Nipkow Scanning Disk
The Nipkow Scanning Disk
Inspired by the telegraph and photography, many 19th century inventors sought ways to capture, transmit, and view images by electricity. One of the most influential inventors was Paul Nipkow (1860-1940), who in 1884 proposed a striking new way to translate a visual image into an electrical signal.
Later inventors, John Logie Baird and Charles F. Jenkins, retained the principle of the scanning disk, but employed electronic amplifiers and other inventions to improve the system. With the advent of "all electronic" TV, the disk disappeared, but the concept of chopping up an image into single picture elements and transmitting them in succession is retained even today in modern television, videotape, and digital imaging systems