11-10-2016, 04:44 AM
2 colour film systems persisted until about 1930: https://en.wikipedia.org/wiki/Technicolor
Baird first showed colour experiments in 1928, using 3 spirals on a single scanning disc.
Campbell Swinton's 1908 and 1911 proposals for all electronic TV https://en.wikipedia.org/wiki/Alan_Archi...ll-Swinton suffered primarily from lack of any kind of workable camera tube.
Farnsworth's image dissector tube lacked charge storage and hence was very insensitive. However it was developed for specialist applications where there was plenty of light and its simple, rugged design made it suitable.
Baird first showed colour experiments in 1928, using 3 spirals on a single scanning disc.
Campbell Swinton's 1908 and 1911 proposals for all electronic TV https://en.wikipedia.org/wiki/Alan_Archi...ll-Swinton suffered primarily from lack of any kind of workable camera tube.
Farnsworth's image dissector tube lacked charge storage and hence was very insensitive. However it was developed for specialist applications where there was plenty of light and its simple, rugged design made it suitable.
www.borinsky.co.uk Jeffrey Borinsky www.becg.tv
