Flash lamp assembly, control method, image acquisition equipment and electronic equipment

Abstract

The invention discloses a flash lamp assembly, a control method, image acquisition equipment and electronic equipment. The flash lamp assembly comprises a flash lamp, a lens and an auxiliary component, light output by the flash lamp irradiates a target object through the lens; the auxiliary component is deployed for the flash lamp or the lens; and the auxiliary part is configured to respond to a control instruction and adjust operation parameters of the auxiliary part, so that the effective flash range of the light output by the flash lamp after passing through the lens is changed.

Description

Technical Field

[0001] This application relates to the field of mechanical control technology, and particularly to a flash component, a control method, an image acquisition device, and an electronic device. Background Art

[0002] Currently, multiple flashlights are usually arranged in a camera, and by separately controlling the sequence and quantity of each flashlight emitting light, different effective flash ranges can be achieved.

[0003] However, in this solution, a large space is required for deploying multiple flashlights, resulting in a high structural complexity of the camera implementation. Summary of the Invention

[0004] In view of this, this application provides a flash component, a control method, an image acquisition device, and an electronic device as follows:

[0005] A flash component includes: a flashlight, a lens, and an auxiliary component; the light output by the flashlight irradiates a target object through the lens; the auxiliary component is deployed for the flashlight or for the lens;

[0006] The auxiliary component is configured to, in response to a control instruction, adjust its own operating parameters so that the effective flash range of the light output by the flashlight after passing through the lens changes.

[0007] For the above flash component, preferably, the auxiliary component includes a first driving component, and the first driving component is connected to the flashlight;

[0008] Wherein, the first driving component is configured to: in response to the control instruction, drive the flashlight to move relative to the lens so that the effective flash range of the light output by the flashlight after passing through the lens changes.

[0009] For the above flash component, preferably, the auxiliary component includes a variable aperture and a second driving component. The variable aperture is arranged between the flashlight and the lens, and multiple blades in the variable aperture open and close to form a window; the size of the window affects the amount of light output from the flashlight to the lens;

[0010] Wherein, the second driving component is configured to: in response to the control instruction, drive the blades to open and close so that the size of the window changes, so that the effective flash range of the light output by the flashlight after passing through the lens changes.

[0011] A control method includes:

[0012] Obtain the required flash range of the flashlight;

[0013] Send the control instruction to an auxiliary component, where the control instruction is used to set the operating parameters of the auxiliary component so that, under the action of the auxiliary component, the effective flash range of the light output by the flash lamp after passing through the lens matches the required flash range.

[0014] In the above method, preferably, the auxiliary component includes a first driving component, and the first driving component is connected to the flash lamp;

[0015] Wherein, before sending the control instruction to the auxiliary component, the control method further includes:

[0016] Obtain the operating parameters of the first driving component according to the required flash range, where the operating parameters include a first distance;

[0017] Generate a control instruction according to the first distance;

[0018] Wherein, the control instruction is used to control the first driving component to drive the flash lamp to move to a position with a first distance relative to the lens so that the effective flash range of the light output by the flash lamp after passing through the lens matches the required flash range.

[0019] In the above method, preferably, the auxiliary component includes a variable aperture and a second driving component, and the variable aperture is arranged between the flash lamp and the lens; multiple blades in the variable aperture open and close to form a light opening; the size of the light opening affects the amount of light output from the flash lamp to the lens;

[0020] Wherein, before sending the control instruction to the auxiliary component, the control method includes:

[0021] Obtain the operating parameters of the second driving component according to the required flash range, where the operating parameters include a first size;

[0022] Generate a control instruction according to the first size;

[0023] Wherein, the control instruction is used to control the second driving component to drive the blades to open and close so that the light opening changes to the first size so that the effective flash range of the light output by the flash lamp after passing through the lens matches the required flash range.

[0024] In the above method, preferably, obtaining the required flash range of the flash lamp includes:

[0025] Detect the object distance between the target object in the image acquisition range corresponding to the flash lamp and the flash lamp;

[0026] Obtain the required flash range of the flash lamp at least according to the distance of the object; the required flash range includes the target object.

[0027] Preferably, for the above method, obtaining the required flash range of the flash lamp includes:

[0028] In response to the adjustment operation of the user, obtain the operation parameters of the adjustment operation;

[0029] Generate the required flash range of the flash lamp according to the operation parameters; the required flash range matches the operation parameters.

[0030] An image acquisition device includes:

[0031] An image sensor, a flash lamp, a lens, and auxiliary components; the light output by the flash lamp irradiates the target object through the lens; the auxiliary components are deployed for the flash lamp or for the lens;

[0032] Wherein, the auxiliary component is configured to adjust its own operating parameters in response to a control instruction, so that the effective flash range of the light output by the flash lamp after passing through the lens changes;

[0033] The image sensor acquires the image data corresponding to the effective flash range.

[0034] An electronic device includes:

[0035] An image acquisition device, a flash lamp, a lens, auxiliary components, and a processor; the light output by the flash lamp irradiates the target object through the lens; the auxiliary components are deployed for the flash lamp or for the lens;

[0036] Wherein, the processor obtains the required flash range of the flash lamp; sends the control instruction to the auxiliary component, and the control instruction is used to set the operating parameters of the auxiliary component, so that under the action of the auxiliary component, the effective flash range of the light output by the flash lamp after passing through the lens matches the required flash range; the image acquisition device acquires the image data corresponding to the effective flash range.

[0037] As can be seen from the above technical solutions, in a flash component, control method, image acquisition device, and electronic device disclosed in this application, by providing auxiliary components for the flash or lens, the operating parameters of the components themselves can be adjusted through the auxiliary components, so that the effective flash range of the light output by the flash after passing through the lens changes. Instead of deploying multiple flashes to control the change of the effective flash range by controlling the lighting and extinguishing of different flashes, it can be seen that the space occupied by excessive flashes can be saved in this application, thereby reducing the structural complexity of the structures where the flashes are located, such as flash components, image acquisition devices, or electronic devices. Description of the Drawings

[0038] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings required for the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of this application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0039] Figure 1 Structural schematic diagram of a flash component provided by an embodiment of this application;

[0040] Figure 2 Example diagram of an auxiliary component in an embodiment of this application;

[0041] Figure 3 Example diagram of an auxiliary component adjusting operating parameters in an embodiment of this application;

[0042] Figure 4 Another example diagram of an auxiliary component adjusting operating parameters in an embodiment of this application;

[0043] Figure 5 Example diagram of the window change of a variable aperture in an embodiment of this application;

[0044] Figure 6 Flowchart of a control method provided by an embodiment of this application;

[0045] Figure 7 Another flowchart of a control method provided by an embodiment of this application;

[0046] Figure 8 Another flowchart of a control method provided by an embodiment of this application;

[0047] Figure 9 Partial flowchart of a control method provided by an embodiment of this application;

[0048] Figure 10 Example diagram of obtaining the required flash range in an embodiment of this application;

[0049] Figure 11 Another flowchart of a control method provided by an embodiment of the present application;

[0050] Figure 12 Another example diagram for obtaining the required flash range in an embodiment of the present application;

[0051] Figure 13 Schematic structural diagram of an image acquisition device provided by an embodiment of the present application;

[0052] Figure 14 Schematic structural diagram of an electronic device provided by an embodiment of the present application;

[0053] Figure 15 Example diagram for adjusting the light output FOV of a mobile phone flash through a variable aperture proposed by the present application;

[0054] Figure 16 Another example diagram for adjusting the light output FOV of a mobile phone flash through a variable aperture proposed by the present application. Detailed implementation manners

[0055] 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. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0056] Refer to Figure 1 As shown, a schematic structural diagram of a flash component provided by an embodiment of the present application is shown. The flash component can be deployed to an image acquisition device such as a camera, or can be deployed to an electronic device having an image acquisition device such as a mobile phone with a camera. The technical solution in this embodiment is mainly used to reduce the structural complexity of the flash component.

[0057] Specifically, the flash component in this embodiment may include the following structures:

[0058] Flashlight 101, lens 102, and auxiliary component 103;

[0059] Among them, the light output by the flashlight 101 irradiates the target object a through the lens 102; the auxiliary component 103 is deployed for the flashlight 101 or for the lens 102;

[0060] Based on this, the auxiliary component 103 is configured to: in response to a control instruction, adjust its own operating parameters so that the effective flash range of the light output by the flashlight 101 after passing through the lens 102 changes.

[0061] Among them, the flash light 101 can be a light fixture capable of outputting light based on a light-emitting diode (LED) or other light-emitting components. The lens 102 can be a glass lamp shade, i.e., a flash lens, and the lens 102 can protect the flash light 101 from being damaged. The target object a can be an object such as a pedestrian, a building, a plant, an animal, etc. The effective flash range refers to the field of view (FOV) of the light output by the flash light. An image acquisition device such as a camera configured with the flash light component in this embodiment can acquire an image within the FOV.

[0062] The auxiliary component 103 acts on the flash light 101, or the auxiliary component acts on the lens 102. By adjusting its own operating parameters through the auxiliary component 103, the effective flash range of the light output by the flash light 101 after passing through the lens 102 changes, and the changed effective flash range matches the flash requirement characterized by the control instruction. Specifically, the flash requirement refers to the required flash range, that is, the flash range that the light output by the flash light 101 needs to reach in order to enable the target object a to obtain light. The required flash range can be determined based on the lighting scenario of the target object a, or the required flash range can be set by the user.

[0063] It can be seen from the above technical solution that in a flash light component provided by an embodiment of the present application, by setting an auxiliary component for the flash light or the lens, the effective flash range of the light output by the flash light after passing through the lens can be changed by adjusting the operating parameters of the auxiliary component itself, without the need to deploy too many flash lights to control the change of the effective flash range by controlling the lighting and extinguishing of different flash lights. It can be seen that the space occupied by too many flash lights can be saved in the present application, thereby reducing the structural complexity of the structure where the flash light is located, such as the flash light component.

[0064] Based on Figure 1 the flash light component shown, in one implementation, the auxiliary component 103 can include a first driving component 131. As Figure 2 shown, the first driving component 131 is connected to the flash light 101. At this time, the first driving component 131 acts on the flash light 101.

[0065] Based on this, the first driving component 131 is configured to: drive the flash light 101 to move relative to the lens 102 in response to a control instruction, so that the effective flash range of the light output by the flash light 101 after passing through the lens 102 changes.

[0066] In a specific implementation, the first driving component 131 can be a micro motor, mini VCM (Voice Coil Motor). The first driving component 131 can drive the flash 101 to move relative to the lens 102. As a result, the distance between the flash 101 and the lens 102 changes, so that the effective flash range of the light output by the flash 101 after passing through the lens 102 changes. For example, as Figure 3 shown in, the first driving component 131 drives the flash 101 away from the lens 102. The farther the distance between the flash 101 and the lens 102, the more convergent the light of the flash 101 after passing through the lens 102, and the smaller the corresponding effective flash range; the first driving component 131 drives the flash 101 closer to the lens 102. The closer the distance between the flash 101 and the lens 102, the more divergent the light of the flash 101 after passing through the lens 102, and the larger the corresponding effective flash range.

[0067] Specifically, the first driving current provided to the first driving component 131 can be adjusted through a control instruction. The magnitude of the first driving current determines the distance that the flash 101 moves relative to the lens 102. Furthermore, under the action of the first driving current, the distance between the flash 101 and the lens 102 changes, so that the effective flash range of the light output by the flash 101 after passing through the lens 102 changes to match the required flash range corresponding to the control instruction.

[0068] For example, the smaller the first driving current provided to the first driving component 131 according to the control instruction, the farther the distance between the flash 101 and the lens 102, the more convergent the light of the flash 101 after passing through the lens 102, and the smaller the corresponding effective flash range; and the larger the first driving current provided to the first driving component 131 according to the control instruction, the closer the distance between the flash 101 and the lens 102, the more divergent the light of the flash 101 after passing through the lens 102, and the larger the corresponding effective flash range. Based on this, in this embodiment, the corresponding first driving current is provided to the first driving component 131 according to the required flash range corresponding to the control instruction, so that the flash 101 moves to the corresponding first distance relative to the lens 102, and further makes the effective flash range of the light output by the flash 101 after passing through the lens 102 change to match the required flash range corresponding to the control instruction.

[0069] Based on Figure 1 the flash component shown, in one implementation, the auxiliary component 103 can include a variable aperture 132 and a second driving component 133. The variable aperture 132 includes a plurality of vanes, as Figure 4As shown in the figure, the variable aperture 132 is disposed between the flash 101 and the lens 102. The variable aperture 132 opens and closes through a plurality of blades to form an opening b. The size of the opening b affects the amount of light output from the flash 101 to the lens 102. The second driving member 133 is configured to control the opening and closing of the plurality of blades in the variable aperture 132, so that the opening b of the variable aperture 132 becomes larger or smaller.

[0070] For example, as Figure 5 shown in the figure, when the blades are tightened and merged, the size of the opening b becomes smaller, so the amount of light output from the flash 101 to the lens 102 becomes smaller; when the blades are opened, the size of the opening b becomes larger, so the amount of light output from the flash 101 to the lens 102 becomes larger.

[0071] Among them, the second driving member 133 is configured to: drive the blades to open and close in response to a control instruction, so that the size of the opening b changes, so that the effective flash range of the light output from the flash 101 after passing through the lens 102 changes.

[0072] In a specific implementation manner, the second driving member 133 may be a mini VCM. The second driving member 133 can drive the blades in the variable aperture 132 to open and close according to the control instruction, thereby changing the size of the opening b formed by the blades of the variable aperture 132, so that the amount of light output from the flash 101 to the lens 102 changes, and correspondingly, the effective flash range of the light output from the flash 101 after passing through the lens 102 becomes smaller. The larger the opening b, the more light is output from the flash 101 to the lens 102, the more divergent the light output from the flash 101 after passing through the lens 102, and the corresponding effective flash range is larger; the smaller the opening b, the less light is output from the flash 101 to the lens 102, the more convergent the light output from the flash 101 after passing through the lens 102, and the corresponding effective flash range is smaller.

[0073] Specifically, the second driving current supplied to the second driving member 133 can be adjusted through a control instruction. The magnitude of the second driving current determines the size of the opening b formed by the blades of the variable aperture 132. Furthermore, under the action of the second driving current, the size of the opening b changes, so that the effective flash range of the light output from the flash 101 after passing through the lens 102 changes to match the required flash range corresponding to the control instruction.

[0074] For example, the larger the second driving current provided to the second driving component 133 according to the control instruction, the larger the window b, the more light the flash 101 outputs to the lens 102, the more divergent the light after the light output by the flash 101 passes through the lens 102, and the larger the corresponding effective flash range; while the smaller the second driving current provided to the second driving component 133 according to the control instruction, the smaller the window b, the less light the flash 101 outputs to the lens 102, the more convergent the light after the light output by the flash 101 passes through the lens 102, and the smaller the corresponding effective flash range. Based on this, in this embodiment, the corresponding second driving current is provided to the second driving component 133 according to the required flash range corresponding to the control instruction, so that the window b changes to the first size, and then the amount of light output by the flash 101 to the lens 102 is adjusted accordingly. As a result, the effective flash range of the light output by the flash 101 after passing through the lens 102 changes to match the required flash range corresponding to the control instruction.

[0075] Reference Figure 6 , which is a flowchart of the implementation of a control method provided by an embodiment of the present application. This method can be applied to Figure 1 the flash component shown in the figure. The flash component can be deployed to an image acquisition device such as a camera, or to an electronic device with an image acquisition device such as a mobile phone with a camera. The technical solution in this embodiment is mainly used to reduce the structural complexity of the flash component. The method in this embodiment may include the following steps:

[0076] Step 601: Obtain the required flash range of the flash.

[0077] Among them, the required flash range is used to obtain a control instruction. The control instruction is used to set the operating parameters of the auxiliary component in the flash component, and the operating parameters corresponding to the control instruction match the required flash range of the flash.

[0078] Step 602: Send a control instruction to the auxiliary component so that, under the action of the auxiliary component, the effective flash range of the light output by the flash after passing through the lens matches the required flash range.

[0079] From the above technical solution, it can be seen that in a control method provided by an embodiment of the present application, after obtaining the required flash range of the flash, a corresponding control instruction can be sent to the auxiliary component, and the auxiliary component sets the operating parameters. As a result, under the action of the auxiliary component, the effective flash range of the light output by the flash after passing through the lens changes, and there is no need to deploy too many flashes to control the change of the effective flash range by controlling the lighting and extinguishing of different flashes. It can be seen that in the present application, the space occupied by too many flashes can be saved, and further the structural complexity of the structure where the flash is located, such as the flash component, the image acquisition device, or the electronic device, can be reduced.

[0080] In one implementation, the auxiliary component may include a first driving component, and the first driving component is connected to the flash lamp, as Figure 2 shown. Correspondingly, the operating parameter of the auxiliary component is the operating parameter of the first driving component, that is, the first driving current of the first driving component.

[0081] Based on Figure 6 the implementation process shown, in this embodiment, before step 602, the following processing may also be performed, as Figure 7 shown:

[0082] Step 603: Obtain the operating parameter of the first driving component according to the required flash range, and the operating parameter includes a first distance.

[0083] Step 604: Generate a control instruction according to the first distance.

[0084] Wherein, the control instruction is used to adjust the first driving current of the first driving component. Then, under the action of the first driving current, control the first driving component to drive the flash lamp to move to a position with a first distance relative to the lens, so that the effective flash range of the light output by the flash lamp after passing through the lens matches the required flash range.

[0085] In a specific implementation, the first driving component may be a mini VCM. Based on this, under the action of the first driving current, the first driving component can drive the flash lamp to move relative to the lens. Thus, the distance between the flash lamp and the lens changes, so that the effective flash range of the light output by the flash lamp after passing through the lens changes, as Figure 3 shown.

[0086] Based on this, in this embodiment, the first driving current can be obtained according to the required flash range. The first driving current corresponds to the first distance generated by the first driving component driving the flash lamp relative to the lens. Then, a control instruction is generated accordingly. According to the control instruction, the first driving component can be adjusted to have the first driving current. The magnitude of the first driving current determines that the distance that the flash lamp moves relative to the lens is the first distance. Then, under the action of the first driving current, the distance between the flash lamp and the lens changes to make the effective flash range of the light output by the flash lamp after passing through the lens change to match the required flash range corresponding to the control instruction.

[0087] For example, the smaller the first driving current provided to the first driving component according to the control instruction, the farther the distance between the flash lamp and the lens, the more convergent the light output by the flash lamp after passing through the lens, and the smaller the corresponding effective flash range; while the larger the first driving current provided to the first driving component according to the control instruction, the closer the distance between the flash lamp and the lens, the more divergent the light output by the flash lamp after passing through the lens, and the larger the corresponding effective flash range. Based on this, in this embodiment, the corresponding first driving current is provided to the first driving component according to the required flash range in the control instruction, so that the flash lamp moves to the corresponding first distance relative to the lens, and further makes the effective flash range of the light output by the flash lamp after passing through the lens change to match the required flash range corresponding to the control instruction.

[0088] In one implementation, the auxiliary component may include a variable aperture and a second driving component. The variable aperture is arranged between the flash lamp and the lens. As Figure 4 shown, in the variable aperture, multiple blades are opened and closed to form an opening window; the size of the opening window affects the amount of light output from the flash lamp to the lens. Correspondingly, the operating parameter of the auxiliary component may be the operating parameter of the second driving component, that is, the second driving current of the second driving component.

[0089] Based on Figure 6 the implementation process shown, before step 602 in this embodiment, the following processing may also be performed, as Figure 8 shown:

[0090] Step 605: Obtain the operating parameter of the second driving component according to the required flash range. The operating parameter includes a first size.

[0091] Step 606: Generate a control instruction according to the first size.

[0092] Among them, the control instruction is used to adjust the second driving current of the first driving component. The second driving current is used to control the second driving component to drive the blades to open and close so that the opening window changes to the first size, so that the effective flash range of the light output by the flash lamp after passing through the lens matches the required flash range.

[0093] In a specific implementation, the second driving component may be a mini VCM. Based on this, the second driving component can drive the blades in the variable aperture to open and close according to the control instruction, thereby changing the size of the opening window formed by the blades of the variable aperture, so that the amount of light output from the flash lamp to the lens changes, and correspondingly, the effective flash range of the light output by the flash lamp after passing through the lens becomes smaller, as Figure 5 shown.

[0094] Based on this, in this embodiment, the second driving current can be obtained according to the required flash range. The second driving current corresponds to the first size of the opening of the variable aperture driven by the second driving component, and then a control instruction is generated accordingly. The second driving current supplied to the second driving component can be adjusted according to the control instruction. The magnitude of the second driving current determines that the size of the opening formed by the blades of the variable aperture is the first size. Then, under the action of the second driving current, the size of the opening changes so that the effective flash range of the light output by the flash lamp after passing through the lens changes to match the required flash range corresponding to the control instruction.

[0095] For example, the larger the second driving current supplied to the second driving component according to the control instruction, the larger the opening, and the more light the flash lamp outputs to the lens. The light output by the flash lamp is more divergent after passing through the lens, and the corresponding effective flash range is larger. On the contrary, the smaller the second driving current supplied to the second driving component according to the control instruction, the smaller the opening, and the less light the flash lamp outputs to the lens. The light output by the flash lamp is more convergent after passing through the lens, and the corresponding effective flash range is smaller. Based on this, in this embodiment, the corresponding second driving current is provided to the second driving component according to the required flash range corresponding to the control instruction, so that the opening changes to the first size, and then the amount of light output by the flash lamp to the lens is corresponding. As a result, the effective flash range of the light output by the flash lamp after passing through the lens changes to match the required flash range corresponding to the control instruction.

[0096] Based on Figure 6 the implementation process shown above, in one implementation, when obtaining the required flash range of the flash lamp in step 601, it can be implemented in the following way, as Figure 9 shown in

[0097] Step 901: Detect the object distance between the target object in the image acquisition range corresponding to the flash lamp and the flash lamp.

[0098] Among them, in this embodiment, depth data of the target object in the image acquisition range can be collected by components such as a depth sensor deployed for the flash lamp assembly, and the object distance between the target object and the flash lamp (which can also be the lens) can be detected according to the obtained depth data.

[0099] Step 902: Obtain the required flash range of the flash lamp at least according to the object distance.

[0100] Among them, the required flash range includes the target object. For example, as Figure 10As shown, the greater the object distance, the more light convergence is required. At this time, the required flash range is smaller, so that the light can converge to a target object at a greater distance; while the smaller the object distance, the more light divergence is required. At this time, the required flash range is larger, so that the light can diverge to a target object with a larger object area due to the closer distance.

[0101] It can be seen that in this embodiment, the object distance of the target object can be automatically detected, and the required flash range can be determined accordingly. Then, the auxiliary component sets the operating parameters according to the generated control instruction, so that the effective flash range of the light output by the flash lamp after passing through the lens changes to match the required flash range. For example, the effective flash range is consistent with the required flash range.

[0102] Based on Figure 6 the implementation process shown, in one implementation, when obtaining the required flash range of the flash lamp in step 601, it can be achieved in the following manner, as Figure 11 shown:

[0103] Step 1101: Respond to the user's adjustment operation and obtain the operation parameters of the adjustment operation.

[0104] Specifically, in this embodiment, a flash setting interface can be provided, as Figure 12 shown. The user can manually plan the required flash range. Thus, according to the user's adjustment operation on the flash setting interface, the operation parameters in the adjustment operation are obtained, such as the flash area or flash position set by the user.

[0105] Step 1102: Generate the required flash range of the flash lamp according to the operation parameters.

[0106] Among them, the required flash range matches the operation parameters. For example, in this embodiment, the required flash range can be generated according to the flash area or flash position set by the user in the operation parameters.

[0107] It can be seen that in this embodiment, the required flash range can be determined according to the user's adjustment operation. Then, the auxiliary component sets the operating parameters according to the generated control instruction, so that the effective flash range of the light output by the flash lamp after passing through the lens changes to match the required flash range set by the user.

[0108] Refer to Figure 13 , which is a schematic structural diagram of an image acquisition device provided by an embodiment of the present application. The image acquisition device can be a device such as a camera that can perform image acquisition. The image acquisition device in this embodiment may include an image sensor 1301 and a flash lamp assembly 1302. The structure of the flash lamp assembly 1302 can refer to Figures 1 to 5 the embodiment shown. Specifically, the image acquisition device may have the following structure:

[0109] Image sensor 1301, flash 101, lens 102, auxiliary component 103; the light output by the flash 101 is irradiated onto the target object a through the lens 102; the auxiliary component 103 is deployed for the flash 101 or for the lens 102;

[0110] Wherein, the auxiliary component 103 is configured to, in response to a control instruction, adjust its own operating parameters so that the effective flash range of the light output by the flash 101 changes after passing through the lens 102;

[0111] The image sensor 1301 acquires image data corresponding to the effective flash range.

[0112] As can be seen from the above technical solution, in an image acquisition device provided in an embodiment of the present application, by setting an auxiliary component for the flash or the lens, the operating parameters of the auxiliary component can be adjusted to change the effective flash range of the light output by the flash after passing through the lens. In this way, the image sensor can acquire image data corresponding to the changed effective flash range. In this process, it is not necessary to deploy too many flashes to control the change of the effective flash range by controlling the lighting and extinguishing of different flashes. It can be seen that in the present application, the space occupied by too many flashes in the image acquisition device can be saved, thereby reducing the structural complexity of the structure where the flash is located, such as the structure of the image acquisition device.

[0113] Reference Figure 14 , which is a schematic structural diagram of an electronic device provided in an embodiment of the present application. The electronic device can be a device with a camera and thus capable of image acquisition. The electronic device in this embodiment may include an image acquisition device 1401 (such as a camera), a flash component 1402, and a processor 1403. The structure of the flash component 1402 can refer to Figures 1 to 5 The embodiment shown. Specifically, the electronic device may have the following structure:

[0114] Image acquisition device 1401, flash 101, lens 102, auxiliary component 103, and processor 1403; the light output by the flash 101 is irradiated onto the target object a through the lens 102; the auxiliary component 103 is deployed for the flash 101 or for the lens 102;

[0115] Among them, the processor 1403 obtains the required flash range of the flash 101; sends the control instruction to the auxiliary component 103, and the control instruction is used to set the operating parameters of the auxiliary component 103, so that under the action of the auxiliary component 103, the effective flash range of the light output by the flash 101 after passing through the lens 102 matches the required flash range; and the image acquisition device 1401 acquires image data corresponding to the effective flash range.

[0116] It can be seen from the above technical solution that in an electronic device provided by an embodiment of the present application, an auxiliary component is set for the flash or lens, so that the auxiliary component can adjust its own operating parameters so that the effective flash range of the light output by the flash after passing through the lens changes, so that the image acquisition device can collect image data corresponding to the changed effective flash range. In this process, there is no need to deploy too many flashes to control the change of the effective flash range by controlling the on and off of different flashes. It can be seen that in this application, the space occupied by too many flashes can be saved in the electronic device, thereby reducing the structural complexity of the structure where the flash is located, such as the electronic device.

[0117] For example, the flash in a mobile phone camera is typically fixed, meaning the distance between the flash panel and the rear glass is fixed and cannot be adjusted. Based on this, a fixed distance between the flash and the rear glass is often used, with different light groups working together to achieve both divergent and focused flash light. However, this FOV adjustment solution requires more flash units, occupies a larger board area, and consumes more power and has a thermal impact.

[0118] In view of this, this application proposes a solution for adjusting the flash light output angle based on hardware configuration, which can control and adjust the size of the flash light output surface FOV according to the user's wishes and flash requirements, and can be stacked in the limited space of the mobile phone.

[0119] In a specific solution, this application proposes an implementation solution for adjusting the FOV of a mobile phone flash light through a variable aperture, as follows:

[0120] In this application, the original hardware stack remains unchanged, and a variable aperture with a mini VCM is added under the lens, such as Figure 15 As shown in the image, the variable aperture is controlled by the mini VCM to control the size of the window. A larger window results in a more concentrated flash light and a smaller effective flash range. A smaller window results in a more diffuse flash light and a larger effective flash range.

[0121] In another specific solution, the present application proposes an implementation solution for adjusting the light-emitting FOV of a mobile phone flash through a variable aperture, as follows:

[0122] In the present application, the original stack foundation remains unchanged. Under the flash (including the LED small board), a micro VCM is added. As shown in Figure 16 After the VCM is powered on, the current drives the VCM, driving the flash to move up and down, so that the distance between the flash and the glass lamp cover (lens), that is, the air gap, changes, so that the flash is concentrated (i.e., converged) or diverged, thereby changing the FOV of the flash.

[0123] It can be seen that a single lamp can still be used in the present application, the material cost of the LED can be controlled, and the temperature heating of the single lamp can be controlled at the original heat dissipation level without bringing more costs for heat dissipation treatment. Moreover, the present application solves the problem that the illumination angle range of the light emitted by the flash is fixed, resulting in poor photo-taking effects in low-light scenarios. By adjusting and controlling the size of the FOV of the light emitted by the flash, the photo-taking and video-recording effects are improved, and it can be respectively applied in cooperation with portrait focal lengths, ultra-wide-angle focal lengths, and telephoto focal lengths to achieve the function of filling light for the photographed subject and the surrounding environment.

[0124] In this specification, each embodiment is described in a progressive manner. The key point of each embodiment is to illustrate the differences from other embodiments. The same or similar parts among the embodiments can be referred to each other. For the devices disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple, and the relevant parts can be referred to the description of the method part.

[0125] Those skilled in the art can further realize that the units and algorithm steps of each example described in combination with the embodiments disclosed in this article can be implemented by electronic hardware, computer software, or a combination of the two. To clearly illustrate the interchangeability of hardware and software, the composition and steps of each example have been generally described according to functions in the above description. Whether these functions are executed in a hardware or software manner depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of the present application.

[0126] The steps of the method or algorithm described in combination with the embodiments disclosed in this article can be directly implemented by hardware, software modules executed by a processor, or a combination of the two. The software module can be placed in a random access memory (RAM), memory, read-only memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, register, hard disk, removable disk, CD-ROM, or any other form of storage medium well-known in the technical field.

[0127] The foregoing description of the disclosed embodiments enables those skilled in the art to practice or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A flash component, comprising: Flashlight, lens, and auxiliary components; The light output by the flashlight is irradiated onto a target object through the lens; The auxiliary component is deployed for the flashlight or for the lens; The auxiliary component is configured to, in response to a control instruction, adjust its own operating parameters so that the effective flash range of the light output by the flashlight after passing through the lens changes.

2. The flashlight assembly according to claim 1, wherein the auxiliary component includes a first driving component, and the first driving component is connected to the flashlight; Among them, The first driving component is configured to: drive the flashlight to move relative to the lens in response to the control instruction, so that the effective flash range of the light output by the flashlight after passing through the lens changes.

3. The flashlight assembly according to claim 1, wherein the auxiliary component includes a variable aperture and a second driving component, the variable aperture is disposed between the flashlight and the lens, and the variable aperture forms an opening by the opening and closing of a plurality of blades; the size of the opening affects the amount of light output from the flashlight to the lens; Among them, The second driving component is configured to: drive the blades to open and close in response to the control instruction so that the size of the opening changes, so that the effective flash range of the light output by the flashlight after passing through the lens changes.

4. A control method, comprising: Obtaining a required flash range of a flashlight; Sending a control instruction to an auxiliary component, the control instruction being used to set the operating parameters of the auxiliary component so that, under the action of the auxiliary component, the effective flash range of the light output by the flashlight after passing through the lens matches the required flash range.

5. The method according to claim 4, wherein the auxiliary component includes a first driving component, and the first driving component is connected to the flashlight; Among them, Before sending the control instruction to the auxiliary component, the control method further includes: Obtaining the operating parameters of the first driving component according to the required flash range, the operating parameters including a first distance; Generating a control instruction according to the first distance; Wherein the control instruction is used to control the first driving component to drive the flashlight to move to a position having a first distance relative to the lens, so that the effective flash range of the light output by the flashlight after passing through the lens matches the required flash range.

6. The method according to claim 4, wherein the auxiliary component includes a variable aperture and a second driving component, the variable aperture is disposed between the flashlight and the lens; the variable aperture forms an opening by the opening and closing of a plurality of blades; the size of the opening affects the amount of light output from the flashlight to the lens; Among them, Before sending the control instruction to the auxiliary component, the control method includes: Obtaining the operating parameters of the second driving component according to the required flash range, the operating parameters including a first size; Generating a control instruction according to the first size; Wherein, the control instruction is used to control the second driving component to drive the blade to open and close so that the window changes to the first size, so that the effective flash range of the light output by the flash lamp after passing through the lens matches the required flash range.

7. The method according to claim 4, wherein obtaining the required flash range of the flash lamp includes: Detecting the object distance between the target object within the image acquisition range corresponding to the flash lamp and the flash lamp; Obtaining the required flash range of the flash lamp at least based on the object distance; The required flash range includes the target object.

8. The method according to claim 4, wherein obtaining the required flash range of the flash lamp includes: Responding to the adjustment operation of the user to obtain the operation parameters of the adjustment operation; Generating the required flash range of the flash lamp according to the operation parameters; The required flash range matches the operation parameters.

9. An image acquisition device, comprising: An image sensor, a flash lamp, a lens, and an auxiliary component; The light output by the flash lamp irradiates the target object through the lens; The auxiliary component is deployed for the flash lamp or for the lens; Wherein, the auxiliary component is configured to adjust its own operating parameters in response to a control instruction, so that the effective flash range of the light output by the flash lamp after passing through the lens changes; The image sensor acquires the image data corresponding to the effective flash range.

10. An electronic device, comprising: An image acquisition device, a flash lamp, a lens, an auxiliary component, and a processor; the light output by the flash lamp irradiates the target object through the lens; The auxiliary component is deployed for the flash lamp or for the lens; Wherein, the processor obtains the required flash range of the flash lamp; sends a control instruction to the auxiliary component, and the control instruction is used to set the operating parameters of the auxiliary component, so that under the action of the auxiliary component, the effective flash range of the light output by the flash lamp after passing through the lens matches the required flash range; the image acquisition device acquires the image data corresponding to the effective flash range.

Images