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fiber optic lighting knowledge

Fiber-optic lighting，Fiber itself is not light, but can return optical fiber for illumination; fiber optic lighting, the choice of optical fiber, optical fiber materials according to different, often can be divided into quartz fiber, multi-component glass fiber and plastic optical fiber POF, etc. This paper introduces POF principle of the transmission of light, the other optical fiber transmission principles with the transmission of light POF principle is the same.  

Perceives light in a transparent cylinder in the forward propagation through multiple total reflection phenomenon, they are the ancient glass-blowing artists. The first described the phenomenon of science, but it is the Royal Society, John • Tyndall demonstrated to the British Royal Society, a famous experiment, he was filled with a water vessel, so that water from the vessel's side of the hole out, when the light is projected on the water with the water transfer out.  In 1880, William • Wheeler  that "light pipe" scenario, and the U.S. patent, which is the earliest documented "remote lighting" device, whose basic principle is: the inner wall coated with a reflective layer center of the tube to the same light source as tap water lead to a number of locations the need for lighting, which is actually the prototype of fiber used for lighting, fiber optic lighting systems can be seen as a simple and above "pipeline system" similar to a system, in this system, the transmission medium is light, and to transmit light of the "pipeline" is the optical fiber, optical fiber can transmit light from the light source to the need for lighting a specific area. 1954, "Nature" magazine published a Hopkin's and Kapany successfully with 10,000 to 20,000 of the fiber bundle to transmit images of the article, Van Heel low refractive index cladding that the role of image transmission fiber and the fiber to achieve success layer optical fiber made marked progress in these two subjects as the birth of a new, 1966, the British Standards Institute British Telecom Chinese scientist Charles KCKao and Dr GAHockham detailed study of the glass in the transmission loss, the article "for the optical frequency of the Dielectric fiber surface waveguides," published in the London Electrical Engineers (IEE) journal, they theoretically pointed out: If the optical fiber in the reduction or elimination of harmful impurities such as transition metal ions can greatly reduce the transmission loss and improve the optical fiber transmission capacity, thus promoting the study of optical fiber manufacturing process. POF is an optical fiber, and fiber optic fiber optic lighting for the basic principle is to use light in the interface of different refractive index total reflection, to achieve high optical transmission in optical fibers and optical fiber coupled with a sufficient light source, and through a combination with a variety of optical components to achieve the desired lighting effects, to understand the transmission of light in fiber mode, are presented in the meridional ray POF in the transmission characteristics.