On-camera flash

Abstract

Provided in the present disclosure is an on-camera flash (100), comprising a main body (10), a lamp head (20), a controller (31), a Hall sensor (41), and a magnetic member (42). The main body (10) is provided with a mounting cavity (11), and the lamp head (20) is connected to the main body (10) and can rotate relative to the main body (10), such that the lamp head (20) switches between a first state and a second state. The lamp head (20) is provided with a light-emitting assembly (21) for emitting light. The controller (31) is mounted inside the mounting cavity (11) and is electrically connected to the light-emitting assembly (21) and an external device. The controller (31) can receive a trigger signal and a parameter signal. The Hall sensor (41) is mounted on the main body (10) and is located on the side of the main body (10) facing the lamp head (20); the magnetic member (42) is mounted on the lamp head and is arranged corresponding to the Hall sensor (41), such that the Hall sensor (41) can identify the rotation of the lamp head (20) relative to the main body (10) by means of sensing the magnetic member (42), thereby determining that the lamp head (20) is in the first state or the second state, and the Hall sensor (41) outputs a first signal or a second signal to the controller (31); and the controller (31) can display the first signal or the second signal by means of a display unit, thereby helping a user to perform identification.

Description

On-screen flash

[0001] This application claims priority to Chinese patent application No. CN202520560716.0, filed on March 26, 2025, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This disclosure relates to the field of photography and videography, and in particular to on-camera flashes. Background Technology

[0003] A camera flash is a photographic accessory that emits a strong beam of light for a very short time during shooting. It is primarily used for instant illumination in low-light conditions, and also for providing localized fill light to the subject in relatively well-lit situations. Meanwhile, a built-in flash is a standalone electronic flash unit that connects to the camera. It boasts higher power, more functions, and can be mounted on various camera models.

[0004] Due to varying lighting conditions in shooting environments and different user needs for fill light, on-camera flashes have different operating modes to meet diverse usage requirements. The flash head of these on-camera flashes can typically rotate to different angles; therefore, how the on-camera flash switches the corresponding emission mode when the flash head rotates to different angles has a significant impact on the overall usability and lighting effect.

[0005] Utility Model Content

[0006] The present disclosure provides an on-camera flash that can detect the rotation state of the flash head and control the flash head to emit light according to the rotation state of the flash head.

[0007] According to one aspect of the present disclosure, an on-camera flash is provided, connected to an external device. The on-camera flash includes: a main body having a mounting cavity; a flash head connected to the main body and rotatable relative to the main body, allowing the flash head to switch between a first state and a second state; a light-emitting component for emitting light is disposed on the side of the flash head opposite to the main body; a controller installed in the mounting cavity and electrically connected to the light-emitting component and the external device; the controller is capable of receiving trigger signals for controlling the light-emitting component to turn on or off, and capable of receiving and storing parameter signals for controlling the light-emitting component to emit light; and a Hall sensor installed on the main body and located at the... The main body faces the lamp head; the Hall sensor is electrically connected to the controller; a magnetic element is mounted on the lamp head and can rotate relative to the main body with the lamp head; the magnetic element is configured corresponding to the Hall sensor, enabling the Hall sensor to identify the lamp head switching between a first state and a second state; wherein, when the Hall sensor identifies the lamp head as being in the first state, the Hall sensor can output a first signal to the controller, and when the Hall sensor identifies the lamp head as being in the second state, the Hall sensor can output a second signal to the controller; the controller can display the first signal or the second signal through a display unit;

[0008] Furthermore, the controller can control the light-emitting component to turn on according to the parameter signal and the trigger signal, or the controller can control the light-emitting component to turn on according to the first signal or the second signal, as well as the parameter signal and the trigger signal, or the controller can control the light-emitting component to turn on through the first signal or the second signal and the trigger signal. Attached Figure Description

[0009] Figure 1 is a schematic diagram of an on-camera flash according to some embodiments of the present disclosure.

[0010] Figure 2 is a schematic cross-sectional view of the on-camera flash in Figure 1.

[0011] Figure 3 is another schematic diagram of the on-camera flash in Figure 1.

[0012] Figure 4 is a schematic cross-sectional view of the on-camera flash in Figure 3.

[0013] The reference numerals in the attached drawings are explained as follows: 100 - On-camera flash; 10 - Main body; 11 - Mounting cavity; 12 - Connector; 13 - First connecting part; 14 - Second connecting part; 15 - Rotating shaft; 20 - Lamp head; 21 - Light-emitting component; 22 - Lamp body; 23 - Lamp body PCB board; 24 - First lamp body lens; 25 - Second lamp body lens; 31 - Controller; 32 - Display; 41 - Hall sensor; 42 - Magnetic component; 50 - Fill light; 51 - Fill light PCB board; 52 - Fill light lens; 60 - Hot shoe module; 61 - Hot shoe main body; 62 - Hot shoe locking ring; 63 - Unlock handle; 64 - Unlock spring pin; 65 - Hot shoe contact pin; 70 - Auxiliary light; 72 - Charging capacitor; 73 - Transformer. Detailed Implementation

[0014] Typical embodiments embodying the features and advantages of this disclosure will be described in detail in the following description. It should be understood that this disclosure can have various variations in different embodiments without departing from the scope of this disclosure, and the descriptions and illustrations therein are for illustrative purposes only and not intended to limit this disclosure.

[0015] In the description of this disclosure, it should be understood that, in the embodiments shown in the accompanying drawings, indications of direction or positional relationships (such as up, down, left, right, front, and back, etc.) are for the convenience of describing this disclosure and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. These descriptions are appropriate when these elements are in the positions shown in the accompanying drawings. If the description of the positions of these elements changes, these directional indications also change accordingly.

[0016] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this disclosure, "a plurality of" means two or more, unless otherwise explicitly specified.

[0017] In related technologies, the rotation angle of the on-camera flash head is identified through wire connections or optical sensors. However, wire connections are prone to wear and tear due to the rotation of the flash head, while optical sensors are susceptible to distortion due to changes in light intensity, thus affecting the use of the on-camera flash. Therefore, this paper proposes an on-camera flash to solve the above problems.

[0018] The solution is further illustrated by the following examples:

[0019] Figure 1 is a schematic diagram of an on-camera flash according to some embodiments of the present disclosure.

[0020] Referring to Figure 1, the on-camera flash 100 of this embodiment can be connected to an external device for supplementary lighting, thereby improving the display effect of the captured image. The external device can be a camera or camcorder. In some embodiments, the on-camera flash 100 may include a main body 10 and a flash head 20. Figure 2 is a schematic cross-sectional view of the on-camera flash of Figure 1. Figure 3 is another schematic diagram of the on-camera flash of Figure 1.

[0021] In some embodiments, referring to Figures 2 and 3, a mounting cavity 11 may be provided inside the main body 10. The lamp holder 20 is connected to the main body 10.

[0022] In some embodiments, the lamp head 20 can rotate relative to the body 10, so that the lamp head 20 switches between a first state and a second state.

[0023] In some embodiments, referring to Figures 2 and 3, the lamp head 20 may be provided with a light-emitting component 21, which is installed on the side of the lamp head 20 away from the main body 10 for emitting light.

[0024] In some embodiments, referring to FIG2, the on-camera flash 100 may include a controller 31. The controller 31 is mounted in the mounting cavity 11 and electrically connected to the light-emitting component 21 and external devices.

[0025] The controller 31 is capable of receiving trigger signals. These trigger signals are used to control the on / off state of the light-emitting component 21. It should be noted that the trigger signal can be generated by the shutter button on the camera or camcorder; that is, when the shutter button is pressed, it triggers and transmits the trigger signal to the controller 31, thereby enabling the controller 31 to control the light-emitting component 21 to emit light or flash. Alternatively, the trigger signal can also be generated by a flash unit or control device connected to the on-camera flash 100, or by a flash button located on the on-camera flash 100.

[0026] In addition, the controller 31 can also receive and store parameter signals. The parameter signals are used to control the light emission of the light-emitting component 21, so that the light-emitting component 21 can emit light in different modes according to the parameter signals.

[0027] Figure 4 is a schematic cross-sectional view of the on-camera flash in Figure 3.

[0028] Referring to Figure 4, in some embodiments, the on-camera flash 100 may include a Hall sensor 41. The Hall sensor 41 is mounted on the body 10 and located on the side of the body 10 facing the flash head 20. The Hall sensor 41 is electrically connected to the controller 31, enabling the information detected by the Hall sensor 41 to be transmitted to the controller 31. In this embodiment, the Hall sensor 41 may be configured as a Hall switch.

[0029] Referring to Figure 4, in some embodiments, the on-camera flash 100 may include a magnetic element 42. The magnetic element 42 is mounted on the flash head 20 and is capable of rotating with the flash head 20 relative to the main body 10.

[0030] In some embodiments, the mounting position of the magnetic element 42 on the lamp head 20 can be offset from the rotation center of the lamp head 20 relative to the main body 10, so that when the magnetic element 42 rotates with the lamp head 20, the magnetic element 42 can move away from or towards the main body 10. The magnetic element 42 can be configured as a permanent magnet or electromagnet capable of continuously generating a magnetic field, allowing the Hall sensor 41 to sense the position of the magnetic element 42 through the magnetic field.

[0031] In this disclosure, the magnetic element 42 is configured to correspond to the Hall sensor 41, enabling the Hall sensor 41 to identify the switching of the lamp head 20 between a first state and a second state via the magnetic element 42. That is, when the lamp head 20 rotates relative to the main body 10, the magnetic element 42 rotates with the lamp head 20 and relative to the main body 10, causing the magnetic element 42 to move away from or towards the Hall sensor 41.

[0032] When the distance between Hall sensor 41 and magnetic element 42 is less than a preset value, Hall sensor 41 can identify that lamp head 20 is in a first state. When the distance between Hall sensor 41 and magnetic element 42 is greater than the preset value, Hall sensor 41 can identify that lamp head 20 is in a second state. Therefore, Hall sensor 41 can identify the switching of lamp head 20 between the first and second states.

[0033] It should be noted that this disclosure uses Hall sensor 41 and magnetic component 42 to identify the rotation angle of lamp head 20 relative to main body 10, which can avoid the wear and tear of wire connection identification and other methods, and can also avoid the problems of identification distortion caused by light sensor identification and other methods being easily affected by light intensity.

[0034] Furthermore, when Hall sensor 41 identifies that lamp head 20 is in the first state, Hall sensor 41 can output a first signal to controller 31, and when Hall sensor 41 identifies that lamp head 20 is in the second state, Hall sensor 41 can output a second signal to controller 31.

[0035] In this embodiment, the controller 31 can display the first signal or the second signal through the display unit, so that the user can intuitively identify the position status of the lamp head 20 and set the corresponding parameter signal according to the position status of the lamp head 20, so that the light-emitting component can emit light or flash as required.

[0036] It should be noted that the display unit can be a display screen or other structure on an external device, or it can be a display 32 installed on the main body 10.

[0037] In this embodiment, the controller 31 can control the light-emitting component 21 to turn on according to parameter signals and trigger signals. Specifically, the controller 31 can control the light-emitting component 21 to emit light according to preset parameter signals and trigger signals. That is, after the user manually sets the corresponding parameters and presses the shooting button, the light-emitting component 21 can emit light according to the relevant parameters.

[0038] Simultaneously, the controller 31 can also control the light-emitting component 21 to turn on based on the first or second signal, as well as the parameter signal and the trigger signal. Specifically, the controller 31 displays the status of the lamp head 20 to the user via the display 32 based on the first or second signal, and the user sets corresponding parameters based on the status of the lamp head 20, so that the controller 31 controls the light-emitting component 21 to emit light according to the set parameter signal and the trigger signal. That is, after the user identifies the status of the lamp head 20 through the display unit, they set the corresponding parameters to control the light-emitting component 21 to emit light.

[0039] Furthermore, the controller 31 can also control the light-emitting component 21 to turn on via a first signal or a second signal, as well as a trigger signal. Specifically, after recognizing the first signal or the second signal, the controller 31 automatically controls the light-emitting component 21 to emit light via a trigger signal.

[0040] In this embodiment, the light-emitting component 21 can emit light in either a direct illumination mode or a bounce flash mode. In the direct illumination mode, the light emitted by the light-emitting component 21 directly illuminates the subject. In the bounce flash mode, the light emitted by the light-emitting component 21 is reflected by other objects before illuminating the subject.

[0041] In some embodiments, in bounce flash mode, the light emitted by the light-emitting component 21 can first be directed onto the surface of an object such as a ceiling, wall, or reflector to form reflected light, which then illuminates the subject, thereby uniformly illuminating the subject. Because the light scatters during reflection, harsh shadows on the subject are reduced, creating a natural and soft lighting effect.

[0042] It should be noted that in bounce mode, light is lost during reflection, resulting in reduced brightness. Therefore, the output power of the light-emitting component 21 is higher in bounce mode than in direct light mode.

[0043] In this embodiment, the controller 31 can control the light-emitting component 21 to emit light in a direct-light mode according to the first signal and the trigger signal, and simultaneously, the controller 31 can control the light-emitting component 21 to emit light in an intermittent flashing mode according to the second signal and the trigger signal. That is, when the lamp head 20 is in the first state, the light-emitting component 21 operates or emits light in a direct-light mode. When the lamp head 20 is in the second state, the light-emitting component 21 operates or emits light in an intermittent flashing mode.

[0044] It should be noted that when the flash head 20 is in the second state, it can also be manually controlled to make the light-emitting component 21 work or emit light in direct mode, so that the on-camera flash 100 can quickly adapt to different usage scenarios and facilitate the use of the on-camera flash 100.

[0045] Referring to Figures 1, 2, and 3, the lamp head 20 is rotatable relative to the main body 10 around a first axis X and a second axis Y, and the first axis X and the second axis Y are set at an angle. It should be noted that X and Y in the figures are only schematic diagrams of one embodiment of this application and do not represent the extension directions of X and Y in other embodiments.

[0046] In some embodiments, the first axis X may extend axially along the width or thickness direction of the body 10. The second axis Y may extend axially along the length or height direction of the body 10. For example, the first axis X may be located in the horizontal direction, while the second axis Y may extend vertically.

[0047] In addition, the angle between the first axis X and the second axis Y can be set to a right angle, or to an obtuse angle or an acute angle, so that the lamp head 20 can rotate relative to the main body 10 around different axes, thereby improving the usability of the on-camera flash 100.

[0048] In some embodiments, referring to FIG2, the on-camera flash 100 may include a connector 12. The flash head 20 is connected to the body 10 via the connector 12.

[0049] The connecting seat 12 may include a first connecting portion 13 and a second connecting portion 14. The first connecting portion 13 is connected to the main body 10 and is rotatable relative to the main body 10, allowing the connecting seat 12 to rotate relative to the main body 10 about a second axis Y. The second connecting portion 14 is connected to the lamp holder 20 via a pivot 15, allowing the lamp holder 20 to rotate relative to the connecting seat 12 about the pivot 15, that is, the lamp holder 20 rotates relative to the connecting seat 12 about a first axis X.

[0050] For ease of description, the direction of rotation of the lamp head 20 around the first axis X, when it is close to the main body 10, is defined as clockwise. The direction of rotation of the lamp head 20 around the first axis X, when it is away from the main body 10, is defined as counterclockwise.

[0051] Referring to Figures 1 and 3, the lamp head 20 can rotate around the first axis X within a range of -7° to 90°. Specifically, as shown in Figures 1 and 2, when the lamp head 20 is at 0°, its central axis Z extends horizontally. Simultaneously, when the lamp head 20 is at 90°, its central axis extends vertically. When the lamp head 20 is at 0°, continuing to rotate it clockwise places it within the range of -7° to 0°.

[0052] In this embodiment, when the lamp head 20 is within the range of -7° to 30°, the lamp head 20 is in the first state, as shown in Figure 1. Simultaneously, when the lamp head 20 is within the range of 31° to 90°, the lamp head 20 is in the second state, as shown in Figure 3.

[0053] In some embodiments, when the lamp head 20 rotates around the first axis X, it can be fixed at angles of -7°, 0°, 30°, 45°, 60°, and 90°, thereby restricting the rotation of the lamp head 20 relative to the main body 10. Specifically, the lamp head 20 is provided with fixed positions at angles of -7°, 0°, 30°, 45°, 60°, and 90°, so that when the lamp head 20 rotates around the first axis X to the corresponding angle, it can be stopped and fixed relative to the main body 10, thereby allowing the lamp head 20 to continue working at that position and preventing the lamp head 20 from rotating relative to the main body 10 during operation. At other angles, the lamp head 20 can only rotate relative to the main body 10.

[0054] In this embodiment, the lamp head 20 can rotate around the second axis Y in the range of 0° to 270° or in the range of 0° to 360°, thereby expanding the illumination range of the lamp head 20.

[0055] In some embodiments, referring to FIG2, the light-emitting component 21 may include a lamp body 22, a lamp body PCB board 23, a first lamp body lens 24, and a second lamp body lens 25.

[0056] The lamp body 22 and the lamp body PCB board 23 are installed inside the lamp head 20, and the lamp body 22 is connected to the lamp body PCB board 23. The lamp body PCB board 23 is electrically connected to the controller 31, enabling the controller 31 to control the operation of the lamp body 22. In this embodiment, the lamp body 22 can be a xenon lamp tube. In other embodiments, the lamp body 22 can also be an LED lamp or other lamp tubes.

[0057] The first lamp body lens 24 and the second lamp body lens 25 are respectively connected inside the lamp head 20. The first lamp body lens 24 and the second lamp body lens 25 are located downstream of the light emission direction of the lamp body 22. The first lamp body lens 24 can be set as a diffuser or a light diffuser plate, and the second lamp body lens 25 can be set as a Fresnel lens, so that the first lamp body lens 24 and the second lamp body lens 25 can refract or transmit the light emitted by the lamp body 22, thereby ensuring that the light emitted by the light-emitting component 21 meets the actual needs.

[0058] In some embodiments, referring to Figures 2 and 4, the on-camera flash 100 may include a display 32. The display 32 is attached to the outer wall of the main body 10 and electrically connected to the controller 31. The display 32 can be used to display a first signal and a second signal detected by the Hall sensor 41.

[0059] In some embodiments, the controller 31 can generate corresponding icons based on the first signal and the second signal, so that the operator can intuitively see whether the lamp head 20 is in the first state or the second state. For example, icons representing direct flash mode and bounce flash mode can be generated based on the first signal and the second signal, respectively. The user can adjust the flash parameters of the flash lamp according to the icon prompts to control the light emission of the light-emitting component.

[0060] In some embodiments, referring to Figures 1 and 2, the on-camera flash 100 may include a fill light 50. The fill light 50 is connected to the side wall of the main body 10. The fill light 50 may be located on the side of the main body 10 opposite to the display 32, that is, the display 32 and the fill light 50 are respectively located on opposite side walls of the main body 10. The fill light 50 can be used to supplement the illumination of the light-emitting component 21, thereby effectively solving the problem of low brightness in some areas and improving the lighting effect.

[0061] In some embodiments, referring to FIG2, the supplementary light 50 may include a supplementary light PCB board 51 and a supplementary light lens 52. The supplementary light PCB board 51 is housed within the mounting cavity 11 and electrically connected to the controller 31. An LED supplementary light for emitting light is disposed on the supplementary light PCB board 51. The LED supplementary light can be turned on or off under the control of the controller 31. The supplementary light lens 52 is connected to the main body 10 and located downstream of the light emission direction of the LED supplementary light, enabling the supplementary light lens 52 to transmit and refract the light generated by the LED supplementary light and to provide protection for the LED supplementary light. The supplementary light lens 52 may also be a Fresnel lens.

[0062] In some embodiments, referring to Figures 1 and 2, the on-camera flash 100 may include a hot shoe module 60.

[0063] The hot shoe module 60 is connected to the main body 10 and located on the side of the main body 10 away from the flash head 20. The hot shoe module 60 is used to connect to an external device, allowing the on-camera flash 100 to be detachably connected to an external device. The external device can be a camera or camcorder, or other photographic or video recording equipment.

[0064] In some embodiments, referring to Figures 1 and 2, the hot shoe module 60 may include a hot shoe body 61, a hot shoe locking ring 62, a hot shoe handle 63, and an unlocking spring 64. The hot shoe locking ring 62 is sleeved on the outer periphery of the hot shoe body 61, and can be engaged with an external device to stably connect the hot shoe body 61 to the external device. The unlocking spring 64 is connected between the hot shoe body 61 and the hot shoe locking ring 62 to restrict the movement of the hot shoe locking ring 62 relative to the hot shoe body 61, preventing the hot shoe body 61 from automatically detaching from the external device. The hot shoe handle 63 is connected to the hot shoe body 61 and to the unlocking spring 64, so as to drive the unlocking spring 64 to move relative to the hot shoe body 61, thereby releasing the unlocking spring 64 from the hot shoe locking ring 62, thus disengaging the hot shoe locking ring 62 from the external device, and disengaging the hot shoe module 60 from the external device.

[0065] In some embodiments, referring to FIG2, the hot shoe module 60 may also be provided with a hot shoe pin 65. The hot shoe pin 65 can be electrically connected to an external device, enabling the on-camera flash 100 to be electrically connected to an external device via the hot shoe pin 65.

[0066] In some embodiments, referring to Figures 2 and 4, the on-camera flash 100 may further include an auxiliary light 70. The auxiliary light 70 is attached to the side wall of the main body 10 and electrically connected to the controller 31. The auxiliary light 70 can be used to indicate the connection status of the on-camera flash 100 with external devices, such as indicating the connection between the hot shoe module 60 and external devices, or indicating the wireless connection status of the on-camera flash 100 with external devices.

[0067] In some embodiments, referring to FIG1, the on-camera flash 100 may further include a charging capacitor 71 and a transformer 72. The charging capacitor 71 is housed within the mounting cavity 11 and electrically connected to the controller 31 and the light-emitting component 21 to provide instantaneous voltage to the light-emitting component 21. The transformer 72 is connected to the PCB board of the controller 31 for voltage regulation.

[0068] In summary, the main body 10 has a mounting cavity 11, and the lamp head 20 is connected to the main body 10 and can rotate relative to the main body 10, allowing the lamp head 20 to switch between a first state and a second state. Furthermore, the lamp head 20 is equipped with a light-emitting component 21 for emitting light. A controller 31 is installed inside the mounting cavity 11 and is electrically connected to the light-emitting component 21 and an external device. The controller 31 can receive trigger signals to control the on / off state of the light-emitting component 21. The controller 31 can also receive and store user-input parameter signals, enabling the controller 31 to control the light-emitting mode of the light-emitting component 21 according to the parameter signals. Hall sensor 41 is mounted on the main body 10 and located on the side of the main body 10 facing the lamp head 20. Magnetic component 42 is mounted on the lamp head 20 and is set corresponding to Hall sensor 41, so that Hall sensor 41 can detect the rotation of lamp head 20 relative to the main body 10 by sensing magnetic component 42, thereby identifying whether lamp head 20 is in a first state or a second state, and outputting a first signal or a second signal to controller 31. Controller 31 can display the first signal or the second signal through display unit, thereby facilitating user identification.

[0069] Meanwhile, the controller 31 can control the light-emitting component 21 to turn on according to the parameter signal and the trigger signal, and can also control the light-emitting component 21 to turn on according to the first signal or the second signal, as well as the parameter signal and the trigger signal. It can also control the light-emitting component 21 to turn on through the first signal or the second signal and the trigger signal, thereby controlling the operation of the light-emitting component 21.

[0070] Although this disclosure has been described with reference to several typical embodiments, it should be understood that the terminology used is descriptive and exemplary, and not restrictive. Because this disclosure can be embodied in many forms without departing from the spirit or substance of the disclosure, 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. Therefore, all variations and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.

Claims

1. A built-in flash, connected to an external device, the built-in flash comprising: The main body is equipped with an installation cavity; The lamp head is connected to the main body and can rotate relative to the main body, so that the lamp head can switch between a first state and a second state; A light-emitting component for emitting light is provided on the side of the lamp head away from the main body; A controller is installed inside the mounting cavity and electrically connected to the light-emitting component and the external device; the controller is capable of receiving trigger signals for controlling the light-emitting component to turn on or off, and is capable of receiving and storing parameter signals for controlling the light-emitting component to emit light; A Hall sensor is mounted on the main body and located on the side of the main body facing the lamp head; the Hall sensor is electrically connected to the controller; A magnetic component is mounted on the lamp head and can rotate relative to the main body with the lamp head; the magnetic component is configured to correspond to the Hall sensor, so that the Hall sensor can identify the switching of the lamp head between a first state and a second state through the magnetic component; Specifically, when the Hall sensor identifies the lamp head as being in a first state, the Hall sensor can output a first signal to the controller; when the Hall sensor identifies the lamp head as being in a second state, the Hall sensor can output a second signal to the controller; the controller can display the first signal or the second signal through a display unit. Furthermore, the controller can control the light-emitting component to turn on according to the parameter signal and the trigger signal, or the controller can control the light-emitting component to turn on according to the first signal or the second signal, as well as the parameter signal and the trigger signal, or the controller can control the light-emitting component to turn on through the first signal or the second signal and the trigger signal.

2. The on-camera flash according to claim 1, wherein, The light-emitting component can emit light in either a direct light mode or a flashing light mode; The controller is capable of controlling the light-emitting component to emit light in the direct-light mode according to the first signal and the trigger signal; The controller can control the light-emitting component to emit light in the blinking mode according to the second signal and the trigger signal.

3. The on-camera flash according to claim 1 or 2, wherein, The lamp head is rotatable relative to the main body around a first axis and a second axis, and the first axis and the second axis are set at an angle.

4. The on-camera flash according to claim 3, wherein, The lamp head can rotate around the first axis in the range of -7° to 90°, and at 0°, the central axis of the lamp head extends in the horizontal direction.

5. The on-camera flash according to claim 4, wherein, When the lamp head is within the range of -7° to 30°, the lamp head is in the first state; when the lamp head is within the range of 31° to 90°, the lamp head is in the second state.

6. The on-camera flash according to claim 4 or 5, wherein, When the lamp head rotates around the first axis, the lamp head can be fixed at an angle of -7°, 0°, 30°, 45°, 60° and 90° to restrict the rotation of the lamp head relative to the main body.

7. The on-camera flash according to any one of claims 3 to 6, wherein, The lamp head can rotate around the second axis in the range of 0° to 270°.

8. The on-camera flash according to any one of claims 3 to 6, wherein, The lamp head can rotate around the second axis in the range of 0° to 360°.

9. The on-camera flash according to any one of claims 3 to 8, wherein, The on-camera flash includes a connector, which includes a first connecting part and a second connecting part. The first connecting part is connected to the main body and is rotatable relative to the main body, so that the connector can rotate relative to the main body around a second axis. The second connecting part is connected to the lamp head through a pivot, so that the lamp head can rotate relative to the connector around the pivot.

10. The on-camera flash according to any one of claims 1 to 9, wherein, It also includes a fill light for supplemental lighting; the fill light is connected to the side wall of the main body.

11. The on-camera flash according to any one of claims 1 to 10, wherein, It also includes a hot shoe module for connecting external devices; the hot shoe module is connected to the body and located on the side of the body away from the lamp head.

12. The on-camera flash according to any one of claims 1 to 11, wherein, It also includes an auxiliary light; the auxiliary light is connected to the side wall of the main body and electrically connected to the controller.

13. The on-camera flash according to any one of claims 1 to 12, wherein, The display unit is a monitor, which is mounted on the main body and is electrically connected to the controller.

14. The on-camera flash according to claim 13, wherein, The on-board flash includes a fill light, which is mounted on the main body. The fill light and the display are located on opposite side walls of the main body, respectively.

15. The on-camera flash according to any one of claims 1 to 14, wherein, The light-emitting component includes a lamp body, a lamp body PCB board, a first lamp body lens, and a second lamp body lens. The lamp body and the lamp body PCB board are installed inside the lamp head, and the lamp body is connected to the lamp body PCB board. The lamp body PCB board is electrically connected to the controller, enabling the controller to control the operation of the lamp body. The first lamp body lens and the second lamp body lens are respectively connected inside the lamp head, and the first lamp body lens and the second lamp body lens are respectively located downstream of the light emission direction of the lamp body.

16. The on-camera flash according to claim 15, wherein, The first lamp body lens is a diffuser, and the second lamp body lens is a Fresnel lens.

17. The on-camera flash according to claim 15, wherein, The first lamp body lens is a diffuser plate, and the second lamp body lens is a Fresnel lens.

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