Pre-cursor to Televesion

Baird is best remembered for inventing a mechanical television system. During the 1920's, John Baird and American Clarence W. Hansell patented the idea of using arrays of transparent rods to transmit images for television and facsimiles respectively.

Baird's 30 line images were the first demonstrations of television by reflected light rather than back-lit silhouettes. John Baird based his technology on Paul Nipkow's scanning disk idea and later developments in electronics.