photophone


Also found in: Wikipedia.

photophone

(ˈfəʊtəʊˌfəʊn)
n
(General Physics) physics a device for the communication of sound on a beam of light. Used to transmit the first ever wireless telephone messages.
References in periodicals archive ?
The third part of the piece is a text by Bridle, in which he delivers an equally speculative and convincing history of "cloud thinking," ranging from the development of the photophone to the latest efforts in weather control by rain-cloud seeding.
Alexander Graham Bell not only developed and built the first telephone system, but went on to invent the photophone, which transmitted words along a beam of light; similar to mobile phone technology used today 100 years later
The photoconductivity of selenium found its use in a photometer by Siemens, 1875, a photophone by Graham Bell, 1880, an optophone by Fourniere d'Albe, 1912 and then talking films in 1921 [61].
Alfred Hitchcock's Blackmail (1929), credited with being the first sound film in the United Kingdom, was recorded using the sound-on-disc technology of the RCA Photophone.
Bell ensayo en 1880, con un dispositivo llamado photophone y la luz solar, utilizar tales ondas en las comunicaciones.
If you're visiting Grandma this year (and Sarah Silverman says you should), take her the GE PhotoPhone.
94) RCA Photophone, supra note 91 at 195; Societe Technique de Pulverisation Step v Emson Europe Ltd.
In 1877, he formed the Bell Telephone Company and three years later established the Volta Laboratory where he invented the photophone - a device which enables sound to be transmitted on a beam of light.
While some consider optical wireless to be bleeding-edge technology, its origins date back to Alexander Graham Bell's photophone.
The photophone has given him a synesthetic thrill he's known only in poetry.
Over a century ago Alexander Graham Bell developed the photophone, a device that carried speech from one point to another by means of vibrating mirrors and a beam of sunlight.