Contents I. Introduction
Fiber optic imaging devices, including fiber optic taper (FOT), fiber optic plate (FOP) and fiber optic inverter (FOI), refer to the coherent bundle fused by a large number of optical fibers. They are widely used in the field of X-rays detection, night vision, medical imaging and so on [1]. FOT is a coherent fiber optic plate that transmits either a magnified or reduced image from its input surface to its output surface. All small end diameters are optimized for 1/2” or 2/3” CCD chip sizes. Typical applications include image magnification or reduction, CCD coupling, fluoroscopy, and light sensors. It has been widely used in CCD coupling, image intensifier, coupling, medical and dental radiography, video imaging and advanced imaging applications [2]. FOP is a coherent fiber optic plate that precisely transmits an image from its input surface to its output surface. They are commonly used for high resolution image transfers that include CRT/LCD displays, CCD coupling, X-ray imaging, and image intensification[3]. FOT can be used in the image inversion system. It makes the input image inversion 180 from in output surface. FOT can replace the optic lens system in the low light level night vision instrument and can greatly reduce the size, weight and cost of image intensifiers and miniaturizes the night vision devices. In the same time, fiber optic inverter has the good property of resolution and clear image transmission. It has been widely used in all devices requiring image inversion [4].
