| 摘要 |
<p>1. An optical multiconductor of the silica glass type chracterized in that the multiconductor comprises 102 to 107 optical fibers of the silica glass type fused to one another, each of the optical fibers comprising a core made of doped silica glass and occupying at least 20% of the fiber in cross sectional area, and a cladding layer made of a kind of silica glass and formed on the core, the core having a refractive index distribution satisfying the following expression: n2?n1 -1 0.50(n1 - n1) where-in n0 is the refractive index of the core at its center, n1 is the refractive index of the core at its outermost portion, and n2 is the refractive index of the core at a position centered about the axis of the core and having an average radius of 0.65r1, the r1 being an average radius of the core. The multiconductor is suited to use as the image transmitter of an image scope for industrial, medical or other uses.</p> |
