CN104980541A - Camera module and mobile terminal - Google Patents

Abstract

The invention discloses a camera module and a mobile terminal. The camera module includes: a housing, a first light inlet hole and a second light inlet arranged on opposite sides of the housing, and a first light inlet arranged in the housing. Reflective mirror, first driving mechanism, second reflective mirror and photosensitive element; light enters from the first light inlet or the second light inlet, changes the incident direction through the first reflective mirror, propagates in the housing, passes through the second The reflective lens changes direction and reaches the photosensitive element; the photosensitive element is used to collect images; the first drive mechanism is used to control the rotation of the first reflective lens so as to receive the first reflected light that enters the light from the first light hole After the lens rotates 90 degrees, it receives the light entering from the second light hole. By adding a reflective lens, the number of camera sensors in the mobile terminal of the mobile phone is reduced, and the effect of using the two cameras set opposite to each other at the front and back of the terminal to share a camera sensor is realized. .

Description

A camera module and mobile terminal

technical field

Embodiments of the present invention relate to the technical field of camera devices, and in particular, to a camera module and a mobile terminal.

Background technique

The functions of mobile terminals such as mobile phones are becoming more and more powerful. They not only have the function of calling, but also can take pictures and record videos. Many smart mobile terminals currently on the market have both front and rear cameras, which enrich people's lives.

However, existing mobile terminals such as mobile phones with front and rear cameras need to set two camera modules inside, one camera module is responsible for the front camera, the other camera module is responsible for the rear camera, and each camera module All the modules need to be equipped with a photosensitive element, which not only increases the volume of the smart mobile terminal, but also increases the cost of the product.

Contents of the invention

The present invention provides a camera module and a mobile terminal, which realizes the use of one camera module to control two relatively arranged cameras to take pictures and choose to take pictures, reduces the number of camera modules and sensor elements in the camera module, and reduces the cost .

In a first aspect, an embodiment of the present invention provides a camera module, which includes:

A housing, a first light inlet and a second light inlet arranged on opposite sides of the housing, and a first reflective mirror, a first driving mechanism, a second reflective mirror and a photosensitive element arranged in the housing;

The light enters from the first light entrance hole or the second light entrance hole, propagates in the housing after being changed by the first reflective lens, and reaches the photosensitive element after being changed by the second reflective lens; the photosensitive element is used for collecting Image: the first driving mechanism is used to control the rotation of the first reflective lens, so that after the first reflective lens that receives the light entering from the first light entrance hole rotates 90 degrees, it receives the light entering from the second light entrance .

In the second aspect, the embodiment of the present invention also provides a mobile terminal, which includes:

a first shell and a second shell, the first shell and the second shell are assembled to form an accommodation chamber;

a main board located in the accommodating cavity;

In the camera module described in the first aspect of the present invention, the camera module is located on the main board;

First camera and second camera;

Wherein, the first housing and the second housing are provided with a first through hole and a second through hole, and the first camera and the second camera are respectively arranged in the first through hole and the second through hole , the first through hole and the second through hole correspond to the first light entrance hole and the second light entrance hole of the camera module respectively, so that the light enters the light through the first through hole and the second through hole respectively The first light entrance hole and the second light entrance hole of the above-mentioned camera module.

In the present invention, by setting the first reflective lens on the camera module and the first driving mechanism that controls the rotation of the reflective lens, one camera module is used to control the two cameras that are relatively arranged to take pictures and choose the camera, reducing the number of camera modules and The number of sensing elements in the camera module reduces the cost.

Description of drawings

FIG. 1 is a schematic structural diagram of a camera module provided by Embodiment 1 of the present invention;

Fig. 2 is a structural schematic diagram of the camera module after the first reflective lens is rotated 90 degrees in Fig. 1;

FIG. 3 is a schematic structural diagram of another camera module provided by Embodiment 1 of the present invention;

FIG. 4 is a schematic structural diagram of a camera module provided by Embodiment 2 of the present invention;

Fig. 5 is a schematic structural view of the camera module after the first reflective lens is rotated 90 degrees in Fig. 4;

FIG. 6 is a schematic diagram of a mobile terminal provided by Embodiment 3 of the present invention.

detailed description

The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, only some structures related to the present invention are shown in the drawings but not all structures.

Embodiment one

FIG. 1 is a schematic diagram of a camera module provided by Embodiment 1 of the present invention, which shows the position of the first reflective lens and the propagation trajectory of the light inside the casing when light enters from the first light entrance hole. As shown in Figure 1, the camera module includes:

The casing 110, the first light inlet 121 and the second light inlet 122 arranged on opposite sides of the casing 110, and the first reflective lens 131, the first driving mechanism 141, and the second light reflector arranged in the casing 110 Lens 132 and photosensitive element 150;

The light enters from the first light entrance hole 121, changes the incident direction through the first reflective lens 131, propagates in the housing 110, changes direction through the second reflective lens 132, and reaches the photosensitive element 150; the photosensitive element 150 is used for Image acquisition; the first drive mechanism 141 is used to control the rotation of the first reflective mirror 131, and the rotation of the first reflective mirror 131 is controlled by the first drive mechanism 141, after the first reflective mirror 131 in the current state can be rotated 90 degrees, The light entering from the second light entrance hole 122 is received (refer to FIG. 2 ). The first driving mechanism 141 may preferably be an electric motor, or other devices capable of controlling the rotation of the first reflective mirror 131 .

Wherein, the first reflective lens can be a double-sided plane mirror, and rotates along the axis in the middle of the first reflective lens under the action of the first driving mechanism, and the rotation direction can be clockwise, counterclockwise, or Swing, the amplitude is 90 degrees. As long as the inclination angle of the first reflective lens and the second reflective lens can ensure that the light entering from the first light inlet or the second light inlet passes through the first reflective lens and changes the incident direction, it propagates in the housing and passes through the second reflective lens. It is only necessary for the lens to reach the photosensitive element after changing its direction, which is not specifically limited here. Preferably, the first driving mechanism can be controlled by an application program to rotate the first reflective lens to the corresponding position of the first light inlet or the second light inlet corresponding to the camera to be photographed, so that the light enters the interior of the housing . Referring to FIG. 1, the first reflective lens 131 needs to be rotated to the corresponding position of the corresponding first light entrance hole 121: it can receive all the light entering from the first light entrance hole 121, and can refract the received light to the corresponding position of the first light entrance hole 121. Describe the position of the second light emitting lens 132. Referring to FIG. 2 , the first reflective lens 131 needs to be rotated to the corresponding position of the corresponding second light entrance hole 122: it can receive all the light entering from the second light entrance hole 122, and can refract the received light to the corresponding position of the second light entrance hole 122. Describe the position of the second light emitting lens 132. FIG. 2 is a schematic structural diagram of the camera module after the first reflective lens in FIG. 1 is rotated by 90 degrees. The difference from FIG. 1 is that the light entrance hole through which the light enters the casing 110 is different. As shown in Figure 2, the first reflective lens 131 is located at the corresponding position of the second light inlet 122. After the light enters from the second light inlet 122, it is reflected by the first reflective lens 131, reaches the second reflective lens 132, and then passes through the second reflective lens 132. The reflection from the second reflective mirror 132 reaches the photosensitive element 150, so as to realize the shooting of the scene. In the embodiment of the present invention, by adding the first reflective lens and controlling the rotation of the reflective lens, the two opposite cameras can use the same camera module to take pictures and videos, and the camera module only includes one sensor element, and In the prior art, a camera module needs to be provided for each camera separately, which reduces the number of camera modules and sensing elements in the camera module, and reduces the cost.

Further, the camera module also includes a control chip, which is used to acquire the captured image of the photosensitive element and perform digital zooming. Specifically, for example, an "interpolation" processing method is used to increase or reduce the area of each pixel in the acquired image, so as to achieve the purpose of enlargement or reduction.

FIG. 3 is a schematic diagram of another camera module provided by Embodiment 1 of the present invention. The camera module described in FIG. 3 is a further optimization of the foregoing embodiment. As shown in FIG. 3 , the camera module provided in this embodiment may also include:

a first lens 361 and a second lens 362 located in the casing 110;

The first lens 361 is arranged opposite to the first light entrance hole 121, and is used for converging the light entering from the first light entrance hole 121 to the first reflective lens 131;

The second mirror 362 is disposed opposite to the second light entrance hole 122 , and is used for converging light entering from the second light entrance hole 122 to the first reflective mirror 131 .

As shown in FIG. 3 , the trajectory and direction of the light in the casing 110, for example, when the light enters from the first light hole 121, through the converging effect of the oppositely arranged first lens 361, the light in a larger range The light irradiates on the first reflective lens 131 , after being reflected by the first reflective lens 131 , it reaches the second reflective lens 132 , and then is reflected by the second reflective lens 132 to reach the photosensitive element 150 , so as to realize shooting of scenes in a wider range.

Through the light converging effect of the first lens or the second lens, a wider range of light can enter the first light entrance hole or the second light entrance hole, thereby capturing a wider range of scenes and improving user experience .

Embodiment two

FIG. 4 is a schematic diagram of a camera module provided by Embodiment 2 of the present invention. This figure shows the position of the first reflective lens and the propagation track of the light inside the housing when the light enters from the first light entrance hole. In the process of shooting, when shooting scenes at different distances, it is often necessary to adjust the focal length in order to make the picture clearer. As shown in Figure 4, different from the foregoing embodiments, the camera module in this embodiment may also include:

The zoom lens group 470 is configured to receive light reflected by the first reflective lens 131 and project the light to the second reflective lens 132 .

It should be noted that the zoom lens group 470 may include at least one concave lens; it may also include at least one concave lens and at least one convex lens, and the optical zoom may be realized through the cooperation of the concave lens and the convex lens. FIG. 4 exemplarily adopts a concave lens 471 and a convex lens 472 , but does not limit the embodiment of the present invention.

The zoom lens group 470 is located in the casing 110 and can move between the first mirror 131 and the second mirror 132 to adjust the position of the zoom lens group 470 and the relative positions of the lenses inside.

Further, the camera module in this embodiment may further include a second driving mechanism, which may be located on one side or both sides of the zoom lens group close to the casing, and is used to drive the zoom lens group to perform optical zooming. The second driving mechanism may be an electric motor, which provides power for the zoom lens group to perform optical zooming.

Further, the camera module in this embodiment may further include a control chip, which is used as a core control device of the camera module, and is used to control the second drive mechanism to change the focal length of the zoom lens group to perform optical zoom. Specifically, the camera module can perform optical zoom according to the following process: the control chip calculates the position of the zoom lens group or the relative position of each lens in the zoom lens group according to the optical zoom factor required by the user, and controls the The second driving mechanism operates, and under the control of the second driving mechanism, the zoom lens group is driven to move between the first mirror and the second mirror, or the lenses in the zoom lens group are driven to move relative to each other. Move, so that the zoom lens group or each lens in the zoom lens group moves to the corresponding position, and finally realizes zooming in and zooming out the scene to be photographed according to the required optical zoom factor, and completes the optical zoom.

Compared with the above-mentioned embodiments, where the digital zoom does not change the actual focal length, the camera module provided by this embodiment can perform optical zoom through the zoom lens group to zoom in on the distant scene, allowing the photographer to stand in the distance Clear photos are taken. Therefore, the setting of the above-mentioned camera module makes it possible to adjust the focus when shooting scenes at different distances, so that the pictures or videos after shooting are clearer, and user satisfaction during shooting is improved. It should be noted that FIG. 5 is a schematic structural diagram of the camera module after the first reflective mirror in FIG. 4 is rotated by 90 degrees. As shown in Figure 5, the difference between this schematic diagram and Figure 4 is that Figure 5 shows the inclination angle of the first reflective mirror 131 and the propagation trajectory of the light inside the housing 110 when the light enters from the second light entrance hole 122, the camera The components and beneficial effects of the module are the same as those of the camera module shown in FIG. 4 , and will not be repeated here.

Embodiment three

FIG. 6 is a schematic diagram of a mobile terminal provided by Embodiment 3 of the present invention. It should be noted that the mobile terminal described in this embodiment adopts the camera modules in the foregoing embodiments. As shown in Figure 6, the mobile terminal includes:

A first housing 610 and a second housing 620, the first housing 610 and the second housing 620 are assembled to form an accommodation chamber;

The main board 630 located in the accommodating cavity, the main board 630 also includes other functional devices of the mobile terminal, such as an earphone jack, a microphone, a signal processing device and the like. It should be noted that the other functional devices and leads are not shown in the figure;

A camera module 640, the camera module 640 is located on the main board 630, and the camera module 640 is the camera module described in the above-mentioned embodiments;

The first camera 651 and the second camera 652;

Wherein, the first casing 610 and the second casing 620 are respectively provided with a first through hole 611 and a second through hole 621, and the first camera 651 and the second camera 652 are respectively arranged in the first through hole. Among the hole 611 and the second through hole 621, the first through hole 611 and the second through hole 621 correspond to the first light entrance hole 121 and the second light entrance hole 122 of the camera module respectively, so that the light passes through the The first through hole 611 and the second through hole 621 respectively enter into the first light entrance hole 121 and the second light entrance hole 122 of the camera module.

The mobile terminal in this embodiment may be a mobile phone, a tablet computer, or a notebook computer. The mobile terminal is equipped with corresponding dual cameras, and the rotation of the first mirror in the camera module can be controlled by hardware and/or software, so as to quickly realize the switching between the two cameras, which is convenient for users to take selfies and view For the shooting of the scenery, this embodiment has the same beneficial effect as the above-mentioned camera module because the camera module described in the above-mentioned embodiments is used.

Note that the above are only preferred embodiments of the present invention and applied technical principles. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the protection scope of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and can also include more other equivalent embodiments without departing from the concept of the present invention, and the present invention The scope is determined by the scope of the appended claims.

Claims (9)

1. a camera module, is characterized in that, comprising:

Housing, is arranged on the first light well and second light well of the relative both sides of housing, and is arranged on the first reflex reflector lens, the first driving mechanism, the second reflex reflector lens and the photo-sensitive cell in housing;

Light enters from the first light well or the second light well, changes after incident direction propagate in described housing through the first reflex reflector lens, changes behind direction arrive photo-sensitive cell through the second reflex reflector lens; Described photo-sensitive cell is for gathering image; Described first driving mechanism rotates for controlling the first reflex reflector lens, after entering the described first reflex reflector lens 90-degree rotation of light, receives the light entered from the second light well to make reception from the first light well.

2. camera module according to claim 1, is characterized in that, also comprises:

Be positioned at the first eyeglass and second eyeglass of housing;

Described first eyeglass and described first light well are oppositely arranged, for the light collection that will enter from described first light well to described first reflex reflector lens;

Described second eyeglass and described second light well are oppositely arranged, for the light collection that will enter from described second light well to described first reflex reflector lens.

3. camera module according to claim 1, is characterized in that, also comprises:

Focus-variable lens group, the light that described focus-variable lens group reflects for receiving described first reflex reflector lens, and by ray cast to described second reflex reflector lens.

4. camera module according to claim 3, is characterized in that, also comprises:

Second driving mechanism, carries out optical zoom for driving focus-variable lens group.

5. camera module according to claim 3, is characterized in that, described focus-variable lens group comprises at least one concave lens.

6. camera module according to claim 5, is characterized in that, described focus-variable lens group also comprises at least one convex lens.

7. the camera module according to claim 1 or 4, is characterized in that, also comprises:

Control chip, for obtaining the collection image of described photo-sensitive cell, and carries out Digital Zoom, or, carry out optical zoom for controlling the second driving mechanism.

8. camera module according to claim 4, is characterized in that, described first driving mechanism and/or the second driving mechanism are electro-motor.

9. a mobile terminal, is characterized in that, comprising:

First housing and the second housing, described first housing and the assembling of the second housing form container cavity;

Be arranged in the mainboard of described container cavity;

Arbitrary described camera module in claim 1-7, described camera module is positioned on described mainboard;

First camera and second camera;

Wherein, described first housing and the second housing are provided with the first through hole and the second through hole, described first camera and second camera are separately positioned in described first through hole and the second through hole, first through hole and the second through hole are corresponding with the first light well of described camera module and the second light well respectively, enter the first light well and second light well of described camera module to make light respectively respectively by described first through hole and the second through hole.