Hitachi Cable, Inc.

Hitachi Cable, Ltd. & Hitachi, Ltd.

Takanobu Ishibashi

Tomiya Abe

Noriaki Taketani

Yukio Shimazaki

Noboru Nakakuki

Norimoto Abe

Takayasu Asai

Kazuhide Oda

Masatoshi Tagami

Kouichi Okino

An improved plastic optical fiber and a process for fabricating the same are disclosed. The plastic optical fiber comprises a core and a cladding is formed around the core that has a lower refractive index than that of the core. The cladding consists of an inner transparent cladding and an outer colored, opaque cladding. These inner and outer claddings are formed to be bonded together by simultaneous extrusion thereof.

Plastic optical fiber

A synthetic resin optical fiber having the structure simplified and a stable light transmission characteristic is disclosed. The synthetic resin optical fiber comprises a transparent core and a cladding formed around the core, and the cladding has an inner transparent portion and an outer peripheral portion containing a light interruption substance such as a pigment and the like.

Synthetic resin optical fiber

Growing community of inventors

Ibaraki, Japan

Takanobu Ishibashi