photophone

Noun

Meaning

An apparatus for the production of sound by the action of rays of light.

Source: Webster's dictionary

Examples

Bell was so ecstatic that he wanted to jointly name his new invention and his new daughter Photophone (Greek: "light–sound"),sfn citation Bell wrote: "Only think! Source: Internet

The next few years saw a race to design, implement, and market several rival sound-on-disc and sound-on-film sound formats, such as Photokinema (1921), Phonofilm (1923), Vitaphone (1926), Fox Movietone (1927) and RCA Photophone (1928). Source: Internet

See also report "Invisible Ray Transmits Pictures" in Science and Invention, November 1929, Vol. 17, p. 629. * White, R.H. "Photophone". Source: Internet

In general science, discoveries will be make by the Photophone that are undreamed of just now. Source: Internet

You are the grandfather of the Photophone and I want to share my delight at my success. Source: Internet

Several military laboratories, including those in the United States, continued R&D efforts on the photophone into the 1950s, experimenting with high-pressure vapour and mercury arc lamps of between 500 and 2,000 watts power. Source: Internet

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