Large-core-diameter plastic side face light emitting optical fiber and optical cable manufacturing device

Abstract

The embodiment of the invention relates to the field of optical fiber manufacturing, in particular to a large-core-diameter plastic side face light emitting optical fiber and large-core-diameter plastic optical cable manufacturing device. The large-core-diameter plastic side face light emitting optical fiber manufacturing device comprises a co-extrusion machine, a vacuum shaping heat treatment machine and a secondary heat treatment machine. A large-core-diameter plastic side face light emitting optical fiber can be integrally extruded through the co-extrusion machine, is subjected to vacuum shaping through the shaping device and is then subjected to cooling treatment through the heat treatment devices, and therefore synchronous cooling conducted before a core layer material and a cover layer material enter air is achieved, the problem that when the large-core-diameter plastic side face light emitting optical fiber directly enters the air through a mold extrusion opening, due to the great temperature difference between the extrusion temperature and the air temperature, internal materials of the optical fiber deform is avoided, and the large-core-diameter plastic side face light emitting optical fiber and large-core-diameter plastic optical cable manufacturing device can be used for producing the large-core-diameter plastic side face light emitting optical fiber large in core diameter and good in light guide performance.

Description

technical field [0001] The embodiments of the present invention relate to the field of optical fiber and cable manufacturing, and in particular to a manufacturing equipment for large-core polymer side-light optical fiber and large-core polymer optical cable. Background technique [0002] Plastic Optical Fiber (POF), also known as polymer optical fiber or polymer optical fiber, is mainly composed of a transparent plastic core with a high refractive index and a transparent plastic cladding with a low refractive index. According to the way of light propagation, plastic optical fiber is usually divided into end-emitting optical fiber and side-emitting optical fiber. Side light optical fiber is also called whole body light emitting fiber or side light emitting fiber. This kind of fiber evenly scatters the light passing through the fiber along different directions along the side of the fiber, and has the effect of whole body light. [0003] With the continuous improvement of peop...

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Problems solved by technology

[0004] In the process of realizing the present invention, the inventor found that in the prior art, due to the structural characteristics of the large core diameter side light plastic optical fiber, in actual production, it is difficult to realize the co-extrusion production of the large core diameter side light optical fiber

Moreover, due to the large core diameter of the side-light optical fiber, the heat dissipation of the core material and the cladding material after plastic optical fiber extrusion is different, which changes the structure of the fiber and cannot form a smooth and flat core-clad interface, which affects the light guiding performance of side-light optical fiber products. The impact is relatively large, resulting in unsatisfactory light transmittance of side-lit optical fibers, resulting in no such case of co-extrusion production of large-core side-lit optical fibers in China.

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