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Receiving end miniaturization-oriented visible light communication biconvex lens antenna and design method thereof

A technology of visible light communication and biconvex lens, which is applied in the field of optical antenna and visible light communication, and can solve the problems of complex system structure, difficulty in miniaturization, and excessive imaging size.

Active Publication Date: 2021-05-07
UNIV OF SCI & TECH OF CHINA
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the optical system based on dichroic mirrors needs to use multiple dichroic mirrors and convex lenses. Large size restricts the miniaturization of the receiving end

Method used

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  • Receiving end miniaturization-oriented visible light communication biconvex lens antenna and design method thereof
  • Receiving end miniaturization-oriented visible light communication biconvex lens antenna and design method thereof
  • Receiving end miniaturization-oriented visible light communication biconvex lens antenna and design method thereof

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Embodiment

[0036] One of the candidates for high-speed visible light communication is parallel visible light communication based on multi-color multiplexing. However, the existing communication systems face many challenges such as high system complexity and large size. In this embodiment, a dual-lens-based The optical imaging system, by selecting a lens combination with reasonable parameters and adjusting the position parameters, can form a narrow and clearly separated spot at the receiving end, which effectively solves the problem of system complexity and miniaturization. The block diagram of the optical system in the embodiment is as follows figure 2 As shown, the originating two-stage optical lens model is shown in Table 1.

[0037] Table 1

[0038] lens diameter / mm Focal length / mm shape model L1 45 32.1 spherical convex ACL4532U-A L2 75 100 plano-convex LA1238-A

[0039] In the implementation example, for the distance x between the first-st...

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Abstract

The invention discloses a receiving end miniaturization-oriented visible light communication biconvex lens antenna and a design method thereof. In a long-distance communication scene, through the combined design of a transmitting-end biconvex cascade lens antenna, clear separated light spots with small sizes are obtained at a receiving end, the light spots are converged at a receiving end and then are independently received, parallel transmission communication of multi-color and even same-color visible light can be realized, and the purpose of miniaturization of a high-speed visible light parallel communication system can be effectively achieved. Firstly, small-size separated light spots can be presented on a receiving end plane by utilizing a biconvex lens structure, so that the purpose of system miniaturization is achieved; secondly, the separated light spots are independently received, so that the use of an optical filter and a dichroscope is avoided, and the implementation complexity and cost of the system are effectively reduced; and thirdly, the object distance of a first-stage lens and the distance between the two-stage lens are subjected to parameter adjustment, so that the adjustment of the imaging size and the imaging position can be realized, and the system has higher robustness and can be well adapted to different communication occasions.

Description

technical field [0001] The invention relates to the technical field of visible light communication and the field of optical antennas, in particular to a visible light communication biconvex lens antenna and a design method thereof for terminal miniaturization. Background technique [0002] Visible light communication (visible light communication, VLC) uses the visible light spectrum to transmit data information. It meets the communication needs while taking into account the lighting needs. It has many advantages such as low construction cost, free from electromagnetic wave interference, no licensed spectrum and good confidentiality performance. Wireless transmission at a rate of up to Gbps has been achieved, and the LED-based high-efficiency lighting industry has developed rapidly. Visible light communication is expected to be widely used, so it has attracted widespread attention at home and abroad. [0003] A block diagram of an actual deployment of a visible light communic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q15/08
CPCH01Q15/08
Inventor 于子晨魏佳琦龚晨黄诺徐正元
Owner UNIV OF SCI & TECH OF CHINA
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