Double-end air column lamp

Abstract

The utility model belongs to the technical field of photographic equipment, and particularly relates to a double-end air column lamp which comprises an air column and a light source, an air inflation cavity is formed in the air column, and mounting parts are arranged at the two ends of the air column; the two light sources are arranged on the mounting parts located at the two ends of the air column correspondingly and used for emitting light into the air column, and the light is emitted out through the inflation cavity. The method has the effect of avoiding obvious brightness reduction of the far end of the air column caused by light propagation attenuation.

Description

Technical Field

[0001] This utility model relates to the technical field of photographic and video equipment, specifically a dual-head gas column lamp. Background Technology

[0002] With the development of the information age, people's demand for photography and videography is increasing. In the current photography and videography process, various soft light equipment is often needed. As a new type of soft light equipment, the air column light is gradually becoming more popular in the market due to its good soft light performance, portability, and simple operation.

[0003] Existing gas column lights typically have their light source located at one end of the gas column. The light emitted by the light source is directed into the gas column and then emitted as soft light through the air bladder inside the column. As a result, the end of the gas column furthest from the light source will experience light loss during propagation, leading to a significant decrease in brightness at that end. This results in poor light emission and negatively impacts the user experience.

[0004] Therefore, existing technologies need to be improved. Utility Model Content

[0005] To address the shortcomings of existing technologies, this application proposes a dual-head gas column lamp.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows:

[0007] A dual-headed air column lamp includes an air column and a light source. The air column has an inflation chamber inside and mounting parts at both ends. The light source is provided in two sets, which are respectively located at the mounting parts at both ends of the air column. The light source is used to shine light into the air column and emit it through the inflation chamber.

[0008] Preferably, the air column includes an inner column membrane, an outer column membrane, and a light-shielding membrane. The outer column membrane and the inner column membrane are arranged in a tubular shape. The inner column membrane is transparent. The two ends of the inner column membrane serve as mounting portions for mounting the light source. The outer column membrane is a diffuser membrane. The outer column membrane is spaced and sleeved on the inner column membrane. Two light-shielding membranes are provided, and the two light-shielding membranes respectively connect the two ends of the inner column membrane and the outer column membrane to form an annular and sealed air-filled cavity.

[0009] Preferably, a reflective layer is provided on one side of the light-shielding film in the air-filled cavity.

[0010] Preferably, the air column includes a column body and a light-transmitting membrane. The column body is tubular, and the sidewall of the column body is a light-diffusing membrane. Two sets of the light-transmitting membrane are provided at the two ends of the column body to form a sealed air-filled cavity. The two ends of the column body serve as the mounting portion for mounting the light source.

[0011] Preferably, the light source includes a lamp and a reflector cup. The reflector cup is horn-shaped with open ends and a hollow interior. The two ends of the reflector cup are a large end and a small end, respectively. The lamp is disposed at the small end of the reflector cup. The large end of the reflector cup is connected to the mounting part. The light emitted by the lamp is incident on the air column through the reflector cup.

[0012] Preferably, the air column includes an air nozzle, which is connected to the inflation chamber for inflating and deflating the inflation chamber.

[0013] Preferably, from the perspective of the length of the air column, the cross-sectional area of ​​the inflation chamber located in the middle is larger than the cross-sectional area located at both ends.

[0014] Preferably, the inner diameter of the inner column membrane gradually decreases near the center.

[0015] Preferably, the inner diameter of the column gradually decreases near the middle.

[0016] In summary, this application includes the following beneficial technical effects:

[0017] When using a dual-headed air column light, the light sources at both ends of the air column will simultaneously shine light into it. The light from both ends can enter the inner cavity of the air column through the mounting part, pass through the inflation chamber, and then diffuse to the surrounding area of ​​the column through the outermost diffuser film. The dual-headed light source can reduce the problem of significant brightness reduction at the far end of the air column due to light propagation attenuation, and is especially suitable for long air column lights. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is an overall schematic diagram of the dual-head gas column lamp in this application;

[0020] Figure 2 This is a cross-sectional view of the air column in Example 1;

[0021] Figure 3This is an exploded view of the dual-head gas column lamp in Example 1;

[0022] Figure 4 This is an exploded view of the dual-head gas column lamp in Example 2;

[0023] Figure 5 This is a schematic diagram of one type of air column in this application.

[0024] Figure 6 This is a schematic diagram of another form of air column in this application.

[0025] Explanation of reference numerals in the attached drawings: 1. Air column; 11. Inflation chamber; 12. Mounting part; 131. Inner cylindrical membrane; 132. Outer cylindrical membrane; 133. Light-shielding membrane; 141. Column; 142. Light-transmitting membrane; 2. Light source; 21. Lamp; 22. Reflector; 221. Large opening end; 222. Small opening end; 3. Air nozzle. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0027] This application discloses a dual-head gas column lamp.

[0028] Reference Figures 1 to 6 A dual-headed air column lamp includes an air column 1 and a light source 2. Specifically, the air column 1 is in the shape of a long column. An inflation chamber 11 is provided inside the air column 1. The outer surface of the inflation chamber 11 is made of a soft-light TPU film. Mounting parts 12 are provided at both ends of the air column 1. Two sets of light sources 2 are provided. The two sets of light sources 2 are respectively set at the mounting parts 12 at both ends of the air column 1 so that the light emitted by the light source 2 can enter the interior of the air column 1 and be emitted through the inflation chamber 11.

[0029] Reference Figure 1 and Figure 2The light source 2 includes a lamp 21 and a reflector 22. The reflector 22 has a trumpet-shaped structure with open ends and a hollow interior. The lamp 21 is located at the small end 222 of the reflector 22. The lamp 21 includes a lamp board (not shown in the figure) and multiple LEDs mounted on the lamp board. The LEDs can be cool white LEDs, warm white LEDs, neutral white LEDs, RGB LEDs, yellow LEDs, amber LEDs, cyan LEDs, or mixed LEDs with two, three, four, five, or more colors. The light from the LEDs will be emitted from the small end 222 of the reflector 22 to the large end 221, and then enter the air column 1 through the mounting part 12. That is, the inner wall of the reflector 22 is in a smooth inclined state when viewed along the extension direction. The inclined surface of the reflector 22 reflects as much light as possible to the large end 221 of the reflector 22 to improve the light utilization rate.

[0030] Reference Figure 1 and Figure 2 In some embodiments, an air nozzle 3 is also provided on the air column 1. The air nozzle 3 is connected to the inflation chamber 11 inside the air column 1. The inflation chamber 11 is inflated and deflated through the air nozzle 3. Different gases can be filled into the inflation chamber 11 through the air nozzle 3 to meet the different light-emitting needs of the air column 1 lamp, thereby expanding the applicability of the air column 1 lamp. After the air column 1 lamp is used up, the gas in the inflation chamber 11 can be discharged through the air nozzle 3 to facilitate the storage of the air column 1 lamp.

[0031] Example 1

[0032] Reference Figure 2 and Figure 3In some embodiments, the air column 1 includes an inner cylindrical membrane 131, an outer cylindrical membrane 132, and a light-shielding membrane 133. Specifically, the inner cylindrical membrane 131 is elongated and tubular, and in this embodiment, its cross-section is circular when viewed from one end. The interior of the inner cylindrical membrane 131 is hollow, and the two ends of the inner cylindrical membrane 131 serve as mounting portions 12 for the air column 1. The inner cylindrical membrane 131 is transparent. The outer cylindrical membrane 132 is also elongated and tubular, with the same length as the inner cylindrical membrane 131. The outer cylindrical membrane 132 is coaxially spaced and fitted onto the outer wall of the inner cylindrical membrane 131. The outer cylindrical membrane 132 is a light-diffusing film, which softens the light after it passes through it. The air nozzle 3 is installed on the outer wall of the outer cylindrical membrane 132. The light-shielding membrane 133 is made of materials such as black TPU film. The light-shielding film 133 is arranged in a ring. Two sets of light-shielding films 133 are respectively set at the two ends of the inner cylindrical film 131 and the outer cylindrical film 132, and the same end of the inner cylindrical film 131 and the outer cylindrical film 132 are connected so that the outer side wall of the inner cylindrical film 131, the inner side wall of the outer cylindrical film 132 and the light-shielding film 133 form an annular and sealed cavity, namely the inflation chamber 11. In this embodiment, the reflector cup 22 on the light source 2 is inserted into the opening of the inner cylindrical film 131. When the inflation chamber 11 is inflated, the large opening end 221 of the reflector cup 22 is tightly fitted with the inner side wall of the inner cylindrical film 131. When the air column lamp 1 is used, the light emitted by the lamp bead enters the inner cylindrical film 131 through the large opening end 221 of the reflector cup 22, enters the inflation chamber 11 through the inner cylindrical film 131, and then diffuses to the surrounding area of ​​the column through the outer cylindrical film 132.

[0033] In this embodiment, a reflective layer is provided on one side wall of the light-shielding film 133 located in the inflation cavity 11. When light passes through the inner cylindrical film 131 and enters the inflation cavity 11, the reflective layer can reflect the light on the light-shielding film 133 back to the outer cylindrical film 132, thereby further improving the utilization rate of the optical fiber.

[0034] Reference Figures 2 to 6 In this embodiment, from the direction of the tube opening of the outer cylindrical membrane 132, the inner diameter of the outer cylindrical membrane 132 gradually increases towards the center. From the outer wall of the outer cylindrical membrane 132, the center of the outer cylindrical membrane 132 is convex, that is, the cross-sectional area of ​​the air chamber 11 in the center is larger than the cross-sectional area at both ends. Therefore, the air column 1 experiences greater buoyancy in the center, which can reduce the tendency of the central area to sag when placed horizontally due to its own weight.

[0035] In this embodiment, viewed from the opening direction of the inner cylindrical membrane 131, the inner diameter of the inner cylindrical membrane 131 gradually decreases towards its center. Viewed from the outer wall of the inner cylindrical membrane 131, the center of the outer cylindrical membrane 132 is recessed. That is, the cross-sectional area of ​​the inner cylindrical membrane 131 in the center is smaller than that at both ends. Therefore, when the light source 2 shines light into the inner cylindrical membrane 131, the parallel light is reflected by the inclined surface of the inner wall of the inner cylindrical membrane 131 and converged towards the central area. When the light emission power of the light sources 2 at both ends is low, the light distribution is centrally reinforced by the structure of the column itself, making the overall light emission of the column more uniform.

[0036] Example 2

[0037] Reference Figure 3 The air column 1 includes a column body 141 and a light-transmitting membrane 142. The column body 141 is a long tube and is made of TPU soft light film. The two ends of the column body 141 serve as the mounting parts 12 for mounting the light source 2. The light-transmitting membrane 142 is made of transparent TPU film. There are two sets of light-transmitting membranes 142. The two sets of light-transmitting membranes 142 are respectively set at the two ends of the column body 141 by ultrasonic welding or other methods to form a sealed air cavity 11. That is, the air cavity 11 is the internal space of the column body 141. The reflector cup 22 is installed by snap-fit ​​or adhesive. The air nozzle 3 is installed on the outer wall of the column body 141. The light emitted by the light source 2 passes through the light-transmitting membrane 142 and enters the air cavity 11. Finally, the soft light is emitted through the column body 141.

[0038] Reference Figures 3 to 6 In this embodiment, from the length direction of the column 141 itself, the inner diameter of the column 141 gradually increases towards the middle of itself. From the outer wall of the column 141, the middle of the column 141 is convex, that is, the cross-sectional area of ​​the air chamber 11 at the middle position is increased, which can accommodate more gas to improve buoyancy and prevent the air column 1 from drooping in the middle.

[0039] The structure of column 141 can also be as follows: the inner radial direction gradually decreases towards the center of the column. From the outer wall of column 141, the center of column 141 is concave. That is, the cross-sectional area of ​​the inner wall of column 141 in the center is smaller than that at both ends. Therefore, when light source 2 shines light into the interior of column 141, the parallel light emitted by light source 2 is reflected by the inclined surface of the inner wall of column 141 and converged towards the central area. When the light emission power of light source 2 at both ends is low, the structure of column 141 itself provides central reinforcement for the light distribution, making the overall light emission of column 141 more uniform.

[0040] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A double-headed gas column lamp, characterized in that: include: An air column, which has an inflation chamber inside, and mounting parts are provided at both ends of the air column; The light source is provided in two sets, which are respectively located at the mounting parts at both ends of the air column. The light source is used to shoot light into the air column and shoot it out through the inflation chamber.

2. The dual-head gas column lamp according to claim 1, characterized in that: The air column includes an inner column membrane, an outer column membrane, and a light-shielding membrane. The outer column membrane and the inner column membrane are arranged in a tubular shape. The inner column membrane is transparent. The two ends of the inner column membrane serve as mounting parts for mounting the light source. The outer column membrane is a diffuser membrane. The outer column membrane is spaced out from the inner column membrane. There are two light-shielding membranes. The two light-shielding membranes connect the two ends of the inner column membrane and the outer column membrane respectively to form an annular and sealed air chamber.

3. The dual-head gas column lamp according to claim 2, characterized in that: The light-shielding film has a reflective layer on one side of the inflation cavity.

4. The dual-head gas column lamp according to claim 1, characterized in that: The air column includes a column body and a light-transmitting membrane. The column body is tubular, and the sidewall of the column body is a light-diffusing membrane. Two sets of the light-transmitting membrane are provided at the two ends of the column body to form a sealed air-filled cavity. The two ends of the column body serve as the mounting parts for mounting the light source.

5. The dual-head gas column lamp according to claim 1, characterized in that: The light source includes a lamp and a reflector cup. The reflector cup is horn-shaped with open ends and a hollow interior. The two ends of the reflector cup are a large end and a small end, respectively. The lamp is located at the small end of the reflector cup. The large end of the reflector cup is connected to the mounting part. The light emitted by the lamp is directed into the air column through the reflector cup.

6. The dual-head gas column lamp according to claim 1, characterized in that: The air column includes an air nozzle, which is connected to the inflation chamber for inflating and deflating the inflation chamber.

7. The dual-head gas column lamp according to claim 2 or 4, characterized in that: From the perspective of the length of the air column, the cross-sectional area of ​​the air chamber located in the middle is larger than that located at both ends.

8. The dual-head gas column lamp according to claim 2, characterized in that: The inner diameter of the inner cylindrical membrane gradually decreases near the middle.

9. The dual-head gas column lamp according to claim 4, characterized in that: The inner diameter of the column gradually decreases near the middle.

Images