Method and system for controlling high-speed synchronous flash of flash lamp

Abstract

The invention provides a flash lamp high-speed synchronous flashing control method and a flash lamp high-speed synchronous flashing control system, which are applied to mobile terminals such as a camera and the like. According to the invention, the plurality of capacitors of the flash lamp can be periodically discharged in sequence in the first work period, so that the frequency of voltage received by the flash lamp tube is doubled, the flash frequency of the flash lamp is effectively improved under the condition that the hardware performance of the capacitors is not improved, and the high-speed synchronous flash effect of the flash lamp is achieved.

Description

[0001] This application claims the priority of the Chinese patent application filed with the China Patent Office on February 2, 2024, with application number 202410152924.7 and application name “Control method and control system for high-speed synchronous flash of flash lamp”, the entire contents of which are incorporated by reference in this application. Technical Field

[0002] The present invention relates to the technical field of photographic equipment, and in particular to a control method and a control system for high-speed synchronous flashing of a flash lamp. Background Art

[0003] With the development of camera technology, high-speed photography has become an important research method in many fields such as scientific experiments, sports competitions, military tests, etc. Through high-speed photography, people can capture some instant details and dynamics that are usually invisible to the naked eye, and reveal the subtle changes in the movement of things.

[0004] At present, as the shutter speed is getting faster and faster, the requirements for the flash frequency of high-speed synchronous flash are also getting higher and higher. If the flash frequency cannot keep up with the shutter speed, light and dark stripes will appear in the generated photos. The existing high-speed synchronous flash control method drives the lamp to flash by periodically discharging the capacitor in a single control circuit. However, as the flash frequency gradually increases, the hardware performance of the current capacitor has gradually failed to meet the higher frequency flash requirements. The high-speed and frequent discharge of the capacitor will cause damage to the component itself, thereby affecting the normal use of the user. Summary of the invention

[0005] The purpose of the present invention is to solve the technical problem that in the prior art, the control method of high-speed synchronous flash is to drive the lamp to flash by periodically discharging the capacitor in a single control circuit. However, as the flash frequency gradually increases, the hardware performance of the current capacitor has gradually failed to meet the requirements of higher frequency flash. The frequent discharge of the capacitor at high speed will cause damage to the component itself, thereby affecting the normal use of the user.

[0006] In order to solve the above technical problems, the present invention provides a method for controlling high-speed synchronous flash of a flash lamp, comprising the following steps:

[0007] The flash light detects that the camera sends a trigger instruction, and generates a driving instruction according to the trigger instruction;

[0008] The capacitor of the flashlight includes a first working cycle in a discharging state and a second working cycle in a charging state. The capacitor can enter the first working cycle and the second working cycle according to the driving instruction, and alternately enter a discharging period and a non-discharging period in the first working cycle. The capacitor can discharge during the discharging period and output a working voltage, and the discharge periods of each capacitor do not completely overlap; and more than two capacitors in the flashlight can enter the discharging period and the non-discharging period in sequence when entering the first working cycle according to the driving instruction and perform periodic discharge;

[0009] The flash tube of the flash lamp emits light under the driving of the working voltage output by more than two capacitors.

[0010] In some embodiments of the present application, after the flash tube of the flash lamp outputs the working voltage to emit light, it is determined whether a predetermined condition is met. When the predetermined condition is met, the capacitor enters the second working cycle and is in a charging state.

[0011] In some embodiments of the present application, before the step of periodically discharging multiple capacitors of the flash lamp in sequence according to the driving instruction, it also includes: the number of flash tubes of the flash lamp is more than one, and the capacitor outputs a starting voltage to all the flash tubes according to the driving instruction, so that all the flash tubes enter a starting state.

[0012] In some embodiments of the present application, each capacitor of the flash lamp can alternately enter the first working cycle and the second working cycle according to the trigger instruction; the first working cycles of multiple capacitors overlap, and the second working cycles of multiple capacitors overlap.

[0013] In some embodiments of the present application, the plurality of capacitors can enter a discharge period and a non-discharge period in sequence according to the driving instruction when entering the first working cycle and perform periodic discharge, and the discharge period of the next capacitor is located in the non-discharge period of the previous capacitor.

[0014] In some embodiments of the present application, in the step of the flash detecting the camera sending a trigger instruction, it also includes: the flash detecting a high-speed shutter instruction or a low-speed shutter instruction.

[0015] In some embodiments of the present application, in the step of periodically discharging multiple capacitors of the flash in sequence according to the driving instruction, it also includes: multiple capacitors periodically discharging in sequence according to the high-speed shutter instruction and the driving instruction; or, one of the capacitors of the flash outputs an operating voltage to the flash tube according to the low-speed shutter instruction and the driving instruction.

[0016] The present invention also provides a control system for high-speed synchronous flashing of a flash lamp, comprising:

[0017] A processor, configured to be electrically connected to the camera to receive a trigger instruction sent by the camera and generate a driving instruction according to the trigger instruction;

[0018] A controller, provided with a plurality of controllers, each of which is electrically connected to the processor and implements periodic conduction control according to the drive instruction;

[0019] A capacitor is provided, each of which is electrically connected to a controller, and according to the periodic conduction control of the controller, the multiple capacitors are periodically discharged in sequence when entering a first working cycle; each of the capacitors includes a first working cycle in a discharging state and a second working cycle in a charging state, the first working cycle of the capacitor includes a discharging period and a non-discharging period, the discharging periods of the capacitors do not completely overlap, and the capacitors are discharged during the discharging period to output a corresponding working voltage;

[0020] The flash tube is electrically connected to the capacitor through the controller to emit light according to the working voltage output by the capacitor.

[0021] In some embodiments of the present application, the capacitor outputs a starting voltage to the flash tube prior to the working voltage according to the control of the controller, so that the flash tube enters a starting state.

[0022] In some embodiments of the present application, the plurality of capacitors can alternately enter the first working cycle and the second working cycle according to the conduction control of the controller to which they are electrically connected; the first working cycles of the plurality of capacitors overlap, and the second working cycles of the plurality of capacitors overlap.

[0023] In some embodiments of the present application, the plurality of capacitors are electrically connected to a flash tube to periodically output operating voltage to the flash tube in sequence, and the discharge period of the next capacitor is in the non-discharge period of the previous capacitor.

[0024] In some embodiments of the present application, there are multiple flash tubes, and multiple capacitors are electrically connected to the multiple flash tubes in a one-to-one correspondence; each capacitor can periodically output an operating voltage to the corresponding electrically connected flash, so that the multiple flash tubes emit light alternately, and the light-emitting time periods of the multiple flash tubes overlap.

[0025] In some embodiments of the present application, the control system further includes a shutter selector, the shutter selector is electrically connected to the camera and the processor, and the shutter selector outputs a high-speed shutter instruction to the plurality of capacitors or selectively outputs a low-speed shutter instruction to one of the capacitors through the processor; the plurality of capacitors are periodically discharged in sequence according to the high-speed shutter instruction and the driving instruction, thereby outputting a working voltage; one of the capacitors outputs a working voltage to the flash tube according to the low-speed shutter instruction and the driving instruction, so that the flash tube emits light;

[0026] There is one or more flash tubes. When there is one flash tube, the multiple capacitors are electrically connected to the one flash tube to periodically output a working voltage to the flash tube in sequence according to the high-speed shutter instruction and the driving instruction; when there are multiple flash tubes, the multiple capacitors are electrically connected to the multiple flash tubes in a one-to-one correspondence, and each capacitor can periodically output a working voltage to the corresponding electrically connected flash tube according to the high-speed shutter instruction and the driving instruction, so that the multiple flash tubes emit light alternately.

[0027] In some embodiments of the present application, the controller can output control signals corresponding to different capacitors to control the corresponding capacitors to enter the second working cycle and be in a charging state.

[0028] In some embodiments of the present application, the control system also includes a charging circuit electrically connected to the controller, and the charging circuit is electrically connected to each of the capacitors; the controller outputs a control signal to the charging circuit corresponding to different capacitors to make the charging circuit conductive with the corresponding capacitors so that the capacitors enter the second working cycle and are in a charging state.

[0029] In some embodiments of the present application, two capacitors are provided, namely a first capacitor and a second capacitor; the first capacitor and the second capacitor are both electrically connected to the flash tube, a first working cycle of the first capacitor and a first working cycle of the second capacitor both include a discharge period and a non-discharge period, and the discharge period of the second capacitor partially overlaps or completely overlaps with the non-discharge period of the first capacitor.

[0030] In some embodiments of the present application, the first capacitor includes multiple discharge periods and multiple non-discharge periods, and the second capacitor includes multiple discharge periods and multiple non-discharge periods; part of the discharge period of the second capacitor overlaps with part of the discharge period of the first capacitor.

[0031] In some embodiments of the present application, the discharge period of the second capacitor is the midpoint of the non-discharge period of the first capacitor, and the discharge period of the first capacitor is the midpoint of the non-discharge period of the second capacitor.

[0032] It can be seen from the above technical scheme that the beneficial effects of the present invention are: the control method of the high-speed synchronous flash of the flash lamp of the present invention and the control system of the high-speed synchronous flash of the flash lamp of the present invention are applied to mobile terminals such as cameras, which can realize that multiple capacitors of the flash lamp can be periodically discharged in sequence in the first working cycle, so that the voltage frequency received by the flash tube is doubled, and then without improving the hardware performance of the capacitor, the flash frequency of the flash lamp is effectively improved, thereby obtaining the effect of high-speed synchronous flash of the flash lamp. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 The present invention is a flow chart of a method for controlling high-speed synchronous flashing of a flash lamp.

[0034] Figure 2 yes Figure 1 The control method example shown is a schematic diagram of the working waveform after two capacitors realize the merging of two output working voltages.

[0035] Figure 3 It is a structural schematic diagram of Embodiment 1 of a control system for high-speed synchronous flashing of a flash lamp of the present invention.

[0036] Figure 4 yes Figure 3 The schematic diagram of the working waveform after the two output working voltages in the control system are combined is shown.

[0037] Figure 5 yes Figure 3 The figure shows a schematic diagram of the working waveforms after merging multiple output working voltages in an example of a control system.

[0038] Figure 6 yes Figure 3 Schematic diagram of the working waveforms of the two output starting voltages in the control system shown.

[0039] Figure 7 It is a structural schematic diagram of Embodiment 2 of a control system for high-speed synchronous flashing of a flash lamp of the present invention.

[0040] Figure 8 yes Figure 7 Schematic diagram of the working waveforms of the two output starting voltages in the control system shown.

[0041] Fig. 9 It is a structural schematic diagram of Embodiment 3 of the control system for high-speed synchronous flashing of a flash lamp of the present invention.

[0042] The reference numerals are as follows: 10, processor; 20, capacitor; 21, first capacitor; 22, second capacitor; 30, flash tube; 31, first flash tube; 32, second flash tube; 40, controller; 50, shutter selector; 60, camera. DETAILED DESCRIPTION

[0043] Typical embodiments that embody the features and advantages of the present invention will be described in detail in the following description. It should be understood that the present invention can have various changes in different embodiments without departing from the scope of the present invention, and the descriptions and illustrations therein are essentially used for illustration purposes rather than for limiting the present invention.

[0044] In the description of the present application, it should be understood that in the embodiments shown in the drawings, the indications of directions or positional relationships (such as up, down, left, right, front and back, etc.) are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the devices or elements referred to must have a specific orientation, be constructed and operate in a specific orientation. These descriptions are appropriate when these elements are in the positions shown in the drawings. If the descriptions of the positions of these elements change, the indications of these directions also change accordingly.

[0045] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0046] See also Figure 1 An embodiment of the present application provides a method for controlling high-speed synchronous flash of a flash lamp, which comprises the following steps:

[0047] Step S10, the flash light detects that the camera sends a trigger instruction, and generates a driving instruction according to the trigger instruction;

[0048] Step S20, the capacitor of the flashlight includes a first working cycle in a discharging state and a second working cycle in a charging state, the capacitor can enter the first working cycle and the second working cycle according to the driving instruction, and alternately enter the discharging period and the non-discharging period in the first working cycle, the capacitor can discharge and output the working voltage during the discharging period, and the discharge periods of each capacitor do not completely overlap; and more than two capacitors in the flashlight can enter the discharging period and the non-discharging period in sequence when entering the first working cycle according to the driving instruction and perform periodic discharge;

[0049] In step S30, the flash tube of the flash lamp is driven by the working voltage output by more than two capacitors to emit light.

[0050] The control method of this embodiment is applied to mobile terminals such as cameras, and can enable multiple capacitors of the flash to be periodically discharged in sequence during the first working cycle, so as to double the voltage frequency received by the flash tube, thereby effectively increasing the flash frequency of the flash without improving the hardware performance of the capacitor, thereby achieving the effect of high-speed synchronous flash of the flash.

[0051] In this embodiment, before performing step S10, multiple capacitors of the flash lamp are charged first. Specifically, the multiple capacitors can be charged separately by a boost charging circuit.

[0052] After the capacitor is fully charged, step S10 is performed, where the flash detects that the camera sends a trigger instruction, and generates a driving instruction according to the trigger instruction.

[0053] After the flashlight generates a driving instruction, step S20 is performed, and multiple capacitors of the flashlight are discharged periodically in sequence according to the driving instruction. Each capacitor includes a first working cycle in a discharging state and a second working cycle in a charging state. The capacitor is in a discharging state in the first working cycle and can output current to the flashlight tube to make it emit light. The capacitor is in a charging state in the second working cycle and can receive the inflow of external current to charge and store energy.

[0054] The first working cycle of each capacitor includes a discharge period and a non-discharge period. The capacitor can discharge during the discharge period and output a corresponding working voltage. Each capacitor can enter the discharge period multiple times in the first working cycle. Through multiple discharges of the capacitor in the first working cycle, the flash lamp can achieve a complete flash. A complete flash is generally composed of multiple fast strobes. Since the interval between strobes is short and cannot be distinguished by the naked eye, a seemingly continuous flash process can be achieved through multiple fast strobes.

[0055] The specific process of realizing stroboscopic light is as follows: the capacitor can alternately enter the discharge period and the non-discharge period in the first working cycle. During the discharge period, the capacitor can generate enough current to pass through the flash tube to make it emit light. When the discharge time of the capacitor reaches a predetermined value, the capacitor enters the non-discharge period; and when the non-discharge time of the capacitor reaches a predetermined value, the capacitor re-enters the discharge period.

[0056] In this way, when the capacitor alternately enters the discharge period and the non-discharge period, the flash tube will flash from bright to dark, thereby achieving rapid stroboscopic effect.

[0057] In the present application, when the fast strobe reaches a predetermined condition, the capacitor stops discharging and enters the second working cycle for charging. Specifically, after more than two capacitors output working voltages to emit light, the flash tube of the flash lamp determines whether the predetermined condition is met; when the predetermined condition is met, the capacitor enters the second working cycle and is in a charging state.

[0058] The predetermined conditions may include: reaching a predetermined total discharge time, reaching a predetermined number of total flash times, the charge of the capacitor dropping to a predetermined value, the voltage across the capacitor dropping below the cut-off voltage of the flash, and the like.

[0059] Each capacitor in the flashlight can enter the first working cycle and the second working cycle according to the driving instruction, and alternately enter the discharge period and the non-discharge period in the first working cycle. Two or more capacitors in the flashlight can enter the discharge period and the non-discharge period in sequence when entering the first working cycle according to the driving instruction, so as to perform periodic discharge.

[0060] In step S20, the flashlight may include two capacitors or more than two capacitors. When the flashlight includes two capacitors, the two capacitors are respectively a first capacitor and a second capacitor. The first capacitor and the second capacitor can be periodically discharged in sequence according to the driving instruction, that is, the first capacitor and the second capacitor can enter a discharge period and a non-discharge period in sequence when entering the first working cycle according to the driving instruction.

[0061] like Figure 2 As shown, in this embodiment, the first capacitor includes a first working cycle in a discharging state and a second working cycle in a charging state, and the second capacitor includes a first working cycle in a discharging state and a second working cycle in a charging state. The first working cycle of the first capacitor and the first working cycle of the second capacitor both include a discharging period and a non-discharging period.

[0062] In some examples, the first capacitor receives a trigger instruction and can alternately enter a first working cycle and a second working cycle, and the second capacitor receives a trigger instruction and can alternately enter the first working cycle and the second working cycle. In addition, the first working cycle of the first capacitor coincides with the first working cycle of the second capacitor, and the second working cycle of the first capacitor coincides with the second working cycle of the second capacitor.

[0063] In this example, when the first capacitor and the second capacitor receive the trigger instruction and enter the first working cycle, the discharge period of the second capacitor partially overlaps or completely overlaps with the non-discharge period of the first capacitor. This arrangement enables the first capacitor and the second capacitor to enter the discharge period and the non-discharge period in sequence in the first working cycle and perform periodic discharge, thereby alternately outputting the working voltage to the flash tube and increasing the flash frequency of the flash.

[0064] In other examples of this embodiment, the first operating cycle of the first capacitor may include multiple discharge periods and multiple non-discharge periods, the first operating cycle of the second capacitor may include multiple discharge periods and multiple non-discharge periods, and a partial discharge period of the second capacitor overlaps with a partial discharge period of the first capacitor.

[0065] In addition, the discharge period of the second capacitor of this embodiment can be set to the midpoint of the non-discharge period of the first capacitor, and the discharge period of the first capacitor can be set to the midpoint of the non-discharge period of the second capacitor. This setting can make the waveform of the superposition of the working voltage output by the first capacitor and the second capacitor more uniform, so that the brightness of the flashlight is also more uniform.

[0066] When the flash lamp includes multiple capacitors, in step S20, the multiple capacitors are periodically discharged in sequence according to the driving instruction, and the waveforms of the working voltages output by the multiple capacitors complement each other.

[0067] Specifically, in each first working cycle, multiple capacitors form multiple working voltage outputs during the discharge period, that is, when the discharge period of the first channel ends, the second channel will immediately enter the discharge period, until the discharge period of the last channel ends, and the first channel enters the discharge period again, so that there is always an input of working voltage in the flash tube, thereby ensuring that the voltage frequency received by the flash tube is effectively doubled, increasing the flash frequency of the flash, and thus achieving the effect of high-speed synchronous flash of the flash.

[0068] In step S30, the flash tube of the flash lamp emits light according to the working voltage. The flash lamp may be provided with only one flash tube, or may be provided with multiple flash tubes corresponding to multiple capacitors.

[0069] When the flashlight is provided with a flash tube, multiple capacitors are electrically connected to a flash tube to periodically output working voltage to the flash tube in sequence. The discharge period of the next capacitor is located in the non-discharge period of the previous capacitor to ensure that the voltage frequency of the flash tube is doubled, thereby increasing the flash frequency of the flashlight.

[0070] When the flash lamp is provided with a plurality of flash tubes, the plurality of capacitors are electrically connected to the plurality of flash tubes in a one-to-one correspondence; each capacitor can periodically output an operating voltage to the corresponding electrically connected flash lamp, so that the plurality of flash tubes emit light alternately.

[0071] More than two flash tubes are provided, and periodic voltages are input to the respectively connected flash tubes in turn through more than two capacitors, so that the flash tubes can flash in turn, thereby making the flash output frequency of the overall flash lamp increased by multiples, thereby effectively increasing the flash frequency of the flash lamp without improving the hardware performance of the capacitor, and also avoiding the flash tube from being damaged due to high-frequency operation, effectively protecting the flash tube while meeting the demand for high-speed synchronous flash with increasing frequency.

[0072] In this embodiment, after completing step S10 and before performing step S20, the control method further includes: the capacitor outputs a starting voltage to the flash tube according to the driving instruction, so that the flash tube enters a starting state.

[0073] Specifically, when there is one flash tube, a starting voltage can be output to the flash tube through any capacitor. When there are multiple flash tubes, each capacitor outputs a starting voltage to the corresponding connected flash tube according to the driving instruction to make the corresponding flash tube enter the starting state.

[0074] In addition, in step S10 of this embodiment, it may further include: the flash detects a high-speed shutter command or a low-speed shutter command. In step S20, it may further include: a plurality of capacitors discharge periodically in sequence according to the high-speed shutter command and the driving command; or one of the capacitors of the flash outputs an operating voltage to the flash according to the low-speed shutter command and the driving command.

[0075] Through the high-speed shutter command and the low-speed shutter command, the driving mode of the flash can be adjusted, and high-speed flash and low-speed flash can be selected, thereby expanding the application range of the product.

[0076] In addition to the above-mentioned control method for high-speed synchronous flash of a flash lamp, the present application also provides a control system for high-speed synchronous flash of a flash lamp, which includes a processor, a capacitor and a flash lamp tube.

[0077] Specifically, the processor is used to be electrically connected to the camera to receive a trigger instruction sent by the camera and generate a driving instruction according to the trigger instruction. There are multiple controllers, each of which is electrically connected to the processor and implements periodic conduction control according to the driving instruction. There are multiple capacitors, each of which is electrically connected to a controller, and according to the periodic conduction control of the controller, multiple capacitors are periodically discharged in sequence; each capacitor includes a first working cycle in a discharged state and a second working cycle in a charged state, and the first working cycle of the capacitor includes a discharge period and a non-discharge period, and the discharge periods of each capacitor do not completely overlap, and the capacitor discharges during the discharge period and outputs a corresponding working voltage. The flash tube is electrically connected to the capacitor through the controller to emit light according to the working voltage output by the capacitor.

[0078] Each capacitor includes a first working cycle in a discharging state and a second working cycle in a charging state. In the first working cycle, the capacitor is in a discharging state and can output current to the flash tube to make it emit light. In the second working cycle, the capacitor is in a charging state and can receive an inflow of external current to charge and store energy. Multiple capacitors can alternately enter a discharging period and a non-discharging period in the first working cycle according to the conduction control of the controller to which they are electrically connected.

[0079] During the discharge period, the capacitor can generate enough current to pass through the flash tube to make it emit light. As the capacitor discharges, its voltage gradually decreases and enters the non-discharge period. At this time, the current passing through the flash also gradually decreases. When the voltage across the capacitor drops below the cut-off voltage of the flash, the flash will no longer emit light.

[0080] In this way, when the capacitor alternately enters the discharge period and the non-discharge period, the flash tube will flash from bright to dark, thereby achieving flash.

[0081] In addition, the plurality of capacitors can alternately enter the first working cycle and the second working cycle according to the conduction control of the controller to which they are electrically connected. The first working cycles of the plurality of capacitors overlap, and the second working cycles of the plurality of capacitors overlap. The plurality of capacitors can sequentially enter the discharge period and the non-discharge period in the first working cycle and perform periodic discharge, thereby alternately outputting the working voltage to the flash tube and increasing the flash frequency of the flash.

[0082] In some embodiments of the present application, the controller can output control signals corresponding to different capacitors to control the corresponding capacitors to enter a second working cycle and be in a charging state.

[0083] Among them, the control system may include a charging circuit electrically connected to the controller, and the charging circuit is electrically connected to each capacitor; the controller outputs a control signal to the charging circuit corresponding to different capacitors, so that the charging circuit is connected to the corresponding capacitor and the capacitor enters the second working cycle and is in a charging state.

[0084] The control system is described below through different embodiments.

[0085] Example 1 of control system for high-speed synchronous flash of flash lamp

[0086] See also Figure 3In this embodiment, the processor 10 is used to be electrically connected to the camera 60 to receive a trigger instruction sent by the camera 60, and generate a driving instruction according to the trigger instruction. There are multiple controllers 40, each of which is electrically connected to the processor 10, and implements periodic conduction control according to the driving instruction. There are multiple capacitors 20, each of which is electrically connected to a controller 40, and according to the periodic conduction control of the controller 40, multiple capacitors 20 are periodically discharged in sequence. The first working cycle of each capacitor 20 includes a discharge period and a non-discharge period, and the capacitor 20 discharges during the discharge period and outputs a corresponding working voltage. The flash tube 30 is electrically connected to the capacitor 20 through the controller 40 to emit light according to the working voltage output by the capacitor 20.

[0087] In this embodiment, one flash tube 30 is provided, and a plurality of capacitors 20 are electrically connected to the flash tube 30 to sequentially and periodically output working voltages to the flash tube 30 . The waveforms of the working voltages output by the plurality of capacitors 20 are complementary.

[0088] In this embodiment, the control system further includes a plurality of controllers 40, and each capacitor 20 is electrically connected to the processor 10 via a controller 40. When the processor 10 sends an on signal to the controller 40, the voltage of the capacitor 20 can be directly output to the flash tube 30 to form a flash. When the processor 10 sends an off signal to the controller 40, the capacitor 20 is disconnected from the flash tube 30, and the flash tube 30 does not emit light.

[0089] In this embodiment, two capacitors 20 are provided, namely a first capacitor 21 and a second capacitor 22. The first capacitor 21 and the second capacitor 22 are both electrically connected to the flash tube 30. The first working cycle of the first capacitor 21 and the first working cycle of the second capacitor 22 both include a discharge period and a non-discharge period, and the discharge period of the second capacitor 22 partially overlaps or completely overlaps with the non-discharge period of the first capacitor 21.

[0090] See also Figure 4 It can be seen from the working waveform after the two output working voltages of the first capacitor 21 and the second capacitor 22 are combined that the first capacitor 21 is the first output and the second capacitor 22 is the second output. The first capacitor 21 and the second capacitor 22 of this embodiment can alternately output the working voltage to the flash tube 30, increase the flash frequency of the flash, and achieve high-speed flashing of the flash.

[0091] In other examples of this embodiment, the first working cycle of the first capacitor 21 may include multiple discharge periods and multiple non-discharge periods, the first working cycle of the second capacitor 22 may include multiple discharge periods and multiple non-discharge periods, and a partial discharge period of the second capacitor 22 overlaps with a partial discharge period of the first capacitor 21.

[0092] In addition, the discharge period of the second capacitor 22 of this embodiment can be set to the midpoint of the non-discharge period of the first capacitor 21, and the discharge period of the first capacitor 21 can be set to the midpoint of the non-discharge period of the second capacitor 22. This setting can make the waveform of the superposition of the working voltage output by the first capacitor 21 and the second capacitor 22 more uniform, so that the brightness of the flash light is also more uniform.

[0093] Furthermore, the capacitor 20 of this embodiment can be provided with more than two, that is, provided in a plurality, and the plurality of capacitors 20 are electrically connected to the flash tube 30. The plurality of capacitors 20 are periodically discharged in sequence according to the driving instruction, and the discharge period of the next capacitor 20 is located in the non-discharge period of the previous capacitor 20.

[0094] See also Figure 5 From the working waveform after the multiple working voltages of the multiple capacitors 20 are combined, it can be seen that, taking four capacitors 20 as an example, the first capacitor 21 is the first output, the second capacitor 22 is the second output, the third capacitor 20 is the third output, and the fourth capacitor 20 is the fourth output.

[0095] Specifically, the plurality of capacitors 20 form a plurality of working voltage outputs during the discharge period, that is, when the discharge period of the first channel ends, the second channel will immediately enter the discharge period, and until the discharge period of the last channel ends, the first channel will re-enter the discharge period, so that the flash tube 30 is always continuously input with working voltage, thereby ensuring that the voltage frequency received by the flash tube 30 is effectively doubled, thereby increasing the flash frequency of the flash, and obtaining the effect of high-speed synchronous flash of the flash.

[0096] In addition, any capacitor 20 of the present embodiment can output a starting voltage to the flash tube 30 before the working voltage according to the control of the controller 40, so that the flash tube 30 enters the starting state. Figure 6 It can be seen from the working waveform of the first capacitor 21 outputting the starting voltage that the first capacitor 21 is the main output and the second capacitor 22 is the branch output. That is, in this embodiment, the first capacitor 21 is selected to output the starting voltage to the flash tube 30 before the working voltage according to the driving instruction. In this embodiment, the control system may further include a charging circuit, and the charging circuit is used to charge the capacitor 20.

[0097] Figure 3 When the control system of the flash lamp high-speed synchronous flash is working, the first capacitor 21 and the second capacitor 22 are charged respectively through the charging circuit.

[0098] After the first capacitor 21 and the second capacitor 22 are fully charged, the processor 10 of the flashlight detects whether it has received a trigger instruction output by the shutter of the camera 60. After receiving the trigger instruction of the camera 60, the processor 10 sequentially drives the first capacitor 21 and the second capacitor 22 to periodically discharge to the flashlight tube 30, and the flashlight tube 30 emits light according to the working voltage output by the first capacitor 21 and the second capacitor 22.

[0099] In this embodiment, more than two capacitors 20 input periodic voltage to the flash tube 30 in turn, so that the voltage frequency actually received by the flash tube 30 is doubled, so as to effectively improve the flash frequency of the flash without improving the hardware performance of the capacitor 20, thereby meeting the current demand for high-speed synchronous flash with increasingly higher frequency.

[0100] Example 2 of control system for high-speed synchronous flash of flash lamp

[0101] See also Figure 7 In this embodiment, the processor 10 is used to be electrically connected to the camera 60 to receive a trigger instruction sent by the camera 60, and to generate a driving instruction according to the trigger instruction. A plurality of capacitors 20 are provided, and each capacitor 20 is electrically connected to a controller 40, and according to the periodic conduction control of the controller 40, the plurality of capacitors 20 are periodically discharged in sequence. When the processor 10 sends a conduction signal to the controller 40, the voltage of the capacitor 20 can be directly output to the flash tube 30 to form a flash. When the processor 10 sends a shutdown signal to the controller 40, the capacitor 20 is disconnected from the flash tube 30, and the flash tube 30 does not emit light.

[0102] The first working cycle of each capacitor 20 includes a discharge period and a non-discharge period. The capacitor 20 discharges during the discharge period and outputs a corresponding working voltage. The flash tube 30 is electrically connected to the capacitor 20 to emit light according to the working voltage output by the capacitor 20.

[0103] In this embodiment, there are multiple flash tubes 30, and multiple capacitors 20 are electrically connected to multiple flash tubes 30 in a one-to-one correspondence. Each capacitor 20 can periodically output an operating voltage to the corresponding electrically connected flash, so that the multiple flash tubes 30 emit light alternately, and the light-emitting periods of the multiple flash tubes 30 overlap.

[0104] In the present embodiment, the control system further includes a plurality of controllers 40, and each capacitor 20 is electrically connected to the processor 10 via a controller 40. In the present embodiment, two capacitors 20 are provided, and they are respectively a first capacitor 21 and a second capacitor 22. The first capacitor 21 and the second capacitor 22 are both electrically connected to a flash tube 30, and the two flash tubes 30 are respectively a first flash tube 31 and a second flash tube 32. The first working cycle of the first capacitor 21 and the first working cycle of the second capacitor 22 both include a discharge period and a non-discharge period, and the discharge period of the second capacitor 22 partially overlaps or completely overlaps with the non-discharge period of the first capacitor 21.

[0105] The discharge period of the second capacitor 22 partially overlaps or completely overlaps with the non-discharge period of the first capacitor 21. The first capacitor 21 can periodically output an operating voltage to the first flash tube 31, and the second capacitor 22 can periodically output an operating voltage to the second flash tube 32, so that the first flash tube 31 and the second flash tube 32 emit light alternately.

[0106] In other examples of this embodiment, the first working cycle of the first capacitor 21 may include multiple discharge periods and multiple non-discharge periods, the first working cycle of the second capacitor 22 may include multiple discharge periods and multiple non-discharge periods, and a partial discharge period of the second capacitor 22 overlaps with a partial discharge period of the first capacitor 21.

[0107] In addition, the discharge period of the second capacitor 22 of this embodiment can be set to the midpoint of the non-discharge period of the first capacitor 21, and the discharge period of the first capacitor 21 can be set to the midpoint of the non-discharge period of the second capacitor 22. This setting can make the waveform of the superposition of the working voltage output by the first capacitor 21 and the second capacitor 22 more uniform, so that the brightness of the flash light is also more uniform.

[0108] Furthermore, the capacitor 20 of the present embodiment can be provided with more than two, that is, provided in a plurality, and the plurality of capacitors 20 are all electrically connected to the flash tube 30. The plurality of capacitors 20 are periodically discharged in sequence according to the driving instruction, and the waveforms of the working voltages output by the plurality of capacitors 20 complement each other. That is, when the discharge period of the first path ends, the second path will immediately enter the discharge period, until the discharge period of the last path ends, and the first path enters the discharge period again.

[0109] In addition, each capacitor 20 of this embodiment can output a starting voltage to the corresponding connected flash tube 30 according to the control of the controller 40, so that the corresponding flash tube 30 enters the starting state. The input time of the starting voltage of each flash tube 30 may overlap or may not overlap. Figure 8As shown, from the working waveforms of the first capacitor 21 and the second capacitor 22 outputting the starting voltage, it can be known that the first capacitor 21 is the main output and the second capacitor 22 is the branch output. The first capacitor 21 outputs the starting voltage to the first flash tube 31 before the working voltage according to the driving instruction, and the second capacitor 22 outputs the starting voltage to the second flash tube 32 before the working voltage according to the driving instruction.

[0110] In this embodiment, the control system may further include a boost charging circuit, and the charging circuit is used to charge the capacitor 20 .

[0111] Figure 7 When the control system of the flash lamp high-speed synchronous flash is working, the first capacitor 21 and the second capacitor 22 are charged respectively through the charging circuit.

[0112] After the first capacitor 21 and the second capacitor 22 are fully charged, the processor 10 of the flashlight detects whether a trigger instruction outputted by the shutter in the camera 60 is received. After the processor 10 receives the trigger instruction from the camera 60, the first capacitor 21 can periodically output a working voltage to the first flashlight tube 31, and the second capacitor 22 can periodically output a working voltage to the second flashlight tube 32, so that the first flashlight tube 31 and the second flashlight tube 32 emit light alternately.

[0113] In this embodiment, the control system is provided with more than two flash tubes 30, and periodic voltage is input to the respectively connected flash tubes 30 in turn through more than two capacitors 20, so that the flash tubes 30 can flash in turn, thereby making the flash output frequency of the overall flash lamp increased by multiples, thereby making it possible to effectively increase the flash frequency of the flash lamp without improving the hardware performance of the capacitor 20, and also to avoid the flash tube 30 from being damaged due to high-frequency operation, and to effectively protect the flash tube 30 while meeting the current demand for high-speed synchronous flash with increasingly higher frequency.

[0114] Example 3 of control system for high-speed synchronous flash of flash lamp

[0115] See also Fig. 9 In this embodiment, the processor 10 is used to be electrically connected to the camera 60 to receive a trigger instruction sent by the camera 60, and to generate a driving instruction according to the trigger instruction. A plurality of capacitors 20 are provided, and each capacitor 20 is electrically connected to a controller 40, and according to the periodic conduction control of the controller 40, the plurality of capacitors 20 are periodically discharged in sequence. When the processor 10 sends a conduction signal to the controller 40, the voltage of the capacitor 20 can be directly output to the flash tube 30 to form a flash. When the processor 10 sends a shutdown signal to the controller 40, the capacitor 20 is disconnected from the flash tube 30, and the flash tube 30 does not emit light.

[0116] The first working cycle of each capacitor 20 includes a discharge period and a non-discharge period. The capacitor 20 discharges during the discharge period and outputs a corresponding working voltage. The flash tube 30 is electrically connected to the capacitor 20 to emit light according to the working voltage output by the capacitor 20.

[0117] The control system of this embodiment further includes a shutter selector 50 , which is electrically connected to the camera 60 and the processor 10 . The shutter selector 50 outputs a high-speed shutter command to the plurality of capacitors 20 through the processor 10 or selectively outputs a low-speed shutter command to one of the capacitors 20 .

[0118] Multiple capacitors 20 are periodically discharged in sequence according to the high-speed shutter command and the driving command, thereby outputting the working voltage to realize the high-speed flash of the flash. One of the capacitors 20 outputs the working voltage to the flash according to the low-speed shutter command and the driving command to make the flash tube 30 emit light, ensuring the flash flashes normally.

[0119] In the present embodiment, one flash tube 30 is provided, and each of the plurality of capacitors 20 is electrically connected to the flash tube 30 to periodically output a working voltage to the flash tube 30 in sequence according to a high-speed shutter instruction and a driving instruction.

[0120] In other examples of this embodiment, there may be multiple flash tubes 30, and multiple capacitors 20 are electrically connected to the multiple flash tubes 30 in a one-to-one correspondence. Each capacitor 20 can periodically output an operating voltage to the corresponding electrically connected flash tube 30 according to a high-speed shutter instruction and a driving instruction, so that the multiple flash tubes 30 emit light alternately.

[0121] In this embodiment, the control system further includes a plurality of controllers 40, and each capacitor 20 is electrically connected to the processor 10 via a controller 40. In this embodiment, two capacitors 20 are provided, namely a first capacitor 21 and a second capacitor 22.

[0122] In this embodiment, two capacitors 20 are provided, namely, a first capacitor 21 and a second capacitor 22. The first capacitor 21 and the second capacitor 22 are both electrically connected to a flash tube 30, and the two flash tubes 30 are respectively the first flash tube 31 and the second flash tube 32. The first working cycle of the first capacitor 21 and the first working cycle of the second capacitor 22 both include a discharge period and a non-discharge period, and the discharge period of the second capacitor 22 partially overlaps or completely overlaps with the non-discharge period of the first capacitor 21.

[0123] The first capacitor 21 can periodically output an operating voltage to the first flash tube 31 , and the second capacitor 22 can periodically output an operating voltage to the second flash tube 32 , so that the first flash tube 31 and the second flash tube 32 emit light alternately.

[0124] In other examples of this embodiment, the first capacitor 21 may include multiple discharge periods and multiple non-discharge periods, the second capacitor 22 may include multiple discharge periods and multiple non-discharge periods, and a partial discharge period of the second capacitor 22 overlaps with a partial discharge period of the first capacitor 21.

[0125] In addition, the discharge period of the second capacitor 22 of this embodiment can be set to the midpoint of the non-discharge period of the first capacitor 21, and the discharge period of the first capacitor 21 can be set to the midpoint of the non-discharge period of the second capacitor 22. This setting can make the waveform of the superposition of the working voltage output by the first capacitor 21 and the second capacitor 22 more uniform, so that the brightness of the flash light is also more uniform.

[0126] Furthermore, the capacitor 20 of the present embodiment can be provided with more than two, that is, provided in a plurality, and the plurality of capacitors 20 are all electrically connected to the flash tube 30. The plurality of capacitors 20 are periodically discharged in sequence according to the driving instruction, and the waveforms of the working voltages output by the plurality of capacitors 20 complement each other. That is, when the discharge period of the first path ends, the second path will immediately enter the discharge period, until the discharge period of the last path ends, and the first path enters the discharge period again.

[0127] In addition, each capacitor 20 of the present embodiment can output a starting voltage to the corresponding connected flash tube 30 according to the control of the controller 40, so that the corresponding flash tube 30 enters a starting state. The input time of the starting voltage of each flash tube 30 may overlap or may not overlap. In the present embodiment, the control system may further include a charging circuit, which is used to charge the capacitor 20.

[0128] In other examples of this embodiment, the flash tube 30 is provided with one, and the first capacitor 21 and the second capacitor 22 are both electrically connected to the flash tube 30. Multiple capacitors 20 are electrically connected to the flash tube 30 to periodically output the operating voltage to the flash tube 30 in sequence according to the high-speed shutter instruction and the driving instruction.

[0129] The first working cycle of the first capacitor 21 and the first working cycle of the second capacitor 22 both include a discharge period and a non-discharge period, and the discharge period of the second capacitor 22 partially overlaps or completely overlaps with the non-discharge period of the first capacitor 21. The first capacitor 21 and the second capacitor 22 of this embodiment can alternately output a working voltage to the flash tube 30, increase the flash frequency of the flash, and achieve high-speed flashing of the flash.

[0130] In other examples of this embodiment, the first capacitor 21 may include multiple discharge periods and multiple non-discharge periods, the second capacitor 22 may include multiple discharge periods and multiple non-discharge periods, and a partial discharge period of the second capacitor 22 overlaps with a partial discharge period of the first capacitor 21.

[0131] In addition, the discharge period of the second capacitor 22 of this embodiment can be set to the midpoint of the non-discharge period of the first capacitor 21, and the discharge period of the first capacitor 21 can be set to the midpoint of the non-discharge period of the second capacitor 22. This setting can make the waveform of the superposition of the working voltage output by the first capacitor 21 and the second capacitor 22 more uniform, so that the brightness of the flash light is also more uniform.

[0132] Furthermore, the capacitor 20 of this embodiment can be provided with more than two, that is, provided in multiple, and the multiple capacitors 20 are all electrically connected to the flash tube 30. The multiple capacitors 20 are periodically discharged in sequence according to the driving instruction, and the waveforms of the working voltages output by the multiple capacitors 20 complement each other.

[0133] Specifically, the plurality of capacitors 20 form a plurality of working voltage outputs during the discharge period, that is, when the discharge period of the first channel ends, the second channel will immediately enter the discharge period, and until the discharge period of the last channel ends, the first channel will re-enter the discharge period, so that the flash tube 30 is always continuously input with working voltage, thereby ensuring that the voltage frequency received by the flash tube 30 is effectively doubled, thereby increasing the flash frequency of the flash, and obtaining the effect of high-speed synchronous flash of the flash.

[0134] In addition, any capacitor 20 of this embodiment can output a starting voltage to the flash tube 30 under the control of the controller 40 , so that the flash tube 30 enters a starting state. In this embodiment, the control system can also include a charging circuit, which is used to charge the capacitor 20 .

[0135] Fig. 9 When the control system of the flash lamp high-speed synchronous flash is working, the first capacitor 21 and the second capacitor 22 are charged respectively through the charging circuit.

[0136] After the first capacitor 21 and the second capacitor 22 are fully charged, the processor 10 of the flash detects a high-speed shutter command or a low-speed shutter command. After the processor 10 receives the high-speed shutter command and the trigger command of the camera 60, the first capacitor 21 can periodically output the working voltage to the first flash tube 31, and the second capacitor 22 can periodically output the working voltage to the second flash tube 32, so that the first flash tube 31 and the second flash tube 32 emit light alternately. After the processor 10 receives the low-speed shutter command and the trigger command of the camera 60, the first capacitor 21 or the second capacitor 22 enters the first working cycle, that is, the first capacitor 21 outputs the working voltage to the first flash tube 31 according to the low-speed shutter command and the driving command, so that the first flash tube 31 emits light; or, the second capacitor 22 outputs the working voltage to the first flash tube 31 according to the low-speed shutter command and the driving command, so that the second flash tube 32 emits light.

[0137] Through the high-speed shutter command and the low-speed shutter command, the driving mode of the flash can be adjusted, and high-speed flash and low-speed flash can be selected, thereby expanding the application range of the product.

[0138] With regard to the technical solution of the present application, the control method for high-speed synchronous flash of the flash and the control system for high-speed synchronous flash of the flash are applied to mobile terminals such as cameras, which can enable multiple capacitors of the flash to be periodically discharged in sequence in a first working cycle, so that the voltage frequency received by the flash tube is doubled, and then the flash frequency of the flash can be effectively increased without improving the hardware performance of the capacitor, thereby obtaining the effect of high-speed synchronous flash of the flash.

[0139] Although the present invention has been described with reference to several typical embodiments, it should be understood that the terms used are illustrative and exemplary, rather than restrictive. Since the present invention can be embodied in a variety of forms without departing from the spirit or essence of the invention, it should be understood that the above embodiments are not limited to any of the foregoing details, but should be interpreted broadly within the spirit and scope defined by the appended claims, so all changes and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.

Claims

1. A method for controlling high-speed synchronous flash of a flash lamp, characterized in that: The steps include: The flash light detects that the camera sends a trigger instruction, and generates a driving instruction according to the trigger instruction; The capacitor of the flashlight includes a first working cycle in a discharging state and a second working cycle in a charging state. The capacitor can enter the first working cycle and the second working cycle according to the driving instruction, and alternately enter a discharging period and a non-discharging period in the first working cycle. The capacitor can discharge during the discharging period and output a working voltage, and the discharge periods of each capacitor do not completely overlap; and more than two capacitors in the flashlight can enter the discharging period and the non-discharging period in sequence when entering the first working cycle according to the driving instruction and perform periodic discharge; The flash tube of the flash lamp emits light under the driving of the working voltage output by more than two capacitors.

2. The method for controlling high-speed synchronous flash of a flash lamp according to claim 1, characterized in that: After the two or more capacitors output the working voltage to emit light, the flash tube of the flash lamp determines whether a predetermined condition is met; when the predetermined condition is met, the capacitor enters the second working cycle and is in a charging state.

3. The method for controlling high-speed synchronous flash of a flash lamp according to claim 1, characterized in that: Before the step of causing the multiple capacitors of the flashlight to discharge periodically in sequence according to the driving instruction, the method further includes: the number of the flashlight tubes is more than one, and the capacitor outputs a starting voltage to all the flash tubes according to the driving instruction, so that all the flash tubes enter a starting state.

4. The method for controlling high-speed synchronous flash of a flash lamp according to claim 1, characterized in that: Each capacitor of the flash lamp can alternately enter the first working cycle and the second working cycle according to the trigger instruction; the first working cycles of multiple capacitors overlap, and the second working cycles of multiple capacitors overlap.

5. The method for controlling high-speed synchronous flash of a flash lamp according to claim 1, characterized in that: The plurality of capacitors can enter a discharge period and a non-discharge period in sequence according to the driving instruction when entering the first working cycle and perform periodic discharge, and the discharge period of the next capacitor is located in the non-discharge period of the previous capacitor.

6. The method for controlling high-speed synchronous flash of a flash lamp according to claim 1, characterized in that: In the step of the flash detecting the camera sending a trigger instruction, it also includes: the flash detecting a high-speed shutter instruction or a low-speed shutter instruction.

7. The method for controlling high-speed synchronous flash of a flash lamp according to claim 6, characterized in that: In the step of periodically discharging multiple capacitors of the flash lamp in sequence according to the driving instruction, it also includes: multiple capacitors periodically discharging in sequence according to the high-speed shutter instruction and the driving instruction; or, one of the capacitors of the flash lamp outputs an operating voltage to the flash lamp tube according to the low-speed shutter instruction and the driving instruction.

8. A control system for high-speed synchronous flashing of a flash lamp, characterized in that: include: A processor, configured to be electrically connected to the camera to receive a trigger instruction sent by the camera and generate a driving instruction according to the trigger instruction; A controller, provided with a plurality of controllers, each of which is electrically connected to the processor and implements periodic conduction control according to the drive instruction; A capacitor is provided, each of which is electrically connected to a controller, and according to the periodic conduction control of the controller, the multiple capacitors are periodically discharged in sequence when entering a first working cycle; each of the capacitors includes a first working cycle in a discharging state and a second working cycle in a charging state, the first working cycle of the capacitor includes a discharging period and a non-discharging period, the discharging periods of the capacitors do not completely overlap, and the capacitors are discharged during the discharging period to output a corresponding working voltage; The flash tube is electrically connected to the capacitor through the controller to emit light according to the working voltage output by the capacitor.

9. The control system for high-speed synchronous flash of a flash lamp according to claim 8, characterized in that: The capacitor outputs a starting voltage to the flash tube prior to the working voltage according to the control of the controller, so that the flash tube enters a starting state.

10. The control system for high-speed synchronous flash of a flash lamp according to claim 8, characterized in that: The plurality of capacitors can alternately enter the first working cycle and the second working cycle according to the conduction control of the controller to which they are electrically connected; the first working cycles of the plurality of capacitors overlap, and the second working cycles of the plurality of capacitors overlap.

11. The control system for high-speed synchronous flash of a flash lamp according to claim 8, characterized in that: The plurality of capacitors are all electrically connected to a flash tube to periodically output a working voltage to the flash tube in sequence, and the discharge period of the next capacitor is located in the non-discharge period of the previous capacitor.

12. The control system for high-speed synchronous flash of a flash lamp according to claim 8, characterized in that: There are multiple flash tubes, and the multiple capacitors are electrically connected to the multiple flash tubes in a one-to-one correspondence; each capacitor can periodically output an operating voltage to the corresponding electrically connected flash, so that the multiple flash tubes emit light alternately, and the light-emitting time periods of the multiple flash tubes overlap.

13. The control system for high-speed synchronous flash of a flash lamp according to claim 8, characterized in that: The control system further comprises a shutter selector, the shutter selector being electrically connected to the camera and the processor, the shutter selector outputting a high-speed shutter instruction to the plurality of capacitors or selectively outputting a low-speed shutter instruction to one of the capacitors through the processor; the plurality of capacitors sequentially discharge periodically according to the high-speed shutter instruction and the driving instruction, thereby outputting a working voltage; one of the capacitors outputs a working voltage to the flash tube according to the low-speed shutter instruction and the driving instruction, so that the flash tube emits light; There is one or more flash tubes. When there is one flash tube, the multiple capacitors are electrically connected to the one flash tube to periodically output a working voltage to the flash tube in sequence according to the high-speed shutter instruction and the driving instruction; when there are multiple flash tubes, the multiple capacitors are electrically connected to the multiple flash tubes in a one-to-one correspondence, and each capacitor can periodically output a working voltage to the corresponding electrically connected flash tube according to the high-speed shutter instruction and the driving instruction, so that the multiple flash tubes emit light alternately.

14. The control system for high-speed synchronous flash of a flash lamp according to claim 8, characterized in that: The controller can output control signals corresponding to different capacitors to control the corresponding capacitors to enter the second working cycle and be in a charging state.

15. The control system for high-speed synchronous flash of a flash lamp according to claim 14, characterized in that: The control system also includes a charging circuit electrically connected to the controller, and the charging circuit is electrically connected to each of the capacitors; the controller outputs a control signal to the charging circuit corresponding to different capacitors, so that the charging circuit is turned on by the corresponding capacitor and the capacitor enters the second working cycle and is in a charging state.

16. The control system for high-speed synchronous flash of a flash lamp according to any one of claims 11 to 15, characterized in that: The capacitors are provided with two, namely a first capacitor and a second capacitor; the first capacitor and the second capacitor are both electrically connected to the flash tube, a first working cycle of the first capacitor and a first working cycle of the second capacitor both include a discharge period and a non-discharge period, and the discharge period of the second capacitor partially overlaps or completely overlaps with the non-discharge period of the first capacitor.

17. The control system for high-speed synchronous flash of a flash lamp according to claim 16, characterized in that: The first capacitor includes a plurality of the discharge periods and a plurality of the non-discharge periods, and the second capacitor includes a plurality of the discharge periods and a plurality of the non-discharge periods; part of the discharge period of the second capacitor overlaps with part of the discharge period of the first capacitor.

18. The control system for high-speed synchronous flash of a flash lamp according to claim 16, characterized in that: The discharge period of the second capacitor is the midpoint of the non-discharge period of the first capacitor, and the discharge period of the first capacitor is the midpoint of the non-discharge period of the second capacitor.

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