| 摘要 |
PCT No. PCT/SE84/00308 Sec. 371 Date May 22, 1985 Sec. 102(e) Date May 22, 1985 PCT Filed Sep. 25, 1984 PCT Pub. No. WO85/01803 PCT Pub. Date Apr. 25, 1985.An optical fiber switch comprising a fixed holder supporting a plurality of parallel fibers and a slide supporting a plurality of movable fibers having ends facing the ends of the fixedly mounted fibers. The slide is movable between first and second abutments in response to the activation of a magnetically activated armature. A first spring acts on the slide to displace it from the first abutment to the second abutment and a second stronger spring acts on the slide in opposition to the first spring. The armature carries an armature bracket which bears against the second spring to displace the second spring away from the slide when the armature is activated in order to diminish the action of the second spring so that the slide is displaced to the second abutment substantially only under the action of the first spring. |
