Electronic device and its shooting method

Abstract

The present application provides an electronic device and a shooting method thereof. The electronic device includes: a device body; a first camera carried on the device body and configured to shoot a first picture at a first field of view angle; a second camera carried on the device body and capable of extending or shortening; a display screen for displaying the picture shot by the first camera or the second camera; and a controller configured to: when the first camera shoots the first picture at the first field of view angle, control the display screen to display a first sub-picture corresponding to a first sub-field of view angle, the first sub-field of view angle being smaller than the first field of view angle; control the second camera to extend; and when the extension amount of the second camera reaches a preset value, control the display screen to display a second picture shot by the second camera. The electronic device provided by the present application can improve the shooting experience of users.

Description

Technical Field

[0001] This application relates to the field of imaging technology, and particularly to an electronic device and a shooting method thereof. Background Art

[0002] In recent years, with the rapid development of smart phones, users' requirements for the camera performance of mobile phones have become increasingly high. For example, a wider zoom range, higher resolution, higher imaging quality, etc. These requirements pose higher demands on the mobile phone camera. Currently, mobile phones usually carry two to three cameras with different focal lengths to meet users' shooting needs for different focal lengths. In related technologies, a mobile phone is equipped with a first camera and a second camera, where the second camera can be extended or retracted. During the process of switching from the first camera to the second camera, the second camera needs a certain amount of time to extend. When it extends to a certain extent, the display screen can normally display the picture taken by the second camera. That is to say, the display screen cannot display a normal picture during the extension of the second camera, resulting in a switching delay problem, and thus a poor shooting experience. Summary of the Invention

[0003] This application provides an electronic device and a shooting method thereof. Using this electronic device for shooting can weaken or avoid the switching delay problem, thereby improving the user's shooting experience.

[0004] In a first aspect, this application provides an electronic device, which includes:

[0005] A device body;

[0006] A first camera, carried on the device body and used to shoot a first picture at a first field of view angle;

[0007] A second camera, carried on the device body and capable of being extended or retracted;

[0008] A display screen, used to display the picture taken by the first camera or the second camera; and

[0009] A controller, configured to:

[0010] When the first camera shoots the first picture at the first field of view angle, control the display screen to display a first sub-picture corresponding to a first sub-field of view angle, where the first sub-field of view angle is smaller than the first field of view angle;

[0011] Control the second camera to extend;

[0012] When the extension amount of the second camera reaches a preset value, control the display screen to display a second picture taken by the second camera.

[0013] In a second aspect, the present application further provides a shooting method for an electronic device. The electronic device includes a device body, a first camera, a second camera, and a display screen. The first camera and the second camera are both carried on the device body. The first camera is used to shoot a first picture at a first field of view angle. The second camera can be extended or retracted. The display screen is used to display the picture shot by the first camera or the second camera. The shooting method of the electronic device includes:

[0014] When the first camera shoots the first picture at the first field of view angle, control the display screen to display a first sub-picture corresponding to a first sub-field of view angle, and the first sub-field of view angle is smaller than the first field of view angle;

[0015] Control the second camera to extend;

[0016] When the extension amount of the second camera reaches a preset value, control the display screen to display a second picture shot by the second camera.

[0017] In this embodiment, when the display screen displays the picture shot by the first camera, the second camera will extend accordingly. When the second camera extends to the preset value, the display screen will display the second picture shot by the second camera. That is to say, when the display screen displays the picture shot by the first camera, the second camera will perform a pre-extension operation. It can be understood that no matter how large the pre-extension amount of the second camera is, the time for the display screen to normally display the second picture shot by the second camera will be shortened, thereby overcoming or weakening the problem of camera switching delay in the related art and improving the user's shooting experience. In addition, during the extension process of the second camera, since the display screen displays the first sub-picture corresponding to the first sub-field of view angle, and the first sub-field of view angle is smaller than the first field of view angle, the first sub-picture is a partial picture of the first picture. Therefore, the extended second camera will not appear in the first sub-picture, or only a part of the second camera appears, thereby overcoming or weakening the technical problem caused by the second camera interfering with light in the related art. Description of the Drawings

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings required for the implementation. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0019] Figure 1 Schematic diagram of an electronic device provided in an embodiment of the present application (the second camera is in the retracted state).

[0020] Figure 2Schematic diagram of an electronic device provided by an embodiment of the present application (the second camera is in the popped-up state).

[0021] Figure 3 For Figure 1 Schematic diagram of the electronic device shown in another perspective.

[0022] Figure 4 For Figure 3 Schematic diagram of the second camera in the middle popped-up state in the electronic device shown.

[0023] Figure 5 For Figure 3 Schematic diagram of the second camera in the fully popped-up state in the electronic device shown.

[0024] Figure 6 For Figure 1 Schematic diagram of some components in the electronic device shown.

[0025] Figure 7 For Figure 3 Schematic diagram of the second camera in the popped-up state in the electronic device shown.

[0026] Figure 8 Schematic diagrams of the second camera in different states in the electronic device provided by an embodiment of the present application.

[0027] Figure 9 Schematic diagram of some electrical connection relationships in the electronic device provided by an embodiment of the present application.

[0028] Figure 10 Schematic diagram of some electrical connection relationships in the electronic device provided by another embodiment of the present application.

[0029] Figure 11 For Figure 3 Schematic diagram of the second camera in the popped-up state in the electronic device shown.

[0030] Figure 12 Schematic diagram of an electronic device provided by another embodiment of the present application (the second camera is in the popped-up state).

[0031] Figure 13 Schematic diagram of an electronic device provided by another embodiment of the present application (the second camera is in the retracted state).

[0032] Figure 14 Flowchart of the shooting method of the electronic device provided by an embodiment of the present application.

[0033] Figure 15 Flowchart of the shooting method of the electronic device provided by another embodiment of the present application.

[0034] Figure 16 Flow chart of the shooting method of the electronic device provided in another embodiment of the present application.

[0035] Figure 17 Flow chart of the shooting method of the electronic device provided in another embodiment of the present application. Detailed implementation manners

[0036] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts shall fall within the protection scope of the present application.

[0037] Referring to "embodiment" or "embodiment manner" herein means that the specific features, structures, or characteristics described in conjunction with the embodiment or embodiment manner may be included in at least one embodiment of the present application. The phrase appears in various positions in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0038] In a related art, there are usually at least a first camera and a second camera provided on an electronic device such as a mobile phone. Due to the limited space of the electronic device and to make the electronic device look more beautiful, etc., the first camera and the second camera need to be arranged adjacent to each other. However, since the second camera can be telescoped, when the second camera extends and the first camera is used as the current shooting camera, there will be a problem that the second camera interferes with the incident light of the first camera, that is, the second camera enters the shooting field of view of the first camera. Especially when the first camera is a wide-angle camera or an ultra-wide-angle camera with a large field of view angle, the problem of light interference is more serious, resulting in a bad shooting experience for the user.

[0039] In another related technology, when the first camera is the current shooting camera, in order to prevent the second camera from entering the field of view of the first camera, the second camera is always kept in the retracted state. When the user selects to switch the current shooting camera from the first camera to the second camera, the second camera gradually extends from the retracted state until it reaches the fully extended state, and can only shoot normally when the second camera is in the fully extended state. However, it takes a certain amount of time for the second camera to switch from the retracted state to the fully extended state. During this period, since the second camera cannot shoot normally, the display screen cannot display the picture normally and presents a black screen or a blurred picture. That is to say, during the process of switching from the first camera to the second camera, a switching delay problem will occur, which affects the picture presentation of the display screen and thus leads to a poor shooting experience.

[0040] Based on this, the present application hopes to provide a solution to solve the above technical problems, and its detailed content will be elaborated in the subsequent embodiments.

[0041] Please refer to Figure 1 and Figure 2 , the present application provides an electronic device 100, which may but is not limited to a mobile phone, a tablet computer, a laptop computer, a wearable device (such as a smart watch, a VR device, etc.), a television, a camera device, etc.

[0042] Please further refer to Figure 1 , Figure 2 and Figure 9 , the electronic device 100 includes a device body 30, a first camera 10, a second camera 20, a display screen 50, and a controller 60. The first camera 10 is carried on the device body 30 and is used to shoot a first picture with a first field of view angle γ. The second camera 20 is carried on the device body 30 and can be extended or retracted. And the first camera 10 and the second camera 20 are arranged adjacent to each other. The display screen 50 is used to display the picture shot by the first camera 10 or the second camera 20.

[0043] The controller 60 is electrically connected to the display screen 50 and the second camera 20. The controller 60 is configured to: when the first camera 10 shoots the first picture with the first field of view angle γ, control the display screen 50 to display a first sub-picture corresponding to a first sub-field of view angle α, where the first sub-field of view angle α is smaller than the first field of view angle γ; control the second camera 20 to extend; when the extension amount of the second camera 20 reaches a preset value, control the display screen 50 to display a second picture shot by the second camera 20. It should be noted that the above preset value may be the maximum extension amount of the second camera 20 or less than the maximum extension amount.

[0044] In this embodiment, when the display screen 50 displays the image captured by the first camera 10, the second camera 20 will extend accordingly. When the second camera 20 extends to a preset value, the display screen 50 will display the second image captured by the second camera 20. That is to say, when the display screen 50 displays the image captured by the first camera 10, the second camera 20 will perform a pre-extension operation. It can be understood that no matter how large the pre-extension amount of the second camera 20 is, the time for the display screen 50 to normally display the second image captured by the second camera 20 will be shortened, thereby overcoming or weakening the problem of camera switching delay in the related art. In addition, during the extension process of the second camera 20, since the display screen 50 displays the first sub-image corresponding to the first sub-field of view, and the first sub-field of view is smaller than the first field of view, the first sub-image is a partial image of the first image. Therefore, the extended second camera 20 will not appear in the first sub-image, or only a part of the second camera 20 appears, thereby overcoming or weakening the technical problem caused by the second camera 20 interfering with light in the related art.

[0045] The second camera 20 can also be referred to as a pop-up camera, or a lift-up camera, or a telescopic camera. The electronic device 100 has an opening K30, and the opening K30 can be provided on the display screen 50 or on the device body 30. In this application, only the case where the opening K30 is provided on the device body 30 is used for exemplary illustration. The second camera 20 is at least partially disposed in the device body 30 corresponding to the opening K30, and at least a part of the second camera 20 can extend or retract from the device body 30 through the opening K30. That is to say, the second camera 20 has an extended pop-up state (as Figure 2 shown) and a shortened retracted state (as Figure 1 shown). When the user needs to take a photo, at least a part of the second camera 20 can be controlled to extend out of the device body 30 through the opening K30 (as Figure 2 shown). When the user does not need to take a photo, the second camera 20 can be controlled to retract into the device body 30 through the opening K30 (as Figure 1 shown).

[0046] Of course, in other feasible embodiments, whether the second camera 20 extends or retracts, it can always be inside the device body 30 (or the display screen 50). In this application, only the case where the second camera 20 extends out of the device body 30 when it extends and retracts into the device body 30 when it shortens is used for exemplary illustration.

[0047] Please refer to Figure 3, the device body 30 refers to the main part of the electronic device 100, which includes electronic components that implement the main functions of the electronic device 100 and a housing that protects and carries these electronic components. The device body 30 may include a middle frame 320 and a rear cover 330. The display screen 50 and the rear cover 330 are both connected to the middle frame 320 and are disposed on opposite sides of the middle frame 320, and the side surface of the middle frame 320 is exposed outside the rear cover 330 and the display screen 50.

[0048] Further, the opening K30 may be opened on the rear cover 330. In other embodiments, the opening K30 is opened on the middle frame 320. When the rear cover 330 has the opening K30, both the first camera 10 and the second camera 20 are rear cameras. When the display screen 50 has the opening K30, both the first camera 10 and the second camera 20 are front cameras. It can be understood that the introduction of the device body 30 in this embodiment is only an introduction to an application scenario of the camera module and should not be construed as a limitation on the electronic device 100 provided in this application.

[0049] It should be noted that the first camera 10 and the second camera 20 may be located on the same side of the electronic device 100 or on different sides of the electronic device 100. According to actual needs, the first camera 10 and the second camera 20 may be disposed on any side of the electronic device 100, and this application does not make any limitations in this regard. Taking a mobile phone as an example, the camera module may be disposed on the front, back, or side of the mobile phone. Among them, the so-called front refers to the side of the mobile phone with the display screen 50; the so-called back refers to the side of the mobile phone with the rear cover 330; the so-called side refers to the circumferential side of the middle frame 320 of the mobile phone. It can be understood that for different types of electronic devices 100, the definitions of the front, back, side, etc. may be different, and details of other types of electronic devices 100 will not be elaborated here one by one.

[0050] Please refer to Figure 3 , the second camera 20 has a top surface M20, and the device body 30 has an appearance surface M30. When the second camera 20 protrudes from the appearance surface M30, the distance between the top surface M20 and the appearance surface M30 is the height at which the second camera 20 protrudes from the device body 30 (hereinafter simply referred to as the pop-up height). For subsequent descriptions related to the pop-up height, please refer to this.

[0051] When the second camera 20 is in the retracted state (as Figure 3 shown), its pop-up height is the smallest. It should be noted that its pop-up height may be zero or non-zero. The pop-up states of the second camera 20 include an intermediate pop-up state (as Figure 4 shown) and a fully popped-up state (as Figure 5As shown in the figure. Among them, the fully popped-up state refers to the state when the popping-up height of the second camera 20 is at its maximum value (the elongation is at its maximum value). The intermediate popped-up state is the state where the popping-up height of the second camera 20 is between the fully popped-up state and the retracted state.

[0052] Please refer to Figure 6 , the first camera 10 includes a first lens 110 and a first photosensitive chip 120. Among them, the first lens 110 is used to collect the light of the object to be photographed and focus the light on the first photosensitive chip 120. The first photosensitive chip 120 is used to convert the optical signal into an electrical signal. The first photosensitive chip 120 can be a Charge Coupled Device (CCD) or a Complementary Metal Oxide Semiconductor (CMOS). Similarly, the second camera 20 includes a second lens 210 and a second photosensitive chip 220. Among them, the second lens 210 is used to collect the light of the object to be photographed and focus the light on the second photosensitive chip 220. The second photosensitive chip 220 is used to convert the optical signal into an electrical signal. The second photosensitive chip 220 can be a Charge Coupled Device (CCD) or a Complementary Metal Oxide Semiconductor (CMOS). It should be noted that the first photosensitive chip 120 and the second photosensitive chip 220 can be different parts on a photosensitive chip, that is to say, the first lens 110 and the second lens 210 share a photosensitive chip.

[0053] Please refer to Figure 6 , the electronic device 100 further includes an image processor 340, and the image processor 340 is electrically connected to the first photosensitive chip 120 and the second photosensitive chip 220. The image processor 340 is used to directly or indirectly process the electrical signals received from the first photosensitive chip 120 or the second photosensitive chip 220 to form an image, and then send the image to the display screen 50, and the display screen 50 displays the corresponding image. It should be noted that the image processor 340 can be a part independent of the first camera 10 and the second camera 20. In other embodiments, the image processor 340 may further include a first processor and a second processor. Among them, the first processor is fixed to the first camera 10 and electrically connected to the first photosensitive chip 120; the second processor is fixed to the second camera 20 and electrically connected to the second photosensitive chip 220.

[0054] As people's pursuit of the imaging quality of electronic devices 100 with a shooting function is getting higher and higher, for example, high picture quality and high pixels, it is usually necessary to design the photosensitive chip and the lens in the camera module. For example, when using a photosensitive chip with a large bottom, since the distance between the photosensitive chip and the lens is not adjustable, it is necessary to design a relatively long distance between the lens and the photosensitive chip accordingly. When the field of view (FOV) remains basically unchanged, a relatively long distance between the lens and the photosensitive chip means that the total length of the camera module will also be relatively long. When the camera module is applied to the electronic device 100, the result is that the body of the electronic device 100 will become thicker and thicker, which is not conducive to the thinning of the electronic device 100. In other words, for the thin and light electronic device 100, due to the thickness limitation of the electronic device 100, the length of the camera module will also be limited. When the thickness of the camera module is limited, since the distance between the photosensitive chip and the lens is not adjustable, the distance from the lens to the photosensitive chip in the camera lens module will be limited. If the thickness of the camera lens module is designed to be relatively thick and the thickness of the electronic device 100 is relatively thin, it may cause a relatively thick protrusion of the camera module on the back cover 330 of the electronic device 100. Therefore, when the camera module in the related art is applied to the electronic device 100, it is impossible to achieve the compatibility between the thinning of the electronic device 100 and the high imaging quality of the camera module.

[0055] In the electronic device 100 provided in this application, since the second lens 210 of the second camera 20 can extend out of or retract into the electronic device 100 through the opening K30, while realizing the adjustable distance between the lens and the photosensitive chip, it will not affect the thickness of the electronic device 100, thereby solving the problem of incompatibility between the thinning of the electronic device 100 and the high imaging quality of the camera.

[0056] Please refer to Figure 7 and Figure 8 , the first camera 10 captures a first picture at a first field of view γ. The first field of view γ is the inherent field of view of the first camera 10, and the first camera 10 always captures the first picture at the first field of view γ.

[0057] When the second camera 20 is in the retracted state, the second camera 20 is located outside the field of view corresponding to the first field of view γ. Therefore, the second camera 20 does not exist in the first picture. When the second camera 20 is in the ejected state, at least a part of the second camera 20 is located within the field of view corresponding to the first field of view γ. Therefore, at least a part of the second camera 20 will appear in the first picture.

[0058] The controller 60 is electrically connected to the image processor 340. The controller 60 is further configured to control the image processor 340 to crop the first picture to obtain the first sub-picture corresponding to the first sub-field of view angle α. The second camera 20 is located outside the field of view corresponding to the first sub-field of view angle α. Specifically, when the working camera is the first camera 10 and the second camera 20 is in the popped-up state, the image processor 340 is configured to crop the first picture captured by the first camera 10 to obtain the first sub-picture corresponding to the first sub-field of view angle α. That is to say, the first sub-picture is a partial picture of the first picture. Among them, the first sub-field of view angle α is smaller than the first field of view angle γ, so that the second camera 20 is located outside the first sub-picture corresponding to the first sub-field of view angle α.

[0059] Among them, the first camera 10 can be but is not limited to a wide-angle camera or an ultra-wide-angle camera, and the first field of view angle γ can be but is not limited to 120°, 116°, 110°, 100°, etc. It should be noted that the first sub-field of view angle α is the effective field of view angle of the first camera 10, which is the field of view angle corresponding to the picture (the first sub-picture) that the user can view on the display screen 50.

[0060] In the electronic device 100 provided in the present application, when the second camera 20 is in the popped-up state, the image processor 340 will crop the first picture to remove the second camera 20, so as to obtain the first sub-picture corresponding to the first sub-field of view angle α. That is to say, the cropped first sub-picture is a partial picture of the first picture, and this partial picture does not include the second camera 20. For the user, the content that the user views on the display screen 50 is the first sub-picture that does not include the second camera 20, so that a bad shooting experience can be avoided for the user.

[0061] It should be noted that in Figure 8 in, Figure 8 (a) is a schematic diagram of the second camera 20 in the retracted state in the electronic device 100, Figure 8 (b) is a schematic diagram of the second camera 20 in the intermediate popped-up state in the electronic device 100, Figure 8 (c) is a schematic diagram of the second camera 20 in the fully popped-up state in the electronic device 100. Figure 8 (a) The first field of view angle γ is greater than Figure 8 (b) The first sub-field of view angle α, Figure 8 (b) The first sub-field of view angle α is greater than Figure 8 (c) The first sub-field of view angle α.

[0062] Please refer to Figure 9, optionally, the display screen 50 is a touch screen and is configured to detect a touch operation. When the display screen 50 detects the touch operation, the controller 60 is further configured to control the image processor 340 to crop the first picture according to the touch operation to obtain the first sub-picture.

[0063] Specifically, the display screen 50 is a touch screen and is electrically connected to the controller 60. The display screen 50 is configured to detect a touch operation when the currently working camera of the electronic device 100 is the first camera 10, and generate a trigger signal according to the touch operation. The controller 60 controls the image processor 340 to crop the first picture captured by the first camera 10 according to the trigger signal, and the controller 60 is further configured to control the second camera 20 to extend or retract according to the trigger signal. Herein, the touch operation is an operation in which a user touches the display screen 50. When the user touches the display screen 50, the display screen 50 can sense the touch operation of the user. The touch operation can be in forms such as clicking and swiping.

[0064] Optionally, the trigger signal includes a first trigger signal. When the display screen 50 generates the first trigger signal, the controller 60, according to the first trigger signal, first controls the image processor 340 to crop the first picture to obtain a first sub-picture with a reduced first field of view angle α, and then controls the second camera 20 to extend to increase the pop-up height of the second camera 20. It can be understood that the form of first reducing the first field of view angle α and then extending the second camera 20 can prevent the second camera 20 from never appearing in the first sub-picture.

[0065] Optionally, the trigger signal includes a second trigger signal. When the display screen 50 generates the second trigger signal, the controller 60, according to the second trigger signal, first controls the second camera 20 to retract to reduce the pop-up height of the second camera 20, and then controls the image processor 340 to crop the first picture to obtain a first sub-picture with an increased first field of view angle α. It can be understood that the form of first retracting the second camera 20 and then increasing the first field of view angle α can prevent the second camera 20 from never appearing in the first sub-picture.

[0066] Please refer to Figure 8, optionally, when the first sub-field of view angle α gradually decreases, the controller 60 is further configured to control the second camera 20 to gradually extend. That is, as the first sub-field of view angle α gradually decreases, the controller 60 controls the second camera 20 to gradually extend, that is, the pop-up height of the second camera 20 increases as the first sub-field of view angle α decreases. That is to say, during the process of the decrease of the first sub-field of view angle α, the second camera 20 will pre-pop up and enter the intermediate pop-up state. It can be understood that the first displacement of the second camera 20 from the intermediate pop-up state to the fully pop-up state is less than the second displacement of the second camera 20 from the retracted state to the fully pop-up state. Under the condition that other conditions are the same, the time taken for the first displacement will be less than the time taken for the second displacement. Therefore, the form of pre-popping up the second camera 20 in this embodiment helps to weaken the above-mentioned switching delay problem.

[0067] Please refer to Figure 8 , optionally, as the first sub-field of view angle α gradually increases, the controller 60 controls the second camera 20 to gradually shorten, that is, the pop-up height of the second camera 20 decreases as the first sub-field of view angle α increases. It can be understood that such a setting can not only prevent the second camera 20 from appearing in the first sub-picture, but also keep the second camera 20 in the intermediate pop-up state at any time.

[0068] Optionally, there is a one-to-one correspondence between the first sub-field of view angle α and the pop-up height of the second camera 20, that is, for each first sub-field of view angle α, there is always a corresponding pop-up height. This correspondence can ensure that the second camera 20 is outside the range of the first sub-picture corresponding to the first sub-field of view angle α, and can also keep the second camera 20 in the intermediate pop-up state at any time. The following is an example. Please refer to Table 1. Table 1 shows the correspondence between the field of view angle of the first camera 10 and the pop-up height of the second camera 20 when the second camera 20 is in different pop-up stages.

[0069]

[0070] Optionally, the preset value is the maximum extension amount of the second camera 20. The maximum extension amount means that the pop-up waiting time of the second camera 20 is zero, thereby avoiding or weakening the switching delay problem that occurs during the camera switching process. Specifically, when the second camera 20 extends to the fully popped-up state, the controller 60 switches the currently working camera of the electronic device 100 from the first camera 10 to the second camera 20. Since the second camera 20 in the fully popped-up state can already implement the normal shooting function, at this time, by controlling the controller 60 to switch the currently working camera from the first camera 10 to the second camera 20, the picture displayed on the display screen 50 can be quickly switched from the first sub-picture captured by the first camera 10 to the second picture captured by the second camera 20, thereby avoiding or weakening the switching delay problem that occurs during the camera switching process.

[0071] Please refer to Figure 10 , the second camera 20 includes a second photosensitive chip 220. Before controlling the display screen 50 to display the second picture captured by the second camera 20, the controller 60 is further configured to turn on the second photosensitive chip 220. It can be understood that turning on the second photosensitive chip 220 in advance saves the time spent on starting the second photosensitive chip 220, so that the display screen 50 can display the picture captured by the second camera 20 more quickly, which plays a positive role in solving the switching delay problem of the camera.

[0072] Optionally, the controller 60 is electrically connected to the second photosensitive chip 220. When the second camera 20 is in the intermediate popped-up state, the controller 60 is further configured to turn on the second photosensitive chip 220. That is to say, the second photosensitive chip 220 is turned on in advance before the second camera 20 reaches the fully popped-up state. Therefore, when the second camera 20 reaches the fully popped-up state, the image processor 340 can quickly perform imaging according to the light received by the second photosensitive chip 220. It can be understood that such a setting avoids the process of turning on the second photosensitive chip 220, thereby also playing a positive role in solving the switching delay problem of the camera.

[0073] Optionally, when the camera used by the electronic device 100 switches from the second camera 20 to the first camera 10, the second camera 20 shortens a preset length at a preset speed, and the preset speed is greater than the average speed at which the second camera 20 extends from the retracted state to the fully extended state. That is to say, after switching the working camera from the second camera 20 to the first camera 10, the controller 60 controls the second camera 20 to quickly shorten the preset length to prevent the second camera 20 from appearing within the field of view of the first camera 10. Among them, the preset length can be equal to the maximum value of the pop-up height, that is, the second camera 20 shortens from the fully extended state to the retracted state at the preset speed. The preset length can also have a corresponding relationship with the first sub-field of view angle α, that is, the preset length changes with the change of the first sub-field of view angle α, so that the second camera 20 can be in the pre-pop-up state at any time, facilitating the second camera 20 to quickly enter the normal shooting state when switching from the first camera 10 to the second camera 20 next time.

[0074] Please refer to Figure 8 Optionally, the field of view angle of the second camera 20 is the second field of view angle θ, and the first field of view angle γ is greater than the second field of view angle θ.

[0075] As introduced above, during the process of switching the current shooting camera from the first camera 10 to the second camera 20, the second camera 20 gradually extends, and the first sub-field of view angle α of the first camera 10 gradually decreases. Since the first sub-field of view angle α is smaller than the first field of view angle γ, during this process, the value of the first sub-field of view angle α gradually approaches the second field of view angle θ. It can be understood that the closer the first sub-field of view angle α is to the second field of view angle θ, the smoother and more natural the switching process of the screen displayed on the display screen 50 from the first sub-screen captured by the first camera 10 to the second sub-screen captured by the second camera 20 will be, without being abrupt, thus bringing a better shooting experience to the user.

[0076] Please refer to Figure 8 Optionally, when the extension amount of the second camera 20 reaches a preset value, the first sub-field of view angle α is equal to the second field of view angle θ. Further optionally, when the second camera 20 extends to the fully extended state, the first sub-field of view angle α is equal to the second field of view angle θ.

[0077] It can be understood that when the first sub-field of view angle α is equal to the second field of view angle θ, the difference between the first sub-screen captured by the first camera 10 and the second sub-screen captured by the second camera 20 is very small, and it is difficult for the human eye to identify this difference. If the current shooting camera is switched from the first camera 10 to the second camera 20 at this time, the screen switching process of the display screen 50 will be very natural.

[0078] Please refer to Figure 11 , optionally, the first sub-field of view angle α satisfies the relation: α ≤ 2β, β = arctan((A - R) / (H - h)), H - h > 0. Wherein, H is the height by which the second camera 20 protrudes from the device body 30; h is the height by which the first camera 10 protrudes from the device body 30; A is the center distance between the first camera 10 and the second camera 20; R is the radius of the second camera 20.

[0079] In the above relation, β is the critical angle. The so-called critical angle means that when α is exactly equal to 2β, the second camera 20 is just outside the field of view of the first camera 10. Therefore, the second camera 20 does not appear in the first sub-picture. In this embodiment, setting α to be less than or equal to 2β can always ensure that the second camera 20 is outside the field of view of the first camera 10.

[0080] It should be noted that h can be greater than 0 or equal to 0. It can be understood that when the value of h is larger, the value of β is larger, the optional range of the value of α is larger, and it is less likely for the second camera 20 to interfere with the incident light of the first camera 10. When the value of h is a fixed value, H - h is a variable value. As H - h increases, the value of β decreases, and the value range of α decreases.

[0081] Optionally, the height by which the first camera 10 protrudes from the device body 30 is greater than zero (i.e., h > 0). When the height by which the second camera 20 protrudes from the device body 30 is less than the height by which the first camera 10 protrudes from the device body 30 (i.e., H < h), the average speed of elongation or shortening of the second camera 20 is the first speed. When the height by which the second camera 20 protrudes from the device body 30 is greater than the height by which the first camera 10 protrudes from the device body 30 (i.e., H > h), the average speed of elongation or shortening of the second camera 20 is the second speed. Wherein, the first speed is greater than the second speed.

[0082] It can be understood that when h > 0 and H < h, the second camera 20 does not interfere with the incident light of the first camera 10, that is, the second camera 20 does not appear in the first picture captured by the first camera 10. Therefore, even though the elongation or shortening speed of the second camera 20 is relatively fast, it does not affect the imaging of the first camera 10, and the response sensitivity of the second camera 20 can also be increased.

[0083] Please refer to Figure 12 and Figure 13, the present application further provides an electronic device 100, and the electronic device 100 includes a device body 30, a first camera 10, and a second camera 20. The first camera 10 and the second camera 20 are both carried on the device body 30 and are arranged adjacent to each other.

[0084] The second camera 20 can be extended or retracted, so that the second camera 20 has an extended pop-up state (as Figure 12 shown) and a retracted state of being shortened (as Figure 13 shown). It should be noted that in Figure 12 , the second camera 20 is in a fully popped-up state.

[0085] The maximum field of view angle of the first camera 10 is the first field of view angle γ. The height by which the first camera 10 protrudes from the device body 30 is a preset height, and when the second camera 20 is in the pop-up state, the second camera 20 is located outside the field of view range corresponding to the first field of view angle γ. Among them, the preset height is greater than zero.

[0086] That is to say, in this embodiment, by setting the height by which the first camera 10 protrudes from the device body 30 as the preset height, the second camera 20 is located outside the field of view range corresponding to the first field of view angle γ, so as to prevent the second camera 20 from blocking the incident light of the first camera 10.

[0087] For the introduction of other aspects of the electronic device 100, reference can be made to the description of the electronic device 100 in the previous embodiments, which will not be elaborated here.

[0088] Optionally, the first field of view angle γ satisfies the relational expression: γ≤2β, β = arctan((A - R) / (H - h)), H - h>0, where H is the height by which the second camera 20 protrudes from the device body 30; h is the height by which the first camera 10 protrudes from the device body 30 (preset height); A is the center distance between the first camera 10 and the second camera 20, and R is the radius of the second camera 20.

[0089] Please refer to Figure 14 , the present application further provides a shooting method for an electronic device. For the shooting method of the electronic device, please refer to the description of the electronic device 100 and the corresponding drawings above, which will not be elaborated one by one below.

[0090] The electronic device 100 includes a device body 30, a first camera 10, a second camera 20, and a display screen 50. The first camera 10 and the second camera 20 are both carried on the device body 30. The first camera 10 is used to capture a first picture at a first field of view angle γ. The second camera 20 can be extended or retracted. The display screen 50 is used to display the picture captured by the first camera 10 or the second camera 20.

[0091] The shooting method of the electronic device 100 includes but is not limited to steps S100, S200, and S300.

[0092] S100: When the first camera 10 captures the first picture at the first field of view angle γ, control the display screen 50 to display a first sub-picture corresponding to a first sub-field of view angle α, where the first sub-field of view angle α is smaller than the first field of view angle γ.

[0093] S200: Control the second camera 20 to extend.

[0094] S300: When the extension amount of the second camera 20 reaches a preset value, control the display screen 50 to display a second picture captured by the second camera 20.

[0095] Optionally, the second camera 20 is located outside the field of view corresponding to the first sub-field of view angle α.

[0096] Optionally, the preset value is the maximum extension amount of the second camera 20.

[0097] Please refer to Figure 15 , optionally, the second camera 20 includes a second photosensitive chip 220. Before controlling the display screen 50 to display the second picture captured by the second camera 20, the shooting method of the electronic device 100 further includes step S400.

[0098] S400: Turn on the second photosensitive chip 220.

[0099] Please refer to Figure 16 , optionally, the electronic device 100 further includes an image processor 340. Before controlling the display screen 50 to display the first sub-picture corresponding to the first sub-field of view angle α, the shooting method of the electronic device 100 further includes step S500.

[0100] S500: Control the image processor 340 to crop the first picture to obtain the first sub-picture.

[0101] Please refer to Figure 17, optionally, the display screen 50 is a touch screen and is configured to detect a touch operation, and control the image processor 340 to crop the first picture to obtain the first sub-picture, including step S600.

[0102] S600: When the display screen 50 detects the touch operation, control the image processor 340 to crop the first picture according to the touch operation to obtain the first sub-picture.

[0103] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present application. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present application, and these improvements and refinements are also regarded as the protection scope of the present application.

Claims

1. An electronic device, characterized in that, the electronic device includes: a device body; a first camera, carried on the device body and configured to capture a first picture at a first field of view angle; a second camera, carried on the device body and capable of extending or shortening; a display screen for displaying the picture captured by the first camera or the second camera; and a controller configured to: when the first camera captures the first picture at the first field of view angle, control the display screen to display a first sub-picture corresponding to a first sub-field of view angle, the first sub-field of view angle being smaller than the first field of view angle; control the second camera to extend; when the extension amount of the second camera reaches a preset value, control the display screen to display a second picture captured by the second camera.

2. The electronic device according to claim 1, characterized in that, the second camera is located outside the field of view corresponding to the first sub-field of view angle.

3. The electronic device according to claim 1, characterized in that, the preset value is the maximum extension amount of the second camera.

4. The electronic device according to claim 1, characterized in that, the second camera includes a second photosensitive chip, and before controlling the display screen to display the second picture captured by the second camera, the controller is further configured to turn on the second photosensitive chip.

5. The electronic device according to claim 1, characterized in that, the electronic device further includes an image processor, and the controller is further configured to control the image processor to crop the first picture to obtain the first sub-picture.

6. The electronic device according to claim 5, characterized in that, the display screen is a touch screen and is configured to detect a touch operation. When the display screen detects the touch operation, the controller is further configured to control the image processor to crop the first picture according to the touch operation to obtain the first sub-picture.

7. The electronic device according to claim 1, characterized in that, when the first sub-field of view angle gradually decreases, the controller is further configured to control the second camera to gradually extend.

8. The electronic device according to claim 1, characterized in that, the field of view angle of the second camera is a second field of view angle, and the first field of view angle is greater than the second field of view angle.

9. The electronic device according to claim 8, characterized in that, when the extension amount of the second camera reaches the preset value, the first sub-field of view angle is equal to the second field of view angle.

10. The electronic device according to claim 1, characterized in that, the first sub-field of view angle α satisfies the relation: α≤2β, β = arctan((A - R) / (H - h)), where H - h>0, H is the height of the second camera protruding from the device body; h is the height of the first camera protruding from the device body; A is the center distance between the first camera and the second camera, and R is the radius of the second camera.

11. A shooting method of an electronic device, characterized in that, The electronic device includes a device body, a first camera, a second camera, and a display screen. The first camera and the second camera are both carried on the device body. The first camera is used to capture a first image at a first field of view angle. The second camera can be extended or retracted. The display screen is used to display the image captured by the first camera or the second camera. The shooting method of the electronic device includes: When the first camera captures the first image at the first field of view angle, control the display screen to display a first sub-image corresponding to a first sub-field of view angle, and the first sub-field of view angle is smaller than the first field of view angle; Control the second camera to extend; When the extension amount of the second camera reaches a preset value, control the display screen to display a second image captured by the second camera.

12. The shooting method of the electronic device according to claim 11, wherein, The second camera is located outside the field of view range corresponding to the first sub-field of view angle.

13. The shooting method of the electronic device according to claim 11, wherein, The preset value is the maximum extension amount of the second camera.

14. The shooting method of the electronic device according to claim 11, wherein, The second camera includes a second photosensitive chip. Before controlling the display screen to display the second image captured by the second camera, the shooting method of the electronic device further includes: Turn on the second photosensitive chip.

15. The shooting method of the electronic device according to claim 11, wherein, The electronic device further includes an image processor. Before controlling the display screen to display the first sub-image corresponding to the first sub-field of view angle, the shooting method of the electronic device further includes: Control the image processor to crop the first image to obtain the first sub-image.

16. The shooting method of the electronic device according to claim 15, wherein, The display screen is a touch screen and is used to detect a touch operation. Controlling the image processor to crop the first image to obtain the first sub-image includes: When the display screen detects the touch operation, control the image processor to crop the first image according to the touch operation to obtain the first sub-image.

Images