National Geographic : 1950 Jun
New-type glass for RCA television picture tubes filters unwanted light, to give sharper, clearer images. Wdwlr/y/ cc/p//17ed- o/Cr bie ffer eiem/rsiw Now television pictures gain still greater contrast and def inition-through research origi nally initiated by scientists at RCA Laboratories. Their discovery: That wander ing light waves inside a picture tube-and inside the glass itself may cause halation and blur an image's edges. By introducing light-absorbing materials into the glass, the wayward flashes are absorbed so that only the light waves which actually make pic tures can reach your eyes! Glass companies, following this research, developed a new type of glass for RCA ... Filterglass. Minute amounts of chemicals give it, when the picture tube is inactive, a neutral tone. In action, images are sharper-with more brilliant contrast between light and dark areas. Reflected room light is also reduced. * * * See the latest in radio, television, and electronics at RCA Exhibition Hall, 86 West 49th Street, N. Y. Admission is free. Radio Corporation of America, RCA Building, Radio City, N. Y. The new Filterglass faceplate gives you more brilliant pictures on today's RCA Victor television receivers. RADIO COMfODOATOaM o-f AM/ffRCA /or/d Leadcer /7 ado - /7r*s //i -ie/e/'sion "Mention the National Geographic-It identifies you"