Show new B back ack drop aids in television transmittal Transmit transmitting til ig A black back drop tor for the screens of television transmitting tubes results in more sharply focused and detailed television image according to a patent no issued is aed to willard wil ar hickok IC 0 of 0 bloomfield oom N J the back drop is a film ot graphite at th the back of the transparent mica support on which are mounted the photoelectric photo electric elements that convert the scene being televised into an electric image which is broadcast through the ether it is explained that when the scene is focused anthe on the ordinary photoelectric photo electric screen of the tele eye tube light from the ima image ge is reflect reflected ed bounces off the walls of 0 the tube back on to the screen so that a double image may be formed at the same time the photoelectric photo electric elements scatter the light all this it is indicated by past experience blurs and makes hazy the image to be broadcast the black back drop which is the subject of the patent on an the other hand absorbs the light which would thus ordinarily be reflected the result is a sharper more detailed image |