| 摘要 |
<p>A molded fiber optical keyboard having a molded fiber optic keys wherein a matrix of elongated, parallel bundles of molded fiber optical assemblies (12, 14) are arranged into separate, planar layers disposed at right angles to one another. The individual light conductors (16) of each bundle of molded fiber optics are stair-stepped in length relative to one another with the intersections of similar length conductors in each one of the two layers separated a sufficient distance so as to accommodate a fiber optic switch member. The switch member is provided with an angularly disposed through aperture reaching from one vertical side surface to the opposite side vertical side surface and is adapted to couple light from one planar layer of light conductors to the other planar layer of light conductors or to block light completely from one to the other layer of light conductors. A fiber optic strand or cable can be substituted for the angular aperture in the key switch member.</p> |
