Fiber Optics

光纤

The field of fiber optics depends upon the total internal reflection of light rays traveling through tiny optical fibers. The fibers are so small that once the light is introduced into the fiber with an angle within the confines of the numerical aperture of the fiber, it will continue to reflect almost losslessly off the walls of the fiber and thus can travel long distances in the fiber. Bundles of such fibers can accomplish imaging of otherwise inaccessible areas.

光纤领域依赖于光束在微小光学纤维中通过全内反射传播。这些纤维非常细，一旦光以在光纤数值孔径范围内的角度进入光纤，它将几乎无损耗地在光纤壁上反射，从而可以在光纤中长途传播。由这样的光纤束可以实现原本无法接触区域的成像。

Peacock feather color

孔雀羽毛颜色

Index

Modern Optics Concepts

索引现代光学概念

HyperPhysics***** Light and Vision

HyperPhysics ***** 光与视觉

R Nave

Go Back

Fiber Optic Imaging

光纤成像

Fiber optic imaging uses the fact that the light striking the end of an individual fiber will be transmitted to the other end of that fiber. Each fiber acts as a light pipe, transmitting the light from that part of the image along the fiber. If the arrangement of the fibers in the bundle is kept constant then the transmitted light forms a mosaic image of the light which struck the end of the bundle.

光纤成像利用了这样的事实：当光照射到单根光纤的末端时，它会传送到该光纤的另一端。每根光纤都像一个光导管，将图像中某一部分的光沿光纤传输。如果光纤束中的光纤排列保持不变，那么传输的光会形成一个马赛克图像，该图像反映了照射到光纤束末端的光。