Metal working – Barrier layer or semiconductor device making – Barrier layer device making
Patent
1975-05-01
1976-09-07
Lazarus, Richard B.
Metal working
Barrier layer or semiconductor device making
Barrier layer device making
29 2513, H01J 918
Patent
active
039785629
ABSTRACT:
This disclosure depicts a method of manufacturing a novel rectangular-type color cathode ray tube which insures that a phosphor screen pattern deposited on an inner surface of the tube faceplate is accurately referenced to the source of electron beams for the tube. In the fabrication of a rectangular-type color cathode ray tube which comprises a faceplate having a phosphor screen pattern deposited on an inner surface thereof, a funnel adapted to be sealed to said faceplate and a neck for receiving electron gun means which is sealed to said funnel, a method for referencing said screen pattern on said faceplate to an effective source of electron beams generated by the electron gun means. The method comprises 1) providing on the funnel a plural number of spaced inside funnel reference surfaces; 2) providing inside referencing means on the faceplate which define a plural number of inside faceplate reference surfaces spaced and located to engage the inside funnel reference surfaces when the faceplate and funnel are assembled, the inside faceplate and funnel reference surfaces being of such a number and arrangement as to uniquely determine and fix the location of the faceplate relative to said funnel; 3) depositing a phosphor screen pattern on an inner surface of the faceplate with reference to the inside faceplate reference surfaces; 4) attaching the neck to the funnel with the neck center line referenced to the inside funnel reference surfaces; and 5) sealing the faceplate to the funnel, including bringing the inside faceplate reference surfaces and the inside funnel reference surfaces into referencing engagement during the sealing operation to thereby reference the screen pattern on the faceplate to the neck center line and thus to the effective source of electron beams generated by electron gun means ultimately mounted on the center line of the neck.
REFERENCES:
patent: 3381347 (1968-05-01), Reinwall, Jr.
patent: 3497746 (1970-02-01), Duistermaat et al.
Coult John H.
Lazarus Richard B.
Zenith Radio Corporation
LandOfFree
Method of manufacturing a color cathode ray tube does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of manufacturing a color cathode ray tube, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of manufacturing a color cathode ray tube will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2165476