| 摘要 |
This application depicts a rectangular-type color cathode ray tube having a rearwardly flanged faceplate for suspending an approximately rectangular shadow mask assembly on the faceplate flange at a predetermined spacing from a screen-bearing surface of the faceplate. The mask assembly comprises a rigid frame to which is attached a shadow mask member; also, there are a plurality of mask suspension devices spaced around the assembly. At least one of the devices comprises a metal stud embedded in and extending inwardly from the faceplate flange, and mask-mounted means for retentively engaging said stud. The mask-mounted means comprises a sheet metal bracket integrally formed from the mask assembly so as to extend radially outwardly from the assembly; it also comprises a discrete metal leaf spring affixed at one end to the distal end of the bracket means and having provision on its distal end for retentively engaging the stud. The mask mounted means is characterized by having welded on the integrally formed bracket means at least one strip composed of a material having a coefficient of thermal expansion which is significantly different from that of the bracket means. The aforesaid strip is arranged on the bracket means and sized such that upon heating of the mask assembly, the bracket means bends out of its plane to effect a compensating adjustment in the spatial position of the mask assembly relative to the screen-bearing surface of the faceplate.
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