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Proceedings Paper

Early proposal for an acousto-optic gramophone
Author(s): Robert C. Chivers
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Paper Abstract

Some of the work of Professor AO Rankine, first presented to the Physical Society of London in 1919 is reviewed. Prior to discussing his work, elements of acousto-optics, and developments to that time are sketched in order to provide a content for Rankine's innovations. His initial proposal was for a system to transmit speech sounds over distances of several kilometers using light waves. Various possibilities were discussed, the most successful of which was based on the interference of a vertical grid with a superimposed image of itself. This proposal was shortly followed by a successful demonstration of the possibility of using this 'photophone' in conjunction with a rapidly moving photographic film to record any type of sounds. They could then be replayed using a relatively simple optical system and a selenium detector. Some comments are made on the ration between Rankine's system and more recent developments in optical sound recording.

Paper Details

Date Published: 11 November 1998
PDF: 8 pages
Proc. SPIE 3581, Acousto-Optics and Applications III, (11 November 1998); doi: 10.1117/12.330481
Show Author Affiliations
Robert C. Chivers, Univ. of Southampton (United Kingdom)

Published in SPIE Proceedings Vol. 3581:
Acousto-Optics and Applications III
Antoni Sliwinski; Bogumil B. J. Linde; Piotr Kwiek, Editor(s)

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