OPTICAL SYSTEM FOR COLOR IMAGE PROJECTING APPARATUS

摘要

A color image projecting apparatus having three cathode ray tubes which produce images different in color and two projecting lenses. A first primary color image reproduced on a first cathode ray tube is projected on a screen through a first projecting lens, and second and third primary color images reproduced on second and third cathode ray tubes are synthesized by a dichroic mirror and then projected on the screen through a second projecting lens. In this case, the projecting axes of the first and second projecting lenses are so arranged to converge two images passed therethrough on the screen.