photophone

Noun

Meaning

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

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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