Electric lamp and discharge devices – Cathode ray tube – Plural beam generating or control
Patent
1985-08-27
1986-12-16
DeMeo, Palmer C.
Electric lamp and discharge devices
Cathode ray tube
Plural beam generating or control
313447, 313451, 313456, H01J 2950, H01J 2982
Patent
active
046299343
ABSTRACT:
The novel electron gun comprises, as in prior guns, a plurality of cathode assemblies and at least two spaced successive electrodes having aligned apertures therethrough for passage of a plurality of electron beams. The cathode assemblies and the electrodes are individually held in position from a common ceramic member. The ceramic member has a first major surface and an oppositely disposed second major surface with a metallized pattern formed on at least a portion of each major surface. The electrodes are attached to the first major surface, and the cathode assemblies are attached to the second major surface. A transition member is attached to the metallized pattern on the first major surface. The transition member includes a substantially flat first part and a second part electrically isolated from the first part. The second part has a flat portion attached to the metallized pattern on the first surface and two upright portions substantially perpendicular to the flat portion and substantially parallel to each other. One of the electrodes is attached to the first part of the transition member. A plurality of support members are disposed between the other electrode and the upright portions of the second part of the transition member, whereby the other electrode can be positioned laterally and longitudinally with respect to the one electrode and secured in alignment therewith.
REFERENCES:
patent: 4298818 (1981-11-01), McCandless
patent: 4500808 (1985-02-01), McCandless
patent: 4520292 (1985-05-01), van Hekken et al.
patent: 4558254 (1985-12-01), Opresko
U.S. patent application Ser. No. 643,175, entitled, "Multibeam Electron Gun Having a Cathode-Grid Subassembly and Method of Assembling Same", filed on Aug. 22, 1984, by McCandless et al. (RCA 80,211).
U.S. patent application Ser. No. 643,314, entitled, "Structure For and Method of Aligning Beam-Defining Apertures by Means of Alignment Apertures", filed on Aug. 22, 1984, by S. T. Villanyi (RCA 80,130).
U.S. patent application Ser. No. 735,261, entitled, "Multibeam Electron Gun Having a Transition Member and Method for Assembling the Electron Gun", filed on May 17, 1985, by H. E. McCandless (RCA 81,197).
"Multibeam Electron Gun Having Means for Positioning a Screen Grid Electrode Relative to a Main Focusing Lens", (RCA 82,000), filed concurrently herewith by S. T. Opresko; U.S. patent application Ser. No. 769,970.
Coughlin Jr. Vincent J.
DeMeo Palmer C.
Irlbeck Dennis H.
RCA Corporation
Whitacre Eugene M.
LandOfFree
Multibeam electron gun having means for positioning a screen gri does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Multibeam electron gun having means for positioning a screen gri, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multibeam electron gun having means for positioning a screen gri will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-246567