EP 0121628 A1 19841017 - Cathode-ray tube having taut shadow mask.
Title (en)
Cathode-ray tube having taut shadow mask.
Title (de)
Kathodenstrahlröhre mit Straffschattenmaske.
Title (fr)
Tube cathodique avec masque d'ombre tendu.
Publication
Application
Priority
US 47158983 A 19830303
Abstract (en)
A shadow mask assembly for a cathode-ray tube wherein the perforated shadow mask membrane is stretched and in the stretched condition is affixed to a rigid frame. The frame securely holds the membrane in the tensioned condition and as the mask is heated during the operation of the tube, the expansion of the membrane merely relaxes the tension without distortion to the membrane.
IPC 1-7
IPC 8 full level
H01J 9/14 (2006.01); H01J 29/07 (2006.01)
CPC (source: EP)
H01J 9/142 (2013.01); H01J 29/07 (2013.01); H01J 2229/0722 (2013.01); H01J 2229/0733 (2013.01)
Citation (search report)
- [Y] US 2611100 A 19520916 - FAULKNER RICHARD D, et al
- [Y] US 3894321 A 19750715 - MOORE JOHN H
- [A] US 4069567 A 19780124 - SCHWARTZ JAMES W
- [A] US 4333034 A 19820601 - OHGOSHI AKIO, et al
- [A] BE 666836 A 19660113
- [A] US 2750524 A 19560612 - BRAHAM FRANK G
Designated contracting state (EPC)
DE FR GB NL
DOCDB simple family (publication)
DOCDB simple family (application)
EP 83307256 A 19831129; JP 4119784 A 19840302