DEVICE FOR INFORMATION INPUT FROM SCREEN OF CATHODE- RAY TUBE Russian patent published in 1997 - IPC

FIELD: automation and computer engineering. SUBSTANCE: device has screen unit, display processor, device which outputs information on cathode-ray tube, information input device and optical unit. Screen unit of cathode-ray tube with optical unit is designed as fiber-optical surface plate which has light guides which ends have axial cone shape. Inner chambers of axial cones are filled with material which refraction index is less than corresponding index of central fiber core of light guide. Inner surface of surface plate is covered with alternating cathode- luminescent strips which are covered with metal and signal plate strips with photo-conducting layer. Index conductors are located between alternating strips and are insulated from them. EFFECT: increased functional capabilities for information input. 2 dwg