| 摘要 |
An optical switching mechanism including a vibrator having a pair of parallel reeds which are sustained in vibration at a rate determined by the resonance characteristic of the vibrator, the free ends of the reeds being ganged together by a headpiece. The arrangement is such that as the reeds sway simultaneously from side to side, the headpiece is caused to undergo a translating movement substantially free of an arcuate component. Mounted on the headpiece is a triangular reflecting element whose apex, in the static state of the vibrator, is aligned with a beam of incident radiant energy, whereby as the element, in the dynamic state, shifts to either side of the beam, the beam is deflected by the angled faces of the element in alternate directions.
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