| 摘要 |
PURPOSE:To provide a plastic optical fiber having a small transmission loss, satisfactorily transmitting the light in a core material, capable of extending the practical fiber length, and allowing a light leak from the side face of the optical fiber by dispersing a scatterer on the whole sheath material or at the desired portion for a light leak. CONSTITUTION:A plastic optical fiber is constituted of a transparent core material and a sheath material and allows a light leak from the whole side face or the desired portion of the optical fiber, and a scatterer is dispersed on the whole sheath material or at the desired portion for a light leak. The outer size of the scatterer is preferably set to 0. 1-100mum and the sheath material dispersed with the scatterer is blended with polymers having different refraction factors. The scatterer is made of at least one kind selected from polymethyl methacrylate, polystyrene, polycarbonate, polyethylene, and fluororesin. A fluorine polymer or a methacrylic acid ester polymer having the refraction factor smaller than that of the core material is used for the sheath material. |
