Visible light communication transmitting head

Abstract

The utility model relates to the technical field of visible light communication, and discloses a visible light communication emission head, which comprises a reflection cup, the reflection cup comprises an inner cavity with a gradually increased opening, and the surface of the inner cavity is provided with a reflection layer; the light source is arranged at one end, with a narrower opening, of the inner cavity; the first convex lens is arranged at one end of the reflection cup and covers the light source; the second convex lens is arranged at the other end of the reflection cup; light emitted by the light source sequentially penetrates through the first convex lens, the inner cavity and the second convex lens and then irradiates outwards. The utility model aims to provide the visible light communication transmitting head which is compact in structure, low in cost, long in transmission distance and suitable for long-time operation.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of visible light communication, specifically relates to a visible light communication transmitting head. BACKGROUND

[0002] The visible light communication transmitting head is a common device for signal transmission by using light wave signals, and is widely applied to fields such as remote control operation of pool robots, underwater detection, military communication, etc. When used in fields such as remote control operation of pool robots and underwater detection, the transmitting head needs to overcome the different propagation characteristics of water surface and underwater medium, and realizes the transmission of cross-medium signals by light wave frequency modulation. However, the turbidity, depth, salinity and other factors of water will have a great influence on the propagation of light, especially in seawater, the transmission distance of light wave is usually very short, and the ordinary transmitting head is difficult to meet the use demand of long distance; and the underwater equipment usually needs to run for a long time, the design of the transmitting head needs to consider power consumption and efficiency to ensure that the system can work stably for a long time, which will lead to high cost of the transmitting head, directly affecting the market price, reducing the acceptance of ordinary consumers or small and medium-sized enterprises; in addition, in order to cope with strong signal attenuation and adapt to different environments, the transmitting head needs a larger size or uses heavier materials, which further increases the cost and also affects the portability and operation convenience of the transmitting head. SUMMARY

[0003] The utility model discloses a visible light communication transmitting head with compact structure, low cost, long transmission distance and suitable for long time operation.

[0004] To solve the above technical problems, the utility model provides a technical scheme: a visible light communication transmitting head, which comprises a reflecting cup, the reflecting cup comprises an inner cavity with gradually increasing opening, and the surface of the inner cavity is provided with a reflecting layer; a light source is arranged at one end of the inner cavity with a relatively narrow opening; a first convex lens is arranged at one end of the reflecting cup and covers the outside of the light source; a second convex lens is arranged at the other end of the reflecting cup; and the light emitted by the light source is sequentially transmitted through the first convex lens, the inner cavity and the second convex lens and then irradiated outward.

[0005] Further, the inner cavity has a conical structure, and the reflecting layer is an aluminum alloy coating.

[0006] Further, the light source comprises a lamp panel and lamp beads mounted on the lamp panel, and the lamp beads are LED lamp beads.

[0007] Further, the periphery of the lamp bead is provided with a fixing seat, one end of the first convex lens is provided with a connecting part, and the connecting part is connected to the fixing seat.

[0008] Further, the outer surface of the fixing seat is cylindrical, and the connecting part is connected with the outer surface of the fixing seat through threads.

[0009] Further, the lamp plate is fixed at one end of the light cup through the first end cover.

[0010] Further, the second convex lens is fixed at the other end of the light cup through the second end cover.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] 1. The utility model discloses a double lens structure of first convex lens and second convex lens is arranged on the light cup, which adjusts the form of light beam, enhances the directionality of light beam, focuses the light beam emitted by the light source into a smaller angle, strengthens the illumination intensity, so that the light wave can be transmitted for a longer distance.

[0013] 2. The utility model discloses the inner cavity of the light cup with gradually increasing opening guides the light from the center point to a larger area, and the conical geometric shape helps to further optimize the light propagation path, and the reflection of the reflecting layer can effectively reduce the loss of light, thereby reducing the consumption of energy, so that the emission head can meet the demand of long time operation.

[0014] 3. The utility model discloses a main body structure is composed of the light cup and the first convex lens and the second convex lens and other parts installed at both ends, so that the emission head has simple and compact overall structure and low cost. DRAWINGS

[0015] Fig. 1 It is a structure schematic diagram of the visible light communication emission head.

[0016] Fig. 2 It is a sectional view of the visible light communication emission head.

[0017] Fig. 3 It is an explosion view of the visible light communication emission head.

[0018] Wherein: 1 - light cup, 11 - inner cavity, 12 - reflecting layer, 2 - first convex lens, 21 - connecting part, 3 - fixing seat, 4 - first end cover, 5 - lamp plate, 6 - lamp bead, 7 - second convex lens, 8 - second end cover. DETAILED DESCRIPTION

[0019] In order to explain the technical features and the purposes and effects realized by the utility model, the utility model is further explained in detail in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model, and are not used to limit the utility model.

[0020] Please refer to the attached drawings Figs. 1-3 A visible light communication transmitting head, comprising a reflecting cup 1, the reflecting cup 1 comprising an inner cavity 11 with gradually increasing opening, the surface of the inner cavity 11 having a reflecting layer 12; a light source arranged at the end of the inner cavity 11 with narrower opening; a first convex lens 2 arranged at one end of the reflecting cup 1 and covering the outside of the light source; a second convex lens 7 arranged at the other end of the reflecting cup 1; the light emitted by the light source passes through the first convex lens 2, the inner cavity 11 and the second convex lens 7 in turn and is irradiated outward.

[0021] In the above embodiment, the first convex lens 2 is used to refract the light emitted by the light source, change the propagation direction and / or distribution of the light, so as to adjust the shape of the light beam, and the second convex lens 7 is used to enhance the directionality of the light beam, focus the light emitted by the light source into a smaller angle, and improve the concentration of the light beam and the illumination intensity. In the working process, the first convex lens 2 first refracts the light emitted by the light source, changes the shape and / or distribution of the light beam, and converts the light rays from a relatively dispersed state into a light beam with better directionality, thereby realizing a certain degree of light beam focusing, and the second convex lens 7 further focuses or adjusts the light rays, changes the path of the light rays through the double-lens structure composed of the first convex lens 2 and the second convex lens 7, makes the light beam more concentrated, reduces the scattering and diffusion of the light, and can ensure that the light rays are irradiated at the required angle and intensity, so that the light wave can meet the transmission requirement of a longer distance. The inner cavity 11 with gradually increasing opening in the reflecting cup 1 can guide the light rays from the center point to a larger area and concentrate in the transmission direction, thereby reducing unnecessary scattering, and the reflecting effect of the reflecting layer 12 can effectively reduce the loss of light, so that the originally scattered light rays can be reflected back, thereby enhancing the light efficiency of the transmitting head, improving the overall illumination brightness, and relatively reducing the energy consumption, thereby meeting the requirement of long-time operation of the transmitting head. In addition, the reflecting layer 12 can also help to uniformly distribute the light rays and improve the uniformity of the light spot, thereby avoiding the generation of hot spots or uneven illumination effect. The overall structure of the transmitting head is composed of the reflecting cup 1 and the first convex lens 2, the light source and the second convex lens 7 arranged at both ends of the reflecting cup 1, so that the overall structure of the transmitting head is simple, compact and low in cost.

[0022] Based on the above embodiment, the inner cavity 11 has a conical structure, which helps to optimize the propagation path of the light, so that the light rays can be more effectively irradiated to the target area, and the reflecting layer 12 is an aluminum alloy coating to improve the reflecting efficiency of the reflecting layer 12. Since aluminum alloy has high reflectivity in the visible light range, it has good reflecting effect. In addition, the aluminum alloy coating can also avoid oxidation and improve durability, thereby further meeting the requirement of long-time operation of the transmitting head.

[0023] Based on the above embodiment, the light source comprises a lamp plate 5 and lamp beads 6 mounted on the lamp plate 5, the lamp beads 6 are LED lamp beads, wherein the lamp plate 5 is used for controlling the lamp beads 6, and the use of the LED lamp beads can further reduce the power consumption and cost of the emitting head and prolong the service life of the emitting head.

[0024] Based on the above embodiment, the periphery of the lamp bead 6 is provided with a fixing seat 3, one end of the first convex lens 2 is provided with a connecting part 21, and the connecting part 21 is connected to the fixing seat 3.

[0025] Based on the above embodiment, the outer surface of the fixing seat 3 is in a cylindrical shape, and the connecting part 21 is connected to the outer surface of the fixing seat 3 through threads, so that the first convex lens 2 is convenient to disassemble and assemble, and the production and maintenance efficiency is improved.

[0026] Based on the above embodiment, the lamp plate 5 is fixed at one end of the light cup 1 through a first end cover 4, for example, a stepped hole can be formed at the end of the light cup 1 to position the lamp plate 5, so that the mounting efficiency of the lamp plate 5 is improved, and the first end cover 4 and the light cup 1 can be connected through internal and external threads to simplify the structure and improve the mounting efficiency.

[0027] Based on the above embodiment, the second convex lens 7 is fixed at the other end of the light cup 1 through a second end cover 8, for example, a stepped hole can be formed at the end of the light cup 1 to position the second convex lens 7, so that the mounting efficiency of the second convex lens 7 is improved, and the second end cover 8 and the light cup 1 can be connected through internal and external threads to further simplify the structure and improve the mounting efficiency.

[0028] The above describes the present application and its embodiments in detail, which is not limited, and the drawings only show some embodiments of the present application, and the actual structure is not limited thereto. Those skilled in the art can make various modifications, improvements and substitutions based on the above description without departing from the concept of the present application, and these should all fall within the protection scope of the present application.

Claims

1. A visible light communication transmitter head, characterized by, The application relates to a light cup and a light source. The light cup comprises an inner cavity with an opening gradually increasing, and the surface of the inner cavity is provided with a light-reflecting layer. A light source is arranged at one end of the inner cavity with a narrow opening. A first convex lens is arranged at one end of the light cup and covers the outside of the light source. A second convex lens is arranged at the other end of the light cup. The light emitted by the light source passes through the first convex lens, the inner cavity and the second convex lens in sequence and is irradiated outward.

2. The visible light communication transmitter head of claim 1, wherein: The inner cavity is in a conical structure, and the light-reflecting layer is an aluminum alloy coating. 3.The VLC transmitter of claim 1, wherein: The light source comprises a lamp plate and lamp beads mounted on the lamp plate, and the lamp beads are LED lamp beads.

4. The VLC transmitter of claim 3, wherein: The periphery of the lamp bead is provided with a fixing seat, one end of the first convex lens is provided with a connecting part, and the connecting part is connected to the fixing seat.

5. The VLC transmitter of claim 4, wherein: The outer surface of the fixing seat is in a cylindrical shape, and the connecting part is connected to the outer surface of the fixing seat through threads.

6. The VLC transmitter of claim 3, wherein: The lamp plate is fixed at one end of the light cup through a first end cover.

7. The VLC transmitter of claim 1, wherein: The second convex lens is fixed at the other end of the light cup through a second end cover.

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