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Between Invention and Discovery: A. G. Bell's Photophone and Photoacoustic Research
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 Title & Authors
Between Invention and Discovery: A. G. Bell's Photophone and Photoacoustic Research
Ku, Ja-Hyon;
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 Abstract
The photophone, Alexander Graham Bell's device for transmitting sound through light was patented in 1880. It included the transmitter modulating and reflecting strong light like sunlight to a distant receiver which produced sound. In this working of the photophone, the discovery of the sound-emitting effect under illumination was very essential. Longing for being famous in the scientific community, Bell focused on presenting various methods for producing sounds and for maximizing the loudness by performing intensive research on the photoacoustic effect. Bell's scientific research on photoacoustics was successful in establishing himself as a scientist and laid a foundation of photoacoustic analysis. And his invention became a basis for other researchers' subsequent technologies like fiber-optic communication.
 Keywords
Sound;transmission;light;Bell;photophone;photoacoustic effect;
 Language
English
 Cited by
 References
1.
A. G. Bell, "Apparatus for Signaling and Communicating, Called Photophone," U. S. Patent No. 235,199, 1880.

2.
R. V. Bruce, Bell: Alexander Graham Bell and the Conquest of Solitude, Cornell University Press, Ithaca, 1990.

3.
L. Coe, The Telephone and Its Several Inventors: A History, McFarland, Jefferson, 1995.

4.
A. G. Bell and S. Tainter, "Selenium Cell," U. S. Patent No. 235,497, 1880.

5.
R. V. Bruce, Bell: Alexander Graham Bell and the Conquest of Solitude, Cornell University Press, Ithaca, 1990.

6.
R. T. Beyer, Sounds of Our Times: Two Hundred Years of Acoustics, Springer, New York, 1999.

7.
A. G. Bell, "Upon the Production of Sound by Radiant Energy," The National Academy of Sciences, pp. 2-4, April 21, 1881.

8.
A. G. Bell, Upon the Production of Sound by Radiant Energy, Gibson Brothers, Washington D. C. 1881.

9.
W. H. Preece, "On the Conversion of Radiant Energy into Sonorous Vibrations," Proceedings of the Royal Society of London, pp. 513-514, 1881.

10.
Rayleigh, "The Photophone," Nature 23, pp. 1-3, 1881.

11.
A. G. Bell, Upon the Production of Sound by Radiant Energy, Gibson Brothers, Washington D. C. 1881.

12.
H. V. Hayes and E. R. Cram, "Radiophony," U. S. Patent No. 654,630, 1900.

13.
D. A. Kleinman et al., "Opto Acoustic Telephone Receiver," U. S. Patent No. 4,002,897, 1977.