Auxiliary flash and flash system

The auxiliary flash system, which utilizes both magnetic and electrical connections, solves the problem of low installation efficiency of external flash units, thereby improving illumination uniformity and user experience.

WO2026157869A1PCT designated stage Publication Date: 2026-07-30GODOX PHOTO EQUIPMENT CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
GODOX PHOTO EQUIPMENT CO LTD
Filing Date
2025-12-31
Publication Date
2026-07-30

AI Technical Summary

Technical Problem

In the existing technology, the installation and removal efficiency of external flashes and on-camera flashes is low, which affects the user experience and results in uneven lighting effects.

Method used

The system employs a magnetic connection, allowing the secondary flash to be detachably mounted on the primary flash. Signal and current transmission is achieved through an electrical connection, and the combination of a reflector and Fresnel lens enhances light efficiency.

Benefits of technology

It simplifies the installation and removal of the secondary flash, improves illumination uniformity and user experience, and enhances light efficiency.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN2025148042_30072026_PF_FP_ABST
    Figure CN2025148042_30072026_PF_FP_ABST
Patent Text Reader

Abstract

An auxiliary flash (20) and a flash system. The flash system comprises a main flash (10) and the auxiliary flash (20). A first magnetic member (11) is fixed on the main flash (10); a second magnetic member (21) is fixed on the auxiliary flash (20); and the second magnetic member (21) and the first magnetic member (11) can be magnetically attracted, so that the auxiliary flash (20) is detachably connected to the main flash (10). The auxiliary flash (20) can be conveniently mounted on the main flash (10), thereby improving the mounting and dismounting efficiency between the auxiliary flash (20) and the main flash (10), simplifying the operation of mounting the auxiliary flash (20) on the main flash (10), and improving user experience.
Need to check novelty before this filing date? Find Prior Art

Description

Secondary flash and flash system

[0001] This application claims priority to Chinese Patent Application No. 202520159184X, filed on January 21, 2025, entitled “Secondary Flash and Flash System”, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of photographic and video equipment technology, and in particular to a secondary flash and flash system. Background Technology

[0003] As people's living standards continue to improve, photography is becoming increasingly popular in their daily lives, leading to higher demands for photographic quality. On-camera flash units are external lighting devices mounted on the camera via the hot shoe on top. Their excellent portability has made them a favorite among many users.

[0004] Nowadays, in addition to mounting a built-in flash on the camera, an external flash is often installed to the side of the built-in flash to ensure adequate lighting. Supplementing the built-in flash with an external flash effectively solves the problem of low brightness in certain areas and improves overall lighting.

[0005] Public content

[0006] This application provides a flash system, including:

[0007] The main flash includes a body and a lamp head, the lamp head being connected to the top of the body. The body includes a first surface and a second surface that are opposite or adjacent to each other. A first magnetic element is fixed on the first surface of the body, and a display area is provided on the second surface.

[0008] A secondary flash unit, wherein a second magnetic component is fixedly attached; the second magnetic component and the first magnetic component can be magnetically attracted to each other, so that the secondary flash unit can be detachably connected to the primary flash unit.

[0009] This application also provides a secondary flash unit externally mounted on a primary flash unit. The primary flash unit includes a body and a lamp head, with the lamp head connected to the top of the body. The body includes a first surface and a second surface that are opposite or adjacent to each other. The second surface is provided with a display area. A magnetic component is fixed to the secondary flash unit, and the magnetic component is detachably attached to the first surface of the primary flash unit. Attached Figure Description

[0010] Figure 1 is a schematic diagram of the structure of a flash system in one embodiment of the present invention.

[0011] Figure 2 is a schematic diagram of the structure of Figure 1 in another state.

[0012] Figure 3 is a schematic diagram of the main flash in Figure 1.

[0013] Figure 4 is a schematic diagram of the secondary flash unit in Figure 1.

[0014] Figure 5 is a cross-sectional view of Figure 1 in a certain direction.

[0015] Figure 6 is an enlarged view of part A in Figure 5.

[0016] Figure 7 is a cross-sectional view of Figure 1 in another direction.

[0017] Figure 8 is an enlarged view of part B in Figure 7.

[0018] Figure 9 is a schematic diagram of Figure 8 in another embodiment.

[0019] The reference numerals in the attached drawings are explained as follows: 10. Main flash; 11. First magnetic component; 12. Body; 121. Mounting surface; 122. Display area; 1211. First perforation; 123. First surface; 124. Second surface; 125. First power supply; 13. First light source; 14. Lamp head; 15. Positioning groove; 16. First electrical connector; 17. First circuit board; 18. First capacitor; 19. First wireless communication module; 20. Secondary flash; 21. Second magnetic component; 22. Housing; 221. Light-transmitting window; 222. First side; 223. Second side; 2231. Second perforation; 224. Second wireless communication module; 225. Second power supply; 23. Second light source; 24. Reflector; 25. Fresnel lens; 26. Positioning part; 27. Second electrical connector; 28. Second circuit board; 29. ​​Second capacitor. Detailed Implementation

[0020] Typical embodiments embodying the features and advantages of this application will be described in detail in the following description. It should be understood that this application can have various variations in different embodiments, all of which do not depart from the scope of this application, and the descriptions and illustrations therein are for illustrative purposes only and not intended to limit this application.

[0021] In the description of this application, it should be understood that, in the embodiments shown in the accompanying drawings, the indications of direction or positional relationships (such as up, down, left, right, front, and back) are merely for the convenience of describing this application and simplifying the description, and do not 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.

[0022] 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 application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0023] Figure 1 is a schematic diagram of the flash system in one embodiment of the present invention. Figure 2 is a schematic diagram of Figure 1 in another state. Figure 3 is a schematic diagram of the main flash 10 in Figure 1. Figure 4 is a schematic diagram of the secondary flash 20 in Figure 1.

[0024] Referring to Figures 1 to 4, in some embodiments, the flash system may include a main flash 10. The main flash 10 can be mounted on a shooting device such as a camera or camcorder. The main flash 10 is an external photographic auxiliary lighting device mounted on the camera via a hot shoe on top of the camera, and can be used to provide fill light for the camera. Besides the main flash 10, other types of flashes can also be used, such as handle flashes, studio flashes, etc.

[0025] In some embodiments, the flash system may include a secondary flash 20. The secondary flash 20 can be detachably mounted on the primary flash 10. The secondary flash 20 can supplement the illumination range of the primary flash 10, thereby effectively solving the problem of low brightness in some areas and improving the lighting effect.

[0026] In some embodiments, the main flash 10 may be provided with a first magnetic element 11. The first magnetic element 11 is magnetic. The secondary flash 20 may be provided with a second magnetic element 21. The second magnetic element 21 is magnetic. The second magnetic element 21 can be magnetically attracted to the first magnetic element 11, so that the secondary flash 20 can be detachably connected to the main flash 10, thereby improving the efficiency of installation and removal between the secondary flash 20 and the main flash 10, simplifying the operation of installing the secondary flash 20 on the main flash 10, and improving the user experience.

[0027] In some embodiments, the secondary flash 20 is fixed to the primary flash 10, and the secondary flash 20 and the primary flash 10 can be electrically connected to realize the transmission of control signals and operating current.

[0028] Figure 5 is a cross-sectional view of Figure 1 in one direction. Figure 6 is an enlarged view of part A in Figure 5. Figure 7 is a cross-sectional view of Figure 1 in another direction. Figure 8 is an enlarged view of part B in Figure 7.

[0029] Referring to Figures 1 to 9, in some embodiments, the main flash 10 may include a body 12, a first light source 13, and a lamp head 14 rotatably disposed at the top of the body 12. The first light source 13 may be located inside the body 12. The first light source 13 is capable of emitting light toward the lamp head 14. The first light source 13 may be a lamp tube. The end face of the lamp head 14 facing away from the body 12 is the light-emitting surface of the main flash 10. The user can rotate the lamp head 14 to adjust the light-emitting surface of the main flash 10, thereby achieving fill light for areas with low brightness.

[0030] In some embodiments, the first light source 13 may be a xenon lamp. It should be noted that the first light source 13 may also be an LED light-emitting unit or other lamps.

[0031] In some embodiments, the secondary flash 20 may include a housing 22 and a second light source 23. The housing 22 may serve as the outer housing of the secondary flash 20. The second light source 23 may be disposed within the housing 22. The second light source 23 may be a lamp tube. The housing 22 may provide mounting space for the light source. A light-transmitting window 221 may be provided on the housing 22. The second light source 23 may emit light toward the light-transmitting window 221, and the light emitted by the second light source 23 may exit from one side of the secondary flash 20 through the light-transmitting window 221.

[0032] In some embodiments, the second light source 23 may be a xenon lamp. It should be noted that the second light source 23 may also be an LED light-emitting unit or other lamps.

[0033] In some embodiments, a reflector 24 may be provided inside the housing 22. The reflector 24 may be disposed on the light-transmitting window 221. A receiving cavity may be formed between the reflector 24 and the light-transmitting window 221. The second light source 23 may be disposed in the receiving cavity so that the light emitted by the second light source 23 can be reflected by the reflector 24 and then emitted through the light-transmitting window 221, so that all the light emitted by the second light source 23 can be emitted through the light-transmitting window 221, thereby improving the light emission efficiency of the second light source 23 on the light-transmitting window 221.

[0034] In some embodiments, the secondary flash 20 may be equipped with a Fresnel lens 25. The Fresnel lens 25 may be positioned at the light transmission window 221. Light emitted from the second light source 23 can pass through the Fresnel lens 25 and exit from the housing 22. The Fresnel lens 25 can focus the light, enhancing the light efficiency of the secondary flash 20. When the secondary flash 20 is mounted on the primary flash 10, one side of the housing 22 is in contact with the primary flash 10, and light emitted from the second light source 23 can exit from the light transmission window 221.

[0035] In some embodiments, the housing 22 may include a first side 222 and a second side 223 disposed opposite to each other. A light-transmitting window 221 may be formed on the first side 222. Light emitted by the second light source 23 in the sub-flash 20 can be emitted from the first side 222 of the sub-flash 20 through the light-transmitting window 221.

[0036] In some embodiments, the main flash 10 may have a mounting surface 121. As an example, the body 12 of the main flash 10 may have a first surface 123 and a second surface 124, wherein the first surface 123 can be the mounting surface 121, on which a first magnetic element 11 is fixed, and the second surface 124 may have a display area 122. The first surface 123 and the second surface 124 are opposite to or adjacent to each other. The second side 223 of the secondary flash 20 may be disposed on the mounting surface 121 so that the secondary flash 20 is mounted on the mounting surface 121. As an example, as shown in FIG2, the side opposite the mounting surface 121 (first surface 123) (second surface 124) has a display area 122. The display area 122 may be a display area formed by a unit such as a liquid crystal display screen or an OLED screen, capable of displaying information such as text, patterns, and / or colors, to display information related to the operation and status of the main flash 10 and the secondary flash 20 to the user.

[0037] In some embodiments, the first magnetic element 11 may be formed on the mounting surface 121. The second magnetic element 21 may be formed on the second side surface 223. When the second side surface 223 is attached to the mounting surface 121, the second magnetic element 21 may be magnetically attracted to the first magnetic element 11, so that the sub-flash 20 is attracted to the mounting surface 121, thereby allowing the sub-flash 20 to be mounted on the main flash 10.

[0038] In some embodiments, the secondary flash 20 may have a protruding positioning portion 26. The positioning portion 26 may be disposed on the side of the secondary flash 20 near the primary flash 10. The primary flash 10 may have a recessed positioning groove 15. The positioning groove 15 may be formed on the side of the primary flash 10 near the secondary flash 20. The positioning portion 26 can be inserted and fixed within the positioning groove 15, so that the secondary flash 20 and the primary flash 10 can be fixedly positioned, thereby improving the stability of the installation between the secondary flash 20 and the primary flash 10.

[0039] It should be noted that in some other embodiments, the positioning part 26 may also protrude from the main flash 10, and the positioning groove 15 may also be formed on the secondary flash 20.

[0040] In some embodiments, the positioning part 26 may be provided on the second side surface 223. The positioning groove 15 may be formed on the mounting surface 121. When the positioning part 26 extends into the positioning groove 15, the second side surface 223 is in contact with the mounting surface 121, so that the second magnetic element 21 and the first magnetic element 11 are magnetically attracted, thereby realizing the installation of the sub-flash 20 and the main flash 10.

[0041] In some embodiments, two positioning parts 26 may be provided. The two positioning parts 26 may be arranged at intervals on the second side surface 223. Two positioning grooves 15 may be provided. The positioning grooves 15 may be arranged at intervals on the mounting surface 121. The two positioning parts 26 may extend simultaneously into the two positioning grooves 15, thereby further improving the stability of the connection between the main flash 10 and the auxiliary flash 20, and also enabling the auxiliary flash 20 to be positioned relative to the main flash 10, thus improving the accuracy of the installation between the auxiliary flash 20 and the main flash 10.

[0042] It should be noted that in some other embodiments, the positioning part 26 may also be provided in three or more locations. The positioning groove 15 may also be provided in three or more locations.

[0043] Referring to Figures 5 to 8, in some embodiments, the first magnetic element 11 can be fixed within the positioning groove 15. The second magnetic element 21 can be disposed within the positioning portion 26. When the positioning portion 26 extends into the positioning groove 15, the first magnetic element 11 and the second magnetic element 21 can come into contact and magnetically attract each other, thereby increasing the magnetic force of the magnetic attraction between the first magnetic element 11 and the second magnetic element 21 and improving the stability of the connection between the first magnetic element 11 and the second magnetic element 21.

[0044] In some embodiments, the main flash 10 may be provided with a first electrical connector 16 and a first circuit board 17. The first electrical connector 16 can be electrically connected to the first circuit board 17. The secondary flash 20 may be provided with a second electrical connector 27 and a second circuit board 28. The second electrical connector 27 can be electrically connected to the second circuit board 28. When the first magnetic component 11 and the second magnetic component 21 are magnetically attracted, the first electrical connector 16 can be electrically connected to the second electrical connector 27, thereby connecting the first circuit board 17 and the second circuit board 28, and thus realizing the electrical connection between the secondary flash 20 and the main flash 10. This allows for the transmission of control signals and operating current between the secondary flash 20 and the main flash 10, enabling the secondary flash 20 to be controlled for triggering via the function keys of the main flash 10.

[0045] In some embodiments, the first electrical connector 16 is a metal spring. The second electrical connector 27 can be a contact pin. One end of the contact pin can extend into the housing 22 and be electrically connected to the second circuit board 28. When the first magnetic component 11 and the second magnetic component 21 are magnetically attracted, the other end of the contact pin can be electrically connected to the first electrical connector 16, thereby realizing the electrical connection between the secondary flash 20 and the main flash 10.

[0046] In some embodiments, the first electrical connector 16 may be disposed inside the body 12, and the first electrical connector 16 may be exposed outside the body 12 through the mounting surface 121. The second circuit board 28 may be disposed inside the housing 22. One end of the contact pin can be electrically connected to the second circuit board 28 inside the housing 22, and the other end of the contact pin can protrude from the second side surface 223. When the second side surface 223 is in contact with the mounting surface 121, the end of the contact pin protruding from the second side surface 223 can extend into the body 12 and be electrically connected to the first electrical connector 16, thereby realizing the electrical connection between the secondary flash 20 and the main flash 10.

[0047] In some embodiments, a second through hole 2231 may be provided on the second side surface 223. One end of the stylus can extend into the housing 22 through the second through hole 2231 and be electrically connected to the first circuit board 17, and the other end of the stylus can extend out of the second side surface 223 through the second through hole 2231. A first through hole 1211 may be provided on the mounting surface 121. The first electrical connector 16 can be exposed to the main flash 10 through the first through hole 1211. When the second side surface 223 is in contact with the mounting surface 121, one end of the stylus extending out of the second side surface 223 can extend out of the main flash 10 through the first through hole 1211 and be electrically connected to the first electrical connector 16.

[0048] It should be noted that, as shown in Figure 9, in some other embodiments, the main flash 10 may be provided with a first wireless communication module 19, and the secondary flash 20 may be provided with a second wireless communication module 224. The secondary flash 20 and the main flash 10 are wirelessly connected through the first wireless communication module 19 and the second wireless communication module 224.

[0049] Referring to Figure 9, in some embodiments, the main flash 10 may include a first power supply 125. The first power supply 125 is electrically connected to the first circuit board 17. The first power supply 125 is also electrically connected to the first light source 13 to power the first light source 13. The first power supply 125 may be a battery.

[0050] It should be noted that in some other embodiments, the first power supply 125 may also be other devices that power the first light source 13.

[0051] Referring to Figure 9, in some embodiments, the secondary flash 20 may include a second power supply 225. The second power supply 225 is electrically connected to the second circuit board 28. The second power supply 225 is also electrically connected to the second light source 23 to power the second light source 23.

[0052] It should be noted that in some other embodiments, the second power supply 225 may also be other devices that power the second light source 23.

[0053] It should be noted that in some other embodiments, the second light source 23 can be electrically connected to the first power supply 125 through the first electrical connector 16 and the second electrical connector 27, so that the first power supply 125 supplies power to the second light source 23.

[0054] Please refer to Figures 5 to 8. In some embodiments, the main flash 10 may include a first capacitor 18. The first capacitor 18 may be located inside the camera body 12. The first capacitor 18 can be connected to the first light source 13 to provide operating voltage to the first light source 13, thereby achieving the flash effect of the main flash 10.

[0055] In some embodiments, the secondary flash 20 may include a second capacitor 29. The second capacitor 29 may be disposed inside the housing 22. The second capacitor 29 can be connected to the second light source 23 to provide operating voltage to the second light source 23, thereby achieving the flash effect of the secondary flash 20.

[0056] As can be seen from the above technical solution, this utility model has at least the following advantages and positive effects:

[0057] The flash system of this invention includes a main flash 10 and a secondary flash 20. The main flash 10 can be mounted on the top of an external photographic device and can be used to provide supplementary lighting for the external photographic device, thereby improving the shooting effect of the external photographic device. The secondary flash is used to provide supplementary lighting for the main flash 10, increasing the illumination area of ​​the lighting system. A first magnetic element 11 is fixed to the main flash 10, and a second magnetic element 21 is fixed to the secondary flash 20. The first magnetic element 11 and the second magnetic element 21 can be magnetically attracted to each other, thereby allowing the secondary flash 20 to be detachably mounted on the main flash 10 and making it easy to install the secondary flash 20 on the main flash 10. This improves the efficiency of installation and removal between the secondary flash 20 and the main flash 10, simplifies the operation of installing the secondary flash 20 on the main flash 10, and enhances the user experience.

[0058] Although this application has been described with reference to several typical embodiments, it should be understood that the terminology used is descriptive and exemplary, and not restrictive. Since this application can be embodied in many forms without departing from the spirit or substance of the application, 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 flash system, characterized in that, include: The main flash includes a body and a lamp head, the lamp head being connected to the top of the body. The body includes a first surface and a second surface that are opposite or adjacent to each other. A first magnetic element is fixed on the first surface of the body, and a display area is provided on the second surface. A secondary flash unit, wherein a second magnetic component is fixedly attached; the second magnetic component and the first magnetic component can be magnetically attracted to each other, so that the secondary flash unit can be detachably connected to the primary flash unit.

2. The flash system according to claim 1, characterized in that, The secondary flash lamp is provided with a protruding positioning part; The main flash lamp is recessed with a positioning groove; The positioning part can be inserted and fixed in the positioning groove so that the auxiliary flash is positioned and fixed on the main flash.

3. The flash system according to claim 2, characterized in that, The first magnetic component is disposed within the positioning groove; The second magnetic element is disposed on the positioning part; When the positioning part extends into the positioning groove, the first magnetic element and the second magnetic element are magnetically attracted to each other.

4. The flash system according to claim 1, characterized in that, The main flash is provided with a first electrical connector and a first circuit board, and the first electrical connector is electrically connected to the first circuit board. The secondary flash is provided with a second electrical connector and a second circuit board, and the second electrical connector is electrically connected to the second circuit board; When the first magnetic component and the second magnetic component are magnetically attracted, the first electrical connector and the second electrical connector dock to form an electrical connection, thereby electrically connecting the first circuit board and the second circuit board.

5. The flash system according to claim 4, characterized in that, The first electrical connector is a metal spring, and the second electrical connector is a contact pin; One end of the stylus extends into the secondary flash and is electrically connected to the second circuit board; when the first magnetic component and the second magnetic component are magnetically attracted, the other end of the stylus can be electrically connected to the first electrical connector.

6. The flash system according to claim 5, characterized in that, The secondary flash has a second through hole, one end of the contact pin can be electrically connected to the first circuit board through the second through hole, and the other end of the contact pin can extend out of the secondary flash through the second through hole; The first surface is provided with a first through hole, through which the first electrical connector can be exposed to the main flash lamp; The end of the stylus extending out of the secondary flash can be inserted into the main flash through the first perforation and electrically connected to the first electrical connector.

7. The flash system according to claim 4, characterized in that, The main flash includes a first power supply, which is electrically connected to the first circuit board. The secondary flash includes a second power supply, which is electrically connected to the second circuit board.

8. The flash system according to claim 4, characterized in that, The main flash includes a first capacitor electrically connected to the first circuit board, and the first capacitor is electrically connected to the light source of the main flash. The light source of the main flash is a xenon lamp tube and an LED light-emitting unit. The auxiliary flash includes a second capacitor, which is electrically connected to the light source of the auxiliary flash. The light source of the auxiliary flash is a xenon lamp tube and an LED light-emitting unit.

9. The flash system according to claim 4, characterized in that, The main flash includes a first capacitor electrically connected to the first circuit board, and the first capacitor is electrically connected to the light source of the main flash. The light source of the main flash is a xenon lamp or an LED light-emitting unit. The auxiliary flash includes a second capacitor, which is electrically connected to the light source of the auxiliary flash. The light source of the auxiliary flash is a xenon lamp or an LED light-emitting unit.

10. The flash system according to claim 4, characterized in that, The main flash is equipped with a first wireless communication module, and the secondary flash is equipped with a second wireless communication module. The secondary flash and the main flash are wirelessly connected through the first wireless communication module and the second wireless communication module.

11. The flash system according to claim 1, characterized in that, The secondary flash includes a housing and a light source disposed inside the housing; the housing has a light-transmitting window that allows light to escape, the second magnetic component is disposed on the side of the housing opposite to the light-transmitting window, and the light source is disposed close to the light-transmitting window; the light emitted by the light source can be emitted to the outside of the secondary flash through the light-transmitting window.

12. The flash system according to claim 11, characterized in that, The secondary flash also includes a Fresnel lens, which is positioned at the light-transmitting window.

13. The flash system according to claim 11, characterized in that, The outer shell is provided with a reflector, the reflector is disposed on the light-transmitting window, and an accommodating cavity is formed between the reflector and the light-transmitting window; The light source is located inside the accommodating cavity, and the light emitted by the light source is reflected by the reflector and emitted through the light-transmitting window.

14. The flash system according to claim 1, characterized in that, The body and the lamp head of the body are rotatably connected.

15. A secondary flash unit externally mounted to a main flash unit, the main flash unit comprising a body and a flash head, the flash head being connected to the top of the body, the body comprising a first surface and a second surface opposite or adjacent to each other, the second surface being provided with a display area, characterized in that, A magnetic component is fixed to the secondary flash, and the magnetic component is detachably attached to the first surface of the primary flash.