Projection TV tube system.

摘要

A projection TV tube system comprising a lens system and a monochromatic cathode ray tube having a faceplate arrangement which includes a compound filter (32) disposed between the faceplate (34) and a light scattering luminescent screen (36). The compound filter includes a multilayer interference edge filter (40) adjacent the screen and a multilayer matching filter (42) adjacent the faceplate. The edge filter reflects back into the screen light rays received from the screen which would contribute the halo, and the matching filter matches the optical admittances of the edge filter and the faceplate. The faceplate arrangement is adapted for use in the projection TV tube system.