摘 要：光导纤维，简称光纤，是一种玻璃细丝纤维或塑料纤维，利用全反射原理传输光信号的传导工具。目前，光纤的应用已覆盖多个领域。光纤照明，通过光纤导体的光传输，将光输送到需要照明的区域，实现定向照明的效果。光纤照明的光与电分离、柔性传播、远离发光源、不受电磁干扰等诸多优势，多用在室内照明、水景照明、古文物照明与建筑照明以及易燃易爆场合等场合。基于以上原理，设计了一个简易的光纤照明装置，由电池点亮LED小灯柱，将光纤一端与LED小灯柱平行接入，光纤的另一端导入液体中，达到定向照明的效果。此装置设计简单稳定，凸显了光与电分离、远离光源等优势。83895

毕业论文关键词：光导纤维；光电分离；LED灯柱

The Design and Research of Optical Fiber Directional Lighting

Abstract: Optical fiber, made of glass or plastic filament, is an optical signals transmission tool by the total reflection。 Optical fiber has been applied in many fields, currently。 Optical fiber lighting refers to lighting transfer through the optical fiber and send to the lighting areas, in order to realize the directional lighting effect。 The advantages of the fiber optic lighting, such as separation of light and electricity, flexible transmission, being far away from the light source, disturbance of electromagnetic, are very remarkable。 The optical fiber lighting is extensively applied in indoor lighting, waterscape lighting, museum and building lighting, flammable and explosive occasions, etc。 Based on the principles and advantages, a simple optical fiber lighting system is designed。 In this system, a small LED lamp, parallel connected to one side of the optical fiber, is lighted by battery。 The other side of the optical fiber is put into liquid to achieve the effect of directional lighting。 The advantage of this simple design device is stable and highlights its advantages of separation of light and electricity, being far away from the light source, etc。

Key words: Optical fiber; Separation of light and electricity; LED lamp 

目    录

摘要 1

引言 1

1。 原理概述 2

1。1 光纤的结构 2

1。2 光纤的类型 2

1。3 光纤的射线理论分析 3

1。4 传导模和数值孔径 5

2。 光纤照明系统 5

2。1 光纤照明原理 5

2。2 光纤照明的特性 6

2。3 光纤照明系统组成 6

2。4 光纤照明的应用 7

3。 光纤照明系统的设计 8

3。1 光纤照明系统的组成及特点 8

3。2 光纤照明系统的构成 9

3。3 小型光纤照明系统的实现 10

4。 结束语 11

参考文献 11

致谢 12

光纤定向照明的设计及研究引言

从古到今，人们生活的各个方面都离不开照明，照明方式也经历了多代的变化，起初的火把照明到动植物油灯照明、蜡烛、煤油灯过渡，到现在的白炽灯、日光灯照明，凝聚了好几十代人的智慧。照明方式的更替给人们的生活起居、学习等方面带来了极大的便利，也促使人们对照明方式的研究有了更大的责任和兴趣。论文网