CN114815159B

CN114815159B - Image capturing module and electronic equipment

Info

Publication number: CN114815159B
Application number: CN202210487711.0A
Authority: CN
Inventors: 陈嘉伟; 韦怡; 李响; 高玉婵; 王文涛
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2022-05-06
Filing date: 2022-05-06
Publication date: 2024-01-16
Anticipated expiration: 2042-05-06
Also published as: CN114815159A

Abstract

The application discloses an image capturing module and electronic equipment. The image capturing module sequentially comprises a first lens, a diaphragm, a second lens, a third lens, a fourth lens, a fifth lens and an image sensor from an object side to an image side. The first lens has a negative refractive power. The second lens has positive refractive power. The third lens has a negative refractive power. The fourth lens has positive refractive power. The fifth lens has a negative refractive power. The image capturing module meets the following conditional expression: 0.8< |TTL/diag| <1.2; TTL is the on-axis distance from the object side surface of the first lens to the imaging surface of the image capturing module, and Diag is the diagonal length of the image sensor. Five lenses in the image capturing module have reasonable thickness configuration, and the image sensor has reasonable size, so that the ratio of the total optical length of the image capturing module to the diagonal length of the image sensor is in a reasonable range, and therefore, two lenses are not required to be arranged, and the micro-distance function and the micro-function can be realized through the same image capturing module, thereby not only reducing the cost, but also saving the space in the electronic equipment.

Description

Image capturing module and electronic equipment

Technical Field

The present disclosure relates to optical imaging technologies, and in particular, to an imaging module and an electronic device.

Background

At present, the micro-distance function of electronic equipment such as a mobile phone, a PAD and the like is realized by focusing an ultra-wide-angle lens on an object with a short distance (such as about 3 cm), and the micro-distance function required by a user is realized because the focal length of the ultra-wide-angle lens is still larger and cannot be focused on a closer distance. In addition, as the size of an image sensor in an electronic device, which is matched with an ultra-wide angle lens, is continuously increasing, the focal length of the ultra-wide angle lens is also increasing, and focusing to 3cm is also difficult, so that it is also becoming more difficult to realize a macro function. On the other hand, the microscope lens on the electronic equipment is usually a fixed focus lens and has no automatic focusing function, and the working scene is relatively single.

Therefore, to implement the macro function and the micro function on the electronic device at the same time, at least two lenses are required to implement the macro function and the micro function, which results in an increase in cost and occupies more space inside the electronic device.

Disclosure of Invention

The embodiment of the application provides an image capturing module and electronic equipment, which are used for at least solving the problem of how to realize a micro-distance function and a microscopic function at the same time.

An image capturing module according to an embodiment of the present disclosure includes, in order from an object side to an image side, a first lens element, a diaphragm, a second lens element, a third lens element, a fourth lens element, a fifth lens element and an image sensor. The first lens has a negative refractive power. The second lens has positive refractive power. The third lens has a negative refractive power. The fourth lens has positive refractive power. The fifth lens has a negative refractive power. The image capturing module meets the following conditional expression: 0.8< |TTL/diag| <1.2; wherein TTL is the axial distance from the object side surface of the first lens to the imaging surface of the image capturing module, and Diag is the diagonal length of the image sensor.

The electronic equipment of the embodiment of the application comprises a shell and an image capturing module. The image capturing module sequentially comprises a first lens, a diaphragm, a second lens, a third lens, a fourth lens, a fifth lens and an image sensor from an object side to an image side. The first lens has a negative refractive power. The second lens has positive refractive power. The third lens has a negative refractive power. The fourth lens has positive refractive power. The fifth lens has a negative refractive power. The image capturing module meets the following conditional expression: 0.8< |TTL/diag| <1.2; wherein TTL is the axial distance from the object side surface of the first lens to the imaging surface of the image capturing module, and Diag is the diagonal length of the image sensor. The image capturing module is combined with the shell.

In the image capturing module and the electronic device, the first lens, the second lens, the third lens, the fourth lens and the fifth lens are provided with reasonable thickness configuration, the image sensor is provided with reasonable size, the ratio between the total optical length of the image capturing module and the diagonal length of the image sensor is in a reasonable range, and therefore two lenses are not required to be arranged, the micro-distance function and the micro-function can be achieved simultaneously through the same image capturing module, the cost is reduced, and meanwhile the space inside the electronic device can be saved.

Additional aspects and advantages of embodiments of the application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of embodiments of the application.

Drawings

The foregoing and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:

fig. 1 is a schematic structural diagram of an image capturing module according to a first embodiment of the present disclosure;

fig. 2 is an MTF lens resolution performance chart of the image capturing module in the macro mode according to the first embodiment;

FIG. 3 is a graph of lateral chromatic aberration (mm) of the image capturing module in macro mode according to the first embodiment;

fig. 4 and 5 are an astigmatic field curve (mm) and a distortion curve (%) of the image capturing module in the macro mode according to the first embodiment, respectively;

fig. 6 is an MTF lens resolution performance chart of the image capturing module in the microscopic mode according to the first embodiment;

FIG. 7 is a graph of lateral chromatic aberration (mm) of the imaging module in the microscopic mode in the first embodiment;

fig. 8 and 9 are an astigmatic field curve (mm) and a distortion curve (%) of the imaging module in the microscopic mode in the first embodiment, respectively;

fig. 10 is a schematic structural diagram of an image capturing module according to a second embodiment of the present disclosure;

fig. 11 is an MTF lens resolution performance diagram of the image capturing module in the macro mode according to the second embodiment;

FIG. 12 is a graph of lateral chromatic aberration (mm) of the imaging module in macro mode in the second embodiment;

fig. 13 and 14 are an astigmatic field curve (mm) and a distortion curve (%) of the image capturing module in the macro mode according to the second embodiment, respectively;

fig. 15 is an MTF lens resolution performance diagram of the image capturing module in the microscopic mode according to the second embodiment;

FIG. 16 is a graph of lateral chromatic aberration (mm) of the imaging module in a microscopic mode in the second embodiment;

fig. 17 and 18 are an astigmatic field curve (mm) and a distortion curve (%) of the imaging module in the microscopic mode in the second embodiment, respectively;

fig. 19 is a schematic structural diagram of an imaging module according to a third embodiment of the present application;

fig. 20 is an MTF lens resolution performance diagram of the image capturing module in the macro mode according to the third embodiment;

FIG. 21 is a graph of lateral chromatic aberration (mm) of the imaging module in macro mode in the third embodiment;

fig. 22 and 23 are an astigmatic field curve (mm) and a distortion curve (%) of the image capturing module in the macro mode in the third embodiment, respectively;

fig. 24 is an MTF lens resolution performance chart of the image capturing module in the microscopic mode according to the third embodiment;

FIG. 25 is a graph of lateral chromatic aberration (mm) of the imaging module in a microscopic mode in the third embodiment;

fig. 26 and 27 are an astigmatic field curve (mm) and a distortion curve (%) of the imaging module in the microscopic mode in the third embodiment, respectively;

fig. 28 is a schematic structural diagram of an electronic device according to an embodiment of the present application.

Description of main reference numerals:

electronic device 100

A first lens L1, a stop STO, a second lens L2, a third lens L3, a fourth lens L4, and a fifth lens L5;

an image capturing module 20, an image sensor 22, a cover plate 24, and an optical filter/cover glass 26.

Detailed Description

Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the embodiments of the present application and are not to be construed as limiting the embodiments of the present application.

At present, the micro-distance function of electronic equipment such as a mobile phone, a PAD and the like is realized by focusing an ultra-wide-angle lens on an object with a short distance (such as about 3 cm), and the micro-distance function required by a user is realized because the focal length of the ultra-wide-angle lens is still larger and cannot be focused on a closer distance. In addition, as the size of an image sensor in an electronic device, which is matched with an ultra-wide angle lens, is continuously increasing, the focal length of the ultra-wide angle lens is also increasing, and focusing to 3cm is also difficult, so that it is also becoming more difficult to realize a macro function. On the other hand, the microscope lens on the electronic equipment is usually a fixed focus lens and has no automatic focusing function, and the working scene is relatively single. Therefore, to implement the macro function and the micro function on the electronic device at the same time, at least two lenses are required to implement the macro function and the micro function, which results in an increase in cost and occupies more space inside the electronic device. To solve this problem, the present application provides an image capturing module 20 and an image capturing method of an electronic device 100.

Referring to fig. 1, 10 and 19, the image capturing module 20 according to the embodiment of the present application includes, in order from an object side to an image side, a first lens element L1, a stop STO, a second lens element L2, a third lens element L3, a fourth lens element L4, a fifth lens element L5 and an image sensor 22. The first lens L1 has a negative refractive power. The second lens L2 has positive refractive power. The third lens L3 has a negative refractive power. The fourth lens L4 has positive refractive power. The fifth lens L5 has a negative refractive power.

The stop STO may be an aperture stop or a field stop. In the present embodiment, the stop STO is an aperture stop as an example. The stop STO may be disposed between the first lens L1 and the subject, or on the surface of any one lens, or between any two lenses. In this embodiment of the application, the stop STO is disposed between the first lens L1 and the second lens L2, so that the light incoming amount can be better controlled, and the imaging effect can be improved.

The image capturing module 20 satisfies the following condition: 0.80< |TTL/diag| <1.20; wherein TTL is the axial distance from the object side surface 3 of the first lens element L1 to the image plane 16 of the image capturing module 20, and Diag is the diagonal length of the image sensor 22. That is, |TTL/flag| may be any value within the interval (0.800,1.200), for example, the value may be 0.821, 0.832, 0.844, 0.855, 0.866, 0.875, 0.885, 0.905, 0.953, 0.994, 1.005, 1.021, 1.155, 1.166, 1.198, and the like.

In the image capturing module 20 of the present application, the first lens L1, the second lens L2, the third lens L3, the fourth lens L4, and the fifth lens L5 have reasonable thickness configuration, and the image sensor 22 has reasonable dimensions, so that the ratio between the total optical length of the image capturing module and the diagonal length of the image sensor 22 is in a reasonable range, and thus two lenses are not required to be set, so that the micro-distance function and the micro-function can be simultaneously realized through the same image capturing module 20, and the space inside the electronic device 100 (shown in fig. 28) can be saved while the cost is reduced.

In some embodiments, the image capturing module 20 satisfies the following condition: 0.3< |f/f1| <0.6; wherein f1 is a focal length of the first lens element L1, and f is a system focal length of the image capturing module 20. That is, |f/f1| may be any number within the interval (0.3, 0.6), for example, the value may be 0.547, 0.754, 0.935, 0.937, 1.271, 1.329, 1.343, 1.362, 1.368, 1.464, 1.585, and so on.

When the image capturing module 20 satisfies the condition 0.3< |f/f1| <0.6, the first lens L1 provides negative refractive power, and reasonably distributes positive and negative refractive power of the image capturing module 20, so that spherical aberration of the image capturing module 20 can be effectively balanced and controlled, aberration of the image capturing module 20 can be corrected, chromatic aberration of the image capturing module 20 can be effectively eliminated, sensitivity of the image capturing module 20 can be reduced, and imaging quality of the image capturing module 20 can be improved.

In some embodiments, the image capturing module 20 satisfies the following condition: 0.7< |f/f2| <1.5; wherein f2 is the focal length of the second lens element L2, and f is the system focal length of the image capturing module 20. That is, |f/f2| may be any number within the interval (0.7,1.5), for example, the value may be 0.747, 0.754, 0.935, 0.937, 1.271, 1.329, 1.343, 1.362, 1.368, 1.464, 1.485, and the like.

When the image capturing module 20 satisfies the condition 0.7< |f/f2| <1.5, the second lens L2 provides positive refractive power, and reasonably distributes the positive refractive power and the negative refractive power of the image capturing module 20, so that the spherical aberration of the image capturing module 20 can be effectively balanced and controlled, the aberration of the image capturing module 20 can be corrected, the chromatic aberration of the image capturing module 20 can be effectively eliminated, the sensitivity of the image capturing module 20 can be reduced, and the imaging quality of the image capturing module 20 can be improved.

In some embodiments, the image capturing module 20 satisfies the following condition: 0.3< |f/f3| <0.7; wherein f3 is the focal length of the third lens element L3, and f is the system focal length of the image capturing module 20. That is, |f/f3| may be any value within the interval (0.3, 0.7), for example, the value may be 0.347, 0.354, 0.335, 0.337, 0.427, 0.459, 0.500, 0.560, 0.580, 0.600, 0.620, 0.680, and the like.

When the image capturing module 20 satisfies the condition 0.3< |f/f3| <0.7, the third lens L3 provides negative refractive power, and reasonably distributes positive and negative refractive power of the image capturing module 20, so that spherical aberration of the image capturing module 20 can be effectively balanced and controlled, aberration of the image capturing module 20 can be corrected, chromatic aberration of the image capturing module 20 can be effectively eliminated, sensitivity of the image capturing module 20 can be reduced, and imaging quality of the image capturing module 20 can be improved.

In some embodiments, the image capturing module 20 satisfies the following condition: 1.0< |f/f4| <3.0; wherein f4 is the focal length of the fourth lens element L4, and f is the system focal length of the image capturing module 20. That is, |f/f4| may be any number within the interval (1.0,3.0), for example, the value may be 1.747, 1.754, 1.935, 1.937, 2.271, 2.329, 2.343, 2.362, 2.368, 2.464, 2.485, 2.555, 2.652, 2.685, 2.885, 2.965, and the like.

When the image capturing module 20 satisfies the condition 1.0< |f/f4| <3.0, the fourth lens L4 provides positive refractive power, the positive refractive power and the negative refractive power of the image capturing module 20 are reasonably distributed, spherical aberration of the image capturing module 20 can be effectively balanced and controlled, aberration of the image capturing module 20 is corrected, chromatic aberration of the image capturing module 20 is effectively eliminated, sensitivity of the image capturing module 20 is reduced, and imaging quality of the image capturing module 20 is improved.

In some embodiments, the image capturing module 20 satisfies the following condition: 0.8< |f/f5| <2.5; wherein f5 is a focal length of the fifth lens element L5, and f is a system focal length of the image capturing module 20. That is, |f/f5| may be any number within the interval (0.8,2.5), for example, the value may be 0.847, 0.854, 0.935, 1.837, 1.827, 1.959, 1.999, 2.060, 2.180, 2.200, 2.320, 2.480, and so on.

When the image capturing module 20 satisfies the condition 0.8< |f/f5| <2.5, the fifth lens L5 provides negative refractive power, and reasonably distributes positive and negative refractive power of the image capturing module 20, so that spherical aberration of the image capturing module 20 can be effectively balanced and controlled, aberration of the image capturing module 20 can be corrected, chromatic aberration of the image capturing module 20 can be effectively eliminated, sensitivity of the image capturing module 20 can be reduced, and imaging quality of the image capturing module 20 can be improved.

In some embodiments, when the image capturing module 20 is in the macro mode, the magnification X1 of the object imaged on the image sensor 22 satisfies the following condition: x1 is more than or equal to 0.01 and less than or equal to 0.15, wherein the magnification is the ratio of the image height of the object to the object height. Therefore, the requirements of users on high pixels and miniaturization of the image capturing module 20 can be met, and the macro shooting function can be realized.

In some embodiments, when the image capturing module 20 is in the microscopic mode, the magnification X2 of the object imaged on the image sensor 22 satisfies the following condition: x2 is more than or equal to 0.30 and less than or equal to 0.80, wherein the magnification is the ratio of the image height of the object to the object height. Therefore, the requirements of users on high pixels and miniaturization of the image capturing module 20 can be met, and the microscopic shooting function can be realized.

In some embodiments, the image capturing module 20 may further include a cover 24. The cover plate 24 is disposed on the object side surface 3 of the first lens L1. In one embodiment, the cover 24 is a protective cover of the image capturing module 20, that is, the cover 24 is located at the outermost side of the image capturing module 20, and protects the first lens L1, the stop STO, the second lens L2, the third lens L3, the fourth lens L4, the fifth lens L5, and the image sensor 22, including waterproof, dustproof, and anti-falling. In other embodiments, the cover plate 24 may be embedded with a heating element, for example, a heating wire, when the heating wire is electrified, the heating wire will generate heat, and when the image capturing module 20 works in a lower temperature environment, the heat emitted by the heating wire can play a demisting role, so that the imaging quality when the image capturing module is photographed at a lower temperature is improved.

In some embodiments, the image capturing module 20 may further include a filter 26. The filter 26 is disposed between the fifth lens L5 and the image sensor 22 for filtering light with a specific wavelength. In the embodiment of the present application, the filter 26 is an infrared filter 26. When the image capturing module 20 is used for imaging, light emitted or reflected by a subject enters the image capturing module 20 from an object side direction, and sequentially passes through the first lens element L1, the second lens element L2, the third lens element L3, the fourth lens element L4, the fifth lens element L5, the object side surface 13 and the image side surface 14 of the infrared filter 26, and finally converges on the imaging surface 16 of the image sensor 22. At this time, the stop STO may also be disposed between the fifth lens L5 and the filter 26.

In some embodiments, the imaging module 20 may further include a cover glass 26. The cover glass 26 is disposed between the fifth lens L5 and the image sensor 22. In the embodiment of the present application, the protection glass 26 is used for protecting the image sensor 22 to prolong the service life of the image capturing module 20.

In some embodiments, the first to fifth lenses L1 to L5 are plastic lenses or glass lenses. In the first to third embodiments of the present application, the first to fifth lenses L1 to L5 may be glass lenses. In this way, the imaging module 20 can achieve ultra-thin performance while correcting aberration and solving the temperature drift problem through reasonable configuration of the materials of the lens. In the first to third embodiments of the present application, the first to fifth lenses L1 to L5 may be plastic lenses. In this way, the image capturing module 20 can save cost while correcting aberration through reasonable configuration of materials of the lens.

In some embodiments, the first lens L1 has an object-side surface 3 and an image-side surface 4. The second lens L2 has an object side surface 6 and an image side surface 7. The third lens L3 has an object side surface 8 and an image side surface 9. The fourth lens element L4 has an object-side surface 10 and an image-side surface 11. The fifth lens element L5 has an object-side surface 12 and an image-side surface 13. At least one surface of the first lens L1 to the fifth lens L5 in the image capturing module 20The surface is an aspheric surface. For example, in the first to third embodiments, the object side surface and the image side surface of each of the first to fifth lenses L1 to L5 are aspherical surfaces. The aspherical surface shape is determined by the following formula: when the Z aspheric surface is at the position with the height h along the optical axis direction, the distance vector from the vertex of the aspheric surface is high; h is the distance from any point on the aspherical surface to the optical axis, c is the vertex curvature (the inverse of the radius of curvature, 1/R), k is the conic coefficient (constant), and Ai is the correction coefficient of the i-th order of the aspherical surface.

Therefore, the imaging module 20 can effectively reduce the total length of the imaging module 20 by adjusting the curvature radius and the aspheric coefficients of the surfaces of the lenses, and can effectively correct the aberration and improve the imaging quality.

First embodiment

Referring to fig. 1 to 9, from the object side to the image side, the image capturing module 20 of the first embodiment includes, in order, a cover plate 24, a first lens L1, a stop STO, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5, an optical filter/protective glass 26, and an image sensor 22.

The first lens L1 has a negative refractive power. The second lens L2 has positive refractive power. The third lens L3 has a negative refractive power. The fourth lens L4 has positive refractive power. The fifth lens L5 has a negative refractive power. The object side surface and the image side surface of the first lens element L1 to the fifth lens element L5 are aspheric.

The optical filter 26 is an infrared optical filter and made of glass, and is disposed between the fifth lens L5 and the imaging surface 16 of the image sensor 22, and does not affect the focal length of the image capturing module 20.

In the first embodiment, the focal length of the image capturing module 20 is f=1.93 mm. In macro mode, for example, when the object distance is 3cm, the system length (Total Track Length, TTL) is 4.23mm, the optical back focus BFL is 0.75mm, the Field angle (FOV) at the maximum image height is 83.5 degrees, and the aperture value (f-number) is 3.2. In the microscopic mode, for example, when the object distance is 5mm, TTL is 5.11mm, BFL is 1.63mm, the angle of view at the maximum image height is 69.8 degrees, and the aperture value is 3.9.

The image capturing module 20 satisfies the following table conditions:

TABLE 1

TABLE 2

Second embodiment

Referring to fig. 10 to 18, the image capturing module 20 of the second embodiment includes, in order from an object side to an image side, a cover plate 24, a first lens L1, a stop STO, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5, an optical filter/protective glass 26, and an image sensor 22.

In the second embodiment, the focal length of the image capturing module 20 is f=1.83 mm. In the macro mode, for example, when the object distance is 3cm, TTL is 4.19mm, optical back focus BFL is 0.65mm, field angle (FOV) at the maximum image height is 86.4 degrees, and aperture value (f-number) is 3.2. In microscopic mode, for example, the object distance is 5mm, TTL is 4.83mm, BFL is 1.29mm, the field angle at the maximum image height is 73.4 degrees, and the aperture value is 3.9.

The image capturing module 20 satisfies the following table conditions:

TABLE 3 Table 3

TABLE 4 Table 4

Third embodiment

Referring to fig. 19 to 27, the image capturing module 20 of the second embodiment includes, in order from an object side to an image side, a cover plate 24, a first lens L1, a stop STO, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5, a filter/cover glass 26, and an image sensor 22.

In the third embodiment, the focal length of the image capturing module 20 is f=1.64 mm. In the macro mode, for example, when the object distance is 3cm, TTL is 3.73mm, optical back focus BFL is 0.65mm, field angle (FOV) at the maximum image height is 94.6 degrees, and aperture value (f-number) is 3.2. In microscopic mode, for example, the object distance is 5mm, TTL is 4.21mm, BFL is 1.13mm, the field angle at the maximum image height is 83.3 degrees, and the aperture value is 3.9.

The image capturing module 20 satisfies the following table conditions:

TABLE 5

TABLE 6

Referring to fig. 28, the electronic device 100 includes a housing 40 and the image capturing module 20 of the above embodiment. The image capturing module 20 is mounted on the housing 40 to capture an image.

Referring to fig. 1, 10 and 19, the electronic device 100 according to the embodiment of the present application can ensure miniaturization of the image capturing module 20 while obtaining excellent imaging quality. In addition, the image capturing module 20 enlarges the size of the relative aperture and increases the light incoming amount through the diaphragm arranged between the first lens L1 and the second lens L2, which is beneficial to obtaining a display image with fewer noise and better image quality. Further, the image capturing module 20 satisfies the condition 0.80< |ttl/flag| <1.20, the first lens L1, the second lens L2, the third lens L3, the fourth lens L4, and the fifth lens L5 have reasonable thickness configuration, and the image sensor 22 has reasonable dimensions, so that the ratio between the total optical length of the image capturing module and the diagonal length of the image sensor 22 is in a reasonable range, and thus the micro-distance function and the micro-function can be realized simultaneously by the same image capturing module 20 without setting two lenses, thereby reducing the cost and saving the space inside the electronic device 100.

The electronic apparatus 100 of the embodiment of the present application includes, but is not limited to, information terminal apparatuses such as a smart phone, a tablet computer, a notebook computer, a personal computer (personal computer, PC), an electronic book reader, a Portable Multimedia Player (PMP), a portable telephone, a video phone, a camera, a digital still camera, a game machine, an ambulatory medical device, a smart watch, a wearable apparatus, or a home appliance having a photographing function, and the like.

In the description of the present specification, reference to the terms "certain embodiments," "one embodiment," "some embodiments," "an exemplary embodiment," "an example," "a particular example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" is at least two, such as two, three, etc., unless explicitly defined otherwise.

Although embodiments of the present application have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the application, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the application, which is defined by the claims and their equivalents.

Claims

1. An image capturing module, comprising, in order from an object side to an image side:

a first lens having a negative refractive power;

a diaphragm;

a second lens having a positive refractive power;

a third lens having a negative refractive power;

a fourth lens having a positive refractive power;

a fifth lens having a negative refractive power; and

an image sensor;

the image capturing module meets the following conditional expression:

0.8<|TTL/Diag|<1.2；

wherein TTL is an on-axis distance from an object side surface of the first lens to an imaging surface of the image capturing module, and Diag is a diagonal length of the image sensor;

when the image capturing module is in the macro mode, the magnification X1 of the object imaged on the image sensor meets the following conditional expression:

x1 is more than or equal to 0.01 and less than or equal to 0.15, wherein the magnification is the ratio of the image height to the object height of the object;

when the image capturing module is in a microscopic mode, the magnification X2 of the object imaged on the image sensor meets the following conditional expression:

x2 is more than or equal to 0.30 and less than or equal to 0.80, wherein the magnification is the ratio of the image height to the object height of the object.

2. The imaging module of claim 1, wherein the imaging module further satisfies the following conditional expression:

0.3< |f/f1| <0.6; wherein f1 is the focal length of the first lens, and f is the focal length of the image capturing module.

3. The imaging module of claim 1, wherein the imaging module further satisfies the following conditional expression:

0.7< |f/f2| <1.5; wherein f2 is the focal length of the second lens, and f is the focal length of the image capturing module.

4. The imaging module of claim 1, wherein the imaging module further satisfies the following conditional expression:

0.3< |f/f3| <0.7; wherein f3 is the focal length of the third lens, and f is the focal length of the image capturing module.

5. The imaging module of claim 1, wherein the imaging module further satisfies the following conditional expression:

1.0< |f/f4| <3.0; wherein f4 is the focal length of the fourth lens, and f is the focal length of the image capturing module.

6. The imaging module of claim 1, wherein the imaging module further satisfies the following conditional expression:

0.8< |f/f5| <2.5; wherein f5 is the focal length of the fourth lens, and f is the focal length of the image capturing module.

7. The image capturing module of claim 1, wherein an object-side surface and an image-side surface of any one of the first lens element, the second lens element, the third lens element, the fourth lens element and the fifth lens element are aspheric.

8. The imaging module of claim 1, further comprising:

the optical filter is positioned between the fifth lens and the image sensor and is used for filtering light rays with specific wavelengths; or (b)

And the protective glass is positioned between the fifth lens and the image sensor and is used for protecting the image sensor.

9. An electronic device, the electronic device comprising:

a housing; and

the imaging module of any one of claims 1-8, the imaging module being coupled to the housing.