Abstract: Image-transmitting bundled fibers and processes for producing the same in which a bundle of elemental image fibers is assembled without randomizing so as to maintain the picture image without distortion utilizing an inventive assembly technique. The assembled fibers are covered with cladding layer then surrounded by a light-absorbing layer of a disclosed preferred group of materials. Fiber bundles of the invention can have a length of several tens of kilometers while the bundles have a good flexibility and a sufficiently high number of elemental image fibers to convey a clear and satisfactory image.

Abstract: The present invention relates to a method of manufacturing aluminum wires for communication cables, insulated electric wires, etc., from aluminum for electrical purposes or as an aluminum alloy for electric conductors containing various additive elements, which is characterized in that cold working of 80% or more is given to the product after hot working, then low temperature intermediate annealing is carried out at a temperature of 100.degree. - 280.degree.C, then cold drawing of 50% or more is given and a continuous annealing is carried out. A manufacturing method is thus provided for aluminum wires for communication cables, insulated electric wires, etc., having excellent overall properties of strength, electrical conductivity, ductility, etc., which is suitable for the modernized high-speed manufacturing line and which is superior with respect to productivity and workability.