Adjustable compound eye structure optical receiver with visible light wireless communication large view field

Abstract

The invention provides an adjustable compound eye structure optical receiver with a visible light wireless communication large view field, which is formed by a compound eye lens, optical fibers, a photoelectric detector and a circuit system, which are connected in sequence, wherein the compound eye lens is formed by a micro-lens array and a base; the base is formed by four equal organic glass flat plates and a cross-shaped connecting shaft; the cross-shaped connecting shaft and the organic glass flat plates are connected to form a circular base in a rotating manner; a circular rolling bead is embedded into a central crossed part of the cross-shaped connecting shaft; the four organic glass flat plates can rotate around the cross-shaped connecting shaft in the horizontal direction or the vertical direction; the base is provided with a plurality of through holes and lenses embedded into the through holes; the first surface of each micro lens is a convex surface and the second surface of each micro lens is a plane and is connected with the end surface of the optical fiber; and the diameter of each micro-lens is slightly larger than that of the optical fiber. The adjustable compound eye structure optical receiver with the visible light wireless communication large view field has a large receiving view field and a high light transmission rate.

Description

technical field [0001] The invention relates to the field of optoelectronics, in particular to the optical fiber coupling and transmission problems at the receiving end of visible light communication. Background technique [0002] With the development of visible light wireless communication systems, higher requirements are placed on the performance of receivers. The receiving end needs to have the characteristics of miniaturization, large field of view, high signal-to-noise ratio, and light weight. Due to the receiving area of ​​the photodetector, the field of view is very small, which is not conducive to the collection of optical information. Therefore, it is hoped that the optical system function of the front end of the receiver is similar to the antenna function in wireless communication: large field of view, large gain effect. However, in the existing optical lens used as an optical system for optical information collection, the lens is a non-movable single-aperture st...

AI Technical Summary

Problems solved by technology

However, when the external light in these two structures enters the lens, it needs to be gathered layer by layer. Part of the focused light in the previous layer will pass through the gap of the single lens in the next layer, and this part of the light will be lost.

And the direction cannot be adjusted. At the same time, there are difficulties in the processing of crystal cones.

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