To provide a color cathode-ray tube with a getter assembly, ensuring accurate positioning and orientation.
The color cathode-ray tube (10) has an evacuated envelope (11) including a funnel (15) sealed at one end to a face plate panel (12). A luminescent screen (22) is provided on an interior surface of the panel (12). A color selection electrode assembly (27) is disposed within the envelope (11) in proximity to the screen (22). An internal magnetic shield (30) having an exterior surface (32) is secured to the color selection electrode assembly (27) and is spaced from and extends along at least a portion of the funnel (15). The getter assembly (33) is disposed within the envelope (11) to deposit a film of a getter material onto the exterior surface (32) of the magnetic shield (30). The getter assembly (33) is improved by being detachably attached to the color selection electrode assembly (27) and prevented from rotating by an orientation plate (60) having a projection (70) with a flat contact surface bearing against the color selection electrode assembly (27).
ROLAND RICHARD E
OPRESKO STEPHEN THOMAS
Next Patent: SUBSTRATE STICKING APPARATUS