF (Modulation Transfer Function) performance of the optical system, enhancing image sharpness.
[0036] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description
[0037] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure. In the drawings:
[0038] Figure 1 This is a schematic diagram of the structure of a periscope lens module shown in an embodiment of this disclosure;
[0039] Figure 2 This is a schematic diagram of the structure of a periscope lens module shown in an embodiment of this disclosure;
[0040] Figure 3 This is a schematic diagram of the structure of a prism assembly shown in an embodiment of the present disclosure;
[0041] Figure 4 This is a schematic diagram of the structure of a prism assembly shown in an embodiment of the present disclosure;
[0042] Figure 5 This is a schematic diagram of the structure of a prism assembly shown in an embodiment of the present disclosure;
[0043] Figure 6 This is a schematic diagram of the structure of a prism assembly shown in an embodiment of the present disclosure;
[0044] Figure 7 This is a schematic diagram of the structure of a prism assembly shown in an embodiment of the present disclosure;
[0045] Figure 8 This is a schematic diagram of the structure of a periscope lens module shown in an embodiment of this disclosure;
[0046] Figure 9 This is a schematic diagram of the structure of a periscope lens module shown in an embodiment of this disclosure.
[0047] Legend:
[0048] 1. Prism assembly;
[0049] 11. Prism;
[0050] 12. Lens;
[0051] 2. Lens assembly;
[0052] 21. Convex lens;
[0053] 3. Imaging components;
[0054] 31. Infrared filter;
[0055] 32. Image sensor.
[0056] The accompanying drawings have illustrated specific embodiments of this disclosure, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concepts of this disclosure to those skilled in the art through reference to particular embodiments. Detailed Implementation
[0057] To make the objectives, technical solutions, and advantages of this disclosure clearer, the embodiments of this disclosure will be further described in detail below with reference to the accompanying drawings.
[0058] The terminology used in the embodiments of this disclosure is for illustrative purposes only and is not intended to limit the disclosure. Unless otherwise defined, the technical or scientific terms used herein should be understood in their ordinary sense by one of ordinary skill in the art to which this disclosure pertains. The terms “first,” “second,” “third,” and similar terms used in this patent application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms “a” or “one,” and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms “comprising,” “including,” and similar terms mean that the elements or objects preceding “comprising” or “including” encompass the elements or objects listed following “comprising” or “including” and their equivalents, and do not exclude other elements or objects. The terms “connected,” “linked,” and similar terms are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. The terms “upper,” “lower,” “left,” “right,” etc., are used only to indicate relative positional relationships, and these relative positional relationships may change accordingly when the absolute position of the described object changes.
[0059] As users' demands for photography capabilities on electronic devices (such as mobile phones) have increased, telephoto lens modules have been integrated into these devices. These modules consist of multiple convex lenses arranged sequentially along the optical path, an infrared filter, and an image sensor, enabling telephoto shooting. The multiple convex lenses are quite long, occupying a significant amount of space. Due to the limited thickness of electronic devices, prisms are typically placed in the incident light path of the convex lenses, and the lenses are arranged sequentially along the length or width of the device. The prisms can bend the light path by 90°, allowing light rays incident along the thickness direction of the electronic device to be reflected by the prisms and enter the convex lenses. This forms a periscope lens module.
[0060] However, the periscope lens module in related technologies only reduces its thickness dimension in the electronic device, but not its length or width dimension, thus not reducing the overall size of the lens module. Therefore, the periscope lens module still occupies a large space in the electronic device, which is not conducive to the arrangement of other components in the electronic device.
[0061] In view of the above-mentioned technical problems, this disclosure provides a periscope lens module, such as... Figure 1 and Figure 2 As shown, the periscope lens module includes a prism assembly 1, a lens assembly 2, and an imaging assembly 3. The prism assembly 1 has a convex incident surface, a flat reflecting surface, and a convex or concave exit surface. The prism assembly 1 is used to converge light rays. The imaging assembly 3 is located in the exit light path of the lens assembly 2. The lens assembly 2 includes multiple convex lenses 21, which are arranged at intervals. All of the multiple convex lenses 21 are located between the prism assembly 1 and the imaging assembly 3, or a portion of the multiple convex lenses 21 are located between the prism assembly 1 and the imaging assembly 3, while another portion is located in the incident light path of the lens assembly 2.
[0062] The convex surface of prism assembly 1 has a protrusion height of 0.5mm-1mm. The incident surface of prism assembly 1 can be spherical or aspherical.
[0063] The number of convex lenses 21 in the lens assembly 2 can be 2-8. The lens assembly 2 also has a lens barrel on the outside to support the convex lenses 21.
[0064] The periscope lens module can be a visible light lens module. The imaging component 3 includes an infrared filter 31 and an image sensor 32. The infrared filter 31 is located between the lens assembly 21 and the image sensor 32. The infrared filter 31 is used to block infrared light from passing through and prevent infrared light from affecting the imaging quality of the image sensor 32.
[0065] The periscope lens module may also have a housing (not shown in the figure), and the prism assembly 1, lens assembly 2 and imaging assembly 3 are all fixed inside the housing. The housing may have a through hole, and the through hole is opposite to the incident surface of the prism assembly 1, so that light can enter the prism assembly 1.
[0066] The technical solution provided in this disclosure has two advantages. First, because the prism assembly 1 can converge light, the spacing between adjacent convex lenses 21 in the lens assembly 2 can be reduced. This is beneficial for reducing the size of the lens assembly 2. Second, by designing both the incident and exit surfaces of the prism assembly 1 as curved surfaces, the incident and exit surfaces can be used as variables in the optical system optimization of the periscope lens module, improving the overall optical freedom of the periscope lens module. The higher the optical freedom of the periscope lens module, the more beneficial it is for reducing the overall size of the periscope lens module. Experiments have shown that adding convex and concave surfaces to the prism assembly 1 increases the thickness of the periscope lens module by 0.5mm-1mm and reduces the length by 3mm-6mm. This reduces the overall size of the periscope lens module. This reduces the space required for the periscope lens module in electronic devices, which is beneficial for the arrangement of other components.
[0067] Furthermore, the increased degrees of freedom in the periscope lens module improve its image quality. Additionally, the addition of two curved surfaces to the periscope lens module increases the aperture of the entire optical system, from F3.4 to F2.49. This allows more light to enter the periscope lens module, increasing shutter speed. Simultaneously, it also increases the MTF (Modulation Transfer Function) performance of the optical system, improving image sharpness.
[0068] The implementation of prism component 1 will be illustrated below.
[0069] In some examples, such as Figure 3 As shown, the prism assembly 1 includes a prism 11 and a lens 12. The exit surface of the lens 12 is in contact with the incident surface of the prism 11, and the incident surface of the lens 12 is convex. The exit surface of the lens 12 can be bonded to the incident surface of the prism 11.
[0070] For example, such as Figure 3 As shown, the incident surface of prism 11 is a plane, and the exit surface is a concave surface.
[0071] Correspondingly, the exit surface of lens 12 is flat, and lens 12 is a plano-convex lens. This eliminates the need to process the incident surface of prism 11, allowing direct bonding of the exit surface of lens 12 to the incident surface of prism 11. Compared to processing a convex surface on the incident surface of prism 11, bonding lens 12 to the incident surface of prism 11 is a simpler process, enabling prism 11 to be manufactured as a single piece, simplifying the manufacturing process, improving prism yield, and reducing prism manufacturing costs. The thickness of the plano-convex lens can be 0.5mm-1mm.
[0072] Compared with setting the exit surface of prism 11 to be convex, setting the exit surface of prism 11 to be concave is a simpler process and also allows prism assembly 1 to have more curved surfaces, thereby giving the periscope lens module greater optical freedom.
[0073] In other examples, such as Figure 4 As shown, the incident surface of prism 11 can also be concave, and lens 12 is a biconvex lens. Lens 12 and prism 11 are glued together. The thickness of the biconvex lens can be 0.5mm-1mm. Thus, both the exit surface of lens 12 and the incident surface of prism 11 are curved surfaces, making prism assembly 1 a tri-curved prism, increasing the number of curved surfaces in prism assembly 1. This improves the optical freedom of prism assembly 1, thereby giving the periscope lens module a higher degree of freedom. This further improves the imaging quality of the periscope lens module, helping to reduce chromatic aberration, decrease distortion, and eliminate purple fringing in the image.
[0074] The prism assembly 1 described above is formed by attaching a lens 12 to the incident surface of the prism 11. In other examples, the lens 12 may also be attached to the exit surface of the prism 11.
[0075] In some examples, such as Figure 5 As shown, the prism assembly 1 includes a prism 11 and a lens 12. The incident surface of the prism 11 is convex, and the incident surface of the lens 12 is in contact with the exit surface of the prism 11.
[0076] For example, such as Figure 5 As shown, the exit surface of prism 11 is flat, and the exit surface of lens 12 is concave. Lens 12 is a plano-concave lens, wherein the thickness of the plano-concave lens can be 0.5mm-1mm. The incident surface of lens 12 is flat, and there is no need to process the exit surface of the prism. Lens 12 can be directly attached to the exit surface of prism 11, thus simplifying the manufacturing process of prism assembly 1.
[0077] In other examples, such as Figure 6 As shown, the exit surface of prism 11 is concave, and lens 12 is a double meniscus lens, meaning the incident surface is convex and the exit surface is concave. The thickness of the double meniscus lens can be 0.5mm-1mm. By cementing the incident surface of lens 12 and the exit surface of prism 11 together, the prism assembly 1 forms a tri-curved prism, increasing the number of curved surfaces in the prism assembly 1. This improves the optical degrees of freedom of the prism assembly 1, thereby giving the periscope lens module a higher degree of freedom. This further improves the imaging quality of the periscope lens module, helping to reduce chromatic aberration, decrease distortion, and eliminate purple fringing in the image.
[0078] In other examples, such as Figure 7As shown, lens 12 can also be a biconvex lens. This reduces the focal length of prism assembly 1, improves its light-gathering effect, and further reduces the spacing between adjacent convex lenses 21 in lens assembly 2. This helps to reduce the length of the periscope lens module. Furthermore, it allows prism assembly 1 to form a tri-curved prism, thereby increasing the periscope lens module's degree of freedom and improving its imaging quality.
[0079] In some examples, the exit surface of prism assembly 1 can also be a plane.
[0080] In other examples, the prism assembly 1 may consist of three parts. Specifically, the prism assembly 1 may include a prism 11 and two plano-convex lenses, which are respectively attached to the incident surface and the exit surface of the prism 11.
[0081] Alternatively, in other examples, prism assembly 1 may include prism 11, a plano-convex lens and a plano-concave lens, the plano-convex lens being fitted with the incident surface of prism 11 and the plano-concave lens being fitted with the exit surface of prism 11.
[0082] In other examples, the prism assembly 1 can also be a single, integral structure. A convex surface can be directly machined onto the incident surface of the prism, and a convex or concave surface can be directly machined onto the exit surface. This reduces the number of components in the periscope module and the number of steps required to assemble it.
[0083] In some examples, the refractive index of prism 11 is different from that of lens 12. In this way, prism assembly 1 can correct chromatic aberration at different wavelengths, so that light of different colors converges to the same point, reducing the impact of chromatic aberration and improving image clarity.
[0084] In some examples, the refractive index of prism 11 is greater than that of lens 12. The side of prism 11 that is attached to lens 12 has an anti-reflection coating. Since materials with higher refractive indices are more prone to reflection, an anti-reflection coating is needed on prism 11 to reduce light reflection loss. For example, if the exit surface of prism 11 is attached to lens 12, an anti-reflection coating needs to be applied to the exit surface of prism 11.
[0085] In other examples, if the refractive index of prism 11 is smaller than that of lens 12, then the side of lens 12 that is attached to prism 11 has an antireflection coating. For example, if the exit surface of prism 11 is attached to lens 12, then an antireflection coating needs to be deposited on the incident surface of lens 12.
[0086] In some examples, prism 11 and lens 12 are bonded together with adhesive. If the refractive indices of prism 11 and lens 12 are different, the refractive index of the adhesive should match the lower refractive index. For example, if the refractive index of prism 11 is less than that of lens 12, then the refractive index of the adhesive should match that of prism 11. This reduces light reflection loss. Furthermore, low-refractive-index adhesives are easier to obtain than high-refractive-index adhesives. Also, low-refractive-index adhesives have milder curing conditions.
[0087] If the refractive index of prism 11 and lens 12 are the same, then the refractive index of the glue should be the same as that of prism 11 to reduce light reflection loss.
[0088] In some examples, the refractive index of prism 11 and the refractive index of lens 12 are 1.5-1.9, and the Abbe number is 23-65.
[0089] In some examples, the reflecting surface of prism 11 is coated with a metallic film, such as an aluminum or silver film. Alternatively, the reflecting surface of prism 11 is coated with a dielectric film. This allows light to undergo total internal reflection at the reflecting surface of prism 11.
[0090] In some examples, prism 11 and lens 12 are made of crown glass and flint glass, respectively.
[0091] Crown glass, with its low refractive index and low dispersion coefficient, is commonly used in optical systems requiring high light transmittance and low dispersion. Flint glass, with its high refractive index and high dispersion coefficient, is commonly used in optical components requiring high refractive index and high dispersion, such as lenses in spectrometers and microscopes. The two materials have different refractive indices and Abbe numbers. Combining the two materials can correct chromatic aberration in imaging. Crown glass can be FK (Fluoride Crown), ZK (Zinc Crown), LAK (Lanthanum Crown), etc., while flint glass can be ZF (Zhong Flint Glass), LAF (Lanthanum Flint Glass), ZLAF (Zhong Lanthanum Flint Glass), etc.
[0092] For example, prism 11 may be made of crown glass and lens 12 may be made of flint glass.
[0093] In other examples, prism 11, lens 12 and convex lens 21 may be made of the same material, which is specifically limited in this embodiment of the present disclosure.
[0094] In some examples, the focal length of prism assembly 1 is 100mm-200mm. Since prism assembly 1 already has a certain focal length, lens assembly 2 can have a smaller focal length. The smaller the spacing between the convex lenses 21 in lens assembly 2, the smaller the focal length of lens assembly 2, therefore the spacing between the convex lenses 21 can be reduced.
[0095] This disclosure does not specifically limit the distribution of the multiple convex lenses 21 in the lens assembly 2; the positions of the multiple convex lenses 21 can be set according to the internal space of the electronic device. For example, as Figure 1 As shown, if the width or length of the electronic device is large but the thickness is small, multiple convex lenses 21 can be placed between the prism assembly 1 and the imaging assembly 3.
[0096] If the width or length of an electronic device is small but its thickness is large, such as Figure 2 As shown, a portion of the convex lens 21 can be placed in the incident light path of the prism assembly 1. Alternatively, as... Figure 8 As shown, multiple convex lenses 21 in the lens assembly 2 can be arranged sequentially on the incident light path of the prism assembly 1.
[0097] This disclosure does not limit the specific shape of the prism 11 in the prism assembly 1. As mentioned above, the prism 11 has one incident surface, one reflecting surface, and one exiting surface. In other examples, the prism 11 may also have two reflecting surfaces. For example... Figure 9 As shown, prism 11 can be a trapezoidal prism, with its incident and exit surfaces parallel or located on the same plane, and the two reflecting surfaces arranged opposite each other. Lens 12 can be a plano-convex lens, with lens 12 in contact with the incident surface of prism 11, and the exit surface of prism 11 can be a plane.
[0098] This disclosure also provides an electronic device, characterized in that the electronic device includes the periscope lens module described above.
[0099] Among them, electronic devices can be devices such as mobile phones or tablets that can perform shooting functions.
[0100] The electronic device provided in this disclosure has a smaller overall size of periscope lens module, thus reducing the space occupied by the periscope lens module in the electronic device and allowing more space to be arranged for other devices in the electronic device.
[0101] The above description is merely an optional embodiment of this disclosure and is not intended to limit this disclosure. Any modifications, equivalent substitutions, improvements, etc., made within the principles of this disclosure should be included within the protection scope of this disclosure.
Claims
1. A periscope lens module, characterized in that, The periscope lens module includes a prism assembly (1), a lens assembly (2), and an imaging assembly (3); The prism assembly (1) has a convex incident surface, a flat reflecting surface, and a convex or concave exit surface. The prism assembly (1) is used to converge light rays, and the imaging assembly (3) is located in the exit light path of the lens assembly (2). The lens assembly (2) includes a plurality of convex lenses (21), which are arranged at intervals. The plurality of convex lenses (21) are all located between the prism assembly (1) and the imaging assembly (3), or a portion of the plurality of convex lenses (21) are located between the prism assembly (1) and the imaging assembly (3), and another portion is located on the incident light path of the lens assembly (2).
2. The periscope lens module according to claim 1, characterized in that, The prism assembly (1) includes a prism (11) and a lens (12); The exit surface of the lens (12) is in contact with the incident surface of the prism (11), and the incident surface of the lens (12) is convex.
3. The periscope lens module according to claim 2, characterized in that, The prism (11) has a plane incident surface and a concave exit surface.
4. The periscope lens module according to claim 1, characterized in that, The prism assembly (1) includes a prism (11) and a lens (12); The incident surface of the prism (11) is convex, and the incident surface of the lens (12) is in contact with the exit surface of the prism (11).
5. The periscope lens module according to claim 4, characterized in that, The exit surface of the prism (11) is a plane, and the exit surface of the lens (12) is a concave surface.
6. The periscope lens module according to claims 2-5, characterized in that, The refractive index of the prism (11) is different from that of the lens (12).
7. The periscope lens module according to claim 4, characterized in that, The refractive index of the prism (11) is greater than that of the lens (12); The prism (11) has an anti-reflective coating on the side that is attached to the lens (12).
8. The periscope lens module according to claim 5, characterized in that, The prism (11) and the lens (12) are made of crown glass and flint glass, respectively.
9. The periscope lens module according to claim 1, characterized in that, The focal length of the prism assembly (1) is 100mm-200mm.
10. An electronic device, characterized in that, The electronic device includes a periscope lens module as described in any one of claims 1-9.