CN220584521U - Camera module and shooting equipment - Google Patents

Abstract

The disclosure provides a camera module and shooting equipment, belongs to camera technical field. The camera module comprises a prism, a base, a lens assembly and a driving assembly, wherein the base is provided with a through hole, the lens assembly is positioned in the through hole and is positioned on an emergent light path of the prism, and the top surface of the prism is an incident surface. The driving component is used for driving the lens component to slide along the emergent light path of the prism, and the driving component is positioned on the top side or the bottom side of the lens component. When the camera module is applied to the shooting equipment, the driving assembly and the lens assembly are distributed along the thickness direction of the shooting equipment, the space additionally occupied by the driving assembly is the space of the shooting equipment along the thickness direction, the space of the shooting equipment in the length direction and the width direction cannot be occupied, and arrangement of other devices inside the shooting equipment is facilitated.

Description

Camera module and shooting equipment

Technical Field

The disclosure relates to the field of camera technologies, and in particular, to a camera module and a photographing device.

Background

When the camera module is applied to the photographing apparatus, the camera module and other components are arranged along a length direction or a width direction of the photographing apparatus. However, since the camera module has a large size in the length direction or the width direction of the camera module, a space for accommodating other components is small, making it difficult to arrange the other components having a larger size in a limited space. Therefore, how to reduce the size of the camera module in the longitudinal direction or the width direction of the photographing apparatus becomes a key issue to be solved.

Disclosure of Invention

The present disclosure provides a camera module and shooting device, which can solve the technical problems existing in the related art, and the technical schemes of the camera module and the shooting device are as follows:

in a first aspect, the present disclosure provides a camera module including a prism, a base, a lens assembly, and a driving assembly;

the base is provided with a through hole, the lens component is positioned in the through hole and is positioned on an emergent light path of the prism, and the top surface of the prism is an incident surface;

the driving component is used for driving the lens component to slide along an emergent light path of the prism, and is positioned on the top side or the bottom side of the lens component.

In one possible implementation, the drive assembly is located on the top side of the lens assembly.

In one possible implementation, the drive assembly includes a first drive member and a second drive member;

the first driving piece is fixed on the top wall of the base;

the second driving piece is fixed on the top wall of the lens assembly and is opposite to the first driving piece;

wherein one of the first driving member and the second driving member is a magnet, and the other is a coil.

In one possible implementation, the top wall of the base has a mounting hole, and the first driving member is fixed to the mounting hole;

the top wall of the lens assembly is provided with a mounting groove, and the second driving piece is fixed in the mounting groove.

In one possible implementation, the first driving member is a coil and the second driving member is a magnet.

In one possible implementation, the driving assembly further includes a hall sensor fixed to the coil, the hall sensor being configured to detect displacement of the lens assembly.

In one possible implementation, the camera module further includes a plurality of balls located between the bottom side of the lens assembly and the bottom wall of the base.

In one possible implementation, the lens assembly has a body portion, a first support portion, and a second support portion;

the first supporting part is positioned at the top of the main body part, and the second driving piece is fixed on the first supporting part;

the second support portion is located at the bottom of the main body portion, and the plurality of balls are located between the bottom side of the second support portion and the bottom wall of the base.

In one possible implementation, the second support has two first grooves;

the bottom wall of the base is provided with two second grooves which are respectively opposite to the two first grooves;

the balls are arranged in two rows, each row of balls being located between a second groove and a first groove.

In a second aspect, the present disclosure provides a photographing apparatus having the camera module of any one of the first aspects, and a lens assembly and a driving assembly of the camera module are arranged in a thickness direction of the photographing apparatus.

The technical scheme provided by the disclosure at least comprises the following beneficial effects:

the utility model provides a camera module, camera module will drive the subassembly and set up in the top side or the bottom side of camera module, so when camera module uses in shooting equipment, drive subassembly and camera module arrange along the thickness direction of shooting equipment, and the extra space that occupies of drive subassembly is shooting equipment along thickness direction's space, can not occupy shooting equipment in length direction and width direction's space, is favorable to shooting equipment inside other device's arrangement.

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 disclosure and together with the description, serve to explain the principles of the disclosure. In the drawings:

fig. 1 is a schematic structural diagram of a mobile phone in the related art according to an embodiment of the present disclosure;

fig. 2 is a schematic structural view of a related art camera module according to an embodiment of the present disclosure;

fig. 3 is a schematic structural view of a camera module according to an embodiment of the present disclosure;

FIG. 4 is an exploded view of a camera module shown in an embodiment of the present disclosure;

FIG. 5 is a cross-sectional view of a camera module shown in an embodiment of the disclosure;

fig. 6 is a cross-sectional view of a camera module shown in an embodiment of the disclosure.

Legend description:

1. a prism 11, a top surface;

2. the base, 20, the through hole, 21, the mounting hole, 22, the second recess;

3. a lens assembly 3a, a main body part 3b, a first supporting part 3c, a second supporting part 31, a mounting groove 32, a first groove;

4. a drive assembly 41, a first drive member 42, a second drive member 43, a hall sensor;

5. a ball;

6. an infrared cut-off filter;

7. an image sensor;

100. a camera module;

200. a short-focus camera module;

300. and (5) decorating pieces.

Specific embodiments of the present disclosure have been shown by way of the above drawings and will be described in more detail below. These drawings and the written description are not intended to limit the scope of the disclosed concepts in any way, but rather to illustrate the disclosed concepts to those skilled in the art by reference to specific embodiments.

Detailed Description

For the purposes of clarity, technical solutions and advantages of the present disclosure, the following further details of the embodiments of the present disclosure will be described with reference to the accompanying drawings.

The terminology used in the description of the embodiments of the disclosure is for the purpose of describing the embodiments of the disclosure only and is not intended to be limiting of the disclosure. Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The terms "first," "second," "third," and the like in the description and in the claims, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. Likewise, the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. The word "comprising" or "comprises", and the like, is intended to mean that elements or items that are present in front of "comprising" or "comprising" are included in the word "comprising" or "comprising", and equivalents thereof, without excluding other elements or items. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", etc. are used merely to denote relative positional relationships, which may also change accordingly when the absolute position of the object to be described changes.

In the related art, as shown in fig. 1, when the camera module 100 is applied to a photographing apparatus, if the photographing apparatus is a mobile phone, the camera module 100 and other components are arranged along the length direction of the mobile phone, and the direction along the thickness of the mobile phone is set as a first direction X and the direction along the length of the mobile phone is set as a second direction Y. In order to achieve the automatic focusing of the camera module, the camera module is provided with a driving component 4 between the lens component 3 and the base 2 so as to drive the sliding of the lens component 3. As shown in fig. 2, the camera module 100 for telephoto photographing further includes a prism 1, and the base 2 and the lens assembly 3 are located on an outgoing light path of the prism 1 (thick arrows in fig. 2 indicate an incoming light path and an outgoing light path of the prism 1). The camera module is generally arranged along the width direction of the mobile phone, and when the camera module focuses, the lens assembly 3 of the driving assembly 4 slides along the width direction of the mobile phone.

In the related art, as shown in fig. 2, the driving assembly 4 is located at a side of the lens assembly 3, wherein the side of the lens assembly 3 is parallel to the incident light path of the prism 1. Because the camera module 100 and other components are arranged in parallel along the length direction (the second direction Y) of the mobile phone, the camera module 100 and other components occupy space, and the camera module occupies a larger motherboard space. In addition, as shown in fig. 1, the mobile phone further includes a short-focus camera module 200 for short-focus shooting, so that the mobile phone is more attractive, the back casing of the mobile phone is provided with a protruding decoration 300, and the camera module 100 and the short-focus camera module 200 are both located in the decoration 300. When the size of the camera module 100 in the second direction Y is large, the diameter of the decoration 300 may be excessively large, and even the camera module 100 may not be completely located in the decoration 300.

In view of the above technical problems, the embodiments of the present disclosure provide a camera module, as shown in fig. 3, the camera module 100 includes a prism 1, a base 2, a lens assembly 3, and a driving assembly 4. The base 2 has a through hole 20, the lens assembly 3 is located inside the through hole 20 and on the outgoing light path of the prism 1, wherein the top surface 11 of the prism 1 is an incident surface. The driving component 4 is used for driving the lens component 3 to slide along the emergent light path of the prism 1, and the driving component 4 is positioned on the top side or the bottom side of the lens component 3.

The camera module 100 may be used for tele photography.

The prism 1 may be a triangular prism with a longitudinal section in the shape of an isosceles right triangle, and the incident surface of the prism 1 is perpendicular to the exit surface of the prism 1.

The lens assembly 3 includes a lens barrel and a lens, the lens being located inside the lens barrel.

The camera module further comprises an infrared cut-off filter 6 and an image sensor 7, and the infrared cut-off filter 6 and the image sensor 7 are positioned on the emergent light path of the lens assembly 3. The infrared cut filter 6 is used to block infrared light that interferes with the imaging quality. The image sensor 7 is for converting an optical signal passing through the lens assembly 3 and the infrared cut filter 6 into an electrical signal.

According to the technical scheme provided by the embodiment of the disclosure, the driving assembly 4 is arranged on the top side or the bottom side of the lens assembly 3, so when the camera module 100 is applied to shooting equipment, because the driving assembly 4 and the lens assembly 3 are distributed along the thickness direction of the shooting equipment, the space additionally occupied by the driving assembly 4 is the space of the shooting equipment along the thickness direction, the space of the shooting equipment in the length direction and the width direction is not occupied, the arrangement of other devices inside the shooting equipment is facilitated, and the occupied space of the camera module to a main board of the shooting equipment is reduced.

In addition, in the mobile phone, there is a short-focus camera module 200 for short-focus shooting in addition to the camera module 100 for long-focus shooting. Since the lens assembly is not provided with the prism 1 for the short-focus camera module 200, the incident light directly enters the lens assembly, so that the lens assembly slides along the thickness direction (first direction X) of the photographing apparatus when the short-focus camera module 200 focuses, which results in a large space occupied by the short-focus camera module 200 along the thickness direction of the photographing apparatus. Therefore, the maximum thickness of the photographing apparatus is determined by the short-focus camera module 200, so that even if the size of the camera module 100 for long-focus photographing in the thickness direction of the mobile phone is increased, the thickness of the entire mobile phone is not affected. And when the photographing apparatus is a mobile phone, the diameter of the decoration 300 is reduced after the size of the camera module 100 along the first direction is reduced.

In some examples, as shown in fig. 3, the drive assembly 4 is located on the top side of the lens assembly 3.

The implementation of the drive assembly 4 is illustrated below:

in some examples, as shown in fig. 4 and 5, the drive assembly 4 includes a first drive 41 and a second drive 42. The first driving member 41 is fixed on the top wall or the bottom wall of the base 2, the second driving member 42 is fixed on the top wall or the bottom wall of the lens assembly 3, and the second driving member 42 is opposite to the first driving member 41, and the second driving member 42 is used for driving the lens assembly 3 to slide along the outgoing light path of the prism 1 (thick arrow in fig. 2 indicates the incident light path and the outgoing light path of the prism 1). One of the first driving member 41 and the second driving member 42 is a magnet, and the other is a coil. Wherein the drive assembly 4 may also be referred to as a voice coil motor or voice coil motor.

It will be appreciated that when the first driving member 41 is located on the top wall of the base 2, the second driving member 42 is located on the top wall of the lens assembly 3. When the first driving member 41 is located at the bottom wall of the base 2, the second driving member 42 is located at the bottom wall of the lens assembly 3.

The number of turns of the coil is not limited in the embodiment of the disclosure, and the number of turns can be one turn or multiple turns.

Of course, in other examples, the drive assembly 4 may be other motors, such as a stepper motor, or the like.

In some examples, as shown in fig. 4 and 5, the top wall of the base 2 has a mounting hole 21, and the first driving member 41 is fixed to the mounting hole 21. The top wall of the lens assembly 3 has a mounting groove 31, and the second driving member 42 is fixed to the mounting groove 31. The first driving member 41 may be adhered to the side wall of the mounting hole 21 by using glue, or the first driving member 41 may be interference fit with the mounting hole 21 to fix the first driving member 41 to the base 2. The second driving member 42 may be adhered to the bottom wall of the mounting groove 31 using glue, or the second driving member 42 may be interference-fitted with the mounting groove 31 to fix the second driving member 42 to the lens assembly 3.

The thickness of the first driving member 41 may be less than or equal to the thickness of the base 2, and the depth of the mounting groove 31 may be greater than or equal to the thickness of the second driving member 42, so that the first driving member 41 and the second driving member 42 do not occupy additional space in the first direction X, thereby making the overall size of the camera module in the first direction X smaller.

In some examples, the first driver 41 is a coil, the second driver 42 is a magnet, and the driving assembly 4 may be referred to as a moving magnet voice coil motor. The inside of the base 2 has a connection wire connected with a power supply outside the camera module for energizing the coil. After the coil is electrified, the electromagnetic induction between the coil and the magnet generates lorentz force, and the coil is fixed on the base 2, and the base is fixed, so that the magnet can move under the drive of the lorentz force. Thus, the lens assembly 3 slides under the drive of the magnet.

Of course, in other examples, the first driving member 41 may be a magnet, the second driving member 42 may be a coil, and the driving assembly 4 may be referred to as a moving coil voice coil motor. The magnet is fixed on the base 2, and the base 2 is fixed, so that the coil moves under the drive of lorentz force after the coil is electrified, and the lens assembly 3 is driven to move.

As shown in fig. 4 and 5, to detect the displacement of the lens assembly 3, the driving assembly 4 further includes a hall sensor 43, and the hall sensor 43 is fixed to the coil. Since the magnet drives the lens assembly 3 to move, the hall sensor 43 can sense a change in the magnetic field when the lens assembly 3 moves, thereby determining the displacement of the lens assembly 3. The hall sensor 43 and the coil may be electrically connected to the same controller, so that the hall sensor 43 can feed back the detected displacement of the second driving member 42 to the controller, and then the controller controls the moving distance of the magnet by controlling the magnitude of the current in the coil.

Next, a manner in which the lens assembly 3 is slid is exemplarily described:

as shown in fig. 4 and 6, in order to reduce friction between the lens assembly 3 and the base 2 when sliding, the camera module further includes a plurality of balls 5, and the plurality of balls 5 are located between the bottom side of the lens assembly 3 and the bottom wall of the base 2. In this way, the ball 5 can change the sliding friction between the lens assembly 3 and the base 2 into the rolling friction between the lens assembly 3 and the ball 5, and between the base 2 and the ball 5, thereby making the lens assembly 3 easier to be driven.

In some examples, as shown in fig. 4 and 6, when the driving assembly 4 is located at the top side of the lens assembly 3, the plurality of balls 5 are located between the bottom wall of the lens assembly 3 and the bottom wall of the base 2. The ball 5 occupies only the space in the first direction X so that the size of the lens assembly 3 in the first direction X is increased without increasing the size of the camera module in the Y direction.

Of course. In other examples, the driving assembly 4 may be located at the bottom side of the lens assembly 3, and the plurality of balls 5 may be located between the top wall of the lens assembly 3 and the top wall of the base 2.

The lens assembly 3 of the related art has a main body portion 3a, a first supporting portion 3b, and a second supporting portion 3c, and the first supporting portion 3b, the main body portion 3a, and the second supporting portion 3c are arranged in the second direction, so that the size of the camera module in the second direction Y is further increased.

Thus, as shown in fig. 6, in the embodiment of the present disclosure, the lens assembly 3 has a main body portion 3a, a first support portion 3b, and a second support portion 3c. The first support portion 3b is located at the top of the main body portion 3a, and the second driving piece 42 is fixed to the first support portion 3b. The second support portion 3c is located at the bottom of the main body portion 3a, and the plurality of balls 5 are located between the bottom side of the second support portion 3c and the bottom wall of the base 2. In this way, it is advantageous to further reduce the size of the camera module in the second direction Y.

In some examples, as shown in fig. 6, the second support portion 3c has two first grooves 32. The bottom wall of the base 2 has two second grooves 22, and the two second grooves 22 are opposite to the two first grooves 32, respectively. The balls 5 are arranged in two rows, each row of balls 5 being located between one second groove 22 and one first groove.

In some examples, as shown in fig. 4, the number of balls 5 is 3-6, which is beneficial to reducing friction between the lens assembly 3 and the base 2 and stability of the lens assembly 3 during sliding, and if the number of balls 5 is too large, the lens assembly 3 may be over-positioned, resulting in uneven sliding of the lens assembly 3.

In other examples, the balls 5 may be replaced by rollers, sliding rails, etc. to realize sliding of the lens assembly 3.

The embodiment of the disclosure also provides a photographing apparatus, which is provided with the camera module, and the lens assembly 3 and the driving assembly 4 of the camera module are arranged along the thickness direction of the photographing apparatus.

The photographing device may be a mobile phone.

The photographing apparatus provided in this embodiment, due to the camera module, enables the space along the second direction Y inside the photographing apparatus to be further increased, thereby increasing the accommodation space of other components. When the photographing device is a mobile phone, the space inside the mobile phone along the length direction can be further increased, so that the size of other components such as a mobile phone battery can be increased, and the capacity of the mobile phone battery can be improved.

The foregoing description of the preferred embodiments of the present disclosure is provided for the purpose of illustration only, and is not intended to limit the disclosure to the particular embodiments disclosed, but on the contrary, the intention is to cover all modifications, equivalents, alternatives, and alternatives falling within the spirit and scope of the disclosure.

Claims (10)

1. A camera module, characterized in that the camera module comprises a prism (1), a base (2), a lens component (3) and a driving component (4);

the base (2) is provided with a through hole (20), the lens assembly (3) is positioned in the through hole (20) and positioned on an emergent light path of the prism (1), and the top surface (11) of the prism (1) is an incident surface;

the driving component (4) is used for driving the lens component (3) to slide along an emergent light path of the prism (1), and the driving component (4) is positioned on the top side or the bottom side of the lens component (3).

2. Camera module according to claim 1, characterized in that the drive assembly (4) is located at the top side of the lens assembly (3).

3. Camera module according to claim 2, characterized in that the drive assembly (4) comprises a first drive (41) and a second drive (42);

the first driving member (41) is fixed to the top wall of the base (2);

the second driving piece (42) is fixed on the top wall of the lens assembly (3), and the second driving piece (42) is opposite to the first driving piece (41);

wherein one of the first driving member (41) and the second driving member (42) is a magnet, and the other is a coil.

4. A camera module according to claim 3, wherein the top wall of the base (2) has a mounting hole (21), the first driving member (41) being fixed to the mounting hole (21);

the top wall of the lens assembly (3) is provided with a mounting groove (31), and the second driving piece (42) is fixed to the mounting groove (31).

5. Camera module according to claim 3 or 4, characterized in that the first driving member (41) is a coil and the second driving member (42) is a magnet.

6. Camera module according to claim 5, characterized in that the drive assembly (4) further comprises a hall sensor (43), the hall sensor (43) being fixed to the coil, the hall sensor (43) being adapted to detect a displacement of the lens assembly (3).

7. The camera module according to any one of claims 2-4, further comprising a plurality of balls (5);

the plurality of balls (5) are located between the bottom side of the lens assembly (3) and the bottom wall of the base (2).

8. The camera module according to claim 7, wherein the lens assembly (3) has a main body portion (3 a), a first support portion (3 b), and a second support portion (3 c);

the first supporting part (3 b) is positioned at the top of the main body part (3 a);

the second support portion (3 c) is located at the bottom of the main body portion (3 a), and the plurality of balls (5) are located between the bottom side of the second support portion (3 c) and the bottom wall of the base (2).

9. The camera module according to claim 8, wherein the second support portion (3 c) has two first grooves (32);

the bottom wall of the base (2) is provided with two second grooves (22), and the two second grooves (22) are respectively opposite to the two first grooves (32);

the balls (5) are arranged in two rows, each row of balls (5) being located between a second recess (22) and a first recess.

10. A photographing apparatus, characterized in that the photographing apparatus has a camera module according to any one of claims 1 to 9, and a lens assembly (3) and a driving assembly (4) of the camera module are arranged in a thickness direction of the photographing apparatus.