Projection television receiver

Abstract

Abstract PURPOSE:To change the projection distance of a picture with a simple operation, by attaching freely movably CRTs and lenses, which are placed on both sides of the center CRT and the center lens respectively, out of three CRTs and lenses so that relative angles of these CRTs and lenses to the center CRT and the center lens are adjusted. CONSTITUTION:CRTs 3R, 3G, and 3B and lenses 4R, 4G, and 4B are attached to samll box bodies 7R, 7G, and 7B individually, and these box bodies are attached to a common frame 8, and CRTs 3R and 3B and lenses 4R and 4B are attached freely rotatably to the frame 8. In this constitution, when screws 11R, 11B, 12R, and 12B are loosened to move and adjust vertically coupling metallic jigs 10R and 10B of separate parts, angles of box bodies 7R and 7B on both sides to the center box body 7G are changed optionally. As the result, relative angles of projection CRTs 3R and 3B and lenses 4R and 4B on both sides to center projection CRT 3G and lens 4G are changed, and thus, the projection distance is changed optionally.

Inventors

• 👤 Hachiro Arita
• 👤 有田　八郎

Bibliographic Details