Hollow sunlight transmission fiber

Abstract

The invention discloses a hollow sunlight transmission fiber, which comprises a hollow core layer, a reflecting film, a quartz covering layer, a polymer inner layer and a polymer outer layer sequentially from in to outside, wherein the reflectivity of the reflecting film to sunlight is 95-99 percent, the refractive index of the reflecting film is ranked between that of the hollow core layer and that of the quartz covering layer, the refractive index of the quartz covering layer is less than that of the polymer inner layer, and the refractive index of the polymer inner layer is less than that of the polymer outer layer; the quartz covering layer is a doped quartz covering layer doped with germanium, fluorin, boron, phosphorus or aluminum; the polymer inner layer is a fluoropolymer coating layer which is made of fluoric acrylic resin; the polymer outer layer is a hard polymer coating layer which is made of resin materials doped with carbon or metal impurities; and the hardness of the polymer inner layer is less than that of the polymer outer layer. Due to the design, not only is the output loss smaller and long-distance realized, but also the cost performance of lighting is higher, and the safety is better.

Description

technical field [0001] The invention relates to a sunlight transmission optical fiber, in particular to a hollow sunlight transmission optical fiber, which is particularly suitable for generating lighting effects when transmitting sunlight. Background technique [0002] With the development of optical fiber technology, sunlight lighting technology has also been developed rapidly. For example, a large number of related technologies have been disclosed and used for lighting devices that track the trajectory of the sun and gather sunlight to the maximum. However, in the following two occasions, the Such technology can not play the role of sunlight lighting. [0003] First of all, due to the needs of people's work and life, a large number of office buildings, shopping malls, supermarkets, underground facilities, underground work areas, etc., require long-term lighting even in the daytime, which consumes a lot of electric energy. At the same time, these The area needs to use sha...

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to overcome the defects and problems in the prior art that the output loss is large, the long-distance transmission cannot be realized, the cost performance of lighting is low, and it is not conducive to lighting, and to provide a kind of output loss that can realize Long-distance transmission, high cost performance in lighting, and hollow-core sunlight transmission fiber that is conducive to lighting

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