PICTURES BY TELEGRAPH

New Zealand Times, Volume XXXII, Issue 7024, 12 January 1910, Page 3

PICTURES BY TELEGRAPH

A paper was read on November 25th (says "The Times"), at the Royal Society of Arts, by Mr T. Thorne Baker, : on "Telegraphing Pictures." Ho explained that the main principle of photo-tele-graphy involved the use of a transparent photograph, or sketch, mounted on a revolving cylinder, through which a light was projected, whereby certain electrical instruments wore actuated according to whether- the * light- was ’ transmitted through the clear or dense portions of the photograph. ’ These motions were reproduced by electric current on -an- , other cylinder at the receiving end. by which means a * light was thrown on a sensitive photographic film, the light being varied in intensity so that the gradations of the photograph were reproduced. He said that, in November, 1907, Professor Korn transmitted pictures from Panis to London in twelve minutes, an installation haying been completed by the "Daily Mirror" in their London, offices. It was largely owing - to the patience and enterprise of that journal that photo-telegraphy stood where it did at present. 'He thought that Professor Korn would ultimately succeed in transmitting pictures from London to New York. He himself was trying to solve the matter by wireless telegraphy, and he showed two results of his experiments. • . ■