title: Plastic focusing fiber for imaging applications.
abstract: This paper presents a fabrication method and image transmission characteristics of a plastic focusing fiber which is flexible and has a nearly parabolic refractive index distribution. A new fabrication method is given, and the optimum control of index profile has been attained in order to reduce the aberration for imaging. A prototype fiber scope with TV monitor using the plastic fiber was made. Resolving power of 5-6 l/mm was shown to be attainable for fibers 3 mm in diameter and 150 mm in length.
authors.forename: K
authors.initials: K
authors.lastname: Iga
authors.forename: N
authors.initials: N
authors.lastname: Yamamoto