WO2018086372A1

WO2018086372A1 - Mobile terminal and strobe light assembly thereof, and strobe light control method

Info

Publication number: WO2018086372A1
Application number: PCT/CN2017/093278
Authority: WO
Inventors: 陈金锋
Original assignee: 广州市朝通科技有限公司
Priority date: 2016-11-14
Filing date: 2017-07-18
Publication date: 2018-05-17
Also published as: CN106569373A; CN106569373B

Abstract

Disclosed are a mobile terminal and a strobe light assembly thereof, and a strobe light control method. The strobe light assembly comprises a strobe light (3), a bracket assembly (2) and a drive assembly, wherein the bracket assembly (2) comprises an annular bracket (21) and a spherical base (22); the strobe light (3) is mounted on the spherical base (22); the spherical base (22) is located on the inner side of the annular bracket (21) and two sides of the spherical base are rotatably connected to the annular bracket (21) by means of a first rotating shaft; the drive assembly comprises a first electric motor (5), a second electric motor (6) and a sliding table (7); orientations of the first electric motor (5) and the second electric motor (6) are perpendicular to each other; the annular bracket (21) is connected to an output shaft of the second electric motor (6) by means of a second rotating shaft (211); the first electric motor (5) is arranged on the sliding table (7) in a slipping manner; the length direction of the sliding table (7) is the same as the orientation of the first electric motor (5); and the first rotating shaft passes through the annular bracket (21) and is connected to an output shaft of the first electric motor (5) by means of a universal joint (4). The adjustable angle of a strobe light of a mobile terminal is realized so as to increase the wide angle of irradiation of the strobe light and remedy the defect of unevenness of exposure of the strobe light.

Description

Title: Mobile terminal and its flash unit, flash control method

[0001] The present invention relates to the field of communication equipment, and more particularly, to a mobile terminal and a flash unit thereof

, flash control method.

Background technique

[0002] At present, a mobile phone, a tablet, and the like are provided with a flash on the back of the mobile terminal. The flash can be used as a flashlight on the one hand, and can also be used as a fill light on the other hand.

[0003] However, such mobile terminals currently on the market only have one flash lamp. In actual use, for example, in the flashlight mode, the wide angle of illumination is limited, and cannot be involved in actual needs; for example, in the photographing mode, Although a single flash can function as a fill light, it is limited by its mounting position (on one side of the lens), resulting in uneven exposure of the final shot.

[0004] The above situation is caused by two defects of insufficient number of flash lamps and unadjustable angle of the flash lamp; therefore, it is necessary to propose a new solution to solve the above problem.

technical problem

In view of the deficiencies of the prior art, a first object of the present invention is to provide a flash unit having a function of angle adjustment.

Problem solution

Technical solution

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] A flash unit includes a flash, a bracket assembly, and a drive assembly; the bracket assembly includes an annular bracket and a spherical base; the flash is mounted on a spherical base; the spherical base is located on the ring The inner side of the frame is rotatably connected to the annular bracket by the first rotating shaft;

[0008] The driving assembly includes a first motor, a second motor, and a sliding table, the first motor is perpendicular to the orientation of the second motor; the annular bracket is coupled to the output shaft of the second motor through the second rotating shaft; The first motor is slidably disposed on the sliding table, and the longitudinal direction of the sliding table is the same as the orientation of the first motor; the first rotating shaft passes through the annular bracket and is connected to the output shaft of the first motor through the universal joint . [0009] Preferably, further comprising a housing, the bracket assembly and the driving assembly are disposed in the housing; the top wall of the housing is provided with a circular opening for partially extending the spherical base; A wiring plug is disposed on a bottom wall of the housing, and the wiring plug is electrically connected to the first motor, the second motor, and the flash.

[0010] Preferably, the wire of the flash lamp passes through the spherical base and protrudes from the other side of the spherical base.

[0011] A second object of the present invention is to provide a mobile terminal having a function of adjustable flash angle.

[0012] In order to achieve the above object, the present invention provides the following technical solutions:

[0013] A mobile terminal includes a housing, a camera, and a camera control module, wherein at least two flash units according to any one of claims 2-3 are mounted on the back of the housing;

[0014] a rear surface of the housing is provided with a mounting slot adapted to the housing of the flash unit; a mounting socket mating with the wiring plug is mounted on the wall of the mounting slot;

[0015] The mobile terminal further includes:

[0016] a direction control module, configured to generate a corresponding direction operation instruction based on an operation of the user;

[0017] a brightness control module, configured to generate a corresponding brightness operation instruction based on a user operation;

[0018] a main control module, coupled to the direction control module and the brightness control module, the main control module generates a corresponding direction control instruction in response to the operation instruction, and generates a corresponding brightness control instruction in response to the brightness operation instruction ;

[0019] a light driving module coupled to the main control module and the wiring socket, wherein the lighting driving module controls the brightness of the flash in response to the brightness control instruction;

And a motor driving module coupled to the main control module and the wiring socket, wherein the motor driving module controls the rotation of the first motor and the second motor in response to the direction control instruction.

[0021] Preferably, the bottom wall of the housing is provided with a circular groove, the wiring plug is located in the circular groove; the socket is arranged in a cylindrical shape matching the circular groove.

[0022] Preferably, the flash unit is mounted at an upper or lower intermediate position or a position of both ends of the back of the mobile terminal.

[0023] Preferably, the mobile terminal is a mobile phone or a tablet computer.

[0024] Preferably, the original default illumination direction position of the flash unit is the position of the camera in the middle direction [0025] A third object of the present invention is to provide a flash control method, which can be implemented on a mobile terminal. The flash is angled.

[0026] In order to achieve the above object, the present invention provides the following technical solutions:

[0027] A flash control method based on the mobile terminal described in the foregoing solution, comprising the following steps: [0028] Sl, the direction control module generates a direction operation instruction based on an operation of the user;

[0029] the brightness control module generates a brightness operation instruction based on a user's operation;

[0030] S2, the main control module receives the direction operation instruction and the brightness operation instruction from the direction control module and the brightness control module, respectively, and generates corresponding direction control instructions and brightness control instructions accordingly;

[0031] S3, the light driving module receives the brightness control instruction from the main control module, and accordingly outputs the corresponding driving current to the flash;

[0032] The direction driving module receives the direction control command from the master module, and accordingly outputs a corresponding pulse signal to the first motor and the second motor.

[0033] Preferably, the method further comprises: automatically adapting the illumination direction of the calibration flash according to the direction in which the camera is compared.

Advantageous effects of the invention

Beneficial effect

[0034] Advantages of the present invention over the prior art are:

[0035] 1. There are multiple flash sets, and in the flashlight mode, the wide angle of the flash can be increased;

[0036] 2. The angle of the flash lamp is adjustable. In the photographing mode, the user can adjust the deflection angle and brightness of each flash lamp according to his own needs to obtain a better exposure degree;

[0037] 3. The flash unit adopts a modular design, which is very convenient to install and use.

Brief description of the drawing

DRAWINGS

1 is an internal structural view of a flash unit in Embodiment 1;

2A and 2B are external structural views of the flash unit of the embodiment 1;

3A is a front elevational view of a mobile terminal in Embodiment 2; [0040] FIG.

[0041] FIG. 3B is a schematic view showing one of the mounting forms of the flash unit of Embodiment 2;

4A is a schematic view showing another mounting form of the flash unit in Embodiment 2;

4B is a schematic view showing another installation form of the flash unit in Embodiment 2;

5 is a flowchart of Embodiment 3. [0045] Reference numerals: 1, a housing; 11, a circular mouth; 12, a circular groove; 13, a wiring plug; 2, a bracket assembly; 21, a ring bracket; 211, a second shaft; 3, flash base; 4, universal joint; 5, the first motor; 6, the second motor; 7, the sliding table; 8, the outer casing; 81, the installation slot; 82, the wiring socket.

BEST MODE FOR CARRYING OUT THE INVENTION

Embodiment 1 :

1, FIG. 2A, FIG. 2B, a flash unit includes a housing 1, a flash unit 3, a carriage assembly 2, and a drive assembly; wherein the bracket assembly 2 and the drive assembly are both mounted in the housing 1. A wiring plug 13 is disposed on the bottom wall of the housing 1.

[0048] The bracket assembly 2 includes an annular bracket 21 and a spherical base 22; a top wall of the housing 1 is provided with a circular opening 11 for partially extending the spherical base 22, and the flash 3 is mounted on the spherical base 22 is located outside the casing 1, and the wire of the flash lamp 3 passes through the spherical base 22 and is electrically connected to the terminal plug 13 (partial pin) to protrude from the other side of the spherical base ₂₂ ; the spherical base ₂₂ is located in the ring inside the carriage _21, the carriage 21 on both sides thereof pivotally connected by a first shaft and annular;

[0049] The drive assembly includes a first motor 5, a second motor 6, and a slide table 7, and the signal lines of the first motor 5 and the second motor 6 are electrically connected to the wiring plug 13 (partial pins). The first motor 5 is perpendicular to the orientation of the second motor 6; the annular bracket 21 is coupled to the output shaft of the second motor 6 via the second rotating shaft 211; the first motor 5 is slidably disposed on the sliding table 7, the length of the sliding table 7 The direction is the same as the orientation of the first motor 5; the first shaft passes through the annular bracket 21 and is connected to the output shaft of the first motor 5 via the universal joint 4.

[0050] The working principle of this embodiment is:

[0051] When it is necessary to adjust the left and right deflection angle 吋 of the flash lamp 3, the first motor 5 is controlled to rotate, and the output shaft of the first motor 5 drives the first rotating shaft to rotate through the universal joint 4, thereby causing the spherical base 22 to rotate left and right. , the flash lamp 3 located on the spherical base 22 can be rotated left and right;

[0052] When it is necessary to adjust the vertical deflection angle 吋 of the flash 3, the second motor 6 is controlled to rotate, and the output shaft of the second motor 6

The second rotating shaft 211 is rotated to further rotate the ring bracket 21 up and down, so that the spherical base 22 and the flasher 3 can be rotated up and down. Embodiments of the invention

Example 2:

[0054] A mobile terminal, which may be a mobile phone or a tablet computer. Referring to Figures 3A and 3B, which includes the housing 8, the housing 8 is provided with a camera 9; the back of the housing 8 is provided with mounting slots 81, and the number of mounting slots 81 can be appropriately increased according to actual needs.

[0055] The flash unit of the first embodiment is disposed in each of the mounting slots 81; the wall of the mounting slot 81 is mounted with a terminal socket 82 that mates with the connector plug 13.

[0056] In this embodiment, the specific arrangement of the connection socket 82 and the connection plug 13 is: a circular groove 12 is disposed on the bottom wall of the housing 1, and the connection plug 13 is located in the circular groove 12; That is, the terminal socket 82 is provided in a cylindrical shape that cooperates with the circular groove 12. Thus, after the flash unit is mounted, the housing 1 of the flash unit is entirely embedded in the mounting groove 81, and the terminal socket 82 is inserted into the circular recess 12, and finally, the wiring plug 13 can be inserted into the wiring socket 82. on. In this way, on the one hand, the water repellency can be improved, and on the other hand, the flash unit can be mounted more stably and not easily detached.

[0057] As an example of the present embodiment, the following describes the setting of different numbers of flash units and their different positions:

In FIG. 3B, the camera 9 is in the middle of the casing 8, and the number of flash units is two, and is respectively on the left and right sides of the camera 9.

In FIG. 4A, the camera 9 is in the upper left corner position of the outer casing 8, and the number of the flash units is two, and is located at the upper and lower intermediate positions of the outer casing 8, respectively.

In FIG. 4B, the camera 9 is in the middle of the outer casing 8, and the number of flash units is four, and is at both ends of the upper and lower portions of the outer casing 8, respectively.

[0061] In this embodiment, the mobile terminal further includes a camera control module, a direction control module, a brightness control module, and a main control module.

[0062] The direction control module is configured to generate a corresponding direction operation instruction based on the operation of the user; specifically, the direction adjustment button is set in advance on the flashlight interface or the photographing interface, and the user can directly adjust the direction after the flashlight interface or the photographing interface is opened. Button to control the direction of the flash; each time the button is pressed in one direction, the direction control module will generate the corresponding direction operation command.

[0063] the brightness control module is configured to generate a corresponding brightness operation instruction based on a user's operation; specifically, The brightness adjustment button is set on the flashlight interface or the camera interface. After the user touches the flashlight interface or the camera interface, the brightness of the flash can be directly controlled by adjusting the brightness button; after pressing the button of "brightness +" or "brightness -", the brightness The control module will generate the corresponding brightness operation instructions.

[0064] the main control module is coupled to the direction control module and the brightness control module, for receiving the direction operation instruction and the brightness operation instruction from the direction control module and the brightness control module respectively; and generating a corresponding direction control instruction in response to the operation instruction, and Generating a corresponding brightness control instruction in response to the brightness operation instruction;

[0065] The light driving module is coupled to the main control module and the wiring socket 82. After receiving the brightness control command, the light driving module outputs a corresponding driving current to the flash 3 through the wiring socket 82 to control the brightness of the flash 3; At the lowest level, the flash 3 is turned off.

The motor drive module is coupled to the main control module and the wiring socket 82. After receiving the direction control command, the motor drive module outputs a pulse signal to the first motor 5 and the second motor 6 through the connection socket 82, respectively. For example, when the user presses the up and down adjustment direction buttons, the second motor 6 is controlled to rotate forward or reverse; if the user presses the left and right adjusted direction buttons, the first motor 5 is controlled to rotate forward or reverse. turn.

It is worth noting that the initial state of each flash unit is: toward the middle direction of the camera 9, and the specific orientation can be adjusted according to the position of the different cameras 9. For example, it can be configured on the interface of the mobile terminal. The process is as follows: smash the camera 9 and the flash 3, click the configuration button in the interface, and then adjust the illumination direction of the flash 3 according to the above method, and observe the uniformity of the exposure from the display interface. When the requirements are met, click the OK button to complete the configuration. When finished, each time the flash 3 is activated, its default orientation is in the middle of the camera 9.

Example 3:

[0069] A flash control method is implemented based on the mobile terminal in Embodiment 2, referring to FIG. 5, which includes the following steps:

[0070] Sl, the direction control module generates a direction operation instruction based on an operation of the user;

[0071] the brightness control module generates a brightness operation instruction based on a user's operation;

[0072] S2, the main control module receives the direction operation instruction and the brightness operation instruction from the direction control module and the brightness control module, respectively, and generates corresponding direction control instructions and brightness control instructions accordingly;

[0073] S3, the light drive module receives a brightness control command from the main control module, and accordingly outputs a corresponding drive current to the flash 3; [0074] The direction driving module receives the direction control command from the main control module, and accordingly outputs a corresponding pulse signal to the first motor 5 and the second motor 6.

[0075] In addition, it is further included that the illumination direction of the calibration flash is automatically adapted according to the direction in which the camera is aligned, so as to achieve a better exposure effect.

Claims

Claim

[Claim 1] A flash lamp assembly, comprising: a flash lamp (3), a carriage assembly (2), and a drive assembly; the carriage assembly (2) includes an annular bracket (21) and a spherical base ( 22); the flash lamp (3) is mounted on a spherical base (22); the spherical base (22) is located inside the annular bracket (21), and both sides pass through the first rotating shaft and the annular bracket (21) ) rotating the connection;

The drive assembly includes a first motor (5), a second motor (6), and a slide table (7), the first motor (5) being perpendicular to the orientation of the second motor (6); the ring bracket (21) Connected to the output shaft of the second motor (6) through the second rotating shaft (211); the first motor (5) is slip-disposed on the sliding table (7), the length direction of the sliding table (7) and the first motor The orientation of (5) is the same; the first shaft passes through the annular bracket (21) and is connected to the output shaft of the first motor (5) via a universal joint (4).

[Claim 2] The flash unit according to claim 1, further comprising a housing (1), the bracket assembly (2) and the drive assembly are disposed in the housing (1); a top surface of the casing (1) is provided with a circular opening (11) for partially extending the spherical base (22); a wiring plug (13) is disposed on the bottom wall of the casing (1), The wiring plug (13) is electrically connected to the first motor (5), the second motor (6), and the flash lamp (3).

[Claim 3] The flash unit according to claim 1, wherein the wire of the flash (3) passes through the spherical base (22) and protrudes from the other side of the spherical base (22).

[Claim 4] A mobile terminal includes a casing (8), a camera (9), and a camera control module, wherein at least two sides of the casing (8) are mounted with any one of claims 2-3 The flash unit;

The rear surface of the outer casing (8) is provided with a casing (81) adapted to the casing of the flash unit; the wall of the mounting groove (81) is mounted with the connection plug (13) Wiring socket (82);

The mobile terminal further includes:

a direction control module, configured to generate a corresponding direction operation instruction based on a user operation; a brightness control module, configured to generate a corresponding brightness operation instruction based on a user operation; the main control module is coupled to the direction control module and the brightness control module, The master control module generates a corresponding direction control command in response to the operation instruction, and in response to the brightness operation Generating an instruction to generate a corresponding brightness control instruction;

The light driving module is coupled to the main control module and the wiring socket (82), and the light driving module controls the brightness of the flash (3) in response to the brightness control instruction;

And a motor drive module coupled to the main control module and the wiring socket (82), wherein the motor drive module controls the first motor (5) and the second motor (6) to rotate in response to the direction control command.

[Claim 5] The mobile terminal according to claim 4, wherein the bottom wall of the casing (1) is provided with a circular groove (12), and the wiring plug (13) is located in a circle Inside the recess (12); the socket is arranged in a cylindrical shape that cooperates with the circular recess (12).

[Claim 6] The mobile terminal according to claim 4, wherein the flash unit is mounted at an upper middle portion or a lower end position of the rear surface of the mobile terminal.

[Claim 7] The mobile terminal according to claim 4, wherein the mobile terminal is a mobile phone or a tablet.

[Claim 8] The mobile terminal according to claim 4, wherein the original default illumination direction position of the flash unit is a position in the middle direction of the camera.

[Claim 9] A flash control method based on the mobile terminal of claim 4, wherein

, including the following steps:

S1. The direction control module generates a direction operation instruction based on a user operation;

The brightness control module generates a brightness operation instruction based on a user's operation;

52. The main control module receives the direction operation instruction and the brightness operation instruction from the direction control module and the brightness control module respectively, and generates corresponding direction control instructions and brightness control instructions accordingly.

53. The light driving module receives the brightness control command from the main control module, and accordingly outputs the corresponding driving current to the flash lamp (3);

The direction driving module receives the direction control command from the master module, and accordingly outputs a corresponding pulse signal to the first motor (5) and the second motor (6).

[Claim 10] The flash control method according to claim 9, further comprising: automatically adapting the illumination direction of the corrected flash according to the direction in which the camera is pressed.