CN215416053U

CN215416053U - Lens, camera module and electronic equipment

Info

Publication number: CN215416053U
Application number: CN202121447222.XU
Authority: CN
Inventors: 张刚强
Original assignee: Jiangxi Jingchao Optical Co Ltd
Current assignee: Jiangxi Jingchao Optical Co Ltd
Priority date: 2021-06-28
Filing date: 2021-06-28
Publication date: 2022-01-04
Anticipated expiration: 2031-06-28

Abstract

The utility model discloses a lens, a camera module and an electronic device. The lens barrel comprises a main barrel body and a head barrel body, wherein the main barrel body is provided with a first accommodating space, the main barrel body comprises a first end and a second end along the direction of an optical axis, the second end is the image side end of the main barrel body, the radial size of the second end is larger than that of the first end along the direction perpendicular to the optical axis, a first lens and the head barrel body are integrally formed, the first lens comprises an optical part and a non-optical part, the non-optical part surrounds and is connected to the periphery of the optical part, the head barrel body and/or the non-optical part are connected to the first end, a second lens is arranged in the first accommodating space and is positioned at the image side end of the first lens, and the first lens and the head barrel body of the lens barrel are integrally formed, so that no assembly gap exists between the first lens and the head barrel body, and the radial size of the head of the lens can be reduced.

Description

Lens, camera module and electronic equipment

Technical Field

The utility model relates to the technical field of optical imaging, in particular to a lens, a camera module and electronic equipment.

Background

In the related art, electronic devices (such as mobile phones, electronic watches, tablet computers, etc.) with a camera function often have a situation that the size of other accessories needs to be reduced or the miniaturization design of the electronic device itself is difficult to realize due to the large size of the lens. For example, when the lens is used as a front camera of an electronic device, in order to avoid interference between the display screen and the head of the lens (i.e., the object side end of the lens), the radial dimension of the head of the lens is set to be large, which results in a small screen area of the electronic device.

The radial dimension of the head of the lens currently on the market is mainly determined by the radial dimension of the first lens and the wall thickness of the lens barrel disposed around the periphery of the first lens. If the radial dimension of the first lens is reduced, the amount of light entering the lens is too small, resulting in a too dark image and low resolution, and if the wall thickness of the lens barrel is reduced, the difficulty in manufacturing is high, and it is difficult to achieve the function of protecting the first lens.

Therefore, how to reduce the radial size of the head of the lens is a problem to be solved urgently in the industry.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model discloses a lens, a camera module and electronic equipment.

In order to achieve the above object, in a first aspect, the present invention discloses a lens barrel comprising:

the lens cone comprises a main cylinder body and a head cylinder body, wherein the main cylinder body is provided with a first accommodating space, the main cylinder body comprises a first end and a second end along the optical axis direction, the second end is an image side end, and the radial size of the second end is larger than that of the first end along the direction perpendicular to the optical axis;

the first lens comprises an optical part and a non-optical part annularly arranged on the periphery of the optical part, and the head cylinder and/or the non-optical part are connected to the first end; and the number of the first and second groups,

the second lens is arranged in the first accommodating space and is positioned on the image side of the first lens. Through dividing into the main cylinder and the head cylinder that the components of a whole that can function independently set up with the lens cone to make head cylinder and first lens integrated into one piece, and head cylinder and/or first lens are connected with the main cylinder simultaneously, like this, can make and do not have the fit-up gap between first lens and the head cylinder, thereby when guaranteeing that the thickness of head cylinder and the radial dimension of first lens satisfy the user demand, can reduce the radial dimension of the head of camera lens, so that further miniaturized design can be realized to the camera lens.

As an optional implementation manner, in the embodiment of the first aspect of the present application, the head cylinder and the first lens are made of different materials, the thickness b1 of the cylinder wall of the head cylinder is greater than or equal to 0.12mm, so that the head cylinder can realize the function of protecting the first lens, and the head cylinder is easy to form, and the thickness b2 of the non-optical portion is greater than or equal to 0.2mm, so that the first lens is easy to form.

As an optional implementation manner, in an embodiment of the first aspect of the present application, the head cylinder and the first lens are made of the same material, so as to simplify an integral molding process of the first lens and the head cylinder, and reduce manufacturing costs of the first lens and the head cylinder, and the light shielding layer is disposed on the head cylinder, so that the head cylinder can achieve a function of blocking stray light from entering the first lens.

As an alternative implementation manner, in an embodiment of the first aspect of the present application, the head cylinder is integrally formed on an outer periphery of the first lens in a direction perpendicular to the optical axis, so that stray light can be prevented from entering the first lens from the outer periphery of the first lens in the direction perpendicular to the optical axis.

As an optional implementation manner, in an embodiment of the first aspect of the present application, in an optical axis direction, in the optical axis direction, the head cylinder protrudes beyond the object-side surface of the first lens, and a height h of the head cylinder protruding beyond the object-side surface of the first lens satisfies: h is more than or equal to 0.02mm, so that the end face of the object side end of the first lens can be protected through the head cylinder to avoid the first lens from being collided.

As an optional implementation manner, in an embodiment of the first aspect of the present application, the main cylinder and the head cylinder are made of different materials, so that two materials with different properties, at least one of the properties being light transmittance, hardness, toughness or melting point, can be used to manufacture the main cylinder and the head cylinder respectively, so as to meet more various use requirements of the lens.

As an alternative implementation manner, in an embodiment of the first aspect of the present application, the main cylinder has a first step surface facing the first accommodating space, the first step surface is disposed opposite to an end surface of the first end, the optical portion includes an image side portion and an object side portion, the image side portion is located in the first accommodating space, the object side portion protrudes from the first accommodating space, the non-optical portion is disposed on an outer periphery of the image side portion, and the non-optical portion abuts against the first step surface;

the first end is provided with a first surface connected with the first step surface, the head cylinder is integrally formed at the periphery of the object side part and provided with a second surface facing the first surface, the second surface is attached to the first surface or has a distance with the first surface, and the head cylinder is integrally formed at the periphery of the object side part, so that the object side part can be protected by the head cylinder, and meanwhile, light entering from the object side part can be shielded by the head cylinder, and the object side part is prevented from generating veiling glare.

As an optional implementation manner, in an embodiment of the first aspect of the present application, a light shielding ring is disposed between the first lens and the second lens, and when the second surface has a distance from the first surface, the light shielding ring is disposed corresponding to the distance, so that stray light entering from the distance between the first surface and the second surface can be blocked from being emitted from the first lens to the second lens.

As an optional implementation manner, in an embodiment of the first aspect of the present application, the head cylinder is connected to the first end, the head cylinder has a second accommodating space, the first lens is located in the second accommodating space, the second accommodating space is communicated with the first accommodating space, and the first lens is connected to the first end through the head cylinder, so that a situation that the connection between the first lens and the main cylinder is broken due to a small connection area at the connection between the first lens and the main cylinder and a large pressure can be avoided, and the service life of the lens is effectively ensured.

As an optional implementation manner, in an embodiment of the first aspect of the present application, the lens further includes a third lens, the third lens is disposed in the second accommodating space, and the third lens is located between the first lens and the second lens, and by disposing the third lens, the lens can meet the design requirements of more various optical paths by adjusting the structure and the number of the third lens and the relative position of the third lens to the first lens or the second lens.

In a second aspect, the present application further discloses a camera module including a photosensitive chip and the lens as described above in the first aspect, the photosensitive chip is disposed on the image side of the lens, and the miniaturized lens of the camera module can be implemented by disposing the small lens with the radial size of the head provided by the first aspect.

In a third aspect, the present application further discloses that the electronic device includes the camera module as described in the second aspect, and by providing the camera module as provided in the second aspect, the area occupied by the head of the lens on the surface of the electronic device can be reduced, so that the surface structure of the electronic device can be made more compact.

Compared with the prior art, the utility model has the beneficial effects that:

according to the lens, the camera module and the electronic device provided by the embodiment of the utility model, the first lens and the head cylinder of the lens barrel are integrally formed, so that no assembly gap exists between the first lens and the head cylinder, the thickness of the head cylinder and the radial length of the first lens can be ensured to meet the use requirement, and the radial size of the head of the lens barrel can be reduced.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a lens disclosed in an embodiment of the present application;

FIG. 2 is a cross-sectional view taken along A-A of FIG. 1;

FIG. 3 is a cross-sectional view of a first lens and head barrel disclosed in an embodiment of the present application;

FIG. 4 is another cross-sectional view taken along A-A of FIG. 1;

FIG. 5 is a schematic view of a molding process of a first lens and a head cylinder disclosed in an embodiment of the present application;

FIG. 6 is a further cross-sectional view taken along A-A of FIG. 1;

fig. 7 is a schematic structural diagram of an electronic device disclosed in an embodiment of the present application.

Icon: 1. a lens; 10. a lens barrel; 100. a main cylinder; 100a, a first accommodating space; 100b, a first end; 100c, a second end; 100d, a first step surface; 100e, a first surface; 101. a head cylinder; 101a, a light-shielding layer; 101b, a second surface; 101c, a second accommodating space; 10a, a first side; 10b, a second side; 11. a first lens; 110. an optical portion; 110a, an image side portion; 110b, an object side portion; 111. A non-optic portion; 112. a shading ring; 12. a second lens; 13. a third lens; 20. a lower die; 21. a first upper die; 22. a second upper die; 2a, a first gate; 2b, a first cavity; 2c, a second gate; 2d, a second cavity; 3. a camera module; 30. a photosensitive chip; 4. an electronic device.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the present invention, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "center", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are used primarily to better describe the utility model and its embodiments and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meanings of these terms in the present invention can be understood by those skilled in the art as appropriate.

Furthermore, the terms "mounted," "disposed," "provided," "connected," and "connected" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meanings of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.

Furthermore, the terms "first," "second," and the like, are used primarily to distinguish one device, element, or component from another (the specific nature and configuration may be the same or different), and are not used to indicate or imply the relative importance or number of the indicated devices, elements, or components. "plurality" means two or more unless otherwise specified.

The technical solution of the present invention will be further described with reference to the following embodiments and the accompanying drawings.

Referring to fig. 1 to 3, a first aspect of the present application discloses a lens barrel 1, which includes a lens barrel 10, a first lens 11, and a second lens 12. Specifically, the lens barrel 10 includes a main barrel 100 and a head barrel 101, the main barrel 100 has a first accommodating space 100a, the main barrel 100 includes a first end 100b and a second end 100c along the direction of the optical axis L, the second end 100c is the image side end of the main barrel 100, the radial dimension of the second end 100c along the direction perpendicular to the optical axis L is larger than the radial dimension of the first end 100b, the head barrel 101 is integrally formed on the outer circumference of the first lens 11 along the direction perpendicular to the optical axis L, the first lens 11 includes an optical portion 110 and a non-optical portion 111 annularly disposed on the outer circumference of the optical portion 110, the head barrel 101 and/or the non-optical portion 111 is connected to the first end 100b, the second lens 12 is disposed in the first accommodating space 100a, and the second lens 12 is located on the image side end of the first lens 11, wherein a boundary condition between the optical portion 110 and the non-optical portion 111 is exemplarily shown by a dashed dotted line O in fig. 2 and fig. 3, the cases shown in fig. 2 and 3 do not limit the boundary between the optical portion 110 and the non-optical portion 111 in actual cases.

It is understood that since the head cylinder 101 is integrally molded with the first lens 11, the head cylinder 101 is provided separately from the main cylinder 100. In other words, in the present embodiment, the lens barrel 10 is divided into the main cylinder 100 and the head cylinder 101 which are separately arranged, and the head cylinder 101 and the first lens 11 are integrally formed, and at the same time, the head cylinder 101 and/or the first lens 11 are connected to the main cylinder 100, so that there is no assembly gap between the first lens 11 and the head cylinder 101, and the radial dimension of the head of the lens 1 can be reduced while the thickness of the head cylinder 101 and the radial dimension of the first lens 11 are ensured to meet the use requirement, so that the lens 1 can be further miniaturized.

Note that, the aforementioned "the head cylinder 101 is integrally formed on the outer periphery of the first lens 11 in the direction perpendicular to the optical axis L" means that the head cylinder 101 is integrally formed on at least a part of the outer periphery of the first lens 11 in the direction perpendicular to the optical axis L, in other words, the head cylinder 101 may be integrally formed on a part of the outer periphery of the first lens 11 in the direction perpendicular to the optical axis L, or the head cylinder 101 may be integrally formed on the entire outer periphery of the first lens 11 in the direction perpendicular to the optical axis L. Similarly, "the non-optical portion 111 looped around the outer periphery of the optical portion 110" means that the non-optical portion 111 is looped around at least a part of the outer periphery of the optical portion 110, that is, the non-optical portion 111 may be looped around a part of the outer periphery of the optical portion 110, or the non-optical portion 111 may be looped around the entire outer periphery of the optical portion 110.

For convenience of description, a direction from the first end 100b to the second end 100c along the optical axis L is defined as an image side direction, and a direction from the second end 100c to the first end 100b along the optical axis L is defined as an object side direction, so that the first end 100b of the main cylinder 100 is an object side end, the second end 100c of the main cylinder 100 is an image side end, and a direction perpendicular to the optical axis L is a radial direction X, as shown in fig. 2 and 3, coordinates in fig. 2 and 3 show the image side direction, the object side direction, and the radial direction X.

It should be noted that the head of the lens 1 refers to the object side of the lens 1, and when the size d1 of the object side of the lens 1 along the radial direction X and the size d2 of the image side of the lens 1 along the radial direction X satisfy: when d1/d2 is greater than or equal to 2.5, the object side of the lens 1 is the head of the lens 1. Therefore, in the embodiment of the present application, since the second end 100c of the main cylinder 100 forms the image side end of the lens 1, and the end of the head cylinder 101 facing away from the first end 100b (i.e., the object side end of the head cylinder 101) forms the object side end of the lens 1, based on which, in the direction perpendicular to the optical axis L, the radial dimension d1 of the second end 100c and the radial dimension d2 of the object side end of the head cylinder 101 satisfy: d1/d2 is 2.5 or more, for example, the ratio d1/d2 of the radial dimension d1 of the second end 100c to the radial dimension d2 of the object side end of the head cylinder 101 may be 2.5, 2.6, 2.7, 3.0, 3.3, 3.6, 3.9, 4.2, etc.

In some embodiments, main cylinder 100 may be a hollow cylindrical structure having one or more of a circular, conical, square, or other shape along radial direction X. For example, the object side of the main cylinder 100 is circular along the radial direction X, and the image side of the main cylinder 100 is square along the radial direction X, so that the shape of the object side of the main cylinder 100 is adapted to the shape of most lenses, so as to be convenient for carrying the circular lenses, and meanwhile, since the outer periphery of the object side of the main cylinder 100 has the first side surface 10a and the second side surface 10b which are perpendicular to each other, when the image side of the main cylinder 100 is connected to other structures (such as a motor, a camera module or an electronic device), the positioning and adjustment of the main cylinder 100 through the first side surface 10a and the second side surface 10b are convenient, so that the assembling precision of the whole lens 1 is easily improved.

Alternatively, the main cylinder 100 may be a stepped cylinder with a gradually increasing radial size in a direction from the first end 100b to the second end 100c along the optical axis L, so that the plurality of second lenses 12 can be sequentially placed in the first accommodating space 100a in an order from a smaller radial size to a larger radial size of the plurality of second lenses 12, and meanwhile, the plurality of second lenses 12 placed in the main cylinder 100 can be carried by the steps formed on the inner wall surface of the main cylinder 100.

Alternatively, in order to protect the second lens 12 placed in the first accommodating space 100a by the main cylinder 100, the main cylinder 100 may be made of plastic, resin, or the like with certain hardness. Further, in order to block stray light from entering the first accommodating space 100a, the main cylinder 100 may be made of black plastic or resin material with low light transmittance, or the surface of the main cylinder 100 may be sprayed with a light shielding material.

Optionally, the main cylinder 100 and the head cylinder 101 may be made of different materials, so that two materials with different properties, such as light transmittance, hardness, toughness, or melting point, can be used to manufacture the main cylinder 100 and the head cylinder 101, respectively, so as to meet the more diverse use requirements of the lens. It can be understood that, in other embodiments, the main cylinder 100 and the head cylinder 101 may be made of the same material, and since the same material has the same property, the process of measuring and calculating the performance of the main cylinder 100 and the head cylinder 101 in the design process of the lens 1 can be simplified, and the design difficulty of the lens 1 can be reduced.

Alternatively, the head cylinder 101 may be integrally formed on the outer periphery of the first lens 11 in the direction perpendicular to the optical axis L, so that stray light can be prevented from entering the first lens 11 from the outer periphery of the first lens 11 in the direction perpendicular to the optical axis L.

Further, in order to prevent the first lens 11 from being collided to protect the end surface of the object side end of the first lens 11, the head cylinder 101 protrudes from the object side surface of the first lens 11 in the direction from the image side toward the object side along the direction of the optical axis L, and the height h of the head cylinder 101 protruding from the object side surface of the first lens 11 can satisfy: h is 0.02mm or more, and for example, the height h may be 0.02mm, 0.03mm, 0.04 mm, 0.05mm, 0.1mm, 0.2mm or the like.

In some embodiments, in order to make the first lens 11 meet the requirement of use to realize the optical function, the first lens 11 may be a circular, rectangular or other shaped sheet-like object made of optical glass, plastic or silicone, wherein the plastic may be PC (Polycarbonate), PMMA (polymethyl methacrylate) or the like.

Alternatively, in order to enable the optical portion 110 of the first lens 11 to cover the optical path of the incident light for imaging, so as to complete the image formed by the lens 1, and to improve the imaging quality of the lens 1, the size of the first lens 11 in the radial direction X may gradually increase from the object side to the image side.

In some embodiments, considering that the first lens 11 is integrally formed with the head cylinder 101, the materials of the first lens 11 and the head cylinder 101 may be different or the same.

In an optional embodiment, the materials of the first lens 11 and the head cylinder 101 are different, so that the materials of the first lens 11 and the head cylinder 101 can be respectively selected according to different functions and use requirements of the first lens 11 and the head cylinder 101, so that the first lens 11 and the head cylinder 101 have good functionality.

Alternatively, the first lens 11 and the head cylinder 101 may be integrally formed by a two-shot molding method. Specifically, the head cylinder 101 may be injection-molded in a mold, and then the first lens 11 may be directly injection-molded on the head cylinder 101, so that the first lens 11 made of different materials may be integrally molded with the head cylinder 101. It can be understood that, when the first lens 11 and the head cylinder 101 are integrally formed by two-color injection molding, the first lens 11 and the head cylinder 101 may be made of plastic materials with different compositions, for example, the first lens 11 may be made of a transparent plastic material with high light transmittance, and the head cylinder 101 may be made of a black plastic material with good light shielding performance. So that the first lens 11 and the head cylinder 101 can be easily molded by injection molding.

Optionally, in order to enable the head cylinder 101 to achieve the function of protecting the first lens 11 and make the head cylinder 101 easy to mold, the cylinder wall of the head cylinder 101 should have a certain thickness, and the cylinder wall thickness b1 of the head cylinder 101 may satisfy b1 ≥ 0.12mm, for example, the cylinder wall thickness b1 of the head cylinder 101 may be 0.12mm, 0.13mm, 0.14mm, 0.15mm, 0.2mm, 0.25mm, 0.3mm, or 0.5mm, etc.

It is understood that, in order to save materials, the thickness b2 of the non-optical portion 111 of the first lens 11 is smaller than the thickness b3 of the optical portion 110 in the direction of the optical axis L. Optionally, in order to make the first lens 11 easy to mold, the non-optical portion 111 should have a certain thickness, and the thickness b2 of the non-optical portion 111 can satisfy b2 ≧ 0.2mm, for example: the thickness b2 of the non-optic portion 111 may be: 0.2mm, 0.25mm, 0.3mm, 0.5mm, 0.7mm, 1.0mm, 1.5mm, 2.5mm, or 5mm, etc.

As shown in fig. 4, in another alternative embodiment, the head cylinder 101 and the first lens 11 are made of the same material, so that the process of integrally molding the first lens 11 and the head cylinder 101 can be simplified, and the manufacturing cost of the first lens 11 and the head cylinder 101 can be reduced.

It is understood that, according to the usage requirement of the first lens 11, the light transmittance of the material of the first lens 11 should be high, and therefore, at this time, in order to enable the head cylinder 101 to achieve the function of blocking stray light from entering the first lens 11, the head cylinder 101 may be provided with a light shielding layer 101 a. Specifically, the light shielding layer 101a may be a light shielding material sprayed on the head cylinder 101, or a light shielding frosted layer formed by frosting the surface of the head cylinder 101.

Next, a process of integrally molding the first lens 11 and the head cylinder 101 will be described, taking as an example that the first lens 11 and the head cylinder 101 are integrally molded by two-color injection molding. For convenience of explanation, the up-down direction is defined as shown by arrows in fig. 5.

First, the head cylinder 101 is molded by using a mold. As shown in a and b in fig. 5, specifically, the mold includes a lower mold 20 and a first upper mold 21, a first gate 2a is provided on the first upper mold 21, the first gate 2a penetrates through the first upper mold 21 in the up-down direction, the first upper mold 21 is connected to the lower mold 20 in a matching manner, so that a first cavity 2b is formed between the first upper mold 21 and the lower mold 20, and the first gate 2a is communicated with the first cavity 2 b. Further, the material for forming the head cylinder 101 is conveyed into the first cavity 2b through the first gate 2a to fill the first cavity 2b, and after cooling and molding, the head cylinder 101 is formed.

Next, the first upper die 21 is removed, and the lower die 20 and the head cylinder 101 molded on the lower die 20 are obtained.

Finally, the first lens 11 is molded on the head cylinder 101 by using a mold. As shown in c and d in fig. 5, specifically, the mold further includes a second upper mold 22, the second upper mold 22 is connected to the lower mold 20 formed with the head cylinder 101 in a matching manner, so that the second upper mold 22 and the head cylinder 101, and the second upper mold 22 and the lower mold 20 enclose and form a second gate 2c and a second cavity 2d which are communicated, wherein the second gate 2c is located on one side of the second cavity 2d perpendicular to the up-down direction, so that the second gate 2c is away from the optical portion of the first lens 11, thereby avoiding a situation that the use function of the first lens 11 is affected due to the poor optical property of the portion of the first lens 11 formed at the second gate 2 c. Further, the material for forming the first lens 11 is transferred into the second cavity 2d through the second gate 2c to fill the second cavity 2d, and after cooling molding, the first lens 11 is directly formed on the head cylinder 101. In this way, the process of integrally molding the first lens 11 and the head cylinder 101 by two-shot molding is completed.

Next, the connection relationship between the main cylinder 100 and the non-optical portion 111 of the first lens 11 or the head cylinder 101, and the shape and structure of the first lens 11 and the head cylinder 101 will be described in detail with reference to the drawings.

As can be seen from the foregoing, the non-optical portion 111 and/or the head cylinder 101 of the first lens 11 may be connected to the first end 100b of the main cylinder 100, i.e., the first end 100b may be connected to the non-optical portion 111 or the head cylinder 101 of the first lens 11, or the first end 100b may be connected to both the non-optical portion 111 and the head cylinder 101 of the first lens 11. In this way, the components connected to the first end 100b of the main cylinder 101 can be selected as the case may be, so that the connection of the first lens 11 and/or the head cylinder 101 to the first end 100b is more controllable.

Referring again to fig. 2, in an alternative embodiment, the first end 100b is attached to the non-optic portion 111. Specifically, the main cylinder 100 has a first step surface 100d facing the first accommodation space 100a, the first step surface 100d is disposed opposite to the end surface of the first end 100b, the optical portion 110 includes a side-like portion 110a and an object-side portion 110b, the side-like portion 110a is located in the first accommodation space 100a, the object side part 110b extends from the first accommodating space 100a, the non-optical part 111 is arranged on the periphery of the image side part 110a, the non-optical portion 111 abuts against the first step surface 100d, the first end 100b has a first surface 100e connected to the first step surface 100d, the head cylinder 101 is integrally formed on the outer periphery of the object side portion 110b, and the head cylinder 101 has a second surface 101b, the second surface 101b faces the first surface 100e, and the second surface 101b is attached to the first surface 100e or spaced from the first surface 100e, in fig. 2, a line P, which is two short and one long, shows a boundary between the image side portion 110a and the object side portion 110 b. The head cylinder 101 is integrally formed on the periphery of the object side portion 110b, so that the head cylinder 101 can protect the object side portion 110b, and the head cylinder 101 can block light entering from the object side portion 110b to prevent the object side portion 110b from generating flare.

As an example, the second surface 101b and the first surface 100e have a distance therebetween, that is, only the non-optical portion 111 of the first lens 11 is connected to the first end 100b of the main cylinder 100, and the head cylinder 101 is not connected to the first end 100b of the main cylinder 100, so that the distance can be used as an adjustment space for the relative position between the first lens 11 and the main cylinder 100, thereby enabling the relative position between the first lens 11 and the main cylinder 100 to be adjusted, and further improving the imaging quality of the lens 1 by adjusting the relative position between the first lens 11 and the main cylinder 100 during the assembly process.

Further, a light-shielding ring 112 may be disposed between the first lens 11 and the second lens 12, and the light-shielding ring 112 corresponds to a distance between the first surface 100e and the second surface 101b, so as to block stray light incident from the distance between the first surface 100e and the second surface 101b from being emitted from the first lens 11 to the second lens 12. It is understood that the light-shielding ring 112 may be an annular sheet-like object made of a light-shielding material, and the light-shielding ring 112 may be connected to the non-optical portion 111 of the first lens 11, so as to prevent the light-shielding ring 112 from affecting the light propagating in the optical portion 110, which may affect the imaging quality of the lens 1.

Optionally, the light-shielding ring 112 may be sandwiched between the first lens 11 and the second lens 12, so that the relative positions of the light-shielding ring 112 and the first lens 11 and the second lens 12 can be fixed, and the light-shielding ring 112 is prevented from being displaced relative to the first lens 11 or the second lens 12 in the use process, which may affect the imaging quality of the lens 1.

As another example, the second surface 101b may be attached to the first surface 100e, so that not only the non-optical portion 111 but also the head cylinder 101 may be attached to the first end 100b, which may improve the assembly stability of the main cylinder 100 and the structure in which the head cylinder 101 and the first lens 11 are integrally formed.

It is understood that the head cylinder 101 may also be at least partially located at the periphery of the non-optical portion 111, so as to also protect at least part of the non-optical portion 111 of the first lens 11.

Referring to fig. 6, in another alternative embodiment, the head cylinder 101 is connected to the first end 100b, i.e., the first lens 11 is not connected to the main cylinder 100. Optionally, the head cylinder 101 may be connected to the main cylinder 100 by gluing, snapping, or magnetic attraction, so as to improve the connection reliability between the head cylinder 101 and the main cylinder 100 and prevent the head cylinder 101 from being separated from the main cylinder 100.

Further, the head cylinder 101 has a second accommodating space 101c, the first lens 11 is located in the second accommodating space 101c, and the second accommodating space 101c is communicated with the first accommodating space 100 a. The first lens 11 is connected to the first end 100b through the head cylinder 101, so that the situation that the connection part of the first lens 11 and the main cylinder 100 is broken due to the fact that the connection area of the connection part of the first lens 11 and the main cylinder 100 is small and the pressure intensity is large can be avoided, and the service life of the lens 1 is effectively ensured.

In this embodiment, the lens barrel 1 may further include a third lens 13, the third lens 13 is disposed in the second accommodating space 101c, and the third lens 13 is located between the first lens 11 and the second lens 12. By arranging the third lens 13, the lens 1 can meet the design requirements of more various light paths by adjusting the structure and the number of the third lens 13 and the relative position of the third lens 13 and the first lens 11 or the second lens 12.

It is understood that the shape and material of the third lens element 13 can refer to the shape and material of the first lens element 11, which are not described herein.

In some embodiments, to meet the requirement of various optical path designs, one or more third lenses 13 may be provided, and the third lens 13 may be a convex lens or a concave lens, in other words, when one third lens 13 is provided, the one third lens 13 may be a convex lens or a concave lens, when a plurality of third lenses 13 are provided, the plurality of third lenses 13 may be all convex lenses or concave lenses, or, in the plurality of third lenses 13, a part of the third lenses 13 are convex lenses, and the rest of the third lenses 13 are concave lenses. For example, when the number of the third lenses 13 is three, two of the third lenses 13 may be convex lenses, and the remaining one of the third lenses 13 may be a concave lens.

It is understood that, in order to effectively block stray light, a light blocking ring 112 may be disposed between the first lens 11 and the third lens 13, and, when the third lens 13 is plural, between two adjacent third lenses 13, and between the second lens 12 and the third lens 13.

The lens 1 disclosed in the embodiment of the present application, the lens barrel 10 is divided into the main barrel 100 and the head barrel 101 which are separately arranged, and the head barrel 101 and the first lens 11 are integrally formed, and the head barrel 101 and/or the first lens 11 are connected to the main barrel 100, so that the first lens 11 and the head barrel 101 do not need to be assembled, and an assembly gap between the first lens 11 and the head barrel 101 is eliminated, so that the thickness of the head barrel 101 and the radial dimension of the first lens 11 are ensured to meet the use requirements, and the radial dimension of the head of the lens 1 can be reduced, so that the further miniaturization design of the lens 1 can be realized.

In a second aspect, please refer to fig. 7, which also discloses a camera module 3, including the photo sensor chip 30 and the lens 1 as described in the first aspect, wherein the photo sensor chip 30 is disposed at the image side of the lens 1, and the photo sensor chip 30 is configured to receive an optical signal of an image formed by the lens 1 and convert the optical signal into an electrical signal. Specifically, the camera module 3 may include, but is not limited to, an auto-focus lens, a camera, and the like. The camera module 3 disclosed in the second aspect of the embodiment of the present application can realize the miniaturization design of the camera module 3 by setting the lens 1 with a small radial size of the head provided in the first aspect of the present embodiment.

In a third aspect, referring to fig. 7, the present application further discloses an electronic device 4, which includes the camera module 3 according to the second aspect. Specifically, the electronic device 4 may include, but is not limited to, a cell phone, a watch, a tablet computer, a digital camera, and the like. The electronic device 4 disclosed in the second aspect of the embodiment of the present application can reduce the area occupied by the head of the lens 1 on the surface of the electronic device 4 by providing the camera module 3 provided in the second aspect of the embodiment, so that the surface structure of the electronic device 4 can be more compact. Further, when the electronic device 4 includes a display screen (not shown in the figure), and the head of the lens 1 and the display screen are disposed on the same side surface of the electronic device 4, the area occupied by the head of the lens 1 on the surface of the electronic device 4 can be reduced by using the lens 1 with the smaller radial size of the head, so that the screen occupation ratio of the display screen can be increased, and the user experience can be improved.

The lens, the camera module and the electronic device disclosed in the embodiments of the present invention are described in detail, and the principle and the embodiments of the present invention are explained in detail by applying specific examples, and the description of the embodiments is only used to help understanding the lens, the camera module and the electronic device and the core ideas thereof; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.

Claims

1. A lens barrel characterized by comprising:

the second lens is arranged in the first accommodating space and is positioned on the image side of the first lens.

2. The lens barrel as claimed in claim 1, wherein the head barrel and the first lens are made of different materials, the thickness b1 of the barrel wall of the head barrel is greater than or equal to 0.12mm, and the thickness b2 of the non-optical portion is greater than or equal to 0.2 mm.

3. The lens barrel as claimed in claim 1, wherein the head barrel is made of the same material as the first lens element, and a light shielding layer is provided on the head barrel.

4. The lens barrel according to claim 1, wherein the head barrel protrudes from an object-side surface of the first lens in the optical axis direction, and a height h of the head barrel protruding from the object-side surface of the first lens satisfies: h is more than or equal to 0.02 mm.

5. A lens barrel according to any one of claims 1 to 4, wherein the main cylinder and the head cylinder are made of different materials.

6. The lens barrel according to any one of claims 1 to 4, wherein the main barrel has a first step surface facing the first accommodation space, the first step surface is disposed opposite to an end surface of the first end, the optical portion includes an image side portion and an object side portion, the image side portion is located in the first accommodation space, the object side portion protrudes from the first accommodation space, the non-optical portion is disposed on an outer periphery of the image side portion, and the non-optical portion abuts against the first step surface;

the first end is provided with a first surface connected with the first step surface, the head cylinder is integrally formed on the periphery of the object side part, the head cylinder is provided with a second surface, the second surface faces the first surface, and the second surface is attached to the first surface or has a distance with the first surface.

7. The lens barrel as claimed in claim 6, wherein a light-shielding ring is disposed between the first lens and the second lens, and when the second surface has a distance from the first surface, the light-shielding ring is disposed corresponding to the distance.

8. The lens barrel according to any one of claims 1 to 4, wherein the head barrel is connected to the first end, the head barrel has a second accommodating space, the first lens is located in the second accommodating space, and the second accommodating space is communicated with the first accommodating space.

9. The lens barrel according to claim 8, further comprising a third lens disposed in the second accommodating space and located between the first lens and the second lens.

10. A camera module, comprising a photo-sensing chip and the lens barrel as claimed in any one of claims 1 to 9, wherein the photo-sensing chip is disposed on the image side of the lens barrel.

11. An electronic apparatus characterized by comprising the camera module according to claim 10.