| 摘要 |
<p>METHOD OF ASSEMBLING A CATHODE RAY TUBE A bulb assembly, including a faceplate panel portion and a mount assembly, comprising a stem and a multibeam electron gun assembly, are positioned in axial alignment on respective central longitudinal axes. A reference plane which contains the central longitudinal axis of the bulb assembly and is parallel to a plurality of parallel phosphor lines disposed on one surface of the faceplate panel portion, is established. An orientation plane is then defined with reference to the structure of the electron gun assembly. The orientation plane contains the central longitudinal axis of the mount assembly and two reference points on the structure of the electron gun assembly and passes through the in-line electron beam apertures. The mount assembly is then rotated with respect to the bulb assembly on the coincident longitudinal axes until the orientation plane is perpendicular to the reference plane as optically indicated by the alignment of the two reference points on an optical display which has superimposed the image of the phosphor lines. Then, while maintaining this rotational orientation, the mount assembly is actually moved within the bulb assembly to a desired longitudinal location with respect to the faceplate panel portion. The bulb assembly and mount assembly are then permanently assembled.</p> |
