The history of television begins with the work of many individuals in the late 19th and early 20th centuries. Constantin Perskyi coined the word television in a paper read to the International Electri
Family watching TV, 1958
The earliest photograph of a television picture, showing the face of Oliver Hutchinson in June 1926. The television picture was projected using Baird's television camera.
Tihanyi' Radioskop patent (1926) was recognized as Document of Universal Significance by the UNESCO
Mechanical television or mechanical scan television is an obsolete television system that relies on a mechanical scanning device, such as a rotating disk with holes in it or a rotating mirror drum, to
History of television
…TV set, TV, or telly, is a device that combines a tuner, display, and speakers for the purpose of viewing television. Introduced in the late 1920s in mechanical form, television sets became a popular consumer product after World War II in electronic form, using cathode ray tubes. The addition of color to broadcast…
Watching a homemade mechanical-scan television receiver in 1928. The televisor (right), which produces the picture, uses a spinning metal disk with a series of holes in it, called a Nipkow disk, in front of a neon lamp. Each hole in the disk passing in front of the lamp produces a scan line that makes up the image. The video signal from the television receiver unit (left) is applied to the neon lamp, causing its brightness to vary with the brightness of the image at each point. This system produced a dim orange image
Ernst Ruhmer demonstrating his experimental television system, which was capable of transmitting 5 by 5 pixel images of simple shapes over telephone lines, using a 25-element selenium cell receiver (1909)
Baird and his television receiver
Jenkins Television Co. rotating disk television camera, 1931