CN212255858U

CN212255858U - Lens module and electronic equipment

Info

Publication number: CN212255858U
Application number: CN202021062317.5U
Authority: CN
Inventors: 韦怡
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2020-06-10
Filing date: 2020-06-10
Publication date: 2020-12-29
Anticipated expiration: 2030-06-10

Abstract

The present disclosure relates to a lens module and an electronic device, the lens module includes: the camera lens comprises a transparent cover plate, a first lens and a second lens; the first lens is arranged on one side of the transparent cover plate, and external light can enter the first lens through the transparent cover plate; the second lens is arranged on one side, far away from the transparent cover plate, of the first lens and used for receiving light transmitted by the first lens and imaging on an image surface of the second lens, the optical magnification RED of the lens module is larger than or equal to 1, and the conjugate distance of the lens module is smaller than or equal to a preset distance threshold value, so that macro-imaging can be achieved.

Description

Lens module and electronic equipment

Technical Field

The present disclosure relates to the technical field of electronic devices, and particularly, to a lens module and an electronic device.

Background

With the development and progress of the technology, people have higher and higher requirements on the shooting function of the electronic equipment. For example, it is desirable that electronic devices such as mobile phones can take macro shots. At present, in order to enable electronic equipment to realize macro photography, a camera of the electronic equipment is usually externally connected with a lens, and the macro photography is realized through the externally connected lens. The external lens realizes that macro is shot and needs to set up solitary external lens, and external lens and electronic equipment separation lead to external lens and electronic equipment's camera lens counterpoint difficulty, and then make the operation complicated when shooing.

It is to be noted that the information disclosed in the above background section is only for enhancement of understanding of the background of the present disclosure, and thus may include information that does not constitute prior art known to those of ordinary skill in the art.

Disclosure of Invention

An object of the present disclosure is to provide a lens module and an electronic device, so as to overcome the problem that the separation of an external lens and the electronic device is difficult to align the lens of the external lens and the electronic device, and further the operation is complicated when taking a picture.

According to an aspect of the present disclosure, there is provided a lens module including:

a transparent cover plate;

the first lens is arranged on one side of the transparent cover plate, and external light can enter the first lens through the transparent cover plate;

the second lens is arranged on one side, away from the transparent cover plate, of the first lens and is used for receiving the light transmitted by the first lens and imaging on an image surface of the second lens;

the optical magnification RED of the lens module is more than or equal to 1, and the conjugate distance of the lens module is less than or equal to a preset distance threshold.

According to another aspect of the present disclosure, an electronic device is provided, which includes the lens module.

According to the lens module provided by the embodiment of the disclosure, light reflected by an object to be shot enters the first lens through the transparent cover plate, then enters the second lens, and finally forms an image on an image surface, and the optical magnification RED of the lens module is greater than or equal to 1, so that macro shooting can be realized; and the lens module can set up inside electronic equipment, has solved the camera lens of external camera lens and electronic equipment counterpoint difficulty when taking a picture in the macro in the correlation technique, operation complicated problem when leading to shooing.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure. It is to be understood that the drawings in the following description are merely exemplary of the disclosure, and that other drawings may be derived from those drawings by one of ordinary skill in the art without the exercise of inventive faculty.

Fig. 1 is a schematic view of a lens module according to an exemplary embodiment of the disclosure;

fig. 2 is a schematic view of a first lens provided in an exemplary embodiment of the present disclosure;

fig. 3 is a schematic view of a second lens provided in an exemplary embodiment of the present disclosure;

fig. 4a is a chromatic aberration diagram of a first lens provided in an exemplary embodiment of the present disclosure;

fig. 4b is a curvature of field diagram of a first lens provided in an exemplary embodiment of the present disclosure;

fig. 4c is a distortion diagram of a first lens provided in an exemplary embodiment of the present disclosure;

fig. 5a is a chromatic aberration diagram of a second lens provided in an exemplary embodiment of the present disclosure;

fig. 5b is a curvature of field diagram of a second lens provided in an exemplary embodiment of the present disclosure;

fig. 5c is a distortion diagram of a second lens provided in an exemplary embodiment of the present disclosure;

fig. 6 is a schematic diagram of an electronic device according to an exemplary embodiment of the present disclosure.

In the figure:

100. a lens module; 110. a transparent cover plate; 120. a first lens; 121. a first lens; 122. a second lens; 123. a third lens; 140. a second lens; 141. a fourth lens; 142. a fifth lens; 143. a sixth lens; 150. a motion assembly; 160. a light guide assembly;

10. a display screen; 11. a display area; 12. a non-display area; 20. a frame; 30. a main board; 40. a battery; 50. and (7) a rear cover.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus their detailed description will be omitted.

Although relative terms, such as "upper" and "lower," may be used in this specification to describe one element of an icon relative to another, these terms are used in this specification for convenience only, e.g., in accordance with the orientation of the examples described in the figures. It will be appreciated that if the device of the icon were turned upside down, the element described as "upper" would become the element "lower". When a structure is "on" another structure, it may mean that the structure is integrally formed with the other structure, or that the structure is "directly" disposed on the other structure, or that the structure is "indirectly" disposed on the other structure via another structure.

The terms "a," "an," "the," "said," and "at least one" are used to indicate the presence of one or more elements/components/parts/etc.; the terms "comprising" and "having" are intended to be inclusive and mean that there may be additional elements/components/etc. other than the listed elements/components/etc.; the terms "first," "second," and "third," etc. are used merely as labels, and are not limiting on the number of their objects.

First, as shown in fig. 1, the lens module 100 includes a transparent cover plate 110, a first lens 120, and a second lens 140, wherein the first lens 120 is disposed on one side of the transparent cover plate 110, and external light can enter the first lens 120 through the transparent cover plate 110; the second lens 140 is disposed on a side of the first lens 120 away from the transparent cover 110, the second lens 140 is configured to receive light transmitted by the first lens 120 and form an image on an image plane of the second lens 140, an optical magnification RED (optical magnification) of the lens module is greater than or equal to 1, and a conjugate distance of the lens module is smaller than or equal to a preset distance threshold.

According to the lens module provided by the embodiment of the disclosure, light reflected by an object to be photographed enters the first lens 120 through the transparent cover plate, then enters the second lens 140, and finally forms an image on an image surface, and the optical magnification RED of the lens module is greater than or equal to 1, so that macro photography can be realized; and the lens module can set up inside electronic equipment, has solved the camera lens of external camera lens and electronic equipment counterpoint difficulty when taking a picture in the macro in the correlation technique, operation complicated problem when leading to shooing.

Further, the lens module 100 provided in the embodiment of the present disclosure may further include a moving component 150, a light guide component 160, and a light emitting element (not shown in the drawings), wherein the moving component 150 is connected to the first lens 120, and the moving component 150 is used for adjusting a distance between the first lens 120 and the transparent cover plate 110. The light guide assembly 160 is disposed on a side of the transparent cover plate 110 close to the first lens 120, and the light emitting portion of the light emitting element is opposite to the light guide assembly 160. The light emitting element provides a light source for the light guide assembly, and the light guide assembly 160 is used for converting light emitted by the light emitting element into uniform light so as to supplement light for an object to be shot when the macro photography is performed, thereby improving the quality of photos shot at the macro. .

The distance between the first lens 120 and the transparent cover plate 110 can be adjusted by the moving assembly 150, and the imaging range and focusing can be ensured by the moving assembly 150. The light emitting elements provide light to the light guide assembly 160, so that the light source can be provided to the object to be photographed, and 0cm imaging can be realized.

The following will describe each part of the lens module 100 provided in the embodiment of the present disclosure in detail:

the transparent cover plate 110 may be a glass cover plate or a transparent plastic cover plate, and the transparent cover plate 110 is used to allow external light to enter the first lens 120, and the transparent cover plate 110 may protect the first lens 120. In practical applications, the transparent cover 110 may be disposed on a housing of the electronic device, a through hole may be disposed on the housing of the electronic device, and the transparent cover 110 may be disposed on the through hole. The transparent cover 110 may be flush with the housing of the electronic device or the transparent cover 110 may protrude from the surface of the housing of the electronic device.

The Object distance OBJ (imaging Object distance) of the lens module 100 is greater than or equal to 0.9mm, that is, the distance between the transparent cover plate 110 and the first lens 120 is greater than 0.9 mm. The conjugate distance of the lens module is less than or equal to 7 mm, that is, the preset distance threshold is 7 mm. The conjugate distance of the lens module is the distance between a surface of the transparent cover plate 110 far away from the first lens 120 and the image plane of the second lens 140. And the lens module satisfies the following conditions:

the difference between the Field of view FOV of the second lens 140 and the Field of view FOV of the first lens 120 is 10 ° or less and 0 ° or more

An object-side Numerical Aperture (NAO) of the first lens 120 is not less than 0.2; the object numerical aperture NAO of the second lens 140 is more than or equal to 0.2; the F-number F of the first lens 120 is less than or equal to 2.5; the F-number F of the second lens 140 is less than or equal to 2.5.

For example, the Effective focal length EFL (Effective focal length) of the first lens 120 is 2.23 mm, the object-side numerical aperture NAO of the first lens 120 is 0.20, the F-number F of the first lens 120 is 2.5, and the field angle FOV of the first lens 120 is 56 degrees; the effective focal length EFL of the second lens 140 is 3.21 mm, the object-side numerical aperture NAO of the second lens 140 is 0.20, the F-number F of the second lens 140 is 2.5, and the field angle FOV of the second lens 140 is 58 degrees.

In the lens module 100 provided in the embodiment of the present disclosure, the field angle FOV of the second lens 140 is greater than or equal to the field angle FOV of the first lens 120, and the difference between the field angle FOV of the second lens 140 and the field angle FOV of the first lens 120 is less than or equal to the preset threshold, so that the first lens 120 and the second lens 140 can be matched. The numerical apertures NAO of the first lens 120 and the second lens 140 are not less than 0.20, the F numbers F of the first lens 120 and the second lens 140 are not more than 2.5, the object distance OBJ of the lens module 100 is not less than 0.9mm, the optical magnification RED of the lens module 100 is not less than 1.0, and the difference between the field angle FOV of the second lens 140 and the field angle FOV of the first lens 120 is not more than 10 degrees, so that the problems of large near-focus object distance, low optical magnification, serious loss of modulation transfer function MTF at the near-focus edge, low resolution and overlarge volume in macro-range imaging are solved. On the premise of ensuring the optical performance, the high-precision imaging of the 0cm ultramicro distance of the electronic equipment is realized, the lens module 100 has the advantages of high resolution, high magnification, clear imaging at the 0cm near-focus position, no damage to the edge field of view and the like, and the formed image can be used for observing a fine structure or inspecting and judging medical properties.

The first lens 120 includes a plurality of lenses, which are sequentially arranged between the transparent cover plate 110 and the second lens 140. The second lens 140 includes a plurality of lenses, and the plurality of lenses are sequentially arranged on a side of the first lens 120 away from the transparent cover plate 110.

The plurality of lenses in the first lens 120 may be plastic lenses or glass lenses, or the plurality of lens portions in the first lens 120 are plastic lens portions and glass lenses. The plurality of lenses in the second lens 140 may be plastic lenses or glass lenses, or the plurality of lens portions in the second lens 140 are plastic lens portions and glass lenses. The number of lenses in the first lens 120 and the number of wafers in the second lens 140 may be the same or different. The lenses of the first lens 120 and the second lens 140 may be aspheric lenses or spherical lenses.

For example, the combination of the lenses in the first Lens 120 and the second Lens 140 may be any one of 3P (Plastic Lens) +3P, 2P +3P, 3P +4P, 2P +4P, 3G (Glass Lens) +3G, 2G +4G, 1G2P +3P, or 2G2P +1G 3P. Wherein P represents a plastic lens, and G represents a glass lens. Of course, in practical applications, the combination manner of the lenses in the first lens 120 and the second lens 140 may be other manners, and the embodiment of the disclosure is not limited thereto.

The first lens 120 will be described in detail below by taking the example that the first lens 120 includes three lenses:

as shown in fig. 2, the first lens 120 may include: a first lens 121, a second lens 122 and a third lens 123, the first lens 121 having a convex surface facing the transparent cover plate 110; the second lens 122 is disposed on a side of the first lens 121 away from the transparent cover plate 110, and both surfaces of the second lens 122 are aspheric; the third lens 123 is disposed on a side of the second lens 122 away from the first lens 121, and both surfaces of the third lens 123 are aspheric. A side of the second lens 122 close to the first lens 121 has a concave surface at an optical axis, a side of the second lens 122 close to the third lens 123 has a convex surface at the optical axis, a side of the third lens 123 close to the second lens 122 has a concave surface at the optical axis, and a side of the third lens 123 far from the second lens 121 has a concave surface at the optical axis.

The first lens 121 is convex toward the transparent cover plate 110 at the optical axis and has positive optical power. The second lens 122 has a concave surface facing the first lens 121 side near the optical axis and has negative power, and a convex surface facing the third lens 123 near the optical axis of the second lens 122. The side of the third lens 123 closer to the second lens 122 has a concave surface facing the image side near the optical axis and has negative refractive power, and the surface of the third lens 123 closer to the second lens 122 is formed as an aspherical surface having a pole at a position other than the optical axis.

The first lens 121 has positive power and is formed in a shape in which a convex surface faces the object side in the vicinity of the optical axis. Therefore, chromatic aberration, curvature of field, and distortion can be corrected well.

The second lens 122 has positive power and is shaped such that a concave surface faces the first lens 121 side and a convex surface faces the image side in the vicinity of the optical axis. Therefore, the incident angle of the light to the second lens 122 becomes an appropriate value, and chromatic aberration, curvature of field, and distortion can be corrected well.

The third lens 123 has negative refractive power, and is shaped such that a convex surface faces the second lens 122 side and a concave surface faces the second lens 140 side in the vicinity of the optical axis. Therefore, chromatic aberration, astigmatism, curvature of field, and distortion can be corrected well. The object-side surface and the image-side surface of the third lens 123 are formed as aspherical surfaces having poles at positions other than the optical axis. Therefore, curvature of field and distortion can be better corrected, and the incident angle of light rays entering the lens module 100 can be appropriately controlled.

In the present embodiment, when the length of the aspherical surface adopted in the aspherical surface of the lens surface in the optical axis direction is Z, the height in the direction orthogonal to the optical axis is H, the paraxial radius of curvature is R, the conic coefficient is k, and the aspherical surface coefficients are a4, a6, A8, a10, a12, a14, a16, a18, and a20, the length in the optical axis direction can be calculated by the following formula:

on this basis, the data of the first lens 120 is as follows:

the effective focal length EFL of the first lens 120 is 2.23 mm;

the F-number F of the first lens 120 is 2.5;

the object numerical aperture NAO of the first lens 120 is 0.20 mm;

the field angle FOV of the first lens 120 is 56 degrees.

The surface data of the first lens 120 is shown in table 1:

TABLE 1

In table 1, r is a paraxial radius of curvature, d represents a distance (surface interval) between lens surfaces on an optical axis, Nd represents a refractive index of a d-line (reference wavelength), and ν d represents an abbe number with respect to the d-line. In the reference numeral i, 1 denotes a face of the first lens 121 close to the

transparent cover

110, 2 denotes a face of the first lens 121 far from the transparent cover 110, 3 denotes a face of the second lens 122 close to the first lens 121, 4 denotes a face of the second lens 122 far from the first lens 121, 5 denotes a face of the third lens 123 close to the second lens 122, and 6 denotes a face of the third lens 123 far from the second lens 122.

The constituent lens data of the first lens 120 is shown in table 2:

TABLE 2

Aspheric data of the first lens 120 is shown in table 3:

TABLE 3

Table 3 (continuation)

When the parameters in the first lens 120 are as shown in the above table, the on-axis chromatic aberration of the first lens 120 is as shown in fig. 4a, the abscissa of the first lens 120 is chromatic aberration in fig. 4a, the field curvature diagram of the first lens 120 is as shown in fig. 4b, the abscissa of the first lens 120 is field curvature in fig. 4b, the distortion diagram of the first lens 120 is as shown in fig. 4c, and the abscissa of the first lens 120 is distortion. As shown in fig. 4a, 4b, and 4c, chromatic aberration, curvature of field, and distortion of the first lens 120 are well corrected.

As shown in fig. 3, the second lens 140 includes: a fourth lens 141, a fifth lens 142, and a sixth lens 143; the fourth lens 141 has a convex surface facing the first lens 120; the fifth lens 142 is disposed on a side of the fourth lens 141 away from the first lens 120, and both surfaces of the fifth lens 142 are aspheric; the sixth lens 143 is disposed on a side of the fifth lens 142 away from the fourth lens 141, and both surfaces of the sixth lens 143 are aspheric. A side of the fifth lens 142 close to the fourth lens 141 has a concave surface at an optical axis, a side of the fifth lens 142 close to the sixth lens 143 has a convex surface at the optical axis, a side of the sixth lens 143 close to the fifth lens 142 has a concave surface at the optical axis, and a side of the sixth lens 143 away from the fifth lens 142 has a concave surface at the optical axis.

The fourth lens 141 is convex toward the first lens 120 at an optical axis and has positive power. The fifth lens 142 has a concave surface facing the fourth lens 141 side near the optical axis and has negative refractive power, and the fifth lens 122 has a convex surface facing the sixth lens 143 near the optical axis. The side of the sixth lens 143 closer to the fifth lens 142 has a concave surface facing the image side near the optical axis and has negative refractive power, and the surface of the sixth lens 143 closer to the fifth lens 142 is formed as an aspherical surface having a pole at a position other than the optical axis.

The fourth lens 141 has positive power and is formed in a shape in which a convex surface faces the object side in the vicinity of the optical axis. Therefore, chromatic aberration, curvature of field, and distortion can be corrected well.

The fifth lens 142 has positive power and is shaped such that a concave surface faces the fourth lens 141 side and a convex surface faces the image side in the vicinity of the optical axis. Therefore, the incident angle of the light rays to the fifth lens 142 becomes an appropriate value, and chromatic aberration, curvature of field, and distortion can be corrected well.

The sixth lens 143 has negative refractive power, and is shaped such that its convex surface faces the fifth lens 142 side near the optical axis, and the object-side surface and the image-side surface of the sixth lens 143 are formed as aspherical surfaces having poles at positions other than the optical axis. Therefore, curvature of field and distortion can be better corrected, and the incident angle of light rays entering the lens module 100 can be appropriately controlled.

On the basis, the data of the two shots are as follows:

the effective focal length EFL of the second lens 140 is 3.21 mm;

the F-number F of the second lens 140 is 2.5;

the object-side numerical aperture NAO of the second lens 140 is 0.20 mm;

the field angle FOV of the second lens 140 is 58 degrees.

The surface data of the second lens 140 is shown in table 4:

TABLE 4

In table 4, r is a paraxial radius of curvature, d represents a distance (surface interval) between lens surfaces on the optical axis, Nd represents a refractive index of a d-line (reference wavelength), and ν d represents an abbe number with respect to the d-line. Reference numeral i denotes a face of the fourth lens 141 close to the

first lens

120, 2 denotes a face of the fourth lens 141 distant from the first lens 120, 3 denotes a face of the fifth lens 142 close to the fifth lens 141, 4 denotes a face of the fifth lens 142 distant from the fifth lens 141, 5 denotes a face of the sixth lens 143 close to the sixth lens 142, and 6 denotes a face of the sixth lens 143 distant from the sixth lens 142.

The constituent lens data of the second lens 140 are shown in table 5:

TABLE 5

Aspheric data of the second lens 140 is shown in table 6:

TABLE 6

Table 6 (continue)

When the parameters in the second lens 140 are as shown in the above table, the axial chromatic aberration of the second lens 140 is as shown in fig. 5a, the abscissa is chromatic aberration in fig. 5a, the field curvature diagram of the second lens 140 is as shown in fig. 5b, the abscissa is field curvature in fig. 5b, the distortion diagram of the second lens 140 is as shown in fig. 5c, and the abscissa is distortion in fig. 5 c. As shown in fig. 5a, 5b and 5c, chromatic aberration, curvature of field and distortion of the second lens 140 are well corrected.

Further, the first lens 120 may further include a first package housing, and the first lens 121, the second lens 122, and the third lens 123 are packaged in the first package housing. The second lens 140 may further include a second package case in which the fourth lens 141, the fifth lens 142, and the sixth lens 143 are packaged.

The moving assembly 150 may include a motor and a slide rail, etc., and an output shaft of the motor may be connected to the first lens 120, for example, the output shaft of the motor may be connected to the first package housing. The slide rail is arranged along the direction from the first lens 120 to the transparent cover plate 110, and the motor drives the first lens 120 to move along the slide rail.

The light guide assembly 160 is disposed on a side of the transparent cover plate 110 close to the first lens 120. The light guide assembly 160 may include a light guide film surrounding an area between the transparent cover plate 110 and the first lens 120. The exemplary first lens 120 and the transparent cover plate 110 may be circular, and in this case, the light guide film may be a hollow cylindrical structure, one end of the hollow cylindrical structure is connected to the transparent cover plate 110, and the other end of the hollow cylindrical structure is connected to the first lens 120 to form a closed cavity. The outer side of the light guide film can be provided with a total reflection film, the total reflection film is used for preventing light leakage, a light hole can be formed in the total reflection film, and the light hole is opposite to a light source in the electronic equipment, so that light emitted by the light source can enter the light guide assembly 160.

As shown in fig. 1, the height of the object AB on the object plane is y, the object AB is imaged on the image plane through the first lens 120 and the second lens 140 as a 'B', the height of the a 'B' is y ', y'/y is greater than 1, that is, the optical magnification of the lens module 100 is greater than or equal to 1. Note that the broken line in fig. 1 indicates the optical path, and the arrow indicates the light propagation direction.

In the lens module 100 provided by the present disclosure, light reflected by an object to be photographed enters the first lens 120 through the transparent cover plate, then enters the second lens 140, and finally forms an image on an image surface, the optical magnification of the lens module is greater than or equal to 1, macro photography can be realized, the conjugate distance of the lens module is less than or equal to a preset distance threshold, and the resolution and the magnification of the lens module can be improved; and the lens module can set up inside electronic equipment, has solved the camera lens of external camera lens and electronic equipment counterpoint difficulty when taking a picture in the macro in the correlation technique, operation complicated problem when leading to shooing.

An exemplary embodiment of the present disclosure further provides an electronic device, which includes the lens module 100 described above.

Further, the electronic device further includes: and the rear cover 50 is provided with an installation part, and the transparent cover plate is arranged on the installation part.

The rear cover can be a metal rear cover, a glass rear cover or a plastic rear cover, and the light-emitting element can be an LED light-emitting element or the light-emitting element can be shared with a flash lamp of the electronic device.

The electronic device provided by the embodiment of the disclosure can be an electronic device with a camera, such as a mobile phone, a tablet computer, a camera, an electronic reader or a notebook computer. The electronic device will be described in detail below by taking the electronic device as a mobile phone as an example.

As shown in fig. 6, the electronic device provided in the embodiment of the present disclosure may further include a display screen 10, a bezel 20, a main board 30, a battery 40, and a rear cover 50. The display screen 10 is mounted on the frame 20 to form a display surface of the electronic device, and the display screen 10 serves as a front shell of the electronic device. The rear cover 50 is adhered to the frame by double-sided adhesive, and the display screen 10, the frame 20 and the rear cover 50 form an accommodating space for accommodating other electronic components or functional modules of the electronic device. Meanwhile, the display screen 10 forms a display surface of the electronic device for displaying information such as images, texts, and the like. The Display screen 10 may be a Liquid Crystal Display (LCD) or an organic light-Emitting Diode (OLED) Display screen.

A glass cover may be provided over the display screen 10. Wherein, the glass cover plate can cover the display screen 10 to protect the display screen 10 and prevent the display screen 10 from being scratched or damaged by water.

The display screen 10 may include a display area 11 and a non-display area 12. The display area 11 performs a display function of the display screen 10 for displaying information such as images and texts. The non-display area 12 does not display information. The non-display area 12 may be used to set functional modules such as a camera, a receiver, a proximity sensor, and the like. In some embodiments, the non-display area 12 may include at least one area located at upper and lower portions of the display area 11.

The display screen 10 may be a full-face screen. At this time, the display screen 10 may display information in a full screen, so that the electronic apparatus has a large screen occupation ratio. The display screen 10 comprises only the display area 11 and no non-display area. At this moment, functional modules such as camera, proximity sensor among the electronic equipment can hide in display screen 10 below, and electronic equipment's fingerprint identification module can set up the back at electronic equipment.

The bezel 20 may be a hollow frame structure. The material of the frame 20 may include metal or plastic. The main board 30 is mounted inside the receiving space. For example, the main board 30 may be mounted on the frame 20 and accommodated in the accommodating space together with the frame 20. The main board 30 is provided with a grounding point to realize grounding of the main board 30. One or more of the functional modules such as a motor, a microphone, a speaker, a receiver, an earphone interface, a universal serial bus interface (USB interface), a camera, a proximity sensor, an ambient light sensor, a gyroscope, and a processor may be integrated on the main board 30. Meanwhile, the display screen 10 may be electrically connected to the main board 30.

The main board 30 is provided with a display control circuit. The display control circuit outputs an electric signal to the display screen 10 to control the display screen 10 to display information.

The battery 40 is mounted inside the receiving space. For example, the battery 40 may be mounted on the frame 20 and be accommodated in the accommodating space together with the frame 20. The battery 40 may be electrically connected to the motherboard 30 to enable the battery 40 to power the electronic device. The main board 30 may be provided with a power management circuit. The power management circuit is used to distribute the voltage provided by the battery 40 to the various electronic components in the electronic device.

The rear cover 50 serves to form an outer contour of the electronic apparatus. The rear cover 50 may be integrally formed. In the forming process of the rear cover 50, a rear camera hole, a fingerprint identification module mounting hole and the like can be formed in the rear cover 50.

The lens module 100 provided by the embodiment of the present disclosure may be a lens of a front camera of an electronic device or a rear camera of the electronic device, and since the lens provided by the embodiment of the present disclosure is a macro lens, the lens module 100 provided by the embodiment of the present disclosure is generally suitable for a rear camera.

The lens module 100 can be connected to the rear cover 50, the main board 30 or the bezel 20. The transparent cover plate 110 may be disposed on the rear cover 50, the moving element 150 may be disposed on the rear cover 50, the frame 20 or the main board 30, the first lens 120 is connected to the moving element 150, and the second lens 140 may be connected to the frame 20 or the main board 30.

The electronic equipment provided by the embodiment of the disclosure comprises the lens module 100 and the lens module provided by the embodiment of the disclosure, light reflected by an object to be shot enters the first lens 120 through the transparent cover plate, then enters the second lens 140, and finally forms an image on an image surface, the optical magnification of the lens module is more than or equal to 1, macro-shooting can be realized, and the lens module can be arranged inside the electronic equipment, so that the problem that the operation is complex due to the difficulty in aligning the external lens and the lens of the electronic equipment during macro-shooting in the related technology is solved.

Further, the field angle FOV of the second lens 140 is equal to or greater than the field angle FOV of the first lens 120, and the difference between the field angle FOV of the second lens 140 and the field angle FOV of the first lens 120 is equal to or less than the preset threshold, which enables matching of the first lens 120 and the second lens 140. The numerical apertures NAO of the first lens 120 and the second lens 140 are not less than 0.20, the F-numbers F of the first lens 120 and the second lens 140 are not more than 2.5, the object distance OBJ of the lens module 100 is not less than 0.9mm, the optical magnification RED of the lens module 100 is not less than 1.0, and the difference between the field angle FOV of the second lens 140 and the field angle FOV of the first lens 120 is not more than 10 degrees, so that the problems of large object distance of a near focus, low optical magnification, serious loss of modulation transfer function MTF of the edge of the near focus, low resolution and overlarge volume in macro imaging are solved. On the premise of ensuring the optical performance, the high-precision imaging of the 0cm ultramicro distance of the electronic equipment is realized, the lens module 100 has the advantages of high resolution, high magnification, clear imaging at the 0cm near-focus position, no damage to the edge field of view and the like, and the formed image can be used for observing a fine structure or inspecting and judging medical properties.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

Claims

1. The lens module, characterized in that, the lens module includes:

a transparent cover plate;

2. The lens module as claimed in claim 1, wherein the lens module further comprises:

and the moving assembly is connected with the first lens and is used for adjusting the distance between the first lens and the transparent cover plate.

3. The lens module as claimed in claim 1, wherein the lens module further comprises:

and the light guide assembly is arranged on one side, close to the first lens, of the transparent cover plate.

4. The lens module as claimed in claim 3, wherein the lens module further comprises:

and the light emitting part of the light emitting element is opposite to the light guide component.

5. The lens module as claimed in claim 1, wherein a conjugate distance of the lens module is less than or equal to 7 mm, the conjugate distance of the lens module being a distance between a surface of the transparent cover plate away from the first lens and an image plane of the second lens.

6. The lens module as claimed in claim 1, wherein the lens module satisfies the following conditions:

the difference between the angle of view FOV of the second lens and the angle of view FOV of the first lens is equal to or less than 10 ° and equal to or greater than 0 °.

7. The lens module as claimed in claim 1, wherein the lens module satisfies the following conditions:

the object space numerical aperture NAO of the first lens is more than or equal to 0.2;

the object space numerical aperture NAO of the second lens is more than or equal to 0.2;

the F-number F of the first lens is less than or equal to 2.5;

and the F-number F of the second lens is less than or equal to 2.5.

8. The lens module as recited in claim 1, wherein the first lens comprises a plurality of lenses, the plurality of lenses being sequentially arranged between the transparent cover plate and the second lens.

9. The lens module as recited in claim 8, wherein the first lens comprises:

a first lens having a convex surface facing the transparent cover plate;

the second lens is arranged on one side, away from the transparent cover plate, of the first lens, the double surfaces of the second lens are aspheric surfaces, one side, close to the first lens, of the second lens is provided with a concave surface, and one side, away from the first lens, of the second lens is provided with a convex surface;

the third lens is arranged on one side, far away from the first lens, of the second lens, the double surfaces of the third lens are aspheric surfaces, a concave surface is arranged on one side, close to the second lens, of the third lens at the optical axis, and a concave surface is arranged on one side, far away from the second lens, of the third lens at the optical axis.

10. The lens module as claimed in claim 1, wherein the second lens includes a plurality of lenses, and the plurality of lenses are sequentially arranged on a side of the first lens away from the transparent cover plate.

11. The lens module as claimed in claim 10, wherein the second lens comprises:

a fourth lens having a convex surface facing the first lens;

the fifth lens is arranged on one side, away from the first lens, of the fourth lens, the double surfaces of the fifth lens are aspheric, one side, close to the fourth lens, of the fifth lens is provided with a concave surface, and one side, away from the fourth lens, of the fifth lens is provided with a convex surface;

the sixth lens is arranged on one side, far away from the fourth lens, of the fifth lens, the double surfaces of the sixth lens are aspheric, one side, close to the fifth lens, of the sixth lens is provided with a concave surface at the position of an optical axis, and one side, far away from the fifth lens, of the sixth lens is provided with a concave surface at the position of the optical axis.

12. An electronic device, comprising the lens module according to any one of claims 1 to 11.

13. The electronic device of claim 12, wherein the electronic device further comprises:

the back lid, be provided with the installation department on the back lid, transparent cover plate locates the installation department.