EP 0125356 A1 19841121 - Filter arrangement for cathode ray tubes.
Title (en)
Filter arrangement for cathode ray tubes.
Title (de)
Filteranordnung für Kathodenstrahlröhre.
Title (fr)
Arrangement de filtre pour tube à rayon cathodique.
Publication
Application
Priority
EP 83302667 A 19830511
Abstract (en)
A filter glass for filtering out harful ultraviolet rays from the pictures or figures displayed by cathode ray tubes. The filter glass comprises a laminate of two transparent, arcuate sheet glasses provided with an ultraviolet ray absorbent therebetween. The arcuate sheet glasses are formed to have a curvature conforming to the curvature of the screen face of the cathode ray tube for which the filter glass is to be used. The surface of the laminate facing the viewer is treated to provide a matted surface that does not reflect an image.
IPC 1-7
IPC 8 full level
H01J 29/86 (2006.01); H01J 29/89 (2006.01)
CPC (source: EP)
H01J 29/863 (2013.01); H01J 29/898 (2013.01)
Citation (search report)
- [A] US 2734142 A 19560207
- [A] US 4354739 A 19821019 - SCANLON ROBERT T, et al
- [A] US 2943964 A 19600705 - MAX GOLDENBERG
- [A] US 4039719 A 19770802 - MATSUDA TADASHI, et al
- [A] US 4034895 A 19770712 - ORTIZ ENID
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI LU NL SE
DOCDB simple family (publication)
EP 0125356 A1 19841121; EP 0125356 B1 19871007; AT E30198 T1 19871015; AU 1427383 A 19841108; AU 558815 B2 19870212; DE 3374037 D1 19871112; ZA 833205 B 19840426
DOCDB simple family (application)
EP 83302667 A 19830511; AT 83302667 T 19830511; AU 1427383 A 19830505; DE 3374037 T 19830511; ZA 833205 A 19830505