CN219065967U - Light-gathering airbag and lighting equipment - Google Patents

Abstract

The utility model discloses a condensing air bag, which is used for forming a hollow cavity after being inflated, wherein the hollow cavity is provided with a first light-transmitting wall, a second light-transmitting wall and a shading wall; the first light-transmitting wall is used for guiding light to be guided into the hollow cavity, and a lens is arranged on the first light-transmitting wall and used for concentrating the light guided by the first light-transmitting wall; the second light-transmitting wall is used for guiding the light concentrated by the lens to be guided out; the shading wall is used for shading light which is led into the hollow cavity from the first light-transmitting wall to pass through the shading wall; the condensing air bag is provided with an inflating nozzle, and can form a hollow cavity when being filled with air, and can be folded and stored after being exhausted. When the condensing air bag is in an inflated state, a light source with high illuminance at the condensing center and large illumination area can be obtained, and the condensing air bag can be folded and stored after being exhausted, so that the condensing air bag is convenient to carry.

Description

Light-gathering airbag and lighting equipment

Technical Field

The utility model relates to the technical field of film and television illumination, in particular to a condensing air bag and illumination equipment.

Background

Professional lighting equipment is often required to polish, distribute light and the like for shooting objects in film and television shooting, video shooting and advertisement shooting so that the shot image effect is better. At present, mainly used lighting equipment is a spotlight, and a spotlight body is usually provided with a point light source body and a panel type body, so that compared with the point light source body, the panel type body has a larger light emitting area and can meet the light distribution requirement of a larger range, but the corresponding lighting equipment is relatively huge in size, so that the spotlight is inconvenient to carry, and the spotlight operation process is complex.

Disclosure of Invention

In order to overcome the defects of the prior art, the utility model aims to provide a spotlight airbag so as to solve the problems that a spotlight is inconvenient to carry and complex to operate.

The utility model adopts the following technical scheme:

the condensing air bag is used for forming a hollow cavity after being inflated, the hollow cavity is provided with a first light-transmitting wall, a second light-transmitting wall and a shading wall, and the first light-transmitting wall, the second light-transmitting wall and the shading wall are mutually enclosed to form the hollow cavity; the first light-transmitting wall is used for guiding light to be guided into the hollow cavity, and a lens is arranged on the first light-transmitting wall and used for concentrating the light guided by the first light-transmitting wall; the second light-transmitting wall is used for guiding the light concentrated by the lens to be guided out; the shading wall is used for shading light which is led into the hollow cavity from the first light-transmitting wall to pass through the shading wall; the condensing air bag is provided with an inflating nozzle, and can form a hollow cavity when being filled with air, and can be folded and stored after being exhausted.

Further, the lenses are provided with a plurality of lenses which are distributed on the first light-transmitting wall in an equidistant array, and the lenses are used for being arranged in one-to-one correspondence with the light sources of the flexible cloth lamp.

Further, the plurality of lenses are arranged, each lens comprises a first lens and a second lens, and the first lenses are arranged in one-to-one correspondence with the first light sources of the flexible cloth lamps; the second lenses are arranged in one-to-one correspondence with the second light sources of the flexible cloth lamps, the first lenses are different from the second lenses, and the first light sources are different from the second light sources.

Further, the bottom end of the lens is provided with a mounting bracket, and the mounting bracket is provided with a mounting hole; the first light-transmitting wall is provided with a fastener, and the fastener penetrates through the first light-transmitting wall and is fixedly connected in the mounting hole so that the lens is mounted on the first light-transmitting wall.

Further, the fastener is provided with a limiting part and a clamping part, and the limiting part is arranged at the bottom end of the clamping part; one end of the clamping part, which is far away from the limiting part, is provided with a sliding guide inclined plane, and the sliding guide inclined plane is used for guiding the clamping part to be clamped in the mounting hole so that the limiting part abuts against the first light-transmitting wall.

Further, a gasket is arranged between the limiting part and the first light-transmitting wall and sleeved on the clamping part; the gasket is used for clamping between the limiting part and the first light-transmitting wall after the clamping part is clamped to the mounting hole so as to seal the first light-transmitting wall.

Further, the inside of spotlight gasbag is equipped with first connecting element, and first printing opacity wall is connected to first connecting element one end, and the second printing opacity wall is connected to the other end, and first connecting element is used for maintaining three-dimensional shape after spotlight gasbag is inflated, can accomodate between first printing opacity wall and second printing opacity wall after spotlight gasbag exhaust compression.

Further, the first connecting member is a flexible cord; the two ends of the flexible rope are respectively provided with a sucker, and the flexible rope is adsorbed on the condensing air bag through the sucker.

Further, a reflecting layer is arranged on one side of the shading wall, which is positioned in the hollow cavity, and the reflecting layer is used for receiving the light rays led into the hollow cavity by the first light-transmitting wall and reflecting the light rays so that the light rays pass through the second light-transmitting wall.

Further, a grid net is arranged on the second light-transmitting wall, and a plurality of grid holes are formed in the grid net; the grid holes are used for guiding light of the hollow cavity to be led out; the lens is one of a plano-convex lens, a fly-eye lens and a Fresnel lens.

The lighting equipment comprises the spotlight airbag, and further comprises a flexible cloth lamp, wherein a first connecting piece is arranged on the periphery of the flexible cloth lamp, a second connecting piece is correspondingly arranged on one side, deviating from the hollow cavity, of the first light-transmitting wall, and the first connecting piece and the second connecting piece are detachably connected so that the flexible cloth lamp and the spotlight airbag can be detachably connected.

Further, the first connecting piece is a first magic tape, the second connecting piece is a second magic tape, and the first magic tape and the second magic tape are pasted so that the flexible cloth lamp and the condensing air bag can be detachably connected.

Compared with the prior art, the utility model has the beneficial effects that:

the lens is arranged on the air bag to realize condensation, the central illuminance is high, the condensation area is large, the air bag is convenient to carry and store, and the air bag is inflated when in use, so that the operation is convenient.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic representation of the present utility model in semi-section;

FIG. 3 is a schematic view of a lens fixing method;

fig. 4 is a schematic structural view of the first connecting member.

In the figure: 11. a first light-transmitting wall; 12. a second light-transmitting wall; 3. a light shielding wall; 4. a lens; 5. a flexible cloth lamp; 60. a mounting hole; 61. a fastener; 62. a gasket; 611. a limit part; 612. a clamping part; 71. a first connecting member.

Detailed Description

The utility model will be further described with reference to the accompanying drawings and detailed description below:

in the description of the present utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.

In the case of example 1,

referring to fig. 1, 2 and 3, the present utility model provides a condensing air bag, wherein an inflating nozzle is arranged on the condensing air bag, the condensing air bag can form a hollow cavity when being inflated, and can be folded and stored after being exhausted. The light-gathering airbag is provided with a first light-transmitting wall 11, a second light-transmitting wall 12 and a shading wall 3, wherein the first light-transmitting wall 11, the second light-transmitting wall 12 and the shading wall 3 are mutually enclosed to form a hollow cavity, and the hollow cavity can be specifically enclosed to form a square body or a cylinder and the like.

It should be noted that, in this embodiment, the first light-transmitting wall 11 and the second light-transmitting wall 12 are structural layers of flexible air bags positioned at the top and bottom ends of the hollow cavity after the light-gathering air bag is inflated to form the hollow cavity, and the light-shielding wall 3 is a structural layer of flexible air bags surrounding the peripheries of the first light-transmitting wall 11 and the second light-transmitting wall 12, specifically, the structural layers corresponding to the first light-transmitting wall 11 and the second light-transmitting wall 12 of the light-gathering air bag may be made of light-transmitting materials (such as light-transmitting cloth), and the structural layers corresponding to the light-shielding wall 3 may be made of light-shielding materials or light-shielding material layers may be attached to the inner side or the outer layer of the structural layers.

The first transparent wall 11 may guide light into the hollow cavity, and the lens 4 is disposed on the first transparent wall 11, if the lens 4 is mounted on the first transparent wall 11 and located on one side of the hollow cavity, the lens 4 may concentrate the light guided by the first transparent wall 11 and converge into the hollow cavity, and if the lens 4 is mounted on the first transparent wall 11 and located on one side of the first transparent wall 11 away from the hollow cavity, the lens 4 may concentrate the light and then pass through the first transparent wall 11 to enter the hollow cavity.

The light shielding wall 3 is arranged between the first light transmitting wall 11 and the second light transmitting wall 12 in a surrounding manner, so that light led into the hollow cavity from the first light transmitting wall 11 can be shielded from penetrating out of the light shielding wall 3, and the light led into the hollow cavity can be led out of the light gathering airbag by the second light transmitting wall 12.

Taking the example that the lens 4 is mounted on the first light-transmitting wall 11 at one side of the hollow cavity, when the condensing air bag of the utility model is used, the condensing air bag is inflated by an inflator or a blower, until the first light-transmitting wall 11, the second light-transmitting wall 12 and the shading wall 3 of the condensing air bag are supported by air pressure to form the hollow cavity, and inflation is stopped.

Then the light source can be turned on, the light source is arranged in front of the first light-transmitting wall 11, so that the first light-transmitting wall 11 can guide the light of the light source into the light-gathering air bag, the lens 4 positioned on the first light-transmitting wall 11 concentrates the light and then emits parallel light towards the hollow cavity, the parallel light is guided out of the light-gathering air bag by the second light-transmitting wall 12, and the rest of light which does not pass through the lens 4 is emitted to the shading wall 3 by the first light-transmitting wall 11 and is shaded and absorbed by the shading wall 3, so that all the light concentrated by the lens 4 is emitted out of the light-gathering air bag from the second light-transmitting wall 12, an illumination area with high central illumination can be formed on the second light-transmitting wall 12, and the operations such as shooting of an object needing to be lighted or distributed can be performed by adjusting the orientation of the second light-transmitting wall 12.

After the use, the exhaust port of the condensing air bag is opened, the air is exhausted, the hollow cavity starts to shrink until the first light-transmitting wall 11 is attached to the second light-transmitting wall 12, the light shielding wall 3 is accommodated between the first light-transmitting wall 11 and the second light-transmitting wall 12, and at the moment, the condensing air bag can be folded and accommodated.

The condensing airbag among the application simple structure, central illuminance is high, aerifys and can form large tracts of land illumination region, and the shading wall 3 can shelter from the region that need not polish moreover, has guaranteed the play light effect when making a video recording, has also avoided condensing airbag light leak simultaneously to the light pollution that other environment produced around, can also fold after the exhaust accomodates, portable.

The lens 4 may be one of a plano-convex lens, a fly-eye lens, and a fresnel lens, and the lens 4 may be disposed inside the light-condensing air bag, specifically may be disposed at a hollow portion of the hollow chamber or on the first light-transmitting wall 11, and may also be disposed on a side of the first light-transmitting wall 11 facing away from the hollow chamber, so long as the light concentrated by the lens 4 is emitted out of the light-condensing air bag toward the second light-transmitting wall 12.

Further, in order to concentrate light rays to form a plurality of parallel lights, so that the irradiation area is larger, a plurality of lenses 4 on the first light-transmitting wall 11 can be provided, and the plurality of lenses 4 are arranged on the first light-transmitting wall 11 at equal intervals to form an equidistant array; the plurality of lenses 4 are used for being arranged in one-to-one correspondence with the plurality of light sources on the flexible cloth lamp 5.

On the basis of the structure, the specifications of the lenses 4 are the same, the light sources on the flexible cloth lamp 5 are also arranged in an equidistant array, a plurality of beams of light are irradiated by the flexible cloth lamp 5 and pass through the lenses 4 in a one-to-one correspondence manner, in the process of penetrating the lenses 4 by the beams of light, the lenses 4 concentrate the plurality of beams of light to form a plurality of parallel beams, and the lenses 4 are distributed in an equidistant array, so that the parallel beams of light are equidistant, and a parallel and uniform illumination surface is formed.

The light condensing air bag can concentrate light through the lens 4, so that a plurality of lenses 4 with the same specification form a plurality of parallel light beams, the central brightness and the illumination of the device are obviously improved, and the effect of uniform light condensing is achieved.

It should be noted that, based on this structure, the arrangement position of the plurality of lenses 4 on the first light-transmitting wall 11 may be changed, for example, the plurality of lenses 4 may be distributed along the first light-transmitting wall 11 in an equidistant array, when the light passes through the light-gathering airbag, the first light-transmitting wall 11 guides the light into the hollow cavity first, then the lenses 4 concentrate the light, the refractive index of the light concentrated by each lens 4 is the same, the plurality of lenses 4 concentrate the plurality of light beams to form parallel light with the same light parameter, and the plurality of parallel light passes through the second light-transmitting wall 12;

in addition, the user can distribute the plurality of lenses 4 according to the required light-emitting effect array, for example, the plurality of lenses 4 are arranged in a square array or a round array, so that the utilization rate of light emitted by the light-gathering air bag is improved, stray light pollution is avoided, and the light-emitting requirement is met.

Further, the plurality of lenses 4 includes a first lens and a second lens, the flexible cloth lamp 5 includes a first light source and a second light source, the first lens is configured to be disposed in one-to-one correspondence with the first light source of the flexible cloth lamp 5, the second lens is configured to be disposed in one-to-one correspondence with the second light source of the flexible cloth lamp 5, the first lens is different from the second lens, and the first light source is different from the second light source.

On the basis of the structure, the first transparent wall 11 is provided with a first lens and a second lens with different specifications, the first lens and the second lens have different parameters, the flexible cloth lamp 5 irradiates a first light source and a second light source with different colors or brightness, the first light source and the second light source respectively correspond to the lenses 4 with corresponding parameters, the light of the first light source irradiates the first lens, and the light of the second light source irradiates the second lens.

Thus, when the flexible cloth lamp 5 is provided with the light sources with multiple colors, the lenses 4 with different specifications on the first light-transmitting wall 11 can be in one-to-one correspondence, and after the lenses 4 with different specifications process the light sources with different colors, the light sources with different colors form the same light-emitting effect.

Further, referring to fig. 3, a mounting bracket is disposed at the bottom end of the lens 4, the lens 4 is fixedly connected to the mounting bracket, a mounting hole 60 is further disposed on the mounting bracket, a fastener 61 is disposed on the first transparent wall 11 corresponding to the mounting hole 60, and the fastener 61 penetrates through the first transparent wall 11 and is fixedly connected in the mounting hole 60.

On the basis of the above structure, when the lens 4 is mounted on the first light-transmitting wall 11, the lens 4 is fixedly mounted on the mounting bracket, then the mounting hole 60 is aligned with the fastening piece 61, and the fastening piece 61 is fixedly connected in the mounting hole 60, so that the operation of mounting the lens 4 on the first light-transmitting wall 11 can be completed. More specifically, the mounting hole 60 may be a threaded hole, and the fastener 61 may be a screw.

In this embodiment, the lens 4 is mounted on the mounting bracket, the mounting bracket is provided with the mounting hole 60, and then the mounting hole 60 on the mounting bracket on which the lens 4 is mounted is fixedly connected with the fastener 61 on the first transparent wall 11, instead of directly punching the lens 4, so that the lens 4 has a good protection effect.

Of course, the lens 4 may be mounted on the first light-transmitting wall 11 by bonding, hot stamping, or other methods, and a suitable mounting method may be selected according to the use condition of the lens 4.

Further, in order to better fix the lens 4 to the first transparent wall 11, the fastener 61 is provided with a limiting portion 611 and a clamping portion 612, the limiting portion 611 is disposed at the bottom end of the clamping portion 612, the clamping portion 612 is further provided with a sliding guiding inclined surface at one end far away from the limiting portion 611, and the sliding guiding inclined surface can guide the clamping portion 612 to be clamped in the mounting hole 60, so that the limiting portion 611 abuts against the first transparent wall 11.

On the basis of the above structure, when the mounting bracket is fixed to the first light-transmitting wall 11, the mounting hole 60 is in a blind state, at this time, the clamping portion 612 can be guided into the mounting hole 60 by the sliding guide slope on the clamping portion 612, after the clamping portion 612 is completely guided into the mounting hole 60, the limiting portion 611 abuts against the outer side of the first light-transmitting wall 11, and the lens 4 is fixed to the first light-transmitting wall 11.

In this embodiment, the clamping portion 612 is provided with a sliding guiding slope, so that the fastener 61 is smoother when being connected to the mounting hole 60, and the abutment of the limiting portion 611 and the first transparent wall 11 prevents the fastener 61 from being embedded into the light focusing air bag.

Further, in order to prevent moisture from entering the light condensation airbag through the hole of the first light-transmitting wall 11 from the fastener 61 to affect the light condensation effect, a gasket 62 is further disposed between the limiting portion 611 and the first light-transmitting wall 11, the gasket 62 is sleeved on the clamping portion 612, and the gasket 62 can be clamped between the limiting portion 611 and the first light-transmitting wall 11 after the clamping portion 612 is clamped to the mounting hole 60, so as to seal the first light-transmitting wall 11.

Before the fastening piece 61 is clamped into the mounting hole 60, the gasket 62 is sleeved on the clamping portion 612 of the fastening piece 61, when the clamping portion 612 is completely connected into the mounting hole 60, the gasket 62 is clamped between the limiting portion 611 and the first light-transmitting wall 11, the pressed and deformed portion of the gasket 62 is matched with the fastening piece 61 to seal the first light-transmitting wall 11, the risk of water inflow after the lens 4 is fixed with the first light-transmitting wall 11 is reduced, and the gasket can be a waterproof elastic piece.

Further, referring to fig. 4, a first connecting member 71 is disposed inside the light gathering airbag, the first connecting member 71 may be uniformly distributed on the light shielding wall 3, one end of the first connecting member 71 is connected to the first light transmitting wall 11, the other end is connected to the second light transmitting wall 12, the first light transmitting wall 11 and the second light transmitting wall 12 may be stretched at two ends after the light gathering airbag is inflated, so that the light gathering airbag may maintain a three-dimensional shape, and the first connecting member 71 may be further stored between the first light transmitting wall 11 and the second light transmitting wall 12 along with the light shielding wall 3 after the light gathering airbag is exhausted and compressed.

When the first connecting members 71 are installed, a plurality of first connecting members 71 with the same length are selected, one end of the first connecting member 71 can be connected to the first light-transmitting wall 11, the other end is connected to the second light-transmitting wall 12, and then the main body part of the first connecting member 71 is connected to the light-shielding wall 3, so that when the light-gathering airbag is inflated, the stretching effect of the first connecting members 71 with the same length is the same, and the three-dimensional shape of the light-gathering airbag light-shielding wall 3 can be commonly maintained. When the light collecting airbag is stored, the first connection member 71 may be folded together with the light shielding wall 3 and stored between the first light transmitting wall 11 and the second light transmitting wall 12, and then further folded the first light transmitting wall 11 and the second light transmitting wall 12.

In this embodiment, the connecting members with the same length are arranged in the light gathering airbag, and when the light gathering airbag is inflated, the connecting members with the same length can support the interior of the light gathering airbag, so that deformation of the light shielding wall 3 due to self gravity when the light shielding wall is enclosed with the first light transmitting wall 11 and the second light transmitting wall 12 can be effectively avoided.

Further, in order to maintain the three-dimensional shape of the condensing airbag while not affecting the folding and storage of the condensing airbag, the first connecting member 71 may be a flexible rope, suction cups are respectively provided at both ends of the flexible rope, and the flexible rope is adsorbed to the condensing airbag by the suction cups, specifically, may be a white or transparent flexible rope in order not to affect the light emitting effect.

When the flexible rope is arranged on the shading wall 3, the suckers at two ends of the flexible rope can be respectively arranged on the first light-transmitting wall 11 and the second light-transmitting wall 12. When the light gathering air bag is inflated, the sucking discs at two ends of the flexible rope are stretched by the internal gas, so that the light gathering air bag keeps a three-dimensional shape, and the installation mode of the sucking discs is simple and reliable to operate.

Under other conditions, the connecting member can be realized by adopting other structures such as plastic sheets, if the plastic sheets are adopted, two ends of each plastic sheet are hinged with the first light-transmitting wall 11 and the second light-transmitting wall 12 respectively, and as the two ends of each plastic sheet and the first light-transmitting wall 11 and the second light-transmitting wall 12 keep a free rotation state, the plastic sheets can be pulled up by the tensile force generated in the inflation process when the inside of the light-gathering air bag is inflated, so that a supporting effect is formed inside the light-gathering air bag. After the inside gassing of spotlight gasbag, the plastic piece can rotate to the state of accomodating with spotlight gasbag laminating along with the extrusion of gas. Other materials known in the art such as (elastic film, etc.) may be used for the particular attachment member.

Further, in order to improve the light utilization rate, a reflective layer may be disposed on a side of the light shielding wall 3 located in the hollow cavity, where the reflective layer may receive the light guided into the hollow cavity by the first light-transmitting wall 11, and reflect the light to pass through the second light-transmitting wall 12.

Thus, when the condensing air bag is used for condensing light, the light firstly penetrates from the first light-transmitting wall 11, a part of light forms parallel light beams through the centralization action of the lens 4, the other part of light diverges to the reflecting layer of the shading wall 3, the reflecting layer reflects the light to the second light-transmitting wall 12, at the moment, the light reflected by the reflecting layer and the parallel light centralizing by the multibeam lens 4 are emitted out of the condensing air bag from the second light-transmitting wall 12 together, and the reflecting layer reflects the light, so that the light utilization rate is improved, and the brightness of the centralized light is higher.

Further, in order to prevent the light emitted by the light gathering airbag from being too glaring, a grid mesh may be further disposed on the second light transmitting wall 12, and a plurality of grid holes are disposed on the grid mesh, and after the light is softened by the plurality of grid holes, the light may be guided out of the hollow chamber through the plurality of grid holes.

Specifically, a plurality of grid holes may be formed in the second light-transmitting wall 12, or a layer of grid gauze is sleeved on a side, away from the hollow cavity, of the second light-transmitting wall 12, or a transparent adhesive tape or the like is used to adhere to the second light-transmitting wall 12, so that when light passes through the second light-transmitting wall 12, the light is weakened and softened after being processed by the grid holes or the like.

In the case of example 2,

unlike embodiment 1, this embodiment provides a lighting device, including the light gathering airbag of embodiment 1 and the flexible cloth lamp 5, the periphery of the flexible cloth lamp 5 is provided with a first connecting piece, one side of the first light-transmitting wall 11 facing away from the hollow cavity is correspondingly provided with a second connecting piece, and the flexible cloth lamp 5 and the light gathering airbag are detachably connected with the second connecting piece through the first connecting piece.

When the lighting equipment is used, the light of the flexible cloth lamp 5 can be collected through the light collecting air bag, specifically, when the light collecting air bag is used for collecting the light of the flexible cloth lamp 5, the lenses 4 on the light collecting air bag can be arranged one by one according to the lamp beads on the flexible cloth lamp 5, for example, the lenses 4 with corresponding specifications can be selected according to the light emitting colors of the lamp beads, the light collecting air bag is prevented from emitting the light with mixed colors, and then the first connecting piece on the periphery of the flexible cloth lamp 5 is connected with the second connecting piece corresponding to the first light transmitting wall 11, so that the lamp beads on the flexible cloth lamp 5 are in one-to-one correspondence with the lenses 4.

In the above-mentioned scheme, the large tracts of land light source of flexible cloth lamp 5 can obtain the light that center illuminance is high through spotlight gasbag to if need carry in short-term use can also fold together and accomodate, it is very convenient.

Further, the first connecting piece can be a first magic tape, the second connecting piece is a second magic tape, and the flexible cloth lamp 5 and the light gathering air bag are adhered to each other through the first magic tape and the second magic tape, so that the installation and the disassembly processes are more convenient. Of course, the detachable connection of the flexible cloth lamp 5 and the condensing air bag can also adopt a magnetic attraction and zipper connection mode.

It will be apparent to those skilled in the art from this disclosure that various other changes and modifications can be made which are within the scope of the utility model as defined in the appended claims.

Claims (12)

1. The condensing air bag is characterized in that the condensing air bag is used for forming a hollow cavity after being inflated, the hollow cavity is provided with a first light-transmitting wall (11), a second light-transmitting wall (12) and a shading wall (3), and the hollow cavity is formed after the first light-transmitting wall (11), the second light-transmitting wall (12) and the shading wall (3) are mutually enclosed; the first light-transmitting wall (11) is used for guiding light to be guided into the hollow cavity, the first light-transmitting wall (11) is provided with a lens (4), and the lens (4) is used for concentrating the light guided by the first light-transmitting wall (11); the second light-transmitting wall (12) is used for guiding out the light concentrated by the lens (4); the shading wall (3) is used for shading light which is led into the hollow cavity from the first light-transmitting wall (11) from penetrating out of the shading wall (3); the condensing air bag is provided with an air charging nozzle, and the condensing air bag can form the hollow cavity when being filled with air and can be folded and stored after being exhausted.

2. The condensing airbag according to claim 1, wherein a plurality of lenses (4) are provided, the lenses (4) are distributed on the first light-transmitting wall (11) in an equidistant array, and the lenses are used for being arranged in one-to-one correspondence with the light sources of the flexible cloth lamps (5).

3. The condensing airbag according to claim 1, characterized in that the lenses (4) are provided in plurality, the plurality of lenses (4) comprises a first lens and a second lens, the first lens is different from the second lens, and the first lens is used for being arranged in one-to-one correspondence with a first light source of the flexible cloth lamp (5); the second lenses are arranged in one-to-one correspondence with the second light sources of the flexible cloth lamps (5), and the first light sources are different from the second light sources.

4. The condensing airbag according to claim 1, characterized in that the bottom end of the lens (4) is provided with a mounting bracket, and the mounting bracket is provided with a mounting hole (60); the first light-transmitting wall (11) is provided with a fastener (61), and the fastener (61) penetrates through the first light-transmitting wall (11) and is fixedly connected in the mounting hole (60) so that the lens (4) is mounted on the first light-transmitting wall (11).

5. The condensing airbag according to claim 4, characterized in that the fastening member (61) is provided with a limiting portion (611) and a clamping portion (612), and the limiting portion (611) is provided at the bottom end of the clamping portion (612); one end of the clamping part (612) far away from the limiting part (611) is provided with a sliding guide inclined surface, and the sliding guide inclined surface is used for guiding the clamping part (612) to be fixedly connected in the mounting hole (60) so that the limiting part (611) abuts against the first light-transmitting wall (11).

6. The condensing airbag according to claim 5, characterized in that a gasket (62) is further arranged between the limiting portion (611) and the first light-transmitting wall (11), and the gasket (62) is sleeved on the clamping portion (612); the gasket (62) is used for being clamped between the limiting part (611) and the first light-transmitting wall (11) after the clamping part (612) is clamped to the mounting hole (60) so as to seal the first light-transmitting wall (11).

7. The condensing airbag according to claim 1, wherein a first connecting member (71) is disposed inside the condensing airbag, one end of the first connecting member (71) is connected to the first light-transmitting wall (11), the other end is connected to the second light-transmitting wall (12), the first connecting member (71) is used for maintaining a three-dimensional shape after the condensing airbag is inflated, and the condensing airbag can be accommodated between the first light-transmitting wall (11) and the second light-transmitting wall (12) after being exhausted and compressed.

8. A condensation balloon according to claim 7, wherein the first connecting member (71) is a flexible cord; the two ends of the flexible rope are respectively provided with a sucker, and the flexible rope is arranged on the condensation air bag through the suckers.

9. A condensation airbag according to claim 1, wherein the light shielding wall (3) is provided with a reflective layer on one side of the hollow chamber, the reflective layer being adapted to receive light directed into the hollow chamber by the first light transmitting wall (11) and reflect the light so that the light passes out of the second light transmitting wall (12).

10. The condensing airbag of any of claims 1-9, wherein the lens is one of a plano-convex lens, a fly-eye lens, a fresnel lens; a grid net is arranged on the second light-transmitting wall (12), and a plurality of grid holes are formed in the grid net; the plurality of mesh holes are used for guiding light of the hollow cavity to be led out.

11. A lighting device comprising a spotlight balloon according to any of claims 1-10, characterized in that it further comprises a flexible cloth lamp (5), wherein a first connecting piece is arranged on the periphery of the flexible cloth lamp (5), a second connecting piece is correspondingly arranged on one side of the first light-transmitting wall (11) facing away from the hollow chamber, and the first connecting piece is detachably connected with the second connecting piece so that the flexible cloth lamp (5) is detachably connected with the spotlight balloon.

12. A lighting device as recited in claim 11, wherein: the first connecting piece is a first magic tape, the second connecting piece is a second magic tape, and the first magic tape is stuck with the second magic tape so that the flexible cloth lamp (5) is detachably connected with the condensing air bag.

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