Inflatable softbox and photographic lighting system

Abstract

Disclosed in the present application are an inflatable softbox (100) and a photographic lighting system (1000). The inflatable softbox (100) comprises a body (1) and an adapter ring (3). The inside of the body (1) is hollow and is provided with an inflatable cavity (11) that can be inflated, the inner wall of the inflatable cavity (11) being provided with a light reflecting surface (8) for reflecting light. The body (1) is provided with a light incident surface (12) and light emitting surface (13) for transmitting light, the light emitting surface (13) being provided with a light softening fabric (7) for softening light. The adapter ring (3) is arranged on the body (1) and corresponds to the light incident surface (12). The adapter ring (3) is used for connecting to a light source (4), and light emitted by the light source (4) can enter the inflatable cavity (11) via the light incident surface (12) and be reflected by the light reflecting surface (8) and emitted from the light emitting surface (13).

Description

Inflatable softbox and photography lighting system

[0001] This application claims priority to Chinese Patent Application No. 202421786006.1, filed on July 24, 2024, entitled "Inflatable Softbox and Photographic Lighting System", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of photography and videography technology, and in particular to an inflatable softbox and a photography lighting system. Background Technology

[0003] In photography and videography, inflatable photography lights emit light evenly and have a good soft light effect, making them particularly suitable for portrait photography. Therefore, they have always been loved by many photographers.

[0004] An inflatable photographic light consists of an inflatable softbox, an air cushion, and other inflatable structures, as well as a light source located within these inflatable structures.

[0005] Application content

[0006] The purpose of this application is to provide an inflatable softbox, including a body and an adapter ring. The body is hollow and has an inflatable cavity inside. The inner wall of the inflatable cavity has a reflective surface for reflecting light. The body has a light-inlet surface and a light-outlet surface for transmitting light. The light-outlet surface has a softbox fabric for softening light. The adapter ring is disposed on the body and is positioned corresponding to the light-inlet surface. The adapter ring is used to connect to a light source. Light emitted by the light source can enter the inflatable cavity through the light-inlet surface and be reflected by the reflective surface before exiting through the light-outlet surface.

[0007] This inflatable softbox connects to the light source via an adapter ring, allowing it to be directly mounted on existing light sources to provide a soft light effect. Since the inflatable softbox does not require a separate light source and power supply, it reduces the weight and size of the photography lighting system, improving the ease of use of the inflatable softbox and the photography lighting system it comprises in outdoor scenes.

[0008] This application also provides a film and television lighting system, which includes a light source and the aforementioned inflatable softbox. The light source is connected to an adapter ring, and the light-emitting end of the light source is aligned with the light-receiving surface on the main body. Attached Figure Description

[0009] Figure 1 is a structural schematic diagram of an inflatable softbox according to some embodiments.

[0010] Figure 2 is a cross-sectional view of the inflatable softbox shown in Figure 1.

[0011] Figure 3 is an exploded view of the inflatable softbox shown in Figure 1.

[0012] Figure 4 is an exploded view of a photographic lighting system according to some embodiments.

[0013] Figure 5 is an exploded view of the photographic lighting system according to some other embodiments.

[0014] Figure 6 is a cross-sectional view of the inflatable softbox shown in Figure 6.

[0015] Figure 7 is an exploded view of the photographic lighting system according to some other embodiments.

[0016] Figure 8 is a cross-sectional view of the inflatable softbox shown in Figure 7.

[0017] Figure 9 is an exploded view of an inflatable softbox, a lamp retainer, and a magnetic attachment in a photographic lighting system according to some embodiments.

[0018] Figure 10 is a cross-sectional view of a photographic lighting system according to some embodiments.

[0019] The reference numerals in the attached drawings are explained as follows: 100, Inflatable softbox; 1000, Photographic lighting system; 1, Main body; 10, Main body part; 11, Inflation chamber; 12, Light-inlet surface; 13, Light-out surface; 14, First reflector surface; 15, Second reflector surface; 16, Mounting part; 17, Inflation valve; 2, Clamp; 21, Locking ring 21; 22, Fixing nut; 23, Locking knob; 24, Ear; 3, Adapter ring; 30, Ring body; 31, Buckle 31; 32, First connecting part; 33, Second connecting part; 34, Third connecting part; 4, Light source; 41, Annular slot; 5, Lamp retainer ring; 51, First ring part 51; 52, Second ring part; 53, Magnetic attachment; 6, Magnetic attachment part; 7, Softbox; 8, Reflective surface; 9, Inflation port. 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] Existing inflatable photography lights consist of an inflatable softbox, an air cushion, and a light source housed within the inflatable structure. Because the light source requires a separate power supply, the inflatable photography lights are heavy and bulky, making them inconvenient to use in outdoor environments. The purpose of this application is to solve the technical problem of existing inflatable softboxes requiring a separate light source and power supply, resulting in their large overall weight and bulk, and inconvenience in outdoor environments. Specific solutions are illustrated in the following embodiments.

[0024] Referring to Figures 1 and 2, this embodiment provides an inflatable softbox 100, which includes a body 1. The body 1 is the main structure of the inflatable softbox 100. The body 1 is hollow and has an inflatable cavity 11. The body 1 can be an inflatable airbag, and an inflation port 9 communicating with the inflation cavity 11 can be provided on the body 1. Inflation can be carried into the inflation cavity 11 through the inflation port 9, causing the body 1 to expand and take shape. It is understood that an inflation valve 17 can be provided at the inflation port 9 to open and close the inflation port 9. When the inflatable softbox 100 is not in use, the gas in the inflation cavity 11 can be discharged through the inflation valve 17 for easy storage of the inflatable softbox 100.

[0025] As shown in Figure 2, in some embodiments, the body 1 has a light-inlet surface 12 and a light-outlet surface 13 for light transmission. The light-inlet surface 12 and the light-outlet surface 13 are located in different areas of the body 1. The light-inlet surface 12 receives light, the light enters the inflation cavity 11 through the light-inlet surface 12, and then exits from the light-outlet surface 13, thereby achieving illumination.

[0026] In some embodiments, the inner wall of the inflation cavity 11 is further provided with a reflective surface 8 for reflecting light. Light can enter the inflation cavity 11 through the light-inlet surface 12 and be reflected by the reflective surface 8 before exiting from the light-outlet surface 13. By providing the reflective surface 8, the light entering the inflation cavity 11 can be reflected from different areas and converged onto the light-outlet surface 13, thereby improving the light intensity.

[0027] Referring to Figures 3 and 4, in some embodiments, the body 1 may include a main body portion 10, which is the main structure of the body 1. The main body portion 10 is hollow to form the aforementioned inflation cavity 11. An inflation port 9 is provided on the main body portion 10. The main body portion 10 is made of a flexible material and forms a columnar structure after inflation, such as a square columnar structure, a triangular columnar structure, a circular columnar structure, etc. It is understood that the main body portion 10 being a columnar structure means that its inflation cavity 11 is inflated and expands to form a columnar structure. In this embodiment, the main body portion 10 is inflated and expands into a cylindrical structure as an example for explanation.

[0028] In some embodiments, one end face of the main body 10 constitutes the light-inlet surface 12. The light-outlet surface 13 can be disposed on the outer peripheral side of the main body 10, so that the light-outlet area of ​​the main body 10 can be set to be larger and the illumination range can be larger.

[0029] In some embodiments, the light-emitting surface 13 is provided with a light-diffusing cloth 7 for softening light, so that the light emitted through the light-emitting surface 13 is softer.

[0030] Referring to Figure 2, in some embodiments, the reflective surface 8 includes a first reflective sub-surface 14. The first reflective sub-surface 14 is arranged opposite to the light-entry surface 12 and is disposed on the other end face of the main body 10. Light entering the inflation cavity 11 is reflected by the first reflective sub-surface 14 to the light-exiting surface 13, and then exits the main body 10 through the light-exiting surface 13. It can be understood that the first reflective sub-surface 14 is located on the inner side of one end of the main body 10, so that light entering the inflation cavity 11 can be reflected by the first reflective sub-surface 14 to the light-exiting surface 13.

[0031] In some embodiments, the first reflective surface 14 is opaque to prevent light from entering the inflation cavity 11 from the light-inlet surface 12 and then passing directly through the first reflective surface 14. The first reflective surface 14 and the light-inlet surface 12 can completely cover the end face of the main body 10, or a portion of the end face of the main body 10 can be used to form the first reflective surface 14 and the light-inlet surface 12. When the light-inlet surface 12 and the first reflective surface 14 completely cover one end face of the main body 10, more light enters, the reflection effect of the first reflective surface 14 is stronger, and finally, more light is emitted through the light-exit surface 13.

[0032] In some embodiments, the reflective surface 8 further includes a second reflective sub-surface 15, which is located in a different region of the main body 10 from the first reflective sub-surface 14, and can further improve the reflection effect of light in the inflation cavity 11.

[0033] In some embodiments, the outer peripheral side of the main body 10 is provided with a light-transmitting area and a light-blocking area. The light-transmitting area allows light to pass through, and therefore the light-emitting surface 13 described above can be formed in the light-transmitting area. The light-blocking area does not allow light to pass through, and the light-blocking area can be formed with the second reflective surface 15 described above. Light entering the inflation cavity 11 is reflected to the light-emitting surface 13 by the second reflective surface 15. In conjunction with the reflection of light by the first reflective surface 14, the light entering the inflation cavity 11 can be reflected to the light-emitting surface 13 from various angles.

[0034] In some embodiments, the second reflective sub-surface 15 is located on the inner side of the non-transparent area so that light cannot pass directly through the second reflective sub-surface 15. Diffuse reflectors may be provided on the first reflective sub-surface 14 and the second reflective sub-surface 15 to reflect light.

[0035] In some embodiments, the diffuse reflector can be optically silver-plated frosted particles to give the first reflective surface 14 and the second reflective surface 15 a highly efficient reflective effect. In addition to providing optically silver-plated frosted particles on the first reflective surface 14 and the second reflective surface 15, the first reflective surface 14 and the second reflective surface 15 can also be frosted to achieve high reflectivity or diffuse reflection.

[0036] As shown in Figure 3, the inflatable softbox 100 includes an adapter ring 3. In some embodiments, the adapter ring 3 is disposed on the body 1. The adapter ring 3 is disposed corresponding to the light-inlet surface 12. The adapter ring 3 is used to connect with the light source 4. The light emitted by the light source 4 can be emitted to the outside of the body 1 through the light-inlet surface 12, the inflation cavity 11 and the light-exit surface 13.

[0037] The light source 4 can be different types of photographic lights, connected to the inflatable softbox 100 via an adapter ring 3. This allows different types of light sources 4 to be used with the inflatable softbox 100, eliminating the need for the inflatable softbox 100 to have its own dedicated light source 4 and power supply. The inflatable softbox 100 can be directly mounted on existing light sources 4, improving its ease of use in outdoor scenarios.

[0038] In some embodiments, to facilitate the installation of the adapter ring 3, the main body 1 may further include a mounting portion 16 for installing the adapter ring 3. The mounting portion 16 is annular and is connected to the periphery of the end of the main body 10 that forms the light-receiving surface 12. When installing the adapter ring 3, the mounting portion 16 is sleeved on the outer periphery of the adapter ring 3, and one end of the adapter ring 3 can be snapped into the mounting portion 16. The adapter ring 3 can be coaxially arranged with the main body 10. The light emitted by the light source 4 can directly enter the light-receiving surface 12 of the main body 1 after passing through the adapter ring 3. The mounting portion 16 acts as a shield to prevent light leakage of the light emitted by the light source 4 before it enters the inflation cavity 11.

[0039] In some embodiments, the mounting portion 16 may be integrally formed with the main body portion 10. The mounting portion 16 is formed by extending from the outer peripheral side of the main body portion 10 outward along the axial direction of the main body portion 10 toward the outside of the light-receiving surface 12. The mounting portion 16 may also be an independent component from the main body portion 10. The mounting portion 16 may be connected to the end of the main body portion 10 by means of snap-fit, screw-fit, or adhesive.

[0040] In some embodiments, the outer diameter of the adapter ring 3 matches the inner diameter of the mounting portion 16, and the two can be interference-fitted to secure the adapter ring 3. Alternatively, they can be clearance-fitted to facilitate the insertion of the adapter ring 3 into the mounting portion 16 and to secure it in other ways.

[0041] In some embodiments, the mounting part 16 may be inserted into the adapter ring 3 to connect the adapter ring 3 to the body 1.

[0042] In some embodiments, the adapter ring 3 is detachably connected to the mounting portion 16, so that when the inflatable softbox 100 needs to be used, the adapter ring 3 can be installed on the mounting portion 16 to facilitate connection with the light source 4. When the inflatable softbox 100 is not needed, the adapter ring 3 can be removed to facilitate storage of the inflatable softbox 100.

[0043] Referring to Figures 2 and 3, in some embodiments, the inflatable softbox 100 further includes a clamp 2. The clamp 2 is fitted onto the outer peripheral side of the mounting portion 16 and is used to fix the adapter ring 3 inside the mounting portion 16, thereby facilitating the installation and removal of the adapter ring 3. When it is necessary to install the adapter ring 3, first loosen the clamp 2 so that one end of the adapter ring 3 is inserted into the mounting portion 16, then tighten the clamp 2 to lock the mounting portion 16, thereby locking the adapter ring 3 onto the mounting portion 16.

[0044] In some embodiments, the clamp 2 may include a locking ring 21 and a locking member. The locking ring 21 has a break to allow its size to be adjusted. Exemplarily, the two ends of the break in the locking ring 21 are provided with ears 24, and the two ears 24 have openings at corresponding positions. The locking member includes a fixing nut 22 and a locking knob 23. One end of the locking knob 23 protrudes from the openings of the two ears 24 and is screwed onto the fixing nut 22. By screwing the locking knob 23 onto the fixing nut 22, the two ears 24 are locked, thereby allowing the size of the locking ring 21 to be adjusted. When locking the adapter ring 3, the locking ring 21 can be first fitted onto the outer surface of the mounting part 16, and then the locking knob 23 can be turned to cooperate with the fixing nut 22 to reduce the break in the locking ring 21, thereby locking the mounting part 16 and the adapter ring 3.

[0045] In some embodiments, the locking element may further include two locking buckles, which are respectively disposed on the two ears 24. When it is necessary to lock the adapter ring 3, the two locking buckles engage with each other to lock the locking ring 21 onto the mounting portion 16.

[0046] In some embodiments, the clamp 2 may be a locking ring, with an extension section at the break of the locking ring. When it is necessary to lock the adapter ring 3, the two extension sections can be twisted together to reduce the size of the locking ring opening and lock the mounting part 16.

[0047] In some embodiments, the adapter ring 3 includes a ring body 30 and a snap fastener 31. One end of the ring body 30 is used to connect to the main body 1. The snap fastener 31 is disposed on the end of the ring body 30 facing away from the main body 1. The adapter ring 3 is engaged with the light source 4 via the snap fastener 31 to adapt to different types of light sources 4. Specifically, the ring body 30 is connected to the mounting portion 16.

[0048] Referring to Figure 4, it should be noted that the light source 4 is various photographic lights and flashes. The outer peripheral wall of the light-emitting end of the light source 4 is provided with an annular groove 41. The buckle 31 is configured to be able to be fastened in the groove, so that the adapter ring 3 can be connected to the light source 4, as long as the light-emitting end of the light source 4 is provided with an annular groove 41.

[0049] In some embodiments, multiple buckles 31 may be provided, and the multiple buckles 31 are distributed circumferentially at intervals along the end of the ring body 30 away from the body 1, so as to improve the connection stability between the adapter ring 3 and the light source 4.

[0050] Referring to Figure 3, in some embodiments, the ring body 30 may include a first connecting portion 32 that engages with the mounting portion 16 and a second connecting portion 33 that connects with the light source 4. The dimensions of the first connecting portion 32 are adapted to the dimensions of the mounting portion 16. The dimensions of the second connecting portion 33 are adapted to the dimensions of the annular groove 41 at the light-emitting end of the light source 4. The first connecting portion 32 and the second connecting portion 33 are coaxially arranged. A latch 31 is provided on the second connecting portion 33.

[0051] In this embodiment, the diameter of the first connecting part 32 is larger than the diameter of the second connecting part 33. In this way, after the light-emitting end of the light source 4 is connected to the second connecting part 33, the light emitted by it can pass through the interior of the first connecting part 32 and be directed to the light-inlet surface 12 of the body 1.

[0052] A third connecting part 34 may be provided between the first connecting part 32 and the second connecting part 33. The third connecting part 34 has a frustum structure. The large-diameter end of the third connecting part 34 is connected to one end of the first connecting part 32, and the small-diameter end of the third connecting part 34 is connected to one end of the second connecting part 33. The first connecting part 32, the second connecting part 33 and the third connecting part 34 are arranged coaxially.

[0053] In some embodiments, the first connecting portion 32 and the second connecting portion 33 may be the same size, so that the ring body 30 is an overall ring-shaped column structure.

[0054] In some embodiments, when the adapter ring 3 is connected to the light source 4, the buckle 31 can also be disposed on the light-emitting end of the light source 4, and the annular groove 41 is disposed on the outer peripheral wall of the adapter ring 3, thereby connecting the adapter ring 3 and the light source 4.

[0055] In some embodiments, the adapter ring 3 and the light-emitting end of the light source 4 can also be connected by snap-fit ​​or screw-fit.

[0056] Referring to Figure 4, this embodiment also provides a photographic lighting system 1000. The photographic lighting system 1000 includes a light source 4 and the aforementioned inflatable softbox 100. The light source 4 is connected to the adapter ring 3 in the inflatable softbox 100. The light emitted by the light source 4 can pass through the light-receiving surface 12.

[0057] In some embodiments, the light-emitting end of the light source 4 corresponds to the light-receiving surface 12 on the body 1, so that the inflatable softbox 100 and different light sources 4 can be connected via the adapter ring 3. Optionally, the light-emitting end of the light source 4 is aligned with the light-receiving surface 12 on the body 1.

[0058] Since the shapes of different light sources 4 may be different, as shown in Figures 5 and 6, the light source 4 can be a square on-camera flash; as shown in Figure 4, the light source 4 can be a round flash head; as shown in Figures 7 and 8, the light source 4 can also be a round photographic light, etc., which results in the light-emitting end of the light source 4 having different shapes. The light-emitting end does not have an annular slot 41, so it cannot be directly connected to the adapter ring 3.

[0059] Therefore, in some embodiments, the photographic lighting system 1000 further includes a lamp retainer 5. The lamp retainer 5 is detachably mounted on the adapter ring 3. Multiple lamp retainers 5 are provided. Multiple lamp retainers 5 can be adapted and connected to multiple different light sources 4. The light-emitting end of the light source 4 is engaged with the lamp retainer 5, and the lamp retainer 5 is connected to the adapter ring 3, so that different light sources 4 can be connected to the adapter ring 3 through their compatible lamp retainers 5.

[0060] It is understandable that when the lamp retaining ring 5 is connected to the adapter ring 3, the lamp retaining ring 5 has the aforementioned annular groove 41 on its outer peripheral wall, one end of the lamp retaining ring 5 is inserted into the adapter ring 3, and the buckle 31 on the adapter ring 3 is engaged in the annular groove 41 on the lamp retaining ring 5.

[0061] Referring to Figures 9 and 10, in this embodiment, the lamp retaining ring 5 includes a first ring portion 51 for connecting with the adapter ring 3 and a second ring portion 52 for connecting with the light source 4. The aforementioned annular groove 41 is provided on the outer peripheral wall of the first ring portion 51, and the first ring portion 51 is engaged in the adapter ring 3 so that the lamp retaining ring 5 can be connected to the adapter ring 3.

[0062] It should be noted that multiple lamp retaining rings 5 ​​can be selectively installed on the adapter ring 3. The structure of the second ring portion 52 of each lamp retaining ring 5 is different. The shapes of the light sources 4 connected to the different second ring portions 52 are different. The different shapes of the light sources 4 refer to the different outer contours of the light-emitting end of the light source 4. Therefore, the internal shape of the second ring portion 52 of each lamp retaining ring 5 is adapted to the shape of the light-emitting end of the light source 4 it is compatible with. For example, when the light source 4 is a square on-camera flash, the interior of the second ring portion 52 is a square annular cavity adapted to it. When the light source 4 is a round flash head, the interior of the second ring portion 52 is a round annular cavity adapted to it. When the light source 4 is a round photographic light, the interior of the second ring portion 52 is a round annular cavity adapted to it, and it has multiple locking blocks inside for engaging with it.

[0063] In this embodiment, a magnetic element 53 is also provided on the end face of the lamp retaining ring 5 facing away from the light source 4. A magnetic element 6 is attached to the magnetic element 53, and the magnetic element 6 and the lamp retaining ring 5 are coaxially arranged. The magnetic element 6 can be a filter to filter the light from the light source 4 directed into the inflatable softbox 100, thereby forming light of different colors. The magnetic element 53 can be a magnetic ring, which is disposed on the end face of the lamp retaining ring 5 facing away from the light source 4, and the magnetic element 6 is magnetically attached to the magnetic ring. Multiple magnetic elements 6 can be provided, and the multiple magnetic elements 6 are arranged sequentially along the axial direction of the lamp retaining ring 5.

[0064] In this embodiment, during assembly, the light source 4 can be first installed on the adapter ring 3 through its matching lamp retainer 5, then the adapter ring 3 can be installed on the mounting part 16 of the inflatable softbox 100, and finally the adapter ring 3 can be locked on the inflatable softbox 100 using the clamp 2 to complete the assembly and form the photographic lighting system 1000.

[0065] In this application, by setting the adapter ring 3, it can be connected to the light source 4 that is directly compatible with it to form a photographic lighting system 1000. At the same time, with the light fixture retainer 5, it can be connected to more types of existing light sources 4 to expand the application range of the light source 4. Thus, the inflatable softbox 100 does not need to be configured with a separate light source and power supply. When used in outdoor and other scenarios, it has the advantages of being lightweight, small in size and highly portable.

[0066] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

[0067] For ease of explanation, the above description has been provided in conjunction with specific embodiments. However, the above exemplary discussion is not intended to be exhaustive or to limit the embodiments to the specific forms disclosed above. Various modifications and variations can be obtained based on the above teachings. The selection and description of the above embodiments are for the purpose of better explaining the principles and practical applications, thereby enabling those skilled in the art to better utilize the described embodiments and various different variations of embodiments suitable for specific use considerations.

Claims

1. An inflatable softbox, characterized in that, The application relates to a soft light box. The body is internally hollow and internally provided with an inflatable cavity capable of being inflated, the inner wall of the cavity is provided with a light-reflecting surface for reflecting light, the body is formed with a light-transmitting surface and a light-emitting surface, and the light-emitting surface is provided with a soft light cloth for soft light. An adapter ring is arranged on the body and corresponds to the light-transmitting surface; the adapter ring is used for being connected with a light source, light emitted by the light source can enter the inflatable cavity through the light-transmitting surface, and the light is reflected by the light-reflecting surface and emitted from the light-emitting surface.

2. The inflatable soft light box according to claim 1, wherein the body comprises a main body part and a mounting part, the main body part is made of flexible material and forms a columnar structure after being inflated, and an end surface of the main body part constitutes the light-transmitting surface; the mounting part is annular, is connected to the end surface of the main body part at the periphery of the end surface, and is sleeved on the outer periphery of the adapter ring.

3. The soft light box of claim 2, wherein, The columnar structure is a square columnar structure, a triangular columnar structure or a circular columnar structure.

4. The soft light box of claim 2, wherein, The light-emitting surface is arranged on the outer peripheral side surface of the main body part.

5. The soft light box of claim 2, wherein, The adapter ring is detachably connected to the mounting part.

6. The soft light box of claim 5, wherein, The inflatable soft light box further comprises a clamp, the clamp is sleeved on the outer peripheral side surface of the mounting part, and the clamp is used for fixing the adapter ring in the mounting part.

7. The inflatable soft light box according to claim 2, wherein the light-reflecting surface comprises a first light-reflecting sub-surface, the first light-reflecting sub-surface is arranged on the other end surface of the main body part and is opposite to the light-transmitting surface, light entering the inflatable cavity is reflected by the first light-reflecting sub-surface to the light-emitting surface, and the light-emitting surface is arranged on the outer peripheral side surface of the main body part.

8. The inflatable soft light box according to claim 7, wherein the light-reflecting surface comprises a second light-reflecting sub-surface, the outer peripheral side surface of the main body part is provided with a light-transmitting area and a non-light-transmitting area, the light-emitting surface is formed in the light-transmitting area, and the second light-reflecting sub-surface is formed in the non-light-transmitting area, and light entering the inflatable cavity is reflected by the second light-reflecting sub-surface to the light-emitting surface.

9. The inflatable soft light box according to claim 1, wherein an annular clamping groove is formed in the outer peripheral wall of the light-emitting end of the light source; the adapter ring comprises a ring main body and a buckle, one end of the ring main body is connected with the body, the buckle is arranged on the end of the ring main body away from the body, and the buckle can be buckled in the annular clamping groove.

10. The soft light box of claim 9, wherein, the ring main body comprises a first connecting part and a second connecting part, the first connecting part is connected with the main body, the second connecting part is connected with the light source, the first connecting part and the second connecting part are coaxially arranged, and the buckle is arranged on the second connecting part.

11. The soft light box of claim 10, wherein, a third connecting part is arranged between the first connecting part and the second connecting part, and the third connecting part is a circular truncated cone structure.

12. The soft light box of claim 10, wherein, the size of the first connecting part is consistent with the size of the second connecting part, so that the whole ring main body is an annular columnar structure.

13. The soft light box of claim 9, wherein, The light source is provided with a buckle, the adapter ring is provided with an annular clamping groove on the outer peripheral wall, and the buckle can be buckled on the adapter ring to connect the adapter ring and the light source.

14. The soft light box of claim 1, wherein, The body is further provided with an inflation port in communication with the inflation cavity, and the inflation port is provided with an inflation valve for opening and closing the inflation port.

15. A photographic lighting system comprising a light source and the inflatable soft light box according to any one of claims 1-14, the light source and the adapter ring being connected, and the light emitted by the light source being capable of passing through the light inlet surface.

16. The photographic lighting system of claim 15, wherein, The photographic lighting system further comprises lamp holder clamps, the lamp holder clamps being detachably mounted on the adapter ring, a plurality of the lamp holder clamps being provided, and the plurality of the lamp holder clamps being selectively mounted on the adapter ring, the lamp holder clamps comprising first ring portions and second ring portions, the first ring portions being used for connecting the adapter ring, the second ring portions being used for connecting the light source, the second ring portions of the lamp holder clamps being different in structure, and the light sources connected by the second ring portions of different structures being different in shape.

17. The photographic lighting system of claim 16, wherein, When the light source is square, the second ring portion is internally provided with a square ring cavity matched with the light source.

18. The photographic lighting system of claim 16, wherein, When the light source is circular, the second ring portion is internally provided with a circular ring cavity matched with the light source.

19. The photographic lighting system of claim 16, wherein, The lamp holder clamps are further provided with magnetic attraction members on the end faces away from the light source, the magnetic attraction members are provided with magnetic attraction accessories, and the magnetic attraction accessories and the lamp holder clamps are coaxially arranged.

20. The photographic lighting system of claim 19, wherein, A plurality of the magnetic attraction accessories are provided, and the plurality of the magnetic attraction accessories are arranged along the axial direction of the lamp holder clamps.

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