Because of this, even though the image quality is excellent, it will never equal a rigid lens
system. However, these bundles are incredibly flexible, and an image can be transmitted even
when the fiber is tied in a knot. Illumination for the fiber optic bundle is
provided by an external, high-intensity source through one or more light-carrying bundles.
Since these do not transmit an image, the fibers inside them do not have to be coherent and are
often randomly arranged. Since the intensity of the light is reduced in any optical interface