Pál Selényi
Encyclopedia
Engineer Pál Selényi
was known as the "father of xerography
" at Tungsram
corporation.
He is also known as Paul Selenyi. Chester Carlson
read one of Selenyi's papers in the 1930s and was very greatly impressed; subsequently, he invested in a big effort to develop xerography
. That may be the reason why Selenyi was known as the "father of xerography
" by some people. (Reference: Please read the book "Copies in seconds" by David Owen. In this book, Pál Selényi is known as Paul Selenyi.)
Pál Selényi studied physics and mathematics at the Budapest University.
After finishing his studies, Selényi started to work for the newly created Applied Physics Department of the University.
From his early works, Selényi was engaged in studying the nature of light. One well-known result of this period is Selényi's wide-angle interference experiment whose foundations go back to the discovery of the photoeffect (photo-electric effect), by Albert Einstein
, and Hertz's experiments on the reflection of radio waves.
Einstein's hypothesis was: elementary light sources emit electromagnetic waves along small solid angles, which had been supported by the fact that interference is simplest to achieve with lightwaves intersecting one another under small angles. The Young experiment is an example: light passing through a pair of neighboring holes (in close proximity) results in the appearance of interference patterns on a screen behind the holes, but only if the angle covered by the incoming beams does not exceed a couple of degrees of angular width.
was known as the "father of xerography
Xerography
Xerography is a dry photocopying technique invented by Chester Carlson in 1938, for which he was awarded on October 6, 1942. Carlson originally called his invention electrophotography...
" at Tungsram
Tungsram
Tungsram is a Hungarian manufacturer of light bulbs and vacuum tubes since 1896. General Electric, in 1990, acquired majority share in one of Hungary's largest, oldest, and internationally most prestigious firms, the light-source manufacturer Tungsram. Over the past six years GE has invested $600...
corporation.
He is also known as Paul Selenyi. Chester Carlson
Chester Carlson
Chester Floyd Carlson was an American physicist, inventor, and patent attorney born in Seattle, Washington....
read one of Selenyi's papers in the 1930s and was very greatly impressed; subsequently, he invested in a big effort to develop xerography
Xerography
Xerography is a dry photocopying technique invented by Chester Carlson in 1938, for which he was awarded on October 6, 1942. Carlson originally called his invention electrophotography...
. That may be the reason why Selenyi was known as the "father of xerography
Xerography
Xerography is a dry photocopying technique invented by Chester Carlson in 1938, for which he was awarded on October 6, 1942. Carlson originally called his invention electrophotography...
" by some people. (Reference: Please read the book "Copies in seconds" by David Owen. In this book, Pál Selényi is known as Paul Selenyi.)
Pál Selényi studied physics and mathematics at the Budapest University.
After finishing his studies, Selényi started to work for the newly created Applied Physics Department of the University.
From his early works, Selényi was engaged in studying the nature of light. One well-known result of this period is Selényi's wide-angle interference experiment whose foundations go back to the discovery of the photoeffect (photo-electric effect), by Albert Einstein
Albert Einstein
Albert Einstein was a German-born theoretical physicist who developed the theory of general relativity, effecting a revolution in physics. For this achievement, Einstein is often regarded as the father of modern physics and one of the most prolific intellects in human history...
, and Hertz's experiments on the reflection of radio waves.
Einstein's hypothesis was: elementary light sources emit electromagnetic waves along small solid angles, which had been supported by the fact that interference is simplest to achieve with lightwaves intersecting one another under small angles. The Young experiment is an example: light passing through a pair of neighboring holes (in close proximity) results in the appearance of interference patterns on a screen behind the holes, but only if the angle covered by the incoming beams does not exceed a couple of degrees of angular width.
External links
- "OPTICS BY HUNGARIANS" (including Pál Selényi), Zsolt Bor, Dept. of Optics and Quantum Electronics, József Attila University, SzegedSzeged' is the third largest city of Hungary, the largest city and regional centre of the Southern Great Plain and the county town of Csongrád county. The University of Szeged is one of the most distinguished universities in Hungary....
, HungaryHungaryHungary , officially the Republic of Hungary , is a landlocked country in Central Europe. It is situated in the Carpathian Basin and is bordered by Slovakia to the north, Ukraine and Romania to the east, Serbia and Croatia to the south, Slovenia to the southwest and Austria to the west. The...
, May 1999.