Electric lamp and discharge devices – Cathode ray tube – Shadow mask – support or shield
Patent
1984-01-18
1985-10-15
DeMeo, Palmer C.
Electric lamp and discharge devices
Cathode ray tube
Shadow mask, support or shield
313477R, 313292, 427 68, H01J 2902, H01J 2907, H01J 2986, B05D 506
Patent
active
045476969
ABSTRACT:
A color tube comprises a panel having a patterned screen of phosphor deposits. The panel includes a registration affording arrangement defined by a first plurality of cavities each comprising an elongated, substantially radially aligned portion formed at a selected peripheral location upon the screen side of the panel. A frame dimensioned to enclose the screen comprises first and second spaced-apart surfaces and a registration affording arrangement defined by a second like plurality of cavities, each also comprising an elongated, substantially radially aligned portion formed at a selected peripheral location upon the frame's first surface. The pluralities of panel and frame cavities are arranged so that, collectively, the axes of the elongated portions of the panel cavities and of the frame cavities exhibit substantially the same radial geometry. A tensed foil color selection electrode having a pattern of apertures has a peripheral portion bonded to the frame's second surface. An indexing arrangement comprises a like plurality of spherical elements individually received between an assigned panel cavity and an adjacent, oppositely disposed confronting frame cavity, so that when the panel and frame cavities overlie, the spherical elements establish a precise repeatable registration between the frame and the panel, and thus between the foil apertures and the screen.
REFERENCES:
patent: 2625734 (1953-01-01), Lan
patent: 2961560 (1960-11-01), Flyer
patent: 3284655 (1966-11-01), Oess
patent: 3894321 (1975-07-01), Moore
Clarke, Jr. Ralph E.
DeMeo Palmer C.
O'Connor Cornelius J.
O'Shea Sandra L.
Zenith Electronics Corporation
LandOfFree
Tension mask registration and supporting system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Tension mask registration and supporting system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tension mask registration and supporting system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2431921