Dénes from Mihály

Dénes from Mihály

Dénes von Mihály (born July 7, 1894 in Gödöllő ( Austria-Hungary ), † August 29, 1953 in Berlin ) was a Hungarian physicist and technician. He was the developer of a mechanical television system .

Beginnings

Even as a student in Budapest, Dénes von Mihály was concerned with the idea of ​​electrically transmitting images over long distances. According to his own statements, he is said to have succeeded for the first time on July 7, 1919 with his Telehor , when he wanted to have shadow images of moving scissors and pliers transmitted five kilometers over a cable. His apparatus is said to have worked with a Nipkow disk , i.e. with mechanical scanning.

However, Mihaly's claims of successful television attempts in 1919 are not verifiable.

In Berlin

Mihály's grave in the Wilmersdorf cemetery

At the beginning of 1923 Mihály founded Telehor AG in Berlin-Wilmersdorf , which operated a television technology laboratory; In the same year he published the first book, which dealt exclusively with television technology: The electric television and the telehor . From February 1925 on, the company also worked with the Reichspost; so in February 1928 the first image transmissions from the Telehor laboratory to the Telegraph Technology Reichsamt. At the 5th radio exhibition , a television picture could then be shown to the public: The Telehor was still working with mechanical scanning, it showed a picture only 4 × 4 cm in size, which could be viewed with a magnifying glass. It consisted of 30 lines and a total of 900 points. 10 image changes per second did not allow flowing movement. Mihály offered the device as a Telehor folk television receiver ; However, it was hardly sold due to the poor picture quality, especially since no sound transmission was planned. On the night of March 8th to 9th, 1929, a picture converted by means of a Telehor image scanner was broadcast from the Reichspostzentralamt via medium wave so that it could be received by the television laboratories in the area. Here, too, the limits of mechanical television made themselves felt.

Mihaly found his final resting place in the Wilmersdorf cemetery .

literature

• Heinz Zemanek:  Mihály, Dénes von. In: New German Biography (NDB). Volume 17, Duncker & Humblot, Berlin 1994, ISBN 3-428-00198-2 , p. 489 f. ( Digitized version ).

Web links

• The electric television and the telehor