CN105049687B - Double-camera mobile terminal - Google Patents

Abstract

The present invention provides a dual-camera mobile terminal, including a first camera module for realizing a first shooting mode, a second camera module, and a reflection device capable of rotating between a first position and a second position. The second camera module includes a first lens, a second lens opposite to the direction of light collection of the first lens, and an imaging device, the first lens is used to collect the object light in front of the first lens, and the second lens is used to collect The object light in front of the second lens, the reflecting device is used for projecting the object light collected by the first lens onto the imaging device when rotating to the first position to realize the second shooting mode, and for when rotating to the second When in position, the object light collected by the second lens is projected onto the imaging device to assist the first camera module to realize the large viewing angle shooting mode.

Description

Dual camera mobile terminal

technical field

The invention relates to portable electronic devices, in particular to a mobile terminal with dual cameras.

Background technique

Currently, smart phones are very popular, and people like to use them to take pictures. Generally, two cameras are used in the industry to achieve two-way shooting. The back of the smartphone is a high-pixel camera for long-range shooting; the front of the smartphone is a low-pixel camera for close-up shots of people, such as self-portraits. With the development of smartphones, wide-angle cameras are also being used in new products. However, the shooting angle of the wide-angle camera is limited and the cost is high. Sometimes when people pursue a larger shooting angle, ordinary smartphone cameras cannot meet the demand.

Contents of the invention

In view of this, the present invention provides a dual-camera mobile terminal, which can realize wide-angle shooting without a wide-angle camera.

The dual-camera mobile terminal provided by the embodiment of the present invention has a first shooting mode, a second shooting mode, and a large viewing angle shooting mode, and the mobile terminal includes a first camera module for realizing the first shooting mode. The mobile terminal also includes a second camera module and a reflective device that can rotate between the first position and the second position. The second camera module includes a first lens, a second lens that is opposite to the direction of light from the first lens, and an imaging device, the first lens is used to collect the object light in front of the first lens, the second lens is used to collect the object light in front of the second lens, and the reflecting device is used to turn the first lens to the first position The object light collected by the first lens is projected onto the imaging device to realize the second shooting mode, and is used to project the object light collected by the second lens onto the imaging device when it is rotated to the second position to assist the first camera module Realize the large viewing angle shooting mode.

In one embodiment, the first shooting mode is a rear camera shooting mode, and the second shooting mode is a front camera shooting mode.

In one embodiment, the first shooting mode is a front camera shooting mode, and the second shooting mode is a rear camera shooting mode.

In one embodiment, the reflecting device rotates between a first position and a second position around a rotating shaft, and the rotating shaft is arranged at a midpoint of a line connecting the first lens and the second lens.

In one embodiment, when the reflective device is rotated to the first position, the reflective device is at 45 degrees to the lighting direction of the first lens; when the reflective device is rotated to the second position, the reflective device and the The lighting direction of the second lens is 45 degrees.

In one embodiment, the mobile terminal further includes a rotation module, configured to drive the reflection device to rotate around a rotation axis between a first position and a second position.

In one embodiment, the mobile terminal further includes a processor electrically connected to the rotation mechanism, for controlling the rotation module to drive the reflection device to rotate between the first position and the second position.

In one embodiment, the rotating module is a servo motor or a stepping motor.

In one embodiment, the imaging pixels of the first camera module and the second camera module are the same.

In one embodiment, the reflection device is a total reflection mirror.

The dual-camera module mobile terminal provided by the present invention uses a reflection device to make the shooting angle of the second camera consistent with the shooting angle of the first camera simulation, so as to assist the first camera module to take pictures, and to carry out the captured photos. Panoramic stitching, so that wide-angle shooting can be achieved without a wide-angle camera module.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the accompanying drawings that need to be used in the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For Those of ordinary skill in the art can also obtain other drawings based on these drawings without making creative efforts.

FIG. 1 is a schematic diagram of a dual-camera mobile terminal disclosed in the first embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a dual-camera mobile terminal in FIG. 1;

Fig. 3 is a block diagram of the dual-camera mobile terminal in Fig. 1;

Fig. 4 is a schematic diagram of a dual-camera mobile terminal disclosed in the second embodiment of the present invention;

FIG. 5 is a schematic structural diagram of the dual-camera mobile terminal in FIG. 4 .

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Referring to FIG. 1 , a first embodiment of the present invention discloses a mobile terminal 100 with dual cameras. The mobile terminal 100 has a first camera module 20 and a second camera module 30 , and provides three modes for users to choose from: the first shooting mode, the second shooting mode and the wide-angle shooting mode. Wherein, the first camera module 20 is used to realize the first shooting mode. The second camera module 30 is used to realize the second shooting mode, and is used to assist the first camera module 20 in shooting to realize the wide-angle shooting mode. In this embodiment, the first shooting mode is a front camera shooting mode, the first camera module 20 is a front camera module for realizing the front camera shooting mode, the second shooting mode is a rear camera shooting mode, and the second On the one hand, the camera module 30 can be used as a rear camera module to realize the shooting mode of the rear camera, and on the other hand, it can also assist the first camera module 20 to realize the large-angle shooting mode, so as to realize the large-angle shooting of the front of the mobile terminal 100 . Preferably, the functional parameters of the first camera module 20 and the second camera module 30 are the same. The mobile terminal 100 can be a portable electronic device such as a smart phone or a tablet computer. The mobile terminal 100 is a smart phone in this embodiment. The mobile terminal 100 also includes a substantially rectangular body 10 , and a reflection device 40 , a rotating module 50 and a processor 60 disposed in the body 10 .

The body 10 includes a front surface 101 , a rear surface 102 opposite to the front surface 101 , an upper end 103 and a lower end 104 opposite to the upper end 103 . The front surface 101 is provided with a display screen 70 . The first camera module 20 is fixed on the main body 10 and close to the upper end 103 . The lighting direction of the first camera module 20 is the forward direction of the front surface 101 .

The second camera module 30 includes a first lens 310 , a second lens 320 with a lighting direction opposite to that of the first lens 310 , and an imaging device 330 . The first lens 310 is disposed on the front surface 101 of the main body 10 and its lighting direction is consistent with that of the first camera module 20 . The first lens 310 is used to collect the object light located in front of the first lens (that is, in front of the mobile terminal 100 ). The second lens 320 is disposed on the rear surface 102 of the body 10 for collecting object light in front of the second lens (ie behind the mobile terminal 100 ). The imaging device 330 is used for receiving the object light collected by the first lens 310 or the second lens 320 to form an image. In this embodiment, the line connecting the first lens 310 and the second lens 320 is perpendicular to the front surface 101 .

The reflection device 40 is a substantially rectangular total reflection mirror in this embodiment. The reflecting device 40 is fixed on a rotating shaft 410 rotatably disposed on the body 10 and is coplanar with the axis of the rotating shaft 410 . In this embodiment, the rotating shaft 410 is disposed close to the midpoint of the line connecting the first lens 310 and the second lens 320 and perpendicular to the front surface 101 . The reflection device 40 can rotate relative to the main body 10 from the first position to the second position through the rotating shaft 410 . In this embodiment, when the reflecting device 40 is in the first position (or the second position), the reflecting device 40 rotates clockwise (or counterclockwise) 90 degrees around the rotation axis 410 and then rotates to the second position (or the first position). . When the reflection device 40 rotates to the first position, the reflection surface 401 of the reflection device 40 faces the first lens 310 and forms an angle of 45 degrees with the first lens 310, so that all the object rays collected by the first lens 310 are projected into the imaging device 330, so as to realize the second shooting mode to shoot objects behind the mobile terminal 100. When the reflection device 40 rotates to the second position, the reflection surface 401 of the reflection device 40 faces the second lens 320 and forms an angle of 45 degrees with the second lens 320, so that all the object rays collected by the second lens 310 are projected into the imaging The device 330 can assist the first camera module 20 to take pictures to realize the wide-angle shooting mode. by

Wherein, the above-mentioned front of the mobile terminal 100 refers to the direction facing the front surface 101 in a normal use state, and the rear of the mobile terminal 100 refers to the direction facing the rear surface. Taking a smart phone as an example, the front refers to the direction where one end of the display screen is facing, and the rear refers to the direction where the back cover facing away from the display screen is facing.

The rotation module 50 is used to drive the reflection device 40 to rotate around the rotation axis 410 . In this example, the rotating module 50 is a servo motor or a stepping motor. The rotating module 50 includes a driving module 510 electrically connected to the processor 60 . The driving module 510 works under the control of the processor 60 .

The processor 60 is electrically connected to the driving module 510 , the first camera module 20 and the second camera module 30 . The processor 60 is used to control the first camera module 20 and the second camera module 30 to perform a shooting action according to the shooting mode selected by the user. Wherein, the user can select a shooting mode through a function menu or a function button provided on the mobile terminal 100 . Specifically, when the user selects the first shooting mode, the processor 60 controls the first camera module 20 to take a picture. When the user selects the second shooting mode, the processor 60 first controls the driving module 510 to drive the reflective device 40 to rotate to the first position. At this time, the reflective device 40 projects the object light collected by the first lens 310 to the imaging device 330 for processing The controller 60 further controls the imaging device 330 to take pictures according to the light from the first lens 310 . When the user selects the wide viewing angle shooting mode, the processor 60 first controls the driving module 510 to drive the reflecting device 40 to rotate 90 degrees to the second position. At this time, the reflection device 40 projects the object light collected by the second lens 320 to the imaging device 330, and the processor 60 further controls the imaging devices 330 of the first camera module 20 and the second camera module 30 to take pictures simultaneously, and obtain The images are spliced to form a panoramic large-view image.

Based on the above-mentioned mobile terminal 100, when the user and multiple friends need to take a selfie through the mobile terminal 100, if the first camera module 20 is used to take pictures in the first camera shooting mode, it may not be possible due to the limited viewing angle range. All friends are photographed in the same picture. At this time, the user can select the large-angle shooting mode, that is, the second camera module 30 assists the first camera module 20 to take pictures, and the existing image processing software similar to Photoshop and the like The photos captured by the first camera module 20 and the second camera module 30 are panorama stitched, so as to realize shooting with a large viewing angle.

FIG. 4 and FIG. 5 are schematic diagrams of the mobile terminal 200 disclosed in the second embodiment of the present invention. The mobile terminal 200 differs from the mobile terminal 100 in the first embodiment in that: the first shooting mode is a rear camera shooting mode, the first camera module 20 is a rear camera module for realizing the rear camera shooting mode, and the second The shooting mode is a front camera shooting mode, and the second camera module 30 is a front camera module for realizing the front camera shooting mode. In this way, the first camera module 20 (that is, the front camera module) rotates and assists the second camera module 30 (the rear camera module) to realize a large-angle shooting mode, thereby increasing the shooting of the scene behind the mobile terminal 200 perspective.

It can be understood that in other embodiments, the first camera module 20 and the second camera module 30 can also be arranged in other positions. For example, the first camera module 20 and the second camera module 30 can also be arranged close to the upper end 103 and the lower end 104 respectively, and the connecting line between the two is perpendicular to the upper end 103 .

What is disclosed above is only a preferred embodiment of the present invention, and of course it cannot limit the scope of rights of the present invention. Those of ordinary skill in the art can understand all or part of the process for realizing the above embodiments, and according to the rights of the present invention The equivalent changes required still belong to the scope covered by the invention.

Claims (7)

1. A dual-camera mobile terminal has a first shooting mode, a second shooting mode and a large viewing angle shooting mode, and the mobile terminal includes a first camera module for realizing the first shooting mode, wherein the mobile The terminal includes a body, the body includes a front surface and a rear surface opposite to the front surface, the lighting direction of the first camera module is fixed, and the lighting direction of the first camera module is the front surface of the body. In the opposite direction; the mobile terminal also includes a second camera module and a reflective device capable of rotating between the first position and the second position, and the functional parameters of the first camera module and the second camera module are the same; the second The camera module includes a first lens, a second lens opposite to the direction in which the first lens collects light, and an imaging device. The first lens is arranged on the rear surface of the body for collecting object light in front of the first lens. The second lens The second lens is arranged on the front surface of the body, and is used to collect the object light in front of the mobile terminal in front of the second lens. The lighting direction of the second lens is the same as the lighting direction of the first camera module. The reflecting device uses Projecting the object light collected by the first lens onto the imaging device when turning to the first position to realize the second shooting mode, and projecting the object light collected by the second lens onto the imaging device when rotating to the second position On the imaging device, the first camera module is used to assist the large viewing angle shooting mode; The mobile terminal also includes a rotating module and a processor, the processor is electrically connected to the rotating module, the first camera module and the second camera module, and the processor is used to The shooting mode controls the first camera module and the second camera module to perform shooting actions, including: When the user selects the first shooting mode, the processor controls the first camera module to take pictures; When the user selects the second shooting mode, the processor first controls the driving module to drive the reflecting device to rotate to the first position, and then controls the imaging device to shoot according to the light from the first lens; When the user selects the large viewing angle shooting mode, the processor first controls the driving module to drive the reflecting device to rotate to the second position, and then controls the first camera module and the second camera module The imaging devices of the group shoot at the same time, and the resulting images are spliced to form a panoramic large viewing angle image; Wherein, the user selects the shooting mode through the function keys arranged on the mobile terminal; the body also includes an upper end and a lower end opposite to the upper end, and the first camera module and the second camera module are also close to each other. The upper end and the lower end are arranged, and the connecting line between the two is perpendicular to the upper end. 2. The dual-camera mobile terminal according to claim 1, wherein the first shooting mode is a front camera shooting mode, and the second shooting mode is a rear camera shooting mode. 3. The dual-camera mobile terminal according to claim 1, wherein the reflecting device rotates between a first position and a second position around a rotating shaft, and the rotating shaft is arranged between the first lens and the second lens. The midpoint of the line connecting the lenses. 4. The dual-camera mobile terminal according to claim 3, wherein when the reflective device is rotated to the first position, the reflective device is at 45 degrees to the lighting direction of the first lens; when the reflective device When rotated to the second position, the reflection device and the light-collecting direction of the second lens form an angle of 45 degrees. 5. The dual-camera mobile terminal according to claim 3, wherein the rotating module is a servo motor or a stepping motor. 6. The dual-camera mobile terminal according to claim 1, wherein the imaging pixels of the first camera module and the second camera module are the same. 7. The dual-camera mobile terminal according to any one of claims 1-6, wherein the reflection device is a total reflection mirror.